Transformer bushing protective sleeve

Abstract

The utility model discloses a transformer bushing protective sleeve, which comprises a bushing, a first protective sleeve matched with the bushing is covered outside the bushing, the first protective sleeve comprises two groups of first shells which are arranged in a mirror image manner, a second protective sleeve is detachably connected outside the first protective sleeve, and the second protective sleeve comprises two groups of second shells which are arranged in a mirror image manner. The two sets of first shells are connected with the two sets of second shells respectively and are locked through the first locking assembly, and the two sets of second shells can be locked through the second locking assembly. A second protection sleeve is arranged outside the first protection sleeve for secondary protection, the protection capacity of the sleeve is further improved, the first shell and the second shells can be connected through the first locking assembly, the two second shells can be locked and connected through the second locking assembly, disassembly and assembly are convenient, the dual-protection structure is adopted, and the practicability is high. And a better protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sleeves, in particular to a protective sleeve for a transformer bushing. Background Technique

[0002] The main functions of a transformer bushing are insulation and protection, and it can also prevent electrical accidents caused by condensation flashover, pollution flashover, icicle sticking snow, etc., improving the operation safety and stability of the transformer.

[0003] The existing transformer bushings are mainly made of ceramic materials. The plasticity and toughness of ceramic materials are poor, and the texture is brittle. When installing the transformer bushing, there will be more friction between the transformer bushing and the transformer shell, which is likely to cause cracks at the bottom of the transformer bushing, affecting the use of the transformer bushing. In addition, there is no protective measure on the outside of the transformer bushing, resulting in the main body of the transformer bushing being easily damaged by collision with other objects during installation or handling, making the transformer bushing unable to be used normally. For this reason, we propose a protective sleeve for a transformer bushing. Content of the Utility Model

[0004] The purpose of the utility model is to provide a protective sleeve for a transformer bushing to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A protective sleeve for a transformer bushing, including a bushing, the outside of the bushing is covered with a first protective sleeve adapted to it, the first protective sleeve includes two groups of first shells arranged mirror-symmetrically, the outside of the first protective sleeve is detachably connected with a second protective sleeve, the second protective sleeve includes two groups of second shells arranged mirror-symmetrically, the two groups of first shells are respectively connected with the two groups of second shells and locked by a first locking component, and the two groups of second shells can be locked by a second locking component.

[0006] Preferably, the first locking component includes a clamping block, a clamping groove and a bolt. One group of the clamping blocks is installed at each end of the first shell. The clamping block can be inserted into the clamping groove opened in the second shell and locked by the bolt. The bolt penetrates the clamping block and is threadedly connected with the second shell.

[0007] Preferably, the second locking component includes a first limit seat, a second limit seat, a sliding groove, a spring and a locking tongue. The first limit seat is installed on both sides of one of the second shells, the second limit seat is installed on both sides of the other second shell, the sliding groove is opened at both ends of the second limit seat, the spring is installed in the inner cavity of the sliding groove, one end of the spring is installed with the locking tongue, and the two groups of locking tongues can penetrate the first limit seat to achieve locking.

[0008] Preferably, connecting seats are integrally formed at the bottoms of the two groups of the second shells. The two groups of connecting seats are arranged in a mirror image, and two first positioning holes are formed through each group of connecting seats.

[0009] Preferably, second positioning holes are formed on one side of the two groups of connecting seats facing each other.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. The present utility model uses the first protective sleeve adapted to the shape of the sleeve to protect its body, and a second protective sleeve is arranged outside the first protective sleeve for secondary protection, further improving the protection ability of the sleeve. Moreover, the first locking component can be used to connect the first shell and the second shell, and the second locking component can be used to lock and connect the two groups of second shells. The disassembly and assembly are convenient. Compared with the prior art, it is convenient to disassemble and assemble, and a double protection structure is set, having a better protection effect.

