CN205263292U - Mutual -inductor is action bars for check -up - Google Patents

Abstract

The utility model discloses an operating rod for transformer calibration, which comprises an outer insulating rod, an operating handle, an alligator pliers and an electroscope device, wherein: the outer insulating rod is provided with an inner insulating rod, and the upper end of the outer insulating rod The crocodile pliers are movable inside, and the inner end of the crocodile pliers is movably connected with the inner insulating rod; the crocodile pliers include spring I, a driving block, a connecting rod and pliers, one end of the connecting rod is fixedly connected to the driving block, the other end is connected to the pliers, and the pliers are connected Two test lines, the spring I is set on the connecting rod, and the inner wall of the outer insulating rod is provided with a clamping block used in conjunction with the spring I; the upper end of the inner insulating rod is matched with the driving block and installed in contact. The utility model has the advantages of simple operation, convenient use, safety, reliability and high efficiency, and is convenient for calibration personnel to carry out operations on the transformer in the high-voltage cabinet. The utility model is widely applicable to the field of electric power.

Description

An operating rod for transformer calibration

technical field

The utility model belongs to the technical field of measuring tools, relates to the field of calibration operating rods, in particular to an operating rod for transformer calibration.

Background technique

In substations of various voltage levels, most of the transformers are installed in the switchgear of the high-voltage room. There are many types of equipment in the switchgear, the installation is compact, and the space is small. The position of the transformer is mostly installed inside the switchgear. When measuring, protecting and other operators need to clamp the primary side terminal button of the transformer with a clip when verifying the error, polarity, and volt-ampere characteristics of the transformer, they can carry out the calibration work. At present, when the transformer is calibrated, most people drill into the inside of the cabinet and clamp the test line with a clip. This is easy to cause personal injury and equipment damage. Not only is the work efficiency low, but also the safety risk is high.

Contents of the invention

The purpose of the utility model is to provide an operating rod for transformer calibration with simple structure, convenient use, high working efficiency and high safety factor in view of the shortcomings of the existing operating rod.

In order to achieve the above object, the utility model adopts the following technical solutions:

An operating rod for transformer calibration, comprising an outer insulating rod, an operating handle, an alligator pliers and an electroscope device, wherein: the outer insulating rod is provided with an inner insulating rod, and the upper end of the outer insulating rod is movably installed inside the crocodile pliers , the inner end of the crocodile pliers is flexibly connected to the inner insulation rod; the crocodile pliers includes spring I, a driving block, a connecting rod and pliers, one end of the connecting rod is fixedly connected to the driving block, and the other end is connected to the pliers, and the pliers are connected to two test lines, The spring I is arranged on the connecting rod, and the inner wall of the outer insulating rod is provided with a locking block used in conjunction with the spring I; the upper end of the inner insulating rod is matched with the driving block and installed in contact.

Further, the inner insulating rod is provided with a spring II and a stopper, and the inner wall of the outer insulating rod is provided with a bayonet for cooperating with the spring II.

Furthermore, the upper end of the inner insulating rod is provided with rolling wheels.

Furthermore, the outer insulating rod is "L" shaped.

Furthermore, the longitudinal section of the driving block is triangular.

Further, the two test wires are connected with a quick-connect port, through which a quick electrical connection with the electroscope device can be realized.

Furthermore, said spring I and spring II are pressure springs.

Further, the lower end of the inner insulating rod is provided with threads, and the lower end of the inner insulating rod is connected and fixed with the operating handle through the threads.

Furthermore, the lower end of the outer insulating rod is connected to the extension rod of the outer insulating rod through threads, the lower end of the inner insulating rod is connected to the extension rod of the inner insulation rod through threads, and the lower end of the extension rod of the inner insulation is connected to the operating handle through threads.

working principle:

When it is necessary to measure the side end button of the transformer in the high-voltage cabinet, the staff first holds the insulating outer rod with one hand, and holds the handle tightly with the other hand, and extends the operating rod into the transformer in the high-voltage cabinet to touch the primary wiring bolt of the transformer. At this time, push the handle upwards, the roller will push the triangular driving block to the opening direction, the pliers will stretch out, and under the action of the small spring, the pliers will be opened to lock the bolt, so that the clip and the bolt are in good contact. At this time, release the handle, Under the action of spring II, the inner insulating rod moves downward, and the driving block loses pressure. Then, under the reaction force of strong spring I, the pliers will automatically shrink and firmly clamp the bolt, and the next detection step can be completed.

The beneficial effects of the utility model:

The utility model has the advantages of simple operation, convenient use, safety, reliability and high efficiency, and is convenient for calibration personnel to carry out operations on the transformer in the high-voltage cabinet. The utility model is widely applicable to the field of electric power.

Description of drawings

Accompanying drawing 1 is the structure schematic diagram of the operating rod used for transformer verification of the embodiment.

Marks in the picture: 1-operating handle, 2-outer insulating rod, 21-quick connection port, 22-block, 23-bayonet, 24-spring II, 3-inner insulating rod, 31-rolling wheel, 32-stop block, 4-test line, 5-pliers, 51-spring I, 52-drive block.

detailed description

Below with reference to accompanying drawing, the specific embodiment of the present utility model is described in further detail.

