Adjustable isolator protection cover

Abstract

The utility model provides a kind of adjustable isolator protective cover, is made of insulating material, for the live part of isolator, the protective cover includes mutually matched first, second cover body, when the two are matched, the cover body of open lower end is formed;Two first fixed cards are assembled on the first cover body with interval, two second fixed cards are assembled on the second cover body with interval, according to the interval between the two stand columns of isolator, the assembly position of first fixed card and second fixed card can be adjusted, a first fixed card and the second fixed card corresponding thereto are marked as a group of fixed cards, the two stand columns of isolator are placed at two groups of fixed cards respectively, the first fixed card and the second fixed card corresponding thereto are fixedly connected together by connecting piece, and the protective cover can be assembled at the stand column of isolator. The above-mentioned adjustable isolator protective cover can protect the live part of isolator through the protective cover.

Description

Technical Field

[0001] This utility model relates to the field of protective cover technology, and in particular to an adjustable disconnector switch protective cover. Background Technology

[0002] In power distribution facilities, there is a method called a "hand-on power supply line" to regulate the power supply lines. That is, a certain point on the line, denoted as point M, is supplied by one substation at one end and by another substation at the other end. For the safety of power operation, a disconnecting switch needs to be installed at point M.

[0003] Disconnect switches are typically mounted on the crossarm of utility poles, such as... Figure 5 As shown, the live parts of the disconnector switch are located below the crossarm, facing the ground or tilted towards the ground. Therefore, the connection between the disconnector switch and the crossarm of the utility pole is extremely prone to bird nests. Figure 5 Building a nest in nesting area E poses a potential threat to the operation of the power supply line. For example, birds such as magpies and crows like to carry conductive objects such as metal wires to their nests, and they often use small sticks and twigs to build their nests. When workers remove nests, they usually do so without interrupting the power supply. Therefore, there is a risk that metal wires (such as iron wires) may fall from the nest during the removal process. When a metal wire falls, one end may come into contact with the crossarm, and the other end may come into contact with the live part of the disconnector, connecting the two. The crossarm usually has a grounding electrode, so the live part of the disconnector may be grounded, leading to a circuit breaker tripping. In addition, when the ambient humidity is high, such as on rainy days or when it is damp, if the small sticks and twigs used for nesting come into contact with the live parts of the crossarm and the disconnector, it can cause problems with the line, thus posing a significant safety hazard. Utility Model Content

[0004] To address the problems existing in the prior art, this application proposes an adjustable disconnect switch protective cover. The protective cover protects the live parts of the disconnect switch, preventing potential circuit problems caused by objects such as metal wires falling from the bird's nest during the process of cleaning the bird's nest without power interruption.

[0005] To achieve the above objectives, this application proposes an adjustable disconnector switch protective cover. The protective cover is made of insulating material and is used to protect the live parts of the disconnector switch. The protective cover includes a first cover body and a second cover body that cooperate with each other, forming a cover body with an opening at the lower end when used together. Two first fixing clips are spaced apart on the first cover body, and two second fixing clips are spaced apart on the second cover body. The assembly positions of the first and second fixing clips can be adjusted according to the distance between the two columns of the disconnector switch. The two first fixing clips and the two second fixing clips are arranged in a one-to-one correspondence. One first fixing clip and its corresponding second fixing clip are referred to as a set of fixing clips. The two columns of the disconnector switch are placed at the two sets of fixing clips respectively. The first fixing clips and their corresponding second fixing clips are mated together and fixedly connected together by connectors, so that the adjustable disconnector switch protective cover can be assembled at the columns of the disconnector switch.

[0006] In some embodiments, the first protective cover includes a first upper cover plate, a first front baffle plate, a first rear baffle plate, and a left baffle plate. The first front baffle plate and the first rear baffle plate are respectively fixedly connected to the front and rear ends of the first upper cover plate, and the left baffle plate is fixedly connected to the left end face of the first upper cover plate. The first upper cover plate, the first front baffle plate, the first rear baffle plate, and the left baffle plate form a semi-enclosed structure with an opening at the lower end. Two first notches are provided at intervals along the front-rear direction at one end of the first upper cover plate near the second protective cover. A plurality of first adjustment holes are provided around each first notch. First wiring holes are formed along the concave end face of the first front baffle plate and the first rear baffle plate near the second protective cover. The first wiring holes are semi-circular.