[0012] 2. When the present utility model is installed, the block is inserted into the slot, and then the bolt penetrates the block and is threadedly connected to the second shell, and the locking connection between the first shell and the second shell can be completed. The disassembly and assembly are convenient. Press the lock tongue to make it retract into the chute opened in the second limiting seat, and compress the spring. Then, the two groups of second shells arranged in a mirror image are butted, and then the spring resets to push the lock tongue into the first limiting seat, and the locking connection between the two groups of second shells can be completed. Using fasteners such as screws in the prior art to penetrate the first positioning holes opened in the connecting seat, the second protective sleeve can be installed on the transformer shell to complete the protection of the sleeve. The opened second positioning holes will not affect the installation connection of a group of blocks and bolts at the lower end of the first shell. Using the threaded part at the bottom of the sleeve, it can be threadedly connected to the transformer to complete the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an exploded cross-sectional view of the overall structure of the present utility model;

[0014] Figure 2 is an enlarged view of part A of the structure of the present utility model;

[0015] Figure 3 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 4 is a bottom view of the overall structure of the present utility model.

[0017] In the figure: 1. Sleeve, 2. First protective sleeve, 3. Second protective sleeve, 4. Block, 5. Slot, 6. Bolt, 7. First limiting seat, 8. Second limiting seat, 9. Chute, 10. Spring, 11. Lock tongue, 12. Connecting seat, 13. First positioning hole, 14. Second positioning hole. Detailed implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0019] Embodiment 1

[0020] Please refer to Figures 1-4 As shown, the present invention provides a protective sleeve for a transformer bushing, including a bushing 1. The outside of the bushing 1 is covered with a first protective sleeve 2 adapted thereto. The first protective sleeve 2 includes two groups of mirror-image first shells. The outside of the first protective sleeve 2 is detachably connected with a second protective sleeve 3. The second protective sleeve 3 includes two groups of mirror-image second shells. The two groups of first shells are respectively connected to the two groups of second shells and locked by a first locking component. The two groups of second shells can be locked by a second locking component.

[0021] In this embodiment, the first protective sleeve 2 adapted to the shape of the bushing 1 is used to protect its body. The outside of the first protective sleeve 2 is provided with a second protective sleeve 3 for secondary protection, further improving the protection ability of the bushing 1. And the first locking component can be used to connect the first shell and the second shell, and the second locking component can be used to lock and connect the two groups of second shells. The disassembly and assembly are convenient. Compared with the prior art, it is convenient to disassemble and assemble, and a double protection structure is provided, with better protection effect.

[0022] Please refer to Figures 1-4 As shown, the first locking component includes a clamping block 4, a clamping groove 5 and a bolt 6. A clamping block 4 is installed at each end of the first shell. The clamping block 4 can be inserted into the clamping groove 5 opened in the second shell and locked by the bolt 6. The bolt 6 penetrates through the clamping block 4 and is threadedly connected to the second shell.

[0023] In this embodiment, during installation, the clamping block 4 is inserted into the clamping groove 5, and then the bolt 6 penetrates through the clamping block 4 and is threadedly connected to the second shell, so as to complete the locking connection of the first shell and the second shell. The disassembly and assembly are convenient.

[0024] Please refer to Figures 1-4As shown in the figure, the second locking component includes a first limit seat 7, a second limit seat 8, a sliding groove 9, a spring 10, and a locking tongue 11. The first limit seats 7 are installed on both sides of one group of second shells, and the second limit seats 8 are installed on both sides of the other group of second shells. Sliding grooves 9 are opened at both ends of the second limit seat 8, a spring 10 is installed in the inner cavity of the sliding groove 9, and one end of the spring 10 is installed with the locking tongue 11. The two groups of locking tongues 11 can penetrate the first limit seat 7 to achieve locking. Connection seats 12 are integrally formed at the bottom ends of the two groups of second shells. The two groups of connection seats 12 are arranged in a mirror image, and two first positioning holes 13 are penetratingly opened in each group of connection seats 12. A second positioning hole 14 is opened on one side of the two groups of connection seats 12 facing each other.

