All-insulation drainage wire clamp of transformer substation

Abstract

The utility model discloses a transformer station all-insulation drainage wire clamp comprising a grounding ring and a wire clamp fixing seat, the wire clamp fixing seat is sleeved on the grounding ring, the wire clamp fixing seat is sleeved with a wire clamp insulation protection sleeve, the grounding ring is wrapped by a rubber insulation sheath, and the rubber insulation sheath is sleeved on the grounding ring. A metal conductor part is arranged at the position, not wrapped by the rubber insulating sheath, of the bottom of the grounding ring, a cover shell is installed at the bottom end of the side of the grounding ring, a movable insulating protective cover and an upper insulating cover plate are hinged to the inner side of the cover shell, and the movable insulating protective cover and the upper insulating cover plate are spliced and arranged on the upper side and the lower side of the metal conductor part in a covering mode. A supporting block is arranged on the outer side wall of the movable insulating shield, a damping rotating shaft is rotationally arranged on the supporting block, and a stop block is arranged at the top end of the damping rotating shaft. The utility model belongs to the technical field of drainage wire clamps, and particularly relates to an all-insulation drainage wire clamp for a transformer substation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of drainage wire clamp, and specifically refers to the transformer substation full insulation drainage wire clamp. BACKGROUND

[0002] At present, the terminal pole, strain pole, branch pole and sectional switch of distribution line are equipped with insulation grounding wire clamp according to the requirements of the design; when the line needs to be powered off for maintenance, in order to protect the personal safety of the operating personnel, it is necessary to carry out electricity testing and hang temporary grounding wire on the line.

[0003] Although the existing grounding ring and the insulation conductor connection are protected by an insulation cover, the metal conductor for electricity testing and grounding is exposed, which can easily cause grounding short circuit failure caused by branch contact with the line and foreign object contact. At the same time, as the reliability requirement of distribution network is getting higher and higher, non-power-off operation of distribution network is becoming more and more common. When carrying out non-power-off bypass operation of distribution network, in order to enable the bypass cable clamp to be connected to overhead insulated line, the overhead insulated conductor needs to be stripped before being connected, and after the operation is completed, the stripped part needs to be insulated, which not only increases the non-power-off operation time, but also increases the operation intensity of the operating personnel. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem of the exposed metal conductor for electricity testing and grounding, which can easily cause grounding short circuit failure caused by foreign object contact, the utility model provides a transformer substation full insulation drainage wire clamp.

[0005] In order to realize the above functions, the utility model adopts the following technical scheme: the transformer substation full insulation drainage wire clamp comprises a grounding ring and a clamp fixing seat, the clamp fixing seat is sleeved and installed on the grounding ring, a clamp insulation protective sleeve is installed on the outer side of the clamp fixing seat, the grounding ring is covered and arranged by a rubber insulation cover, the bottom part of the grounding ring which is not covered by the rubber insulation cover is a metal conductor part, a cover is installed at the bottom end of the side part of the grounding ring, a movable insulation cover and an upper insulation cover plate are hingedly connected to the inner side of the cover, the movable insulation cover and the upper insulation cover plate are hingedly connected to the upper and lower sides of the metal conductor part; a supporting block is arranged on the outer side wall of the movable insulation cover, a damping rotating shaft is rotatably arranged on the supporting block, and a stop block is arranged at the top end of the damping rotating shaft.

[0006] As a preferred technical scheme of the utility model, the bottom wall of the movable insulation cover is provided with a pull ring.

[0007] As a preferred technical scheme of the utility model, the side sectional view of the movable insulation cover is provided with a U-shaped structure.

[0008] As a preferred technical scheme of the utility model, gear one and gear two are arranged on the outer side wall of the cover, the rotating central shaft of the gear one is connected with the cover and the movable insulation shield through the cover hinged shaft, and the rotating central shaft of the gear two is connected with the upper insulation cover plate and the cover through the cover hinged shaft.

[0009] As a preferred technical scheme of the utility model, the cover is arranged in a character-shaped structure.

[0010] Compared with the prior art, the utility model adopts the above structure and has the beneficial effects as follows:

[0011] 1, the installation mode and installation position of the grounding ring are consistent with those of the ordinary grounding ring, the grounding ring can be installed when the line is overhauled and powered off, can be installed live, and can be used as the ordinary grounding ring after installation;

[0012] 2, in the line operation state, the grounding ring is in full insulation state, and line grounding short circuit failure caused by trees and foreign matters can be effectively avoided;

[0013] 3, greatly facilitate the distribution network non-power operation, when bypass non-power operation is needed, only the movable insulation shield of the grounding ring needs to be pulled open, the bypass cable clamp can be quickly connected, the operation time is greatly shortened, and the operation intensity is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model provides whole structure schematic of transformer substation full insulation current lead wire clamp Figure 1 ;

[0015] Figure 2 The utility model provides whole structure schematic of transformer substation full insulation current lead wire clamp Figure 2 ;

[0016] Figure 3 Partially cutaway view of transformer substation full insulation current lead wire clamp provided by the utility model is shown in the figure.

[0017] Figure 4 It is Figure 1 A local enlarged view in the middle part.

[0018] Figure 5 It is Figure 1 A local enlarged view in the middle part.

