Hard shielding case capable of being installed at ground potential

Abstract

The utility model discloses a ground potential installable hard shielding case, which is composed of an eta-shaped shield, an L-shaped door closing shield and two rotary door closing fixing modules, and the eta-shaped shield is composed of an eta-shaped main structure, an installation operation structure, an iron sheet embedding structure, two wire clamping grooves and two rotary door closing base structures; the two rotary door closing fixing modules are arranged on the two rotary door closing base structures in a one-to-one correspondence mode, and a rotary circular cavity connected with the L-shaped door closing protective cover is formed between each rotary door closing fixing module and the corresponding rotary door closing base structure. The L-shaped door closing protective cover is arranged on the short side of the n-shaped protective cover in an opening and closing mode, and the L-shaped door closing protective cover and the n-shaped protective cover form a cavity structure with the left end open and the right end open. According to the hard shielding cover capable of being installed on the ground potential, live-line installation of the ground potential on a pole can be carried out, the hard shielding cover can be wrapped outside an AMP wire clamp with an insulation protection cover in a shielding mode, a certain internal isolation gap is provided, and the insulation protection level of the position of the AMP wire clamp is improved.

Description

Technical Field

[0001] This utility model relates to a rigid shield that can be installed at ground potential. Background Technology

[0002] As the ecological environment improves, in addition to the increasing number of small animals such as squirrels and birds, the number of large birds such as magpies is also increasing day by day. Magpies are birds that are good at building nests. They especially like to build nests on the crossarms of utility poles and like to build nests repeatedly in a certain point within a specific environmental range. Even if power construction workers remove the bird nests on the utility poles, the next day power inspection personnel can see that the bird nests have been built again.

[0003] Especially at the tension points of the double crossarm segmented corners, where the corner branches of two lines are connected by AMP clamps, the outside is wrapped with insulating tape or fitted with an AMP clamp insulating sleeve. However, the foundation for the bird's nest-like structure, built with thick, large, and long branches or wires, directly wraps the AMP clamps along with their outer insulation, significantly reducing the insulation level at the AMP clamp connection and seriously threatening the safe operation of the power distribution lines.

[0004] The outer insulating tape is at risk of aging and loosening due to wind and sun exposure. The insulating sleeve of the AMP clamp can only prevent short-term contact with ordinary foreign objects. Once it rains and wets the tree branches, the insulation protection outside the AMP clamp is useless. There is no insulation protection at all, which may lead to a long-term continuous ground short circuit in the line. After the line trips, it cannot be reclosed successfully, which seriously affects the reliability of the power supply. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a rigid shielding cover that can be installed at ground potential. This cover allows for live installation at ground potential on poles and can be wrapped around existing AMP clamps with insulating protective covers. It also provides a certain internal isolation gap to improve the insulation protection level of the AMP clamp location. This reduces the risk of short-circuit discharge to ground caused by animal contact, bird nests, or tree branches, which could lead to line tripping. It provides a buffer time for line inspection personnel, thereby reducing the line tripping rate, reducing the workload of line inspection and troubleshooting, and effectively improving the reliability of power distribution network.

[0006] The technical solution to achieve the above objective is: a ground-potential mounted rigid shielding cover, made of rigid insulating material, consisting of an η-type shielding cover (1), an L-type closing shielding cover (3), and two rotating closing fixing modules (2), wherein:

[0007] The η-shaped protective cover (1) consists of an η-shaped main structure (11), an installation and operation structure (12), an iron sheet inlay structure (15), two wire insertion slots (14), and two rotating door base structures (13). The overall structure of the η-shaped main structure (11) is shaped like an "η". The installation and operation structure (12) is located at the center of the top of the η-shaped main structure (11). The two rotating door base structures (13) are located on the top of the η-shaped main structure (11) on the left and right sides, and the two rotating door base structures (13) are used for... The L-shaped closing cover (3) is connected; the two openings of the n-shaped main structure (11) respectively form wire insertion slots (14), the central part of the n-shaped main structure (11) is fitted outside the Ampere wire clamp, and the wire insertion slots (14) are used to insert the wires connected to both ends of the Ampere wire clamp; the iron plate inlay structure (15) is set in the middle of the outer wall of the shorter side of the n-shaped main structure (11), and an iron plate is inlaid on the iron plate inlay structure (15). The iron plate is used to magnetically connect with the L-shaped closing cover (3) to ensure that the entire rigid shield is closed;

