CN204303718U - Switch isolation ground connection linkage - Google Patents

Abstract

The utility model relates to a switch isolation grounding link mechanism, comprising a fixed plate, a mechanism panel and an interlocking plate, the fixed plate is connected with the mechanism panel to form a rectangular shell, and the interlocking plate is arranged in the rectangular shell and can be placed on the mechanism panel Move left and right, the interlocking plate fits the mechanism panel, the interlocking plate is provided with a guide groove, and the mechanism panel is provided with a protrusion inserted in the guiding groove to connect the mechanism panel and the interlocking plate, and the two sides of the interlocking plate Position-limiting mechanisms are respectively provided to limit the positions, and the two sides of the interlocking plate are provided with locks adapted to the position-limiting mechanisms. The utility model has the characteristics of simple structure, convenient use, high safety and strong practicability.

Description

Switch Isolation Ground Link Mechanism

technical field

The utility model relates to the technical field of switchgear, in particular to a switch isolation grounding link mechanism.

Background technique

The switch isolation grounding link mechanism is an electrical appliance that not only has the function of manual switching, but also can automatically protect against voltage loss, undervoltage, overload and short circuit. It can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, etc., and can automatically cut off the circuit when they are seriously overloaded or short-circuited or under-voltage. Its function is equivalent to the fuse switch and overvoltage Combinations of underheating relays, etc.

However, the existing switch isolation grounding link mechanism has complex structure, cumbersome operation and poor protection performance, which is not conducive to practical application.

Contents of the invention

In view of the above problems, the purpose of this utility model is to provide a switch isolation grounding link mechanism with simple structure, convenient use, high safety and strong practicability.

Realize the technical scheme of the utility model as follows:

The switch isolation grounding link mechanism includes a fixed plate, a mechanism panel and an interlocking plate. The fixed plate is connected with the mechanism panel to form a rectangular housing. The interlocking plate is arranged in the rectangular housing and can move left and right on the mechanism panel. The lock plate fits with the mechanism panel, the interlock plate is provided with a guide groove, and the mechanism panel is provided with a protrusion inserted in the guide groove for connecting the mechanism panel and the interlock plate, and the two sides of the interlock plate are respectively provided with opposite It is a position-limiting mechanism, and both sides of the interlocking plate are provided with locks that are compatible with the position-limiting mechanism.

With the above scheme, the left and right movement of the interlock plate can disconnect the circuit and stop using the electrical appliance. When the circuit is in normal use, the interlock plate is firmly locked by the limit mechanism, and the lock between the limit mechanism and the interlock plate Can be clamped to each other to prevent displacement. When serious overload, short circuit or undervoltage occurs in the circuit, the interlock plate can be moved left or right by operating the limit mechanism, so as to disconnect the circuit and play a protective role; the guide groove not only plays a connecting role , can also limit the displacement of the interlocking plate, prevent the interlocking plate from moving out of the mechanism panel, and can work within an effective moving range. The structure is simple, easy to use, high in safety, and strong in practicability.

The position-limiting mechanism includes a rotatable interlocking lever arranged on the fixed plate, at least one arc-shaped cam is arranged on the interlocking lever, a guide plate installed on the fixed plate is arranged under the interlocking lever, and a guide plate is arranged below the cam on the guide plate. There is a door hanging column that passes through the guide plate and the fixing plate and extends outward. The door hanging column and the guide plate are connected by springs and can move up and down. The guide plate is also equipped with an interlocking plate fixed on the door hanging column. The limit rod for limiting has the advantage that the effect of changing the diameter can be achieved when the arc-shaped cam rotates, so that the door hanging column can move up and down. The limit rod cooperates with the lock of the interlock plate to fix the interlock plate. The bit bar can be separated from the interlock plate.

The limit rod is parallel to the interlock rod, and the guide plate is provided with a first chute for the up and down movement of the limit rod. One end of the limit rod extends to the mechanism panel, and the mechanism panel is provided with a Corresponding to the second chute, the limit rod is also connected with a limit plate, and the limit plate is arranged on the outer surface of the mechanism panel. The advantage is that the connection between the limit plate and the limit rod can be used to clamp the mechanism panel, which can ensure The limiting function of the limiting rod prevents the limiting rod from breaking away from the second chute, thereby losing the effect of locking the interlocking plate.

The advantage is that in normal use, the interlock plate is located in the middle of the mechanism panel, and the door hanging post bears against the cam. When it is necessary to cut off the circuit, turn the interlocking lever, and the cam will rotate accordingly. Since the cam is an arc-shaped structure, the door hanging post will Press down, at this time, the limit rod moves down along the first chute and the second chute when the door hanging column is pressed down, so that the limit rod is separated from the lock port of the interlock plate, and the interlock plate is locked after separation. It can move to the left or right to cut off the circuit and realize the function of disconnection; otherwise, it can realize the function of closing, with simple structure and convenient use.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of interlocking board;

Fig. 3 is the right view of Fig. 1;

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

As shown in Figures 1 to 3, the switch isolation grounding linkage mechanism includes a fixed plate 1, a mechanism panel 2 and an interlock plate 3, the fixed plate 1 is connected to the mechanism panel 2 to form a rectangular housing 4, and the interlock plate 3 is set In the rectangular housing 4 and can move left and right on the mechanism panel 2, the interlock plate 3 fits the mechanism panel 2, the interlock plate 3 is provided with a guide groove 31, and the mechanism panel 2 is provided with a guide groove 31 The inside is used to connect the protruding head 11 of the mechanism panel 2 and the interlocking plate 3. The two sides of the interlocking plate 3 are respectively provided with a limiting mechanism 5 for limiting it. Compatible lock 32.

