TWM604065U - One key switch structure capable of lifting and collapsing and components for lifting and collapsing the key switches - Google Patents

Abstract

The new model relates to the technical field of buttons, in particular to a liftable and foldable button, which includes a base, a movable support and a key cap. The base includes a starter plate, a fixed plate and a movable plate sequentially arranged from top to bottom. The movable plate is slidably arranged above the fixed plate, and the movable plate is slidably arranged below the fixed plate; the movable bracket includes a first bracket and a second bracket, one end of the first bracket is hinged with the fixed plate, and the other end of the first bracket is hinged with the keycap; One end of the second bracket is hinged with the moving plate, and the other end of the second bracket is hinged with the keycap; the side of the key lifting plate protruding from the keycap is provided with a lifting block. The new model makes the keyboard thinner by realizing the lifting and closing of the keycaps, so that the keys do not need to shorten the stroke of the keys when in use, so that the keys maintain the original comfort and feedback feeling, and can realize the keyboard Thinner, and reduce the failure rate of the button.

Description

Button capable of lifting and folding and element for lifting the button

The model relates to the technical field of keys, in particular to a key that can be raised and lowered and folded and a lifting key element with the key.

At present, ultra-light and ultra-thin has become the main development direction of current notebook computers, which is mainly reflected in the thinner and thinner notebook computers. In order to reduce the height of the keyboard, many manufacturers switch to keyboards with shorter key strokes instead of long strokes. Keyboard. However, after the key stroke is shortened, the keys are uncomfortable to press, the touch is not good, and the feedback is insufficient. For example: Apple's MacBook Pro uses a keyboard with butterfly feet. Although the key stroke is shortened and the height of the keyboard is reduced, consumers generally report that the keys feel bad. Moreover, because the butterfly feet are too precise, as long as a little dust or hair falls into the keyboard, it will cause serious malfunctions and affect the normal use of the computer. Therefore, the technical solution of reducing the stroke of the keys to achieve the thinning of the keyboard has obvious defects, and an effective solution is urgently needed.

The purpose of the present invention is to provide a key with simple and compact structure, capable of lifting and closing, and stable and reliable lifting. The key adopts the lifting method of the key to reduce the thickness of the keyboard, and the key feedback feels good; , This model also provides a lifting button element.

In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: the present invention provides a liftable and foldable key, which includes a base, a movable bracket and a key cap. The base includes a key plate and a fixed Plate and moving plate, the keying plate is slidably arranged above the fixed plate, the moving plate is slidably arranged below the fixed plate; the movable bracket includes a first bracket and a second bracket, one end of the first bracket Hinged to the fixed plate, the other end of the first bracket is hinged to the keycap; one end of the second bracket is hinged to the moving plate, and the other end of the second bracket is hinged to the keycap; the keying plate is close to the side of the keycap The protruding block is provided.

Wherein, the movable bracket further includes a reset elastic member, one end of the reset elastic member is connected with the end of the first bracket close to the key cap, and the other end of the reset elastic member is connected with the key cap; or two of the reset elastic member The ends are respectively connected with the first bracket and the second bracket.

Wherein, both sides of the first bracket are provided with insert blocks and slots, both sides of the second bracket are provided with insert blocks and slots, the insert blocks of the first bracket and the second bracket The slots cooperate with each other.

Wherein, the key that can be lifted and folded further includes a balance bar, one end of the balance bar is hinged with the fixed plate, and the other end of the balance bar is movably connected with the key cap.

Wherein, the base further includes a switch circuit board arranged below the mobile board, the switch circuit board is provided with a trigger switch, the key cap, the first bracket or the second bracket is provided with a trigger, the trigger The piece is used to trigger the trigger switch.

Wherein, the base further includes an auxiliary board arranged below the moving board, and a reset pop-up piece for popping up the pressed key cap is provided at a position corresponding to the auxiliary board and the key cap.

