Novel split guide rod type oil-oil casing

Abstract

The utility model discloses a novel split type guide rod type oil-oil bushing, which comprises an upper insulating tube, a lower insulating tube, a conducting rod, an upper flange, a lower flange and a positioning plate, the upper insulating tube and the lower insulating tube are arranged on the upper side and the lower side of the lower flange, the upper flange is arranged on the outer side of the upper insulating tube, and the positioning plate is arranged on the outer side of the lower insulating tube. The two ends of the conducting rod penetrate through the upper flange and the positioning plate respectively, and the two ends of the conducting rod are in threaded connection with locking nuts. According to the utility model, the split structure is adopted, so that the processing of the insulating tube is facilitated, and the lengths of the upper and lower insulating tubes can be adjusted according to different voltage grades. And when the lower flange is glued, the sealing ring is arranged between the lower flange and the upper insulating tube, so that the sealing is better ensured, and the gluing quality is easy to control.

Description

Technical Field

[0001] The utility model relates to a novel split guide rod type oil-oil casing. Background Art

[0002] Oil-to-oil casings are widely used for connecting and transmitting current between reactors, capacitors, reactors and capacitors, and other oil-based electrical products. Due to the relative height difference between the two devices, current conduction is required while preventing leakage between the oil tanks of the two devices. Existing oil-to-oil casings feature an integrated insulating tube, and the seal between the lower flange and the insulating tube is achieved through adhesive bonding. This results in poor sealing, requires very high adhesive quality, and is difficult to manufacture. Summary of the Invention

[0003] The utility model provides a novel split guide rod type oil-oil casing in order to solve the problems existing in the above-mentioned prior art.

[0004] The technical solutions adopted in this utility model are:

[0005] A new type of split guide rod oil-oil casing, including an upper insulating tube, a lower insulating tube, a conductive rod, an upper flange, a lower flange and a positioning plate. The upper insulating tube and the lower insulating tube are arranged on the upper and lower sides of the lower flange, the upper flange is arranged on the outside of the upper insulating tube, and the positioning plate is arranged on the outside of the lower insulating tube. The two ends of the conductive rod pass through the upper flange and the positioning plate respectively, and locking nuts are threadedly connected at both ends of the conductive rod.

[0006] Furthermore, a glue rib protruding along the axial direction of the lower flange is provided on one end face of the lower flange, and a positioning edge extending along the radial direction of the lower flange is provided on the inner hole wall of the lower flange, and the upper insulating tube and the lower insulating tube respectively abut against the end faces on both sides of the positioning edge.

[0007] Furthermore, a positioning groove for positioning the lower insulating tube is provided on the end surface corresponding to one side of the positioning edge.

[0008] Furthermore, a sealing groove is provided on the end face corresponding to one side of the positioning edge, a sealing ring is provided in the sealing groove, the upper insulating tube abuts against the sealing ring, and the upper insulating tube is fixed to the adhesive rib by adhesive bonding.

[0009] Furthermore, a sealing ring is provided between the upper flange and the upper insulating tube.

[0010] Furthermore, a gland is provided on the outer side of the upper flange, the gland is sleeved on the conductive rod, and a sealing ring is provided between the gland and the upper flange.

[0011] Furthermore, an oil inlet channel is provided on the gland.

[0012] The utility model has the following beneficial effects:

[0013] This utility model adopts a split structure, which not only facilitates the processing of the insulation tube (short-length insulation tubes are easier to process than long-length ones), but also allows the length of the upper and lower insulation tubes to be adjusted according to different voltage levels. When gluing the lower flange, a sealing ring is placed between the lower flange and the upper insulation tube, which ensures a better seal and makes it easier to control the gluing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the utility model. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] like Figure 1 As shown, the utility model is a novel split guide rod type oil-oil casing, comprising an upper insulating tube 1, a lower insulating tube 2, a conductive rod 3, an upper flange 4, a lower flange 5 and a positioning plate 6. The upper insulating tube 1 and the lower insulating tube 2 are arranged on the upper and lower sides of the lower flange 5, the upper flange 4 is arranged on the outside of the upper insulating tube 1, and the positioning plate 6 is arranged on the outside of the lower insulating tube 2. The two ends of the conductive rod 3 pass through the upper flange 4 and the positioning plate 6 respectively. Locking nuts are threadedly connected at both ends of the conductive rod 3. When the locking nuts are tightened, the positioning plate 6 moves toward each other to press the upper insulating tube 1 and the lower insulating tube 2 against the lower flange 5, thereby realizing the assembly of the overall structure.

