Quick isolating switch

Abstract

The utility model discloses a rapid disconnecting switch, which is provided with an outer shell (1), a rotary knob (2) is arranged on the outer shell (1), the rotary knob (2) is connected with a driving shaft (14), the driving shaft (14) is further connected with a rotating disc (6), and a limiting assembly capable of limiting the rotation of the rotating disc (6) is arranged in the outer shell (1). A protrusion (7) is arranged on the outer side wall of the rotating disc (6) in an extending mode, the rotating disc (6) is located in the rotating sleeve (5), an opening (11) is formed in the outer side wall of the rotating sleeve (5), an inward shrinkage part (8) is arranged at the position, corresponding to the opening (11), of the rotating sleeve (5), the protrusion (7) can be clamped into the opening (11) to achieve limiting of the rotating sleeve (5), and a torsional spring (16) is arranged between the rotating disc (6) and the rotating sleeve (5). And the rotating sleeve (5) is connected with the moving contact disc assembly (17). The switch is simple in structure, and can drive the moving contact disc assembly to rotate rapidly, thereby achieving the rapid connection and disconnection of a power supply, and improving the stability and safety.

Description

Technical Field

[0001] The utility model relates to a safe electricity switch, in particular to a fast isolating switch. Background Art

[0002] When repairing electrical equipment, it is necessary to cut off the power supply, separate the repaired part from the live part, and maintain an effective isolation distance, which requires the voltage withstand level of overvoltage between its breaking ports. Isolating switches are used to cut off the power supply. One type of isolating switch uses a knob to drive the drive shaft to rotate, which in turn drives the moving contact disk to rotate, and contact or separate with the static contact to achieve power on and off. The defects of this type of isolating switch are: the speed of manual control knob rotation is limited, which cannot meet the use requirements of fast power on and off, and the moving and static contacts will generate a large arc when disconnected, affecting the normal operation of other components inside the switch. Utility Model Content

[0003] In view of the shortcomings of the background technology, the technical problem to be solved by the present invention is to provide a fast isolating switch for solving the above problems.

[0004] To this end, the utility model is implemented by adopting the following scheme:

[0005] A fast isolating switch comprises an outer shell, a rotatable knob is arranged on the outer shell, the knob is connected to a driving shaft, a rotating disk is also connected to the driving shaft, a limiting assembly which can limit the rotation of the rotating disk is arranged in the outer shell, a protrusion is extendedly arranged on the outer wall of the rotating disk, the rotating disk is located in a rotating sleeve, an opening is opened on the outer wall of the rotating sleeve, and a retracted portion is arranged on the rotating sleeve at a position corresponding to the opening, the protrusion can be snapped into the opening to limit the rotating sleeve, a torsion spring is arranged between the rotating disk and the rotating sleeve, and the rotating sleeve is connected to a moving contact disk assembly.

[0006] The driving shaft is connected with a first transmission pin and a second transmission pin. The first transmission pin is inserted into a first slot on the knob, and the second transmission pin is inserted into a second slot on the rotating disk.

[0007] Two protrusions are symmetrically arranged.

[0008] The rotating sleeve is provided with convex blocks at both ends of its opening, and the convex blocks are provided with arc-shaped surfaces that can contact with the protrusions.

[0009] The limiting assembly comprises a limiting block arranged in the outer shell, and the rotating disk is provided with a boss which can abut against the limiting block.

[0010] A quick isolating switch of the above technical solution, by setting a rotating disk, a rotating sleeve and a torsion spring matching structure, can use the elastic potential energy accumulated on the torsion spring to assist the rotating sleeve to rotate quickly, thereby realizing rapid switching on and off of the isolating switch, better meeting the user's usage needs, and improving its working stability and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model has the following drawings:

[0012] Figure 1 This is the external structure diagram of the utility model;

[0013] Figure 2 This is a structural diagram of the knob of the utility model;

[0014] Figure 3 It is the internal structure diagram of the utility model;

[0015] Figure 4 for Figure 3 A partial enlarged view of the area pointed by A in the middle;

[0016] Figure 5 for Figure 3 Another perspective of the view.

[0017] Figure 6 It is a partial structural diagram of the outer shell of the utility model. DETAILED DESCRIPTION

