CN219575446U - Press stable key switch - Google Patents
Press stable key switch Download PDFInfo
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- CN219575446U CN219575446U CN202320193455.4U CN202320193455U CN219575446U CN 219575446 U CN219575446 U CN 219575446U CN 202320193455 U CN202320193455 U CN 202320193455U CN 219575446 U CN219575446 U CN 219575446U
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- guide core
- upper guide
- base
- pressing
- core
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Abstract
The utility model discloses a key switch with stable pressing, which comprises a base, an upper guide core arranged on the base, a lower guide core arranged between the upper guide core and the base and movably connected with the upper guide core, and a reset elastic piece arranged between the upper guide core and the lower guide core. The key switch with stable pressing can perform stable and accurate pressing operation, is favorable for accurate on and off of the key switch, has small pressing friction, small obstruction, space feeling and lighter hand feeling. Meanwhile, the assembly is facilitated, and the assembly is more convenient and quick.
Description
Technical Field
The present disclosure relates to a push-button switch, and particularly to a push-button switch with stable pressing.
Background
Currently, key switches on the market have the following 4 disadvantages:
(1) The guide core is unreasonable in structural design, is easy to skew in the pressing process, is inaccurate in action and poor in stability, and influences the on-off accuracy of the key switch;
(2) The installation of the pressing reset spring is unreasonable, the reset spring is easy to shift and deviate, accurate elastic reset force cannot be provided for the pressing process, and the on-off accuracy of the key switch is affected;
(3) When the guide core applies acting force to the moving plate in the conduction assembly, the stress is unbalanced, skew is easy to occur, and the accuracy of the conduction and disconnection of the key switch is affected;
(4) Has no obvious hand feeling and poor effect.
Disclosure of Invention
Aiming at the defects, the utility model aims to provide the key switch with stable pressing, which can perform stable and accurate pressing operation, is favorable for accurate on and off of the key switch, has small pressing friction, small obstruction, space feeling and lighter hand feeling. Meanwhile, the assembly is facilitated, and the assembly is more convenient and quick.
The technical scheme adopted by the utility model for achieving the purpose is as follows:
the key switch comprises a base and an upper guide core arranged on the base, and is characterized by further comprising a lower guide core arranged between the upper guide core and the base and movably connected with the upper guide core, and a reset elastic piece arranged between the upper guide core and the lower guide core.
As a further improvement of the utility model, the lower guide core comprises a lower base body arranged on the base and a lower guide post arranged on the lower base body.
As a further improvement of the utility model, a central slot which is opened upwards is formed on the lower guide post, and an upper guide post which is movably inserted into the central slot is extended downwards at the lower part of the upper guide core; the reset elastic piece is a reset spring, the upper part of the reset spring is sleeved on the periphery of the upper guide post, and the lower part of the reset spring is sleeved on the periphery of the lower guide post.
As a further improvement of the utility model, a lower annular limiting groove positioned at the periphery of the lower guide post is formed on the lower seat body, and the lower end of the return spring is embedded into the lower annular limiting groove; an upper annular limiting groove is formed in the periphery of the top of the upper guide post, and the upper end of the reset spring is embedded into the upper annular limiting groove.
As a further improvement of the utility model, at least one longitudinal guide hole communicated with the central slot is formed on the side wall of the lower guide post, and at least one guide block moving in the longitudinal guide hole is formed on the side wall of the upper guide post.
As a further improvement of the utility model, a limit groove for embedding the lower seat body is formed at the inner bottom of the base.
As a further improvement of the utility model, a conducting component is arranged on the base and comprises a static plate and a moving plate which are respectively arranged on the base, a static contact is arranged on the static plate, a moving contact corresponding to the static contact is arranged on the moving plate, at least one pressing lug is arranged on the side edge of the upper conducting core, and at least one action bulge corresponding to the pressing lug is formed on the side edge of the moving plate close to the pressing lug.
As a further improvement of the utility model, the upper end of the movable plate is bent towards one side of the upper guide core and extends downwards to form an action elastic sheet, two sides of the action elastic sheet are respectively bent towards one side of the pressing convex block to form the action convex blocks, and the pressing convex blocks and the action convex blocks are arranged in a one-to-one opposite way; the static piece is positioned between the upper guide core and the action elastic piece, and the movable contact is formed on the side surface of the action elastic piece, which is close to the moving piece.