[0007] In some embodiments, the second protective cover includes a second upper cover plate, a second front baffle plate, a second rear baffle plate, and a right baffle plate. The second front baffle plate and the second rear baffle plate are respectively fixedly connected to the front and rear ends of the second upper cover plate, and the right baffle plate is fixedly connected to the right end face of the second upper cover plate. The second upper cover plate, the second front baffle plate, the second rear baffle plate, and the right baffle plate form a semi-enclosed structure with an opening at the lower end. Two second notches are provided at intervals along the front-rear direction at one end of the second upper cover plate near the first protective cover. A plurality of second adjustment holes are provided around each second notch. Second wiring holes are formed along the concave end face of the second front baffle plate and the second rear baffle plate near the first protective cover. The second wiring holes are semi-circular. When the first protective cover and the second protective cover are used together, the first wiring holes and the second wiring holes are combined to form a complete circular wiring hole. The wiring hole is used for wiring of the disconnect switch.

[0008] In some embodiments, two first fixing clips are spaced apart on the first upper cover plate of the first protective cover, and two second fixing clips are spaced apart on the second upper cover plate of the second protective cover.

[0009] In some embodiments, the first fixing card and its corresponding second fixing card are arranged in a mirror-symmetrical manner. The first fixing card includes a first card holder with a first screw hole. The number of the first screw holes is the same as the number of the first adjustment holes on the first protective cover. Each first screw hole corresponds to each first adjustment hole. The first adjustment hole is an elongated hole arranged along the front-back direction. When the two first card holders are assembled on the first protective cover, the assembly position of the two first card holders is adjusted according to the distance between the two columns of the disconnect switch so that the first screw hole is always within the range of the corresponding first adjustment hole. An insulating screw is passed through the first screw hole and the corresponding first adjustment hole, and the first card holder is fixed on the first protective cover by the cooperation of the insulating nut and the insulating screw. The adjustment range of the assembly position of the first card holder is the length range of the first adjustment hole along the front-back direction. The second fixing card is assembled onto the second protective cover in the same way as the first fixing card is assembled onto the first protective cover.

[0010] In some embodiments, a first semi-circular notch is recessed in the first card holder near the end face of the second fixing card. The first semi-circular notch can be joined with a second semi-circular notch in the second fixing card to form a circular through hole. When the first card holder is assembled onto the first protective cover, the first semi-circular notch corresponds to a first notch on the first protective cover, and the second semi-circular notch corresponds to a second notch on the second protective cover. A first card groove is recessed in the first semi-circular notch. The first card groove is located in the middle of the first semi-circular notch along the vertical direction and is arranged along the circumference of the first semi-circular notch. The first card groove and the second card groove in the second fixing card can cooperate to form an annular card groove to adapt to the column of the disconnect switch.

[0011] In some embodiments, the first card holder is provided with a first connecting hole, and the second card holder in the second fixing card is provided with a second connecting hole at the corresponding position. When the adjustable disconnect switch protective cover needs to be assembled on the disconnect switch column, the first connecting member passes through the corresponding first connecting hole and the second connecting hole in sequence. Then, the first card holder and the second card holder are fastened to the corresponding disconnect switch column by the cooperation of the fastener and the first connecting member.

[0012] In some embodiments, the first card holder is further provided with a first cover portion for covering the first adjustment hole that may be exposed; and the second card holder is provided with a second cover portion for covering the second adjustment hole that may be exposed.

[0013] In some embodiments, when the diameter of the disconnector's column is smaller than the diameter of the circular through hole formed by splicing the first semi-circular notch and the second semi-circular notch in the second fixing clip, a butterfly pad needs to be provided. The butterfly pad is made of insulating material and is elastic. The butterfly pad is divided into two parts, referred to as the first butterfly pad and the second butterfly pad. The outer surfaces of the first butterfly pad and the second butterfly pad are provided with protrusions along the circumference. The protrusion of the first butterfly pad is engaged with the first slot, so that the first butterfly pad is assembled at the first semi-circular notch. The protrusion of the second butterfly pad is engaged with the second slot, so that the second butterfly pad is assembled at the second semi-circular notch. When the first butterfly pad and the second butterfly pad are joined together, the space enclosed by the two is the adapter hole, which is used to adapt to the shape of the disconnector's column.

