A spring-type key device for a computer keyboard

Abstract

The present invention relates to the technical field of mechanical axis keyboards, and specifically to a spring-type key device for a computer keyboard, comprising a shell with a top groove on the top and an axis core elastically connected thereto; a keycap matching the axis core; a protective cover for enclosing the top groove, the protective cover having a through hole connected to the top groove, and a water outlet hole on the surface of the protective cover; a driving member disposed between the keycap and the axis core and synchronously lifted and displaced with the two, one end of the driving member vertically passing through the through hole and extending toward the top groove. The present invention can drive the driving member to move downward by pressing the keycap, the driving member cooperates with the driving groove to drive the driven member to rotate, and the driven member drives the wiper member to rotate, thereby scraping the water at the bottom of the protective cover into the water outlet hole, and the water is discharged from the protective cover through the water outlet hole. In combination with the existing sealing structure, it can further prevent water from entering the shell through the top groove, and has a good drainage effect and is convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical axis keyboards, and in particular to a spring-type key device for a computer keyboard. Background Art

[0002] The mechanical axis keyboard is composed of keycaps, upper shell, mechanical axis, positioning plate, circuit board and bottom shell from top to bottom. The mechanical axis includes an axis core, each of which contains a spring and two contact points. When the keycap is pressed, the axis core will move down, the spring is compressed, and the axis core closes the two originally separated contact points and connects with the circuit board circuit, thereby completing the transmission of an electrical signal. When the keycap is released, the axis core is reset by the spring, thereby disconnecting the two contact points. This structure allows each key of the mechanical keyboard to have an independent switch, so the mechanical keyboard provides a high degree of independence and non-interference between the keys.

[0003] The current technical problem is: there is a gap between the existing keyboard and the keys. Once liquid is spilled on the keyboard, the liquid will flow into the mechanical axis along the gap between the keyboard and the keys, causing a short circuit when the two contact points come into contact with water. Although most keyboards on the market are currently equipped with a sealing structure for waterproofing, they can only play a simple water-proof role, but cannot drain water directly from the key shell. As time goes on, water may still penetrate the seal and enter the shell, causing a short circuit. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a spring-type key device for a computer keyboard to solve the technical problem that the existing mechanical axis keyboard cannot discharge water out of the shell and thus has a poor waterproof effect.

[0005] Based on the above purpose, the present invention provides a spring-type key device for a computer keyboard, comprising:

[0006] A top groove is provided on the top, and a shell body with an axle core is elastically connected inside;

[0007] A key cap matching the shaft core;

[0008] A protective cover for enclosing the top groove, the protective cover is provided with a through hole connected to the top groove, and a water outlet hole is provided on the surface of the protective cover;

[0009] A driving member disposed between the key cap and the shaft core and synchronously lifted and lowered with the key cap and the shaft core, wherein one end of the driving member vertically penetrates the through hole and extends to the top groove;

[0010] A water barrier for preventing water from entering the housing from the top groove;

[0011] A driven member provided in the protective cover and used for converting the vertical motion of the driving member into its own rotational motion;

[0012] The wiper member disposed around the driven member, when in use, presses the key cap to cause the driving member to drive the driven member, thereby driving the wiper member to discharge water out of the protective cover through the water outlet hole.

[0013] As a preferred technical solution of the present invention, the driving member has a spiral driving surface, and the driven member has a driving groove adapted to the spiral driving surface. When the driving member moves vertically relative to the driving groove, its spiral driving surface can cooperate with the driving groove to drive the driven member to rotate horizontally. The protective cover is provided with a limiting structure for preventing the driven member from rising and falling synchronously with the driving member.

[0014] As a preferred technical solution of the present invention, the wiper member is at least one elastic scraper blade connected to a follower member, and the protective cover is provided with a protrusion that cooperates with the elastic scraper blade. The protrusion is used to deform the elastic scraper blade when the elastic scraper blade wipes water, so that the elastic scraper blade has elastic potential energy to water, thereby ejecting water from the protective cover through the water outlet hole.

[0015] As a preferred technical solution of the present invention, the elastic scraper has an initial section and an ending section, one end of the initial section is connected to the follower, the other end of the initial section is connected to the ending section, and a fold portion is formed at the hinge between the initial section and the ending section.