Wherein, the movable bracket also includes a keycap springer, the keycap springer is arranged between the keycap and the fixed plate, one end of the keycap springer is in contact with the keycap, and the keycap springer The other end conflicts with the fixed plate.

A lifting button element, which includes the above-mentioned liftable and foldable button and a lift drive mechanism for driving the button to lift. The lift drive mechanism includes a sliding block and a first moving rod all slidably arranged on one side of a base And a second moving rod, the first moving rod and the second moving rod are arranged to cross the sliding block; the sliding block is provided with a first oblique line sliding groove and a second oblique line sliding groove, the first moving rod via sliding The sliding block is slidably connected to the sliding block by the sliding member and the first oblique line sliding groove, and the second moving rod is slidingly connected to the sliding block via the sliding cooperation of the sliding element and the second oblique line sliding groove; the first moving rod is away from the sliding block One end is connected with the keying plate, and the end of the second moving rod away from the sliding block is connected with the moving plate.

Wherein, the lifting driving mechanism further includes a first guide element for guiding the movement of the sliding block and a second guide element for guiding the movement of the first and second moving rods.

Further, the lifting driving mechanism further includes a third guide element for guiding the movement of the keying plate and/or the movement of the moving plate.

The beneficial effects of the new model: the key that can be raised and lowered and folded is provided by the new model. By driving the key-up plate and the moving plate to move in the same direction, the movement of the moving plate can pull the second bracket to rotate upward or downward. The second bracket can drive the keycap to rise and fall. At the same time, the lifting of the keycap also drives the rotation of the first bracket. Under the support of the first bracket, the keycap can be raised and lowered smoothly; at the same time, when the keycap is pressed , Under the movable support of the first bracket and the second bracket, it can improve the feedback of the button and improve the comfort of the user's button. Therefore, when the keys are to be used, the driving board and the moving board are driven to move to the right synchronously, and the moving key board will drive the jacking block to move and make the jacking block collide with the key cap, and then lift the key cap; When the key cap is lifted, the moving moving plate drives the second bracket to rotate upward, and the rotating second bracket drives the key cap and the first bracket to rise synchronously, so that the key cap is available for users to use; when the key is not in use, Drive the moving plate to move to the left, and the moving moving plate drives the second bracket to rotate downwards. The rotating second bracket drives the keycap to fall until the keycap is lowered to the folded state, thereby reducing the thickness of the keyboard to make the keyboard Thinning. The embodiment of the present invention makes the keyboard thinner by realizing the lifting and lowering of the keycaps, so that the keys do not need to shorten the stroke of the keys when in use, so that the keys maintain the original comfort and feedback feeling, and can realize the keyboard The thinning, and reduce the failure rate of the button.

1: base

2: Lifting drive mechanism

3: Activity bracket

4: keycap

5: Balance bar

11: Starting board

12: fixed plate

13: mobile board

14: auxiliary board

15: Switch circuit board

111: Jack up block

112: Slope

141: Reset pop-up

151: switch contact

21: Sliding block

22: The first moving rod

23: second moving rod

211: The first diagonal chute

212: second diagonal chute

213: Pull Block

241: The first guide bearing

242: Second guide bearing

243: Third guide bearing

244: Sliding lug

31: The first bracket

32: second bracket

33: reset elastic

311: Insert Block

312: Slot

321: bump

41: Bevel

42: card hook

43: snap buckle

44: Avoid Chute

45: keycap pop-up

Figure 1 is a schematic diagram of the structure of a new type of lifting button element. In the figure, a is a schematic diagram when the button is in use, and b is a schematic diagram when the button is in a folded state;

Figure 2 is a schematic diagram of the structure of the new lifting button element with the key cap hidden;

Figure 3 is a schematic diagram of the exploded structure of the new base;

Figure 4 is a schematic diagram of the structure of the new keycap, movable bracket and balance bar when assembled;

Figure 5 is a schematic diagram of the structure of the new movable support;

Figure 6 is a schematic diagram of the structure of the new lift drive mechanism when the keys are in use;