[0008] The two rotating door fixing modules (2) are respectively set on the two rotating door base structures (13), and each rotating door fixing module (2) and the corresponding rotating door base structure (13) form a rotating cavity connecting the L-shaped door cover (3);

[0009] The L-shaped closing cover (3) is detachably mounted on the shorter side of the η-shaped cover (1). The L-shaped closing cover (3) and the η-shaped cover (1) together form a cavity structure with openings at the left and right ends. This cavity structure is used to accommodate the Ampere clamp.

[0010] The above-mentioned ground potential mounted rigid shield has two through holes on the mounting operation structure (12) for connecting the live mounting operation tool head.

[0011] The above-mentioned ground potential mounted rigid shield includes a rotating door base structure (13) comprising four connecting cylinders and two rotating support brackets. The four connecting cylinders are arranged in a square shape on the top of the n-shaped main structure (11), and the two rotating support brackets are arranged symmetrically between the four connecting cylinders.

[0012] The aforementioned ground-potential-mountable rigid shielding cover, wherein the rotating door-closing fixing module (2) comprises a fixed connecting body (21), a rotating movable groove (22), four connecting cylindrical caps (24), and an anti-rotation limiting slot (25), wherein:

[0013] The rotating movable groove (22) and the anti-rotation limiting groove (25) are located one in front of the other in the center of the fixed connection body (21). The four connecting cylindrical caps (24) are symmetrically distributed in pairs at the bottom of the left and right sides of the fixed connection body (21). A rotating support movable groove (23) is provided between the two connecting cylindrical caps (24) on each side.

[0014] The four connecting cylindrical caps (24) are connected one-to-one with the four connecting cylinders of the rotating closing base structure (13) of the η-type protective cover (1) and fastened with self-tapping screws;

[0015] Each rotating support movable groove (23) and the corresponding rotating support recess of the rotating closing base structure (13) of the η-type protective cover (1) constitute the rotating cavity.

[0016] The aforementioned ground potential mounted rigid shield, wherein the L-shaped closing shield (3) is composed of an L-shaped main structure (31), a strong magnetic mounting structure (34), and two rotating connecting pillars (32), wherein:

[0017] The two rotating connecting pillars (32) are located at the top ends of the L-shaped main structure (31);

[0018] The strong magnetic mounting structure (34) is located at the center of the long side of the L-shaped main structure (31). The outer side of the strong magnetic mounting structure (34) is insulated and wrapped, and the inner wall is equipped with strong magnets. The iron sheet of the iron sheet inlay structure (15) of the n-shaped protective cover (1) and the strong magnet of the strong magnetic mounting structure (34) of the L-shaped closing protective cover (3) attract each other to ensure that the hard shielding cover is in the closed state.

[0019] The two rotating connecting pillars (32) are rotatably set in the rotating cavity composed of the two rotating door base structures (13) and the rotating door fixing module (2).

[0020] The above-mentioned ground potential mounted rigid shield includes each rotating connecting pillar (32) comprising a rotating movable connecting structure and a rotating pillar. A protrusion is provided on the rotating pillar, which is used to engage with the anti-rotation limiting slot (25) of the rotating door fixing module (2) to ensure that the L-shaped door closing shield (3) is always in the open state during live installation.

