Connection clamping device for voltage transformer connection hole

Abstract

The present invention belongs to the technical field of connection clamping devices, and specifically relates to a connection clamping device for a voltage transformer connection hole; it comprises a connection plate clamping portion and a wire clamping portion; the connection plate clamping portion comprises a rear pressure plate and a front pressure plate, the right ends of the rear pressure plate and the front pressure plate are both connected with a connection end plate, the connection end plates are rotatably connected by a connecting pin shaft, the left ends of the rear pressure plate and the front pressure plate are both connected with a locking end plate, the two locking end plates are connected by a locking connection pair, and the rear pressure plate and the front pressure plate are both provided with a threading hole; the wire clamping portion comprises a top plate, a movable pressure plate and a fixed pressure plate, the top plate and the fixed pressure plate are both fixedly arranged on the connection plate clamping portion, a clamping bolt is threadedly connected to the middle part of the top plate, and the end of the clamping bolt is transfer-connected to the movable pressure plate; the present invention has a reasonable structure, is easy to operate and use, can effectively assist the connection of the voltage transformer connection hole, clamps the connection between the wire and the connection hole, and improves the connection quality and efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of connection and clamping devices, and in particular relates to a connection and clamping device for a voltage transformer connection hole. Background Art

[0002] Voltage transformers are similar to transformers and are instruments used to transform voltage. The purpose of voltage transformers to transform voltage is mainly to supply power to measuring instruments and relay protection devices, to measure the voltage, power and electric energy of the line, or to protect valuable equipment, motors and transformers in the line when a line fails. The function of voltage transformers is to transform high voltage into a standard secondary voltage of 100V or lower in proportion for use by protection, metering and instrumentation devices. At the same time, high voltage can be isolated from electrical workers. Voltage transformers are an indispensable electrical appliance for power transmission and power supply systems such as power plants and substations. Precision voltage transformers are instruments used in electrical test laboratories to expand the measurement limit and measure voltage, power and electric energy. Before being put into operation, voltage transformers must be tested and inspected in accordance with the items specified in the regulations, such as measuring polarity, connection group, shaking insulation, checking phase sequence, etc. When testing voltage transformers, it is necessary to connect the connection holes. The conventional method is to connect the wires directly to the connection holes on the connection plate, which is prone to poor contact and affects the test results. Therefore, it is necessary to provide a connection clamping device for the connection holes of voltage transformers. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a connection clamping device for a voltage transformer connection hole which has a reasonable structure, is easy to operate and can effectively assist in the connection of the voltage transformer connection hole to improve the connection quality and efficiency.

[0004] The objective of the present invention is achieved in this way: a connecting clamping device for a voltage transformer connecting hole comprises a connecting plate clamping portion and a wire clamping portion; the connecting plate clamping portion comprises a rear pressure plate and a front pressure plate, the right ends of the rear pressure plate and the front pressure plate are fixedly connected with a connecting end plate, the connecting end plates are rotatably connected via a connecting pin, the left ends of the rear pressure plate and the front pressure plate are fixedly connected with a locking end plate, the two locking end plates are connected via a locking connection pair, the rear pressure plate and the front pressure plate are both provided with a threading hole; the front and rear sides of the connecting plate clamping portion are both provided with the wire clamping portion, the wire clamping portion comprises a top plate, a movable pressure plate and a fixed pressure plate, the top plate and the fixed pressure plate are both fixedly arranged on the connecting plate clamping portion, a clamping bolt is threadedly connected to the middle portion of the top plate, and the end of the clamping bolt is rotatably connected to the movable pressure plate.

[0005] The right end of the rear pressure plate is fixedly connected to two of the connection end plates, and the right end of the front pressure plate is fixedly connected to one of the connection end plates.

[0006] A compression spring is arranged between the two locking end plates, and the compression spring is sleeved on the outside of the locking connection pair.

[0007] Grooves are arranged on the inner side surfaces of the rear pressing plate and the front pressing plate, and pads are arranged in the grooves.