[0014] In some embodiments, a first tear-off sealing cap is provided at the first wiring hole. The first tear-off sealing cap is semi-circular and is composed of several semi-circular rings and a first semi-circle. Each semi-circular ring and the first semi-circle are concentric circles, and adjacent ones are spliced ​​together. A second tear-off sealing cap is provided at the second wiring hole. The second tear-off sealing cap is semi-circular and is composed of several semi-circular rings and a second semi-circle. Each semi-circular ring and the second semi-circle are concentric circles, and adjacent ones are spliced ​​together. Depending on the wire diameter of the disconnect switch wire, the first semi-circle and the second semi-circle, or the first semi-circle, the second semi-circle, and the corresponding semi-circular ring are torn off to adapt to the wire diameter.

[0015] The beneficial effect of this solution is that the adjustable disconnector switch protective cover protects the live parts of the disconnector switch. During the process of cleaning bird nests without powering on, it can prevent objects such as metal wires inside the bird nest from falling and conducting electricity between the crossarm and the live parts of the disconnector switch through the metal wires, thus preventing circuit problems. In addition, it can also prevent circuit problems caused by objects such as small sticks and branches used for nest building coming into contact with the live parts of the crossarm and disconnector switch when the ambient humidity is high, thereby eliminating safety hazards as much as possible. Attached Figure Description

[0016] Figure 1 A schematic diagram of the adjustable disconnector switch protective cover in the embodiment is shown.

[0017] Figure 2 An exploded view of the protective cover for the adjustable disconnect switch in the embodiment is shown.

[0018] Figure 3 A schematic diagram of the structure of the first fixing card, the second fixing card, and the butterfly pad used in conjunction with the two is shown in the embodiment.

[0019] Figure 4 A schematic diagram of the adjustable disconnector switch protective cover being assembled onto the disconnector switch column is shown in the embodiment.

[0020] Figure 5 A schematic diagram of the structure in the embodiment is shown, showing the disconnecting switch assembled onto the crossarm of the utility pole.

[0021] Reference numerals: 1-First protective cover, 101-First upper cover plate, 102-First front baffle, 103-First rear baffle, 104-Left baffle, 105-First notch, 106-First adjustment hole, 107-First wiring hole, 2-Second protective cover, 201-Second upper cover plate, 202-Second front baffle, 203-Second rear baffle, 204-Right baffle, 205-Second notch, 206-Second adjustment hole, 207-Second wiring hole, 3-First fixed... Fixed card, 301-First card holder, 302-First cover part, 303-First semi-circular notch, 304-First card slot, 305-First screw hole, 306-First connecting hole, 307-First connector, 4-Second fixing card, 5-First butterfly pad, 6-Second butterfly pad, 7-Protrusion, 8-Adapter hole, 9-First hand-tear sealing cap, 10-Second hand-tear sealing cap, A-Protective cover, B-Isolating switch, C-Crossarm, D-Utility pole, E-Nesting area. Detailed Implementation

[0022] The specific embodiments of this application will be further described below with reference to the accompanying drawings.

[0023] In the description of this application, it should be understood that the terms "first," "second," etc., are used to distinguish similar objects, rather than to describe or indicate a specific order or sequence. The terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0024] like Figures 1-5As shown, the adjustable disconnector switch protective cover involved in this application is made of insulating material, that is, all components involved in the adjustable disconnector switch protective cover are made of insulating material, used to protect the live parts of the disconnector switch. The protective cover A includes a first protective cover body 1 and a second protective cover body 2 that cooperate with each other. The first protective cover body 1 includes a first upper cover plate 101, a first front baffle 102, a first rear baffle 103, and a left baffle 104. The first front baffle 102 and the first rear baffle 103 are respectively fixedly connected to the front and rear ends of the first upper cover plate 101, and the left baffle 104 is fixedly connected to the left end face of the first upper cover plate 101. The first front baffle 102, the first rear baffle 103, and the left baffle 104 form a semi-enclosed structure with an opening at the lower end. In this embodiment, the first upper cover 101, the first front baffle 102, the first rear baffle 103, and the left baffle 104 are an integrated structure. Two first notches 105 are provided at intervals in the first upper cover 101 near the end of the second protective cover 2. Multiple (e.g., three) first adjustment holes 106 are provided around each first notch 105. First wiring holes 107 are formed along the concave end face of the first front baffle 102 and the first rear baffle 103 near the end of the second protective cover 2. The first wiring holes 107 are semi-circular.

