Storable multifunctional circuit breaker auxiliary contact alignment device

Abstract

The utility model discloses a storable multifunctional breaker auxiliary contact alignment device, which comprises a box body, a plug handle and an aviation plug which are arranged in the box body, and a first change-over switch, a second change-over switch, a buzzer and an indication panel which are arranged on the box body, a power supply is arranged in the box body, and a plurality of indication lamps are arranged on the indication panel. The indicating lamp is correspondingly connected with the contact pins in the aviation plug, auxiliary contacts connected with the contact pin independent circuit are arranged on the buzzer circuit in series, and the auxiliary contacts are connected when the contact pin independent circuit is connected. The effect of improving the measuring efficiency of the auxiliary contact of the circuit breaker is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of line alignment devices, in particular to a retractable multifunctional circuit breaker auxiliary contact line alignment device. Background Art

[0002] When the relay protection of a hydropower plant is renovated, the relay protection device and the secondary circuit wiring will be replaced, including the wiring from the auxiliary contacts of the circuit breaker to the terminal block. It is worth noting that the correct wiring of the auxiliary contacts of the circuit breaker plays a vital role in the logical judgment of the relay protection device. If the wiring is wrong, the protection device may refuse to operate or malfunction. At present, the protection department uses the ohm range (buzzer mode) of the multimeter to check the accuracy of the wiring, that is, one end of the multimeter probe is connected to the contact pin of the aviation base of the auxiliary contact of the circuit breaker, and the other end is connected to the terminal of the corresponding terminal block. If the multimeter beeps, it means that the wiring is correct. However, the transformation of plant power often involves dozens of panels, and one panel contains dozens of circuit breaker auxiliary nodes. In addition, the aviation base and the terminal block are not on the same horizontal plane, which makes it very inconvenient for one person to operate. It requires multiple people to operate at the same time. The joint work of the two is not only inefficient, but also wastes human resources. Therefore, it is urgent to invent a retractable multifunctional circuit breaker auxiliary contact alignment device to judge the correctness of the auxiliary node wiring in a more reliable and efficient way. Summary of the invention

[0003] The technical problem to be solved by the utility model is that the wiring efficiency between the auxiliary contacts of the circuit breaker and the terminal block is low.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a retractable multifunctional circuit breaker auxiliary contact alignment device, comprising a box body, a plug handle and an aviation plug arranged in the box body, and a first conversion switch, a second conversion switch, a buzzer and an indication panel installed on the box body, a power supply is arranged in the box body, a plurality of indicator lights are arranged on the indication panel, and the indicator lights are correspondingly connected to the contact pins in the aviation plug, an auxiliary contact connected to the independent circuit of the contact pin is arranged in series on the buzzer circuit, and the auxiliary contact is connected when the independent circuit of the contact pin is connected.

[0005] Preferably, a plurality of the aviation plugs are connected to the first conversion switch, the aviation plugs are arranged in parallel, and the aviation plugs include various specifications and models. A knob is provided in the first conversion switch, and the first conversion switch is connected to different aviation plugs when the knob is at different angles.

[0006] Preferably, a plurality of the plug handles are connected to the second conversion switch, the plug handles are arranged in parallel, and the plug handles include various specifications and models, the movable ends of the plug handles are detachably connected with pins, and a knob is provided in the second conversion switch, and the second conversion switch is connected to different plug handles when the knob is at different angles.

[0007] Preferably, the movable end of the plug handle is provided with connecting holes for inserting the ends of the plug pins in parallel, elastic limiting steel balls are provided in the connecting holes, and the top of the plug pin is provided with an arc groove for the elastic limiting steel column to be inserted into.

[0008] Preferably, a storage box is provided on the test line between the plug handle and the second conversion switch, and a storage box is provided on the test line between the aviation plug and the first conversion switch, and the test line is wound in the storage box.