Figure 7 is a schematic diagram of the process of the new type of key being pressed, in the figure c is a schematic diagram of the structure before the key cap is pressed, and d is a schematic diagram of the structure after the key cap is pressed;

Figure 8 is a schematic diagram of the structure of the new type of lifting drive mechanism when the keys are in the folded state;

Figure 9 is a schematic diagram of the structure of the new type of keycap in the closed state;

Figure 10 is a schematic diagram of the process when the new keycap is converted from the collapsed state to the in-use state. In the figure, e is the schematic diagram of the structure when the keycap is in the collapsed state, and f in the figure is when the lifting block and the keycap collide. Schematic diagram of the structure, in the figure g is the schematic diagram of the structure when the keycap is raised to the use state;

Figure 11 is a schematic diagram of the structure of the first bracket and the second bracket of the new type;

Figure 12 is a schematic view of another view of the structure of the first bracket and the second bracket of the new type;

Figure 13 is a schematic diagram of the process of another way when the new keycap is converted from the collapsed state to the in-use state. In the figure, h is the schematic diagram of the structure when the keycap is in the collapsed state. In the figure, i is the lifting block and the first A schematic diagram of the structure when the bracket is in conflict, in the figure j is the schematic diagram of the structure when the keycap is raised to the use state;

Figure 14 is a schematic structural diagram of one of the second embodiment of the new lift button element;

Figure 15 is another schematic diagram of the second embodiment of the lift button element of the new type.

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and drawings. The content mentioned in the embodiments is not a limitation of the present invention. The present invention will be described in detail below in conjunction with the drawings.

Example 1

As shown in Figures 1 to 13, the present invention provides a liftable and foldable key, which includes a base 1, a movable bracket 3 and a key cap 4. The base 1 includes a key lifter plate 11 arranged from top to bottom. , The fixed plate 12 and the moving plate 13, the keying plate 11 is slidably arranged above the fixed plate 12, and the moving plate 13 is slidably arranged below the fixed plate 12; the movable bracket 3 includes a first bracket 31 and a first bracket 31 Two brackets 32, one end of the first bracket 31 is hinged to the fixed plate 12, the other end of the first bracket 31 is hinged to the keycap 4; one end of the second bracket 32 is hinged to the moving plate 13, and the second bracket 32 The other end is hinged with the key cap 4; the key lift plate 11 is protrudingly provided with a lifting block 111 on one side close to the key cap 4. Specifically, the lifting block 111 is used to conflict with the keycap 4 and lift the keycap 4; or the lifting block 111 is used to conflict with the first bracket 31 and lift the first bracket 31.

