Pressure-resistant fully-sealed toggle switch

Abstract

The utility model discloses a pressure-resistant fully-sealed toggle switch. The pressure-resistant fully-sealed toggle switch comprises a switch unit, three layers of independent sealed waterproof compartments are constructed at the positions of the base assembly and the handle toggle of the switch unit in a separated manner; the metal pressure-resistant partition plate is installed at the lower end of the sealing metal protective shell, the switch unit and the sealing metal protective shell are separated to form three layers of independent sealing waterproof compartments, sealing glue is filled between the compartments, and the base assembly is formed by assembling a middle conductive part, a wiring end and a base. The watertight cables are connected with the wiring pins of the base assembly in a welding mode, and the welding ends of the switch units welded with the watertight cables need to be filled with sealing glue, so that the wiring ends of the switch units are completely sealed, and the problems that the toggle switch is poor in anti-pressure capability and poor in sealing performance in a deep sea high-pressure environment are solved. And the circuit on-off conversion function of the switch in the deep sea is effectively realized.

Description

Technical Field

[0001] The utility model relates to a pressure-resistant fully sealed toggle switch. Background Art

[0002] According to the definition of deep sea in oceanography: deep sea refers to the sea below the photic layer, generally refers to the sea area below 200m. According to the IP68 protection level requirements in the national standard GB / T4208-2017 "Enclosure Protection Level", the traditional fully sealed toggle switch needs to be submerged indefinitely under the specified water pressure to ensure that it will not be damaged by water immersion. The specified water pressure is generally 0.02MPa~0.04MPa, which is converted into a water depth of 2m-4m, which is far lower than the 200m deep sea requirement.

[0003] The Chinese patent with publication number CN205920920U discloses a high-pressure waterproof miniature toggle switch, whose long handle, upper cover and base are all made of plastic materials. Although plastic materials have certain rigidity and insulation, and are not affected by temperature and humidity, they cannot meet the high-pressure environment requirements in deep-sea environments. Due to the limitations of the protective shell material and sealing structure, when the toggle switch is submerged in water deeper than 200m, it will be affected by the deep-sea environment and will cause corrosion, rupture of the shell and the sealing ring, etc., which can easily lead to the destruction of the sealing of the switch and cause the switch contact mechanism to fail. Therefore, a toggle switch with pressure resistance, sealing performance, and circuit on-off conversion function is needed in deep-sea high-pressure environments. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a pressure-resistant fully sealed toggle switch.

[0005] The utility model is realized through the following technical solutions.

[0006] The utility model provides a pressure-resistant fully sealed button switch, comprising: a switch unit, an outer waterproof ring, an inner waterproof ring, an inner waterproof ring of a flange, a pressure-resistant partition A, a pressure-resistant partition B, a sealing protective shell, a sealing ring, a sealing flange, an inner mounting nut, an outer mounting nut and a sealing gasket. After the switch unit is connected to a watertight cable, it is installed inside the sealing protective shell through the mounting nut, and the pressure-resistant partition A and the pressure-resistant partition B are installed at the lower end of the sealing protective shell.

[0007] Preferably, the switch unit comprises a reversing assembly, a base assembly, a moving contact piece, a sealed housing, a shift block, a slider and a compression spring connected together.

[0008] Preferably, the reversing assembly includes an inner sealing ring, an outer shell, a sleeve, a handle and an axle pin, the inner sealing ring is installed inside the reversing assembly, the handle is movably installed inside the sleeve, and the lower end of the sleeve is fixed to the center of the outer shell.

[0009] Preferably, the reversing assembly is installed inside a sealed protective shell.

[0010] Preferably, the base assembly includes a central conductive member, a terminal, and a base, and the watertight cable is connected to the base assembly terminal.

[0011] Preferably, an O-shaped annular groove structure is provided on the upper end of the sleeve, and an annular groove structure is provided on the handle.

[0012] Preferably, the inner waterproof ring is installed between the handle and the shaft sleeve, and then the sealing flange and the inner waterproof ring of the flange are installed together into the upper end of the sealing protection shell.

[0013] Preferably, the sealing gasket, the outer waterproof ring and the sealing ring are sequentially installed in the annular inner cavity groove of the sealing flange.

[0014] The beneficial effect of the utility model is that it solves the problem that the traditional fully sealed button switch has a single sealing structure and the shell is not resistant to high pressure. The button switch has a metal pressure-resistant protective shell and multiple dynamic and static sealing structures, and can achieve the ability to work in a sealed manner in the deep sea above 200m. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the front view of the button switch of the utility model;

[0016] Figure 2 It is a left view of the toggle switch of the utility model;

[0017] Figure 3 It is a schematic diagram of the switch unit of the utility model;

[0018] Figure 4 This is a schematic diagram of the switch reversing assembly of the utility model;

[0019] Figure 5 This is a schematic diagram of the switch base assembly of the utility model;

[0020] Figure 6 It is a schematic diagram of the sealed metal protective shell of the switch of the utility model;

[0021] Figure 7 This is a schematic diagram of the sealing flange assembly of the switch of the utility model;

[0022] In the figure: 1- switch unit; 101- reversing assembly; 102- base assembly; 103- moving contact piece; 104- sealed housing; 105- shift block; 106- slider; 107- compression spring; 108- watertight cable; 111- inner sealing ring; 112- metal housing; 113- bushing; 114- handle; 115- shaft pin; 121- middle conductive part; 122- terminal; 123- base; 2- outer waterproof ring; 3- inner waterproof ring; 4- flange inner waterproof ring; 5- metal pressure-resistant partition A; 6- metal pressure-resistant partition B; 7- sealed metal protective shell; 8- sealing ring; 9- sealed metal flange; 10- inner mounting nut; 11- outer mounting nut; 12- sealed metal gasket. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and specific examples:

[0024] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0025] See also Figures 1 to 7 shown.

[0026] The utility model discloses a pressure-resistant fully sealed button switch, comprising a switch unit 1, an outer waterproof ring 2, an inner waterproof ring 3, an inner waterproof ring of a flange 4, a pressure-resistant partition A5, a pressure-resistant partition B6, a sealing protective shell 7, a sealing ring 8, a sealing flange 9, an inner mounting nut 10, an outer mounting nut 11 and a sealing gasket 12. The switch unit 1 is connected to a watertight cable 108 and then installed inside the sealing protective shell 7 through the mounting nut 10. The pressure-resistant partition A5 and the pressure-resistant partition B6 are installed at the lower end of the sealing protective shell 7. The sealed metal protective shell is a pressure-resistant protective part of the switch unit and is formed by metal machining. The part is a cylindrical deep cavity structure with excellent high-pressure resistance and non-deformation performance. The inner cavities at both ends of the part are internal thread structures. After the switch unit is installed in the sealed metal protective shell, the sealing flange and the metal partition can be used to achieve overall sealing of the switch.

[0027] The switch unit 1 comprises a switching assembly 101, a base assembly 102, a moving contact piece 103, a sealed housing 104, a shift block 105, a slider 106 and a compression spring 107. The switch unit body has a conventional water pressure sealing capability.

[0028] The reversing assembly 101 includes an inner sealing ring 111, an outer shell 112, a sleeve 113, a handle 114 and an axle pin 115, wherein the inner sealing ring 111 is installed inside the reversing assembly 101, the handle 114 is movably installed inside the sleeve 113, and the lower end of the sleeve 113 is fixed to the center of the outer shell 112.

[0029] The reversing assembly 101 is installed inside the sealing protective shell 8, and forms a three-layer sealing structure with the sealing metal flange, the inner waterproof ring and the outer waterproof ring. The sealing flange is a component of the dynamic and static sealing structure of the switch unit. The parts are installed on the upper end of the metal protective shell. The installed sealing flange can form multiple dynamic and static sealing structures with the switch unit and the sealing ring to achieve the overall sealing of the switch with the sealing metal protective shell.

[0030] The base assembly 102 is composed of a central conductive part 121, a terminal 122, and a base 123. The watertight cable 108 is connected to the terminal pins of the base assembly 102. After the terminal pins of the base assembly are connected to the watertight cables, it is necessary to fill the welding ends with sealing glue to make the terminal completely sealed. After the watertight cables are welded, the switch unit can be installed in a sealed metal protective shell, and cooperate with other sealing components to achieve a deep-sea pressure-resistant full sealing function.

[0031] The watertight cable is used as the terminal connection cable of the switch unit. It adopts an underwater sealing structure. Together with the switch unit and sealed metal protective shell, sealing flange and other parts, it can achieve overall sealing of the switch and meet the deep sea water sealing requirements of the switch.