[0016] As a preferred technical solution of the present invention, the follower has a first direction and a second direction opposite to each other. When the driving member moves downward relative to the follower, the follower drives the elastic scraper to rotate along the first direction; when the driving member moves upward relative to the follower, the follower drives the elastic scraper to rotate along the second direction.

[0017] As a preferred technical solution of the present invention, the protrusion includes a first protrusion and a second protrusion. The first protrusion is located on the active trajectory of the first turning point of the crease portion, and is used to impart elastic potential energy to the elastic scraper blade when the elastic scraper blade is wiping water. The second protrusion is located on the active trajectory of the second turning point of the crease portion, and is used to impart elastic potential energy to the elastic scraper blade during the resetting process of the elastic scraper blade, thereby removing water attached to both sides of the elastic scraper blade.

[0018] As a preferred technical solution of the present invention, the water-blocking member is a water-blocking plate arranged in the protective cover, and the water-blocking plate divides the interior of the protective cover into a water storage chamber and a water-blocking chamber. The limiting structure includes an upper end of the inner wall of the protective cover and an upper end of the water-blocking plate. A limiting space for the elastic scraper is formed between the upper end of the inner wall of the protective cover and the upper end of the water-blocking plate. The water-blocking plate is provided with a through groove for the movement of the driving member, and the driven member is rotatably arranged in the through groove. A sealing ring is arranged at the gap between the driven member and the through groove. The first protrusion and the second protrusion are arranged at the top of the inner wall of the protective cover, and the elastic scraper is in contact with the upper end of the water-blocking plate.

[0019] As a preferred technical solution of the present invention, a water storage shell is provided on the outside of the protective cover, and the water storage shell is connected to the water outlet. A spiral guide plate is provided on the outside of the protective cover, and a plurality of cofferdam plates are provided at the top through hole of the protective cover. The cofferdam plates are combined to form a polygonal guide channel. A connecting head for installing a keycap is detachably provided at the top of the driving member, and a guide plate matching the guide channel is provided at one end of the connecting head.

[0020] As a preferred technical solution of the present invention, the shell includes a second shell and a first shell that are snap-connected to each other, a plurality of plug blocks are arranged at the bottom of the second shell, the plug blocks are snap-fitted with slots opened in the first shell, a convex ring is arranged on the surface of the plug block, two retaining rings are arranged on the inner wall of the slot, and a limiting space for limiting the convex ring is formed between adjacent retaining rings.

[0021] As a preferred technical solution of the present invention, the key device further includes:

[0022] A positioning plate having a plurality of grooves, wherein the grooves match the shape of the first shell;

[0023] A card block is provided at the bottom end of the first housing, and the card block is engaged with a card slot provided in the positioning plate;

[0024] A shift block is arranged outside the first shell.

[0025] The present invention can drive the driving member to move downward by pressing the keycap, and the driving member cooperates with the driving groove to drive the driven member to rotate, and the driven member drives the wiper member to rotate, so as to scrape the water at the bottom of the protective cover into the water outlet hole, and discharge the water from the protective cover through the water outlet hole. In conjunction with the existing sealing structure, it can further prevent water from entering the shell through the top groove. Only operations in daily work are required to drain the water that has seeped into the keys. The drainage effect is good, and there is no need to deliberately drain the water, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the external three-dimensional structure of the present invention;

[0028] Figure 2 It is a schematic diagram of a partially cutaway three-dimensional structure of a base of the present invention;

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of the bottom shell of the present invention;

[0030] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0031] Figure 5 It is a schematic diagram of the three-dimensional structure of the bottom shell and the upper shell of the present invention;

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of the water-blocking plate, the elastic scraper, the driven member and the driving member of the present invention;

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of the upper end of the base of the present invention;

[0034] Figure 8 It is a schematic diagram of the partial cross-section three-dimensional structure of the protective cover of the present invention;

[0035] Fig. 9 It is a schematic diagram of the three-dimensional structure of the cofferdam plate, the drainage sleeve and the guide plate of the present invention.