In practical applications, the key plate 11 and the moving plate 13 move in the same direction, and the movement of the moving plate 13 can pull the second bracket 32 to rotate upward or downward, and the rotating second bracket 32 can drive the keycap 4 to achieve At the same time, the lifting of the keycap 4 also drives the rotation of the first bracket 31, and under the support of the first bracket 31, the keycap 4 can be realized Now it rises and falls steadily; at the same time, when the keycap 4 is pressed, under the movable support of the first bracket 31 and the second bracket 32, it can improve the feedback of the button and improve the comfort of the user's button. Therefore, when the keys are to be used, both the driving plate 11 and the moving plate 13 are driven to move to the right. The moving key plate 11 drives the jacking block 111 to move and causes the jacking block 111 to collide with the keycap 4, and then The keycap 4 is lifted up; or, the moving key lifter 11 drives the lifting block 111 to move and causes the lifting block 111 to interfere with the first bracket 31, and then lifts the first bracket 31 to realize the keycap 4 being lifted After the keycap 4 is jacked up, the moving moving plate 13 drives the second bracket 32 to rotate upward, and the rotating second bracket 32 drives the keycap 4 and the first bracket 31 to rise synchronously, so that the keycap 4 is available for the user Use; when the key is not in use, drive the moving plate 13 to move to the left, and the moving moving plate 13 drives the second bracket 32 to rotate downward, and the rotating second bracket 32 drives the keycap 4 down until the keycap 4 drops to The folded state further reduces the thickness of the keyboard to make the keyboard thinner. As shown in Figure 10, when the keycap 4 is in the folded state, the first bracket 31 and the second bracket 32 are on the same horizontal straight line, thereby forming a self-locking force on the keycap 4. In this state, if you only pull The moving plate 13 cannot pull the second bracket 32 up. Therefore, in this embodiment, the lifting plate 11 must be used to drive the lifting block 111 to move, so that the lifting block 111 generates an upward thrust on the keycap 4, The lifting block 111 lifts the keycap 4, and the rising of the keycap 4 drives the second bracket 32 to rotate upward; or, as shown in FIG. 13, drives the lifting block 111 to move, so that the lifting block 111 and the first bracket 31 Conflict, and then generate an upward pushing force on the first bracket 31 to lift the first bracket 31; through the aforementioned two methods, the second bracket 32 and the first bracket 31 are not on the same horizontal line, so as to facilitate the movement of the board. 13 Pull the second bracket 32 to continue to move and rotate the second bracket 32 upward until the keycap 4 rises to the use state. The embodiment of the present invention makes the keyboard thinner by realizing the lifting and lowering of the keycap 4, so that the key does not need to shorten the stroke of the key when in use, so that the key maintains the original comfort and feedback feeling, but also realizes The thinning of the keyboard reduces the failure rate of the keys.

Preferably, the keycap 4 is provided with a slope 41 on one side close to the jacking block 111, and the top of the jacking block 111 is provided with a slope surface 112 that matches the slope 41 of the keycap 4. Through the structural design of the slope sliding, the keycap 4 can be lifted by the lift block 111 easily and labor-saving. Similarly, the lifting block 111 can also collide with the first bracket 31 through the slope surface 112 to lift the first bracket 31 and then lift the keycap 4.

Preferably, as shown in FIG. 2, the shape of the first bracket 31 and the shape of the second bracket 32 are both U-shaped, and the first bracket 31 and the second bracket 32 are arranged crosswise. The open end of the first bracket 31 is hinged to the fixing plate 12, The top rail of the first bracket 31 is rotatably connected to the keycap 4 via the snap buckle 43; the open end of the second bracket 32 is hinged with the moving plate 13, and the top rail of the second bracket 32 is connected to the keycap 4 via the snap buckle. Turn the connection.

In this technical solution, the movable bracket 3 further includes a reset elastic member 33, one end of the reset elastic member 33 is connected to the end of the first bracket 31 close to the key cap 4, and the other end of the reset elastic member 33 is connected to the key cap 4 Connected; or the two ends of the reset elastic member 33 are respectively connected with the first bracket 31 and the second bracket 32. Preferably, the reset elastic member 33 can be an existing spring; in this embodiment, one end of the reset elastic member 33 is connected to one end of the keycap 4 via the hook 42, and the other end of the reset elastic member 33 is connected to The first bracket 31 is connected. Specifically, the snap buckle 43 rotatably connected with the first bracket 31 is provided with an escape chute 44 for sliding the top of the first bracket 31; the escape chute 44 is designed to provide an escape space for the sliding of the first bracket 31 . At the same time, the bottom of the snap buckle 43 is provided with an inclined surface 41 that matches with the inclined surface 112 of the jacking block 111.

In practical applications, after the keycap 4 rises to the highest point, the keycap 4 is in use. As shown in Fig. 7, after the user presses the key cap 4, when the moving plate 13 is in a stationary state, the second bracket 32 only rotates downward, and the key cap 4 descends as the second bracket 32 rotates downward. When the first bracket 31 slides away from the second bracket 32 in the avoiding chute 44 of the snap buckle 43, so that the end of the first bracket 31 close to the keycap 4 moves while making it fall with the keycap 4. The downward rotation occurs, that is, the avoidance chute 44 provides a avoidance space for the downward rotation of the first bracket 31, so that the keycap 4 can be pressed when the moving plate 13 is stationary; the movement of the first bracket 31 enables The reset elastic member 33 is stretched to store elastic potential energy; when the keycap 4 is released and pressed, the reset elastic member 33 releases its stored elastic potential energy and contracts, and the contracted reset elastic member 33 pulls the first bracket 31 to rotate upward, thereby Drive the keycap 4 back to the initial position. The design of this structure is simple and compact, which makes the keycap 4 work stable and reliable, and can further improve the feedback feeling of the keycap 4.

