CN114220626A

CN114220626A - Tapping terminal protection seat convenient to disassemble and assemble

Info

Publication number: CN114220626A
Application number: CN202111421011.3A
Authority: CN
Inventors: 吴标; 傅燕; 于冀江
Original assignee: Guangdong Guangte Electric Co ltd
Current assignee: Guangdong Guangte Electric Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-03-22

Abstract

A tapping terminal protection seat convenient for disassembly and assembly comprises a ceramic seat body, wherein the ceramic seat body is provided with a through hole; a flange is formed at the lower end of the ceramic base body, wherein at least two sealing rings are fixed at the bottom of the flange, and the sealing rings surround the through hole; guide rails are preset on the left side and the right side of the through hole; the clamping device also comprises a first clamping block, a second clamping block and a screw rod, wherein two ends of the second clamping block are respectively fixed on the left side and the right side of the through hole; two ends of the first clamping block are respectively in sliding fit with the two guide rails; one end of the screw rod is rotatably connected to the second clamping block, and the screw rod is in threaded fit with the first clamping block; the tapping terminal is clamped and fixed through the first clamping block and the second clamping block, so that the protective seat is easy to mount and dismount; through adopting the ceramic pedestal to and, through two sealing washers of bottom fixed at the flange, increase the creepage distance between tapping terminal and other terminals, realize the insulation protection of protection seat to the tapping terminal.

Description

Tapping terminal protection seat convenient to disassemble and assemble

Technical Field

The invention relates to the technical field of dry-type transformers, in particular to a tapping terminal protection seat convenient to disassemble and assemble.

Background

Generally, common transformers include dry-type transformers and oil-immersed transformers, and compared with oil-immersed transformers, dry-type transformers have the advantages of being good in fire resistance, free of pollution, low in loss, low in noise, obvious in energy-saving effect and the like, but the dry-type transformers have higher requirements for operating environments, for example, the environments cannot be too humid or have too much dust and the like. At present, a tapping terminal and a wire outlet terminal of a dry-type transformer are respectively arranged at two sides of a transformer coil, and the tapping terminal and the wire outlet terminal are exposed and extended out, so that a slight discharge phenomenon, namely a creepage phenomenon easily occurs on the surface of an epoxy resin shell of the transformer under a humid environment, the operation of the dry-type transformer is affected, and the operation safety of the dry-type transformer is reduced.

Disclosure of Invention

In view of the shortcomings of the prior art, the invention aims to provide a tapping terminal protection seat convenient to disassemble and assemble.

In order to achieve the purpose, the invention provides a tapping terminal protection seat convenient to disassemble and assemble, which comprises a ceramic seat body, wherein the ceramic seat body is provided with a through hole; a flange is formed at the lower end of the ceramic base body, wherein at least two sealing rings are fixed at the bottom of the flange, and the sealing rings surround the through hole; guide rails are preset on the left side and the right side of the through hole; the clamping device also comprises a first clamping block, a second clamping block and a screw rod, wherein two ends of the second clamping block are respectively fixed on the left side and the right side of the through hole; two ends of the first clamping block are respectively in sliding fit with the two guide rails; one end of the screw rod is rotatably connected to the second clamping block, and the screw rod is in threaded fit with the first clamping block; two first grooves are preset in the first clamping block; two second grooves are preset in the second clamping block, wherein the two second grooves are respectively arranged opposite to the two first grooves.

Further, a worm wheel is fixedly mounted at the other end of the screw rod.

Further, the worm gear comprises a worm, wherein the worm is meshed with the worm wheel.

Further, a mounting seat is fixed to the front side of the through hole, wherein the worm is rotatably connected to the mounting seat.

Further, each first groove and each second groove are of arc-shaped structures.

Furthermore, at least two sealing grooves formed around the through hole are preset at the bottom of the flange, wherein the sealing ring is fixedly embedded in the sealing grooves.

Further, the thickness of the sealing ring is larger than the depth of the sealing groove.

Further, the second clamping block is positioned at the rear sides of the two guide rails.

The invention has the beneficial effects that: the tapping terminal is clamped and fixed through the first clamping block and the second clamping block, so that the protective seat is easy to mount and dismount; through adopting the ceramic pedestal to and, through two sealing washers of bottom fixed at the flange, increase the creepage distance between tapping terminal and other terminals, realize the insulation protection of protection seat to the tapping terminal.

Drawings

Fig. 1 is a front view of a protective seat.

Fig. 2 is a sectional view a-a.

Fig. 3 is a rear view of the protective seat.

The device comprises a ceramic base 1, a flange 2, a through hole 3, a guide rail 4, a first clamping block 5, a first groove 51, a second clamping block 6, a second groove 61, a screw 7, a worm wheel 71, a mounting base 8, a worm 81 and a sealing ring 9.

