CN207717345U - Breaker mechanic property examination Special wiring bar - Google Patents

Abstract

The utility model relates to a special connecting rod for testing the mechanical characteristics of a circuit breaker, which comprises an upper connecting rod, a middle connecting rod and a lower connecting rod which are sequentially connected. A clip is arranged on the upper end of the upper connecting rod; The lower end of the terminal is provided with a lower connecting part, and the upper part of the middle connecting rod and the upper part of the lower connecting rod are provided with an upper connecting part that matches the lower connecting end, and a wire is arranged between the upper connecting part and the lower connecting part in the middle connecting rod , there is a wire between the lower connection part and the clip located in the upper terminal rod; the utility model uses the internally connected terminal rod to replace the original test line, and only needs to connect the upper terminal rod, the middle terminal rod, and the lower terminal rod It can be connected to realize the purpose of installing test wiring while erecting the pole. It is very convenient to use and put away. The mutual wire connection inside the connecting pole can replace the test line to connect the circuit breaker. The connection is stable and will not fall off.

Description

Special wiring rod for circuit breaker mechanical characteristic test

technical field

The utility model belongs to the field of electric equipment, in particular to a special connecting rod for testing the mechanical characteristics of a circuit breaker.

Background technique

The mechanical characteristic test of the circuit breaker is a must-do item in the circuit breaker test. Before the test, the test wiring needs to be connected to both ends of the circuit breaker port. The wiring position of the 35kV and above outdoor open circuit breaker is relatively high, and a high-altitude wiring pole is required. The original wiring method is: the test wiring is fixed to the upper and lower wiring boards of the circuit breaker through the top clamp of the wiring rod. The external test wiring is easy to fall off, and there is a safety risk if the adjacent interval is charged. At the same time, the test wiring is long, and the wiring and take-up are cumbersome, which affects work efficiency.

Utility model content

The technical problem to be solved by the utility model is to provide a special terminal rod for testing the mechanical characteristics of the circuit breaker, which is easy to use and not easy to fall off, with the wires built in the terminal rod.

The technical solution adopted by the utility model is: a special terminal rod for testing the mechanical characteristics of a circuit breaker, which includes an upper terminal rod, a middle terminal rod and a lower terminal rod connected in sequence, and a clip is arranged on the upper end of the upper terminal rod; The lower end of the connecting rod and the middle connecting rod are provided with a lower connecting part, and the upper part of the connecting rod in the middle part and the lower connecting rod is provided with an upper connecting part matched with the lower connecting end, and the upper connecting part in the middle connecting rod is connected with the lower Wires are arranged between the parts, and wires are arranged between the lower connection part located in the upper connecting rod and the clip.

The upper connection part includes an upper connection block, a guide rod arranged at the upper end of the upper connection block, a ball spring arranged at the top end of the guide rod, and a lower terminal lug arranged at the lower end of the upper connection block.

The lower connecting part includes a lower connecting block, a connecting hole arranged at the lower end of the lower connecting block, a card slot arranged in the connecting hole for engaging with the ball spring, and an upper terminal lug arranged at the upper end of the lower connecting block; it is located in the middle connecting rod The upper connection part and the lower connection part are connected through the upper connection lug and the lower connection lug wire, and the lower connection part in the upper terminal rod is connected with the clip wire through the lower connection lug.

The lower ends of the upper connecting rod and the middle connecting rod are all provided with external threads, and the upper ends of the middle connecting rod and the lower connecting rod are all provided with internal threads, and the upper connecting rod, the middle connecting rod and the lower connecting rod are all connected by threads.

The lower ends of the upper connecting rod and the middle connecting rod are both provided with a lower sealing part, and the upper ends of the middle connecting rod and the lower connecting rod are respectively provided with an upper sealing part matched with the lower sealing part.

The lower sealing part includes an inverted bowl-shaped rubber sleeve arranged at the lower end of the upper terminal pole or the middle terminal pole, a first gasket and a second gasket arranged inside the rubber sleeve and inclined upwards, and respectively arranged on the first The gasket and the first sealing ring on the inner and outer sides of the second gasket.

The upper sealing part includes a sealing sleeve arranged on the upper end of the middle connecting rod or the lower connecting rod, a third sealing gasket and a fourth sealing gasket arranged obliquely downward on the outer wall of the sealing casing, and respectively arranged on the third sealing gasket and the fourth sealing gasket. A second seal ring on both the inside and outside of the gasket.

The upper sealing part and the lower sealing part are connected by a first sealing gasket, a second sealing gasket, a third sealing gasket and a fourth sealing gasket.

An equipment connecting line is arranged on the lower connecting block in the middle terminal rod, one end of the equipment connecting wire is fixedly connected to the lower connecting block, and the other end is arranged outside the middle connecting rod through a through hole provided on the rod body. A sealing plug is arranged between the through hole and the equipment connection line.