The beneficial effects of the utility model are as follows:
(1) Through addding with last core swing joint's lower guide core, press from top to bottom by lower guide core for last guide core and provide the guide effect, at the whole in-process of pressing, go up the guide core and can stabilize and accurate pressing operation, do benefit to key switch's accurate switch-on and disconnection, and press friction little, hinder little, have the sense of space, feel lighter. Meanwhile, the assembly is facilitated, and the assembly is more convenient and quick.
(2) Through locating reset spring cover on guide pillar and lower guide pillar periphery to limit the upper end in last annular spacing inslot, limit the lower extreme in lower annular spacing inslot, from this, reduce reset spring and take place the possibility of skew, make reset spring follow the upper and lower removal of guide pillar, can be accurate and stable take place elastic deformation, provide accurate and stable elasticity restoring force for pressing process, thereby do benefit to the accuracy that improves key switch and break off, and do benefit to the improvement and press the feel. Meanwhile, the assembly is facilitated, and the assembly is more convenient and quick.
(3) Through two protruding settings that correspond with two effect protrusions on the moving plate of pressing down on the side of the upper guide core, when exerting effort to the moving plate at the upper guide core, the atress is balanced, can effectively avoid pressing down the phenomenon that the process appears crooked, improves stability to do benefit to the accuracy that improves key switch and switch on and off.
(4) Elastic deformation of the elastic sheet occurs in the pressing process due to the action of the movable sheet, so that the whole pressing process produces hand feeling, and the hand feeling effect is good.
The foregoing is a summary of the utility model and is further defined by the following detailed description of the utility model when read in conjunction with the accompanying drawings.
Drawings
FIG. 1 is an exploded view of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
FIG. 3 is a schematic view of the structure of the lower guide core of the present utility model;
FIG. 4 is a schematic view of the structure of the upper guide core in the present utility model;
FIG. 5 is a schematic view of a base structure according to the present utility model;
FIG. 6 is a schematic view of a lower guide core disposed on a base according to the present utility model;
FIG. 7 is a schematic view of a portion of the structure of the present utility model;
fig. 8 is an exploded view of the combination of the upper conductive core and the conductive member of the present utility model.
Detailed Description
In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description of the specific embodiments of the present utility model is given with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1 and 2, an embodiment of the utility model provides a key switch with stable pressing, which comprises a base 1, an upper guide core 2 disposed on the base 1, a lower guide core 3 disposed between the upper guide core 2 and the base 1 and movably connected to the upper guide core 2, and a reset elastic member 4 disposed between the upper guide core 2 and the lower guide core 3. The key switch with stable pressing in this embodiment further includes a key cap 7 disposed on the base 1, and the upper guide core 2, the lower guide core 3 and the reset elastic member 4 are disposed in a cavity formed by the base 1 and the key cap 7, and an opening penetrating out from the upper end of the upper guide core 2 is formed on the key cap 7, so as to press the upper end of the upper guide core 2. By applying downward acting force to the upper guide core 2, the upper guide core 2 moves downwards along the lower guide core 3, so that the reset elastic piece 4 is compressed, and the reset elastic piece 4 is elastically deformed under compression; when the pressing of the upper guide core 2 is released, the upper guide core 2 moves upwards to reset along the lower guide core 3 under the action of the elastic restoring force of the reset elastic piece 4, so that the upper guide core 2 is stably and accurately pressed.
Through addding with last core 2 swing joint's lower guide core 3, by lower guide core 3 for last core 2 press from top to bottom and provide the guide effect, at the whole in-process of pressing, go up and lead core 2 and can carry out stable and accurate pressing operation, do benefit to key switch's accurate switch-on and disconnection, and press friction is little, the hindrance is little, has the sense of space, and the feel is lighter. Meanwhile, the assembly is facilitated, and the assembly is more convenient and quick.
In this embodiment, as shown in fig. 2 and 3, the lower guide core 3 includes a lower base 31 disposed on the base 1, and a lower guide post 32 disposed on the lower base 31. The lower seat 31 is directly limited on the base 1.
As shown in fig. 3, for the combination of the upper guide core 2 and the lower guide core 3, a central slot 321 is formed on the lower guide post 32 and is opened upwards, and an upper guide post 21 is extended downwards from the lower part of the upper guide core 2 and is movably inserted into the central slot 321; the reset elastic piece 4 is a reset spring 4', the upper part of the reset spring 4' is sleeved on the periphery of the upper guide post 21, and the lower part of the reset spring is sleeved on the periphery of the lower guide post 32.
