Low-voltage line protective cover

Abstract

The utility model provides a low-voltage line protective cover, which comprises an insulating layer made of flexible insulating materials, and is characterized in that the insulating layer comprises a first side edge and a second side edge which can be overlapped with the first side edge; after the first side edge and the second side edge of the insulating layer are overlapped, a containing cavity used for containing a low-voltage line is formed, and the containing cavity is provided with a first port and a second port which are communicated with each other. The first side edge and the second side edge are provided with at least two fasteners at intervals, and the fasteners can tightly wrap the insulating layer on the outer surface of the low-voltage line after connecting the first side edge and the second side edge. When in use, after the insulating layer is wrapped on the outer surface of the low-voltage line, the first side edge and the second side edge are overlapped, and then the first side edge and the second side edge are connected through the fastening piece, so that the insulating layer can be tightly wrapped on the outer surface of the low-voltage line, and the low-voltage line connector is convenient to install, not easy to loosen and relatively high in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage line insulation protection, and particularly relates to a low-voltage line protective cover. Background Art

[0002] Low-voltage power grid lines are closely related to residential electricity consumption. Their layout and wiring are intricate and often wind around some areas close to people's daily lives, such as residential buildings, tree obstacles, and roads. Currently, for the insulation protection of low-voltage overhead bare conductors or the branches or joints of insulated conductors, insulating tapes, medium- and low-voltage insulating heat-shrinkable tapes, or heat-shrinkable insulating protective sleeves are usually used. On the one hand, construction is inconvenient in many scenarios, and on the other hand, they are prone to loosening after being exposed to wind, sun, and rain for a long time, having potential safety hazards such as electric leakage and short circuits, and are likely to cause electric shock accidents. There is an urgent need for an insulating protection product with higher safety performance. Content of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a low-voltage line protective cover with higher insulation protection safety performance.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A low-voltage line protective cover of the utility model includes an insulating layer made of a flexible insulating material. The insulating layer includes a first side edge and a second side edge that can be superposed with the first side edge.

[0006] After the first side edge and the second side edge of the insulating layer are superposed, a receiving cavity for accommodating a low-voltage line is formed. The receiving cavity has a first port and a second port that communicate with each other. At least two fasteners are arranged at intervals between the first side edge and the second side edge. After the fasteners connect the first side edge and the second side edge, the insulating layer can be tightly wrapped around the outer surface of the low-voltage line.

[0007] Preferably, the receiving cavity extends from the first port with the first diameter for a preset distance to the second port and then transitions to the second diameter, and continues to extend to the second port with the second diameter, and the maximum outer diameter of the first diameter is not less than the maximum outer diameter of the second diameter.

[0008] More preferably, the maximum outer diameter of the first diameter is not less than twice the maximum outer diameter of the second diameter.

[0009] More preferably, a fastener is arranged in the middle of the first port.

[0010] Preferably, a convex portion protruding away from the first side edge and the second side edge is arranged in the middle of the top side of the receiving cavity, and the cross-sections of the first port and the second port are the same.

[0011] Preferably, the first side edge and the second side edge extend towards the second port and overlap at the second port to close the second port.

[0012] Preferably, a third port is provided between the first port and the second port in the accommodation cavity, and the third port opens at the first side edge and the second side edge. The third port is used for the low-voltage line to enter the accommodation cavity.

[0013] More preferably, the third port is close to the first port or the second port.

[0014] Preferably, the accommodation cavity extends from the second port to the first port with a third diameter for a first preset distance and then transitions to a fourth diameter, and continues to extend towards the first port with the fourth diameter for a second preset distance. Then, the top side of the accommodation cavity extends obliquely away from the first side edge and the second side edge towards the first port. The maximum outer diameter of the fourth diameter is greater than the maximum outer diameter of the third diameter;

[0015] The fastener is provided in the middle of the first port.

[0016] Preferably, the insulating layer is made of a soft polymer material or PVC, and / or a temperature-sensitive patch is provided on the outer surface of the insulating layer.

[0017] The beneficial effects of the low-voltage line protection cover according to the present invention compared with the prior art are mainly reflected in:

[0018] The insulating layer of the present invention uses a flexible insulating material, which can ensure its fitting degree with the low-voltage line, thereby improving the frictional resistance and stability. After the first side edge and the second side edge of the insulating layer overlap, the accommodation cavity is formed. The accommodation cavity has a first port and a second port that communicate with each other. When in use, after the insulating layer is wrapped around the outer surface of the low-voltage line, the first side edge and the second side edge overlap, and then the first side edge and the second side edge are connected by the fastener, so that the insulating layer can be tightly wrapped around the outer surface of the low-voltage line. The installation is convenient, not easy to loosen, and has high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Specifically illustrated by the preferred embodiments of the present invention shown in the drawings, the above-mentioned and other objects, features and advantages of the present invention will become clearer. The same reference numerals indicate the same parts in all the drawings, and the drawings are not deliberately drawn to scale in actual size, and the focus is on showing the gist of the present invention.