[0021] This utility model discloses a ground potential-installable rigid shielding cover, which is modularly formed from rigid insulating material and modified with additives such as anti-weathering, anti-UV aging, and flame retardant. Through ingenious splicing and combination, it forms an openable and closable insulating shielding cover. It can be installed on poles with ground potential and can shield and wrap around the original AMP clamp with insulating protective cover, and provide a certain internal isolation gap to improve the insulation protection level of the AMP clamp location. This reduces the problem of short circuit discharge to ground caused by animal contact, bird nests, and tree branches, which can lead to line tripping. It provides buffer time for line inspection personnel, thereby reducing the line tripping rate, reducing the workload of line inspection and troubleshooting, and effectively improving the reliability of power distribution network. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of the ground potential mounted rigid shield of this utility model;

[0023] Figure 2 A three-dimensional structural diagram of the η-type shield of the present invention, which has a rigid shield that can be installed at ground potential.

[0024] Figure 3 This is a structural diagram (front view) of the rotating door closing and fixing module of the present invention, which has a rigid shield that can be installed at ground potential.

[0025] Figure 4 Structural diagram (view from below) of the rotating door closing and fixing module of the present invention, which has a rigid shield that can be installed at ground potential;

[0026] Figure 5 This is a three-dimensional structural diagram of the L-shaped door closing cover with a ground potential-mountable rigid shield according to this utility model. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, its specific embodiments are described in detail below with reference to the accompanying drawings:

[0028] Please see Figures 1 to 5 The preferred embodiment of this utility model is a ground potential mounted rigid shielding cover, made of rigid insulating material, consisting of an n-shaped shielding cover 1, an L-shaped door closing shielding cover 3, and two rotating door closing fixing modules 2.

[0029] The L-shaped closing cover 3 can be opened and closed on the shorter side of the η-shaped cover 1. The L-shaped closing cover 3 and the η-shaped cover 1 form a cavity structure with openings at the left and right ends. This cavity structure is used to accommodate the Ampere clamp.

[0030] Please see again Figure 2 The η-type protective cover 1 consists of an η-type main structure 11, an installation and operation structure 12, an iron sheet inlay structure 15, two wire insertion slots 14, and two rotating door base structures 13.

[0031] The η-shaped main structure 11 has an overall "η" shape and is symmetrical from left to right. The installation and operation structure 12 is located at the center of the top of the η-shaped main structure 11. The installation and operation structure 12 has two through holes for connecting live installation and operation tool heads.

[0032] Two rotating door base structures 13 are positioned on top of the η-shaped main structure 11, one on the left and one on the right, and are used to connect the L-shaped door closing cover 3. Two rotating door fixing modules 2 are correspondingly positioned on the two rotating door base structures 13, and the rotating door fixing modules 2 and the rotating door base structures 13 form a rotating cavity connecting the L-shaped door closing cover 3.

[0033] The two openings on both sides of the η-type main structure 11 form wire insertion slots 14. The central part of the η-type main structure 11 is fitted over the AMP clamp. The wire insertion slots 14 are used to insert the wires connected to the two ends of the AMP clamp. The iron plate inlay structure 15 is set in the middle of the outer wall of the shorter side of the η-type main structure 11. The iron plate inlay structure 15 is inlaid with an iron plate, which is used to magnetically connect with the L-shaped closing cover 3 to ensure that the entire rigid shielding cover is closed.

[0034] Each rotating door base structure 13 includes four connecting cylinders and two rotating support brackets. The four connecting cylinders are arranged in a square shape on the top of the η-shaped main structure 11, and the two rotating support brackets are arranged symmetrically between the four connecting cylinders.

[0035] Please see Figure 3 and Figure 4 The rotating door closing fixing module 2 consists of a fixed connecting body 21, a rotating movable groove 22, four connecting cylindrical caps 24, and an anti-rotation limiting slot 25. The rotating movable groove 22 and the anti-rotation limiting slot 25 are located one in front of the other in the center of the fixed connecting body 21. The four connecting cylindrical caps 24 are symmetrically distributed in pairs at the bottom of the left and right sides of the fixed connecting body 21. A rotating support movable groove 23 is provided between the two connecting cylindrical caps 24 on each side.

[0036] The four connecting cylindrical caps 24 are connected one-to-one with the four connecting cylinders of the rotating door closing base structure 13 of the η-type protective cover 1 and are fastened with self-tapping screws; the movable groove 23 of each rotating support and the corresponding rotating support recess of the rotating door closing base structure 13 of the η-type protective cover 1 form a rotating cavity.