[0018] As shown in the figure, a fast isolating switch disclosed by the utility model has an outer shell 1, on which a rotatable knob 2 is arranged, the knob 2 is connected to a drive shaft 14, and a rotating disk 6 is also connected to the drive shaft 14. Specifically, a first transmission pin 15 and a second transmission pin 12 are connected to the drive shaft 14, the first transmission pin 15 is inserted into a first slot 3 on the knob 2, and the second transmission pin 12 is inserted into a second slot 13 on the rotating disk 6. The assembly and transmission between the knob 2, the drive shaft 14 and the rotating disk 6 can be facilitated by the structure of the transmission pin and the slot. A limit assembly that can limit the rotation of the rotating disk 6 is arranged in the outer shell 1, and specifically, the limit assembly includes a limit block 19 arranged in the outer shell 1, and a boss 18 that can abut against the limit block 19 is arranged on the rotating disk 6. The outer wall of the rotating disk 6 is extendedly provided with a protrusion 7, and two protrusions 7 are symmetrically provided, corresponding to the two states of disconnection and connection. When the rotating disk 6 is located in the rotating sleeve 5, the outer wall of the rotating sleeve 5 is provided with an opening 11, and the rotating sleeve 5 is provided with a retracted portion 8 at the corresponding position of the opening 11. The protrusion 7 can be inserted into the opening 11 to limit the rotating sleeve 5. A torsion spring 16 is provided between the rotating disk 6 and the rotating sleeve 5, and the rotating sleeve 5 is connected to the moving contact disk assembly 17. Further, the rotating sleeve 5 is provided with a protrusion 9 at both ends of its opening 11, and the protrusion 9 is provided with an arc surface 10 that can contact the protrusion 7, so that the cooperation between the protrusion 9 and the protrusion 7 when sliding relative to each other is smoother, and the rotating sleeve 5 is made of plastic material.

[0019] The working principle of the utility model is as follows: when the isolating switch is in the on state, one of the protrusions 7 on the rotating disk 6 is just inserted into the opening 11 of the rotating sleeve 5 and abuts against the rotating sleeve 5, limiting the rotation of the rotating sleeve 5, and the boss 18 on the rotating disk 6 also abuts against the corresponding limit block 19, limiting the rotation of the rotating disk 6, and at this time the torsion spring 16 between the rotating disk 6 and the rotating sleeve 5 is in a tightened state, and the moving contact on the moving contact disk assembly 17 is kept in contact with the static contact 4 to realize the connection of the switch; when the switch needs to be controlled to be disconnected, the driving shaft 14 and the rotating disk 6 are rotated by rotating the knob 2, and the protrusion 7 on the rotating disk 6 squeezes the protrusion 9 causes the rotating sleeve 5 to be slightly deformed and causes the protrusion 7 to escape from the opening 11 and enter the inner ring of the rotating sleeve 5. At this time, the rotating sleeve 5 is no longer limited by the protrusion 7. The torsion spring 16 drives the rotating sleeve 5 and the moving contact disk assembly 17 to rotate rapidly, so that the moving contact is separated from the static contact to achieve rapid disconnection. As the knob 2 drives the rotating disk 6 to rotate, the boss 18 on the rotating disk 6 abuts against another corresponding limit block 19 to achieve the positioning of the rotating disk 6. The other protrusion 7 is inserted into the opening 11 on the rotating sleeve 5 to realize the positioning of the rotating sleeve 5 to the disconnected position. In this process, the torsion spring 16 is also tightened again by its elastic potential energy.

[0020] The structure of the utility model, by setting a rotating disk, a rotating sleeve and a torsion spring matching structure, can use the elastic potential energy accumulated in the torsion spring to assist the rotating sleeve to rotate quickly, thereby realizing rapid switching on and off of the isolating switch, better meeting the user's usage needs, and improving its working stability and safety.

Claims

1. A fast disconnect switch, comprising an outer shell (1), the outer shell (1) being provided with a rotatable knob (2), the knob (2) being connected to a drive shaft (14), the drive shaft (14) being further connected to a rotating disk (6), a limiting assembly being provided in the outer shell (1) for limiting the rotation of the rotating disk (6), a protrusion (7) being extendedly provided on the outer side wall of the rotating disk (6), the rotating disk (6) being located in a rotating sleeve (5), the outer side wall of the rotating sleeve (5) being provided with an opening (11), and the rotating sleeve (5) being provided with an indentation (8) at a position corresponding to the opening (11), the protrusion (7) being able to be snapped into the opening (11) to limit the position of the rotating sleeve (5), a torsion spring (16) being provided between the rotating disk (6) and the rotating sleeve (5), and the rotating sleeve (5) being connected to a moving contact disk assembly (17).

2. A fast isolating switch according to claim 1, characterized in that The drive shaft (14) is connected to a first transmission pin (15) and a second transmission pin (12); the first transmission pin (15) is snapped into a first snap-in groove (3) on the knob (2), and the second transmission pin (12) is snapped into a second snap-in groove (13) on the rotating disk (6).

3. A fast isolating switch according to claim 1, characterized in that Two protrusions (7) are symmetrically arranged.

4. A fast isolating switch according to claim 1, characterized in that The rotating sleeve (5) is provided with protrusions (9) at both ends of its opening (11), and the protrusions (9) are provided with arc-shaped surfaces (10) that can contact the protrusions (7).

5. A fast isolating switch according to claim 1, characterized in that The limiting assembly comprises a limiting block (19) arranged in the outer shell (1), and the rotating disk (6) is provided with a boss (18) capable of abutting against the limiting block (19).

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