CN216450549U

CN216450549U - Logic switch with waterproof function

Info

Publication number: CN216450549U
Application number: CN202122559822.1U
Authority: CN
Inventors: 舒本刚; 乔长久
Original assignee: Dongguan Tianqian Electronics Co ltd
Current assignee: Dongguan Tianqian Electronics Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-05-06
Anticipated expiration: 2031-10-22

Abstract

The utility model relates to the technical field of logic switches, in particular to a logic switch with a waterproof function, which comprises a rotating shaft, a terminal, a base and a top cover connected with the base, wherein the rotating shaft is connected with the terminal; an accommodating cavity is formed between the base and the top cover; the rotating shaft penetrates through the top cover and is rotatably arranged in the accommodating cavity; the bottom of the accommodating cavity is provided with a carbon diaphragm; the carbon diaphragm is provided with a conductive layer; the terminal penetrates through the base and is electrically connected with the conducting layer; the rotating shaft is provided with a brush; the brush is provided with a contact pin which is in contact with the conductive layer; a first sealing ring is arranged between the rotating shaft and the top cover; and a second sealing ring is arranged between the base and the top cover. According to the utility model, the first sealing ring is arranged between the rotating shaft and the top cover, so that water can be prevented from entering the accommodating cavity from a gap between the rotating shaft and the top cover, and meanwhile, the second sealing ring is arranged between the base and the top cover, so that water can be prevented from entering the accommodating cavity from a gap between the base and the top cover, and the waterproof performance of the logic switch is enhanced.

Description

Logic switch with waterproof function

Technical Field

The utility model relates to the technical field of logic switches, in particular to a logic switch with a waterproof function.

Background

The logic switch is a device for compiling and converting signals or data into signal forms which can be used for communication, transmission and storage, and can be divided into an incremental encoder and an absolute encoder according to the working principle. Each position of the absolute encoder corresponds to a certain digital code, so that its representation is only dependent on the start and end positions of the measurement, and not on the intermediate course of the measurement.

Absolute encoder includes parts such as pivot, top cap and base, and in the equipment, there is the gap easily between pivot and the top cap and between base and the top cap for inside the water source of outside enters into absolute encoder from the gap easily, thereby damages absolute encoder.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a logic switch with a waterproof function against the defects in the prior art.

The purpose of the utility model is realized by the following technical scheme: a logic switch with a waterproof function comprises a rotating shaft, a terminal, a base and a top cover connected with the base; an accommodating cavity is formed between the base and the top cover; the rotating shaft penetrates through the top cover and is rotatably arranged in the accommodating cavity;

the bottom of the accommodating cavity is provided with a carbon diaphragm; the carbon diaphragm is provided with a conductive layer; the terminal penetrates through the base and is electrically connected with the conducting layer; the rotating shaft is provided with a brush; the brush is provided with a contact pin which is in contact with the conductive layer;

a first sealing ring is arranged between the rotating shaft and the top cover; and a second sealing ring is arranged between the base and the top cover.

The utility model further provides that the top of the base is inwards sunken to form a pit; the second sealing ring is laid in the concave pit.

The utility model is further provided that the top of the pit is provided with a fixed column; and the bottom of the top cover is provided with a fixing hole matched with the fixing column.

The utility model is further provided that the rotating shaft is provided with a boss; the top cover is provided with a yielding groove; the first sealing ring is arranged between the boss and the abdicating groove.

The utility model is further provided that the end of the contact pin is provided with an elastic contact.

The utility model is further provided that the logic switch with the waterproof function further comprises a limiting mechanism for limiting the rotation of the rotating shaft.

The utility model is further provided that the limiting mechanism comprises a turntable arranged at the bottom of the rotating shaft and a limiting ring arranged on the top cover; the limiting ring is arranged at the top of the turntable; the brush is fixed at the bottom of the turntable; the top of the rotary table is provided with a plurality of convex edges; a limiting groove is arranged between two adjacent convex edges; the limiting ring is downwards sunken to form an elastic convex point matched with the limiting groove.

The utility model is further provided that a plurality of convex edges are arranged on the top of the rotary disc at equal intervals.

