An insulating sheath for outdoor high-voltage disconnecting switch

Abstract

The utility model relates to the technical field of high-voltage disconnecting switches, and discloses an insulating sheath of an outdoor high-voltage disconnecting switch, comprising a sheath body, the lower end of the sheath body being fixedly connected to a wire end sheath, the interior of the sheath body comprising: a clamping assembly, the clamping assembly comprising a plurality of clamping springs, a plurality of spherical clamping grooves being provided on the rear side of an inner wall of the sheath body, a plurality of spherical clamping blocks being fixedly connected on the front side of an inner wall of the sheath body, the utility model provides the clamping springs, after the sheath body is sleeved on the disconnecting switch, the clamping springs clamp the high-voltage disconnecting switch to prevent the sheath body from being separated from the high-voltage disconnecting switch, under the action of the spherical clamping grooves and the spherical clamping blocks, the open part of the inner side of the sheath body can be fixed, thereby fixing the sheath body on the high-voltage disconnecting switch, and under the action of a sealing strip and a first sealing clamping groove, the inner side of the sheath body is sealed to prevent dust and water from entering the interior of the sheath body.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage isolating switches, in particular to an insulating sheath of an outdoor high-voltage isolating switch. Background Art

[0002] High-voltage disconnectors are important switchgear in the electrical systems of power plants and substations. They must be used in conjunction with high-voltage circuit breakers. Disconnectors are suitable for indoor installations with three-phase AC 50Hz and rated voltage 12KV. They are used to connect, disconnect or convert lines when high-voltage equipment is under voltage but under load.

[0003] When a high-voltage disconnector is in use, an insulating sheath is required for protection. Most of the existing high-voltage disconnectors have openings inside when in use, and the insulating sheath is directly put on the high-voltage disconnector for use. However, the tightness between the insulating sheath and the high-voltage disconnector is poor, which can easily cause the insulating sheath to detach from the high-voltage disconnector, and its sealing is poor. Therefore, we propose an insulating sheath for an outdoor high-voltage disconnector. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an insulating cover for an outdoor high-voltage disconnecting switch, which has the advantages of being provided with a clamping spring piece. After the cover body is put on the disconnecting switch, the clamping spring piece clamps the high-voltage disconnecting switch to prevent the cover body from being separated from the high-voltage disconnecting switch. Under the action of the spherical clamping groove and the spherical clamping block, the open part on the inner side of the cover body can be fixed, so that the cover body is fixed on the high-voltage disconnecting switch, and under the action of the sealing strip and the first sealing clamping groove, the inner side of the cover body is sealed to prevent dust and water from entering the interior of the cover body, etc. The utility model solves the problem that most of the existing high-voltage disconnecting switches have an opening inside when in use, and the insulating cover is directly put on the high-voltage disconnecting switch for use, but the tightness between the insulating cover and the high-voltage disconnecting switch is poor, which easily causes the insulating cover to be separated from the high-voltage disconnecting switch, and the sealing performance is poor.

[0006] (II) Technical solution

[0007] In order to achieve the above purpose, by setting a clamping spring sheet, after the sheath body is sleeved on the isolating switch, the clamping spring sheet clamps the high-voltage isolating switch to prevent the sheath body from being separated from the high-voltage isolating switch, and under the action of the spherical clamping groove and the spherical clamping block, the open part of the inner side of the sheath body can be fixed, so that the sheath body is fixed on the high-voltage isolating switch, and under the action of the sealing strip and the first sealing clamping groove, the inner side of the sheath body is sealed to prevent dust and water from entering the interior of the sheath body. The utility model provides the following technical solutions: an outdoor high-voltage isolating switch insulating sheath, comprising a sheath body, the lower end of the sheath body is fixedly connected to a wired end sheath, and the interior of the sheath body comprises:

[0008] A clamping assembly, the clamping assembly comprising a plurality of clamping springs, a plurality of spherical clamping grooves are provided on the rear side of the inner wall of the sheath body, and a plurality of spherical clamping blocks are fixedly connected to the front side of the inner wall of the sheath body;

[0009] A sealing assembly, wherein the sealing assembly includes a sealing ring, a sealing strip is fixedly connected to the rear side of the inner wall of the sheath body, a first sealing groove is opened on the front side of the inner wall of the sheath body, and a clamping spring is provided. After the sheath body is put on the isolating switch, the clamping spring clamps the high-voltage isolating switch to prevent the sheath body from being separated from the high-voltage isolating switch. Under the action of the spherical groove and the spherical clamping block, the open part of the inner side of the sheath body can be fixed, so that the sheath body is fixed on the high-voltage isolating switch, and under the action of the sealing strip and the first sealing groove, the inner side of the sheath body is sealed to prevent dust and water from entering the interior of the sheath body.

