Airtight insulating cover for pole-mounted switch FTU

Abstract

The utility model relates to a kind of column switch FTU closed insulation cover, with the lower end opening of column switch FTU is adapted, including left insulating cover and right insulating cover, the splicing of left insulating cover and right insulating cover forms more than one wire hole, operating hole is opened in the left insulating cover, the left insulating cover is connected with protective cover by the connecting portion of flexible structure, the protective cover is detachably embedded in the operating hole of adaptation;By left insulating cover and right insulating cover splicing composition and the lower end opening of column switch FTU is adapted closed insulation cover, left insulating cover and right insulating cover splicing place forms the wire hole for cable to pass through, without destroying FTU original layout structure and connection, without affecting terminal user power demand;Closed insulation cover seals and closes the lower end opening of column switch FTU, avoid the components in the lower end opening of column switch FTU to be affected by moisture rainwater infiltration and insect invasion, improve service life.

Description

Technical Field

[0001] This utility model relates to the field of insulating cover technology, specifically to a sealed insulating cover for a pole-mounted switch FTU. Background Technology

[0002] The feeder terminal unit (FTU) installed with the pole-mounted switch is susceptible to moisture and rainwater infiltration and insect intrusion due to the design of its lower cable connection and switch operating area opening. Therefore, an insulating protective cover is needed to close the lower opening of the pole-mounted switch FTU. At the same time, since power supply is a livelihood security project, the original layout and connection of the FTU must not be damaged when the insulating protective cover is installed later, so as not to affect the power demand of end users. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a sealed insulating cover for a pole-mounted switch FTU to solve the aforementioned problems.

[0004] This utility model provides the following technical solution: A sealed insulating cover for a pole-mounted switch FTU is adapted to the lower opening of the pole-mounted switch FTU. It includes a left insulating cover and a right insulating cover. The joint between the left and right insulating covers forms one or more wire holes. An operating hole is provided on the left insulating cover. A protective cover is connected to the left insulating cover through a flexible connecting part. The protective cover is detachably embedded in the adapted operating hole.

[0005] Preferably, the protective cover is provided with supporting reinforcing ribs.

[0006] Preferably, the protective cover has several sealing protrusions on its sidewall for engaging with the operating hole.

[0007] Preferably, the left insulating cover and the right insulating cover are engaged by one or more snap-fit ​​components.

[0008] Preferably, the snap-fit ​​assembly includes a snap-fit ​​protrusion and a snap-fit ​​slot block.

[0009] Preferably, the left and right insulating covers are provided with an outer protective wall and an inner protective wall on the same side, and an annular groove is formed between the outer protective wall and the inner protective wall. The outer protective wall is used to cooperate with the outer side wall of the pole-mounted switch FTU, and the inner protective wall is used to cooperate with the inner side wall of the lower opening of the pole-mounted switch FTU.

[0010] Preferably, each side where the left and right insulating covers are joined together is provided with a corresponding wire guide wall, and the two wire guide walls of the left and right insulating covers cooperate to form the wire hole.

[0011] Preferably, a sealing block is provided at the opening of the wire guide wall, and a set of one or more coaxial tear strips are pre-set on the sealing block with tear lines, and a hand-held extension is provided at the end of the tear strip.

[0012] This utility model has the following beneficial technical effects: This utility model consists of a left insulating cover and a right insulating cover that are spliced ​​together to form a sealed insulating cover that is compatible with the lower opening of the pole-mounted switch FTU. The splice between the left and right insulating covers forms a wire hole for the cable to pass through, without damaging the original layout and connection of the FTU, and without affecting the power needs of the end user.

[0013] The sealed insulating cover of this utility model seals the lower opening of the pole-mounted switch FTU, preventing moisture and rainwater from seeping into the components inside the lower opening of the pole-mounted switch FTU and insect invasion, thereby improving its service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the combined state structure of Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the separated state structure of Embodiment 1 of this utility model; Figure 3 This is a three-dimensional structural diagram of the left insulating cover in Embodiment 1 of this utility model; Figure 4 This is a three-dimensional structural diagram of the right insulating cover in Embodiment 2 of this utility model; Figure 5 for Figure 4 A magnified schematic diagram of a portion of structure A.