Meanwhile, in order to movably connect the upper guide core 2 and the lower guide core 3, as shown in fig. 3 and 4, at least one longitudinal guide hole 322 connected to the central slot 321 is formed on the side wall of the lower guide post 32, and at least one guide block 211 moving in the longitudinal guide hole 322 is formed on the side wall of the upper guide post 21. When the upper guide core 2 is pressed downward, the upper guide post 21 moves downward along the central insertion groove 321, and in the process, the guide block 211 moves downward along the longitudinal guide hole 322 until the upper guide post 21 moves downward to the bottom inside the central insertion groove 321 or the guide block 211 moves downward to the bottom inside the longitudinal guide hole 322, and at the same time, the return spring 4' is pressed to be elastically deformed. Conversely, when the pressing of the upper guide core 2 is released, the upper guide core 2 moves upward under the elastic restoring force of the restoring spring 4', the upper guide post 21 moves upward along the center insertion groove 321, and in the process, the guide block 211 moves upward along the longitudinal guide hole 322 until the guide block 211 moves upward to the inside top of the longitudinal guide hole 322. Therefore, the central slot 321, the longitudinal guide hole 322 and the guide block 211 are matched to provide a guide effect for the up-and-down movement of the upper guide core 2, so that the up-and-down movement stability of the upper guide core 2 is further improved, the pressing friction is small, the obstruction is small, the space feeling is realized, and the hand feeling is lighter.
In order to prevent the return spring 4 'from being offset and ensure that the return spring can be accurately deformed, as shown in fig. 2, a lower annular limiting groove 312 positioned at the periphery of the lower guide post 32 is formed on the lower seat 31, and the lower end of the return spring 4' is embedded into the lower annular limiting groove 312. Meanwhile, an upper annular limiting groove 210 is formed at the top periphery of the upper guide post 21, and the upper end of the return spring 4' is embedded into the upper annular limiting groove 210. Through locating reset spring 4' cover on guide pillar 21 and lower guide pillar 32 periphery to limit the upper end in last annular spacing groove 210, limit the lower extreme in lower annular spacing groove 312, from this, reduce reset spring 4' and take place the possibility of skew for reset spring 4' is along with the upper guide pillar 21 reciprocates, can accurate and stable emergence elastic deformation, provides accurate and stable elasticity restoring force for pressing the process, thereby does benefit to the accuracy that improves key switch and disconnection, and does benefit to the improvement and presses the feel. Meanwhile, the assembly is facilitated, and the assembly is more convenient and quick.
As shown in fig. 5 and 6, a limiting groove 11 into which the lower seat 31 is inserted is formed in the bottom of the base 1. The setting of spacing groove 11 can guarantee that lower pedestal 31 can not take place to shift when last guide core 2 reciprocates along lower guide core 3, does benefit to the improvement and presses stability.
In this embodiment, as shown in fig. 1, 7 and 8, a conducting component 6 is disposed on the base 1, the conducting component 6 includes a stationary plate 61 and a moving plate 62 respectively disposed on the base 1, a stationary contact 611 is disposed on the stationary plate 61, a moving contact 621 corresponding to the stationary contact 611 is disposed on the moving plate 62, at least one pressing bump 22 is disposed on a side of the upper conductive core 2, and at least one acting protrusion 622 corresponding to the pressing bump 22 is formed on a side of the moving plate 62 close to the pressing bump 22. Specifically, the upper end of the moving plate 62 is bent towards the side of the upper guide core 2 and extends downward to form an acting elastic sheet 620, two sides of the acting elastic sheet 620 are respectively bent towards one side of the pressing projection 22 to form the acting projection 622, specifically, the number of the pressing projection 22 and the acting projection 622 is two, and the pressing projections 22 and the acting projections 622 are arranged in a one-to-one opposite manner; the static plate 61 is located between the upper guide core 2 and the acting spring plate 620, and the movable contact 621 is formed on the side of the acting spring plate 620 close to the moving plate 62.
In the state of being still and not pressed, the two pressing protrusions 22 at the side of the upper guide core 2 push the two acting protrusions 622 outwards, so that the acting elastic sheet 620 deforms and moves in a direction away from the static sheet 61, at this time, the movable contact 621 is separated from the static contact 611, and the conducting assembly 6 is in an off state, i.e. the key switch is in an off state.
