CN2914271Y

CN2914271Y - Transformer low-tension bushing protecting cover

Info

Publication number: CN2914271Y
Application number: CN 200620124396
Authority: CN
Inventors: 刘进生
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-11
Filing date: 2006-07-11
Publication date: 2007-06-20
Anticipated expiration: 2016-07-11

Abstract

A protective cover of low-voltage bushing of transformer comprises an upper cover and a lower cover, the same end thereof is equipped with corresponding downward curved end. The upper cover and lower cover are clamped together via the clamping mechanism, and constitute a cavity tallied with the outer profile of the low-voltage bushing of transformer, the end face of the curved end and the other end of the cavity are separately equipped with an insulation bottle used for crossing the low-voltage bushing of transformer, as well as a through-hole of output wire; the upper cover and lower cover are made up of insulation materials. The utility model has the advantages that the protective cover can cover the conductive part of the output terminal in the airtight cavity, therefore preventing the dust, rain water, and snowflake from falling on the surface of ceramic bottle, and avoiding leakage current, short circuit, and contact between the output wire and transformer shell; once being arranged and clamped together, the direct clamping mechanism of the upper cover and lower cover can not be opened, thereby preventing the occurrence of power stealing (if the clamping mechanism is destroyed, the power stealing conduct will be found). The utility model has simple structure, which is convenient for arrangement, and is easy to be promoted.

Description

Transformer low voltage casing safety cover

Technical field

The utility model relates to power equipment, specifically is a kind of transformer low voltage casing safety cover, is used to be enclosed within distribution transformer low-voltage output outside, has anti-electricity-theft, protection against electric shock, prevents to cause because of sleet function such as electric leakage.

Background technology

The low-tension bushing of existing distribution transformer (low-voltage output) passes the shell top of transformer by porcelain vase, and exposes outside.This exposed low-tension bushing surpasses under the situation of porcelain vase height at porcelain vase surface deposition one deck dust chance rainwater or heavy snow ulking thickness, just might cause electric leakage or short circuit between outlet line and the transformer case, cause the fault or the unsafe problems of electric power networks; Also exist in addition from the phenomenon of the direct wiring electricity consumption of the low-tension bushing of transformer (stealing).

Summary of the invention

The purpose of this utility model just provides a kind of transformer low voltage casing safety cover, causes electric leakage or short circuit between outlet line and the transformer case to solve sleet that prior art exists, causes the fault or the unsafe problems of electric power networks; And from the problem of the direct wiring electricity consumption of the low-tension bushing of transformer (stealing).

The technical solution of the utility model is: comprise loam cake and lower cover, both same ends are equipped with corresponding downward bent-up end, described loam cake and lower cover are connected together by clamping mechanism, and constitute a cavity that coincide with transformer low voltage jacket exterior profile phase, be respectively equipped with at the bent-up end end face of this cavity and the other end and be used to pass the insulating bottle of described transformer low voltage sleeve pipe and the through hole of output lead; Described loam cake and lower cover are made by flame-retardant insulating material.

Described clamping mechanism comprises two pairs of protruding rails that are slidingly matched mutually and chute, and two pairs of corresponding mutually trip and draw-in grooves; Described trip and draw-in groove are located at the intersection on the bent-up end both sides of described loam cake and lower cover respectively, and trip inserts draw-in groove and relies on the mutual clamping of elasticity of this trip; Described protruding rail and chute are located at the intersection on the other end both sides of described loam cake and lower cover respectively, and protruding rail inserts in the chute.

Be provided with protuberance at described loam cake and lower cover middle part, an end adjacent with described bent-up end in the lower end of this protuberance is provided with discharge outlet.

Top at the bent-up end of described loam cake is provided with the portion of arching upward.

Be provided with mutual corresponding through hole at described loam cake with both sides between the lower cover.

Described insulating material is a transparent plastic.

The utility model has the advantages that: the current-carrying part of lead-out terminal can be covered in the airtight cavity, prevent that dust, rainwater and snowflake from dropping on the porcelain vase surface, avoid to cause thus electric leakage, short circuit and contact between outlet line and the transformer case; In a single day the direct clamping mechanism of loam cake and lower cover is installed to be connected together and just can not be opened, and has prevented the generation (if it is smashed, then can be found electricity filching behavior) of stealing electricity phenomenon.Simple in structure, easy for installation, be easy to promote.

Description of drawings

Fig. 1 is the general structure schematic diagram of the utility model side;

Fig. 2 is a sectional structure schematic diagram of the present utility model;

Fig. 3 is the vertical view of Fig. 1;

Fig. 4 is the upward view of Fig. 1;

Fig. 5 is the left view of Fig. 1;

Fig. 6 is the right view of Fig. 1;

Fig. 7 is the lateral plan of loam cake of the present utility model;

Fig. 8 is the left view of Fig. 7;

Fig. 9 is the cutaway view of lower cover of the present utility model;

Figure 10 is the left view of Fig. 9;

Figure 11 is the right view of Fig. 9;

Structural representation when Figure 12 is of the present utility model the application.