[0009] Preferably, the storage box includes a disc-shaped hollow shell and a fixed column fixed on the axis of the shell, one end wall of the shell is connected to the inner wall of the box, a coil spring sheet is mounted on the fixed column, the outer wall of the coil spring sheet is connected to a winding skeleton, the test line is wound on the winding skeleton, openings for the test line to pass through are provided on both sides of the shell, and the connecting end of the test line and the plug handle or aviation plug is an extended end, and a clamping structure is provided on the opening of the shell corresponding to the extended end of the test line.

[0010] Preferably, the clamping structure includes a card slidably arranged perpendicular to the axial direction of the opening and a limiting rod rotatably connected to one side of the card, one side of the limiting rod is provided with a protrusion that cooperates with the groove at the bottom of the card side wall, and after the protrusion is inserted into the groove, the bottom end of the card is located in the opening.

[0011] The utility model provides a retractable multifunctional circuit breaker auxiliary contact alignment device. By arranging a plurality of aviation plugs, an adapted aviation plug is selected according to the model of an aviation base to be detected, and the selected aviation plug is connected to the circuit by rotating a first conversion switch. After a plug handle is selected in the same way, the plug handle is connected to the circuit to be tested, and an indicator light corresponding to each contact pin on an indication panel is used to display whether the contact pin is connected normally. After all the contact pins are connected normally, all circuits are connected, a buzzer is powered on, and the wiring of the auxiliary contacts of the circuit breaker to be tested is correct. The wiring detection of batches of auxiliary contacts can be realized at one time, thereby improving the efficiency of wiring detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0013] Figure 1 It is a schematic diagram of the internal structure of an embodiment of the utility model.

[0014] Figure 2 It is the front view of the embodiment of the utility model.

[0015] Figure 3 It is a top view of the internal structure of an embodiment of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the plug handle in the embodiment of the utility model.

[0017] Figure 5 It is a schematic diagram of the structure of the plug pin in the embodiment of the utility model.

[0018] Figure 6 It is a circuit diagram of the buzzer connection in the embodiment of the utility model.

[0019] Figure 7 Schematic diagram of the internal structure of the storage box in the embodiment of the utility model.

[0020] Figure 8 It is a structural schematic diagram of the clamping structure at the outlet of the storage box in the embodiment of the utility model.

[0021] In the figure: 1. Box body; 2. First conversion switch; 3. Second conversion switch; 4. Buzzer; 5. Indicator panel; 6. Storage box; 7. Plug handle; 8. Aviation plug; 9. Pin. DETAILED DESCRIPTION

[0022] like Figure 1-8 As shown, the utility model proposes a retractable multifunctional circuit breaker auxiliary contact alignment device, comprising a box body 1, a plug handle 7 and an aviation plug 8 arranged in the box body 1, and a first conversion switch 2, a second conversion switch 3, a buzzer 4 and an indication panel 5 installed on the box body 1. A power supply is arranged in the box body 1, a plurality of indicator lights are arranged on the indication panel 5, and the indicator lights are correspondingly connected to the contact pins in the aviation plug 8. Auxiliary contacts connected to the independent circuit of the contact pins are arranged in series on the circuit of the buzzer 4, and the auxiliary contacts are connected when the independent circuit of the contact pins is connected.

[0023] The aviation plug 8 is used to connect the aviation base, and the plug handle 7 can be connected to multiple auxiliary contacts of the circuit breaker required for testing at one time to achieve batch testing. When testing the wiring, select the corresponding model of the aviation plug 8 according to the model of the aviation base to be tested. The models of the aviation plug 8 include three different specifications of Schneider, Siemens, and ABB, which can correspond to the commonly used aviation bases. After selecting the model, adjust the aviation plug 8 connected to the circuit by turning the first conversion switch 2, and then insert the plug handle 7 into the auxiliary contact of the circuit breaker. When the wiring of a single contact pin of the aviation base is correct, the indicator light corresponding to the contact pin in the indicator panel 5 lights up. When the contact points corresponding to all the contact pins of the aviation base are correctly wired, the buzzer 4 starts, and the wiring of the auxiliary contacts of the circuit breaker is correct.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 6 The first conversion switch 2 is connected to a plurality of aviation plugs 8, which are arranged in parallel and include various specifications and models. A knob is arranged inside the first conversion switch 2, and the first conversion switch 2 is connected to different aviation plugs 8 when the knob is at different angles.

