10kV line drop-out fuse three-phase electrified insulation shielding cover

Abstract

The utility model discloses a three-phase electrified insulation shielding cover for a 10kV line drop-out fuse. The three-phase electrified insulation shielding cover comprises a left phase shielding cover, a middle phase shielding cover and a right phase shielding cover, the middle-phase shielding cover comprises a shielding cover body, one side, far away from a human body, of the shielding cover body is open, an upper pile head notch matched with an upper pile head of the drop-out fuse is formed in the top wall of the shielding cover body, and a lower pile head notch matched with a lower pile head of the drop-out fuse is formed in the bottom wall of the shielding cover body; the ends, away from the human body, of the two side walls of the shielding cover body are each provided with a fixed support shielding plate, and the bottom of each fixed support shielding plate is provided with a cross arm hanging port matched with a cross arm. The left phase shielding cover further comprises a first extension baffle which is vertically arranged at the top end, close to the side wall of the middle phase shielding cover, of the shielding cover body. The right-phase shielding cover further comprises a second extension baffle which is vertically arranged at the top end of the side wall, close to the middle-phase shielding cover, of the shielding cover body.

Description

Technical Field

[0001] The utility model relates to the field of insulating shielding covers, and particularly relates to a three-phase live insulating shielding cover for a 10kV line drop-out fuse. Background Art

[0002] At present, the projects of live replacement of drop-out fuses or live replacement of leads of drop-out fuses on 10kV overhead lines are carried out very widely. Mainly rely on insulating shielding blankets for shielding and cooperate with insulating baffles for isolation. However, using insulating shielding blankets for shielding is very cumbersome and has extremely high requirements for shielding technology. The insulating baffles are easy to be installed insecurely and cannot isolate the live drop-out fuse in all directions. Especially when operating in hot weather, using this traditional insulating shielding blanket and insulating baffle for operation has great safety risks and high technical requirements.

[0003] For the currently available live insulating shielding covers for drop-out fuses, generally, stub head notches are respectively arranged at the lower ends of the insulating shielding cover, and then the upper and lower stub heads of the drop-out fuse are respectively clamped in the inner notches of the stub heads of the insulating shielding cover. Then, special insulating components are also required to shield the stub heads exposed outside, and the operation is very troublesome. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a three-phase live insulating shielding cover for a 10kV line drop-out fuse to solve the problem that the currently available live insulating shielding covers for drop-out fuses are troublesome to operate.

[0005] To solve the above technical problems, in the first aspect, the utility model provides a three-phase live insulating shielding cover for a 10kV line drop-out fuse, which includes a left-phase shielding cover, a middle-phase shielding cover and a right-phase shielding cover;

[0006] The middle-phase shielding cover includes a shielding cover body. The side of the shielding cover body away from the human body is in an open shape. An upper stub head notch matching with the upper stub head of the drop-out fuse is arranged on the top wall of the shielding cover body, and a lower stub head notch matching with the lower stub head of the drop-out fuse is arranged on the bottom wall of the shielding cover body; at the ends of the two side walls of the shielding cover body away from the human body, a fixed support shielding plate is respectively arranged, and a cross-arm hanging interface matching with the cross-arm is arranged at the bottom of the fixed support shielding plate;

[0007] The left-phase shielding cover further includes a first extended baffle, and the first extended baffle is vertically arranged at the top end of the side wall of the shielding cover body close to the middle-phase shielding cover;

[0008] The right-phase shielding cover further includes a second extended baffle, and the second extended baffle is vertically arranged at the top end of the side wall of the shielding cover body close to the middle-phase shielding cover.

[0009] Further, a cross-arm shielding plate is provided at one end of the fixed support shielding plate near the cross-arm hanging interface, and the cross-arm shielding plate extends outward from the shielding cover body.

[0010] Further, an operation handle is provided on the side of the shielding cover body facing the human body.

[0011] Further, the operation handle is provided at the lower end of the side of the shielding cover body facing the human body.

[0012] In a second aspect, the present utility model provides another three-phase live insulation shielding cover for a 10 kV line drop fuse, including a shielding cover body. The side of the shielding cover body away from the human body is open. An upper stud notch matching the upper stud of the drop fuse is provided on the top wall of the shielding cover body, and a lower stud notch matching the lower stud of the drop fuse is provided on the bottom wall of the shielding cover body. One end of each of the two side walls of the shielding cover body away from the human body is provided with a fixed support shielding plate, and a cross-arm hanging interface matching the cross-arm is provided at the bottom of the fixed support shielding plate. A third extension baffle extending upward is provided on the left or right side of the top of the shielding cover body, and the third extension baffle is detachably connected to the shielding cover body.