The utility model has the beneficial effects that: according to the utility model, the first sealing ring is arranged between the rotating shaft and the top cover, so that water can be prevented from entering the accommodating cavity from a gap between the rotating shaft and the top cover, and meanwhile, the second sealing ring is arranged between the base and the top cover, so that water can be prevented from entering the accommodating cavity from a gap between the base and the top cover, and the waterproof performance of the logic switch is enhanced.

Drawings

The utility model is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the utility model, and for a person skilled in the art, further drawings can be derived from the following drawings without inventive effort.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a schematic structural view of a rotating shaft according to the present invention;

FIG. 5 is a schematic diagram of the structure of the base of the present invention in cooperation with a carbon membrane;

wherein: 1. a rotating shaft; 11. a boss; 2. a terminal; 3. a base; 31. a pit; 32. fixing a column; 4. a top cover; 41. a yielding groove; 5. an accommodating cavity; 6. a carbon membrane; 61. a conductive layer; 7. a brush; 71. a contact pin; 72. an elastic contact; 81. a first seal ring; 82. a second seal ring; 91. a limiting ring; 92. elastic salient points; 93. a turntable; 94. a convex edge; 95. a limiting groove.

Detailed Description

The utility model is further described with reference to the following examples.

As shown in fig. 1 to 5, the logic switch with waterproof function in this embodiment includes a rotating shaft 1, a terminal 2, a base 3, and a top cover 4 connected to the base 3; an accommodating cavity 5 is formed between the base 3 and the top cover 4; the rotating shaft 1 penetrates through the top cover 4 and is rotatably arranged in the accommodating cavity 5;

the bottom of the accommodating cavity 5 is provided with a carbon diaphragm 6; the carbon membrane 6 is provided with a conductive layer 61; the terminal 2 penetrates through the base 3 and is electrically connected with the conductive layer 61; the rotating shaft 1 is provided with a brush 7; the brush 7 is provided with contact pins 71 which are in contact with the conductive layer 61;

a first sealing ring 81 is arranged between the rotating shaft 1 and the top cover 4; a second sealing ring 82 is arranged between the base 3 and the top cover 4.

Specifically, when the logic switch with waterproof function of this embodiment is used, the rotating shaft 1 protruding out of the top cover 4 is rotated, so that the brush 7 connected to the rotating shaft 1 is rotated, and during the rotation of the brush 7, the plurality of contact pins 71 on the brush 7 are respectively contacted with or separated from the different conductive layers 61 on the carbon membrane 6, so that the different terminals 2 are electrically conducted, so that the logic switch can output different signals; in addition, this embodiment can prevent water from entering the accommodating cavity 5 from the gap between the rotating shaft 1 and the top cover 4 by arranging the first sealing ring 81 between the rotating shaft 1 and the top cover 4, and can prevent water from entering the accommodating cavity 5 from the gap between the base 3 and the top cover 4 by arranging the second sealing ring 82 between the base 3 and the top cover 4, thereby enhancing the waterproof performance of the logic switch.

In the logic switch with the waterproof function in this embodiment, the top of the base 3 is recessed inwards to form a pit 31; the second sealing ring 82 is laid in the concave pit 31. Specifically, through the above arrangement, the second sealing ring 82 is conveniently fixed and positioned, and meanwhile, water can be effectively prevented from entering the accommodating cavity 5 from a gap between the base 3 and the top cover 4.

In the logic switch with the waterproof function in this embodiment, the top of the pit 31 is provided with a fixing column 32; and the bottom of the top cover 4 is provided with a fixing hole matched with the fixing column 32. Through the arrangement, the base 3 and the top cover 4 can be positioned and fixed conveniently.

In the logic switch with the waterproof function of the embodiment, the rotating shaft 1 is provided with the boss 11; the top cover 4 is provided with a yielding groove 41; the first seal ring 81 is disposed between the boss 11 and the relief groove 41. Specifically, through the above arrangement, the first sealing ring 81 is conveniently fixed and positioned, and meanwhile, water can be effectively prevented from entering the accommodating cavity 5 from a gap between the rotating shaft 1 and the top cover 4.