[0037] Please see again Figure 5 The L-shaped door closing cover 3 consists of an L-shaped main structure 31, a strong magnetic mounting structure 34, and two rotating connecting pillars 32. The L-shaped main structure (31) is symmetrical from left to right.

[0038] Two rotating connecting pillars 32 are set at the top ends of the L-shaped main structure 31; the strong magnetic mounting structure 34 is located at the center of the long side of the L-shaped main structure 31. The outer side of the strong magnetic mounting structure 34 is insulated and wrapped, and the inner wall is equipped with strong magnets. After the installation is completed on the pole, the iron sheet of the iron sheet inlay structure 15 of the η-shaped protective cover 1 and the strong magnet of the strong magnetic mounting structure 34 of the L-shaped closing protective cover 3 attract each other to ensure that the rigid shielding cover is in the closed state.

[0039] Two rotating connecting pillars 32 are rotatably mounted one-to-one within the rotating cavity formed by the two rotating door base structures 13 and the rotating door fixing module 2. Each rotating connecting pillar 32 includes a rotating movable connecting structure and a rotating pillar. A protrusion is provided on the rotating pillar, which is used to engage with the anti-rotation limiting slot 25 of the rotating door fixing module 2 to ensure that the L-shaped door closing cover 3 is always in the open state during live installation.

[0040] This utility model features a ground potential-mountable rigid shielding cover. Due to its unique structural molding and ingenious assembly of rigid insulating material, it is suitable for insulation protection of AMP clamps in various installation scenarios, including segmented crossings, corner tensioning, and line branch locations. Compared to traditional soft silicone rubber jackets, it offers several advantages. It can be used for routine power outage maintenance as an insulation protection cover for AMP clamps, and it also enables pole-mounted installation without power interruption, allowing for live-line installation to prevent external damage to AMP clamp locations.

[0041] This utility model features a ground potential-mountable rigid shielding cover. By insulating and shielding the high-voltage live parts of the Amp clamp itself, it provides an insulation gap between the inner cavity of the rigid shielding cover and the Amp clamp body. This improves the insulation level between the live parts of the high-voltage end and foreign objects that come into contact or overlap with the outside of the rigid shielding cover, enhances the protection against external damage from small animals, bird nests, or tree branches, and improves the reliability of power distribution networks.

[0042] This utility model features a ground potential-mountable rigid shielding cover, enabling direct pole-mounted live installation without the need for an insulated bucket truck. This simplifies the work for personnel and tools, improves work efficiency, reduces equipment operating costs, flexibly expands the scope of uninterrupted power supply operations, and directly reduces voltage drop during fault tripping of overhead distribution lines, significantly reducing line maintenance and fault repair costs.

[0043] In summary, the ground potential-mountable rigid shielding cover of this utility model allows for live installation on poles at ground potential. It can shield and wrap around the existing AMP clamp with its insulating protective cover, and provides a certain internal isolation gap to improve the insulation protection level of the AMP clamp location. This reduces the problem of short-circuit discharge to ground caused by animal contact, bird nests, or tree branches, which could lead to line tripping. It also provides buffer time for line inspection personnel, thereby reducing the line tripping rate, reducing the workload of line inspection and troubleshooting, and effectively improving the reliability of power distribution network.

[0044] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any changes or modifications to the above embodiments within the scope of the essential spirit of the present utility model will fall within the scope of the claims of the present utility model.