[0013] Further, a bending portion bent inward toward the inside of the shielding cover body is provided at the end of the third extension baffle connected to the shielding cover body. Installation grooves matching the bending portion are provided at the tops of the two side walls of the shielding cover body. The installation grooves are formed by sinking from the two side walls of the shielding cover body toward the inside of the shielding cover body. After the bending portion extends into the installation groove, it is fixed in the installation groove through a fastener.

[0014] Further, convex platforms protruding inward are provided on the inner sides of the tops of the two side walls of the shielding cover body, and the installation grooves are formed by sinking from the inner sides of the convex platforms of the shielding cover body.

[0015] Further, a cross-arm shielding plate is provided at one end of the fixed support shielding plate near the cross-arm hanging interface, and the cross-arm shielding plate extends outward from the shielding cover body.

[0016] Further, an operation handle is provided on the side of the shielding cover body facing the human body.

[0017] Further, the operation handle is provided at the lower end of the side of the shielding cover body facing the human body.

[0018] The beneficial effects of the present utility model are as follows:

[0019] 1. By providing an extension plate at the top of the shielding cover, the upper stud of the drop fuse can be automatically isolated after the shielding cover is installed.

[0020] 2. By arranging a first extended baffle at the top of the side of the left-phase shielding cover facing the middle-phase shielding cover, and a second extended baffle at the top of the side of the right-phase shielding cover facing the middle-phase shielding cover; during shielding, first install the left-phase shielding cover and the right-phase shielding cover, and naturally isolate the middle-phase drop fuse. Therefore, the middle-phase shielding cover can achieve three-phase isolation without arranging an extended baffle, and this three-phase live-insulating shielding cover does not need to arrange two long baffles at the top of each shielding cover to face the upper terminal, reducing the weight of the shielding cover and saving production materials at the same time.

[0021] 3. By arranging detachably connected third extended baffles on both sides of the top of the shielding cover, the third extended baffles can be installed or not installed as needed during use; and during transportation, the length of the shielding cover can also be reduced by removing the third extended baffles, thus facilitating transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The same reference numerals are used to represent the same or similar parts in these drawings. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0023] Figure 1 It is a top view of the middle-phase shielding cover of an embodiment disclosed in the first aspect of the present utility model.

[0024] Figure 2 It is a top view of the left-phase shielding cover of an embodiment disclosed in the first aspect of the present utility model.

[0025] Figure 3 It is a top view of the right-phase shielding cover of an embodiment disclosed in the first aspect of the present utility model.

[0026] Figure 4 It is a bottom view of an embodiment disclosed in the first aspect of the present utility model.

[0027] Figure 5 It is a structural schematic diagram of an embodiment disclosed in the first aspect of the present utility model.

[0028] Figure 6 It is a structural schematic diagram of an embodiment disclosed in the first aspect of the present utility model.

[0029] Figure 7 It is a structural schematic diagram of an embodiment disclosed in the second aspect of the present utility model.

[0030] Figure 8 It is a structural schematic diagram of the bending part installation of an embodiment disclosed in the second aspect of the present utility model.

[0031] Wherein: 1. The shielding cover body; 11. The installation groove; 12. ; 2. The top wall; 21. The upper stud notch; 22. The first installation hole; 3. The fixing bracket shielding plate; 31. The cross-arm hanging interface; 4. The first extension baffle; 4A. The second extension baffle; 5. The operating handle; 6. The cross-arm shielding plate; 7. The bottom wall; 71. The lower stud notch; 8. The third extension baffle; 81. The bending part; 82. The second installation hole; 9. The fastener. Specific embodiments

[0032] In a first aspect, the present utility model discloses a three-phase live insulation shielding cover for a 10 kV line drop fuse, including a left-phase shielding cover, a middle-phase shielding cover, and a right-phase shielding cover. As Figure 1 shown, the middle-phase shielding cover includes a shielding cover body 1. The side of the shielding cover body 1 away from the human body is open. An upper stud notch 21 matching the upper stud of the drop fuse is provided on the top wall 2 of the shielding cover body 1, and a lower stud notch 71 matching the lower stud of the drop fuse is provided on the bottom wall 7 of the shielding cover body 1; One fixing bracket shielding plate 3 is provided at each end of the two side walls of the shielding cover body 1 away from the human body, and a cross-arm hanging interface 31 matching the cross-arm is provided at the bottom of the fixing bracket shielding plate 3. As Figure 2 shown, the left-phase shielding cover further includes a first extension baffle 4, and the first extension baffle 4 is vertically arranged at the top of the side wall of the shielding cover body 1 close to the middle-phase shielding cover. Figure 3 and Figure 5 shown, the right-phase shielding cover further includes a second extension baffle 4A, and the second extension baffle 4A is vertically arranged at the top of the side wall of the shielding cover body 1 close to the middle-phase shielding cover.

