Waterproof signal switch

Abstract

The utility model relates to a waterproof signal switch which is provided with a base, an upper shell and a lower shell which are mutually connected, a sealing ring is arranged between the base and the lower shell, the base is provided with a push rod, the push rod penetrates through the middle parts of the upper shell and the lower shell, the periphery of the push rod is sleeved with a sealing leather sheath, the upper part of the push rod is provided with a button, and the lower part of the push rod is provided with a waterproof cover. A magnetic element is arranged on one side of the lower portion of the push rod, a PCB assembly is installed on the upper shell, and the magnetic element faces the PCB assembly. According to the utility model, the magnetic element is matched with the PCB circuit board to realize switch control, the bipolar Hall element on the PCB circuit board is triggered by the magnet, high level or low level can be output according to requirements, and the service life is relatively long because conduction does not need to be carried out in a contact mode in the closing and opening process. And on the structure, the switch uses a sealing structure at multiple positions, the sealing effect of the whole signal switch is greatly improved, and the waterproof requirement of IPX7 level can be met through actual detection.

Description

Technical Field

[0001] The utility model relates to the technical field of signal switches, in particular to a waterproof signal switch. Background Art

[0002] The IP protection level is the waterproof level of IPX7 according to the current international and national mandatory standards GB4208-2008 / IEC60529-2013 "Degree of protection provided by enclosures (IP code)", which means that the waterproof level of the product is level 7. That is to say, when the product is placed in 1-meter-deep water and soaked for 30 minutes, the product can be used normally without being affected; the waterproof level of electronic measuring instruments reflects the instrument's ability to prevent moisture and dust. Especially in outdoor activities, it is inevitable to be in harsh environments with high humidity or a lot of dust and sand. The sealing and waterproof ability of the instrument is crucial for ensuring the safe operation and lifespan of the instrument;

[0003] At present, the waterproof level of some signal switches on the market is generally level 6, which cannot meet the requirements of operating in accumulated water. Content of the Utility Model

[0004] Aiming at the above problems, the purpose of the utility model is to provide a waterproof signal switch with good sealing effect and long service life.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is as follows: A waterproof signal switch has a base, an upper shell and a lower shell which are connected to each other. A sealing ring is provided between the base and the lower shell. A push rod is provided on the base. The push rod passes through the middle parts of the upper shell and the lower shell. A sealing leather sleeve is sleeved on the outer periphery of the push rod. A button is provided on the upper part of the push rod. A magnetic element is provided on one side of the lower part of the push rod. A PCB assembly is installed on the upper shell, and the magnetic element faces the PCB assembly.

[0006] In the above technical scheme, a PCB installation groove for fixing the PCB assembly is provided in the base. A wire outlet hole and a spring fixing column are provided at the bottom of the base. The main spring in the push rod is installed on the spring fixing column.

[0007] In the above technical scheme, sealant treatment is performed at the wire outlet hole. [[ID=2D]]

[0008] In the above technical scheme, a sealing ring groove for installing the sealing ring is provided circumferentially on the inner side of the lower shell.

[0009] In the above technical scheme, limiting protrusions are provided on both sides of the lower part of the push rod, and a limiting sliding rail is provided in the middle of the lower shell, and the limiting protrusions of the push rod are installed in the limiting sliding rail.

[0010] In the above technical solution, a waist-shaped protrusion is provided at the lower part of the button, a waist-shaped hole that mates with the waist-shaped protrusion is provided at the upper part of the push rod, a first leather sleeve fixing groove is provided in the circumferential direction of the waist-shaped protrusion, and the upper part of the sealing leather sleeve is installed in the first leather sleeve fixing groove.

[0011] In the above technical solution, a second leather sleeve fixing groove is provided in the circumferential direction of the upper housing, and the lower part of the sealing leather sleeve is installed in the first leather sleeve fixing groove.

[0012] In the above technical solution, the materials of the sealing leather sleeve and the sealing ring are rubber.

