CN211449975U

CN211449975U - Switching device for SF6 electrical equipment

Info

Publication number: CN211449975U
Application number: CN201920757273.9U
Authority: CN
Inventors: 夏宗杰; 倪汇川; 包文俊; 朱德亮; 权运良; 申磊; 杨波; 李传江; 王卫东; 章家其; 张�杰
Original assignee: State Grid Corp of China SGCC; Tongling Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Tongling Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date: 2019-05-23
Filing date: 2019-05-23
Publication date: 2020-09-08
Anticipated expiration: 2029-05-23

Abstract

The utility model belongs to SF6 electrical equipment field, concretely relates to a switching device for SF6 electrical equipment, including the sealed adapter of just can dismantling the connection of one end and SF6 electrical equipment, the sealed and detachable of the adapter other end is equipped with the joint head, the free end that the joint head links to each other with SF6 gas cylinder. The utility model has the advantages that: there is not unified standard on current SF6 electrical equipment fills the tonifying qi interface, and each producer carries out this factory standard separately, and the interface specification of the equipment of the different models of same producer is also not unified even, leads to the universal type very poor, the utility model discloses a switching device includes adapter and joint, can be used for quick SF6 electrical equipment and the SF6 gas cylinder of connecting different specification models, has good commonality.

Description

Switching device for SF6 electrical equipment

Technical Field

The utility model belongs to SF6 electrical equipment field, concretely relates to switching device for SF6 electrical equipment.

Background

With the rapid development of national modernization construction, the power transmission network is rapidly expanded, and a large amount of SF6 electrical equipment is put into operation. Manufacturers for producing SF6 electrical equipment at home and abroad are increasing day by day, and equipment with various models and specifications is also increasing day by day. However, as the electrical equipment charging and air supplementing interface has no unified standard, each manufacturer executes the standard of the manufacturer, and even the interface specifications of equipment of the same manufacturer and different models are not unified. Peripheral equipment such as SF6 gas detection instruments, vacuumizing devices, SF6 recovery devices and the like which are used for installing, testing and overhauling SF6 electrical equipment do not have uniform interface specifications and connection modes, and accessories such as various matched pipelines and joints are all five-door and eight-door and are disordered, so that great difficulty is brought to overhauling, operation and maintenance work.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides an adapter device for SF6 electrical equipment, which can effectively connect various types of SF6 electrical equipment with SF6 gas cylinders.

The utility model provides a following technical scheme:

the utility model provides a switching device for SF6 electrical equipment, includes that one end and SF6 electrical equipment are sealed and can dismantle the adapter of being connected, the adapter other end is sealed and detachable and is equipped with the joint, the free end that the joint was connected with the SF6 gas cylinder.

Preferably, the adapter is of a tubular structure, and two ends of the adapter are provided with internal threads.

Preferably, the clamping joint comprises an outer sleeve, wherein one end of the outer sleeve is provided with an external thread matched with the internal thread of the adapter, and the other end of the outer sleeve is provided with a clamping unit used for fixedly clamping a ventilation hose of an SF6 gas cylinder on the clamping joint.

Preferably, press from both sides tight unit and include inner skleeve, cutting ferrule and the snap ring of preparing by elastic material, the snap ring inboard constitutes the joint cooperation with the outer sleeve, be equipped with the lug on the cutting ferrule inner wall, the tubular structure outside that the cutting ferrule cover constitutes snap ring, outer sleeve is established to the cutting ferrule cover, the inner skleeve constitutes to cup joint the cooperation with the outer sleeve, the outer sleeve is worn out to the inner skleeve front end, the inner skleeve rear end is equipped with the spacing portion with outer sleeve inner wall zonulae occludens, the cutting ferrule can remove along tubular structure length direction and makes the lug can extrude the snap ring to make the snap ring press from both sides the clamp.

Preferably, the cutting sleeve is provided with an internal thread, and the outer sleeve is provided with an external thread which is matched with the internal thread of the cutting sleeve to form a thread.

The utility model has the advantages that:

there is not unified standard on current SF6 electrical equipment fills the tonifying qi interface, and each producer carries out this factory standard separately, and the interface specification of the equipment of the different models of same producer is also not unified even, leads to the universal type very poor, the utility model discloses a switching device includes adapter and joint, can be used for quick SF6 electrical equipment and the SF6 gas cylinder of connecting different specification models, has good commonality.