The position-limiting mechanism 5 includes a rotatable interlocking lever 51 arranged on the fixed plate 1, at least one arc-shaped cam 52 is arranged on the interlocking lever 51, and a guide installed on the fixed plate 1 is arranged below the interlocking lever 51. Plate 53, below the cam 52 is provided with a door hanging post 54 that passes through the guide plate 51 and the fixed plate 1 and extends outwards. The door hanging post 54 and the guide plate 53 are connected by a spring 67 and can move up and down. Also be provided with the limit rod 55 that is fixed on the door hanging column 54 and interlocking plate 3 is limited, the advantage is that the effect of changing the diameter can be realized when the arc cam rotates, thereby the door hanging column can be moved up and down, the limit rod and The locking opening of the interlocking plate fixes the interlocking plate, and the interlocking plate can be separated from it by moving the limit rod.

The stop bar 55 is parallel to the interlock bar 51, the guide plate 53 is provided with a first chute 531 for the stop bar 55 to move up and down, one end of the stop bar 55 extends to the mechanism panel 2, and the mechanism panel 2 A second chute 12 corresponding to the first chute 531 is provided, and a limit plate 56 is also connected to the limit rod 55. The limit plate 56 is arranged on the outer surface of the mechanism panel 2. The advantage is that the limit plate and the limit plate The connection of the stop bar can be used to clamp the mechanism panel, which can ensure the limit function of the stop bar and prevent the stop bar from breaking away from the second chute, thus losing the function of locking the interlocking plate.

The advantage is that in normal use, the interlock plate is located in the middle of the mechanism panel, and the door hanging post bears against the cam. When it is necessary to cut off the circuit, turn the interlocking lever, and the cam will rotate accordingly. Since the cam is an arc-shaped structure, the door hanging post will Press down, at this time, the limit rod moves down along the first chute and the second chute when the door hanging column is pressed down, so that the limit rod is separated from the lock port of the interlock plate, and the interlock plate is locked after separation. It can move to the left or right to cut off the circuit and realize the function of disconnection; otherwise, it can realize the function of closing, with simple structure and convenient use.

Operation instruction: By rotating the interlocking lever, that is, the isolating switch is separated, the interlocking plate is moved to the left, the operating handle is inserted into the grounding hole and rotated, the grounding is closed, and the door hanging column moves down under the action of the cam, and the lower door can be opened;

When the upper and lower doors are hung, the operating handle is inserted into the grounding hole and rotated, the grounding is separated, the door hanging column moves up under the action of the cam, the lower door cannot be opened, the interlock plate is moved to the right, the operating handle is inserted into the isolation hole and rotated, the isolation is closed, and then Close the switch to isolate the ground linkage.

Claims (3)

1. The switch isolation grounding link mechanism includes a fixed plate, a mechanism panel and an interlocking plate. It is characterized in that: the fixed plate is connected with the mechanism panel to form a rectangular shell, and the interlocking plate is arranged in the rectangular shell and can be installed in the mechanism. The panel moves left and right, the interlocking plate fits the mechanism panel, the interlocking plate is provided with a guide groove, and the mechanism panel is provided with a protrusion inserted in the guiding groove for connecting the mechanism panel and the interlocking plate, and the interlocking plate The two sides are respectively provided with a limit mechanism for limiting the position, and the two sides of the interlocking plate are provided with locks suitable for the limit mechanism. 2. The switch isolating and grounding link mechanism according to claim 1, characterized in that: the limit mechanism includes a rotatable interlocking rod arranged on the fixed plate, at least one arc-shaped cam is arranged on the interlocking rod, A guide plate installed on the fixed plate is arranged under the interlocking rod, and a door hanging column which passes through the guide plate and the fixed plate and extends outward is arranged under the cam on the guide plate. The door hanging column and the guide plate are connected by springs and It can move up and down, and the guide plate is also provided with a limit bar fixed on the door hanging column to limit the interlock plate. 3. The switch isolation and grounding link mechanism according to claim 2, characterized in that: the limit rod is parallel to the interlock rod, and the guide plate is provided with a first chute for the limit rod to move up and down. One end of the position rod extends to the mechanism panel, and the mechanism panel is provided with a second chute corresponding to the first chute, and the limit rod is also connected with a limit plate, which is arranged on the outer surface of the mechanism panel.