[0017] The upper end surface of the lower flange 5 in the utility model is provided with a glue rib 51 protruding along the axial direction of the lower flange, and the inner hole wall of the lower flange 5 is provided with a positioning edge 52 extending along the radial direction of the lower flange. After the overall structure of the sleeve is assembled, the upper insulating tube 1 and the lower insulating tube 2 respectively contact the end surfaces on both sides of the positioning edge 52.

[0018] In order to ensure the positioning effect of the lower insulating tube 2, a positioning groove for positioning the lower insulating tube 2 is provided on the lower end surface of the positioning edge 52, and the lower insulating tube 2 is abutted in the positioning groove.

[0019] In order to ensure the sealing between the upper insulating tube 1 and the lower flange 5, a sealing groove is provided on the corresponding end face of the positioning edge 52, and a sealing ring is provided in the sealing groove. The upper insulating tube 1 is in contact with the sealing ring, and the upper insulating tube 1 is glued and fixed to the glue rib 51.

[0020] To ensure the sealing of the overall structure, a sealing ring is provided between the upper flange 4 and the upper insulating tube 1. A gland 7 is provided on the outer side of the upper flange 4, which is sleeved on the conductive rod 3, and a sealing ring is provided between the gland 7 and the upper flange 4.

[0021] When in use, the lower flange 5 is fixedly connected to the flange on the transformer, the lower insulating tube 2 is immersed in transformer oil, and an oil inlet channel is provided on the gland 7 for the transformer oil to enter the interior of the bushing.

[0022] This utility model adopts a split structure, which not only facilitates the processing of the insulation tube (short-length insulation tubes are easier to process than long-length ones), but also allows the lengths of the upper and lower insulation tubes to be adjusted according to different voltage levels. When gluing the lower flange, a sealing ring is placed between the lower flange 5 and the upper insulation tube 1, which ensures a better seal and makes it easier to control the gluing quality.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principles of the present invention. These improvements should also be regarded as the scope of protection of the present invention.

Claims

1. A new type of split guide rod oil-oil casing, characterized by: The invention comprises an upper insulating tube (1), a lower insulating tube (2), a conductive rod (3), an upper flange (4), a lower flange (5) and a positioning plate (6), wherein the upper insulating tube (1) and the lower insulating tube (2) are arranged on the upper and lower sides of the lower flange (5), the upper flange (4) is arranged on the outer side of the upper insulating tube (1), the positioning plate (6) is arranged on the outer side of the lower insulating tube (2), the two ends of the conductive rod (3) pass through the upper flange (4) and the positioning plate (6), respectively, and locking nuts are threadedly connected to the two ends of the conductive rod (3).

2. The novel split guide rod oil-oil casing according to claim 1 is characterized in that: A glue rib (51) protruding along the axial direction of the lower flange is provided on one end surface of the lower flange (5), and a positioning edge (52) extending along the radial direction of the lower flange is provided on the inner hole wall of the lower flange (5), and the upper insulating tube (1) and the lower insulating tube (2) respectively abut against the end surfaces on both sides of the positioning edge (52).

3. The novel split guide rod oil-oil casing according to claim 2 is characterized in that: A positioning groove for positioning the lower insulating tube (2) is provided on a corresponding end surface of the positioning edge (52).

4. The novel split guide rod oil-oil casing according to claim 2 is characterized in that: A sealing groove is provided on the end surface corresponding to one side of the positioning edge (52), a sealing ring is provided in the sealing groove, the upper insulating tube (1) abuts against the sealing ring, and the upper insulating tube (1) is fixed to the adhesive rib (51) by adhesive bonding.

5. The novel split guide rod oil-oil casing according to claim 1 is characterized in that: A sealing ring is provided between the upper flange (4) and the upper insulating tube (1).

6. The novel split guide rod oil-oil casing according to claim 1, characterized in that: A gland (7) is provided on the outer side of the upper flange (4), the gland (7) is sleeved on the conductive rod (3), and a sealing ring is provided between the gland (7) and the upper flange (4).

7. The novel split guide rod oil-oil casing according to claim 6, characterized in that: The gland (7) is provided with an oil inlet channel.

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