In the embodiment of the present invention, as shown in Figure c in Figure 7, when the keycap 4 is in the process of descending and closing, the moving plate 13 drives the bottom of the second bracket 32 to move to the left and causes the second bracket 32 to move. Rotating downwards, the second bracket 32 that rotates downward drives the keycap 4 to descend; when the keycap 4 is lowered, the first bracket 31 is under the action of the reset elastic member 33, so that one end of the first bracket 31 is always The upper end of the first bracket 33 and the upper end of the second bracket 32 remain the same. At the same time, when the first bracket 32 pulls the keycap 4 down, the first bracket 31 does not Occurs, that is, the reset elastic member 33 will not be stretched, so that the reset elastic member 33 will not affect the first bracket 31 The pulling force is generated, and thus, the keycap 4 can be free from large resistance during the ascending or descending process, so that the keycap 4 can be lifted and folded easily and effortlessly.

In this technical solution, both sides of the first bracket 31 are provided with insert blocks 311 and slots 312, and both sides of the second bracket 32 are provided with insert blocks 311 and slots 312. The insert block 311 of the bracket 31 and the slot 312 of the second bracket 32 cooperate with each other. Specifically, as shown in FIGS. 11 and 12, the inserting block 311 and the slot 312 are respectively disposed on the inner side walls of the two side bars of the U-shaped first bracket 31 and are respectively disposed on the U-shaped second bracket 32. On the outer side wall of the two side bars. The inserting block 311 of the first bracket 31 and the slot 312 of the second bracket 32 are arranged correspondingly. The slot 312 has a horn shape.

In practical applications, the first bracket 31 and the second bracket 32 are arranged crosswise, so that the insert block 311 of the first bracket 31 is inserted into the slot 312 of the second bracket 32, and at the same time, the insert block 311 of the second bracket 32 It is also inserted into the slot 312 of the first bracket 31. When the second bracket 32 rotates, the insert block 311 is driven to rotate, and the rotating insert block 311 is in contact with the groove wall of the slot 312 of the first bracket 31 and thereby drives the first bracket 31 to rotate synchronously, so that the first bracket 31 and the first bracket 31 The rotation of the second bracket 32 is more precise, and the stability and accuracy of the lifting of the keycap 4 are improved. The design of the structure is simple and compact, and the operation is stable and reliable.

In this technical solution, the liftable and foldable key further includes a balance bar 5, one end of the balance bar 5 is hinged with the fixed plate 12, and the other end of the balance bar 5 is movably connected with the key cap 4. Specifically, an end of the balance bar 5 close to the keycap 4 is rotationally buckled with the keycap 4 via an open-type buckle. The shape of the balance bar 5 shown is U-shaped. In practical applications, the balance bar 5 rotates upwards or downwards following the lifting of the keycap 4. The rotating balance bar 5 is used to provide balanced support for the keycap 4 to ensure the working stability of the keycap 4 and avoid keycaps. 4 The problem of skewed jamming or poor contact occurs when pressed.

In this technical solution, the base 1 further includes a switch circuit board 15 arranged below the moving board 13, a trigger switch is arranged on the switch circuit board 15, and the key cap 4, the first bracket 31 or the second The second bracket 32 is provided with a trigger, and the trigger is used to trigger a trigger switch. Preferably, the trigger switch can be a membrane switch, an optocoupler switch, a mechanical switch, or a magnetic induction switch. When the trigger switch is a magnetic induction switch, the trigger is a magnet matched with the magnetic induction switch.