[0015] The attached figures are labeled as follows: 1. Left insulating cover; 11. Outer protective wall; 12. Inner protective wall; 2. Right insulating cover; 3. Wire hole; 31. Wire passage protective wall; 4. Operating hole; 5. Snap-fit ​​assembly; 51. Snap-fit ​​protrusion; 52. Snap-fit ​​slot block; 6. Connecting part; 7. Protective cover; 71. Support reinforcing rib; 72. Sealing protrusion; 8. Sealing block; 81. Tear strip; 82. Handheld extension. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1: A sealed insulating cover for a pole-mounted switch FTU, such as Figures 1-3 As shown, the sealed insulating cover is made of insulating materials such as silicone, rubber, and plastic, and has a certain elastic deformation capability.

[0018] The sealed insulating cover formed by splicing the left insulating cover 1 and the right insulating cover 2 is adapted to the lower opening of the pole-mounted switch FTU. On the side where the left insulating cover 1 and the right insulating cover 2 are spliced ​​together, there is one or more sets of wire passage walls 31 (two sets are used in this embodiment). The structure of the wire passage walls 31 corresponding to the left insulating cover 1 and the right insulating cover 2 can be different. The two wire passage walls 31 that are correspondingly matched between the left insulating cover 1 and the right insulating cover 2 are spliced ​​together to form a wire hole 3. The wire hole 3 is used for the cable at the lower end of the pole-mounted switch FTU to pass through, so that when the sealed insulating cover is later embedded into the lower opening of the pole-mounted switch FTU, the cable of the pole-mounted switch FTU can pass through the spliced ​​wire hole 3 and pass through the sealed insulating cover without breaking the cover.

[0019] The top edge of the left insulating cover 1 is provided with a corresponding outer protective wall 11 and inner protective wall 12. The top edge of the right insulating cover 2 is provided with a corresponding outer protective wall 11 and inner protective wall 12. There is a certain gap between the outer protective wall 11 and the inner protective wall 12, and this gap is adapted to the wall thickness of the lower end of the pole-mounted switch FTU. When the left insulating cover 1 and the right insulating cover 2 are spliced ​​together, the two ends of the outer protective wall 11 of the left insulating cover 1 are connected with the two ends of the outer protective wall 11 of the right insulating cover 2 to form a closed loop structure. The two ends of the inner protective wall 12 of the left insulating cover 1 are connected with the two ends of the inner protective wall 12 of the right insulating cover 2 to form a closed loop structure. When the sealed insulating cover is fitted into the lower opening of the pole-mounted switch FTU, the closed-loop structure formed by the splicing of the two inner protective walls 12 is inserted into the lower opening of the pole-mounted switch FTU and fits tightly against its inner sidewall, reaching the lower panel of the FTU; at the same time, the closed-loop structure formed by the splicing of the two outer protective walls 11 is tightly fitted onto the lower outer sidewall of the pole-mounted switch FTU. Friction textures can be provided on the sidewalls of the outer protective walls 11 and inner protective walls 12 that contact the lower end of the pole-mounted switch FTU to increase friction.

[0020] On the side where the left insulating cover 1 and the right insulating cover 2 are joined together, a snap-fit ​​protrusion 51 and a snap-fit ​​slot block 52 are respectively provided. The snap-fit ​​protrusion 51 and the snap-fit ​​slot block 52 form a snap-fit ​​assembly 5. There is at least one set of snap-fit ​​assemblies 5. In this embodiment, there are five sets of snap-fit ​​assemblies 5. The snap-fit ​​protrusion 51, which has a certain elastic deformation capability, is inserted into the corresponding snap-fit ​​slot block 52 to snap and fix the left insulating cover 1 and the right insulating cover 2 into a whole. The snap-fit ​​protrusion 51 and the snap-fit ​​slot block 52 can be set on the side wall, outer protective wall 11, or inner protective wall 12 where the left insulating cover 1 and the right insulating cover 2 are joined together.

[0021] The connecting part 6 has a long strip structure, with a thin thickness and a long length. The connecting part 6 can be made of a flexible material that can deform within a certain range, or the material of the connecting part 6 can be the same as that of the left insulating cover 1 and the protective cover 7, and be integrally formed. A protective cover 7 is connected to the edge of the left insulating cover 1 via a connecting part 6. An operating hole 4 is provided on the left insulating cover 1, and the protective cover 7 is fitted to the operating hole 4 for opening and closing the operating hole 4. When the sealed insulating cover is inserted into the lower opening of the pole-mounted switch FTU, the operating hole 4 is precisely aligned with the manual open / close (reset) switch operating area on the bottom wall of the pole-mounted switch FTU. This allows the user to perform manual open / close operations on the switch on the bottom wall of the pole-mounted switch FTU without removing the sealed insulating cover, by passing through the operating hole 4. Under normal conditions, the operating hole 4 is closed via the protective cover 7.

