Novel copper tail pipe for GIS terminal

Abstract

The utility model relates to the technical field of cable accessories, and discloses a novel copper tail pipe for a GIS terminal, which comprises a rear pipe, the front side of the rear pipe is connected with a middle pipe, the front end of the middle pipe is connected with a front pipe structure, the side wall of the front pipe structure is provided with a plurality of notches close to the edge of the front side, the rear side of the rear pipe is fixedly connected with a connecting structure, and the connecting structure is fixedly connected with the middle pipe. The center of the upper end surface of the rear tube is fixedly connected with a grounding block; the connecting structure comprises a flange plate, four connecting holes are formed in the rear side wall of the flange plate, placing holes are formed in four quadrant points of the side wall of the flange plate respectively, springs are fixedly connected to the inner side walls of the four placing holes respectively, and connecting buckles are fixedly connected to the other ends of the four springs respectively. According to the utility model, the front pipe structure is arranged, and the front pipe is arranged to be of a multi-layer structure and a composite structure, so that the overall protection performance and the anti-electromagnetic interference capability are improved, and it is ensured that the cable is not influenced by the outside and the environment during use.

Description

Technical Field

[0001] This utility model relates to the field of cable accessories technology, and in particular to a novel copper tail tube for GIS terminals. Background Technology

[0002] As a key power transmission and distribution equipment in modern power systems, GIS is widely used in important power facilities such as substations and power plants due to its high reliability, high safety, and compact structural design. GIS effectively reduces the equipment footprint and significantly improves the overall operational stability of the power system by enclosing high-voltage components such as circuit breakers, disconnectors, grounding switches, current transformers, voltage transformers, and busbars in a metal shell filled with insulating gas. In the structure of GIS terminals, copper tail tubes are an indispensable component, mainly used to achieve a reliable grounding connection between the cable's metal sheath and the GIS equipment shell, and to protect the cable's main insulation from external environmental influences.

[0003] However, existing copper tail tubes still have some shortcomings and areas for improvement in practical use. Most existing copper tail tubes are connected by bolts during installation and connection, resulting in long connection time and low assembly efficiency. At the same time, the overall electromagnetic shielding performance needs to be improved during use. Therefore, those skilled in the art provide a new type of copper tail tube for GIS terminals to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a novel copper tail tube for GIS terminals. By setting a connection structure, during use, after the end of the connection end is engaged with the flange, one end of the four connecting buckles is lifted. Under the action of the hinge, the spring inside the placement hole is stretched, so that one end of the connecting buckle is high and the other end is low. Then, by snapping the lower end onto the end side wall of the connection end, the connection and positioning process is completed, improving the overall connection and installation efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel copper tail tube for a GIS terminal, comprising a rear tube, an intermediate tube connected to the front side of the rear tube, a front tube structure connected to the front end of the intermediate tube, a plurality of notches provided on the front edge of the side wall of the front tube structure, a connecting structure fixedly connected to the rear side of the rear tube, and a grounding block fixedly connected to the center of the upper end face of the rear tube.

[0006] The connection structure includes a flange, four connection holes are provided on the rear side wall of the flange, placement holes are provided on the four quadrant points of the side wall of the flange, springs are fixedly connected to the inner side walls of the four placement holes, and connecting buckles are fixedly connected to the other ends of the four springs. The lower end face center of the four connecting buckles is hinged to the front side wall of the flange by hinges.

[0007] By using the above technical solution and setting a connection structure, when in use, after the end of the connection end is engaged with the flange, one end of the four connecting buckles is lifted. Under the action of the hinge, the spring inside the placement hole is stretched, so that one end of the connecting buckle is high and the other end is low. Then, by snapping the lower end onto the end side wall of the connection end, the connection and positioning process is completed, improving the overall connection and installation efficiency.

[0008] Furthermore, the front tube structure includes a front tube, and two corrugated rings are provided on the inner sidewall of the front tube. The front tube includes an outer layer, a middle layer and an inner layer, with the inner layer disposed inside the middle layer and the middle layer disposed inside the outer layer.

