CN213400947U - Backlight type membrane switch - Google Patents
Backlight type membrane switch Download PDFInfo
- Publication number
- CN213400947U CN213400947U CN202022573438.2U CN202022573438U CN213400947U CN 213400947 U CN213400947 U CN 213400947U CN 202022573438 U CN202022573438 U CN 202022573438U CN 213400947 U CN213400947 U CN 213400947U
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- membrane switch
- backlight
- pressure sensor
- block
- rotating block
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Abstract
The utility model relates to the technical field of membrane switches, in particular to a backlight membrane switch, which solves the defects in the prior art and comprises an installation shell and a membrane switch, wherein the installation shell is of a cavity structure, side seats are fixed on the two sides of the inner wall of the installation shell through screws, one side of each side seat is provided with a groove, a pressure sensor is fixedly installed in each groove, a rotating shaft is rotatably arranged on the side wall of the installation shell, a rotating block is sleeved on the outer part of the rotating shaft, and the pressure sensor is accurately installed through the arrangement of structures such as a pressing plate, the rotating block, the side seats, the pressure sensor and the like when the backlight plate is completely pressed, a pressing block can press the pressure sensor on one side to transmit signals, the installation precision is improved, if the inside becomes loose in long-term use, the rotating block can deviate under the action of a spring, the pressure sensor is loosened, so that the outside firstly gives a warning, the equipment can be maintained in advance, and the service life is prolonged.
Description
Technical Field
The utility model relates to a membrane switch technical field especially relates to a type of being shaded membrane switch.
Background
The membrane switch is an operation system integrating a key function, an indicating element and an instrument panel. The circuit board consists of four parts, including a panel, an upper circuit, an isolating layer and a lower circuit. When the membrane switch is pressed down, the contact of the upper circuit deforms downwards to be in contact with the polar plate of the lower circuit for conduction, after the finger is loosened, the contact of the upper circuit rebounds, the circuit is disconnected, and the loop triggers a signal. The membrane switch has the advantages of rigorous structure, attractive appearance and good sealing property. Has the characteristics of moisture resistance, long service life and the like. The method is widely applied to the fields of electronic communication and electronic measurement instruments, industrial control, medical equipment, automobile industry, intelligent toys, household appliances and the like.
Installation accuracy when the membrane switch on the existing market uses is lower to the personnel also can't learn after the membrane switch uses for a long time not hard up, lead to the damage of circuit short circuit in the use easily, life is shorter.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art, and provides a backlight type membrane switch.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a backlight type membrane switch comprises a mounting shell and a membrane switch, wherein the mounting shell is of a cavity structure, side seats are fixed on two sides of the inner wall of the mounting shell through screws, a groove is formed in one side of each side seat, a pressure sensor is fixedly mounted in the groove, a rotating shaft is rotatably arranged on the side wall of the mounting shell, a rotating block is sleeved on the outer portion of the rotating shaft, and a pressing block is fixedly arranged on one side of the rotating block;
the bottom of the membrane switch is fixedly provided with a backlight plate, and the bottom of the backlight plate is fixedly provided with symmetrically arranged pressing plates through screws.
Preferably, the rotating block and the pressing block are of an integrally formed structure.
Preferably, a limiting block matched with the rotating block is fixed on the bottom wall of the inner cavity of the mounting shell through screws.
Preferably, a bearing is installed inside the installation shell, and the rotating shaft is sleeved inside the bearing.
Preferably, the outside cover of pivot is equipped with the spring, and the both ends of spring are respectively through buckle and turning block and the inner wall fixed connection of installation casing.
Preferably, the backlight plate and the mounting shell are respectively provided with a first mounting hole and a second mounting hole which correspond to each other.
The utility model has the advantages that: compared with the prior art, the utility model has the advantages of simple structure and reasonable design, through the setting of clamp plate, turning block, side seat, pressure sensors isotructure, when the installation, only compress tightly the installation accurately completely when the board in a poor light, the briquetting just can push down the pressure sensors of one side, with signal transmission, the installation accuracy has been improved, long-term use if inside appear not hard up then the turning block can squint under the effect of spring, loosen pressure sensors, thereby the external warning of sending earlier, can maintain equipment in advance, and service life is prolonged.
Drawings
Fig. 1 is a front view of a backlight type membrane switch according to the present invention;
fig. 2 is an enlarged view of the backlight type membrane switch marked with the symbol a of the present invention;
fig. 3 is a side view of the turning block according to the present invention.