[0010] As a preferred technical solution of the present invention, the left end of the clamping spring is fixedly connected to the left side of the inner wall of the sheath body, and the surface of the sealing ring is fixedly connected to the left side of the inner wall of the sheath body. By setting the clamping spring, it is convenient to clamp the sheath body on the high-voltage disconnector.

[0011] As a preferred technical solution of the utility model, a sealing block is fixedly connected to the rear side of the inner wall of the sealing ring, and a second sealing groove is opened on the front side of the inner wall of the sealing ring. By arranging the sealing block and the second sealing groove, the lower side of the sealing ring is kept sealed.

[0012] As a preferred technical solution of the utility model, a plurality of fastening components are arranged on the surface of the sheath body, and the fastening components include two limiting rings, and a clamping ring is commonly arranged on the opposite side of the two limiting rings, and both ends of the clamping ring are fixedly connected with a fastening ring. By arranging the fastening components, the surface of the sheath body is fixed again.

[0013] As a preferred technical solution of the utility model, the inner wall of the limiting ring is fixedly connected to the surface of the sheath body, and the clamping ring is limited by providing the limiting ring.

[0014] As a preferred technical solution of the utility model, the surface of the wire end sheath is threadedly connected with a fastening sleeve, and the lower side of the inner wall of the fastening sleeve is fixedly connected with a sealing ring. Under the action of the fastening sleeve, the wire end sheath is fixed, the fastening sleeve is fixed, and under the action of the sealing ring, the line is sealed.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides an outdoor high-voltage isolating switch insulating sheath, which has the following beneficial effects:

[0017] 1. The insulating sheath is provided with a clamping spring piece. After the sheath body is put on the isolating switch, the clamping spring piece clamps the high-voltage isolating switch to prevent the sheath body from being separated from the high-voltage isolating switch. Under the action of the spherical clamping groove and the spherical clamping block, the open part inside the sheath body can be fixed, so that the sheath body is fixed on the high-voltage isolating switch, and under the action of the sealing strip and the first sealing clamping groove, the inner side of the sheath body is sealed to prevent dust and water from entering the interior of the sheath body.

[0018] 2. The insulating sheath fixes the wire end sheath and the fastening sheath under the action of the fastening sheath, and seals the line under the action of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the overall front side cross-sectional structure of the utility model.

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the left side of the sheath main body of the utility model.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the clamping spring piece of the utility model.

[0023] In the figure: 1. sheath body; 2. wire end sheath; 21. fastening sleeve; 22. sealing ring; 3. clamping assembly; 31. clamping spring; 32. spherical slot; 33. spherical clamping block; 34. fastening assembly; 341. limiting ring; 342. clamping ring; 343. fastening ring; 4. sealing assembly; 41. sealing ring; 411. sealing block; 412. second sealing slot; 42. sealing strip; 43. first sealing slot. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] Example 1

[0026] Reference Figure 1-4 , which is the first embodiment of the utility model, provides an outdoor high-voltage disconnector insulating sheath, including a sheath body 1, the inner side of the sheath body 1 is set to an open state, the sheath body 1 is designed according to the shape of the high-voltage disconnector, the lower end of the sheath body 1 is fixedly connected to the wire end sheath 2, and the interior of the sheath body 1 includes:

[0027] The clamping assembly 3 includes a plurality of clamping springs 31. A plurality of spherical clamping grooves 32 are provided on the rear side of the inner wall of the sheath body 1. A plurality of spherical clamping blocks 33 are fixedly connected to the front side of the inner wall of the sheath body 1. The spherical clamping grooves 32 and the spherical clamping blocks 33 are arranged at the lower part of the inside of the sheath body 1.

[0028] The sealing assembly 4 includes a sealing ring 41, the bottom of the sealing ring 41 is in an open state, the sealing ring 41 is arranged on the left side of the clamping spring 31, a sealing strip 42 is fixedly connected to the rear side of the inner wall of the sheath body 1, and a first sealing groove 43 is opened on the front side of the inner wall of the sheath body 1.

[0029] The left ends of the clamping springs 31 are fixedly connected to the left side of the inner wall of the sheath body 1 , and the surface of the sealing ring 41 is fixedly connected to the left side of the inner wall of the sheath body 1 .