Example 1:

As shown in Figure 1, an operating rod for transformer calibration includes an outer insulating rod 2, an operating handle 1, an alligator clamp and an electroscope device, and is characterized in that: the outer insulating rod 2 is provided with an inner insulating rod 3. Alligator pliers are movable inside the upper end of the outer insulating rod 2, and the inner end of the crocodile pliers is movably connected with the inner insulating rod 3; the crocodile pliers include spring I 51, driving block 52, connecting rod and pliers 5, and one end of the connecting rod is fixedly connected The drive block 52, the other end is connected with the pliers 5, the pliers 5 are connected with two test lines 4, the spring I51 is arranged on the connecting rod, and the inner wall of the outer insulating rod 2 is provided with a block 22 used in conjunction with the spring I51; the inner insulation The upper end of the rod 3 is fitted in contact with the drive block 52 .

Further, the inner insulating rod 3 is provided with a spring II 24 and a stopper 32 , and the inner wall of the outer insulating rod 2 is provided with a bayonet 23 used in conjunction with the spring II 24 .

Furthermore, the upper end of the inner insulating rod 3 is provided with a rolling wheel 31 .

Furthermore, the outer insulating rod 2 is "L" shaped.

Furthermore, the longitudinal section of the driving block 52 is triangular.

Furthermore, the two test lines 4 are connected with a quick connection port 21, through which a quick electrical connection with the electroscope device can be realized.

Furthermore, said spring I51 and spring II24 are compression springs.

Example 2:

As shown in FIG. 1 , a further improvement on the basis of Example 1, the lower end of the inner insulating rod 3 is provided with threads, and the lower end of the inner insulating rod 3 is connected and fixed to the operating handle 1 through threads.

Example 3:

As shown in Figure 1, on the basis of Example 2, a further improvement scheme is provided. The lower end of the outer insulating rod 2 is connected to the extension rod of the outer insulating rod 2 through threads, and the lower end of the inner insulating rod 3 is connected to the extension rod of the inner insulation rod through threads. The lower end of the insulating extension rod is connected with the operating handle 1 through threads.

When it is necessary to measure the side end button of the transformer in the high-voltage cabinet, the staff first holds the insulating outer rod with one hand, and holds the handle tightly with the other hand, and extends the operating rod into the transformer in the high-voltage cabinet to touch the primary wiring bolt of the transformer. At this time, push the handle upwards, the roller will push the triangular driving block to the opening direction, the pliers will stretch out, and under the action of the small spring, the pliers will be opened to lock the bolt, so that the clip and the bolt are in good contact. At this time, release the handle, Under the action of spring II, the inner insulating rod moves downward, and the driving block loses pressure. Then, under the reaction force of strong spring I, the pliers will automatically shrink and firmly clamp the bolt, and the next detection step can be completed.

The above-mentioned embodiments are only one of the more preferred specific modes of the utility model, and the usual changes and replacements performed by those skilled in the art within the scope of the technical solution of the utility model shall be included in the protection scope of the utility model.

Claims (9)

1. a transducer check action bars, comprise external insulation bar (2), operating handle (1), alligator forceps and electroscope device, it is characterized in that: in described external insulation bar (2), be provided with interior insulating bar (3), the movable alligator forceps of installing in external insulation bar (2) upper end, alligator forceps is inner to be flexibly connected with interior insulating bar (3); Described alligator forceps comprises spring I (51), drive block (52), connecting rod and pliers (5), connecting rod one end is fixedly connected with drive block (52), the other end is connected with pliers (5), pliers (5) connects two p-wires (4), spring I (51) is located on connecting rod, and external insulation bar (2) inwall is provided with the fixture block (22) being used in conjunction with spring I (51); Described interior insulating bar (3) upper end coordinates and contacts installation with drive block (52).

2. transducer check action bars according to claim 1, is characterized in that: described interior insulating bar (3) is provided with spring II (24) and block (32), and external insulation bar (2) inwall is provided with the bayonet socket (23) being used in conjunction with spring II (24).

3. transducer check action bars according to claim 1 and 2, is characterized in that: described interior insulating bar (3) upper end is provided with scroll wheel (31).

4. transducer check action bars according to claim 1, is characterized in that: described external insulation bar (2) is " L " shape.

5. transducer check action bars according to claim 1, is characterized in that: the longitudinal cross-section of described drive block (52) is triangle.

6. transducer check action bars according to claim 1, is characterized in that: described two p-wires (4) are connected with and connect soon port (21), can be realized fast and being electrically connected with electroscope device by quick port.

7. transducer check action bars according to claim 1, is characterized in that: described spring I (51) and spring II (24) are compression spring.

8. transducer check action bars according to claim 1, is characterized in that: described interior insulating bar (3) lower end is provided with screw thread, and interior insulating bar (3) lower end is connected and fixed by screw thread and operating handle (1).

9. transducer check action bars according to claim 1, it is characterized in that: described external insulation bar (2) lower end is connected with external insulation bar (2) extension bar by screw thread, interior insulating bar (3) lower end is connected with interior insulated lengthened bar by screw thread, and interior insulated lengthened bar lower end is connected with operating handle (1) by screw thread.