Detailed Description

To facilitate an understanding of the invention, the invention is described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1 to 3, in the present embodiment, a tapping terminal protection base convenient to disassemble and assemble includes a ceramic base body 1, a first clamping block 5, a second clamping block 6, a screw 7 and a worm 81, wherein the ceramic base body 1 is provided with a through hole 3, the through hole 3 penetrates through the ceramic base body 1, and two ends of the second clamping block 6 are respectively fixed to the left side and the right side of the through hole 3. Guide rails 4 are preset on the left side and the right side of the through hole 3, wherein the two guide rails 4 extend in the front-back direction, and the second clamping block 6 is located on the back sides of the two guide rails 4. Both ends of the first clamping block 5 are respectively in sliding fit with the two guide rails 4, so that the first clamping block 5 can slide in the front-rear direction. The first clamping block 5 is preset with two first grooves 51 in an arc structure, the second clamping block 6 is preset with two second grooves 61 in an arc structure, and the two first grooves 51 are respectively arranged opposite to the two second grooves 61.

In the present embodiment, a mounting seat 8 is fixed at the front side of the through hole 3, wherein the mounting seat 8 is provided with a circular hole, and the worm 81 is rotatably connected to the mounting seat 8 through the circular hole, so that the worm 81 can rotate along the circumferential direction of the worm 81

In the present embodiment, the first clamping block 5 is provided with a screw hole in advance, and the screw 7 is screw-fitted to the first clamping block 5 through the screw hole. The second clamping block 6 is provided with a circular groove in advance, wherein one end of the screw 7 is embedded into the circular groove to be rotationally connected to the second clamping block 6, so that the screw 7 can rotate along the circumferential direction of the screw 7. The first clamping block 5 is driven to slide in the front-rear direction by rotating the screw 7. The other end of the screw 7 is fixedly provided with a worm wheel 71, wherein the worm wheel 71 is in threaded fit with the worm 81, so that the screw 7 can be rotated by rotating the worm 81, and the screw 7 can be rotated more conveniently.

In this embodiment, a flange 2 is formed at the lower end of the ceramic base 1, two sealing grooves are preset at the bottom of the flange 2, and each sealing groove is formed around the through hole 3. A sealing ring 9 is fixedly embedded in each sealing groove, wherein the thickness of the sealing ring 9 is larger than the depth of the sealing groove.

In this embodiment, when the protection seat is used, the tapping terminal is inserted between the first groove 51 and the second groove 61, and simultaneously, the protection seat is pressed on the surface of the epoxy resin casing of the transformer, so that the sealing ring 9 is tightly attached to the surface of the epoxy resin casing, then the worm 81 is rotated to rotate the screw 7, and the first clamping block 5 slides backwards to approach the second clamping block 6 through the rotational driving of the screw 7 until the first clamping block 5 and the second clamping block 6 fixedly clamp the tapping terminal between the first groove 51 and the second groove 61, so that the protection seat is fixed on the surface of the epoxy resin casing. In this embodiment, by adopting the ceramic base body 1 and fixing the two sealing rings 9 at the bottom of the flange 2, the creepage distance between the tapping terminal and other terminals is increased, and the insulation protection of the protection base to the tapping terminal is realized.

The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to limit the present invention in any way. Those skilled in the art can make many changes, modifications, and equivalents to the embodiments of the invention without departing from the scope of the invention as set forth in the claims below. Therefore, equivalent changes made according to the spirit of the present invention should be covered within the protection scope of the present invention without departing from the contents of the technical scheme of the present invention.

Claims

1. The utility model provides a tapping terminal protection seat convenient to dismouting, including ceramic pedestal (1), and, ceramic pedestal (1) is opened there is through-hole (3), its characterized in that: a flange (2) is formed at the lower end of the ceramic base body (1), wherein at least two sealing rings (9) are fixed at the bottom of the flange (2), and the sealing rings (9) surround the through hole (3); guide rails (4) are preset on the left side and the right side of the through hole (3); the clamping device is characterized by further comprising a first clamping block (5), a second clamping block (6) and a screw (7), wherein two ends of the second clamping block (6) are respectively fixed to the left side and the right side of the through hole (3); two ends of the first clamping block (5) are respectively in sliding fit with the two guide rails (4); one end of the screw rod (7) is rotatably connected to the second clamping block (6), and the screw rod (7) is in threaded fit with the first clamping block (5); two first grooves (51) are preset in the first clamping block (5); two second grooves (61) are preset in the second clamping block (6), wherein the two second grooves (61) are respectively arranged opposite to the two first grooves (51).

2. The tapping terminal protection socket of claim 1, wherein: and a worm wheel (71) is fixedly arranged at the other end of the screw rod (7).

3. The tapping terminal protection socket of claim 2, wherein: the worm gear further comprises a worm (81), wherein the worm (81) is meshed with the worm wheel (71).

4. The tapping terminal protection bracket of claim 3, wherein: and a mounting seat (8) is fixed on the front side of the through hole (3), wherein the worm (81) is rotationally connected to the mounting seat (8).

5. The tapping terminal protection socket of claim 1, wherein: each first groove (51) and each second groove (61) are in an arc-shaped structure.

6. The tapping terminal protection socket of claim 1, wherein: at least two sealing grooves formed around the through hole (3) are preset at the bottom of the flange (2), and the sealing ring (9) is fixedly embedded in the sealing grooves.

7. The tapping terminal protection bracket of claim 6, wherein: the thickness of the sealing ring (9) is larger than the depth of the sealing groove.

8. The tapping terminal protection socket of claim 1, wherein: the second clamping blocks (6) are positioned at the rear sides of the two guide rails (4).