An insulating blanket for a strain clamp

By designing a two-layer "T"-shaped insulating blanket unit and a card slot and strip fixing unit, the problem of existing insulating blankets being unable to wrap irregularly shaped structures has been solved, enabling convenient installation and efficient transportation, and improving the safety and efficiency of live-line work on power distribution networks.

CN224595306UActive Publication Date: 2026-08-04WUHAN LEAD ELECTRIC POWER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN LEAD ELECTRIC POWER TECH CO LTD
Filing Date
2025-08-21
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing insulating blankets are soft and difficult to completely wrap irregularly shaped live and grounded conductors, making them difficult to handle and inconvenient to transport, thus affecting operational safety.

Method used

Design a two-layer overlapping "T"-shaped insulating blanket unit with a fixing unit featuring slots and strips, combined with positioning holes and posts, to achieve convenient installation and disassembly, suitable for wrapping irregularly shaped structures.

Benefits of technology

It improves operational efficiency and safety, simplifies the operation process, facilitates transportation and storage, and ensures insulation performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a tension clamp insulation blanket, comprising two overlapping insulation blanket units, each in a "T" shape. The upper ends of the two insulation blanket units are separated to form an opening, while their lower ends are sealed together. The insulation blanket units are made of a soft insulating material. The open design at the upper end of the tension clamp insulation blanket makes installation and removal easy, especially when replacing insulators during operations, as it can be done without complicated procedures, further improving work efficiency. It can more conveniently and efficiently wrap irregularly shaped live conductors and grounding conductors, while also being easy to transport and store, thereby improving the safety and efficiency of live-line work on power distribution networks.
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Description

Technical Field

[0001] This utility model relates to the field of high-voltage power grid construction technology, and in particular to a tension clamp insulation blanket. Background Technology

[0002] In the field of live-line work on power distribution networks, existing insulating blankets are soft, giving them a significant advantage in carrying and transporting. However, most insulating blankets are currently rectangular, making it difficult to achieve complete wrapping of irregularly shaped live and grounded conductors. In actual wrapping operations, multiple insulating blankets are often needed in conjunction with the blanket clamps to wrap irregularly shaped structures when insulating tension clamps. This process presents numerous challenges for workers, not only due to its difficulty and complexity, but also the risk of incomplete wrapping, which affects the insulation effect and poses potential safety risks.

[0003] In addition, there are many rigid tension clamp shields on the market. These shields are generally large and take up a lot of space, making them extremely inconvenient to transport and store.

[0004] Therefore, a tension clamp insulation blanket is needed to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model addresses the technical problems existing in the prior art by providing a tension clamp insulation blanket.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a tension clamp insulation blanket, comprising two layers of insulation blanket units overlapped together, the insulation blanket units are in the shape of "T", the upper ends of the two insulation blanket units are separated to form an opening, the lower ends of the two insulation blanket units are sealed and attached, and the insulation blanket units are made of soft insulation material.

[0007] Preferably, in the above-mentioned tension clamp insulation blanket, a fixing unit is provided on the upper end of the two insulation blanket units that are close to each other. The fixing unit includes a slot and a strip, and the slot and strip are respectively provided on the two insulation blanket units.

[0008] Preferably, in the above-mentioned tension clamp insulation blanket, the slot and the strip are integrally formed with the insulation blanket unit.

[0009] Preferably, in the above-mentioned tension clamp insulation blanket, the slots and strips are provided in two pairs, and the two slots and strips are parallel to each other.

[0010] Preferably, in the above-mentioned tension clamp insulation blanket, one of the insulation blankets is provided with a positioning hole, and the other insulation blanket is provided with a positioning post, wherein the positioning post is adapted to the positioning hole.

[0011] Preferably, in the above-mentioned tension clamp insulation blanket, the positioning holes and positioning posts are located between the two slots and the two strips.

[0012] Preferably, in the above-mentioned tension clamp insulation blanket, guide surfaces are provided on both sides of the inlet of the slot.

[0013] Preferably, in the above-mentioned tension clamp insulation blanket, the front end of the positioning post is provided with a slit, and the slit is in an expanding shape.

[0014] The beneficial effects of this utility model are as follows: The open design at the top of the tension clamp insulation blanket makes the installation and disassembly of the tension clamp insulation blanket easy and convenient, especially when it is necessary to replace insulators during operation, which can be completed without complicated operations, further improving work efficiency. It can more conveniently and efficiently wrap irregularly shaped live conductors and grounding conductors, and also has the characteristics of easy transportation and convenient storage, thereby improving the safety and efficiency of live-line work in distribution networks. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention in use; Figure 2 This is a schematic diagram of the connection structure of a tension clamp without insulation treatment. Figure 3 This is a schematic diagram of the insulation blanket structure for tension clamps; Figure 4 This is a side view of the insulation blanket for tension clamps; Figure 5 for Figure 4 Enlarged view of a portion of point A in the middle; Figure 6 This is a schematic diagram of the cross-sectional structure after the card strip is inserted into the card slot.