[0020] Figure 1 It is a front view of a low-voltage line protection cover provided in the second embodiment of the present invention;

[0021] Figure 2 is Figure 1 the three-dimensional structure diagram of

[0022] Figure 3 The front view of another low-voltage line protection cover provided by the second embodiment of the present utility model;

[0023] Figure 4 is Figure 3 the three-dimensional structure diagram of

[0024] Figure 5 The front view of a low-voltage line protection cover provided by the third embodiment of the present utility model;

[0025] Figure 6 is Figure 5 the three-dimensional structure diagram of

[0026] Figure 7 The front view of a low-voltage line protection cover provided by the fourth embodiment of the present utility model;

[0027] Figure 8 is Figure 7 the three-dimensional structure diagram of

[0028] Figure 9 The front view of a low-voltage line protection cover provided by the fifth embodiment of the present utility model;

[0029] Figure 10 is Figure 9 the three-dimensional structure diagram of

[0030] Figure 11 The front view of a low-voltage line protection cover provided by the fourth embodiment of the present utility model;

[0031] Figure 12 is Figure 11 the three-dimensional structure diagram of

[0032] Description of the drawings: Insulation layer 1, first side 2, second side 3, first port 4, second port 5, third port 6, plastic nail 7, fixing hole 8, convex part 9. Detailed implementation manners

[0033] The technical solution of the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it. However, the embodiments cited do not limit the present utility model. In this embodiment, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model.

[0034] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element and integrated with it, or there may be an intermediate element at the same time. The terms "installation", "one end", "the other end" and similar expressions used in the present utility model are only for the purpose of illustration.

[0035] Embodiment 1

[0036] As Figures 1 to 12 shown, this embodiment provides a low-voltage line protection cover, which includes an insulating layer 1 made of a flexible insulating material. The insulating layer 1 includes a first side edge 2 and a second side edge 3 that can be superposed with the first side edge 2.

[0037] After the insulating layer 1 superposes the first side edge 2 and the second side edge 3, a receiving cavity for accommodating the low-voltage line is formed. The receiving cavity has a first port 4 and a second port 5 that communicate with each other. At least two fasteners are arranged at intervals between the first side edge 2 and the second side edge 3. After the fasteners connect the first side edge 2 and the second side edge 3, the insulating layer 1 can be tightly wrapped around the outer surface of the low-voltage line.

[0038] The insulating layer 1 of the present utility model is made of a flexible insulating material, which can ensure its fit with the low-voltage line, thereby increasing the frictional resistance and stability. After the insulating layer 1 superposes the first side edge 2 and the second side edge 3, a receiving cavity is formed. The receiving cavity has a first port 4 and a second port 5 that communicate with each other. When in use, after the insulating layer 1 is wrapped around the outer surface of the low-voltage line, the first side edge 2 and the second side edge 3 are superposed, and then the first side edge 2 and the second side edge 3 are connected by fasteners, so that the insulating layer 1 can be tightly wrapped around the outer surface of the low-voltage line. The installation is convenient, not easy to loosen, and has high safety.

[0039] Among them, the insulating layer 1 is preferably made of soft PVC material, which is about 40% lighter than similar silicone materials, and its flame retardancy can reach V0 level of UL94 standard. It can also be a polymer material. Preferably, a temperature-sensitive patch is provided on the outer surface of the insulating layer 1. The temperature-sensitive patch has a temperature-sensitive color-changing function. The inspection personnel can judge the real-time state of the cable joint by judging the color of the temperature-sensitive patch. Of course, it can be understood that the temperature-sensitive patch should be pasted facing the cable joint to improve the sensitivity and accuracy of its temperature-sensitive function.

[0040] Embodiment 2

[0041] As Figures 1 to 4 shown, on the basis of Embodiment 1, the accommodating cavity extends from the first port 4 to the second port 5 at a first diameter for a preset distance and then transitions to a second diameter, and continues to extend to the second port 5 at the second diameter, and the maximum outer diameter of the first diameter is not less than the maximum outer diameter of the second diameter. The protective cover of this embodiment can be applied to the parallel joints of two or more cables. The parallel section cables are accommodated in the accommodating cavity with the first diameter, and the extending length of the first diameter in the accommodating cavity can be adaptively designed according to the on-site joint situation, so as to reliably wrap all the joints that need to be insulated and coated at this place. The cross-section of the first diameter is an oval or kidney-shaped in the shape of a runway.

[0042] The outer diameters of the parallel joint cables are usually equal or not very different. Specifically, the maximum outer diameter of the first diameter is not less than twice the maximum outer diameter of the second diameter. Preferably, a fastener is provided in the middle of the first port 4. When the parallel cables pass through the first diameter, the first port 4 can be tightened by using this fastener, improving the stability of the protective cover, effectively preventing the protective cover from moving due to strong weather factors such as wind and rain, and improving the insulation reliability.

[0043] Embodiment 3

[0044] As Figure 5 and Figure 6 shown, on the basis of Embodiment 1, a convex portion 9 protruding away from the first side 2 and the second side 3 is provided in the middle of the top side of the accommodating cavity. The cross-sections of the first port 4 and the second port 5 are the same. The protective cover with this structural form can be applied to the repair of cable insulation damage, and the convex portion 9 of the protective cover is fixed at the middle joint of the cable.