[0036] The markings in the figure are: 1. positioning plate; 2. first shell; 3. groove; 4. block; 5. slot; 6. second shell; 7. insert block; 8. slot; 9. convex ring; 10. retaining ring; 11. top groove; 12. connector; 13. shaft core; 14. spring; 15. inclined rod; 16. first contact point; 17. second contact point; 18. trigger ring; 19. shift block; 20. protective cover; 21. support block; 22. water baffle; 23. follower; 24. elastic scraper; 25. water outlet; 26. second protrusion; 27. water storage shell; 28. guide plate; 29. ​​driving member; 30. driving groove; 31. cofferdam plate; 32. guide plate; 33. first protrusion; 34. drainage sleeve; 35. diversion hole. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0038] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] like Figure 1 and 5 As shown, a spring-type key device for a computer keyboard comprises: a shell with a top groove 11 on the top and a shaft core 13 elastically connected thereto; a key cap matched with the shaft core 13; a protective cover 20 for enclosing the top groove 11, the protective cover 20 having a through hole connected to the top groove 11, and a water outlet 25 on the surface of the protective cover 20; a driving member 29 disposed between the key cap and the shaft core 13 and synchronously lifted and displaced with the two, one end of the driving member 29 vertically passing through the through hole and extending to the top groove 11; a water-blocking member for preventing water from entering the shell from the top groove 11; a driven member 23 disposed in the protective cover 20 for converting the vertical movement of the driving member 29 into its own rotational movement; a wiper member disposed around the driven member 23, when in use, by pressing the key cap, the driving member 29 drives the driven member 23, and then drives the wiper member to discharge water out of the protective cover 20 through the water outlet 25;

[0040] The above technical solution can prevent water from entering the shell through the top groove 11 of the shell, and prevent water from contacting the first contact point 16 and the second contact point 17 in the shell. When in use, after water passes through the through hole at the upper end of the protective cover 20, the water will gather at the bottom of the protective cover 20, and the driving member 29 can be driven to move downward by pressing the keycap, and the driving member 29 drives the shaft core 13 to move downward, and the inclined rod 15 on the side of the shaft core 13 is out of contact with the touch ring 18 on the surface of the second contact point 17, and the second contact point 17 is reset under the action of elasticity and contacts the first contact point 16, the circuit is connected, and a signal is transmitted once. At the same time, the driving member 29 drives the follower 23 to rotate, and the follower 23 drives the wiper member to rotate, thereby scraping the water at the bottom of the protective cover 20 into the water outlet 25, and the water is discharged from the protective cover 20 through the water outlet 25, preventing water from entering the shell through the top groove 11. In conjunction with operations in daily work, the water that has penetrated into the key can be removed.

[0041] like Figure 5 and Figure 6 As shown, in this embodiment, the driving member 29 has a spiral driving surface, and the driven member 23 has a driving groove 30 adapted to the spiral driving surface. When the driving member 29 moves vertically relative to the driving groove 30, its spiral driving surface can cooperate with the driving groove 30 to drive the driven member 23 to rotate horizontally, and the protective cover 20 is provided with a limiting structure for preventing the driven member 23 from rising and falling synchronously with the driving member 29;

[0042] The above technical solution can ensure that pressing the keycap can drive the driven member 23 to rotate, and at the same time ensure that the driven member 23 will not rise and fall synchronously with the driving member 29, thereby ensuring the stability of the rotation of the driven member 23.

[0043] like Figure 6 As shown, in this embodiment, the wiper is at least one elastic scraper 24 connected to the follower 23, preferably three elastic scrapers 24, and the elastic scrapers 24 are arranged in a ring array about the follower 23. The protective cover 20 is provided with a protrusion that matches the elastic scraper 24. The protrusion is used to deform the elastic scraper 24 when the elastic scraper 24 scrapes water, so that the elastic scraper 24 has elastic potential energy to water, so that water is ejected from the protective cover 20 through the water outlet 25;

[0044] The above technical solution can prevent water from adhering to the surface of the wiper element. During the wiping process, water droplets will adhere to the surface of the wiper element and cannot be removed, resulting in some water remaining inside the protective cover 20. Therefore, it is necessary to dewater the wiper element itself. When in use, when the follower 23 rotates, it will drive the elastic scraper blade 24 to rotate synchronously, so that the elastic scraper blade 24 contacts the protrusion in the protective cover 20, causing the elastic scraper blade 24 to produce a certain deformation, thereby generating elastic potential energy. When the elastic scraper blade 24 is out of contact with the protrusion, the elastic potential energy of the elastic scraper blade 24 is released, and the surface of the elastic scraper blade 24 vibrates, thereby ejecting water into the water outlet 25 to prevent water from adhering to the surface of the elastic scraper blade 24.

