CN204389550U - Flexible connector for preventing mistaken collision of relay protection test - Google Patents

Abstract

The utility model provides a flexible connector for preventing accidental contact in relay protection tests, which includes a body, the body is a metal conductor and an insulating protective layer is laid on the outer surface; wherein, the body is provided with: a terminal for inserting a protective device A fixing rod for the middle terminal hole, the fixing rod is an insulating rod; a metal wire for inserting into the terminal hole on the side of the protective equipment terminal, the metal wire is a metal conductor with a certain length and an insulating protective layer laid on the outer surface; and a Connector for connecting the test lead. Implementing the utility model, the utility model has the advantages of simple structure, convenient use, time-saving and labor-saving, high insulation performance, flexible matching of different protective equipment, and avoiding the damage of the protective equipment and the generation of potential safety hazards.

Description

A flexible connector for preventing accidental touch in relay protection test

technical field

The utility model relates to the technical field of relay protection tests, in particular to a flexible connector for preventing accidental touches in relay protection tests.

Background technique

With the increase of substation protection equipment, the maintenance workload is increasing, which leads to the increase of relay protection test workload.

At present, the test of substation protection equipment basically depends on the common test connection line. The disadvantages are: 1. Due to the space between the protection equipment installed in the screen cabinet door (or cabinet body) and the screen cabinet door (or cabinet body), It is very narrow, inconvenient for testing, and it is easy to accidentally touch and cause short-circuit accidents; 2. It is impossible to flexibly match the protection equipment with the test on the test site. If the unmatched common test connection line is used for a long time in the relay protection test, the The structure of the protection equipment is shortened, the service life of the protection equipment is reduced, and even the generation of potential safety hazards is caused; 3. A lot of preparation work needs to be done before the relay protection test, which is time-consuming and laborious; 4. Due to the contact between the ordinary test connection line and the protection equipment The two connectors are metal conductors. When testing the wiring, it is easy to mistakenly insert the aforementioned two connectors into the upper and lower terminals connected to the protection device, so that a short circuit is formed between the ordinary test connection wire and the protection device, causing burnout. Damage to protective equipment, and further endanger personal safety.

Utility model content

The technical problem to be solved by the embodiment of the utility model is to provide a flexible connector for preventing accidental contact in relay protection tests, which has a simple structure, is convenient to use, saves time and effort, and has high insulation performance, and can be flexibly matched with different protection devices , avoiding the destruction of protective equipment and the generation of potential safety hazards.

In order to solve the above technical problems, the embodiment of the utility model provides a flexible connector for preventing accidental contact in relay protection test, including a body, the body is a metal conductor and an insulating protective layer is laid on the outer surface; wherein, the On the body there are:

A fixing rod for inserting into the middle terminal hole of the terminal of the protection equipment, the fixing rod is an insulating rod;

A metal wire used to be inserted into the terminal hole on the side of the protective device terminal, the metal wire is a metal conductor with a certain length and an insulating protective layer laid on the outer surface; and

- A connection terminal for connecting a test connection lead.

Wherein, the connector further includes a first extension rod disposed between the fixing rod and the body; wherein,

The first extension rod is an insulating rod, and a groove is opened on one end facing the fixing rod, and the fixing rod is movably installed in the groove.

Wherein, the connector also includes a left handle and a right handle arranged on the body; wherein,

The left handle is a metal conductor with an insulating protective layer laid on the outer surface;

The right handle is a metal conductor with an insulating protective layer laid on its outer surface, and the connecting end is provided on the end away from the main body.

Wherein, one end of the left handle penetrating into the body is fixed to one end of the right handle penetrating into the body through a screw, and a spring is provided between the left handle and the right handle.

Wherein, the connector further includes a second extension rod sleeved on the outer surface of the metal wire and connected to the body, and the second extension rod is an insulating rod.

Wherein, the cross section of the metal wire is semicircular.

Wherein, the connecting end is a round hole.