A test line is arranged on the upper connection block in the lower terminal pole.

The positive effects of the utility model are: the utility model uses the connecting rod connected inside to replace the original test line, and only needs to connect the upper connecting rod, the middle connecting rod, and the lower connecting rod to realize the simultaneous installation of the connecting rod. The purpose of test wiring is very convenient for use and storage. The internal wire connection of the wiring rod can replace the test line to connect the circuit breaker. The connection is stable and will not fall off.

Description of drawings

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

Fig. 2 is a schematic diagram of the structure of the utility model's upper terminal pole;

Fig. 3 is a structural schematic diagram of the utility model middle connecting rod;

Fig. 4 is a schematic diagram of the structure of the lower end wiring rod of the utility model;

Fig. 5 is a partially enlarged view at A of Fig. 1 of the present utility model.

Detailed ways

As shown in the accompanying drawings 1-5, the utility model includes an upper connecting rod 1, a middle connecting rod 2 and a lower connecting rod 3 which are sequentially connected by threads, and a clip 8 is arranged on the upper end of the upper connecting rod 1; 1. The lower end of the middle connecting rod 2 is provided with a lower connection part 6, and the upper part of the middle connecting rod 2 and the lower connecting rod 2 is provided with an upper connecting part 5 matched with the lower connecting end. A wire 11 is provided between the part 5 and the lower connection part 6 , and a wire 11 is provided between the lower connection part 6 and the clip 8 located in the upper connecting rod 1 . Both the upper connection part 6 and the lower connection part 5 are made of copper conductive material.

The lower ends of the upper terminal rod 1 and the middle terminal rod 2 are provided with external threads, and the upper ends of the middle terminal rod 2 and the lower terminal rod 3 are provided with internal threads. The upper terminal rod 1, the middle terminal rod 2, and the lower terminal rod 3 are connected by threads.

The upper connection part 5 includes an upper connection block 501, a guide rod 503 arranged at the upper end of the upper connection block 501, a ball spring 504 arranged at the top end of the guide rod 503, and a lower lug 502 arranged at the lower end of the upper connection block 501; The lower connection part 6 includes a lower connection block 601 , a connection hole 603 arranged at the lower end of the lower connection block 601 , a card slot arranged in the connection hole 603 for clamping with the ball spring 504 and an upper terminal lug 602 arranged at the upper end of the lower connection block 601 ; The upper connection part 5 and the lower connection part 6 located in the middle connecting rod 2 are connected through the upper connecting lug 602 and the lower connecting lug 502, and the lower connecting part 6 in the upper connecting rod 1 is connected to the clip 8 through the lower connecting lug 602 wire connection. After the two connecting rods are connected, the upper connecting part 5 and the lower connecting part 6 in two adjacent connecting rods 1 are connected, and the guide rod 503 of the upper connecting part 5 is inserted into the connecting hole 603 of the lower connecting part 6, and the ball The springs 504 make contact, enabling communication.

There can be two or more terminal poles 2 in the middle, which can be connected by themselves according to the required length.

When the upper connecting rod 1, the middle connecting rod 2, and the lower connecting rod 3 are connected, the inside of the whole rod body is in a connected state, and the whole rod body is in a rigid state, and the connection is very stable.

A lower sealing portion 9 is provided at the lower ends of the upper connecting rod 1 and the middle connecting rod 2 , and an upper sealing portion 7 matching the lower sealing portion 9 is provided at the upper ends of the middle connecting rod 2 and the lower connecting rod 3 .

The lower sealing part 9 includes an inverted bowl-shaped rubber sleeve 901 arranged at the lower end of the upper terminal pole 1 or the middle terminal pole 2 , a first gasket 902 and a second gasket arranged inside the rubber sleeve 901 and inclined upward. 903 and the first sealing ring 904 respectively arranged on the inner and outer sides of the first gasket 902 and the second gasket 903 . The upper sealing portion 7 includes a sealing sleeve 701 arranged on the upper end of the middle connecting rod 2 or the upper end of the lower connecting rod 3, a third sealing gasket 702 and a fourth sealing gasket 703 arranged obliquely downward on the outer wall of the sealing sleeve 701 and respectively arranged on the outer wall of the sealing sleeve 701. The third sealing pad 702 and the second sealing ring 704 on the inner and outer sides of the fourth sealing pad 703 .

After the two wiring rods are connected by threads, the upper and lower sealing parts are matched. In an ideal state, the fourth sealing gasket 703, the first sealing gasket 902, the third sealing gasket 702, and the second sealing gasket 903 are sequentially overlapped, and then Complete sealing is achieved by the second sealing ring 704 and the first sealing ring 904 . And even if it is not completely in an ideal state, the second sealing ring 704 and the first sealing ring 904 can also be sealed to prevent water or other impurities from entering the rod body during use and affect the test results. Leakage caused casualties to operators.