[0033] By arranging an extension plate at the top of the shielding cover, the present utility model can automatically isolate the upper stud of the drop fuse after the shielding cover is installed; by arranging a first extension baffle 4 at the top of the side of the left-phase shielding cover facing the middle-phase shielding cover, and arranging a second extension baffle 4A at the top of the side of the right-phase shielding cover facing the middle-phase shielding cover; when shielding, after the left-phase shielding cover and the right-phase shielding cover are installed, the middle-phase drop fuse is naturally isolated. Therefore, the middle-phase shielding cover does not need to be provided with an extension baffle to achieve three-phase isolation. This three-phase live insulation shielding cover does not need to be provided with two long baffles at the top of each shielding cover to shield the upper stud, which reduces the weight of the shielding cover and saves production materials at the same time.

[0034] According to an embodiment of the present application, as Figure 6 shown, a cross-arm shielding plate 6 is provided at one end of the fixing bracket shielding plate 3 close to the cross-arm hanging interface, and the cross-arm shielding plate 6 extends outward from the shielding cover body 1. The cross-arm shielding plate 6 is L-shaped and includes a vertical shielding plate matching the vertical part of the cross-arm and a horizontal shielding plate matching the horizontal part of the cross-arm.

[0035] According to an embodiment of the present application, as Figure 5 and Figure 6 shown, an operation handle 5 is provided on the side of the shielding cover body 1 facing the human body. When performing shielding, after the operator wears insulating protection equipment, first install the left / right phase shielding cover. When installing, hold the operation handle 5, then use the shielding cover body 1 to cover the drop-out fuse, put the upper terminal of the drop-out fuse into the upper terminal notch 21, and put the lower terminal of the drop-out fuse into the lower terminal notch 71, and complete the shielding of the two-phase drop-out fuses from near to far; finally, hold the operation handle 5 of the middle-phase shielding cover, and after shielding the middle-phase drop-out fuse in the same way, at the same time, the cross-arm extension baffle of the middle-phase shielding cover realizes the isolation of the cross-arm.

[0036] According to an embodiment of the present application, the operation handle 5 is arranged at the lower end of the side of the shielding cover body 1 facing the human body. Usually, the drop-out fuse is installed in a slightly inclined manner. By installing the operation handle 5 at the lower end, it is convenient to operate to cover the drop-out fuse with the insulating shielding cover.

[0037] In a second aspect, as Figure 7 shown, the present utility model discloses another three-phase live insulating shielding cover for a 10kV line drop-out fuse, including a shielding cover body 1. The side of the shielding cover body 1 away from the human body is in an open shape. An upper terminal notch 21 matching the upper terminal of the drop-out fuse is provided on the top wall 2 of the shielding cover body 1, and a lower terminal notch 71 matching the lower terminal of the drop-out fuse is provided on the bottom wall 7 of the shielding cover body 1; a fixed support shielding plate 3 is respectively provided at one end of each of the two side walls of the shielding cover body 1 away from the human body, and a cross-arm hanging interface 31 matching the cross-arm is provided at the bottom of the fixed support shielding plate 3; a third extension baffle 8 extending upward is provided on the left or right side of the top of the shielding cover body 1, and the third extension baffle 8 is detachably connected to the shielding cover body 1. By providing a detachably connected third extension baffle 8 on both sides of the top of the shielding cover, the third extension baffle 8 can be installed or not installed as needed during use; and during transportation, the length of the shielding cover can also be reduced by removing the third extension baffle 8, so as to facilitate transportation.

[0038] According to an embodiment of the present application, one end of the third extended baffle 8 connected to the shielding cover body 1 is provided with a bending portion 81 that bends inwardly towards the inside of the shielding cover body 1; at the top ends of the two side walls of the shielding cover body 1, there are installation grooves 11 that cooperate with the bending portion 81, and the installation grooves 11 are formed by sinking from the two side walls of the shielding cover body 1 towards the inside of the shielding cover body 1; after the bending portion 81 extends into the installation groove 11, it is fixed in the installation groove 11 through a fastener 9. Both the shielding cover body 1 and the third extended baffle 8 are made of synthetic resin, having good insulation properties, ensuring the shielding effect, and thus ensuring the safety of the operating personnel; the fastener 9 can be a fastening bolt made of synthetic resin; on the side wall of the installation groove 11 located on one side of the top end of the shielding cover body 1, there are at least two first installation holes 22, and on the side wall of the installation groove 11 away from the top end of the shielding cover body 1, there are blind holes that cooperate with the first installation holes 22. On the bending portion 81, there are at least second installation holes 82 that cooperate with the first installation holes 22. After the fastening bolt penetrates through the first installation holes 22 and the second installation holes 82, it extends into the blind hole to achieve fastening. The second installation holes 82 on the bending portion 81 are symmetrically arranged, enabling the third extended baffle 8 to be installed in the installation groove 11 on the left side of the shielding cover body 1, and also able to be installed in the installation groove 11 on the right side of the shielding cover body 1 after being reversed.