In this embodiment, the trigger switch is a membrane switch, a switch contact 151 is provided on the membrane switch, and the trigger is a protrusion 321 provided on the second bracket 32. As shown in FIG. 7, when the keycap 4 is pressed, the keycap 4 drives the second bracket 32 to rotate downward, and the second bracket 32 that rotates downward drives the protrusion 321 to descend until the protrusion 321 drops to the open position. The switch contacts 151 of the switch circuit board 15 collide, so that the switch circuit board 15 sends out a trigger signal to realize the key input function. As shown in Figure 10, when the keycap 4 is lowered and folded, the moving plate 13 is driven to move to the left, and the moving moving plate 13 pulls the bottom of the second bracket 32 to move to the left, so that the top of the second bracket 32 moves toward the left. Rotate downward; the second bracket 32 moving to the left drives the protrusion 321 to move away from the switch contact 151, so that after the second bracket 32 rotates downward, the protrusion 321 of the second bracket 32 does not contact the switch contact 151, This prevents the keycap 4 from touching the switch contact 151 when it is folded.

In this technical solution, the base 1 further includes an auxiliary plate 14 arranged below the moving plate 13, and a position corresponding to the key cap 4 of the auxiliary plate 14 is provided with a reset for popping up the pressed key cap 4弹起件141. Preferably, the reset spring 141 may be an elastic sheet or a spring; the shape of the elastic sheet may be a sheet or other shapes.

In practical applications, when the keycap 4 is pressed, the lower part of the second bracket 32 close to the keycap 4 collides with the reset popup 141 and presses down the reset popup 141, and the keycap 4 is released and pressed After that, the reset pop-up member 141 pops the second bracket 32 upwards, so that the first bracket 31 and the second bracket 32 are canceled at the same level and straight line, so that the first bracket 31 and the second bracket 32 can be The pulling force of the reset elastic member 33 rotates close to each other until the keycap 4 is raised. Or, after the keycap 4 is pressed, the bottom surface of the keycap 4 collides with the reset elastic member 141 and presses the reset pop-up member 141. After the keycap 4 is released and pressed, the reset pop-up member 141 will press the keycap 4 Bounce directly.

Example 2

The difference between this embodiment and the first embodiment is: referring to Figures 14 and 15, the movable bracket 3 also includes a keycap pop-up member 45, which is arranged on the keycap 4 and the fixed plate 12. In between, one end of the keycap elastic member 45 is in contact with the keycap 4, and the other end of the keycap elastic member 45 is in contact with the fixing plate 12. Specifically, the keycap elastic member 45 may be installed on the fixed plate 12 or the keycap 4; the keycap elastic member 45 is a spring. In practical applications, when the keycap 4 is pressed, the keycap 4 presses down the keycap pop-up member 45, so that the keycap pop-up member 45 stores elastic potential energy; after the keycap 4 is released and pressed, the keycap pops up The member 45 bounces the second bracket 32 upward, so that the first bracket 31 and the second bracket 32 are canceled at the same level and straight line, so that the first bracket 31 and the second bracket 32 can reset the elastic member 33 Rotate close to each other under pulling force until the keycap 4 is raised.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment adopt the explanation of the first embodiment, and will not be repeated here.

The present invention also provides a lifting key element, which includes the aforementioned liftable and foldable key and a lifting driving mechanism 2 for driving the lifting of the key. The lifting driving mechanism 2 includes both slidably arranged on one side of the base 1 The sliding block 21, the first moving rod 22 and the second moving rod 23, the first moving rod 22 and the second moving rod 23 are intersected with the sliding block 21; the sliding block 21 is provided with a first diagonal chute 211 and the second oblique line sliding groove 212, the first moving rod 22 is slidably connected to the sliding block 21 through a sliding member and the first oblique line sliding groove 211, and the second moving rod 23 is slidably connected to the sliding block 21 through the sliding element and the second oblique line The sliding groove 212 is slidably connected to the sliding block 21; the end of the first moving rod 22 away from the sliding block 21 is connected to the keying plate 11, and the end of the second moving rod 23 away from the sliding block 21 is connected to the moving plate 13 connection.

