Key mechanism

Abstract

The utility model discloses a button mechanism, which comprises a support frame, a movable opening is arranged on the support frame, a pressing plate is arranged on one side, close to the inside of the support frame, of the movable opening, and a button is arranged on one side, close to the outside of the support frame, of the movable opening; one end of the pressing plate is rotationally connected with the inner wall of the supporting frame, the other end of the pressing plate is matched with the movable opening, and a switch and an elastic piece are further arranged on the side, close to the interior of the supporting frame, of the movable opening; when the key is pressed, the key acts on the pressing plate, the pressing plate presses a switch handle of the switch, and the switch is turned on. Under the reset action of the elastic piece, when the key is loosened, the pressing plate loosens the switch handle of the switch. According to the utility model, the structure design is reasonable, and the switch is switched on or switched off by rotating the pressing plate in the positive and negative directions, so that the pressing plate can be well matched with the key and the switch which are staggered in position.

Description

TECHNICAL FIELD

[0001] The utility model relates to key switch technical field especially relates to a key mechanism. BACKGROUND

[0002] Key switch is the electrical control element that electrical equipment and so on will often use, however, the pressing plate of existing key switch mostly is vertical up and down activity, thereby cannot with the key, switch of staggered position good cooperation. UTILITY MODEL CONTENTS

[0003] The utility model discloses a kind of key mechanisms, to solve the technical problem that the pressing plate of existing key switch mostly is vertical up and down activity, thereby cannot with the key, switch of staggered position good cooperation.

[0004] In order to achieve the above object, the technical scheme of the utility model provides a kind of key mechanism, including support frame, the support frame is equipped with movable opening, the movable opening is equipped with pressing plate near the side of the support frame inside, the movable opening is equipped with key near the side of the support frame outside;The end of the pressing plate is rotatably connected with the inner wall of the support frame, the other end of the pressing plate is matched with the movable opening, the side of the movable opening near the support frame inside is also equipped with switch, elastic piece;When pressing the key, the key force is on the pressing plate, the pressing plate presses the switch handle of the switch, and the switch is turned on;Under the reset action of the elastic piece, when the key is released, the pressing plate is released from the switch handle of the switch.

[0005] Further, one end of the pressing plate is equipped with rotating shaft, the inner wall of the support frame is equipped with shaft sleeve, the rotating shaft is rotatably matched with the shaft sleeve.

[0006] Further, the other end of the pressing plate is equipped with first protruding part, the first protruding part can extend into the movable opening, and the edge of the first protruding part can form abutment with the edge of the movable opening.

[0007] Further, the inner wall of the support frame is also equipped with fixed support, and the switch is installed on the fixed support;The inner wall of the support frame is also equipped with mounting support, and the mounting support is equipped with support groove, and the elastic piece is installed in the support groove.

[0008] Further, the switch and the elastic piece are located at the side of the pressing plate near the support frame inside, the middle part of the pressing plate is connected with the elastic piece, the other end of the pressing plate can press the switch handle of the switch, and the switch handle has elasticity.

[0009] Further, the key is a soft glue key, the edge of the soft glue key is connected with the edge of the support frame, the middle part of the soft glue key is provided with a second protruding part extending into the movable opening, and the second protruding part abuts against the pressing plate in the movable opening.

[0010] Further, the movable opening is provided with a retaining wall around the edge of the side close to the outside of the support frame, the edge of the soft glue key is mounted with the outside of the retaining wall, and the second protruding part extends into the inside of the retaining wall.

[0011] Further, the outside of the support frame is provided with a machine shell pressing the edge of the soft glue key.

[0012] Further, the elastic member is a spring, and the key is a key made of silicone, rubber or TPE material.

[0013] Further, the support frame comprises two sub-support frames which are detachably connected and enclose the movable opening.

