Insulation thermal shrinkable sleeve convenient to disassemble and assemble

Abstract

The utility model belongs to the technical field of electricians, and particularly relates to an insulating thermal shrinkable sleeve convenient to disassemble and assemble. The insulating thermal shrinkable sleeve convenient to disassemble and assemble comprises a thermal shrinkable sleeve body and a connecting piece, the heat shrinkable sleeve body comprises an accommodating cavity which is arranged inside the heat shrinkable sleeve body and is used for accommodating a busbar, an opening which is arranged at the top of the heat shrinkable sleeve body and is used for the busbar to enter the accommodating cavity, and two connecting sections which are arranged at two sides of the opening and extend upwards; the connecting piece is arranged between the two connecting sections and comprises two strong magnetic buttons which are oppositely arranged on the two connecting sections and can be attracted to each other. When the heat-shrinkable sleeve is used, an operator firstly arranges a busbar in the accommodating cavity through the opening of the heat-shrinkable sleeve body, and then tightly attracts the two connecting sections on the heat-shrinkable sleeve body together by utilizing the strong magnetic buttons which are oppositely arranged on the two connecting sections and can be attracted mutually, so that the busbar is sealed in the accommodating cavity, the operation is simple, and the practicability is high. The heat shrinkable sleeve body is convenient for operators to mount and dismount, and the service life of the strong magnetic button is long, so that the strong magnetic button cannot be aged and damaged like a conventional plastic rivet.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical engineering, and in particular relates to an insulating heat shrink sleeve which is easy to disassemble and assemble. Background Art

[0002] The 10kV side busbar of the main transformer of the substation usually uses a low-voltage busbar as the conductive material, which is made of copper or aluminum. The low-voltage busbar is usually composed of a conductive sheet, an insulating support, and a connecting screw. The connecting screw is used to fix the conductive sheet and the insulating support to make the entire low-voltage busbar structure firm and reliable. The busbar riveted joint is fastened with connecting screws, and an insulating heat shrink sleeve needs to be installed for isolation. The 10kV grounding wire is also installed here. Since the busbar has a large current flowing through it for a long time, it will heat up, so the insulating heat shrink sleeve often hardens, and the plastic rivets of the insulating heat shrink sleeve often age and fall off, causing the connecting screws to be exposed, which poses a certain degree of danger to the safe and stable operation of high-voltage power equipment.

[0003] When the 10kV side reactor, the CT on the low-voltage side of the main transformer, and the knife switch on the low-voltage side of the main transformer are turned on for maintenance and the ground wire is installed before power is supplied, it is necessary to wear high-voltage insulating gloves to remove the ground wire and install insulating heat shrink sleeves on the connecting screws. However, the workers feel very poorly against the skin when wearing insulating gloves at this time, and plastic rivets are often difficult to install, which greatly prolongs the operation time of the workers and is time-consuming and labor-intensive. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide an insulating heat shrink sleeve which has the advantages of quick operation, long service life and is easy to disassemble and assemble.

[0005] The utility model adopts the following technical solutions:

[0006] An insulating heat shrink sleeve that is easy to disassemble and assemble, which can be detachably nested outside a busbar, comprises a heat shrink sleeve body and a connector; the heat shrink sleeve body comprises an accommodating cavity arranged inside the heat shrink sleeve body for accommodating the busbar, an opening arranged at the top of the heat shrink sleeve body for allowing the busbar to enter the accommodating cavity, and two connecting sections extending upwardly arranged on both sides of the opening; the connecting section is arranged between the two connecting sections for sealing the busbar in the accommodating cavity, and comprises two strong magnetic buttons that are relatively arranged on the two connecting sections and can be attracted to each other.

[0007] Furthermore, the strong magnetic button includes an adsorption section with strong magnetic force, an extension section extending outward from one side of the adsorption section, and a fixed section arranged on one side of the extension section.

[0008] Furthermore, the connecting piece also includes a connecting hole arranged on the connecting section for the strong magnetic button to be embedded in, and the extending section can be fixed in the connecting hole.

[0009] Furthermore, the connecting members are provided in plurality and are arranged at intervals along the length direction of the connecting section.

[0010] Furthermore, it also includes an insulating encapsulation sleeve which is detachably arranged on the top of the heat shrink sleeve body and is used to fix the strong magnetic button.

[0011] Furthermore, the insulating envelope comprises a mounting groove for mounting two connecting sections and an embedding hole arranged on a side wall of the mounting groove opposite to the strong magnetic button and capable of embedding the strong magnetic button, and the fixing section can be fixed in the embedding hole.

[0012] Furthermore, the insulating envelope is in a square shape.

[0013] Furthermore, the busbar includes a busbar body and a connecting screw arranged on the busbar body, and the connecting screw includes a screw body and a nut arranged at the other end of the screw body.

[0014] Furthermore, the accommodating cavity includes a mounting section for mounting the busbar body and an accommodating section extending outward from a side of the mounting section and formed to accommodate the screw body and the nut.

