Anti-icing structure for clapper-type grounding switch

Abstract

The utility model relates to an anti-icing structure for a clapper type grounding switch. The anti-icing structure is characterized by comprising a static contact rainproof cover and a moving contact anti-icing module, by adding the static contact anti-icing cover, the surface of the grounding switch static contact is protected from icing; the movable contact anti-icing module is additionally arranged, rainwater is guided to flow out, the surface of the movable contact of the grounding switch is protected against icing, meanwhile, the movable contact anti-icing module adopts a spring piece structural design, an anti-icing cover on the movable contact is separated in the closing process, and the ice breaking function can be achieved; the structure is simple and the quality is reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to earthing switch technical field especially relates to a kind of anti-icing structures for clapping earthing switch. BACKGROUND

[0002] Earthing switch is single column, vertical fracture's outdoor electrical equipment, and three single-pole earthing switches are composed of a group of three-pole earthing switch.Three-pole earthing switch is operated by a SRCJ3 / SRCS operating mechanism.Earthing switch is composed of base, support insulator, static contact, moving contact, conducting pipe and other parts.Support insulator is installed on base and is perpendicular to base, and earthing switch static contact is installed above support insulator.

[0003] Static contact part is assembled in pairs, and clamps contact by its own clamping force, to achieve the purpose of contact conduction, and its action is clapping into type.Electrical circuit, except moving and static contact contact, uses fixed connection method, to achieve the effect of maintenance-free.When passing through short-circuit current, contact finger generates electric power and clamps moving contact itself.At present, JW10 type clapping earthing switch moving and static contact part does not have reliable anti-icing structure, and moving and static contact is easy to accumulate ice layer in freezing rain extreme weather, leading to the phenomenon that earthing switch cannot effectively open and close.

[0004] Therefore, it is obvious that the design of anti-icing structure needs to be increased to ensure reliable opening and closing operation in freezing rain weather and improve line operation reliability. INVENTION CONTENTS

[0005] The technical problem to be solved by the utility model is to provide an anti-icing structure for clapping earthing switch, which can solve the problem of surface icing of earthing switch in freezing rain weather and unreliable opening and closing operation.

[0006] To solve the above technical problem, the technical scheme of the utility model is as follows: an anti-icing structure for clapping earthing switch, which is characterized by comprising a static contact rain cover and a moving contact anti-icing module.

[0007] The static contact rain cover comprises a top baffle, a side baffle and an end baffle; the top baffle is horizontally installed on the top end of the static contact, and a bolt hole connected with the top end of the static contact is arranged on the top baffle near the end; the side baffle has a pair and is vertically arranged on both sides of the top baffle; and the end baffle is obliquely arranged at one end of the top baffle.

[0008] The movable contact anti-icing module comprises a movable contact clamp and a rubber scraper, the movable contact clamp comprises a U-shaped clamp and a spring sheet, the U-shaped clamp is nested on the movable contact, and bolt holes matched with the movable contact are arranged on the U-shaped clamp, the spring sheet is in a horn-shaped structure, and the spring sheet is connected at the end of the U-shaped clamp, and the end of the spring sheet away from the U-shaped clamp is bent inward to form a connecting panel, and the rubber scraper is locked on the connecting panel at the bent end of the spring sheet by bolts.

[0009] Further, in the closing process of the grounding switch, the movable contact drives the movable contact clamp to move towards the static contact, the rubber scraper is in contact with the static contact to form a plate, with the continuous movement of the grounding switch in the closing direction, the rubber scraper is pushed to the outside of the static contact by the contact finger of the static contact, so that the movable contact smoothly enters the inside of the static contact, and the closing is realized, and the opening process of the grounding switch is opposite to the closing process, the rubber scraper returns to the original state, and the movable contact is protected.

[0010] The utility model has the advantages that:

[0011] 1) In the utility model, the static contact anti-icing cover is added to protect the surface of the static contact of the grounding switch, the movable contact anti-icing module is added to guide the rainwater to flow out and protect the surface of the movable contact of the grounding switch, the movable contact anti-icing module adopts the spring sheet structure design, the anti-icing cover on the movable contact is separated in the closing process, the ice breaking function is realized, the structure is simple, and the quality is reliable. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model will be further described in detail in combination with the drawings and specific embodiments.