In practical applications, the keys and the lifting drive mechanism 2 are both installed on the keyboard; as shown in Figures 6 and 8, when the keyboard uses the keys, the sliding block 21 is pulled to move to the left, and the sliding block 21 that moves to the left drives The first oblique line groove and the second oblique line groove move synchronously, and the moving first oblique line groove and the second oblique line groove drive the first moving rod 22 and the second moving rod 23 to move away from the fixed plate 12 under the action of the sliding member. At this time, the movement of the first moving rod 22 pulls the key lifter 11 to move, and the moving key lifter 11 drives the lift block 111 to collide with the keycap 4, or the lift block 111 collides with the first bracket 31, thereby turning the key The cap 4 is pushed up; the movement of the second moving rod 23 pulls the moving plate 13 to move, and the moving moving plate 13 drives the bottom end of the second bracket 32 to move, so that the second bracket 32 rotates upward, and the second bracket 32 that rotates upward Drive the keycap 4 up to the use state; on the contrary, when the keyboard receives the keys, pull the sliding block 21 to move to the right, and then drive the first moving rod 22 and the second moving rod 23 to move in the direction close to the fixed plate 12 at the same time. The moving plate 13 drives the second bracket 32 to rotate downward, and the second bracket 32 that rotates downward drives the keycap 4 to descend to the folded state. The lifting driving mechanism 2 has a simple and compact structure design, simple and quick operation, and easy and labor-saving.

Preferably, the sliding block 21 is provided with a pulling block 213 for pulling by the user. In practical applications, the user can pull the pulling block 213 to drive the sliding block 21 to slide. In addition, the sliding block 21 can also be driven by other mechanical linkage mechanisms such as wire pulling, or driven by a motor drive mechanism.

In this technical solution, the lifting drive mechanism 2 further includes a first guide element for guiding the movement of the sliding block 21 and a first guide element for guiding the movement of the first moving rod 22 and the second moving rod 23. Two guide element.

Preferably, the first guide element and the second guide element may both be bearing elements, guide blocks installed on both sides of the sliding block 21, or slide rails slidingly matched with the sliding block 21; the slide rails may be drawers. Commonly used slide rail parts.

In this embodiment, the first guide element is a plurality of first guide bearings 241, the second guide element is a plurality of second guide bearings 242, and the plurality of first guide bearings 241 are respectively along the sliding block The two sides of the moving direction of 21 are arranged and are in sliding contact with the side of the sliding block 21; the plurality of second guide bearings 242 are respectively arranged along the two sides of the moving direction of the first moving rod 22 and are connected to the first moving rod 22. The side sliding and resisting sides of the second moving rod 23 are respectively disposed along the two sides of the moving direction of the second moving rod 23 and sliding against the side of the second moving rod 23. A plurality of the first guide bearings 241 are located on both sides of the sliding block 21 and arranged in a straight line, thereby forming a track for the sliding block 21 to slide. Under the action of the first guide bearing 241, the sliding block 21 It can slide more stably and smoothly; similarly, the function of the plurality of second guide bearings 242 is the same as that of the first guide bearing 241 to ensure that both the first moving rod 22 and the second moving rod 23 can Move steadily and smoothly.

In this technical solution, the lifting drive mechanism further includes a third guide element for guiding the movement of the keying plate and/or the movement of the moving plate. Preferably, the third guide element may be a bearing element, a guide block or a sliding rail.

In this embodiment, the third guide element includes a plurality of third guide bearings 243, and the plurality of third guide bearings 243 are respectively arranged on both sides of the keying plate 11 and the moving plate 13. Both sides of the keying plate 11 and the moving plate 13 are protrudingly provided with sliding lugs 244 that slide against the third guide bearing 243. In practical applications, the functions of the plurality of second guide bearings 242 are the same as those of the first guide bearings 241 to ensure the stability and accuracy of the movement of the key plate 11 and the moving plate 13, and further improve the key Stability of cap 4 lifting.

