Visual insulating sleeve for switch

Abstract

The utility model provides a visualized insulating sleeve for a switch, which comprises three sections of insulating sleeves, the middle section is a visualized insulating sleeve, and the two ends of the visualized insulating sleeve are connected with the insulating sleeves through flanges; the outer layer of the insulating sleeve is provided with an insulating umbrella skirt, and the two ends of the visual insulating sleeve are provided with a flange and a sealing rubber ring (for preventing air leakage) through a pouring process. According to the utility model, the switch is closed and visualized through segmented design and selection of optical-level visualized insulating materials.

Description

TECHNICAL FIELD

[0001] The present patent application relates to the field of switchgear, in particular a visual insulation sleeve for switch. BACKGROUND

[0002] In open power stations, switches are long-term eroded by wind and sand and sunlight, so the failure rate is high. The failure rate of SF6 circuit breaker is greatly reduced, and the maintenance period is greater than 15 years, while the maintenance period of the disconnector is about 2-6 years. The insulation sleeve is crucial to prolong the maintenance period of the switch. The Chinese patent with application number 202120659269.6 and name 35KV / 1000KV full current outdoor sealed high voltage switch discloses the following technical features: it further includes a transparent sleeve filled with insulating gas and a support sleeve, the transparent sleeve is made of insulating transparent material, and a first wiring terminal and a second wiring terminal are respectively installed at both ends of the transparent sleeve, and the upper contact unit and the movable contact unit are arranged in the transparent sleeve. The upper contact base and the movable contact base are respectively fixedly connected to the first wiring terminal and the second wiring terminal. The transparent sleeve in the patent is one-piece, and there are problems of difficult manufacturing and high manufacturing cost in actual production. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a visual insulation sleeve for switch, solving the problems of difficult manufacturing and high manufacturing cost of the existing transparent sleeve, and meeting the characteristics requirements of the visualization of the break for the closed switch.

[0004] The technical solution for realizing the utility model is as follows:

[0005] A visual insulation sleeve for switch includes three insulation sleeves, the middle section is a visual insulation sleeve, and both ends of the visual insulation sleeve are connected to the insulation sleeves. An insulating umbrella skirt is arranged on the outer layer of the insulation sleeve.

[0006] Further, the visual insulation sleeve is made of optical-grade visual insulation material.

[0007] Further, both ends of the visual insulation sleeve are provided with flanges through a casting process.

[0008] Further, the flanges are provided with sealing rings.

[0009] Further, both ends of the insulation sleeve are provided with flanges through interference fit, and the flange close to one end of the visual sleeve is connected to the flange of the visual sleeve.

[0010] Further, the flanges at the connection between the two ends of the insulation sleeve and the visual insulation sleeve are fastened by screws.

[0011] Further, the visual insulation sleeve is 20-30cm long (which can be increased or decreased according to requirements), and the insulation sleeve is 40-50cm long (which can be increased or decreased according to requirements).

[0012] Further, the switch is a full voltage level switch

[0013] Compared with the prior art, the utility model has the advantages that: the utility model discloses the closed transformation of the isolating switch, is convenient for manufacturing and mass production, reduces the production cost, and can effectively solve the problems of abnormal heating of the conductive loop of the open isolating switch and the jamming of the transmission component, and can also inherit the advantages of the open switch, such as clear wiring and flexible maintenance, and can also integrate the advantages of the closed equipment, such as maintenance-free, to further improve the reliability of the equipment operation. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure diagram of the 110kV visual insulation sleeve. DETAILED DESCRIPTION

[0015] The utility model provides a kind of visual insulation sleeve for switch, it is the full-closed insulation sleeve of three-section insulation sleeve composition, middle section is visual insulation sleeve 4, the both ends of visual insulation sleeve connect insulation sleeve 3, the outer layer of the insulation sleeve is equipped with insulation umbrella skirt 2, and this insulation sleeve is used for full voltage level switch.

[0016] First section and third section insulation sleeve are conventional hollow insulation sleeve, and flange 1 is assembled by interference fit mode at its both ends.

[0017] Middle section selects optical-grade visual insulation material as main material, and flange 1 is assembled by pouring process at its both ends, and sealing ring (to prevent air leakage) is equipped, and three sections are connected by screw fastening flange;The wall thickness L4 of middle section is thicker than conventional hollow insulation sleeve, and sleeve wall thickness is set according to different voltage levels, different materials and different pressures to meet the needs of mechanical strength and glue mounting process assembly.

[0018] The visual sleeve length L3 is 20-30cm (which can be increased or decreased according to requirements), and the first section insulation sleeve length L1 and the third section insulation sleeve length L2 are 40-50cm (which can be increased or decreased according to requirements).

[0019] The utility model discloses the segmented design and the selection of optical-grade visual insulation material, which is convenient for manufacturing and mass production, reduces the production cost, improves the reliability of switch operation, realizes the maintenance-free or low-maintenance of switch;The utility model discloses the internal action situation of visual, which is convenient for maintenance and maintenance.

[0020] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A visual insulating sleeve for a switch, characterized in that: The utility model comprises three sections of insulating sleeves, the middle section is a visual insulating sleeve, both ends of the visual insulating sleeve are connected to insulating sleeves, and the outer layers of the insulating sleeves at the two ends are provided with insulating umbrella skirts.

2. A visible insulating sleeve for a switch according to claim 1, characterized in that: The visual insulating sleeve is made of optical-grade visual insulating material.

3. The visual insulating sleeve for a switch according to claim 1, characterized in that: Both ends of the visible insulating sleeve are assembled with flanges through a casting process.

4. A visible insulating sleeve for a switch according to claim 3, characterized in that: The flange is equipped with a sealing ring.

5. The visual insulating sleeve for a switch according to claim 3, characterized in that: Both ends of the insulating sleeve are equipped with flanges by interference fit, and the flange close to one end of the visible insulating sleeve is connected to the flange of the visible insulating sleeve.

6. The visual insulating sleeve for a switch according to claim 5, characterized in that: The insulating sleeves at both ends and the flanges at the connection points of the visible insulating sleeves are fastened by screws.

7. The visual insulating sleeve for a switch according to claim 1, characterized in that: The length of the visual insulating sleeve is 20-30 cm, and the length of the insulating sleeve is 40-50 cm.

8. A visible insulating sleeve for a switch according to any one of claims 1 to 7, characterized in that: The switch is a full voltage level switch.

Images