[0045] like Figure 8 As shown, in this embodiment, the elastic scraper 24 has an initial section and an ending section, one end of the initial section is connected to the follower 23, and the other end of the initial section is connected to the ending section, and a fold portion is formed at the hinge between the initial section and the ending section; the follower 23 has a first turn and a second turn opposite to each other, when the driving member 29 moves downward relative to the follower 23, the follower 23 drives the elastic scraper 24 to rotate along the first turn; when the driving member 29 moves upward relative to the follower 23, the follower 23 drives the elastic scraper 24 to rotate along the second turn;

[0046] The adoption of the above technical solution can facilitate the elastic scraper 24 to gather water in one place during the wiping process, so that small water droplets form larger water droplets, improve the quality of the water droplets, and facilitate their delivery from the water outlet 25. When the follower 23 drives the elastic scraper 24 to rotate, the fold portion between the initial section and the ending section of the elastic scraper 24 will form a depression less than 180 degrees, which is used to gather small water droplets in the depression to form large water droplets. With the ejection of the elastic scraper 24, the water droplets can be ejected from the water outlet 25.

[0047] like Figure 6 and Figure 8 As shown, in this embodiment, the protrusion includes a first protrusion 33 and a second protrusion 26. The first protrusion 33 is located on the active track of the first turning point of the fold portion, and is used to give elastic potential energy to the elastic scraper 24 when the elastic scraper 24 scrapes water. The second protrusion 26 is located on the active track of the second turning point of the fold portion, and is used to give elastic potential energy to the elastic scraper 24 during the resetting process of the elastic scraper 24, so as to remove water attached to both sides of the elastic scraper 24. A limiting structure for preventing the follower 23 from rising and falling synchronously with the driving member 29 is provided in the protective cover 20;

[0048] The adoption of the above technical solution can ensure that the water on both sides of the elastic scraper 24 can be cleared. When the keycap is pressed, the shaft core 13 and the driving member 29 will be driven to move downward synchronously, and the driven member 23 will drive the elastic scraper 24 to rotate along the first direction, so that the fold portion between the initial section and the final section of the elastic scraper 24 contacts the first protrusion 33. As the shaft core 13 continues to be pressed until the maximum depth, the first protrusion 33 will exert an external force on the elastic scraper 24, so that a torsional force is generated between the initial section of the elastic scraper 24 and the driven member 23. When the keycap is released, the spring 14 instantly drives the shaft core 13 to rise and reset, so that the driving member 29 rises relative to the driving groove 30, and then drives the driven member 23 and the elastic scraper 24 to rotate along the second direction, so that the elastic scraper 24 is out of contact with the first protrusion 33, and the initial section of the elastic scraper 24 instantly recovers its shape, thereby removing the The water droplets are ejected, and the water droplets are discharged through the water outlet hole 25 and fall onto the positioning plate 1, preventing the water droplets from contacting the first contact point 16, the second contact point 17 and the circuit board, and during the rotation of the elastic scraper 24 along the second direction, the elastic scraper 24 will also collide with the second protrusion 26, thereby ejecting the water droplets attached to the other side of the elastic scraper 24. Since the second protrusion 26 is a spherical protrusion, the bottom of the elastic scraper 24 will pass over the second protrusion 26 when the elastic scraper 24 rotates, and the second protrusion 26 will deform the elastic scraper 24. When the elastic scraper 24 completely crosses the second protrusion 26, the elastic scraper 24 releases the elastic force and once again ejects the water droplets attached to the surface of the elastic scraper 24, thereby clearing the water droplets. The setting of the limiting structure is to ensure that the follower 23 will not rise and fall synchronously with the driving member 29 due to the larger internal space of the protective cover 20, thereby ensuring that the follower 23 can rotate normally.

[0049] like Figure 5 and Figure 8 As shown, in this embodiment, the water-blocking member is a water-blocking plate 22 arranged in the protective cover 20, and the water-blocking plate 22 is supported and fixed by a support block 21 on the inner wall of the protective cover 20, and the water-blocking plate 22 divides the interior of the protective cover 20 into a water storage chamber and a water-blocking chamber, and the limiting structure includes an upper end of the inner wall of the protective cover 20 and an upper end of the water-blocking plate 22, and a limiting space for the elastic scraper 24 is formed between the upper end of the inner wall of the protective cover 20 and the upper end of the water-blocking plate 22, and the water-blocking plate 22 is provided with a through groove for the movement of the driving member 29, and the driven member 23 is rotatably arranged in the through groove, and a sealing ring is arranged at the gap between the driven member 23 and the through groove, and the first protrusion 33 and the second protrusion 26 are arranged at the top of the inner wall of the protective cover 20, and the elastic scraper 24 is in contact with the upper end of the water-blocking plate 22;

[0050] The adoption of the above technical solution can further improve the waterproof effect of the keyboard. Since the water-blocking plate 22 is provided, water droplets can be blocked to prevent water droplets from entering the second shell 6 through the top groove 11.