[0019] 1, the grounding ring, 2, the wire clamp fixed seat, 3, the wire clamp insulation protection sleeve, 4, the cover, 5, the movable insulation shield, 6, the upper insulation cover plate, 7, the supporting block, 8, the damping rotating shaft, 9, the stop block, 10, the pull ring, 11, gear one, 12, gear two, 13, the metal conductor part. DETAILED DESCRIPTION

[0020] The technical solutions of the utility model will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0021] In the description of the utility model, it should be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as limiting the indicated device or element to have a specific orientation, to be constructed and operated in a specific orientation, therefore, cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. The utility model will be further described in detail in connection with the drawings.

[0022] As shown in Figures 1-5 The utility model provides a transformer substation full insulation lead -in wire clamp, including earthing ring 1 and clamp fixed base 2, clamp fixed base 2 is installed on earthing ring 1, clamp fixed base 2 outside sleeve installation has wire clamp insulation protection sleeve 3, earthing ring 1 is covered by rubber insulation sheath setting, earthing ring 1 bottom is not covered by rubber insulation sheath and is metal conductor part 13, earthing ring 1 side bottom end is installed with cover 4, cover 4 is set up as the structure of the Chinese character Fang, the inside articulation of cover 4 has movable insulation shield 5 and upper insulation cover plate 6, movable insulation shield 5 and upper insulation cover plate 6 split cover are set on the upside and downside of metal conductor part 13, the side view of movable insulation shield 5 is set up as U-shaped structure, thereby the insulation cover protection of metal conductor part 13 is set up;The outside wall of movable insulation shield 5 is provided with support 7, the damping pivot 8 of rotation is provided on support 7, the top end of damping pivot 8 is provided with stopper 9, when upper insulation cover plate 6 is covered in the top end of movable insulation shield 5, can be through the rotation of damping pivot 8, with stopper 9 is blocked in the top end of upper cover, avoid the unstable situation when movable insulation shield 5 and upper insulation cover plate 6 close.

[0023] As shown in Figures 1-3 The bottom wall of movable insulation shield 5 is provided with pull ring 10, when the line is powered off and needs to be tested and grounded, first use the insulation operating rod, pull open the pull ring 10 of movable insulation shield 5 bottom side, at this time movable insulation shield 5 opens, and metal conductor part 13 is exposed.

[0024] As shown in Figure 1 , 2The gear one 11 is connected with the gear two 12, and the gear two 12 is connected with the upper insulation cover plate 6, and the gear one 11 is connected with the movable insulation cover 5 through the pull ring 10.

[0025] In use, the grounding ring 1 is connected with the wire through the wire clamp fixing seat 2, and the wire clamp insulation protection sleeve 3 is installed, when the line needs to be grounded for inspection, the movable insulation cover 5 is opened through the pull ring 10, the gear one 11 is rotated when the movable insulation cover 5 is rotated, the gear two 12 is rotated through the gear one 11, and the upper insulation cover plate 6 is rotated and opened through the gear two 12, and the metal conductor part 13 is exposed, so that the grounding for inspection is completed, when the line needs to be bypassed without power, the movable insulation cover 5 is opened through the pull ring 10, the wire clamp fixing seat 2 is connected with the metal conductor part 13, the bypass system is built, and the bypass operation is performed without power.

[0026] The above describes the utility model and its implementation mode, and the description is not limited, and the embodiment shown in the drawings is only one of the utility model, and the actual structure is not limited. In summary, if a person skilled in the art is inspired, without departing from the utility model, similar structure modes and embodiments can be designed without creative design, which should belong to the protection scope of the utility model.

Claims

1. A full insulating bus clamp for a substation, comprising a grounding ring (1) and a clamp fixing seat (2), characterized in that: The wire clamp fixing seat (2) is sleeved on the grounding ring (1), the wire clamp fixing seat (2) is provided with a wire clamp insulation protective sleeve (3) on the outside, the grounding ring (1) is provided with a rubber insulation sheath, the bottom of the grounding ring (1) is a metal conductor part (13), the side of the grounding ring (1) is provided with a cover (4), the cover (4) is hinged with a movable insulation cover (5) and an upper insulation cover plate (6) on the inside, the movable insulation cover (5) and the upper insulation cover plate (6) are hinged on the upper and lower sides of the metal conductor part (13); the outer wall of the movable insulation cover (5) is provided with a supporting block (7), the supporting block (7) is rotatably provided with a damping rotating shaft (8), and the top end of the damping rotating shaft (8) is provided with a stop block (9).

2. The substation full insulated bus-tap, as recited in claim 1, characterized in that: The bottom wall of the movable insulation cover (5) is provided with a pull ring (10).

3. The substation full insulated bushing tap, as claimed in claim 2, wherein: The side view of the movable insulation cover (5) is provided with a U-shaped structure.

4. The substation full insulated bushing tap, as recited in claim 3, characterized in that: The outer wall of the cover (4) is provided with a gear one (11) and a gear two (12), the rotating center axis of the gear one (11) penetrates the cover (4) and is connected with the hinge shaft of the movable insulation cover (5) and the cover (4), and the rotating center axis of the gear two (12) penetrates the cover (4) and is connected with the hinge shaft of the upper insulation cover plate (6) and the cover (4).

5. The totally insulated bushing tap of Claim 1, wherein: The cover (4) is provided with a U-shaped structure.

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