[0014] According to the technical scheme of the utility model, the following beneficial effects are achieved: the utility model discloses a reasonable structure, (1) the support frame is provided with a movable opening, the side close to the inside of the support frame is provided with a pressing plate, and the side close to the outside of the support frame is provided with a key; one end of the pressing plate is rotationally connected with the inner wall of the support frame, the other end of the pressing plate is matched with the movable opening, and the side close to the inside of the support frame is further provided with a switch and an elastic member; accordingly, the key, the switch, the elastic member and the pressing plate are respectively installed on the corresponding positions of the support frame, (2) when the key is pressed, the key acts on the pressing plate, the pressing plate presses the switch handle of the switch, and the switch is turned on; under the reset action of the elastic member, the key is released, and the pressing plate releases the switch handle of the switch; accordingly, when the key is pressed, the key acts on the pressing plate, the pressing plate is positively rotated, the switch handle is pressed, the switch is turned on, then under the reset action of the elastic member, the key is released, the pressing plate is reversely rotated, the switch handle is released, and the switch is turned off. According to the above analysis, since the pressing plate is positively and reversely rotated to realize the on or off of the switch, the key, the switch and the pressing plate can be well matched when the positions are staggered. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional structure schematic diagram of the key of the utility model;

[0017] Figure 3 It is a three-dimensional structure schematic diagram of the utility model without the key;

[0018] Figure 4 is the bottom perspective structure schematic view of the utility model without the key;

[0019] Figure 5 is the perspective structure schematic view of the utility model without the key and one side vice support;

[0020] Figure 6 is the perspective structure schematic view of the utility model without one side vice support;

[0021] Reference signs: 1-support frame, 2-pressing plate, 3-key, 4-switch, 5-elastic piece;

[0022] 101-movable opening, 102-shaft sleeve, 103-fixed support, 104-mounting support, 105-supporting groove, 106-retaining wall, 107-vice support; 201-rotating shaft, 202-first protruding part, 301-second protruding part, 401-switch handle. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, but do not constitute the limitation on the protection scope of the utility model.

[0024] In the utility model, in order to describe more clearly, make the following description: the observer faces the attached Figure 1 The upper surface of the observer is set as upper, and the lower surface of the observer is set as lower, it should be indicated that the terms "front end", "rear end", "left side", "right side", "middle part", "upper", "lower" and the like in the text indicate the orientation or positional relationship based on the orientation or positional relationship of the attached drawings, and are only for the convenience of clearly describing the utility model, and are not indicative or suggestive of the structure or parts indicated must have a particular orientation or be constructed in a particular orientation, therefore, it cannot be understood as the limitation on the utility model. In addition, the terms "first", "second", "third", "fourth" are only for the purpose of clarity or simplification of description, and cannot be understood as indicative or suggestive of relative importance or quantity.

[0025] Reference Figures 1 to 6The embodiment provides a key mechanism, which comprises a support frame 1, a movable opening 101 is arranged on the support frame 1, a pressing plate 2 is arranged on the side of the movable opening 101 close to the inside of the support frame 1, and a key 3 is arranged on the side of the movable opening 101 close to the outside of the support frame 1; one end of the pressing plate 2 is rotationally connected with the inner wall of the support frame 1, the other end of the pressing plate 2 is matched with the movable opening 101, and a switch 4 and an elastic element 5 are further arranged on the side of the movable opening 101 close to the inside of the support frame 1; when the key 3 is pressed, the key 3 acts on the pressing plate 2, the pressing plate 2 presses the switch handle 401 of the switch 4, and the switch 4 is turned on; under the reset action of the elastic element 5, when the key 3 is released, the pressing plate 2 is released from the switch handle 401 of the switch 4. Action: (1) the key mechanism comprises the support frame, the movable opening is arranged on the support frame, the pressing plate is arranged on the side of the movable opening close to the inside of the support frame, and the key is arranged on the side of the movable opening close to the outside of the support frame; one end of the pressing plate is rotationally connected with the inner wall of the support frame, the other end of the pressing plate is matched with the movable opening, and the switch and the elastic element are further arranged on the side of the movable opening close to the inside of the support frame; thereby the key, the switch, the elastic element and the pressing plate are respectively installed on the corresponding positions of the support frame. (2) when the key is pressed, the key acts on the pressing plate, the pressing plate presses the switch handle of the switch, the switch is turned on, under the reset action of the elastic element, when the key is released, the pressing plate is released from the switch handle of the switch; thereby when the key is pressed, the key acts on the pressing plate, the pressing plate is positively rotated, the switch handle is pressed, the switch is turned on, then under the reset action of the elastic element, when the key is released, the pressing plate is reversely rotated, the pressing plate is released from the switch handle, and the switch is turned off. It can be known from the above analysis that the pressing plate is positively or reversely rotated to realize the switch turning on or turning off, thereby the key, the switch and the pressing plate can be well matched when the positions are staggered.