[0051] like Figure 3 , Figure 5 and Figure 8 As shown, in this embodiment, a water storage shell 27 is provided on the outside of the protective cover 20, and the water storage shell 27 is connected to the water outlet 25. A spiral guide plate 28 is provided on the outside of the protective cover 20. A plurality of cofferdam plates 31 are provided at the top through hole of the protective cover 20. The cofferdam plates 31 are combined to form a polygonal guide channel. A connector 12 for mounting a key cap is detachably provided on the top of the driving member 29, and a guide plate 32 matching the guide channel is provided at one end of the connector 12.

[0052] The above technical solution can be used to collect water. Due to the presence of the keycaps, after the keyboard encounters water, very little water enters the second shell 6 through the top groove 11. Therefore, a water storage shell 27 is arranged outside the protective cover 20 to collect the discharged water. As time goes by and the keyboard generates heat during use, this part of water can evaporate. The guide plate 28 can guide the water droplets to the bottom of the water storage shell 27 to facilitate the collection of water droplets. The cofferdam plate 31 can cooperate with the guide plate 32 to guide the movement of the shaft core 13 and the driving member 29 to prevent the two from rotating. The top of the driving member 29 and the connecting head 12 are detachable to facilitate the insertion of the driven member 23 into the driving member 29. Therefore, the connection method can adopt a common detachable structure, such as a snap-on structure.

[0053] like Figure 5 and Fig. 9 As shown, in this embodiment, a drainage sleeve 34 is provided at the bottom of the guide plate 32, and a drainage space for guiding the flow of water droplets is formed between the drainage sleeve 34 and the cofferdam plate 31, and a drainage hole 35 is opened at the bottom of the drainage sleeve 34;

[0054] The above technical solution can ensure that water droplets will not enter the driving groove 30 of the follower 23. Since the driving groove 30 of the follower 23 is arranged at the bottom of the cofferdam plate 31, in order to prevent water droplets from falling directly into the driving groove 30 and directly entering the top groove 11, it is necessary to guide the water droplets. After the water droplets enter the cofferdam plate 31, the water droplets enter the guide space between the drainage sleeve 34 and the cofferdam plate 31, so that the water droplets adhere to the cofferdam plate 31. The cofferdam plate 31 is far away from the driving groove 30, so it can prevent the water droplets from falling into the driving groove 30. The water droplets finally fall onto the water barrier 22 through the guide hole 35 for subsequent cleaning.

[0055] like Figure 1 , Figure 3 and Figure 4As shown, in this embodiment, the housing includes a second housing 6 and a first housing 2 that are engaged with each other, a plurality of plug blocks 7 are provided at the bottom of the second housing 6, the plug blocks 7 are engaged with slots 8 provided in the first housing 2, a convex ring 9 is provided on the surface of the plug block 7, two retaining rings 10 are provided on the inner wall of the slot 8, and a limiting space for limiting the convex ring 9 is formed between adjacent retaining rings 10;

[0056] The above technical solution can be used to facilitate the disassembly of the second shell 6 and the first shell 2, so as to perform maintenance on the inside of the second shell 6 and the first shell 2. When disassembly is required, the second shell 6 is held firmly and an external force away from the first shell 2 is applied to it until the plug 7 is disengaged from the slot 8, thereby completing the disassembly. The retaining ring 10 and the limiting convex ring 9 are made of rubber material, which can prevent the second shell 6 and the first shell 2 from loosening after being fixed.

[0057] like Figure 2 and Figure 7 As shown, in this embodiment, the key device further includes: a positioning plate 1 with a plurality of grooves 3, the grooves 3 are in conformity with the first housing 2; a card block 4 provided at the bottom end of the first housing 2, the card block 4 is engaged with the card slot 5 provided in the positioning plate 1; a shift block 19 provided outside the first housing 2;

[0058] The above technical solution can be used to conveniently disassemble the second shell 6 from the positioning plate 1. By pushing the shift block 19, the block 4 at the bottom of the second shell 6 can be driven to rise, so that the block 4 is disengaged from the slot 5 in the positioning plate 1, thereby completing the disassembly.