[0022] The inner side of the protective cover 7 is provided with an integrally formed supporting reinforcing rib 71. The supporting reinforcing rib 71 can save materials while ensuring that the protective cover 7 has a certain strength. The outer side wall of the protective cover 7 (the side wall in contact with the operating hole 4) is provided with a sealing protrusion 72. The protective cover 7 is tightly inserted into the operating hole 4 through several sealing protrusions 72, and the protective cover 7 has a certain elastic deformation capability.

[0023] Example 2: It includes all the contents of Example 1, except that, as Figure 4 , Figure 5 As shown: Both the left insulating cover 1 and the right insulating cover 2 have sealing blocks 8 at the inner ports of the wire passage walls 31. When the two sets of wire passage walls 31 are spliced ​​together to form the wire hole 3 under normal conditions, the wire hole 3 is closed by the sealing blocks 8; thus, the wire hole 3 that needs to be opened can be selected as needed.

[0024] The sealing block 8 has multiple tear lines coaxially pre-set from its center outwards. Two adjacent sets of tear lines form a tear strip 81. The end of the tear strip 81 is provided with a hand-held extension 82. The opening size of the wire hole 3 can be selected as needed. The user can easily tear the tear strip 81 off the sealing block 8 by holding the extension 82. Since the tear lines are pre-set, the tear strip 81 can be easily torn off. Furthermore, the thickness of the tear strip 81 is relatively thinner than the rest of the sealing block 8, making it easier to tear off.

[0025] Multiple sets of tear strips 81 with different inner diameters are coaxially arranged from the inside to the outside. The tear strip 81 with the corresponding inner diameter can be torn off as needed to control the size of the hole 3.

[0026] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A sealed insulating cover for a pole-mounted switch FTU, adapted to the lower opening of the pole-mounted switch FTU, characterized in that: It includes a left insulating cover (1) and a right insulating cover (2), and the splice of the left insulating cover (1) and the right insulating cover (2) forms one or more wire holes (3). The left insulating cover (1) is provided with an operation hole (4). The left insulating cover (1) is connected to a protective cover (7) through a flexible structure connecting part (6). The protective cover (7) can be detachably embedded in the matching operation hole (4). The left insulating cover (1) and the right insulating cover (2) are each provided with a corresponding wire guide wall (31) on the side where they are spliced ​​together. The two wire guide walls (31) of the left insulating cover (1) and the right insulating cover (2) cooperate to form the wire hole (3). A sealing block (8) is provided at the opening of the wire guide wall (31). A tear line is preset on the sealing block (8) to form a set of more than one coaxial tear strip (81). A hand-held extension (82) is provided at the end of the tear strip (81).

2. The sealed insulating cover for a pole-mounted switch FTU according to claim 1, characterized in that, The protective cover (7) is provided with supporting reinforcing ribs (71).

3. The sealed insulating cover for a pole-mounted switch FTU according to claim 1, characterized in that, The protective cover (7) has several sealing protrusions (72) on its side wall for cooperating with the operating hole (4).

4. The sealed insulating cover for a pole-mounted switch FTU according to claim 1, characterized in that, The left insulating cover (1) and the right insulating cover (2) are engaged by a set of one or more snap-fit ​​components (5).

5. A sealed insulating cover for a pole-mounted switch FTU according to claim 4, characterized in that, The snap-fit ​​assembly (5) includes a snap-fit ​​protrusion (51) and a snap-fit ​​slot block (52).

6. The sealed insulating cover for a pole-mounted switch FTU according to claim 1, characterized in that, The left insulating cover (1) and the right insulating cover (2) are provided with an outer protective wall (11) and an inner protective wall (12) on the same side. An annular groove is formed between the outer protective wall (11) and the inner protective wall (12). The outer protective wall (11) is used to cooperate with the outer wall of the pole-mounted switch FTU, and the inner protective wall (12) is used to cooperate with the inner wall of the lower opening of the pole-mounted switch FTU.

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