[0025] The second protective cover 2 includes a second upper cover 201, a second front baffle 202, a second rear baffle 203, and a right baffle 204. The second front baffle 202 and the second rear baffle 203 are respectively fixedly connected to the front and rear ends of the second upper cover 201, and the right baffle 204 is fixedly connected to the right end face of the second upper cover 201. The second upper cover 201, the second front baffle 202, the second rear baffle 203, and the right baffle 204 form a semi-enclosed structure with an opening at the lower end. In this embodiment, the second upper... The cover plate 201, the second front baffle 202, the second rear baffle 203, and the right baffle 204 are an integrated structure. Two second notches 205 are spaced apart at one end of the second upper cover plate 201 near the first protective cover 1. Multiple (e.g., three) second adjustment holes 206 are distributed around each second notch 205. Second wiring holes 207 are formed along the concave end face of the second front baffle 202 and the second rear baffle 203 near the first protective cover 1. The second wiring holes 207 are semi-circular. When the first protective cover 1 and the second protective cover 2 are used together, the first wiring hole 107 and the second wiring hole 207 form a complete circular wiring hole, which is used for wiring of the isolating switch B.

[0026] Two first fixing clips 3 are spaced apart on the first upper cover plate 101 of the first protective cover 1, and two second fixing clips 4 are spaced apart on the second upper cover plate 201 of the second protective cover 2. The two first fixing clips 3 and the two second fixing clips 4 are arranged in a one-to-one correspondence. One first fixing clip 3 and its corresponding second fixing clip 4 are referred to as a set of fixing clips. The two columns of the disconnecting switch B are placed at the two sets of fixing clips respectively. The first fixing clip 3 and its corresponding second fixing clip 4 are mated and engaged, and the first fixing clip 3 and its corresponding second fixing clip 4 are fixedly connected together by a connector. The adjustable disconnecting switch protective cover can be installed at the column of the disconnecting switch B.

[0027] The first fixing clip 3 and its corresponding second fixing clip 4 are arranged in a mirror-symmetrical configuration. The first fixing clip 3 includes a first clip base 301, on which a first screw hole 305 is provided. The number of first screw holes 305 is the same as the number of first adjustment holes 106 on the first protective cover 1. Each first screw hole 305 corresponds one-to-one with each first adjustment hole 106. In this embodiment, the first adjustment hole 106 is an elongated hole arranged along the front-back direction. When assembling the two first clip bases 301 onto the first protective cover 1, the assembly position of the two first clip bases 301 is adjusted according to the distance between the two columns of the disconnect switch B, so that the first screw hole 305 is always within the range of the corresponding first adjustment hole 106. Then, an insulating screw is passed through the first screw hole 305 and the corresponding first adjustment hole 106, and then the first clip base 301 is fixed onto the first protective cover 1 by the cooperation of the insulating nut and the insulating screw. The adjustment range of the assembly position of the first clip base 301 is the length range of the first adjustment hole 106 along the front-back direction. The second fixing clip 4 is assembled onto the second protective cover 2 in the same way as above, and will not be described again here.

[0028] A first semi-circular notch 303 is formed recessed in the end face of the first card holder 301 near the second fixing card 4. The first semi-circular notch 303 can be spliced ​​with the second semi-circular notch in the second fixing card 4 to form a circular through hole. When the first card holder 301 is assembled onto the first protective cover 1, the first semi-circular notch 303 corresponds to the first notch 105 on the first protective cover 1. This structural arrangement enables the first fixing card 3 and its corresponding second fixing card 4 to be connected together, and the first protective cover 1 and the second protective cover 2 can achieve seamless docking as much as possible.