When the upper guide core 2 is pressed to move downwards, the two pressing convex blocks 22 move downwards, when the pressing convex blocks 22 move downwards to leave the action convex blocks 622, the acting force applied by the action elastic sheet 620 disappears, the movable contact 621 is driven to rebound and reset under the action of the elastic restoring force of the action elastic sheet 620, the movable contact 621 contacts with the fixed contact 611, and the conduction assembly 6 is in a conduction state, namely, the key switch is in a conduction state.
When the pressing of the upper guide core 2 is released, under the elastic restoring force of the restoring spring 4', the two pressing protrusions 22 move upward along with the upper guide core 2, and after moving upward, the two pressing protrusions 22 act on the acting protrusions 622 again outwards, so that the acting elastic sheet 620 deforms and moves in a direction away from the static sheet 61, at this time, the movable contact 621 is separated from the static contact 611, and the key switch is restored to the off state.
Through two pressing convex blocks 22 on the side edge of the upper guide core 2 and two action convex blocks 622 on the moving plate 62 are correspondingly arranged, when the upper guide core 2 applies acting force to the moving plate 62, the stress is balanced, the phenomenon that the pressing process is askew can be effectively avoided, the stability is improved, and the accuracy of the connection and disconnection of the key switch is improved. At the same time, the elastic deformation of the acting spring 620 occurs, so that the whole pressing process generates a hand feeling.
The foregoing is merely a preferred embodiment of the present utility model, and the technical scope of the present utility model is not limited to the above embodiments, so that other structures using the same or similar technical features as those of the above embodiments of the present utility model are all within the scope of the present utility model.
Claims (5)
1. The key switch with stable pressing comprises a base and an upper guide core arranged on the base, and is characterized by further comprising a lower guide core which is arranged between the upper guide core and the base and is movably connected with the upper guide core, and a reset elastic piece which is arranged between the upper guide core and the lower guide core; the lower guide core comprises a lower seat body arranged on the base and a lower guide post arranged on the lower seat body; a central slot which is opened upwards is formed on the lower guide post, and an upper guide post which is movably inserted into the central slot is extended downwards at the lower part of the upper guide core; the reset elastic piece is a reset spring, the upper part of the reset spring is sleeved on the periphery of the upper guide post, and the lower part of the reset spring is sleeved on the periphery of the lower guide post; at least one longitudinal guide hole communicated with the central slot is formed on the side wall of the lower guide post, and at least one guide block moving in the longitudinal guide hole is formed on the side wall of the upper guide post.
2. The push-button switch of claim 1, wherein a lower annular limit groove is formed on the lower base body and located at the periphery of the lower guide post, and the lower end of the return spring is embedded in the lower annular limit groove; an upper annular limiting groove is formed in the periphery of the top of the upper guide post, and the upper end of the reset spring is embedded into the upper annular limiting groove.
3. The push-button switch of claim 1, wherein a limit groove for the insertion of the lower housing is formed at the bottom of the base.
4. A push-button switch according to any one of claims 1 to 3, wherein a conducting assembly is provided on the base, the conducting assembly comprising a stationary plate and a movable plate respectively provided on the base, a stationary contact is provided on the stationary plate, a movable contact corresponding to the stationary contact is provided on the movable plate, at least one pressing protrusion is provided on a side of the upper guide core, and at least one action protrusion corresponding to the pressing protrusion is formed on a side of the movable plate adjacent to the pressing protrusion.
5. The stable pressing key switch according to claim 4, wherein the upper end of the movable plate is bent towards one side of the upper guide core and extends downwards to form an action spring plate, two sides of the action spring plate are respectively bent towards one side of the pressing lug to form the action lug, and the pressing lugs are arranged opposite to the action lugs one by one; the static piece is positioned between the upper guide core and the action elastic piece, and the movable contact is formed on the side surface of the action elastic piece, which is close to the moving piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320193455.4U CN219575446U (en) | 2023-02-09 | 2023-02-09 | Press stable key switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320193455.4U CN219575446U (en) | 2023-02-09 | 2023-02-09 | Press stable key switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219575446U true CN219575446U (en) | 2023-08-22 |
Family
ID=87662200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320193455.4U Active CN219575446U (en) | 2023-02-09 | 2023-02-09 | Press stable key switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219575446U (en) |
-
2023
- 2023-02-09 CN CN202320193455.4U patent/CN219575446U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |