Marine explosion-proof switch

Abstract

The utility model relates to a marine explosion-proof switch in the technical field of explosion-proof switches. Comprising an explosion-proof box switch cover, an explosion-proof box wiring base used for limiting the explosion-proof box switch cover is installed at the lower end of the explosion-proof box switch cover, connecting sleeves are installed at the left end and the right end of the explosion-proof box wiring base, and a connecting wire assembly is installed at one end of each connecting sleeve. A first fixing disc is rotated, a threaded column is matched with a threaded hole in the middle of a connecting sleeve to drive the threaded column to get close to the interior of the explosion-proof box wiring base, a locking block gets close to an L-shaped clamping block and is clamped, a second limiting disc moves towards the interior of a hole cavity of a locking hole through attraction of a magnetic block b and a magnetic block a, and through limiting of the locking block, the anti-explosion box wiring base is locked. Therefore, the connecting wire assembly cannot continue to rotate, locking of the connecting wire assembly is completed, and loosening of a line at the connecting wire assembly is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof switches, in particular to a marine explosion-proof switch. Background Art

[0002] Explosion-proof switches can be used in harsh and dangerous explosion environments. They are often used in coal mining industry, paint or ink manufacturers, wood processing plants, cement plants, shipping and sewage treatment, all of which require explosion-proof switches.

[0003] The shell of the explosion-proof switch is made of high-strength alloy through one-time die-casting. The surface is cleaned by high-speed shot blasting and then high-voltage electrostatic spraying. The shell has a compact and reasonable structure, high material density and good strength, and excellent explosion-proof performance. At the same time, the surface plastic powder has strong adhesion and good anti-corrosion ability. It is equipped with a rotary switch and is used in electrical circuits as a power introduction switch.

[0004] When the explosion-proof switch is being wired, the terminal is often connected by threads. After long-term use, the threaded connection end is prone to loosening, causing the line connection to loosen. Utility Model Content

[0005] In order to solve the problem that the threaded connection end is prone to loosening proposed in the above background technology, the utility model provides the following technical solutions:

[0006] A marine explosion-proof switch, comprising an explosion-proof box switch cover;

[0007] An explosion-proof box wiring base for limiting the explosion-proof box switch cover is installed at the lower end of the explosion-proof box switch cover, and connecting sleeves are installed at the left and right ends of the explosion-proof box wiring base, and a connecting wire assembly is installed at one end of the connecting sleeve.

[0008] A limiting groove is provided at one end of the connecting sleeve, and an L-shaped clamping block is installed on the inner wall of the groove cavity of the limiting groove.

[0009] The connecting wire assembly includes a fixing disk 1, a locking assembly is installed in the middle of the fixing disk 1, and a locking assembly 2 for cooperating with the locking assembly to lock the fixing disk 1 is installed at one end of the fixing disk 1.

[0010] The locking assembly comprises a limiting plate 1, and a locking block for engaging with an L-shaped clamping block is installed at one end of the limiting plate 1.

[0011] Furthermore, a switch knob is installed at the upper end of the explosion-proof box switch cover, a connecting block is installed at the lower end of the explosion-proof box switch cover, and a bolt is installed in the middle of the connecting block.

[0012] Furthermore, a nut is installed at the upper end of the connecting sleeve for cooperating with the bolt to limit the switch cover of the explosion-proof box.

[0013] Furthermore, a locking hole is provided in the groove cavity of the limiting groove, a magnetic block a is installed inside the connecting sleeve, and a sealing gasket is installed in the groove cavity of the limiting groove.

[0014] Furthermore, a connecting pipe is installed on one side of the fixing plate 1, and a threaded column is installed on one side of the connecting pipe to cooperate with the connecting sleeve to limit the fixing plate 1.

[0015] Furthermore, the locking block is an L-shaped block, a limiting hole 2 is opened in the middle of the locking block, a limiting hole 3 is opened on one side of the hole cavity of the limiting hole 2, and a plurality of limiting holes 1 are opened in the middle of the limiting plate 1, and the limiting holes 1, 2 and 3 are concentric circles with each other.

[0016] Furthermore, the locking assembly 2 includes a limiting ring 1, and a pull rod for moving the limiting ring 1 is installed at one end of the limiting ring 1.

[0017] Furthermore, a connecting column for telescoping in the hole cavity of the limiting hole one is installed at one end of the limiting ring one, and the connecting column telescoping in the hole cavities of the limiting hole two and the limiting hole three, a limiting plate two for telescoping in the hole cavity of the locking hole is installed at one end of the connecting column, a limiting ring two is installed in the middle part of the connecting column, a plurality of V-shaped elastic blocks for controlling the limiting ring one to reset are installed at the lower end of the limiting ring two, and a magnetic block b for attracting the magnetic block a is installed at one end of the connecting column.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] By rotating the fixing disk 1, the threaded column cooperates with the middle threaded hole of the connecting sleeve to drive the threaded column to approach the inside of the explosion-proof box wiring base, so that the locking block approaches the L-shaped clamping block and engages, and through the attraction of the magnetic blocks b and a, the limiting disk 2 moves into the hole cavity of the locking hole, and by limiting the locking block, the connecting wire assembly cannot continue to rotate, thereby completing the locking of the connecting wire assembly to prevent the line at the connecting wire assembly from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the marine explosion-proof switch of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the connecting wire assembly of the utility model;

[0022] Figure 3 This is a structural schematic diagram of a locking component 1 of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the locking component 2 of the utility model;

[0024] Figure 5 For this utility model Figure 1 Enlarged view of point A.

[0025] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0026] 100-explosion-proof box switch cover, 110-switch knob, 120-connection block, 121-bolt, 200-explosion-proof box wiring base, 210-connection sleeve, 211-nut, 212-limiting groove, 213-locking hole, 214-magnetic block a, 220-sealing pad, 230-L-shaped block;

[0027] 001-Connecting wire assembly;

[0028] 300-fixed plate 1, 310-connecting pipe, 320-threaded column;

[0029] 400-locking component 1, 410-limiting plate 1, 411-limiting hole 1, 420-locking block, 421-limiting hole 2, 422-limiting hole 3;

[0030] 500-locking component 2, 510-limiting ring 1, 511-pull rod, 520-connecting column, 521-limiting plate 2, 522-limiting ring 2, 523-V-shaped elastic block, 524-magnetic block b. DETAILED DESCRIPTION

[0031] The preferred specific implementation methods for implementing the present utility model are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0032] See also Figure 1-Figure 5 The utility model provides a marine explosion-proof switch, including an explosion-proof box switch cover 100 and an explosion-proof box wiring base 200. When installing the connecting wire assembly 001, by rotating the fixing plate 1 300, the threaded column 320 cooperates with the middle threaded hole of the connecting sleeve 210 to drive the threaded column 320 to approach the inside of the explosion-proof box wiring base 200, so that the locking block 420 approaches the L-shaped clamping block 230 and is engaged. Through the attraction of the magnetic block b524 and the magnetic block a214, the limiting plate 2 521 moves into the cavity of the locking hole 213, so that the connecting wire assembly 001 cannot continue to rotate, thereby completing the locking of the connecting wire assembly 001 and preventing the line at the connecting wire assembly 001 from loosening.

[0033] The upper end of the explosion-proof box switch cover 100 is equipped with a switch knob 110, the lower end of the explosion-proof box switch cover 100 is fixedly equipped with a connection block 120 on both sides, the middle of the connection block 120 is equipped with a bolt 121, the lower end of the explosion-proof box switch cover 100 is equipped with an explosion-proof box wiring base 200 for limiting the explosion-proof box switch cover 100, and the left and right ends of the explosion-proof box wiring base 200 are fixedly equipped with a connection sleeve 210, and the interior of the connection sleeve 210 is provided with a threaded hole that is convenient for engaging with the threaded column 320. The upper end of the connection sleeve 210 is fixedly equipped with a nut 211 for cooperating with the bolt 121 to limit the explosion-proof box switch cover 100. When the explosion-proof box switch cover 100 and the explosion-proof box wiring base 200 are installed, the explosion-proof box switch cover 100 and the explosion-proof box wiring base 200 are fixedly connected through the cooperation of the bolt 121 and the nut 211.

[0034] A limiting groove 212 is provided at one end of the connecting sleeve 210, and the locking assembly 400 moves in the groove cavity of the limiting groove 212. A plurality of locking holes 213 are provided in the groove cavity of the limiting groove 212 for the limiting disk 2 521 to extend and retract. When the limiting disk 2 521 extends into the groove cavity of the locking hole 213, the L-shaped clamping block 230 and the locking block 420 are engaged. A magnetic block a214 is fixedly installed inside the connecting sleeve 210. The magnetic block a214 and the magnetic block b524 attract each other, so that after the L-shaped clamping block 230 and the locking block 420 are engaged, the limiting hole 2 421 and the locking hole 213 are aligned, so that the connecting column 520 is close to the locking hole 213, so that the limiting disk 2 521 is inserted into the hole cavity of the locking hole 213, and the locking assembly 400 is locked.

[0035] A sealing gasket 220 is placed in the groove cavity of the limiting groove 212. An L-shaped block 230 is fixedly installed on the inner wall of the groove cavity of the limiting groove 212. The L-shaped block 230 includes a third straight plate and a fourth straight plate, and the third straight plate is fixedly installed on the inner wall of the groove cavity of the limiting groove 212, and the fourth straight plate is fixedly installed on one side of the L-shaped block 230. When the L-shaped block 230 and the locking block 420 are engaged, the fourth straight plate of the L-shaped block 230 and the second straight plate of the locking block 420 are engaged, and the fourth straight plate of the L-shaped block 230 is away from the connecting column 520.

[0036] A connecting wire assembly 001 is installed at one end of the connecting sleeve 210, and the connecting wire assembly 001 includes a fixed disk 300, a connecting tube 310 is fixedly installed on one side of the fixed disk 300, and a threaded column 320 is fixedly installed on one side of the connecting tube 310 for cooperating with the connecting sleeve 210 to limit the fixed disk 300. The threaded column 320 cooperates with the middle spiral groove of the connecting sleeve 210 to limit the fixed disk 300, so that when the fixed disk 300 is rotated, the locking assembly 400 moves toward the groove cavity of the limiting groove 212.

[0037] The locking assembly 400 is fixedly installed in the middle of the fixing plate 1 300, and the connecting pipe 310 is located on one side of the locking assembly 400, and the threaded column 320 is located on the other side of the locking assembly 400. The locking assembly 400 includes a limiting plate 1 410, and a locking block 420 for engaging with the L-shaped clamping block 230 is installed at one end of the limiting plate 1 410. The locking block 420 is an L-shaped block. The locking block 420 is composed of a first straight plate and a second straight plate, and the first straight plate is fixedly connected to the limiting plate 1 410, and the second straight plate is away from the limiting plate 1 410. A limiting hole 2 421 is provided in the middle of the locking block 420, and a limiting hole 3 422 is provided on one side of the cavity of the limiting hole 2 421, and the limiting hole 2 421 and the limiting hole 3 422 are provided on the second straight plate. A plurality of limiting holes 1 411 are provided in the middle of the limiting plate 1 410, and the limiting holes 1 411, 2 limiting holes 421 and 3 limiting holes 422 are concentric circles, so that the connecting column 520 can be extended and retracted in the holes of the limiting holes 1 411, 2 limiting holes 421 and 3 limiting holes 422. When the locking block 420 and the L-shaped clamping block 230 are engaged, the limiting hole 1 411 and the locking hole 213 are aligned, so that the magnetic block a 214 and the magnetic block b 524 attract each other, and drive the limiting plate 2 521 to be clamped into the hole of the locking hole 213.

[0038] One end of the fixed disk 1 300 is installed with a locking assembly 2 500 for cooperating with the locking assembly 400 to lock the fixed disk 1 300, and the locking assembly 2 500 is sleeved on the outside of the connecting pipe 310. The locking assembly 2 500 includes a limiting ring 1 510, and one end of the limiting ring 1 510 is fixedly installed with a pull rod 511 for moving the limiting ring 1 510. When the locking assembly 400 needs to be unlocked, the pull rod 511 is moved to move the limiting ring 1 510 away from the limiting disk 1 410, thereby driving the limiting disk 2 521 away from the locking hole 213, and the locking assembly 400 is unlocked, so that the fixed disk 1 300 can drive the locking assembly 400 to rotate, and the connecting wire assembly 001 has been disassembled.

[0039] A connecting column 520 for telescoping in the cavity of the limiting hole 1 411 is fixedly installed at one end of the limiting ring 1 510, and the connecting column 520 telescopes in the cavity of the limiting hole 2 421 and the limiting hole 3 422. A limiting disk 2 521 for telescoping in the cavity of the locking hole 213 is fixedly installed at one end of the connecting column 520 close to the locking hole 213. A limiting ring 2 522 is fixedly installed in the middle part of the connecting column 520. A plurality of V-shaped elastic blocks 523 for controlling the limiting ring 1 510 to reset are fixedly installed at the lower end of the limiting ring 2 522. When the magnetic block b524 and the magnetic block a214 attract each other, the limiting ring 2 522 cooperates with the second straight plate of the locking block 420 to squeeze the V-shaped elastic block 523, so that the limiting disk 2 521 moves toward the groove cavity of the locking hole 213. One end of the connecting column 520 is installed with a magnetic block b524 for attracting the magnetic block a214. When the limit plate 2 521 is away from the groove cavity of the locking hole 213, the fixed plate 1 300 is rotated to make the locking assembly 400 rotate synchronously, thereby driving the magnetic block b524 away from the magnetic block a214, so that when the V-shaped elastic block 523 is reset, the limit plate 2 521 is driven to move into the groove cavity of the limit hole 3 422, so that when the locking assembly 400 is rotated, the limit plate 2 521 is not easy to collide with the L-shaped block 230.

[0040] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the utility model. In addition, any non-creative modifications made to the utility model by those skilled in the art without making creative work still fall within the scope of protection of the utility model.

Claims

1. A marine explosion-proof switch, comprising an explosion-proof box switch cover (100), characterized in that: An explosion-proof box wiring base (200) for limiting the position of the explosion-proof box switch cover (100) is installed at the lower end of the explosion-proof box switch cover (100), and connecting sleeves (210) are installed at the left and right ends of the explosion-proof box wiring base (200), and a connecting wire assembly (001) is installed at one end of the connecting sleeve (210); A limiting groove (212) is provided at one end of the connecting sleeve (210), and an L-shaped clamping block (230) is installed on the inner wall of the groove cavity of the limiting groove (212); The connecting wire assembly (001) comprises a fixing disk 1 (300), a locking assembly (400) is installed in the middle of the fixing disk 1 (300), and a locking assembly 2 (500) is installed at one end of the fixing disk 1 (300) for cooperating with the locking assembly (400) to lock the fixing disk 1 (300); The locking assembly (400) comprises a limiting plate (410), and a locking block (420) for engaging with an L-shaped clamping block (230) is installed at one end of the limiting plate (410).

2. A marine explosion-proof switch according to claim 1, characterized in that: A switch knob (110) is installed at the upper end of the explosion-proof box switch cover (100), a connecting block (120) is installed at the lower end of the explosion-proof box switch cover (100), and a bolt (121) is installed in the middle of the connecting block (120).

3. A marine explosion-proof switch according to claim 2, characterized in that: The upper end of the connecting sleeve (210) is provided with a nut (211) for cooperating with the bolt (121) to limit the position of the explosion-proof box switch cover (100).

4. A marine explosion-proof switch according to claim 1, characterized in that: A locking hole (213) is provided in the groove cavity of the limiting groove (212), a magnetic block a (214) is installed inside the connecting sleeve (210), and a sealing gasket (220) is installed in the groove cavity of the limiting groove (212).

5. The marine explosion-proof switch according to claim 1, characterized in that: A connecting pipe (310) is installed on one side of the fixing plate 1 (300), and a threaded column (320) is installed on one side of the connecting pipe (310) for cooperating with the connecting sleeve (210) to limit the position of the fixing plate 1 (300).

6. A marine explosion-proof switch according to claim 4, characterized in that: The locking block (420) is an L-shaped block, a second limiting hole (421) is provided in the middle of the locking block (420), a third limiting hole (422) is provided on one side of the cavity of the second limiting hole (421), a plurality of first limiting holes (411) are provided in the middle of the first limiting plate (410), and the first limiting hole (411), the second limiting hole (421) and the third limiting hole (422) are concentric circles with each other.

7. A marine explosion-proof switch according to claim 6, characterized in that: The locking assembly 2 (500) comprises a limiting ring 1 (510), and a pull rod (511) for moving the limiting ring 1 (510) is installed at one end of the limiting ring 1 (510).

8. A marine explosion-proof switch according to claim 7, characterized in that: A connecting column (520) for telescoping in the cavity of the limiting hole (411) is installed at one end of the limiting ring (510), and the connecting column (520) telescoping in the cavity of the limiting hole (421) and the limiting hole (422). A limiting plate (521) for telescoping in the cavity of the locking hole (213) is installed at one end of the connecting column (520). A limiting ring (522) is installed in the middle of the connecting column (520). A plurality of V-shaped elastic blocks (523) for controlling the limiting ring (510) to reset are installed at the lower end of the limiting ring (522). A magnetic block (b) (524) for attracting the magnetic block (214) is installed at one end of the connecting column (520).

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