[0013] Figure 1 It is a kind of anti-icing structure schematic diagram for the utility model's snap type grounding switch. DETAILED DESCRIPTION

[0014] To make the purpose, technical scheme and advantage of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, apparently, the described embodiments are part of the embodiments of the utility model, not all the embodiments.The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0015] Therefore, the following detailed description of embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the application.

[0016] As Figure 1 The utility model provides a kind of anti-icing structure for a snap-on grounding switch, including static contact rain shield 1 and movable contact anti-icing module 2.

[0017] Static contact rain shield 1 includes top baffle 11, side baffle 12 and end baffle 13;Top baffle 11 is horizontally installed on the top end of static contact, and the position close to the end of top baffle 11 is provided with bolt hole connected with the top end of static contact;Side baffle 12 has a pair and is vertically arranged on the two sides of top baffle 11 respectively;End baffle 13 is obliquely arranged at one end of top baffle.

[0018] Movable contact anti-icing module 2 includes movable contact clamp 21 and rubber scraper 22;Movable contact clamp 21 includes U-shaped card and spring sheet;U-shaped card is nested on movable contact, and U-shaped card is provided with bolt hole matched with movable contact locking;Spring sheet is in horn structure, and spring sheet is connected at the end of U-shaped card;The end of spring sheet away from U-shaped card is bent inward to form a connecting panel;Rubber scraper 22 is locked on the connecting panel of spring sheet end bending portion by bolt.

[0019] In the process of closing of grounding switch, movable contact drives movable contact clamp to move to static contact, and rubber scraper 22 contacts static contact and forms a mold plate, and with the continuous movement of grounding switch to closing direction, rubber scraper 22 is pushed to the outside of static contact by the contact finger of static contact, so that movable contact smoothly enters the inside of static contact, and closing is realized;The opening process of grounding switch is opposite to the closing process, and rubber scraper 22 returns to original state, and plays a role in protecting movable contact.

[0020] The working principle of the utility model is: by increasing static contact anti-icing cover, the surface of grounding switch static contact cannot be iced;By increasing movable contact anti-icing module, guide rainwater to flow out, protect the surface of grounding switch movable contact from icing, and at the same time, movable contact anti-icing module adopts spring sheet structure design, movable contact anti-icing cover separates in the process of closing, and ice breaking function can be realized;Simple structure, reliable quality

[0021] The person skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. An anti-icing structure for a flick-type grounding switch, characterized by: The static contact rain-proof cover and the dynamic contact anti-icing module are provided. The static contact rain-proof cover comprises a top baffle, side baffles and end baffles; the top baffle is horizontally installed on the top end of the static contact, and a bolt hole is arranged on the top baffle near the end; the side baffles are arranged on both sides of the top baffle; and the end baffles are arranged on one end of the top baffle. The dynamic contact anti-icing module comprises a dynamic contact clamp and a rubber scraper; the dynamic contact clamp comprises a U-shaped clamp and a spring sheet; the U-shaped clamp is nested on the dynamic contact, and a bolt hole is arranged on the U-shaped clamp for locking the dynamic contact; the spring sheet is in a horn-shaped structure, and the spring sheet is connected to the end of the U-shaped clamp; the end of the spring sheet away from the U-shaped clamp is bent inward to form a connecting panel; and the rubber scraper is locked on the connecting panel at the bent end of the spring sheet by a bolt.

2. The anti-icing structure for a throw-on type grounding switch according to claim 1, characterized in that: In the closing process of the grounding switch, the dynamic contact drives the dynamic contact clamp to move towards the static contact; when the rubber scraper contacts the static contact, a type plate is generated; as the grounding switch continues to move in the closing direction, the rubber scraper is pushed to the outside of the static contact by the contact finger of the static contact, so that the dynamic contact smoothly enters the inside of the static contact, and the closing is realized; the opening process of the grounding switch is opposite to the closing process, and the rubber scraper returns to the original state, thereby protecting the dynamic contact.

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