[0025] In this embodiment, press the locking tongue 11 to make it retract into the sliding groove 9 opened in the second limit seat 8, and compress the spring 10 by extrusion. Then butt the two groups of second shells arranged in a mirror image. Then the spring 10 resets and pushes the locking tongue 11 to insert into the first limit seat 7, and the locking connection of the two groups of second shells can be completed. Using fasteners such as screws in the prior art to penetrate the first positioning holes 13 opened in the connection seat 12, the second protective sleeve 3 can be installed on the transformer shell to complete the protection of the bushing 1. The opened second positioning hole 14 will not affect the installation connection between a set of clamping blocks 4 at the lower end of the first shell and the bolts 6. Using the threaded parts at the bottom of the bushing 1, it can be threadedly connected with the transformer to complete the installation.

[0026] Working principle: First, during installation, insert the clamping block 4 into the card slot 5, and then penetrate the bolt 6 through the clamping block 4 and thread it with the second shell, and the locking connection between the first shell and the second shell can be completed. It is convenient to disassemble and assemble. Press the locking tongue 11 to make it retract into the sliding groove 9 opened in the second limit seat 8, and compress the spring 10 by extrusion. Then butt the two groups of second shells arranged in a mirror image, and then the two groups of protective sleeves can be sleeved outside the bushing 1. Then the spring 10 resets and pushes the locking tongue 11 to insert into the first limit seat 7, and the locking connection of the two groups of second shells can be completed. Using fasteners such as screws in the prior art to penetrate the first positioning holes 13 opened in the connection seat 12, the second protective sleeve 3 can be installed on the transformer shell to complete the protection of the bushing 1. The opened second positioning hole 14 will not affect the installation connection between a set of clamping blocks 4 at the lower end of the first shell and the bolts 6.

[0027] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A transformer bushing protective sleeve, comprising a bushing (1), characterized in that: The outer cover of the sleeve (1) is provided with a first protective sleeve (2) adapted thereto, the first protective sleeve (2) comprising two groups of first shells arranged in a mirror image, the outer part of the first protective sleeve (2) is detachably connected to a second protective sleeve (3), the second protective sleeve (3) comprising two groups of second shells arranged in a mirror image, the two groups of the first shells are respectively connected to the two groups of the second shells and are locked by a first locking assembly, and the two groups of the second shells can be locked by a second locking assembly.

2. The transformer bushing protective cover according to claim 1, characterized in that: The first locking assembly comprises a clamping block (4), a clamping slot (5) and a bolt (6); a group of the clamping blocks (4) are respectively installed at both ends of the first shell; the clamping blocks (4) can be inserted into the clamping slot (5) provided in the second shell and locked by the bolt (6); the bolt (6) penetrates the clamping block (4) and is threadedly connected to the second shell.

3. The transformer bushing protective cover according to claim 2, characterized in that: The second locking assembly comprises a first limiting seat (7), a second limiting seat (8), a sliding groove (9), a spring (10) and a locking tongue (11), wherein the first limiting seat (7) is installed on both sides of one group of the second shells, and the second limiting seat (8) is installed on both sides of the other group of the second shells, the sliding groove (9) is provided at both ends of the second limiting seat (8), the spring (10) is installed in the inner cavity of the sliding groove (9), and the locking tongue (11) is installed at one end of the spring (10), and the two groups of locking tongues (11) can penetrate the first limiting seat (7) to achieve locking.

4. The transformer bushing protective cover according to claim 3, characterized in that: The bottom ends of the two groups of the second shells are integrally formed with a connecting seat (12), the two groups of the connecting seats (12) are arranged in a mirror image, and each group of the connecting seats (12) is provided with two groups of first positioning holes (13) extending therethrough.

5. The transformer bushing protective cover according to claim 4, characterized in that: A second positioning hole (14) is formed on one side opposite to the two groups of connecting seats (12).

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