Embodiment

Referring to Fig. 1～Figure 12, the utility model is made of loam cake 1 and lower cover 2 two parts, both are connected together by clamping mechanism, and loam cake 1 and lower cover 2 also constitute a cavity with identical similar "  " shape that has bent-up end 13 of transformer low voltage jacket exterior profile phase.

Wherein laterally essential part is a cylinder, and loam cake 1 and lower cover respectively account for half, and the left end center is provided with reducing 14.Be provided with outside protuberance (constituting) by the protuberance 11 of loam cake 1 and the protuberance 23 of lower cover 2 at the middle part of described cylinder.The left side of the bent-up end 13 of loam cake 1 is an open design, and corresponding with it is the bent-up end (platy structure) 27 of lower cover 2, and when loam cake 1 was connected together with lower cover 2, both bent-

up ends

13 and 27 were docking together and constitute the cavity of bent-up end.Be provided with the reducing plate 24 that is connected with the bent-up end 27 of lower cover 2 in the lower end of this bent-up end cavity and constitute through hole, be used to pass the insulating bottle 4 (referring to Figure 12) of described transformer low voltage sleeve pipe with 15, two the reducing plates 24 of reducing plate that are connected with loam cake bent-up end 13 lower ends and 15.

Described loam cake 1 and lower cover 2 are made by flame-retardant insulating material, are preferably transparent plastic, make of injection moulding process.

Described clamping mechanism is by two pairs of protruding rails that are slidingly matched mutually 17 and chute 18, and the trip 25 of two pairs of mutual correspondences and draw-in groove 19 compositions.Described trip 25 and draw-in groove 19 are located at the intersection on the bent-up end both sides of described loam cake 1 and lower cover 2 respectively, and trip 25 inserts draw-in groove 19 and relies on the mutual clamping of elasticity of this trip 25.Described protruding rail 17 and chute 18 are located at the intersection on the other end both sides of described loam cake 1 and lower cover 2 respectively, and protruding rail 17 inserts in the chute 18.The face that tiltedly colludes of the trip 25 among this embodiment is (referring to Fig. 4) relatively, and trip 25 colludes edge in draw-in groove 19 after passing slotted hole A.

Be provided with discharge outlet 21 at the lower end of the protuberance 23 of described lower cover 2 and described bent-up end 27 adjacent ends, enter rainwater in case pass the left end reducing 14 of output lead, rainwater can compile by discharge outlet 21 at protuberance 23 discharges.

Also can be provided with the portion of arching upward 12, to hold the lead-out terminal connector at the top of the bent-up end 13 of described loam cake 1.

Also can be provided with mutual corresponding through hole 16 and 26 with both sides between the lower cover 2, can be used for loam cake 1 and be connected with the further of lower cover 2 at described loam cake 1.

The utility model when using, the current-carrying part 3 of lead-out terminal covered on cover 1 with the airtight cavity of lower cover 2 formations in (referring to Figure 12), the thin neck of porcelain insulator 4 is stuck in by two reducing

plates

24 and 15 and constitutes in the through hole, distribution wire 5 is passed in the reducing 14 of left end.Clamping machine between lid 1 and the lower cover 2 is inserted mutually and promptly finishes installation, very convenient.

Claims

1. transformer low voltage casing safety cover, it is characterized in that: comprise loam cake and lower cover, both same ends are equipped with corresponding downward bent-up end, described loam cake and lower cover are connected together by clamping mechanism, and constitute a cavity that coincide with transformer low voltage jacket exterior profile phase, be respectively equipped with at the bent-up end end face of this cavity and the other end and be used to pass the insulating bottle of described transformer low voltage sleeve pipe and the through hole of output lead; Described loam cake and lower cover are made by flame-retardant insulating material.

2. transformer low voltage casing safety cover according to claim 1 is characterized in that: described clamping mechanism comprises two pairs of protruding rails that are slidingly matched mutually and chute, and two pairs of corresponding mutually trip and draw-in grooves; Described trip and draw-in groove are located at the intersection on the bent-up end both sides of described loam cake and lower cover respectively, and trip inserts draw-in groove and relies on the mutual clamping of elasticity of this trip; Described protruding rail and chute are located at the intersection on the other end both sides of described loam cake and lower cover respectively, and protruding rail inserts in the chute.

3. transformer low voltage casing safety cover according to claim 1 is characterized in that: be provided with protuberance at described loam cake and lower cover middle part, an end adjacent with described bent-up end in the lower end of this protuberance is provided with discharge outlet.

4. transformer low voltage casing safety cover according to claim 3 is characterized in that: the top at the bent-up end of described loam cake is provided with the portion of arching upward.

5. transformer low voltage casing safety cover according to claim 1 is characterized in that: be provided with mutual corresponding through hole at described loam cake with both sides between the lower cover.

6. according to claim 1,2,3,4 or 5 described transformer low voltage casing safety covers, it is characterized in that: described insulating material is a transparent plastic.