[0008] A first connecting boss is provided in the middle of the top surface and the bottom surface of the top plate, and the clamping bolt passes through the first connecting boss and is threadedly connected thereto.

[0009] A second connecting boss is provided in the middle of the top surface of the movable pressing plate, and the clamping bolt is rotatably connected to the movable pressing plate via the second connecting boss.

[0010] The middle parts of the movable pressing plate and the fixed pressing plate are both arc-shaped concave plates.

[0011] A guide rod is arranged between the top plate and the fixed pressing plate, and the guide rod passes through the movable pressing plate and is slidably connected thereto.

[0012] The beneficial effects of the present invention are as follows: the connection clamping device for the connection hole of the voltage transformer of the present invention mainly comprises a connection plate clamping part and a wire clamping part, the connection plate clamping part comprises a front pressure plate and a rear pressure plate, the front pressure plate and the rear pressure plate are rotatably connected through a connection end plate, the connection plate of the voltage transformer is clamped between the front pressure plate and the rear pressure plate, it is clamped by a locking connection pair and a locking end plate, the connection hole on the connection plate of the voltage transformer is aligned with the threading hole; the wire is passed through the threading hole and the connection hole on the connection plate of the voltage transformer through the gap between the movable pressure plate and the fixed pressure plate, the clamping bolt is screwed to drive the movable pressure plate to move downward, and the wire is clamped; the connection clamping device for the connection hole of the voltage transformer of the present invention has a reasonable structure, is easy to operate and use, can effectively assist the connection of the connection hole of the voltage transformer, clamp the connection between the wire and the connection hole, and improve the connection quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of a connection clamping device for a voltage transformer connection hole of the present invention.

[0014] Figure 2 It is a left-side structural schematic diagram of a connection clamping device for a voltage transformer connection hole of the present invention.

[0015] Figure 3 It is a top view structural schematic diagram of a connection clamping device for a voltage transformer connection hole of the present invention.

[0016] In the figure: 1, threading hole 2, front pressure plate 3, locking end plate 4, locking connection pair 5, connection plate clamping part 6, wire clamping part 7, clamping bolt 8, first connection boss 9, top plate 10, second connection boss 11, guide rod 12, movable pressure plate 13, connection end plate 14, connection pin 15, fixed pressure plate 16, compression spring 17, pad 18, rear pressure plate. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Example 1

[0019] like Figure 1-3 As shown, a connection clamping device for a voltage transformer connection hole comprises a connection plate clamping portion 5 and a wire clamping portion 6; the connection plate clamping portion 5 comprises a rear pressure plate 18 and a front pressure plate 2, the right ends of the rear pressure plate 18 and the front pressure plate 2 are fixedly connected with a connection end plate 13, the connection end plates 13 are rotatably connected by a connection pin 14, the left ends of the rear pressure plate 18 and the front pressure plate 2 are fixedly connected with a locking end plate 3, and the two locking end plates 3 are connected by locking. The connecting plate 4 is connected with each other, and the rear pressure plate 18 and the front pressure plate 2 are both provided with a threading hole 1; the wire clamping part 6 is provided on the front and rear sides of the connecting plate clamping part 5, and the wire clamping part 6 includes a top plate 9, a movable pressure plate 12 and a fixed pressure plate 15, and the top plate 9 and the fixed pressure plate 15 are both fixedly arranged on the connecting plate clamping part 5, and a clamping bolt 7 is threadedly connected to the middle part of the top plate 9, and the end of the clamping bolt 7 is rotatably connected to the movable pressure plate 12.