[0009] The above technical solution improves the overall protection performance and anti-electromagnetic interference capability by setting the front tube to a multi-layered structure, ensuring that it is not affected by external factors and the environment during use.

[0010] Furthermore, a through hole is provided at the upper end of the center of one side wall of the grounding block;

[0011] The above technical solution facilitates grounding connection.

[0012] Furthermore, the corrugated ring is made of alternating layers of aluminum foil;

[0013] Through the above technical solution, multi-layer aluminum foil can reflect and attenuate electromagnetic interference.

[0014] Furthermore, the outer layer, middle layer, and inner layer are made of corrosion-resistant aluminum alloy, copper, and silver-plated copper, respectively.

[0015] Through the above technical solutions, corrosion-resistant aluminum alloys can provide mechanical protection and resistance to environmental corrosion, copper achieves a balance between high strength and conductivity through rolling composite process, and silver-plated copper ensures low contact resistance.

[0016] Furthermore, the lower end of the grounding block is welded to the side wall of the rear tube;

[0017] The above technical solutions ensure the stability of the welded connection.

[0018] Furthermore, all four connecting buckles are made of metal;

[0019] The above technical solution has high strength and can ensure stability and rigidity during connection.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by setting a front tube structure, and by setting the front tube as a multi-layered composite structure, the overall protection performance and anti-electromagnetic interference capability are improved, ensuring that it is not affected by external and environmental factors during use.

[0022] 2. In this utility model, by setting a connection structure, after the end of the connection end is matched with the flange, one end of the four connecting buckles is lifted, and the spring inside the placement hole is stretched under the action of the hinge, so that one end of the connecting buckle is high and the other end is low. Then, by snapping the lower end onto the end side wall of the connection end, the connection and positioning process is completed, thereby improving the overall connection and installation efficiency. Attached Figure Description

[0023] Figure 1 Axonometric drawing of a novel copper tail tube for a GIS terminal proposed in this utility model;

[0024] Figure 2 Another perspective is the isometric view of a novel copper tail tube for a GIS terminal proposed in this utility model.

[0025] Figure 3 This is a partial front sectional view of a novel copper tail tube for a GIS terminal proposed in this utility model;

[0026] Figure 4 This is an isometric sectional view of the connecting structure in a copper tailpipe for a novel GIS terminal proposed in this utility model.

[0027] Legend:

[0028] 1. Rear tube; 2. Grounding block; 3. Middle tube; 4. Front tube structure; 401. Corrugated ring; 402. Outer layer; 403. Middle layer; 404. Inner layer; 405. Front tube; 5. Notch; 6. Connection structure; 601. Flange; 602. Connection hole; 603. Hinge; 604. Connecting buckle; 605. Spring; 606. Placement hole; 7. Through hole. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1-4 An embodiment of this utility model is provided: a novel copper tail tube for a GIS terminal, including a rear tube 1, a middle tube 3 connected to the front side of the rear tube 1, a front tube structure 4 connected to the front end of the middle tube 3, a plurality of notches 5 provided on the side wall of the front tube structure 4 near the front edge, a connecting structure 6 fixedly connected to the rear side of the rear tube 1, and a grounding block 2 fixedly connected to the center of the upper end face of the rear tube 1.

[0031] The connection structure 6 includes a flange 601. Four connection holes 602 are provided on the rear side wall of the flange 601. Placement holes 606 are provided on the four quadrant points of the side wall of the flange 601. Springs 605 are fixedly connected to the inner side walls of the four placement holes 606. Connecting buckles 604 are fixedly connected to the other ends of the four springs 605. The lower end face center of the four connecting buckles 604 is hinged to the front side wall of the flange 601 by hinges 603. In use, after the end of the connection end is engaged with the flange 601, one end of the four connecting buckles 604 is lifted. Under the action of the hinges 603, the springs 605 inside the placement holes 606 are stretched, so that one end of the connecting buckle 604 is high and the other end is low. Then, by snapping the lower end onto the end side wall of the connection end, the connection and positioning are completed, improving the overall connection and installation efficiency.