Implementation of the utility model embodiment has the following beneficial effects:

1. In the embodiment of the utility model, since the connector is only connected to the terminal of the protection equipment, it can be operated conveniently even in a narrow space; at the same time, since the multiple components of the connector are covered with insulating protective layers, Therefore, it has good insulation;

2. In the embodiment of the utility model, since the fixed rod with insulation on the connector is inserted into the middle terminal hole of the protection equipment terminal, and the metal wire is inserted into the side terminal hole of the protection equipment terminal, the test connection line is avoided. A short circuit is formed between the protective device and the protective device, which may burn out the protective device and endanger personal safety. At the same time, since the connector is reserved for the connection end of the test connection line, the same test line can be used to flexibly match different Protect equipment, save time and effort.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model. For those skilled in the art, obtaining other drawings based on these drawings still belongs to the scope of the present utility model without any creative effort.

Fig. 1 is the schematic diagram of the planar structure of the flexible connector for preventing accidental contact of relay protection test provided by the embodiment of the present invention;

In the figure: 1-body, 11-screw, 2-fixing rod, 3-metal wire, 4-connection end, 5-first extension rod, 51-groove, 6-left handle, 7-right handle, 8- Second extension rod.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings.

The direction and position terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", " "Bottom", "side", etc., are only referring to the direction or position of the drawings. Therefore, the terms used in direction and position are used to explain and understand the utility model, rather than to limit the protection scope of the utility model.

As shown in Figure 1, in the embodiment of the utility model, a flexible connector for preventing accidental touches in relay protection tests is proposed, including a body 1, the body 1 is a metal conductor and an insulating protective layer is laid on the outer surface; wherein , the body 1 is provided with:

A fixing rod 2 for inserting into the middle terminal hole of the terminal of the protective device, the fixing rod 2 is an insulating rod;

A metal wire 3 for inserting into the side terminal hole of the connection terminal of the protection device, the metal wire 3 is a metal conductor with a certain length and an insulating protective layer laid on the outer surface; and

A connection terminal 4 for connecting a test lead.

It should be noted that the connecting end 4 can be set as a round hole, or as a terminal, or other, so there are many ways corresponding to the test connection line. According to the shape of the contact point of the protective device terminal, the cross-section of the general metal wire 3 is designed to be semicircular.

It can be understood that, in the process of using the connector, its operation is convenient. It is only necessary to fix the fixing rod 2 in the middle terminal hole of the protective equipment terminal, and insert the metal wire 3 into the side terminal hole of the protective equipment terminal. At the same time, the test connection line is connected to the connection terminal 4, so it has good insulation, and the same test connection line can be used to flexibly match different protection devices, which saves time and effort, and also avoids the test connection line and A short circuit is formed between the protection devices, causing hidden dangers such as burning out the protection devices and endangering personal safety.

In order to extend the fixed rod 2, it can be effectively inserted into the middle terminal hole of the terminal of the protective device, so the connector also includes a first extension rod 5 arranged between the fixed rod 2 and the body 1, and the first extension rod 5 is an insulating rod; To maintain and maintain the fixed rod 2, a groove 51 is provided on the end of the first extension rod 5 facing the fixed rod 2, and the fixed rod 2 is movably installed in the groove 51.

As an example, one end of the fixed rod 2 is hingedly installed in the groove 51. When using the fixed rod 2, after the fixed rod 2 is rotated to a certain position with one end fixed in the groove 51 as the fulcrum, the other end Insert it into the middle terminal hole of the protective device terminal and fix it. When the fixing rod 2 is not used, the fixing rod 2 will rotate with the end fixed in the groove 51 as a fulcrum until the fixing rod 2 is accommodated in the groove 51.

As another example, when using the fixed rod 2, after the fixed rod 2 is rotated and raised along the chute 51 and fixed, one end of the fixed rod is inserted into the middle terminal hole of the terminal of the protective device and fixed. When the fixed rod 2 is not used, loosen the fixed rod 2 And rotate and descend along the sliding groove 51 until the fixing rod 2 is accommodated in the groove 51 .

In order to facilitate operation and meet the functional requirements of the human body, the lower end of the connector is designed as a pliers type, so the connector also includes a left handle 6 and a right handle 7 arranged on the body 1; The metal conductor of the protective layer; the right handle 7 is a metal conductor with an insulating protective layer laid on the outer surface, and the end away from the main body 1 is provided with a connecting terminal 4 . At this time, one end of the left handle 6 penetrating into the body 1 is fixed with the end of the right handle 7 penetrating into the body 1 through a screw 11 , and a spring is arranged between the left handle 6 and the right handle 7 .