[0025] A connection disk is rotatably arranged inside the first conversion switch 2, and a connecting piece is arranged on the connection disk. Three connecting posts are arranged on the first conversion switch 2, and the three connecting posts are respectively connected to three types of aviation plugs 8. By rotating the connection disk, the connecting piece is driven to rotate, and the connecting piece is connected to different connecting posts during the rotation process, thereby realizing the connection of different aviation plugs 8 to the circuit.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 6 The second conversion switch 3 is connected to a plurality of the plug handles 7, which are arranged in parallel and include various specifications and models. The movable end of the plug handle 7 is detachably connected to a pin 9. A knob is arranged inside the second conversion switch 3. When the knob is at different angles, the second conversion switch 3 is connected to different plug handles 7.

[0027] The plug handle 7 includes three different types of pins, including a universal combination screw straight-through terminal, a universal combination screw disconnect test terminal and a one-input and two-output knife switch disconnect straight-plug spring terminal. The internal structure of the second conversion switch 3 is the same as the internal structure of the first conversion switch 2. By turning the knob, the plug handle 7 with different pins 9 is selected to connect to the circuit.

[0028] like Figure 4 and Figure 5 The movable end of the plug handle 7 is arranged side by side with connecting holes for the end of the plug pin 9 to be inserted, and an elastic limiting steel ball is arranged in the connecting hole. The top of the plug pin 9 is provided with an arc groove for the elastic limiting steel column to be inserted.

[0029] The number of the pins 9 in the plug handle 7 and the arrangement of the pins 9 can be selected according to the number and arrangement of the terminals to be measured, so as to improve the efficiency of the measurement.

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 7 A storage box 6 is provided on the test line between the plug handle 7 and the second conversion switch 3 , and a storage box 6 is provided on the test line between the aviation plug 8 and the first conversion switch 2 , and the test line is wound in the storage box 6 .

[0031] The connection end of the test line with the first conversion switch 2 or the second conversion switch 3 is a fixed end, and the end of the test line connected to the plug handle 7 or the aviation plug 8 is a movable end, and the movable end is wound in the storage box 6.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 7 The storage box 6 includes a disc-shaped hollow shell and a fixed column fixed to the axis of the shell, one end wall of the shell is connected to the inner wall of the box body 1, a spiral spring sheet is mounted on the fixed column, the outer side wall of the spiral spring sheet is connected to the winding skeleton, the test line is wound on the winding skeleton, both sides of the shell are provided with openings for the test line to pass through, and the connection end of the test line and the plug handle 7 or the aviation plug 8 is an extended end, and a clamping structure is provided on the opening of the shell corresponding to the extended end of the test line.

[0033] The fixed end of the test line is fixed on the winding skeleton, and the movable end is wound along the winding skeleton. The test line is pulled outward through the movable end of the test line. The test line drives the winding skeleton to rotate during the pulling process, thereby causing the spiral spring sheet to deform. After the movable end of the test line is clamped by the clamping structure, the test line can be used. After the test line is used, the clamping structure is released, and the winding skeleton is driven to rotate through the elastic reset of the spiral spring sheet to automatically reel in the test line.

[0034] like Figure 8 The clamping structure includes a card slidably arranged perpendicular to the opening axis and a limit rod rotatably connected to one side of the card, one side of the limit rod is provided with a protrusion matched with the groove at the bottom of the card side wall, and the bottom end of the card is located in the opening after the protrusion is clamped in the groove.