Drawings

Fig. 1 is a schematic structural diagram of the adapter device.

The designations in the drawings have the following meanings:

10-adapter 20-bayonet joint 21-outer sleeve 221-inner sleeve 222-bayonet 223-snap ring 224-projection

Detailed Description

The present invention will be described in detail with reference to the following embodiments.

Example 1

As shown in fig. 1, the adapter device for SF6 electrical equipment comprises an adapter 10 with one end screwed with SF6 electrical equipment 40, wherein a clamping connector 20 comprises an outer sleeve 21, one end of the outer sleeve 21 is provided with an external thread matched with the internal thread of the adapter 10, and the other end of the outer sleeve 21 is provided with a clamping unit for fixedly clamping a ventilation hose of an SF6 gas cylinder 30 on the clamping connector 20.

The clamping unit includes inner skleeve 221, cutting ferrule 222 and the snap ring 223 of preparing by elastic material, snap ring 223 inboard constitutes the joint cooperation with outer sleeve 21, be equipped with lug 224 on the cutting ferrule 222 inner wall, the tubular structure outside that snap ring 223, outer sleeve 21 constitute is established to cutting ferrule 222 cover, inner skleeve 221 constitutes the cup joint cooperation with outer sleeve 21, outer sleeve 21 is worn out to inner skleeve 221 front end, inner skleeve 221 rear end is equipped with the spacing portion with outer sleeve 21 inner wall zonulae occludens, be equipped with the internal thread on the cutting ferrule 222, be equipped with the external screw thread on the outer sleeve 21, cutting ferrule 222 makes lug 224 can extrude snap ring 223 through screw-thread fit along tubular structure length direction removal to make snap ring 223 press from both sides the tight at inner skleeve.

The working process of the utility model is as follows:

the clamping head matched with the threaded interface of the SF6 electrical equipment is selected firstly, the clamping head and the adapter are connected after screwing, the ventilation hose of the SF6 gas cylinder is inserted into the inner sleeve, the clamping sleeve is rotated, the clamping ring can be extruded through the convex block, and therefore the clamping ring clamps the ventilation hose of the SF6 gas cylinder at the front end of the inner sleeve, and connection of the SF6 electrical equipment and the SF6 gas cylinder is achieved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The switching device for the SF6 electrical equipment is characterized by comprising an adapter (10) with one end hermetically and detachably connected with SF6 electrical equipment (40), wherein a clamping connector (20) is hermetically and detachably arranged at the other end of the adapter (10), and the free end of the clamping connector (20) is connected with an SF6 gas cylinder (30);

the adapter (10) is of a tubular structure, and two ends of the adapter are provided with internal threads;

the clamping joint (20) comprises an outer sleeve (21), wherein one end of the outer sleeve (21) is provided with an external thread matched with the internal thread of the adapter (10), and the other end of the outer sleeve (21) is provided with a clamping unit used for fixedly clamping a ventilation hose of an SF6 gas cylinder (30) on the clamping joint (20);

clamping unit includes inner skleeve (221), cutting ferrule (222) and snap ring (223) by elastic material preparation, snap ring (223) inboard constitutes the joint cooperation with outer sleeve (21), be equipped with lug (224) on cutting ferrule (222) inner wall, the tubular structure outside that snap ring (223), outer sleeve (21) constitute is established to cutting ferrule (222), inner skleeve (221) and outer sleeve (21) constitute and cup joint the cooperation, outer sleeve (21) are worn out to inner skleeve (221) front end, inner skleeve (221) rear end is equipped with the spacing portion with outer sleeve (21) inner wall zonulae occludens, cutting ferrule (222) can move along tubular structure length direction and make lug (224) can extrude snap ring (223) to make snap ring (223) press from both sides the air hose clamp of SF6 gas cylinder at inner skleeve (221) front end.

2. Switching device for SF6 electrical equipment as claimed in claim 1, wherein the cutting sleeve (222) is provided with an internal thread and the outer sleeve (21) is provided with a cutting sleeve internal thread forming a screw-fit external thread.