[0039] According to an embodiment of the present application, on the inner sides of the top portions of the two side walls of the shielding cover body 1, there are inwardly protruding bosses 12, and the installation grooves 11 are formed by sinking from the inner sides of the bosses 12 of the shielding cover body 1.

[0040] According to an embodiment of the present application, at one end of the fixed bracket shielding plate 3 adjacent to the cross-arm hanging interface, there is a cross-arm shielding plate 6, and the cross-arm shielding plate 6 extends outward from the shielding cover body 1.

[0041] According to an embodiment of the present application, on the side of the shielding cover body 1 facing the human body, there is an operation handle 5.

[0042] According to an embodiment of the present application, the operation handle 5 is arranged at the lower end of the side of the shielding cover body 1 facing the human body.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A three-phase live insulation shielding cover for a 10 kV line drop-out fuse, characterized in that It includes a left-phase shielding cover, a middle-phase shielding cover and a right-phase shielding cover; The middle-phase shielding cover includes a shielding cover body. The side of the shielding cover body away from the human body is open. An upper stud notch matching the upper stud of the drop-out fuse is provided on the top wall of the shielding cover body, and a lower stud notch matching the lower stud of the drop-out fuse is provided on the bottom wall of the shielding cover body. At the ends of the two side walls of the shielding cover body away from the human body, a fixed support shielding plate is respectively provided, and a cross-arm hanging interface matching the cross-arm is provided at the bottom of the fixed support shielding plate; The left-phase shielding cover further includes a first extended baffle, and the first extended baffle is vertically arranged at the top end of the side wall of the shielding cover body close to the middle-phase shielding cover; The right-phase shielding cover further includes a second extended baffle, and the second extended baffle is vertically arranged at the top end of the side wall of the shielding cover body close to the middle-phase shielding cover.

2. The three-phase live insulation shielding cover for the 10 kV line drop-out fuse according to claim 1, wherein A cross-arm shielding plate is provided at one end of the fixed support shielding plate close to the cross-arm hanging interface, and the cross-arm shielding plate extends outward from the shielding cover body.

3. The three-phase live insulation shielding cover for the 10 kV line drop-out fuse according to claim 1, characterized in that, An operation handle is provided on the side of the shielding cover body facing the human body.

4. The three-phase live insulation shielding cover for the 10 kV line drop-out fuse according to claim 3, characterized in that, The operation handle is arranged at the lower end of the side of the shielding cover body facing the human body.

5. A three-phase live insulation shielding cover for a 10 kV line drop-out fuse, characterized in that, It includes a shielding cover body. The side of the shielding cover body away from the human body is open. An upper stud notch matching the upper stud of the drop-out fuse is provided on the top wall of the shielding cover body, and a lower stud notch matching the lower stud of the drop-out fuse is provided on the bottom wall of the shielding cover body. At the ends of the two side walls of the shielding cover body away from the human body, a fixed support shielding plate is respectively provided, and a cross-arm hanging interface matching the cross-arm is provided at the bottom of the fixed support shielding plate. A third extended baffle extending upward is provided on the left or right side of the top of the shielding cover body, and the third extended baffle is detachably connected to the shielding cover body.

6. The three-phase live insulation shielding cover for the 10 kV line drop-out fuse according to claim 5, characterized in that, A bent portion bent inward toward the inside of the shielding cover body is provided at one end of the third extended baffle connected to the shielding cover body. Installation grooves matching the bent portion are provided at the top ends of the two side walls of the shielding cover body, and the installation grooves are formed by sinking from the two side walls of the shielding cover body toward the inside of the shielding cover body. After the bent portion extends into the installation groove, it is fixed in the installation groove through fasteners.

7. The three-phase live insulation shielding cover for the 10 kV line drop-out fuse according to claim 6, wherein Convex platforms protruding inward are provided on the inner sides of the top of the two side walls of the shielding cover body, and the installation grooves are formed by sinking from the inner sides of the convex platforms of the shielding cover body.

8. The three-phase live insulation shielding cover for the 10 kV line drop-out fuse according to claim 5, characterized in that, A cross-arm shielding plate is provided at one end of the fixed support shielding plate close to the cross-arm hanging interface, and the cross-arm shielding plate extends outward from the shielding cover body.

9. The three-phase live insulating shielding cover for the 10 kV line drop-out fuse according to claim 5, characterized in that, An operation handle is provided on the side of the shielding cover body facing the human body.

10. The three-phase live insulation shielding cover for the 10 kV line drop-out fuse according to claim 9, characterized in that, The operation handle is arranged at the lower end of the side of the shielding cover body facing the human body.

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