CN223728582U - Novel Transformer Pin Structure - Google Patents

Abstract

The utility model relates to the technical field of transformers and discloses a novel transformer pin structure which comprises two clamping pieces which are spliced and installed together, wherein each clamping piece is locked through a pair of bolt groups, an adjustor is installed between the bolt groups which are mutually close to each other in the two clamping pieces, the bolt groups, the clamping pieces and the adjustor are sleeved with the same protection box, each clamping piece comprises an ear plate and a reducer pipe, a through groove is formed in one side of each reducer pipe along the axial direction, the two sides of each through groove are fixedly provided with the ear plates, a pair of through holes for penetrating through the bolt groups are formed in the ear plates, and each reducer pipe is formed by integrally processing a clamping section and a splicing section which are connected through end parts. The utility model can reduce the resistance and local heating by the large-area contact grafting mode of the two grafting sections, can simplify the installation steps by replacing the traditional double-bolt group connection by the regulator, and improve the installation and maintenance efficiency, and in addition, can isolate the corrosion of the external environment and delay the rust aging of parts by protecting the protection measures of the sealed butt joint part of the box.

Description

Novel transformer pin structure

Technical Field

The utility model relates to the technical field of transformers, in particular to a novel transformer pin structure.

Background

Referring to fig. 1, the existing butt joint of a cable and a transformer is realized through a pin structure, the pin structure mainly comprises two pairs of clips, one ends of the clips, which are close to each other, are fixedly provided with a connecting plate, the opening sides of the clips are fixedly provided with a pair of ear plates, the ear plates are provided with a pair of through holes, the aligned through holes are locked through bolt groups, so that one clip is connected with a conductor of the cable, the other clip is connected with a pin of the transformer, and the two connecting plates are fixedly connected through the two pairs of bolt groups.

The problems are that the contact area of the two connecting plates is limited, the resistance is increased, the local temperature is increased, the operation amount is large in a mode of connecting the connecting plates through the two pairs of bolt groups, the installation and maintenance efficiency is low, the structure is exposed to the environment, and parts are easy to rust and damage.

Therefore, in order to solve the above-mentioned problems, a novel transformer pin structure is proposed.

Disclosure of utility model

The utility model aims to provide a novel transformer pin structure which has large butt joint area, convenient operation and isolation effect, thereby solving the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The novel transformer pin structure comprises two clamping pieces which are installed together in a plugging mode, each clamping piece is locked through a pair of bolt groups, a regulator is installed between the bolt groups which are close to each other in the clamping pieces, the bolt groups, the clamping pieces and the regulator are sleeved with the same protection box, each clamping piece comprises an ear plate and a reducer pipe, a through groove is formed in one side of each reducer pipe along the axial direction, the two sides of each through groove are fixedly provided with the ear plates, a pair of through holes for penetrating through the bolt groups are formed in the ear plates, and each reducer pipe is formed by integrally processing a clamping section and a plugging section which are connected through end portions.

Specifically, the clamping section is in a straight cylinder shape, and the inner diameter of the plugging section close to the clamping section is smaller than the inner diameter of the clamping section.

Specifically, contained angle between grafting section side and the axis is 1, and the top internal diameter of grafting section is all less than the bottom internal diameter, the inside of upside grafting section is pegged graft to downside grafting section under the regulator is taut.

Specifically, the protection box includes box body, knot circle and pothook, the quantity of box body is two and articulates mutually through the hinge, the arc holds in the palm is all installed to the equal intercommunication in both ends of box body, one of them the lateral wall fixed mounting that the hinge was kept away from to the box body has the pothook, another the lateral wall fixed mounting that the hinge was kept away from to the box body has the knot circle, two the pothook is with detaining the looks joint of circle when the box body lock.

Specifically, the protection box is still including sealed pad and sealing washer, the circumference inboard fixed mounting of arc support has sealed pad, one of them the lock face fixed mounting of box body has the sealing washer.

Compared with the prior art, the utility model has the beneficial effects that:

The resistance can be reduced and local heating can be reduced by the large-area contact grafting mode of the two grafting sections, the traditional double-bolt group connection is replaced by the regulator, the installation steps can be simplified, the installation and maintenance efficiency is improved, in addition, the protection measures of the sealing butt joint part of the protection box can isolate the corrosion of the external environment, and the rust and aging of parts are delayed.