[0032] The front tube structure 4 includes a front tube 405. Two corrugated rings 401 are provided on the inner wall of the front tube 405. The front tube 405 includes an outer layer 402, a middle layer 403 and an inner layer 404. The inner layer 404 is located inside the middle layer 403, and the middle layer 403 is located inside the outer layer 402. The materials of the outer layer 402, the middle layer 403 and the inner layer 404 are corrosion-resistant aluminum alloy, copper and silver-plated copper, respectively. The corrosion-resistant aluminum alloy can provide mechanical protection and resistance to environmental corrosion. The copper achieves a balance between high strength and conductivity through a rolling composite process. The silver-plated copper ensures low contact resistance. The lower end of the grounding block 2 is welded to the side wall of the rear tube 1. The welded connection can ensure the stability of the connection.

[0033] A through hole 7 is provided at the upper center of one side wall of the grounding block 2 to facilitate grounding connection. The corrugated ring 401 is made of alternating layers of aluminum foil. The multiple layers of aluminum foil can reflect and attenuate electromagnetic interference. The four connecting buckles 604 are all made of metal, which has high strength and can ensure stability and rigidity during connection.

[0034] Working principle: This utility model is a new type of copper tail tube for GIS terminals. In use, after the end of the connecting end is engaged with the flange 601, one end of the four connecting buckles 604 is lifted. Under the action of the hinge 603, the spring 605 inside the placement hole 606 is stretched, so that one end of the connecting buckle 604 is high and the other end is low. Then, by snapping the lower end onto the end side wall of the connecting end, the connection and positioning process is completed, improving the overall connection and installation efficiency. At the same time, the front tube structure 4 is made of composite material. The outer layer 402, the middle layer 403 and the inner layer 404 are made of corrosion-resistant aluminum alloy, copper and silver-plated copper, respectively. The corrosion-resistant aluminum alloy can provide mechanical protection and resistance to environmental corrosion. The copper achieves a balance of high strength and conductivity through rolling composite process. The silver-plated copper ensures low contact resistance and can ensure that it is not affected by external and environmental factors during use.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel copper tail tube for a GIS terminal, comprising a rear tube (1), a middle tube (3) connected to the front side of the rear tube (1), a front tube structure (4) connected to the front end of the middle tube (3), and a plurality of notches (5) provided on the front edge of the side wall of the front tube structure (4), characterized in that: A connecting structure (6) is fixedly connected to the rear side of the rear tube (1), and a grounding block (2) is fixedly connected to the center of the upper end face of the rear tube (1). The connection structure (6) includes a flange (601), four connection holes (602) are provided on the rear side wall of the flange (601), and placement holes (606) are provided on the four quadrant points of the side wall of the flange (601). Springs (605) are fixedly connected to the inner side walls of the four placement holes (606), and connecting buckles (604) are fixedly connected to the other ends of the four springs (605). The lower end face center of the four connecting buckles (604) is hinged to the front side wall of the flange (601) by hinges (603).

2. The copper tail tube for a novel GIS terminal according to claim 1, characterized in that: The front tube structure (4) includes a front tube (405), and two corrugated rings (401) are provided on the inner wall of the front tube (405). The front tube (405) includes an outer layer (402), a middle layer (403) and an inner layer (404). The inner layer (404) is disposed inside the middle layer (403), and the middle layer (403) is disposed inside the outer layer (402).

3. The copper tail tube for a novel GIS terminal according to claim 1, characterized in that: A through hole (7) is provided at the upper end of the center of one side wall of the grounding block (2).

4. The copper tail tube for a novel GIS terminal according to claim 2, characterized in that: The corrugated ring (401) is an alternating layer of aluminum foil.

5. The copper tail tube for a novel GIS terminal according to claim 2, characterized in that: The outer layer (402), the middle layer (403), and the inner layer (404) are made of corrosion-resistant aluminum alloy, copper, and silver-plated copper, respectively.

6. The copper tail tube for a novel GIS terminal according to claim 1, characterized in that: The lower end of the grounding block (2) is welded to the side wall of the rear tube (1).

7. The copper tail tube for a novel GIS terminal according to claim 1, characterized in that: All four connecting buckles (604) are made of metal.

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