[0015] Furthermore, two accommodating sections are provided, and the two accommodating sections are arranged opposite to each other at two sides of the installation section and are connected to the installation section.

[0016] It can be seen from the above description of the utility model that compared with the prior art, the utility model has the following beneficial effects: the application defines the specific structure of the connecting piece through the cooperation between the heat shrink sleeve body and the connecting piece arranged between the two connecting sections. When in use, the operator first sets the busbar in the accommodating cavity through the opening of the heat shrink sleeve body, and then uses the strong magnetic buttons that are relatively arranged on the two connecting sections and can be adsorbed to each other to tightly adsorb the two connecting sections on the heat shrink sleeve body together, so that the busbar is enclosed in the accommodating cavity. The operation is simple, and it is convenient for the operator to install and disassemble the heat shrink sleeve body. In addition, the strong magnetic button has a long service life and will not be aged and damaged like the previous plastic rivets.

[0017] By detachably setting the insulating encapsulating sleeve on the top of the heat shrink sleeve body for fixing the strong magnetic button, the heat shrink sleeve body can be fixed for a second time, thereby preventing the heat shrink sleeve body from aging and falling off during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the insulating heat shrink sleeve installed on the busbar.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the insulating heat shrink sleeve.

[0020] Figure 3 It is a side view of the insulating heat shrink sleeve.

[0021] Figure 4 It is a schematic diagram of the structure of two strong magnetic buttons in the adsorption state.

[0022] Figure 5 It is a schematic diagram of the structure of the insulating envelope.

[0023] Figure 6 It is a schematic cross-sectional view of an insulating heat shrink sleeve.

[0024] In the figure: 1-heat shrink sleeve body, 11-accommodating cavity, 12-opening, 13-connecting section, 14-installing section, 15-accommodating section, 2-connecting piece, 21-strong magnetic button, 22-adsorption section, 23-extension section, 24-fixing section, 3-insulating encapsulation sleeve, 31-installing groove, 32-embedded hole, 4-busbar, 41-busbar body, 42-connecting screw, 43-screw body, 44-nut. DETAILED DESCRIPTION

[0025] The present invention is further described below through specific implementation methods.

[0026] like Figures 1 to 6 As shown, this embodiment provides an insulating heat shrink sleeve that is easy to disassemble and assemble, which can be detachably nested on the outside of the busbar, including a heat shrink sleeve body 1, a connector 2 and an insulating encapsulation sleeve 3; the busbar 4 includes a busbar body 41 and a connecting screw 42 arranged on the busbar body 41, and the connecting screw 41 includes a screw body 43 and a nut 44 arranged at the other end of the screw body 43.

[0027] The heat shrink sleeve body 1 is made of insulating material, and includes an accommodating cavity 11 arranged inside the heat shrink sleeve body 1 for accommodating the busbar 4, an opening 12 arranged at the top of the heat shrink sleeve body 1 for allowing the busbar 4 to enter the accommodating cavity 11, and two connecting sections 13 extending upward on both sides of the opening 12; when in use, the busbar 4 enters the accommodating cavity 11 through the opening 12; specifically, the accommodating cavity 11 includes a mounting section 14 for mounting the busbar body 41 and an accommodating section 15 extending outward from the side of the mounting section 14 to accommodate the screw body 43 and the nut 44; further, two accommodating sections 15 are provided, and the two accommodating sections 15 are relatively arranged on both sides of the mounting section 14 and are connected to the mounting section 14.

[0028] The connector 2 is arranged between the two connecting sections 13 and is used to enclose the busbar 4 in the accommodating chamber 11, and includes two strong magnetic buttons 21 that are relatively arranged on the two connecting sections 11 and can be adsorbed to each other, and a connecting hole that is arranged on the connecting section 13 and can be embedded in the strong magnetic button 21; the two connecting sections 13 on the heat shrink sleeve body 1 are tightly adsorbed together by using the strong magnetic buttons 21 that are relatively arranged on the two connecting sections 13 and can be adsorbed to each other, so that the busbar 4 is enclosed in the accommodating chamber 11, which is simple to operate and convenient for operators to install and disassemble the heat shrink sleeve body 1, and the strong magnetic button 21 has a long service life and will not age and be damaged like the previous plastic rivets; specifically, when installing the insulating heat shrink sleeve, the operator first moves the two connecting sections 13 in opposite directions, and then opens the opening 12 to allow the busbar 4 to enter the accommodating chamber 11. Then, the two connecting sections 13 are moved toward each other so that the two strong magnetic buttons 21 on the two connecting sections 13 are tightly adsorbed together, so that the busbar 4 is enclosed in the accommodating chamber 11; when removing the insulating heat shrink sleeve, the operator only needs to forcefully separate the two strong magnetic buttons 21 on the two connecting sections 13 to move the two connecting sections 13 in opposite directions, thereby opening the opening 12 and separating the heat shrink sleeve body 1 from the busbar; further, an insulating plastic layer is provided on the outside of the strong magnetic button 21, and the strong magnetic button 21 includes an adsorption section 22 with strong magnetic force, an extension section 23 extending outward from one side of the adsorption section 22, and a fixed section 24 provided on one side of the extension section 23; accordingly, the extension section 23 can be fixed in the connecting hole; further, a plurality of connectors 2 are provided, which are spaced apart along the length direction of the connecting section 13.