In the logic switch with waterproof function described in this embodiment, the end of the contact pin 71 is provided with the elastic contact 72. With the above arrangement, contact between the contact pin 71 and the conductive layer 61 can be ensured.

The logic switch with the waterproof function in this embodiment further includes a limiting mechanism for limiting rotation of the rotating shaft 1.

In the logic switch with the waterproof function of this embodiment, the limiting mechanism includes a turntable 93 disposed at the bottom of the rotating shaft 1 and a limiting ring 91 disposed on the top cover 4; the limiting ring 91 is arranged at the top of the turntable 93; the brush 7 is fixed at the bottom of the turntable 93; the top of the rotary disc 93 is provided with a plurality of ribs 94; a limiting groove 95 is arranged between two adjacent convex edges 94; the limiting ring 91 is recessed downwards to form an elastic salient point 92 which is matched with the limiting groove 95.

Specifically, through the above arrangement, when the rotating shaft 1 rotates, the protruding rib 94 compresses the elastic bump 92 to enable the elastic bump 92 to be compressed and deformed, the rotating shaft 1 continues to rotate, and when the elastic bump 92 falls into the next limiting groove 95, a certain limiting effect is achieved between the limiting groove 95 and the elastic bump 92, so that the angle of the brush 7 can be changed while a certain retaining force is achieved, and the structure of the logic switch is more stable.

In the logic switch with waterproof function described in this embodiment, a plurality of ribs 94 are disposed on the top of the rotary plate 93 at equal intervals. The structure of the logic switch is more compact and reasonable through the arrangement.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a logic switch with waterproof function which characterized in that: comprises a rotating shaft (1), a terminal (2), a base (3) and a top cover (4) connected with the base (3); an accommodating cavity (5) is formed between the base (3) and the top cover (4); the rotating shaft (1) penetrates through the top cover (4) and is rotatably arranged in the accommodating cavity (5);

a carbon diaphragm (6) is arranged at the bottom of the accommodating cavity (5); the carbon membrane (6) is provided with a conductive layer (61); the terminal (2) penetrates through the base (3) and is electrically connected with the conducting layer (61); the rotating shaft (1) is provided with a brush (7); the brush (7) is provided with a contact pin (71) which is in contact with the conductive layer (61);

a first sealing ring (81) is arranged between the rotating shaft (1) and the top cover (4); and a second sealing ring (82) is arranged between the base (3) and the top cover (4).

2. The logic switch with waterproof function of claim 1, wherein: the top of the base (3) is inwards sunken to form a pit (31); the second sealing ring (82) is laid in the concave pit (31).

3. A logic switch with waterproof function according to claim 2, characterized in that: the top of the pit (31) is provided with a fixing column (32); the bottom of the top cover (4) is provided with a fixing hole matched with the fixing column (32).

4. The logic switch with waterproof function of claim 1, wherein: a boss (11) is arranged on the rotating shaft (1); the top cover (4) is provided with a yielding groove (41); the first sealing ring (81) is arranged between the boss (11) and the abdicating groove (41).

5. The logic switch with waterproof function of claim 1, wherein: and an elastic contact (72) is arranged at the end part of the contact pin (71).

6. The logic switch with waterproof function of claim 1, wherein: the logic switch with the waterproof function further comprises a limiting mechanism used for limiting the rotation of the rotating shaft (1).

7. A logic switch with waterproof function according to claim 6, characterized in that: the limiting mechanism comprises a turntable (93) arranged at the bottom of the rotating shaft (1) and a limiting ring (91) arranged on the top cover (4); the limiting ring (91) is arranged at the top of the turntable (93); the brush (7) is fixed at the bottom of the turntable (93); the top of the rotary disc (93) is provided with a plurality of ribs (94); a limiting groove (95) is arranged between two adjacent convex edges (94); the limiting ring (91) is sunken downwards to form an elastic convex point (92) matched with the limiting groove (95).

8. The logic switch with waterproof function of claim 7, wherein: the plurality of ribs (94) are arranged on the top of the rotary disc (93) at equal intervals.