[0013] In summary, the beneficial effects of adopting the technical solution of the present utility model compared with traditional technical means are as follows: The present utility model uses a magnetic element in cooperation with a PCB circuit board to achieve switch control. The bipolar Hall element on the PCB board is triggered by a magnet and can output a high level or a low level according to requirements. Since conduction is not required through contact during the closing and opening process, the service life is relatively long. Structurally, the switch uses a sealing structure in multiple places, such as the contact plane between the sealing leather sleeve and the push rod; the contact surface between the sealing leather sleeve and the lower housing; the contact surfaces between the sealing ring and the base and the lower housing, and finally the potting of the wire outlet. In this way, the sealing effect of the entire signal switch is greatly improved, and the actual detection can meet the waterproof requirement of IPX7 level. Description of the Drawings

[0014] Through the following detailed description in conjunction with the drawings, the foregoing and other objects, features, and advantages of the present utility model will become apparent.

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

[0016] Figure 2 is an exploded view of the present utility model;

[0017] Figure 3 is a schematic diagram of the push rod and the magnetic element in the present utility model;

[0018] Figure 4 is a bottom view of the lower housing of the present utility model;

[0019] Figure 5 is a bottom view of the upper housing of the present utility model;

[0020] Figure 6 is a three-dimensional schematic diagram of the button in the present utility model;

[0021] The reference numerals are as follows: 1. Base; 101. PCB mounting groove; 102. Wire outlet hole; 103. Spring fixing post; 2. Sealing ring; 3. Lower housing; 301. Sealing ring groove; 302. Limit slide rail; 4. Upper housing; 401. Second leather sleeve fixing groove; 5. Sealing leather sleeve; 6. Button; 601. Waist-shaped protrusion; 602. First leather sleeve fixing groove; 7. Self-tapping screw; 8. Push rod; 801. Limit protrusion; 802. Waist-shaped hole; 9. Magnetic element; 10. PCB assembly; 11. Main spring. Detailed implementation mode

[0022] Based on the ideal embodiments of the present invention as inspiration, through the following description, relevant workers can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and must be determined according to the scope of the claims.

[0023] With reference to the following drawings, the present invention will be further described:

[0024] As Figures 1 to 6 shown, a waterproof signal switch has a base 1, an upper housing 4 and a lower housing 3 which are connected to each other. A sealing ring 2 is provided between the base 1 and the lower housing 3. A push rod 8 is provided on the base 1. The push rod 8 passes through the middle parts of the upper housing 4 and the lower housing 3. A sealing leather sleeve 5 is sleeved on the outer periphery of the push rod 8. A button 6 is provided on the upper part of the push rod 8. A magnetic element 9 is provided on one side of the lower part of the push rod 8. A PCB assembly 10 is installed on the upper housing 4, and the magnetic element 9 faces the PCB assembly 10.

[0025] The base 1 is provided with a PCB mounting groove 101 for fixing the PCB assembly 10. A wire outlet hole 102 and a spring fixing post 103 are provided at the bottom of the base 1. The main spring 11 in the push rod 8 is installed on the spring fixing post 103.

[0026] After installing the wire harness, the wire outlet hole 102 is subjected to potting treatment.

[0027] A sealing ring groove 301 for installing the sealing ring 2 is circumferentially provided on the inner side of the lower housing 3.

[0028] Limit protrusions 801 are provided on both sides of the lower part of the push rod 8. A limit slide rail 302 is provided in the middle of the lower housing 3, and the limit protrusions 801 of the push rod are installed in the limit slide rail 302.

[0029] A waist-shaped protrusion 601 is provided at the lower part of the button 6, a waist-shaped hole 802 that cooperates with the waist-shaped protrusion 601 is provided at the upper part of the push rod 8, a first leather sleeve fixing groove 602 is provided in the circumferential direction of the waist-shaped protrusion 601, and the upper part of the sealing leather sleeve 5 is installed in the first leather sleeve fixing groove 602.