[0026] Specifically, one end of the pressing plate 2 is provided with a rotating shaft 201, the inner wall of the support frame 1 is provided with a shaft sleeve 102, and the rotating shaft 201 is rotationally matched with the shaft sleeve 102. Action: in this way, the smooth rotation matching of the support frame 1 and the pressing plate 2 can be more easily realized.

[0027] Specifically, the other end of the pressing plate 2 is provided with a first protruding part 202, the first protruding part 202 can extend into the movable opening 101, and the edge of the first protruding part 202 can abut against the edge of the movable opening 101. Action: the first protruding part 202 can be better matched with the movable opening 101 and the key, and the edge of the movable opening 101 is limited to the rotation range of the pressing plate 2 upwardly by abutting against the edge of the first protruding part 202.

[0028] Specifically, the inner wall of the support frame 1 is further provided with a fixing support 103, and the switch 4 is installed on the fixing support 103; the inner wall of the support frame 1 is further provided with an installation support 104, the installation support 104 is provided with a support groove 105, and the elastic member 5 is installed in the support groove 105. Effect: The fixing support 103 and the installation support 104 can realize the installation of the switch 4 and the elastic member 5.

[0029] Specifically, the switch 4 and the elastic member 5 are located on the side of the pressing plate 2 close to the inside of the support frame 1, the middle part of the pressing plate 2 is connected with the elastic member 5, and the other end of the pressing plate 2 can press the switch handle 401 of the switch 4, and the switch handle 401 has elasticity. Effect: The elastic member 5 cooperates with the middle part of the pressing plate 2 to elastically support the pressing plate 2, while avoiding excessive interference with the operation of the switch.

[0030] Specifically, the key 3 is a soft rubber key, the edge of the soft rubber key is connected with the edge of the support frame 1, the middle part of the soft rubber key is provided with a second protruding part 301 extending into the movable opening 101, and the second protruding part 301 abuts against the pressing plate 2 in the movable opening 101. Effect: Since the edge of the soft rubber key is fixed, and the middle part of the soft rubber key can move, the sealing performance of the whole is improved while realizing the pressing function.

[0031] Specifically, the movable opening 101 is provided with a retaining wall 106 around the edge of the side close to the outside of the support frame 1, the four edges of the soft rubber key are installed in cooperation with the outside of the retaining wall 106, and the second protruding part 301 extends into the inside of the retaining wall 106. Effect: The retaining wall 106 and the movable opening 101 form a movable space suspended in the middle, which is used for the movable cooperation of the second protruding part 301 and the first protruding part 202; at the same time, the retaining wall 106 can also improve the sealing performance and assist the installation of the soft rubber key.

[0032] Specifically, the outside of the support frame 1 is provided with a shell (not shown in the figure), and the shell presses the four edges of the soft rubber key. Effect: The shell is arranged on one hand to fix the four edges of the soft rubber key, and on the other hand to realize the installation of the support frame 1.

[0033] Specifically, the elastic member 5 is a spring, and the key 3 is a key made of silicone, rubber or TPE material. Effect: The spring has good elasticity, and the material such as silicone is more suitable as a soft rubber key.