The above are only the preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention is disclosed as above in the preferred embodiments, it is not intended to limit the present invention. Anyone familiar with the profession , Without departing from the scope of the new technical solution, when using the technical content disclosed above to make some changes or modification into equivalent embodiments with equivalent changes, provided that the content of the new technical solution does not deviate from the content of the new technical solution, it means the above Any simple modifications, equivalent changes, and modifications made in the embodiments fall within the scope of the new technical solution.

1: base

2: Lifting drive mechanism

4: keycap

Claims (10)

A liftable and foldable key, which is characterized in that it comprises a base, a movable support and a key cap. The base includes a lifting plate, a fixed plate and a moving plate arranged in sequence from top to bottom, and the lifting plate is slidably arranged on Above the fixed plate, the movable plate is slidably arranged below the fixed plate; the movable support includes a first support and a second support, one end of the first support is hinged with the fixed plate, and the other end of the first support is connected to the key The cap is hinged; one end of the second bracket is hinged with the moving plate, and the other end of the second bracket is hinged with the keycap; the side of the keying plate close to the keycap is convexly provided with a lifting block. The liftable and foldable button according to claim 1, characterized in that: the movable bracket further includes a reset elastic member, one end of the reset elastic member is connected with the end of the first bracket close to the key cap, and the reset elastic member The other end is connected with the key cap: or the two ends of the reset elastic member are respectively connected with the first bracket and the second bracket. The liftable and foldable button according to claim 1, characterized in that: both sides of the first bracket are provided with insert blocks and slots, and both sides of the second bracket are provided with insert blocks and slots. Slot, the insert block of the first bracket and the slot of the second bracket cooperate with each other. The liftable and foldable button according to claim 1, characterized in that: the liftable and foldable button further includes a balance bar, one end of the balance bar is hinged with the fixed plate, and the other end of the balance bar is connected to the key Cap active connection. The liftable and foldable button according to claim 1, characterized in that: the base further includes a switch circuit board arranged below the moving board, the switch circuit board is provided with a trigger switch, the keycap, The first bracket or the second bracket is provided with a trigger, and the trigger is used to trigger a trigger switch. The liftable and foldable button according to claim 1, characterized in that: the base further includes an auxiliary board arranged below the moving board, and a position corresponding to the auxiliary board and the keycap is provided for pressing The reset pop-up piece that the keycap pops up. The liftable and foldable key according to claim 1, characterized in that: the movable bracket further includes a keycap pop-up member, the keycap pop-up member is arranged between the keycap and the fixed plate, and the keycap spring One end of the lifting piece is in contact with the key cap, and the other end of the key cap spring is in contact with the fixing plate. A lifting button element, characterized in that it comprises the liftable and foldable buttons described in any one of Claims 1 to 7 and a lifting driving mechanism for driving the lifting and lowering of the keys, and the lifting driving mechanism includes all slidingly arranged on the base One side of the sliding block, the first moving rod and the second moving rod, the first moving rod and the second moving rod are all arranged to cross the sliding block; the sliding block is provided with a first diagonal sliding groove and a second diagonal sliding Groove, the first moving rod is slidably connected to the sliding block through the sliding fit of the sliding member and the first oblique line sliding groove, and the second moving rod is slidingly connected to the sliding block through the sliding fit of the sliding element and the second oblique line sliding groove; The end of the first moving rod away from the sliding block is connected with the keying plate, and the end of the second moving rod away from the sliding block is connected with the moving plate. The lifting button element according to claim 8, characterized in that: the lifting drive mechanism further includes a first guide element for guiding the movement of the sliding block and a first guide element for guiding the first and second moving rods. Move the second guiding element for guiding. The lifting key element according to claim 8, characterized in that: the lifting driving mechanism further includes a third guide element for guiding the movement of the keying plate and/or the movement of the moving plate.

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