In the figure: the device comprises a mounting shell 1, a membrane switch 2, a backlight plate 3, a pressing plate 4, a rotating block 5, a rotating shaft 6, an inner cavity 7, a side seat 8, a pressure sensor 9, a groove 10, a pressing block 11, a limiting block 12 and a spring 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, a backlight type membrane switch comprises an installation shell 1 and a membrane switch 2, wherein the installation shell 1 is of a cavity structure, side seats 8 are fixed on two sides of the inner wall of the installation shell 1 through screws, a groove 10 is formed in one side of each side seat 8, a pressure sensor 9 is fixedly installed in each groove 10, a rotating shaft 6 is rotatably arranged on the side wall of the installation shell 1, a rotating block 5 is sleeved on the outer portion of each rotating shaft 6, and a pressing block 11 is fixedly arranged on one side of each rotating block 5; the bottom of the membrane switch 2 is fixedly provided with a backlight plate 3, and the bottom of the backlight plate 3 is fixed with symmetrically arranged pressing plates 4 through screws.
Wherein, through clamp plate 4, turning block 5, side seat 8, the setting of pressure sensors 9 isotructures, when the installation, only compress tightly the installation accuracy completely when board 3 in a poor light, the pressure sensors 9 of one side just can be pushed down to briquetting 11, with signal transmission, the installation accuracy has been improved, long-term use if inside appear not hard up then turning block 5 can squint under spring 13's effect, loosen pressure sensors 9, thereby earlier the external warning that sends, can maintain equipment in advance, and service life is prolonged.
Turning block 5 and briquetting 11 are integrated into one piece structure, be fixed with through the screw on the diapire of installation casing 1 inner chamber 7 with turning block 5 assorted stopper 12, the internally mounted of installation casing 1 has the bearing, pivot 6 cover is established in the inside of bearing, the outside cover of pivot 6 is equipped with spring 13, the both ends of spring 13 are respectively through buckle and turning block 5 and the inner wall fixed connection of installation casing 1, set up corresponding first mounting hole and second mounting hole on board 3 in a poor light and the installation casing 1 respectively.
In the embodiment, during installation, the backlight plate 3 with the membrane switch 2 is inserted into the installation shell 1, the installation hole in the backlight plate 3 is aligned with the installation hole in the installation shell 1, then the screw is screwed to complete installation, the pressing plate 4 at the bottom of the backlight plate 3 presses the rotating block 5 in the installation process, so that the rotating block 5 rotates around the rotating shaft 6, and when the bottom of the rotating block 5 is blocked by the limiting block 12, the pressing block 11 at one side touches the pressure sensor 9 to prompt that installation is in place;
further, after long-term use, if the position of the backlight plate 3 is not flexible, movable gaps are generated due to the position deviation between the pressing plate 4 and the rotating block 5, the rotating block 5 rotates under the pushing of the spring 13, so that the pressure sensor 9 on one side is driven to be loosened by the pressing block 11, and the pressure sensor 9 sends out signals to remind people.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The backlight type membrane switch comprises a mounting shell (1) and a membrane switch (2), and is characterized in that the mounting shell (1) is of a cavity structure, side seats (8) are fixed to two sides of the inner wall of the mounting shell (1) through screws, a groove (10) is formed in one side of each side seat (8), a pressure sensor (9) is fixedly mounted inside each groove (10), a rotating shaft (6) is rotatably arranged on the side wall of the mounting shell (1), a rotating block (5) is sleeved outside each rotating shaft (6), and a pressing block (11) is fixedly arranged on one side of each rotating block (5);
the bottom of the membrane switch (2) is fixedly provided with a backlight plate (3), and the bottom of the backlight plate (3) is fixed with symmetrically arranged pressing plates (4) through screws.
2. The backlight-type membrane switch according to claim 1, wherein the rotating block (5) and the pressing block (11) are of an integral structure.
3. The backlight type membrane switch according to claim 1, wherein a limiting block (12) matched with the rotating block (5) is fixed on the bottom wall of the inner cavity (7) of the installation shell (1) through screws.
4. The backlight type membrane switch according to claim 1, wherein a bearing is installed inside the installation housing (1), and the rotating shaft (6) is sleeved inside the bearing.
5. The backlight type membrane switch according to claim 1, wherein the spring (13) is sleeved outside the rotating shaft (6), and two ends of the spring (13) are respectively fixedly connected with the rotating block (5) and the inner wall of the mounting shell (1) through a buckle.
6. The backlight type membrane switch according to claim 1, wherein the backlight plate (3) and the mounting case (1) are respectively provided with a first mounting hole and a second mounting hole corresponding to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022573438.2U CN213400947U (en) | 2020-11-10 | 2020-11-10 | Backlight type membrane switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022573438.2U CN213400947U (en) | 2020-11-10 | 2020-11-10 | Backlight type membrane switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213400947U true CN213400947U (en) | 2021-06-08 |
Family
ID=76194904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022573438.2U Active CN213400947U (en) | 2020-11-10 | 2020-11-10 | Backlight type membrane switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213400947U (en) |
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2020
- 2020-11-10 CN CN202022573438.2U patent/CN213400947U/en active Active
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