Glass fiber impact tube for transformer

Abstract

The utility model discloses a glass fiber impact tube for a transformer, and relates to the technical field of transformer bushings. Comprising a glass fiber outer tube and a conducting rod arranged in an inner cavity of the glass fiber outer tube, the conducting rod is hollow, an inner cavity in one end of the conducting rod is connected with a first connector, one end of the first connector is connected with a first connecting column, the first connecting column is connected with a first end located outside the glass fiber outer tube, and an inner cavity in the other end of the conducting rod is connected with a second connector. One end of the second connector is connected with a second connecting column, the second connecting column is connected with a second end located outside the glass fiber outer tube, the outer wall of the second connecting column is provided with a second limiting groove, and the inner wall of the glass fiber outer tube is connected with a second limiting block clamped into the second limiting groove. According to the glass fiber impact tube for the transformer, the first end head and the second end head connected with the two ends of the conducting rod and the glass fiber outer tube are positioned through cooperation of the limiting blocks and the limiting grooves, and it can be ensured that the glass fiber outer tube, the first end head and the second end head are kept stable.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer bushings, in particular to a glass fiber impact tube for transformers. Background Art

[0002] Fiberglass sleeving is a protective and insulating material used in electronic, electrical, and mechanical equipment. Woven from high-quality glass fiber filaments, it exhibits excellent heat resistance, corrosion resistance, abrasion resistance, and insulation properties. It is commonly used for the protection and insulation of equipment such as wires, cables, motors, transformers, sensors, hydraulic lines, and automotive parts, minimizing wear and tear in high-temperature, corrosive, and high-pressure environments. Furthermore, fiberglass sleeving can withstand temperatures up to 1100°C, making it widely used in high-temperature environments in aerospace, metallurgy, and chemical engineering.

[0003] When used as a transformer bushing, the fiberglass bushing is an outlet device that leads the high and low voltage inside the transformer to the outside of the oil tank. Due to a loose connection, the existing transformer bushing joint and the end of the conductive rod may experience relative rotation or axial deviation, affecting the sealing performance between the two. Utility Model Content

[0004] The utility model provides a glass fiber impact tube for a transformer to solve the problems in the background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A glass fiber impact tube for a transformer, comprising a glass fiber outer tube and a conductive rod placed in the inner cavity of the glass fiber outer tube, the conductive rod being hollow, the inner cavity at one end of the conductive rod being connected to a first connector, one end of the first connector being connected to a first connecting column, the first connecting column being connected to a first end located outside the glass fiber outer tube, the inner cavity at the other end of the conductive rod being connected to a second connector, one end of the second connector being connected to a second connecting column, the second connecting column being connected to a second end located outside the glass fiber outer tube, a second limiting groove being provided on the outer wall of the second connecting column, and a second limiting block being inserted into the second limiting groove being connected to the inner wall of the glass fiber outer tube.

[0006] Furthermore, a first limiting groove is provided on the outer wall of the first connecting column, and the inner cavity of one end of the glass fiber outer tube close to the first end head is equipped with a retaining ring passed through by the first connecting column, and the inner wall of the retaining ring is integrally formed with a first limiting block that is inserted into the inner cavity of the first limiting groove.

[0007] Furthermore, a sealing ring is sleeved on the first connecting column and contacts the retaining ring toward the second end.

[0008] Furthermore, an assembly groove is provided in the inner cavity of one end of the glass fiber outer tube facing the second end head, and an expansion sealing gasket that matches the assembly groove is sleeved on the second connecting column.

[0009] Furthermore, the inner cavities of the second end head, the second connecting column, and the second connector are hollow and open at both ends, and the inner cavities of the second end head, the second connecting column, the second connector, and the conductive rod are connected.

[0010] Furthermore, a second through hole is formed on the outer wall of the conductive rod, and a first through hole corresponding to the second through hole is formed on the outer wall of the glass fiber outer tube.

[0011] Compared with the prior art, the utility model provides a glass fiber impact tube for a transformer, which has the following beneficial effects: the first end head and the second end head connected to the two ends of the conductive rod of the glass fiber impact tube for the transformer are positioned by the cooperation of the limit block and the limit groove, which can ensure that the glass fiber outer tube, the first end head and the second end head remain stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the glass fiber outer tube and the conductive rod of the present invention when they are disassembled;

[0014] Figure 3 This is a schematic structural diagram of the conductive rod, the first end, and the second end of the present invention when they are disassembled;

[0015] Figure 4 This is an enlarged schematic diagram of point A of the present utility model;

[0016] Figure 5 This is a schematic structural diagram of the second end head of the utility model;

[0017] Figure 6 This is a front planar structural diagram of the glass fiber outer tube of the present invention;

[0018] Figure 7 It is a right side plan view of the glass fiber outer tube of the utility model.

[0019] In the figure: 1. Glass fiber outer tube; 2. Conductive rod; 3. First connector; 4. First connecting column; 5. First end; 6. Second connector; 7. Second connecting column; 8. Second end; 9. First limiting groove; 10. Retaining ring; 11. First limiting block; 12. Second limiting groove; 13. Second limiting block; 14. Expansion sealing gasket; 15. Sealing ring; 16. First through hole; 17. Second through hole; 18. Assembly groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-7 The utility model discloses a glass fiber impact tube for a transformer, wherein the conductive rod 2 is hollow, and the inner cavity at one end of the conductive rod 2 is connected to a first connector 3, one end of the first connector 3 is connected to a first connecting column 4, the first connecting column 4 is connected to a first end 5 located outside a glass fiber outer tube 1, and the inner cavity at the other end of the conductive rod 2 is connected to a second connector 6, one end of the second connector 6 is connected to a second connecting column 7, the second connecting column 7 is connected to a second end 8 located outside the glass fiber outer tube 1, a second limiting groove 12 is opened on the outer wall of the second connecting column 7, and a second limiting block 13 is connected to the inner wall of the glass fiber outer tube 1, which is inserted into the second limiting groove 12.

