Insulation protective cover for live-line disassembly and assembly of switch

Abstract

The utility model relates to the technical field of disconnecting switches, in particular to an insulating protective cover for live-line disassembly and assembly of a switch, which comprises a cover body, two mounting grooves are arranged on the cover body, a baffle is arranged on the cover body and positioned at notches of the two mounting grooves, and the baffle is hinged on the cover body through a hinge shaft. The baffle rotates around the hinge shaft to close the notch; when the baffle plate closes the notch of the mounting groove, the mounting groove and the baffle edge of the baffle plate enclose a mounting hole matched with the insulating column of the isolating switch; in the rotating process of the baffles, each baffle is provided with a corresponding locking mechanism, when the baffles rotate to the positions where the baffles are located, the baffles are prevented from moving forwards or backwards again, the locking mechanisms are fixed to the protective cover, and the installation grooves are not prone to deformation under the action of external force and convenient to install and dismantle.

Description

Technical Field

[0001] This utility model relates to the field of disconnector switch technology, specifically to an insulating protective cover for a switch that is energized and disassembled. Background Technology

[0002] Disconnecting switches are important switching devices in electrical systems, functioning to connect or disconnect the power supply to a circuit. A double-pole disconnecting switch consists of a top fixing component, a bottom switching assembly, and an insulating post between the fixing component and the switching assembly. During use, the disconnecting switch is exposed outdoors for extended periods. As part of the electrical equipment, operational failures caused by disconnecting switches in power line installations can be due to the following reasons: 1) foreign objects causing contact; 2) accidental contact by small animals.

[0003] To address the aforementioned issues, the State Intellectual Property Office published patent document CN203397993U, which discloses a protective cover for a disconnecting switch and a disconnecting switch. The cover includes a housing with a groove at its top that mates with an insulating post of the disconnecting switch. The insulating post includes a cylindrical rod and a plurality of frustum-shaped protrusions disposed on the rod and coaxial with it. The groove includes at least one frustum-shaped cavity that mates with a corresponding protrusion. The cover also has a cavity for accommodating a switch assembly of the disconnecting switch, and the lower part of the cover is open. The cover includes a left half-cover and a right half-cover; the left half-cover has a first recess and a C-shaped first hollow portion at its top, and is open at its bottom; the right half-cover has a second recess and a C-shaped second hollow portion at its top, and is open at its bottom; the first recess and the second recess cooperate to form the groove, and the first hollow portion and the second hollow portion cooperate to form the cavity. The left and right half-covers are provided with snap-fit ​​holes; snap-fit ​​holes are used to fix the left and right half-covers to the insulating posts of the disconnecting switch. The left and right half-covers are fixedly connected by screws and rivets. The left half-cover has a buckle; the right half-cover has a buckle groove that matches the buckle; the left and right half-covers are fixedly connected by the buckle engaging with the buckle groove.

[0004] Although the above technical solution solves the aforementioned problems, it has the following drawbacks: First, the screw connection and fixing method requires workers to climb the cable tower for installation, and for safety, the power must be cut off. This installation method is not only time-consuming and labor-intensive, but also affects normal power production operations. Second, for double-column disconnect switches, protective covers with different spacing holes need to be designed according to the different spacing of the double columns, so the above protective covers have poor versatility.

[0005] The CN 215342409 U patent solves this problem by making the protective covers with different spacing holes adjustable. However, once the above products are installed, they cannot be disassembled, as disassembly would damage them. In addition, the CN215342409 U patent products may encounter strong winds and heavy rains during use, and the sealed holes may partially open under external force, causing the product to deform and become unsuitable for use. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an insulating protective cover for live switches that is not easily deformed under external force and can be installed and removed.

[0007] The aforementioned insulating protective cover for live-lined switch assembly / disassembly includes a cover body with two mounting slots. A baffle is provided on the cover body at the opening of each mounting slot. The baffle is hinged to the cover body via a hinge shaft, and rotation of the baffle around the hinge shaft closes the slot opening. When the baffle closes the slot opening, the mounting slot and the baffle's edge form a mounting hole adapted to the insulating post of the disconnecting switch. During the rotation of the baffle, each baffle has a corresponding locking mechanism to prevent it from moving forward or backward when it reaches its current position. This locking mechanism is fixed to the protective cover.