[0030] A second leather sleeve fixing groove 401 is provided in the circumferential direction of the upper housing 4, and the lower part of the sealing leather sleeve 5 is installed in the first leather sleeve fixing groove 602.

[0031] The sealing leather sleeve 5 and the sealing ring 2 are made of rubber.

[0032] When installing the present utility model,

[0033] First, pass the wire harness through the wire outlet hole 102 of the base 1 from the outside and weld it to the PCB assembly 10. After welding, install the PCB assembly 10 in the PCB installation groove 101.

[0034] Install the magnetic element 9 on one side of the push rod 8.

[0035] Install the sealing ring 2 into the sealing ring groove 301 of the lower housing 3, then install the push rod 8 into the lower housing 3, then install the main spring 11 on the spring fixing post 103 of the base 1, and finally install the lower housing 3 on the base 1.

[0036] Squeeze the upper end of the sealing leather sleeve 5, pass it through the round hole in the middle of the upper housing 4, and pull it to the bottom. Then install the upper housing 4 on the lower housing 3.

[0037] Align the waist-shaped protrusion 601 of the button 6 with the waist-shaped hole 802 of the push rod 8, then drive in the self-tapping screw 7 for fixation. Finally, seal a layer of silica gel at the wire outlet hole 102. After the silica gel dries, pour epoxy for sealing to complete the whole set of installation.

[0038] When the present utility model is in use:

[0039] In the initial state, the main spring 11 presses against the push rod 8, and one of the magnetic elements on the push rod 8 is close to the Hall element on the PCB assembly 10, and the Hall element outputs a signal, which is high level or low level. At this time, press the push rod 8, this magnetic element 9 slowly moves away from the Hall element, and the other magnetic element 9 approaches the Hall element. The polarities of the two magnetic elements 9 are opposite, and the output of the Hall element changes from high level (or low level) to low level (or high level).

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A waterproof signal switch, which has a base, an upper housing and a lower housing connected to each other, and is characterized in that: A sealing ring is provided between the base and the lower housing. A push rod is provided on the base. The push rod passes through the middle parts of the upper housing and the lower housing. A sealing leather sleeve is sleeved on the outer periphery of the push rod. A button is provided on the upper part of the push rod. A magnetic element is provided on one side of the lower part of the push rod. A PCB assembly is installed on the upper housing, and the magnetic element faces the PCB assembly.

2. The waterproof signal switch according to claim 1, wherein: A PCB installation groove for fixing the PCB assembly is provided in the base. A wire outlet hole and a spring fixing column are provided at the bottom of the base. The main spring in the push rod is installed on the spring fixing column.

3. The waterproof signal switch according to claim 2, wherein: Sealant treatment is performed at the wire outlet hole.

4. The waterproof signal switch according to claim 1, characterized in that: A sealing ring groove for installing the sealing ring is circumferentially provided on the inner side of the lower housing.

5. The waterproof signal switch according to claim 1, characterized in that: Limit protrusions are provided on both sides of the lower part of the push rod. A limit slide rail is provided in the middle of the lower housing, and the limit protrusions of the push rod are installed in the limit slide rail.

6. The waterproof signal switch according to claim 1, wherein: A waist-shaped protrusion is provided at the lower part of the button. A waist-shaped hole that cooperates with the waist-shaped protrusion is provided on the upper part of the push rod. A first leather sleeve fixing groove is provided on the circumference of the waist-shaped protrusion, and the upper part of the sealing leather sleeve is installed in the first leather sleeve fixing groove.

7. The waterproof signal switch according to claim 1, characterized in that: A second leather sleeve fixing groove is provided on the circumference of the upper housing, and the lower part of the sealing leather sleeve is installed in the first leather sleeve fixing groove.

8. The waterproof signal switch according to claim 1, characterized in that: The materials of the sealing leather sleeve and the sealing ring are rubber.

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