It can be understood that the lower end of the connector is designed as a pliers type, and the left handle 6 and the right handle 7 can be fixed in a certain angle by tightening the screw 11, and the screw 11 can be loosened, and the left handle 6 and the right handle 7 can be fixed at the same time. When relative force is applied, the left handle 6 and the right handle 7 can be opened by the spring.

In order to protect the metal wire 2, the connector further includes a second extension rod 8 sleeved on the outer surface of the metal wire 3 and connected to the body 1. The second extension rod 8 is an insulating rod.

It should be noted that the protection of the metal wire 2 can also be achieved by using a wear-resistant and insulating protective sheath or the like.

The application scenario of the flexible connector for preventing accidental contact in the relay protection test in the embodiment of the utility model is further explained:

The first step is to loosen the screw 11, apply relative pressure (that is, inward pressure) to the left and right handles, and then spread the fixing rod 2 from the groove 51 of the first extension rod 5;

The second step is to insert the semicircular metal wire 3 into the terminal hole on the side of the protective device terminal and fix it, and at the same time insert the fixing rod 2 into the middle terminal hole of the protective device terminal and fix it;

The third step is to connect the test connection line to the connection terminal 4 on the right handle 7, and then start the test;

Step 4: After the test is completed, remove the semicircular metal wire 3 and the fixed rod 2 from the protective equipment terminal, restore the original wiring of the protective device, and retract the fixed rod 2 into the first extension. In the groove 51 of the rod 5, at the same time, disassemble the test connection line, further, tighten the angle between the left and right handles and tighten the screw 11 to get final product.

Implementation of the utility model embodiment has the following beneficial effects:

1. In the embodiment of the utility model, since the connector is only connected to the terminal of the protection equipment, it can be operated conveniently even in a narrow space; at the same time, since the multiple components of the connector are covered with insulating protective layers, Therefore, it has good insulation;

2. In the embodiment of the utility model, since the fixed rod with insulation on the connector is inserted into the middle terminal hole of the protection equipment terminal, and the metal wire is inserted into the side terminal hole of the protection equipment terminal, the test connection line is avoided. A short circuit is formed between the protective device and the protective device, which may burn out the protective device and endanger personal safety. At the same time, since the connector is reserved for the connection end of the test connection line, the same test line can be used to flexibly match different Protect equipment, save time and effort.

What is disclosed above is only a preferred embodiment of the utility model, and of course it cannot limit the scope of rights of the utility model. Therefore, the equivalent changes made according to the claims of the utility model are still covered by the utility model. scope.

Claims (7)

1. A flexible connector for preventing accidental touches in relay protection tests, characterized in that it includes a body (1), the body (1) is a metal conductor and an insulating protective layer is laid on the outer surface; wherein, the body (1) There are: A fixing rod (2) for inserting into the middle terminal hole of the protective equipment terminal, the fixing rod (2) is an insulating rod; A metal wire (3) for inserting into the side terminal hole of the connection terminal of the protection device, the metal wire (3) is a metal conductor with a certain length and an insulating protective layer laid on the outer surface; and - Connector (4) for connecting the test lead. 2. The connector according to claim 1, characterized in that, the connector further comprises a first extension rod (5) arranged between the fixing rod (2) and the body (1); wherein , The first extension rod (5) is an insulating rod, which has a groove (51) on the end facing the fixed rod (2), and the fixed rod is movably installed in the groove (51) (2). 3. The connector according to claim 2, characterized in that, the connector further comprises a left handle (6) and a right handle (7) arranged on the body (1); wherein, The left handle (6) is a metal conductor with an insulating protective layer laid on its outer surface; The right handle (7) is a metal conductor with an insulating protective layer laid on its outer surface, and the connecting end (4) is provided on the end away from the body (1). 4. The connector according to claim 3, characterized in that, one end of the left handle (6) penetrating into the body (1) is threaded into the right handle (7) through a screw (11) One end inside the body (1) is fixed, and a spring is provided between the left handle (6) and the right handle (7). 5. The connector according to claim 4, characterized in that, the connector further comprises a second extension rod ( 8), the second extension rod (8) is an insulating rod. 6. The connector according to claim 5, characterized in that, the cross section of the metal wire (3) is semicircular. 7. The connection head according to claim 6, characterized in that, the connection end (4) is a round hole.