[0029] A first slot 304 is formed by recessing at the first semi-circular notch 303. The first slot 304 is located in the middle part of the first semi-circular notch 303 along the vertical direction and is arranged along the circumference of the first semi-circular notch 303. The first slot 304 and the second slot in the second fixing card 4 can cooperate to form an annular slot to fit the column of the disconnect switch B.

[0030] The first card holder 301 is provided with a first connecting hole 306, and the second card holder in the second fixing card 4 is provided with a second connecting hole at the corresponding position. When the adjustable disconnector protective cover needs to be assembled on the column of the disconnector B, the first connecting piece 307 (e.g., an insulating bolt) passes through the corresponding first connecting hole 306 and the second connecting hole in sequence. Then, the first card holder 301 and the second card holder are fastened to the corresponding column of the disconnector B by the cooperation of the insulating nut and the insulating bolt.

[0031] In order to cover the first adjustment hole 106 that may be exposed, a first covering part 302 is also provided on the first card holder 301. In this embodiment, the first covering part 302 can be a baffle plate, which can cover the first adjustment hole 106 that may be exposed. Similarly, a second covering part is provided on the second card holder to cover the second adjustment hole 206 that may be exposed.

[0032] When the diameter of the column of the disconnector switch B is smaller than the diameter of the circular through hole formed by splicing the first semi-circular notch 303 and the second semi-circular notch in the second fixing clip 4, a butterfly pad needs to be set. Specifically, the butterfly pad is divided into two parts, which are referred to as the first butterfly pad 5 and the second butterfly pad 6. The outer surfaces of the first butterfly pad 5 and the second butterfly pad 6 are provided with protrusions 7 along the circumferential direction. The protrusions 7 of the first butterfly pad 5 are engaged with the first clip groove 304, so that the first butterfly pad 5 is assembled at the first semi-circular notch 303. Similarly, the protrusions 7 of the second butterfly pad 6 are engaged with the second clip groove, so that the second butterfly pad 6 is assembled at the second semi-circular notch. When the first butterfly pad 5 and the second butterfly pad 6 are joined together, the space enclosed by the two is the adapter hole 8, which is used to adapt to the shape of the column of the disconnector switch B. When the adjustable disconnector protective cover needs to be assembled to the disconnector B column, the first butterfly pad 5 and the second butterfly pad 6 cooperate to position the column at the adapter hole 8. Then, the first connector 307 (e.g., an insulating bolt) passes through the corresponding first connecting hole 306 and the second connecting hole in sequence. Finally, the first retaining seat 301 and the second retaining seat are fastened to the corresponding disconnector B column by the cooperation of the insulating nut and the insulating bolt. In this embodiment, the butterfly pad is made of an insulating material, such as silicone or polyurethane, making the butterfly pad elastic and compressible to accommodate the difference between the size of the circular through hole formed by the splicing of the first semi-circular notch 303 and the second semi-circular notch and the size of the disconnector column.

[0033] To accommodate the wire diameters of various disconnector switch B-type wires and to prevent the circular wiring hole formed by the first wiring hole 107 and the second wiring hole 207 from being too large (given the relatively small wire diameter of the disconnector switch B-type wire), which could allow dust and rainwater to pass through the wiring hole and contact the live parts of the disconnector switch, a first tear-off seal 9 is provided at the first wiring hole 107. The first tear-off seal 9 is semi-circular and consists of several semi-circular rings and a first semi-circle. Each semi-circular ring and the first semi-circle is... The first and second semicircles are concentric circles, and adjacent ones are spliced ​​together. Similarly, a second tear-off sealing cap 10 is provided at the second wiring hole 207. The second tear-off sealing cap 10 is semicircular and is composed of several semicircular rings and a second semicircle. Each semicircular ring and the second semicircle are concentric circles, and adjacent ones are spliced ​​together. Depending on the wire diameter of the disconnector switch B wire, the first semicircle and the second semicircle are torn off, or the first semicircle, the second semicircle and the corresponding semicircular ring are torn off to adapt to the wire diameter.