[0045] Embodiment 4

[0046] As Figure 7 and Figure 8 shown, on the basis of Embodiment 1, the first side 2 and the second side 3 extend towards the second port 5 and overlap at the second port 5 to close the second port 5. A fastener is provided at the second port 5. The protective cover with this structural form can be applied to the terminal joint, and the end side of the terminal joint can be insulated and coated.

[0047] Embodiment 5

[0048] As Figure 9 and Figure 10 shown, on the basis of the first embodiment, a third port 6 is provided between the first port 4 and the second port 5 in the receiving cavity, and the third port 6 opens at the first side 2 and the second side 3. The third port 6 is used for the low-voltage line to enter the receiving cavity. The protective cover with this structural form can be applied to a T-shaped joint. When branching and connecting, the branch cable is extended from the third port 6 out of the receiving cavity. After the branch cable enters the receiving cavity, it usually runs parallel to the main cable for a certain distance. To adapt to this wiring situation, the third port 6 is close to the first port 4 or the second port 5, and enough covering length is reserved for the parallel distance between the branch cable and the main cable to ensure insulation reliability.

[0049] Embodiment Six

[0050] As Figure 11 and Figure 12 shown, on the basis of the first embodiment, the receiving cavity extends a first preset distance from the second port 5 to the first port 4 with a third caliber and then transitions to a fourth caliber, and continues to extend a second preset distance to the first port 4 with the fourth caliber. Then, the top side of the receiving cavity extends obliquely away from the first side 2 and the second side 3 to the first port 4. The maximum outer diameter of the fourth caliber is greater than the maximum outer diameter of the third caliber; a fastener is provided in the middle of the first port 4. The protective cover with this structural form can be applied to the jumper joint at the corner, and the jumper cable is connected by entering the receiving cavity from the bevel of the first port 4.

[0051] It should be noted that the above-mentioned low-voltage line specifically refers to a line with a voltage level below 0.4 kV. The fastener in the embodiment is preferably a plastic nail 7 (not shown in the figure). During the production of the protective cover, fixing holes 8 for the plastic nail 7 are processed at intervals between the first side 2 and the second side plate. During on-site installation, the first side 2 and the second side plate can be buckled and installed by inserting the plastic nail 7 into the fixing hole 8, without other installation tools, which is simple and convenient.

[0052] In this specification, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0053] In the description of this specification, the description referring to terms such as "preferred embodiment", "further embodiment", "other embodiments" or "specific examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0054] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present application.

Claims

1. A low voltage line protective cover, characterized in that: The insulating layer comprises an insulating layer made of a flexible insulating material, wherein the insulating layer comprises a first side edge and a second side edge which can overlap with the first side edge; After the first side and the second side are overlapped, the insulating layer forms a receiving cavity for receiving the low-voltage line, and the receiving cavity has a first port and a second port that are mutually connected; at least two fasteners are arranged at intervals between the first side and the second side, and after the fasteners connect the first side and the second side, the insulating layer can be tightly wrapped around the outer surface of the low-voltage line; The surface of the insulation layer is provided with a temperature sensing patch.

2. A low voltage line protection cover according to claim 1, characterized in that: The accommodating cavity extends from the first port to the second port with a first diameter for a preset distance, then transitions to a second diameter, and continues to extend to the second port with the second diameter, and the maximum outer diameter of the first diameter is not less than the maximum outer diameter of the second diameter.

3. A low voltage line protection cover according to claim 2, characterized in that: The maximum outer diameter of the first caliber is not less than twice that of the second caliber.

4. A low voltage line protection cover according to claim 2 or 3, characterized in that: The fastener is disposed at the middle portion of the first port.

5. The low voltage line protection cover according to claim 1, characterized in that: A protrusion protruding away from the first side edge and the second side edge is provided in the middle of the top side of the accommodating cavity, and the cross section of the first port is the same as that of the second port.

6. A low voltage line protection cover according to claim 1, characterized in that: The first side and the second side extend toward the second port and close the second port after overlapping at the second port.

7. The low voltage line protection cover according to claim 1, characterized in that: The accommodating cavity is provided with a third port between the first port and the second port, and the third port opens at the first side and the second side, and the third port is used for allowing the low-pressure line to pass into the accommodating cavity.

8. A low voltage line protection cover according to claim 7, characterized in that: The third port is close to the first port or the second port.

9. The low voltage line protection cover according to claim 1, characterized in that: The accommodating cavity extends from the second port to the first port with a third caliber for a first preset distance and then transitions to a fourth caliber, and continues to extend to the first port with the fourth caliber for a second preset distance, and the top side of the accommodating cavity extends to the first port in an inclined direction away from the first side edge and the second side edge, and the maximum outer diameter of the fourth caliber is greater than the maximum outer diameter of the third caliber; The fastener is disposed at a middle portion of the first port.

10. The low voltage line protection cover according to claim 1, characterized in that: The insulating layer is made of soft polymer material or PVC.

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