[0022] Specifically, the inner cavity of one end of the glass fiber outer tube 1 close to the first end head 5 is equipped with a retaining ring 10 passed through by the first connecting column 4 , and the inner wall of the retaining ring 10 is integrally formed with a first limiting block 11 that is inserted into the inner cavity of the first limiting groove 9 .

[0023] In this embodiment, the outer diameter of the first end head 5 is larger than the inner diameter of the glass fiber outer tube 1 , and one end of the first end head 5 contacts the end of the glass fiber outer tube 1 and covers the end opening of the glass fiber outer tube 1 .

[0024] When the first limiting block 11 is inserted into the first limiting groove 9 , the first connecting column 4 and the glass fiber outer tube 1 are connected together relatively firmly.

[0025] Specifically, a sealing ring 15 is sleeved on the first connecting column 4 and contacts the retaining ring 10 toward the second end head 8 .

[0026] In this embodiment, the first sealing ring 15 is located on the side of the retaining ring 10 away from the first end 5, which can prevent the first connector 3 from driving the conductive rod 2 to separate from the side of the glass fiber outer tube 1 where the retaining ring 10 is assembled.

[0027] Specifically, an assembly groove 18 is formed in the inner cavity of one end of the glass fiber outer tube 1 facing the second end head 8 , and an expansion sealing gasket 14 that cooperates with the assembly groove 18 is sleeved on the second connecting column 7 .

[0028] In this embodiment, the expansion sealing pad 14 can cooperate with the assembly groove 18 to play a sealing role. The outer diameter of the second end head 8 is larger than the inner diameter of the glass fiber outer tube 1. One end of the second end head 8 contacts the end of the glass fiber outer tube 1 and covers the end opening of the glass fiber outer tube 1.

[0029] The expansion sealing pad 14 is located on a side of the second limiting groove 12 away from the second end head 8 .

[0030] Specifically, the inner cavities of the second end 8, the second connecting column 7, and the second connector 6 are hollow and open at both ends, and the inner cavities of the second end 8, the second connecting column 7, the second connector 6, and the conductive rod 2 are connected.

[0031] A second through hole 17 is formed on the outer wall of the conductive rod 2 , and a first through hole 16 corresponding to the second through hole 17 is formed on the outer wall of the glass fiber outer tube 1 .

[0032] In this embodiment, the inner cavity of the conductive rod 2 is communicated with the inner cavities of the second end 8 , the second connecting column 7 , and the second connecting head 6 .

[0033] To sum up, the transformer uses a glass fiber impact tube, and the first end 5 and the second end 8 connected to the two ends of the conductive rod 2 are positioned with the glass fiber outer tube 1 through the cooperation of the limit block and the limit groove, which can ensure that the glass fiber outer tube 1, the first end 5, and the second end 8 remain stable.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A glass fiber impact tube for a transformer, comprising a glass fiber outer tube (1) and a conductive rod (2) disposed in an inner cavity of the glass fiber outer tube (1), characterized in that: The conductive rod (2) is hollow, and the inner cavity of one end of the conductive rod (2) is connected to a first connector (3), one end of the first connector (3) is connected to a first connecting column (4), the first connecting column (4) is connected to a first end (5) located outside the glass fiber outer tube (1), the inner cavity of the other end of the conductive rod (2) is connected to a second connector (6), one end of the second connector (6) is connected to a second connecting column (7), the second connecting column (7) is connected to a second end (8) located outside the glass fiber outer tube (1), the outer wall of the second connecting column (7) is provided with a second limiting groove (12), and the inner wall of the glass fiber outer tube (1) is connected to a second limiting block (13) that is inserted into the second limiting groove (12).

2. The glass fiber impact tube for transformer according to claim 1, characterized in that: The outer wall of the first connecting column (4) is provided with a first limiting groove (9), and the inner cavity of one end of the glass fiber outer tube (1) close to the first end head (5) is equipped with a retaining ring (10) passed through by the first connecting column (4), and the inner wall of the retaining ring (10) is integrally formed with a first limiting block (11) that is inserted into the inner cavity of the first limiting groove (9).

3. The glass fiber impact tube for transformer according to claim 2, characterized in that: The first connecting column (4) is sleeved with a sealing ring (15) that abuts against the retaining ring (10) and faces the second end head (8).

4. The glass fiber impact tube for transformer according to claim 1, characterized in that: An assembly groove (18) is provided in the inner cavity of one end of the glass fiber outer tube (1) facing the second end head (8), and an expansion sealing gasket (14) matching the assembly groove (18) is sleeved on the second connecting column (7).

5. The glass fiber impact tube for transformer according to claim 1, characterized in that: The inner cavities of the second end head (8), the second connecting column (7), and the second connecting head (6) are hollow and open at both ends, and the inner cavities of the second end head (8), the second connecting column (7), the second connecting head (6), and the conductive rod (2) are connected.

6. The glass fiber impact tube for transformer according to claim 5, characterized in that: The outer wall of the conductive rod (2) is provided with a second through hole (17), and the outer wall of the glass fiber outer tube (1) is provided with a first through hole (16) corresponding to the second through hole (17).

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