[0016] The attached diagram lists the components represented by each number as follows: 1. Wire, 2. Tension clamp, 3. Insulator, 4. Tension clamp insulation blanket, 5. Slot, 6. Positioning socket, 7. Clip, 8. Positioning post, 9. Guide surface. Detailed Implementation

[0017] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0018] like Figures 1-6As shown, a tension clamp insulation blanket comprises two overlapping insulation blanket units, each in a "T" shape. The upper ends of the two insulation blanket units are separated to form an opening, while the lower ends are sealed together. This sealed joint can be torn open to a suitable position depending on the specific application; that is, the lower sealing boundary can be adjusted during use. The insulation blanket units are made of soft insulating material, using flexible film materials such as EVA, PVC, and TPU, manufactured through welding or pressing processes to avoid pinholes, air leakage, or other factors affecting insulation performance. The tension clamp 2 is used to clamp and fix the wire 1, and the tension clamp insulation blanket 4 is used to wrap the tension clamp 2. The insulator 3 connects to the tension clamp 2 and the power tower, serving as an insulating connection. The upper opening design of the tension clamp insulation blanket 4 facilitates the installation and disassembly of the tension clamp insulation blanket 4, and also makes it easy to replace the tension insulator during operation; the lower end is sealed. In actual operation scenarios, the conductor will be partially bent, and there is a need to replace the insulator 3 at the upper end. Therefore, the lower end has a bent part of the conductor extending downwards in the design, which can ensure that the live body is completely wrapped and there is no risk of exposure.

[0019] This structure is simple and convenient to operate, can completely cover the tension clamp 2, and the entire sheet is about 3mm thick, making it extremely convenient to carry and store, greatly improving the efficiency and safety of the operation.

[0020] Furthermore, a fixing unit is provided on the upper side of the two insulating blanket units that are close to each other. The fixing unit includes a slot 5 and a locking strip 7, which are respectively set on the two insulating blanket units. The slot 5 and the locking strip 7 are integrally formed with the insulating blanket units. After the tension clamp 2 is wrapped, the upper locking strip 7 is inserted into the slot 5 to close the upper opening. Guide surfaces 9 are provided on both sides of the entrance of the slot 5 to facilitate the insertion of the locking strip 7 into the slot 5.

[0021] There are two card slots 5 and two card strips 7, and the two card slots 5 and two card strips 7 are parallel to each other.

[0022] One insulating blanket unit has a positioning hole 6, and the other insulating blanket unit has a positioning post 8, which is adapted to the positioning hole 6. Both the positioning hole 6 and the positioning post 8 are located between two slots 5 and two clips 7. The positioning hole 6 and the positioning post 8 facilitate the positioning of the upper ends of the two insulating blanket units, thus enabling quick alignment of the slots 5 and clips 7.

[0023] Meanwhile, the front end of the positioning pin 8 is provided with a slit, and the slit is in an expanding shape. When the positioning pin 8 is inserted into the positioning hole 6, the slit contracts; after insertion, the slit opens. The tension at the slit acts as a limit, preventing the positioning pin 8 from coming out of the positioning hole 6. This further fixes the positioning pin 8 and the positioning hole 6, sealing the upper opening of the tension clamp insulation blanket 4. When sealing the upper opening of the tension clamp insulation blanket 4, the positioning pin 8 is first inserted into the positioning hole 6, and then the locking strip 7 is inserted into the locking groove 5, thereby sealing the upper opening of the tension clamp insulation blanket 4 and achieving a better insulation effect.

[0024] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A strain clamp insulating blanket characterized by: It includes two overlapping insulating blanket units, each insulating blanket unit being "T" shaped, with the upper ends of the two insulating blanket units separated to form an opening, and the lower ends of the two insulating blanket units being sealed together, the insulating blanket units being made of soft insulating material.

2. The dead end clamp insulating blanket of claim 1, wherein: A fixing unit is provided on the upper side of the two insulating blanket units that are close to each other. The fixing unit includes a slot (5) and a strip (7). The slot (5) and the strip (7) are respectively provided on the two insulating blanket units.

3. The strain clamp insulating blanket of claim 2, wherein: The slot (5) and the strip (7) are integrally formed with the insulating blanket unit.

4. The dead end clamp insulating blanket of claim 2, wherein: The card slot (5) and card strip (7) are provided in two pairs, and the two card slots (5) and card strips (7) are parallel to each other.

5. The strain clamp insulating blanket of claim 4, wherein: One of the insulating blankets is provided with a positioning hole (6), and the other insulating blanket is provided with a positioning post (8), the positioning post (8) being adapted to the positioning hole (6).

6. The dead end clamp insulating blanket of claim 5, wherein: The positioning holes (6) and positioning pins (8) are located between the two slots (5) and the two strips (7).

7. The dead end clamp insulating blanket of claim 2, wherein: Guide surfaces (9) are provided on both sides of the entrance of the slot (5).

8. The dead end clamp insulating blanket of claim 5, wherein: The front end of the positioning pin (8) is provided with a split, and the split is in an expanding shape.