[0032] An O-shaped annular groove structure is provided at the upper end of the sleeve 113, and an annular groove structure is provided at the handle 114. The addition of the structure enables the reversing assembly to form a three-layer sealing structure with the sealing metal flange, the inner waterproof ring, and the outer waterproof ring after being installed in the sealed metal protective shell, thereby realizing a deep-sea pressure-resistant full sealing function.

[0033] The inner waterproof ring 3 is installed between the handle 114 and the shaft sleeve 113, and then the sealing flange 9 and the flange inner waterproof ring 4 are installed together at the upper end of the sealing protective shell 7 to form a second layer of independent sealed waterproof compartment. The sealing flange is a component of the dynamic and static sealing structure of the switch unit. The parts are installed at the upper end of the metal protective shell. The installed sealing flange can form multiple dynamic and static sealing structures with the switch unit and the sealing ring to achieve the overall sealing of the switch with the sealed metal protective shell.

[0034] The sealing gasket 12, the outer waterproof ring 2, and the sealing ring 8 are sequentially installed in the annular inner cavity groove of the sealing flange 9 to form a third layer of independent sealed waterproof compartment; the inner waterproof ring, the outer waterproof ring and the inner waterproof ring of the flange are connected so that the switch unit and the sealed metal protective shell are separated at the handle toggle position to construct three layers of independent sealed waterproof compartments. The sealed metal protective shell is a pressure-resistant protection part of the switch unit. It is formed by metal machining. The part is a cylindrical deep cavity structure with excellent high-pressure resistance and non-deformation performance. The inner cavities at both ends of the part are internal thread structures. After the switch unit is installed in the sealed metal protective shell, the sealing flange and metal partition can be used to achieve the overall sealing of the switch.

Claims

1. A pressure-resistant fully sealed toggle switch, characterized in that: include: A switch unit (1), an outer waterproof ring (2), an inner waterproof ring (3), an inner waterproof ring of a flange (4), a pressure-resistant partition A (5), a pressure-resistant partition B (6), a sealing protective shell (7), a sealing ring (8), a sealing flange (9), an inner mounting nut (10), an outer mounting nut (11) and a sealing gasket (12); the switch unit (1) is connected to a watertight cable (108) and then mounted inside the sealing protective shell (7) via the mounting nut (10); and the pressure-resistant partition A (5) and the pressure-resistant partition B (6) are mounted at the lower end of the sealing protective shell (7).

2. A pressure-resistant fully sealed toggle switch according to claim 1, characterized in that: The switch unit (1) comprises a reversing assembly (101), a base assembly (102), a moving contact piece (103), a sealed housing (104), a shifting block (105), a slider (106) and a compression spring (107) which are connected together.

3. A pressure-resistant fully sealed toggle switch as claimed in claim 2, characterized in that: The reversing assembly (101) comprises an inner sealing ring (111), an outer shell (112), a shaft sleeve (113), a handle (114) and an axle pin (115) which are connected together; the inner sealing ring (111) is installed inside the reversing assembly (101); the handle (114) is movably installed inside the shaft sleeve (113); and the lower end of the shaft sleeve (113) is fixedly connected to the center of the outer shell (112).

4. A pressure-resistant fully sealed toggle switch as claimed in claim 2, characterized in that: The reversing assembly (101) is installed inside the sealed protective shell (7).

5. The pressure-resistant fully sealed toggle switch according to claim 2, characterized in that: The base assembly (102) is formed by connecting a central conductive member (121), a terminal (122), and a base (123), and the watertight cable (108) is connected to the terminal pins of the base assembly (102).

6. A pressure-resistant fully sealed toggle switch as claimed in claim 3, characterized in that: An O-shaped annular groove structure is provided at the upper end of the shaft sleeve (113), and an annular groove structure is provided on the handle (114).

7. The pressure-resistant fully sealed toggle switch according to claim 1, characterized in that: The inner waterproof ring (3) is installed between the handle (114) and the shaft sleeve (113), and then the sealing flange (9) and the flange inner waterproof ring (4) are installed together into the upper end of the sealing protection shell (7).

8. The pressure-resistant fully sealed toggle switch according to claim 1, characterized in that: The sealing gasket (12), the outer waterproof ring (2), and the sealing ring (8) are sequentially installed in the annular inner cavity groove of the sealing flange (9).

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