On the lower connecting block 601 in the middle connecting rod 2, an equipment connecting line 10 for connecting with the testing equipment is provided, one end of the equipment connecting line 10 is fixedly connected to the lower connecting block 601, and the other end is passed through and arranged on the rod body The through hole is arranged on the outer side of the terminal rod 2 in the middle, and a sealing plug is arranged between the through hole and the equipment connection line 10 . A sealed assembly method is also adopted between the equipment connection line 10 and the rod body of the middle terminal rod 2, so that impurities can enter in an effective way.

An extension test line 4 is provided on the upper connection block 501 in the lower terminal pole 3, which can be used for wiring of a 220kV circuit breaker.

The above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be applied to the foregoing embodiments Modifications are made to the recorded technical solutions, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (8)

1. A special terminal rod for testing the mechanical characteristics of a circuit breaker, characterized in that it includes an upper terminal rod (1), a middle terminal rod (2) and a lower terminal rod (3) connected in sequence, and the upper terminal rod (1) A clip (8) is provided at the upper end; a lower connection part (6) is provided at the lower end of the upper terminal pole (1) and the middle terminal pole (2), and a lower connection part (6) is provided at the upper part of the middle terminal pole (2) and the lower terminal pole (3). There is an upper connecting part (5) matched with the lower connecting end, and a wire (11) is arranged between the upper connecting part (5) and the lower connecting part (6) in the middle connecting rod (2). A wire (11) is arranged between the lower connection part (6) in the wiring rod (1) and the clip (8). 2. The special wiring rod for testing the mechanical characteristics of circuit breakers according to claim 1, characterized in that the upper connecting part (5) includes an upper connecting block (501), a guide rod ( 503), the ball spring (504) arranged at the top of the guide rod (503) and the lower lug (502) arranged at the lower end of the upper connection block (501); The lower connecting part (6) includes a lower connecting block (601), a connecting hole (603) arranged at the lower end of the lower connecting block (601), and a spring (504) arranged in the connecting hole (603) for clamping with the ball spring (504). The card slot and the upper terminal lug (602) arranged on the upper end of the lower connection block (601); The wiring lug (502) is connected with wires, and the lower connection part (6) in the upper terminal rod (1) is connected with the wire of the clip (8) through the lower wiring lug (602). 3. The special terminal rod for testing the mechanical characteristics of circuit breakers according to claim 1 or 2, characterized in that the lower ends of the upper terminal rod (1) and the middle terminal rod (2) are provided with external threads, and the middle terminal rod ( 2) and the upper ends of the lower connecting rod (3) are provided with internal threads, and the upper connecting rod (1), the middle connecting rod (2) and the lower connecting rod (3) are all connected by threads. 4. The special terminal rod for testing the mechanical characteristics of circuit breakers according to claim 3, characterized in that a lower sealing part (9) is provided at the lower ends of the upper terminal rod (1) and the middle terminal rod (2), and the middle part is connected The upper ends of the rod (2) and the lower terminal rod (3) are both provided with an upper sealing part (7) matched with the lower sealing part (9). 5. The special terminal rod for testing the mechanical characteristics of circuit breakers according to claim 4, characterized in that the lower sealing part (9) is provided at the lower end of the upper terminal rod (1) or the middle terminal rod (2) and is in the shape of an undercut The bowl-shaped rubber sleeve (901), the first sealing gasket (902) and the second sealing gasket (903) which are arranged on the inside of the rubber casing (901) and are arranged on the The first sealing ring (904) on the inner and outer sides of the gasket (903). 6. The special terminal rod for testing the mechanical characteristics of circuit breakers according to claim 5, characterized in that the upper sealing part (7) includes a sealing sleeve ( 701), the third sealing gasket (702) and the fourth sealing gasket (703) arranged obliquely downward on the outer wall of the sealing sleeve (701), and the third sealing gasket (702) and the fourth sealing gasket (703) respectively The second sealing ring (704) on the inner and outer sides; The upper sealing part (7) and the lower sealing part (9) are connected through a first sealing gasket (902), a second sealing gasket (903), a third sealing gasket (702), and a fourth sealing gasket (703). 7. The special terminal pole for testing the mechanical characteristics of circuit breakers according to claim 2, characterized in that an equipment connection line (10) is provided on the lower connection block (601) in the middle terminal pole (2), and the One end of the equipment connection line (10) is fixedly connected to the lower connection block (601), and the other end passes through the through hole provided on the pole body and is set outside the middle terminal pole (2), between the through hole and the equipment connection line (10) A sealing plug is provided. 8. The special terminal rod for testing the mechanical characteristics of circuit breakers according to claim 2, characterized in that an extension test line (4) is provided on the upper connection block (501) in the lower terminal rod (3).