[0020] The connection clamping device for the voltage transformer connection hole of the present invention mainly comprises a connection plate clamping part 5 and a wire clamping part 6, the connection plate clamping part 5 comprises a front pressure plate 2 and a rear pressure plate 18, the front pressure plate 2 and the rear pressure plate 18 are rotatably connected through a connection end plate 13, the connection plate of the voltage transformer is clamped between the front pressure plate 2 and the rear pressure plate 18, and it is clamped by a locking connection pair 4 and a locking end plate 3, the connection hole on the voltage transformer connection plate is aligned with the threading hole 1; the wire is passed through the threading hole 1 and the connection hole on the voltage transformer connection plate through the gap between the movable pressure plate 12 and the fixed pressure plate 15, the clamping bolt 7 is screwed, the movable pressure plate 12 is driven to move downward, and the wire is clamped; the connection clamping device for the voltage transformer connection hole of the present invention has a reasonable structure, is easy to operate and use, can effectively assist the connection of the voltage transformer connection hole, clamp the connection between the wire and the connection hole, and improve the connection quality and efficiency.

[0021] Example 2

[0022] like Figure 1-3As shown, a connection clamping device for a voltage transformer connection hole comprises a connection plate clamping portion 5 and a wire clamping portion 6; the connection plate clamping portion 5 comprises a rear pressure plate 18 and a front pressure plate 2, the right ends of the rear pressure plate 18 and the front pressure plate 2 are fixedly connected with a connection end plate 13, the connection end plates 13 are rotatably connected by a connection pin 14, the left ends of the rear pressure plate 18 and the front pressure plate 2 are fixedly connected with a locking end plate 3, and the two locking end plates 3 are connected by locking. The connecting plate 4 is connected with each other, and the rear pressure plate 18 and the front pressure plate 2 are both provided with a threading hole 1; the wire clamping part 6 is provided on the front and rear sides of the connecting plate clamping part 5, and the wire clamping part 6 includes a top plate 9, a movable pressure plate 12 and a fixed pressure plate 15, and the top plate 9 and the fixed pressure plate 15 are both fixedly arranged on the connecting plate clamping part 5, and a clamping bolt 7 is threadedly connected to the middle part of the top plate 9, and the end of the clamping bolt 7 is rotatably connected to the movable pressure plate 12.

[0023] For better effect, the right end of the rear pressure plate 18 is fixedly connected to two of the connecting end plates 13, and the right end of the front pressure plate 2 is fixedly connected to one of the connecting end plates 13. The two connecting end plates 13 on the rear pressure plate 18 are clamped on the outer side of the connecting end plate 13 on the front pressure plate 2, so that the rotational connection between the rear pressure plate 18 and the front pressure plate 2 is more stable.

[0024] For better effect, a compression spring 16 is arranged between the two locking end plates 3, and the compression spring 16 is sleeved on the outside of the locking connection pair 4. When the locking connection pair 4 is loosened, under the elastic force of the compression spring 16, the front pressure plate 2 and the rear pressure plate 18 are separated from each other, which facilitates the clamping operation of the connecting plate of the voltage transformer.

[0025] For better effect, grooves are provided on the inner sides of the rear pressure plate 18 and the front pressure plate 2, and pads 17 are provided in the grooves. By replacing the pads 17 of different sizes, voltage transformer connecting plates of different sizes can be effectively clamped.

[0026] For better effect, a first connecting boss 8 is provided in the middle of the top and bottom surfaces of the top plate 9, and the clamping bolt 7 passes through the first connecting boss 8 and is threadedly connected thereto, thereby lengthening the length of the threaded connection and effectively improving the stability of the threaded connection.

[0027] For better effect, a second connecting boss 10 is provided in the middle of the top surface of the movable pressure plate 12, and the clamping bolt 7 is rotatably connected to the movable pressure plate 12 via the second connecting boss 10, and the rotating connection is facilitated by the boss connection.

[0028] For better effect, the middle parts of the movable pressing plate 12 and the fixed pressing plate 15 are arc-shaped concave plates, which can stably and effectively clamp the wire.

[0029] For better effect, a guide rod 11 is arranged between the top plate 9 and the fixed pressure plate 15. The guide rod 11 passes through the movable pressure plate 12 and is slidably connected thereto. The guidance and limitation of the guide rod 11 improves the stability of the movable pressure plate 12 when moving and clamping the wire.