[0034] Specifically, the support frame 1 includes two sub-supports 107, the two sub-supports 107 are detachably connected, and the two sub-supports 107 enclose the movable opening 101. Effect: The detachable connection makes the support frame 1 convenient to install the switch, the elastic member and other components. As a preferred embodiment, the two sub-supports 107 can be positioned through the limiting cooperation of the limiting ribs and the limiting grooves, and then connected and fixed through screws.

[0035] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, under the premise of can make a number of improvements and refinements, these improvements and refinements also as the protection scope of the present application.

Claims

1. A key mechanism, comprising a support frame (1), characterized in that: The support frame (1) is provided with a movable opening (101), a pressure plate (2) is provided on a side of the movable opening (101) close to the inside of the support frame (1), and a button (3) is provided on a side of the movable opening (101) close to the outside of the support frame (1); one end of the pressure plate (2) is rotatably connected to the inner wall of the support frame (1), and the other end of the pressure plate (2) cooperates with the movable opening (101), and a switch (4) and an elastic member (5) are also provided on a side of the movable opening (101) close to the inside of the support frame (1); when the button (3) is pressed, the button (3) acts on the pressure plate (2), and the pressure plate (2) presses the switch handle (401) of the switch (4), and the switch (4) is turned on; under the resetting action of the elastic member (5), when the button (3) is released, the pressure plate (2) is released from the switch handle (401) of the switch (4).

2. A key mechanism according to claim 1, characterized in that: A rotating shaft (201) is provided at one end of the pressing plate (2), a shaft sleeve (102) is provided on the inner wall of the supporting frame (1), and the rotating shaft (201) and the shaft sleeve (102) are rotatably matched.

3. A key mechanism according to claim 1, characterized in that: The other end of the pressure plate (2) is provided with a first protrusion (202), the first protrusion (202) can extend into the movable opening (101), and the edge of the first protrusion (202) can form abutment with the edge of the movable opening (101).

4. A key mechanism according to claim 1, characterized in that: The inner wall of the support frame (1) is further provided with a fixing bracket (103), and the switch (4) is mounted on the fixing bracket (103); the inner wall of the support frame (1) is further provided with a mounting bracket (104), and the mounting bracket (104) is provided with a supporting groove (105), and the elastic member (5) is mounted in the supporting groove (105).

5. The key mechanism according to claim 1, characterized in that: The switch (4) and the elastic member (5) are located on one side of the pressure plate (2) close to the interior of the support frame (1); the middle portion of the pressure plate (2) is connected to the elastic member (5); the other end of the pressure plate (2) can press the switch handle (401) of the switch (4); and the switch handle (401) is elastic.

6. A key mechanism according to any one of claims 1 to 5, characterized in that: The button (3) is a soft rubber button, the edge of which is connected to the edge of the support frame (1), and a second protrusion (301) extending into the movable opening (101) is provided in the middle of the soft rubber button, and the second protrusion (301) abuts against the pressure plate (2) in the movable opening (101).

7. A key mechanism according to claim 6, characterized in that: The movable opening (101) is provided with a retaining wall (106) on the four edges of a side close to the outside of the support frame (1), the four edges of the soft rubber button are mounted and matched with the outer side of the retaining wall (106), and the second protrusion (301) extends into the inner side of the retaining wall (106).

8. A key mechanism according to claim 7, characterized in that: A casing is provided on the outside of the support frame (1), and the casing presses the edges around the soft rubber button.

9. A key mechanism according to any one of claims 1 to 5, 7 to 8, characterized in that: The elastic member (5) is a spring, and the button (3) is a button made of silica gel, rubber or TPE.

10. A key mechanism according to any one of claims 1 to 5, 7 to 8, characterized in that: The support frame (1) comprises two auxiliary supports (107), the two auxiliary supports (107) are detachably connected, and the two auxiliary supports (107) enclose the movable opening (101).

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