[0030] A sealing block 411 is fixedly connected to the rear side of the inner wall of the sealing ring 41 , and a second sealing groove 412 is formed on the front side of the inner wall of the sealing ring 41 .

[0031] A plurality of fastening components 34 are provided on the surface of the sheath body 1, and the fastening components 34 include two limiting rings 341. The inner walls of the limiting rings 341 are fixedly connected to the surface of the sheath body 1. The opposite sides of the plurality of limiting rings 341 are all set to an open state. A retaining ring 342 is commonly provided on the opposite sides of the two limiting rings 341. Both ends of the retaining ring 342 are fixedly connected with a fastening ring 343. The inner walls of the two fastening rings 343 are commonly fixedly connected by bolts.

[0032] The inner wall of the limiting ring 341 is fixedly connected to the surface of the sheath body 1 .

[0033] During use, the sheath body 1 is put on the high-voltage disconnector, and the multiple spherical clamping blocks 33 are pressed and clamped into the spherical clamping grooves 32. At this time, the sealing strip 42 on the sheath body 1 is clamped into the first sealing clamping groove 43, so that the inside of the sheath body 1 remains sealed, and the sealing ring 41 seals the high-voltage disconnector. The sealing clamping block 411 on the rear side of the sealing ring 41 is clamped into the second sealing clamping groove 412 to maintain the sealing performance of the sealing ring 41, and the clamping spring 31 is clamped on the high-voltage disconnector;

[0034] After the sheath body 1 is installed, the clamping ring 342 is sleeved between the limiting rings 341 , and the fastening ring 343 is fixed by bolts, and the sheath body 1 is fixed again from the outside, so as to maintain the tightness of the sheath body 1 .

[0035] Example 2

[0036] Reference Figure 1-4 , which is the second embodiment of the utility model, a fastening sleeve 21 is threadedly connected to the surface of the wire end sheath 2, and a sealing ring 22 is fixedly connected to the lower side of the inner wall of the fastening sleeve 21.

[0037] During use, after the sheath body 1 is installed on the high-voltage disconnector, the fastening sleeve 21 is installed on the line end sheath 2, and under the action of the sealing ring 22, the part of the connecting wire is sealed, thereby sealing the line end sheath 2.

[0038] The remaining structures are the same as those of Example 1.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An outdoor high-voltage disconnector insulating sheath, comprising a sheath body (1), the lower end of the sheath body (1) being fixedly connected to a wire end sheath (2), characterized in that: The interior of the sheath body (1) comprises: A clamping assembly (3), the clamping assembly (3) comprising a plurality of clamping springs (31), a plurality of spherical clamping grooves (32) being provided on the rear side of the inner wall of the sheath body (1), and a plurality of spherical clamping blocks (33) being fixedly connected to the front side of the inner wall of the sheath body (1); A sealing assembly (4), the sealing assembly (4) comprising a sealing ring (41), a sealing strip (42) fixedly connected to the rear side of the inner wall of the sheath body (1), and a first sealing groove (43) opened on the front side of the inner wall of the sheath body (1).

2. The insulating sheath of an outdoor high-voltage disconnector according to claim 1, characterized in that: The left ends of the clamping springs (31) are fixedly connected to the left side of the inner wall of the sheath body (1), and the surface of the sealing ring (41) is fixedly connected to the left side of the inner wall of the sheath body (1).

3. The insulating sheath of an outdoor high-voltage disconnector according to claim 2, characterized in that: A sealing block (411) is fixedly connected to the rear side of the inner wall of the sealing ring (41), and a second sealing groove (412) is provided on the front side of the inner wall of the sealing ring (41).

4. The insulating sheath of an outdoor high-voltage disconnector according to claim 3 is characterized in that: A plurality of fastening components (34) are arranged on the surface of the sheath body (1), and the fastening components (34) include two limiting rings (341), and a snap ring (342) is arranged on the opposite side of the two limiting rings (341), and both ends of the snap ring (342) are fixedly connected with a fastening ring (343).

5. The insulating sheath of an outdoor high-voltage disconnector according to claim 4, characterized in that: The inner wall of the limiting ring (341) is fixedly connected to the surface of the sheath body (1).

6. An outdoor high-voltage disconnector insulating sheath according to claim 5, characterized in that: A fastening sleeve (21) is threadedly connected to the surface of the wire end sheath (2), and a sealing ring (22) is fixedly connected to the lower side of the inner wall of the fastening sleeve (21).

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