[0008] Furthermore, the cover body includes a left sliding plate and a right sliding plate, with two mounting slots separately disposed on the left and right sliding plates. Both the left and right sliding plates are provided with elongated holes and sliding hooks. The left and right sliding plates are partially stacked together, and the sliding hook on the left sliding plate engages with the elongated hole on the right sliding plate and can slide along the elongated hole. The sliding hook on the right sliding plate engages with the elongated hole on the left sliding plate and can slide along the elongated hole. The left and right sliding plates slide relative to each other to adjust the distance between the two mounting slots.

[0009] Preferably, the locking mechanism includes a hollow tubular body along its length, which is fixed to the mounting holes on the protective cover. A retractable working end is provided inside the hollow tubular body. The end of the retractable working end near the baffle has an inclined plane on the side facing away from the baffle and towards the direction of movement of the closing slot. The baffle has several slots. During the rotation of the baffle, the inclined plane on the retractable working end will press against the slots in sequence, so that the retractable working end can keep the baffle in motion during the sliding of the baffle without blocking the movement, but the baffle cannot move backward after moving to the corresponding position. A spring is provided between the retractable working end and the hollow tubular body to realize the extension and retraction of the working end. The other end of the retractable working end passes through the hollow tubular body and has a hook or ring at the other end. Pulling the hook or ring causes the retractable working end to retract and rotate at an angle. The retractable working end is kept in the retracted state by the action of the locking point, so that the baffle can flexibly return to the initial state.

[0010] Furthermore, when the baffle is in the closed slot, the closed end of the baffle is composed of several parts that are staggered vertically. These staggered parts, together with the protective cover, can clamp the protective cover vertically when the slot is closed, making the structure more stable.

[0011] Furthermore, since there are multiple slots, the retractable working end of the locking mechanism has orientation requirements. In order to prevent errors during installation, there are interlocking points in the working end and the corresponding hollow tubular body. For example, there is a notch on the working end, and there is a protrusion in the corresponding hollow tubular body that mates with the notch, or there are multiple mating points.

[0012] Furthermore, both the left and right covers are provided with disassembly holes. After opening the baffle of the protective cover, the protective cover can be removed from the working position. The insulating operating rod is then placed on the disassembly holes on the left and right covers and pulled outwards. Then, the operating rod is slowly lowered to remove the insulating protective cover of the live switch of this utility model.

[0013] The aforementioned live switch insulating protective cover features a simple structure, convenient manufacturing, and easy installation and removal. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0015] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the baffle in Embodiment 1 of this utility model when it is open;

[0017] Figure 4 This is an exploded view of the locking mechanism in Embodiment 1 of this utility model. Detailed Implementation

[0018] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0019] Example 1:

[0020] like Figure 1 , 2As shown in Figures 3 and 4, this utility model discloses an insulating protective cover for a live-lined switch. It includes a cover body with disassembly holes 8 on both the left and right sides. The cover body includes a left sliding plate 1 and a right sliding plate 2. Two mounting slots 11 are formed on the cover body, separately positioned on the left and right sliding plates 1 and 2. Both the left and right sliding plates 1 and 2 have elongated holes 6 and sliding hooks 7. The left and right sliding plates 1 and 2 are partially stacked together, with the sliding hook 7 on the left sliding plate 1 engaging with the elongated hole 6 on the right sliding plate 2 and sliding along the hole 6. Similarly, the sliding hook 7 on the right sliding plate 2 engages with the elongated hole 6 on the left sliding plate 1 and slides along the hole 6. The elongated hole 6 slides, and the left sliding plate 1 and the right sliding plate 2 slide relative to each other to adjust the distance between the two mounting slots 11. A baffle 3 is provided on the cover body at the opening of the two mounting slots 11. The baffle 3 is hinged to the cover body via a hinge shaft 10. The baffle 3 rotates around the hinge shaft 10 to close the slot. When the baffle 3 closes the slot, the closing end of the baffle 3 is composed of several parts that are staggered vertically. These staggered parts can clamp the protective cover vertically when the slot is closed, making the structure more stable. When the baffle 3 closes the opening of the mounting slot 11, the mounting slot 11 and the baffle 3 together form a mounting hole 4 that is compatible with the insulating post of the disconnecting switch. During the rotation of the baffle 3, each baffle 3 has a corresponding locking mechanism 9. The locking mechanism 9 includes a hollow tubular body 14 along its length. The hollow tubular body 14 is fixed to the mounting hole on the protective cover. A retractable working end 16 is provided inside the hollow tubular body 14. The working end 16 and the corresponding hollow tubular body 14 are provided with mutually cooperating snap-fit ​​points 15. The end of the retractable working end 16 near the baffle 3, facing away from the baffle 3 and towards the direction of movement towards the closing slot, is provided with an inclined plane 17. The baffle 3 is provided with several slots 5. During the rotation of the baffle 3, the inclined plane 17 on the retractable working end 16... The working end 16 will press against the slot 5 in sequence, so that the baffle 3 can be in motion during the sliding of the baffle 3 without blocking the movement. However, the baffle 3 cannot move backward after moving to the corresponding position. A spring 13 is set between the retractable working end 16 and the hollow tubular body 14 to realize the extension and retraction of the working end 16. The other end of the retractable working end 16 passes through the hollow tubular body 14 and a ring 12 is set at the other end of the retractable working end 16. Pulling the ring 12 will cause the retractable working end 16 to retract and rotate by an angle. Through the action of the locking point 15, the retractable working end 16 will be kept in the retracted state, so that the baffle 3 can return to the initial state.

Claims

1. An electrically charged disassembly switch insulation guard, characterized in that: The protective cover comprises a cover body, two installation slots are formed in the cover body, and a baffle is arranged on the cover body and located at the slot opening of the two installation slots. The baffle is hinged to the cover body through a hinge shaft, and the baffle is rotated around the hinge shaft to close the slot opening. When the baffle closes the slot opening of the installation slot, the installation slot and the baffle edge of the baffle are enclosed to form an installation hole matched with the insulation column of the disconnecting switch. During the rotation of the baffle, each baffle has a corresponding locking mechanism fixed on the protective cover.

2. A live disconnection switch insulating guard according to claim 1, characterised in that: The cover body comprises a left sliding plate and a right sliding plate, the two installation slots are separately arranged on the left sliding plate and the right sliding plate, the left sliding plate and the right sliding plate are provided with an elongated hole and a sliding hook, the left sliding plate and the right sliding plate are partially overlapped, the sliding hook on the left sliding plate is hooked in the elongated hole on the right sliding plate and can slide along the elongated hole, and the sliding hook on the right sliding plate is hooked in the elongated hole on the left sliding plate and can slide along the elongated hole.

3. An insulating cover for live dismounting switches according to claim 1 or 2, characterized in that: The locking mechanism comprises a hollow tubular body in the length direction, the hollow tubular body is fixed on the installation hole position of the protective cover, a telescopic working end is arranged in the hollow tubular body, a spring is arranged between the telescopic working end and the hollow tubular body to realize the telescopic movement of the working end, an inclined plane is arranged on the end of the telescopic working end close to the baffle and facing the movement direction of the baffle closing the slot opening, a plurality of clamping grooves are arranged on the baffle, the inclined plane on the telescopic working end is sequentially pressed in the clamping grooves during the rotation of the baffle, and a hook body or a ring body is arranged on the other end of the telescopic working end penetrating through the hollow tubular body.

4. A live disconnection switch insulating guard according to claim 3, characterised in that: The closing end of the baffle when closing the slot opening is composed of several parts in up-down staggered arrangement, and the several parts in up-down staggered arrangement can clamp the protective cover in up-down direction when closing the slot opening.

5. A live disconnection switch insulating guard according to claim 4, characterised in that: The working end and the corresponding hollow tubular body are provided with clamping points matched with each other.

6. A live disconnection switch insulating shield according to claim 1, characterized in that: The left cover body and the right cover body are provided with dismounting hole positions.

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