[0030] The connection clamping device for the voltage transformer connection hole of the present invention mainly comprises a connection plate clamping part 5 and a wire clamping part 6, the connection plate clamping part 5 comprises a front pressure plate 2 and a rear pressure plate 18, the front pressure plate 2 and the rear pressure plate 18 are rotatably connected through a connection end plate 13, the connection plate of the voltage transformer is clamped between the front pressure plate 2 and the rear pressure plate 18, and it is clamped by a locking connection pair 4 and a locking end plate 3, the connection hole on the voltage transformer connection plate is aligned with the threading hole 1; the wire is passed through the threading hole 1 and the connection hole on the voltage transformer connection plate through the gap between the movable pressure plate 12 and the fixed pressure plate 15, the clamping bolt 7 is screwed, the movable pressure plate 12 is driven to move downward, and the wire is clamped; the connection clamping device for the voltage transformer connection hole of the present invention has a reasonable structure, is easy to operate and use, can effectively assist the connection of the voltage transformer connection hole, clamp the connection between the wire and the connection hole, and improve the connection quality and efficiency.

Claims

1. A connection clamping device for a voltage transformer connection hole, characterized in that: It comprises a connecting plate clamping portion (5) and a wire clamping portion (6); the connecting plate clamping portion (5) comprises a rear pressing plate (18) and a front pressing plate (2); the right ends of the rear pressing plate (18) and the front pressing plate (2) are fixedly connected to a connecting end plate (13); the connecting end plates (13) are rotatably connected via a connecting pin (14); the left ends of the rear pressing plate (18) and the front pressing plate (2) are fixedly connected to a locking end plate (3); the two locking end plates (3) are connected via a locking connection pair (4); ... to the wire The plate (18) and the front pressure plate (2) are both provided with wire threading holes (1); the wire clamping part (6) is provided on both the front and rear sides of the connecting plate clamping part (5); the wire clamping part (6) comprises a top plate (9), a movable pressure plate (12) and a fixed pressure plate (15); the top plate (9) and the fixed pressure plate (15) are both fixedly arranged on the connecting plate clamping part (5); a clamping bolt (7) is threadedly connected to the middle part of the top plate (9); the end of the clamping bolt (7) is rotatably connected to the movable pressure plate (12); The right end of the rear pressing plate (18) is fixedly connected to two of the connecting end plates (13), and the right end of the front pressing plate (2) is fixedly connected to one of the connecting end plates (13); A compression spring (16) is provided between the two locking end plates (3), and the compression spring (16) is sleeved outside the locking connection pair (4).

2. The connection and clamping device for a voltage transformer connection hole according to claim 1, characterized in that: Grooves are provided on the inner side surfaces of the rear pressure plate (18) and the front pressure plate (2), and pads (17) are provided in the grooves.

3. The connection and clamping device for a voltage transformer connection hole according to claim 1, characterized in that: A first connecting boss (8) is provided in the middle of the top surface and the bottom surface of the top plate (9), and the clamping bolt (7) passes through the first connecting boss (8) and is threadedly connected thereto.

4. The connection and clamping device for a voltage transformer connection hole according to claim 1, characterized in that: A second connecting boss (10) is provided in the middle of the top surface of the movable pressing plate (12), and the clamping bolt (7) is rotatably connected to the movable pressing plate (12) via the second connecting boss (10).

5. The connection and clamping device for a voltage transformer connection hole according to claim 1, characterized in that: The middle parts of the movable pressing plate (12) and the fixed pressing plate (15) are both arc-shaped concave plates.

6. The connection and clamping device for a voltage transformer connection hole according to claim 1, characterized in that: A guide rod (11) is provided between the top plate (9) and the fixed pressing plate (15), and the guide rod (11) passes through the movable pressing plate (12) and is slidably connected thereto.

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