[0034] In practical use, the protective cover A is assembled on the column of the disconnect switch B. The assembly positions of the first fixing clip 3 and the second fixing clip 4 are adjusted according to the distance between the two columns of the disconnect switch B. The use of a butterfly pad is determined according to the diameter of the column of the disconnect switch B. After the protective cover A is installed on the disconnector switch B, the disconnector switch B is then installed on the crossarm C of the utility pole D. At this time, the live part of the disconnector switch B is located below the crossarm C and is protected by the protective cover A. Therefore, when there are bird nests in the nesting area E, workers need to clean the nests. The cleaning process is usually carried out without interrupting power. During the cleaning process, if any metal wire (such as iron wire) falls from the bird nest, the protective cover A protects the live part of the disconnector switch B, preventing one end of the falling metal wire from contacting the crossarm and the other end from contacting the live part of the disconnector switch, thus preventing the line from tripping. In addition, when the ambient humidity is high, such as on rainy days or when there is dampness, the protective cover A also protects the live part of the disconnector switch B, preventing small sticks, branches, and other objects used for nesting from contacting the crossarm and the live part of the disconnector switch, thus preventing line problems and eliminating safety hazards as much as possible.

[0035] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. An adjustable protective cover for a disconnecting switch, characterized in that: The protective cover is made of insulating material and is used to protect the live parts of the disconnecting switch. The protective cover includes a first cover body and a second cover body that cooperate with each other, forming a cover body with an opening at the lower end when they are used together. Two first fixing clips are installed at intervals on the first cover body, and two second fixing clips are installed at intervals on the second cover body. The assembly positions of the first fixing clips and the second fixing clips can be adjusted according to the distance between the two columns of the disconnecting switch. The two first fixing clips and the two second fixing clips are set one-to-one. One first fixing clip and its corresponding second fixing clip are referred to as a set of fixing clips. The two columns of the disconnecting switch are placed at the two sets of fixing clips respectively. The first fixing clips and their corresponding second fixing clips are mated together and fixed together by the first fixing clips and their corresponding second fixing clips through connectors, so that the adjustable disconnecting switch protective cover can be installed at the columns of the disconnecting switch.

2. The adjustable disconnector switch protective cover according to claim 1, characterized in that: The first protective cover includes a first upper cover plate, a first front baffle plate, a first rear baffle plate, and a left baffle plate. The first front baffle plate and the first rear baffle plate are respectively fixedly connected to the front and rear ends of the first upper cover plate. The left baffle plate is fixedly connected to the left end face of the first upper cover plate. The first upper cover plate, the first front baffle plate, the first rear baffle plate, and the left baffle plate form a semi-enclosed structure with an opening at the lower end. Two first notches are provided at intervals along the front-rear direction in the first upper cover plate near the end of the second protective cover. Multiple first adjustment holes are provided around each first notch. First wiring holes are formed along the concave end face of the first front baffle plate and the first rear baffle plate near the end of the second protective cover. The first wiring holes are semi-circular.

3. The adjustable disconnector switch protective cover according to claim 2, characterized in that: The second protective cover includes a second upper cover plate, a second front baffle plate, a second rear baffle plate, and a right baffle plate. The second front baffle plate and the second rear baffle plate are respectively fixedly connected to the front and rear ends of the second upper cover plate. The right baffle plate is fixedly connected to the right end face of the second upper cover plate. The second upper cover plate, the second front baffle plate, the second rear baffle plate, and the right baffle plate form a semi-enclosed structure with an opening at the lower end. Two second notches are provided at intervals along the front-rear direction at the end of the second upper cover plate near the first protective cover. Multiple second adjustment holes are provided around each second notch. Second wiring holes are formed along the concave end face of the second front baffle plate and the second rear baffle plate near the first protective cover. The second wiring holes are semi-circular. When the first protective cover and the second protective cover are used together, the first wiring holes and the second wiring holes are combined to form a complete circular wiring hole. The wiring hole is used for wiring of the disconnect switch.

4. The adjustable disconnector switch protective cover according to claim 3, characterized in that: Two first fixing clips are installed at intervals on the first upper cover plate of the first protective cover, and two second fixing clips are installed at intervals on the second upper cover plate of the second protective cover.