[0059] Working principle: When in use, after water enters the through hole at the upper end of the protective cover 20 through the cofferdam plate 31, the water droplets continue to penetrate downward along the gap between the cofferdam plate 31 and the guide plate 32, and the water droplets enter the diversion space between the drainage sleeve 34 and the cofferdam plate 31, so that the water droplets adhere to the cofferdam plate 31, and the water droplets eventually fall onto the water-blocking plate 22 through the diversion hole 35. By pressing the keycap, the driving member 29 can be driven to move downward, and the driving member 29 drives the shaft core 13 to move downward, and the inclined rod 15 on the side of the shaft core 13 is out of contact with the touch ring 18 on the surface of the second contact point 17. The second contact point 17 is reset under the action of elasticity and contacts the first contact point 16, and the circuit is connected, transmitting a signal once;

[0060] When the driving member 29 moves downward, it cooperates with the driving groove 30 to drive the driven member 23 to rotate, and the driven member 23 drives the elastic scraper 24 to rotate along the first direction, so that the fold portion between the initial section and the final section of the elastic scraper 24 contacts the first protrusion 33. As the shaft core 13 continues to be pressed to the maximum depth, the first protrusion 33 applies an external force to the elastic scraper 24, so that a torsion force is generated between the initial section of the elastic scraper 24 and the driven member 23. When the keycap is released, the spring 14 instantly drives the shaft core 13 to rise and reset, so that the driving member 29 rises relative to the driving groove 30, and then brings The movable follower 23 and the elastic scraper 24 rotate along the second direction, so that the elastic scraper 24 is out of contact with the first protrusion 33, and the initial section of the elastic scraper 24 instantly recovers its shape, so that the water droplets attached to the surface of the elastic scraper 24 are ejected, and the water droplets are discharged into the water storage shell 27 through the water outlet 25, and the discharged water can be collected. As time goes by and the keyboard heats up during use, this part of water can be evaporated, and the guide plate 28 can guide the water droplets to the bottom of the water storage shell 27, so as to facilitate the collection of water droplets and prevent the water droplets from contacting the first contact point 16, the second contact point 17 and the circuit board;

[0061] And when the elastic scraper blade 24 rotates along the second direction, the elastic scraper blade 24 will also collide with the second protrusion 26, thereby ejecting the water droplets attached to the other side of the elastic scraper blade 24. Since the second protrusion 26 is a spherical protrusion, the bottom of the elastic scraper blade 24 will pass over the second protrusion 26 when the elastic scraper blade 24 rotates. At the same time, the second protrusion 26 will deform the elastic scraper blade 24. When the elastic scraper blade 24 completely crosses the second protrusion 26, the elastic scraper blade 24 releases the elastic force and once again ejects the water droplets attached to the surface of the elastic scraper blade 24, thereby clearing the water droplets.

[0062] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0063] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A spring-type key device for a computer keyboard, comprising: A housing having a top groove (11) formed on the top and an axle core (13) elastically connected thereto; A key cap matching the shaft core (13); Characterized in that the device also includes: A protective cover (20) for enclosing the top groove (11), the protective cover (20) being provided with a through hole communicating with the top groove (11), and a water outlet hole (25) being provided on a surface of the protective cover (20); A driving member (29) disposed between the key cap and the shaft core (13) and synchronously lifted and lowered with the key cap and the shaft core (13), wherein one end of the driving member (29) vertically penetrates the through hole and extends toward the top groove (11); A water barrier for preventing water from entering the housing from the top groove (11); A driven member (23) disposed in the protective cover (20) and used for converting the vertical movement of the driving member (29) into its own rotational movement; The wiper member is arranged around the driven member (23). When in use, by pressing the key cap, the driving member (29) drives the driven member (23), thereby driving the wiper member to discharge water out of the protective cover (20) through the water outlet hole (25).

2. The spring-type key device for a computer keyboard according to claim 1, characterized in that: The driving member (29) has a spiral driving surface, and the driven member (23) has a driving groove (30) adapted to the spiral driving surface. When the driving member (29) moves vertically relative to the driving groove (30), the spiral driving surface can cooperate with the driving groove (30) to drive the driven member (23) to rotate horizontally. The protective cover (20) is provided with a limiting structure for preventing the driven member (23) from being synchronously raised and lowered with the driving member (29).