[0029] The insulating encapsulation sleeve 3 is made of an insulating elastic material and is detachably arranged on the top of the heat shrinkable sleeve body 1 for fixing the strong magnetic button 21; the insulating encapsulation layer 3 can play a secondary fixing role on the heat shrinkable sleeve body 1 to prevent the heat shrinkable sleeve body 1 from aging and falling off during use; specifically, the insulating encapsulation layer 3 includes an installation groove 31 for installing two connecting sections 13 and an embedding hole 32 arranged on the side wall of the installation groove 31 opposite to the strong magnetic button 21 and for the strong magnetic button 21 to be embedded; during installation, the two connecting sections 13 are embedded in the installation groove 31, and the strong magnetic buttons 21 on the two connecting sections 13 can be embedded in the relative embedding holes 32, thereby fixing the two connecting sections 13 in the insulating encapsulation sleeve 3; during disassembly, the operator only needs to use force to detach the strong magnetic button 21 from the embedding hole 32 to disassemble the insulating encapsulation sleeve 3; further, the fixing section 24 can be fixed in the embedding hole 32; further, the insulating encapsulation sleeve 3 is square in shape.

[0030] In summary, with the help of the above-mentioned technical scheme of the utility model, through the cooperation of the heat shrinkable sleeve body 1 and the two strong magnetic buttons 21 that are relatively arranged on the two connecting sections 13 and can be adsorbed on each other, it is convenient for operators to install and remove the heat shrinkable sleeve body 1, and the strong magnetic buttons 21 have a long service life and will not age and be damaged like the previous plastic rivets; in addition, through the insulating encapsulation layer 3 that is detachably arranged on the top of the heat shrinkable sleeve body 1 for fixing the strong magnetic buttons 21, the heat shrinkable sleeve body 1 can be fixed for a second time to prevent the heat shrinkable sleeve body 1 from aging and falling off during use.

[0031] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the scope of application of the present invention and the contents of the specification should still fall within the scope covered by the present invention.

Claims

1. An insulating heat shrink sleeve that is easy to disassemble and assemble, which can be removably nested outside the busbar, characterized in that: It comprises a heat shrinkable sleeve body and a connector; the heat shrinkable sleeve body comprises an accommodating cavity arranged inside the heat shrinkable sleeve body for accommodating a busbar, an opening arranged at the top of the heat shrinkable sleeve body for allowing the busbar to enter the accommodating cavity, and two connecting sections extending upwardly arranged on both sides of the opening; the connecting section is arranged between the two connecting sections for sealing the busbar in the accommodating cavity, and comprises two strong magnetic buttons arranged relatively on the two connecting sections and capable of adsorbing each other.

2. The insulating heat shrink sleeve that is easy to disassemble and assemble according to claim 1, characterized in that: The strong magnetic button comprises an adsorption section with strong magnetic force, an extension section extending outward from one side of the adsorption section, and a fixing section arranged on one side of the extension section.

3. The insulating heat shrink sleeve that is easy to disassemble and assemble according to claim 2, characterized in that: The connecting piece also includes a connecting hole arranged on the connecting section for the strong magnetic button to be embedded in, and the extending section can be fixed in the connecting hole.

4. The insulating heat shrink sleeve that is easy to assemble and disassemble according to claim 3, characterized in that: The connecting pieces are provided in plurality and are arranged at intervals along the length direction of the connecting section.

5. The insulating heat shrink sleeve that is easy to assemble and disassemble according to claim 2, characterized in that: It also includes an insulating encapsulating sleeve which is detachably arranged on the top of the heat shrink sleeve body and is used to fix the strong magnetic button.

6. The insulating heat shrink sleeve that is easy to assemble and disassemble according to claim 5, characterized in that: The insulating encapsulation sleeve comprises an installation groove for installing two connecting sections and an embedding hole arranged on the side wall of the installation groove opposite to the strong magnetic button and capable of embedding the strong magnetic button, and the fixing section can be fixed in the embedding hole.

7. The insulating heat shrink sleeve that is easy to assemble and disassemble according to claim 5, characterized in that: The insulating envelope is in a square shape.

8. The insulating heat shrink sleeve that is easy to assemble and disassemble according to claim 1, characterized in that: The busbar comprises a busbar body and a connecting screw arranged on the busbar body, and the connecting screw comprises a screw body and a nut arranged at the other end of the screw body.

9. The insulating heat shrink sleeve that is easy to assemble and disassemble according to claim 8, characterized in that: The accommodating cavity comprises an installation section for installing the busbar body and an accommodating section extending outward from a side of the installation section and formed to accommodate the screw body and the nut.

10. The easily disassembled insulating heat shrink sleeve according to claim 9, characterized in that: There are two accommodating sections, which are arranged opposite to each other at two sides of the installation section and are communicated with the installation section.

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