5. The adjustable disconnector switch protective cover according to claim 4, characterized in that: The first fixing clip and its corresponding second fixing clip are arranged in a mirror-symmetrical configuration. The first fixing clip includes a first clip base with a first screw hole. The number of first screw holes is the same as the number of first adjustment holes on the first protective cover. Each first screw hole corresponds to each first adjustment hole. The first adjustment hole is an elongated hole arranged along the front-back direction. When assembling the two first clip bases onto the first protective cover, the assembly position of the two first clip bases is adjusted according to the distance between the two columns of the disconnect switch, so that the first screw hole is always within the range of the corresponding first adjustment hole. An insulating screw is passed through the first screw hole and the corresponding first adjustment hole, and the first clip base is fixed onto the first protective cover by the cooperation of the insulating nut and the insulating screw. The adjustment range of the assembly position of the first clip base is the length range of the first adjustment hole along the front-back direction. The second fixing clip is assembled onto the second protective cover in the same way as the first fixing clip is assembled onto the first protective cover.

6. The adjustable disconnector switch protective cover according to claim 5, characterized in that: A first semi-circular notch is recessed at the end face of the first card holder near the second fixing card. The first semi-circular notch can be spliced ​​with the second semi-circular notch in the second fixing card to form a circular through hole. When the first card holder is assembled onto the first protective cover, the first semi-circular notch corresponds to the first notch on the first protective cover, and the second semi-circular notch corresponds to the second notch on the second protective cover. A first card groove is recessed at the first semi-circular notch. The first card groove is located in the middle part of the first semi-circular notch along the vertical direction and is arranged along the circumference of the first semi-circular notch. The first card groove and the second card groove in the second fixing card can cooperate to form an annular card groove to fit the column of the disconnect switch.

7. The adjustable disconnector switch protective cover according to claim 6, characterized in that: The first card holder is provided with a first connecting hole, and the second card holder in the second fixing card is provided with a second connecting hole at the corresponding position. When the adjustable disconnect switch protective cover needs to be assembled on the disconnect switch column, the first connecting member passes through the corresponding first connecting hole and the second connecting hole in sequence. Then, the first card holder and the second card holder are fastened to the corresponding disconnect switch column by the cooperation of the fastener and the first connecting member.

8. The adjustable disconnector switch protective cover according to claim 7, characterized in that: The first card holder is also provided with a first cover part for covering the first adjustment hole that may be exposed; the second card holder is provided with a second cover part for covering the second adjustment hole that may be exposed.

9. The adjustable disconnector switch protective cover according to claim 8, characterized in that: When the diameter of the disconnector's column is smaller than the diameter of the circular through hole formed by splicing the first semi-circular notch and the second semi-circular notch in the second fixing clip, a butterfly pad is required. The butterfly pad is made of insulating material and is elastic. The butterfly pad is divided into two parts, referred to as the first butterfly pad and the second butterfly pad. The outer surfaces of the first butterfly pad and the second butterfly pad are provided with protrusions along the circumference. The protrusion of the first butterfly pad is engaged with the first slot, so that the first butterfly pad is assembled at the first semi-circular notch. The protrusion of the second butterfly pad is engaged with the second slot, so that the second butterfly pad is assembled at the second semi-circular notch. When the first butterfly pad and the second butterfly pad are joined together, the space enclosed by the two is the adapter hole, which is used to adapt to the shape of the disconnector's column.

10. The adjustable disconnector switch protective cover according to claim 3, characterized in that: A first tear-off sealing cap is provided at the first wiring hole. The first tear-off sealing cap is semi-circular and is composed of several semi-circular rings and a first semi-circle. Each semi-circular ring and the first semi-circle are concentric circles, and adjacent ones are spliced ​​together. A second tear-off sealing cap is provided at the second wiring hole. The second tear-off sealing cap is semi-circular and is composed of several semi-circular rings and a second semi-circle. Each semi-circular ring and the second semi-circle are concentric circles, and adjacent ones are spliced ​​together. Depending on the wire diameter of the disconnect switch, tear off the first and second semicircles, or tear off the first and second semicircles and the corresponding semicircular rings, to fit the wire diameter.

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