3. The spring-type key device for a computer keyboard according to claim 2, characterized in that: The wiper member is at least one elastic scraper blade (24) connected to the follower member (23); the protective cover (20) is provided with a protrusion that cooperates with the elastic scraper blade (24); the protrusion is used to deform the elastic scraper blade (24) when the elastic scraper blade (24) is scraping water, so that the elastic scraper blade (24) has elastic potential energy for water, thereby ejecting water from the protective cover (20) through the water outlet hole (25).

4. The spring-type key device for a computer keyboard according to claim 3, characterized in that: The elastic scraper (24) comprises an initial section and an end section, one end of the initial section is connected to the follower (23), the other end of the initial section is connected to the end section, and a fold portion is formed at a hinge between the initial section and the end section.

5. The spring-type key device for a computer keyboard according to claim 4, characterized in that: The driven member (23) has a first rotation direction and a second rotation direction which are opposite to each other. When the driving member (29) moves downward relative to the driven member (23), the driven member (23) drives the elastic scraper (24) to rotate along the first rotation direction; when the driving member (29) moves upward relative to the driven member (23), the driven member (23) drives the elastic scraper (24) to rotate along the second rotation direction.

6. The spring-type key device for a computer keyboard according to claim 5, characterized in that: The protrusions comprise a first protrusion (33) and a second protrusion (26); the first protrusion (33) is located on an active track of a first turn of the fold portion, and is used to impart elastic potential energy to the elastic scraper blade (24) when the elastic scraper blade (24) is scraping water; the second protrusion (26) is located on an active track of a second turn of the fold portion, and is used to impart elastic potential energy to the elastic scraper blade (24) during the resetting process, thereby removing water adhering to both surfaces of the elastic scraper blade (24).

7. The spring-type key device for a computer keyboard according to claim 6, characterized in that: The water-blocking member is a water-blocking plate (22) arranged in the protective cover (20), and the water-blocking plate (22) divides the interior of the protective cover (20) into a water storage chamber and a water-blocking chamber. The limiting structure includes the upper end of the inner wall of the protective cover (20) and the upper end of the water-blocking plate (22). A limiting space for the elastic scraper (24) is formed between the upper end of the inner wall of the protective cover (20) and the upper end of the water-blocking plate (22). The water-blocking plate (22) is provided with a through groove for the movement of the driving member (29), and the driven member (23) is rotatably arranged in the through groove. A sealing ring is arranged at the gap between the driven member (23) and the through groove. The first protrusion (33) and the second protrusion (26) are arranged at the top of the inner wall of the protective cover (20), and the elastic scraper (24) is in contact with the upper end of the water-blocking plate (22).

8. The spring-type key device for a computer keyboard according to claim 6 or 7, characterized in that: A water storage shell (27) is arranged outside the protective cover (20), and the water storage shell (27) is connected to the water outlet hole (25). A spiral guide plate (28) is arranged outside the protective cover (20). A plurality of cofferdam plates (31) are arranged at the through hole at the top end of the protective cover (20), and the cofferdam plates (31) are combined to form a polygonal guide channel. A connector (12) for mounting a key cap is detachably arranged at the top end of the driving member (29), and a guide plate (32) matching the guide channel is arranged at one end of the connector (12).

9. The spring-type key device for a computer keyboard according to claim 8, characterized in that: The housing comprises a second housing (6) and a first housing (2) which are connected to each other by snapping, a plurality of insert blocks (7) are arranged at the bottom of the second housing (6), the insert blocks (7) are snap-fitted with slots (8) provided in the first housing (2), a convex ring (9) is arranged on the surface of the insert block (7), two retaining rings (10) are arranged on the inner wall of the slot (8), and a limiting space for limiting the convex ring (9) is formed between adjacent retaining rings (10).

10. The spring-type key device for a computer keyboard according to claim 9, characterized in that: The button device also includes: A positioning plate (1) having a plurality of grooves (3), wherein the grooves (3) match the shape of the first shell (2); A clamping block (4) provided at the bottom end of the first housing (2), the clamping block (4) being engaged with a clamping slot (5) provided in the positioning plate (1); A shift block (19) is arranged outside the first shell (2).

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