Claims

1. A rigid shielding cover that can be mounted at ground potential, characterized in that, It consists of an η-type protective cover (1), an L-type closing protective cover (3), and two rotating closing fixing modules (2), wherein: The η-shaped protective cover (1) consists of an η-shaped main structure (11), an installation and operation structure (12), an iron sheet inlay structure (15), two wire insertion slots (14), and two rotating door base structures (13). The overall structure of the η-shaped main structure (11) is shaped like an "η". The installation and operation structure (12) is located at the center of the top of the η-shaped main structure (11). The two rotating door base structures (13) are located on the top of the η-shaped main structure (11) on the left and right sides, and the two rotating door base structures (13) are used for... The L-shaped closing cover (3) is connected; the two openings of the n-shaped main structure (11) respectively form wire insertion slots (14), the central part of the n-shaped main structure (11) is fitted outside the Ampere wire clamp, and the wire insertion slots (14) are used to insert the wires connected to both ends of the Ampere wire clamp; the iron plate inlay structure (15) is set in the middle of the outer wall of the shorter side of the n-shaped main structure (11), and an iron plate is inlaid on the iron plate inlay structure (15). The iron plate is used to magnetically connect with the L-shaped closing cover (3) to ensure that the entire rigid shield is closed; The two rotating door fixing modules (2) are respectively set on the two rotating door base structures (13), and each rotating door fixing module (2) and the corresponding rotating door base structure (13) form a rotating cavity connecting the L-shaped door cover (3); The L-shaped closing cover (3) is detachably mounted on the shorter side of the η-shaped cover (1). The L-shaped closing cover (3) and the η-shaped cover (1) together form a cavity structure with openings at the left and right ends. This cavity structure is used to accommodate the Ampere clamp.

2. The ground potential-mountable rigid shielding cover according to claim 1, characterized in that, The installation operation structure (12) has two through holes for connecting the live installation operation tool head.

3. A ground potential-mountable rigid shielding cover according to claim 1, characterized in that, Each rotating door base structure (13) includes four connecting cylinders and two rotating support brackets. The four connecting cylinders are arranged in a square shape on the top of the η-shaped main structure (11), and the two rotating support brackets are arranged symmetrically between the four connecting cylinders.

4. A ground potential-mountable rigid shielding cover according to claim 1, characterized in that, The rotating door closing fixing module (2) consists of a fixed connecting body (21), a rotating movable groove (22), four connecting cylindrical caps (24), and an anti-rotation limiting groove (25), wherein: The rotating movable groove (22) and the anti-rotation limiting groove (25) are located one in front of the other in the center of the fixed connection body (21). The four connecting cylindrical caps (24) are symmetrically distributed in pairs at the bottom of the left and right sides of the fixed connection body (21). A rotating support movable groove (23) is provided between the two connecting cylindrical caps (24) on each side. The four connecting cylindrical caps (24) are connected one-to-one with the four connecting cylinders of the rotating closing base structure (13) of the η-type protective cover (1) and fastened with self-tapping screws; Each rotating support movable groove (23) and the corresponding rotating support recess of the rotating closing base structure (13) of the η-type protective cover (1) constitute the rotating cavity.

5. A ground potential-mountable rigid shielding cover according to claim 1, characterized in that, The L-shaped door closing cover (3) consists of an L-shaped main structure (31), a strong magnetic mounting structure (34), and two rotating connecting pillars (32), wherein: The two rotating connecting pillars (32) are located at the top ends of the L-shaped main structure (31); The strong magnetic mounting structure (34) is located at the center of the long side of the L-shaped main structure (31). The outer side of the strong magnetic mounting structure (34) is insulated and wrapped, and the inner wall is equipped with strong magnets. The iron sheet of the iron sheet inlay structure (15) of the n-shaped protective cover (1) and the strong magnet of the strong magnetic mounting structure (34) of the L-shaped closing protective cover (3) attract each other to ensure that the hard shielding cover is in the closed state. The two rotating connecting pillars (32) are rotatably set in the rotating cavity composed of the two rotating door base structures (13) and the rotating door fixing module (2).

6. A ground potential-mountable rigid shielding cover according to claim 5, characterized in that, Each rotating connecting support (32) includes a rotating movable connecting structure and a rotating support. A protrusion is provided on the rotating support. The protrusion is used to engage with the anti-rotation limiting slot (25) of the rotating door closing fixing module (2) to ensure that the L-shaped door closing cover (3) is always in the open state during live installation.

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