[0035] A slide is provided in the shell of the storage box 6, and the card is slidably arranged in the slide. The slide is perpendicular to the opening of the shell. First, the limit rod is rotated to make the protrusion on the limit rod rotate to the side away from the card, and then the card is pressed down to make the card clamp the test line. Then the limit rod is rotated. At this time, the protrusion on the limit rod just enters the groove of the side wall of the card to achieve limit cooperation. The card cannot continue to move in the slide, thereby achieving clamping of the test line.

Claims

1. A retractable multifunctional circuit breaker auxiliary contact alignment device, characterized in that: The invention comprises a box (1), a plug handle (7) and an aviation plug (8) arranged in the box (1), and a first conversion switch (2), a second conversion switch (3), a buzzer (4) and an indication panel (5) installed on the box (1). A power supply is arranged in the box (1), a plurality of indicator lights are arranged on the indication panel (5), and the indicator lights are correspondingly connected to the contact pins in the aviation plug (8). An auxiliary contact connected to the independent circuit of the contact pin is arranged in series on the circuit of the buzzer (4), and the auxiliary contact is connected when the independent circuit of the contact pin is connected.

2. A retractable multifunctional circuit breaker auxiliary contact alignment device as claimed in claim 1, characterized in that: The first conversion switch (2) is connected to a plurality of the aviation plugs (8), the aviation plugs (8) are arranged in parallel, and the aviation plugs (8) include a plurality of specifications and models. A knob is arranged inside the first conversion switch (2), and when the knob is at different angles, the first conversion switch (2) is connected to different aviation plugs (8).

3. A retractable multifunctional circuit breaker auxiliary contact alignment device as claimed in claim 1, characterized in that: The second conversion switch (3) is connected to a plurality of the plug handles (7), the plug handles (7) are arranged in parallel, and the plug handles (7) include a plurality of specifications and models, the movable end of the plug handle (7) is detachably connected to a plug pin (9), and a knob is arranged inside the second conversion switch (3), and the second conversion switch (3) is connected to different plug handles (7) when the knob is at different angles.

4. A retractable multifunctional circuit breaker auxiliary contact alignment device as claimed in claim 3, characterized in that: The movable end of the plug handle (7) is provided with connecting holes arranged side by side for the end of the plug pin (9) to be inserted, and an elastic limiting steel ball is arranged in the connecting hole. The top of the plug pin (9) is provided with an arc groove for the elastic limiting steel column to be inserted.

5. A retractable multifunctional circuit breaker auxiliary contact alignment device as claimed in any one of claims 1 to 4, characterized in that: A storage box (6) is provided on the test line between the plug handle (7) and the second conversion switch (3), and a storage box (6) is provided on the test line between the aviation plug (8) and the first conversion switch (2), and the test line is wound inside the storage box (6).

6. A retractable multifunctional circuit breaker auxiliary contact alignment device as claimed in claim 5, characterized in that: The storage box (6) comprises a disc-shaped hollow shell and a fixed column fixed on the axis of the shell, one end wall of the shell is connected to the inner wall of the box body (1), a spiral spring sheet is mounted on the fixed column, the outer side wall of the spiral spring sheet is connected to a winding frame, the test line is wound on the winding frame, openings for the test line to pass through are provided on both sides of the shell, and the connection end of the test line and the plug handle (7) or the aviation plug (8) is an extended end, and a clamping structure is provided on the opening of the shell corresponding to the extended end of the test line.

7. A retractable multifunctional circuit breaker auxiliary contact alignment device as claimed in claim 6, characterized in that: The clamping structure includes a card slidably arranged perpendicular to the axial direction of the opening and a limiting rod rotatably connected to one side of the card. A protrusion is arranged on one side of the limiting rod to cooperate with the groove at the bottom of the card side wall, and the bottom end of the card is located in the opening after the protrusion is clamped in the groove.

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