Drawings

FIG. 1 is a front view of a prior art transformer pin structure;

FIG. 2 is a front view of the present utility model as assembled;

FIG. 3 is a cross-sectional view of a clip of the present utility model;

fig. 4 is a schematic view of the protection box of the present utility model.

In the figure, a bolt group 1, a clamping piece 2, a lug plate 21, a clamping section 22, a plugging section 23, a regulator 3, a protection box 4, a sealing ring 41, a buckling ring 42, an arc-shaped support 43, a sealing gasket 44, a clamping hook 45 and a box body 46 are arranged.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment comprises the following steps:

Referring to fig. 2, a novel transformer pin structure is provided, which comprises two clamping pieces 2 which are inserted and installed together, each clamping piece 2 is locked by a pair of bolt groups 1, each pair of bolt groups 1 are distributed symmetrically up and down, each bolt group 1 is an existing part composed of a bolt, a nut and a gasket, one clamping piece 2 is used for clamping a conductor of a cable, and the other clamping piece 2 is used for connecting a pin of a transformer.

The adjuster 3 is installed between the bolt groups 1 which are close to each other in the two clamping pieces 2, the adjuster 3 is made of insulating materials, such as epoxy resin matrix composite materials, the adjuster 3 is an existing part which is composed of two adjusting pipes, hanging rings, locking nuts and other structures, the number of the hanging rings is two, screws are fixedly installed, the threads of the two screws are opposite in rotation direction, screw holes for screwing the screws are formed in two ends of the adjusting pipes, the adjusting pipes can move the two hanging rings oppositely (away from each other and close to each other), pushing force or pulling force is applied between the two bolt groups 1, the distance between the two clamping pieces 2 is adjusted, and after the distance is adjusted, the locking nuts on the screws are tightly abutted to the adjusting pipes to be locked.

In addition, bolt group 1, folder 2 and 3 cover of regulator are equipped with same protection box 4, and protection box 4 plays the isolation protection effect, avoids the erosion damage of external environment to spare part, when guaranteeing joint strength, also convenient to dismantle the maintenance when the maintenance.

Referring to fig. 3, the clip 2 has the following structure:

The material of the clamping piece 2 is preferably aluminum alloy, the clamping piece 2 comprises an ear plate 21 and a reducer pipe, a through groove is formed in one side of the reducer pipe along the axial direction, the ear plate 21 is fixedly arranged on two sides of the through groove, a pair of through holes for penetrating through the bolt group 1 are formed in the ear plate 21, the opening of the through groove enables the reducer pipe to have a certain opening and closing range, the reducer pipe is favorably sleeved on a conductor and a pin, and the two side ear plates 21 can be locked through the bolt group 1 arranged in the through holes.

The reducer pipe is integrally processed by the clamping section 22 and the inserting section 23 which are connected by the end parts, so that the uniformity of wall thickness and the use strength can be ensured.

The clamping section 22 is in a straight cylinder shape, the inner diameter of the inserting section 23 close to the clamping section 22 is smaller than the inner diameter of the clamping section 22, the clamping section 22 is used for being inserted with a conductor and a pin, and the inserting section 23 with the inner diameter smaller than the clamping section 22 also has a limiting function, so that whether the insertion is sufficient or not can be conveniently known.

The included angle between the side surface of the inserting section 23 and the axis is 1 degree, the inner diameter of the top of the inserting section 23 is smaller than the inner diameter of the bottom, the lower inserting section 23 is inserted into the upper inserting section 23 when the regulator 3 is tensioned, the inserting matching of the inserting section 23 is facilitated, the contact area after inserting is large, and the resistance value and the temperature of the butt joint are effectively reduced.

Referring to fig. 4, the structure of the protection box 4:

The protection box 4 comprises two box bodies 46, buckling rings 42 and clamping hooks 45, the number of the box bodies 46 is two, the two box bodies are hinged through hinges, arc-shaped supports 43 are installed at two ends of each box body 46 in a communicated mode, one box body 46 is away from the side wall of each hinge, the clamping hooks 45 are fixedly installed on the side wall, away from the hinge, of the other box body 46, the buckling rings 42 are fixedly installed on the side wall, away from the hinge, of each box body 46, and the clamping hooks 45 are clamped with the corresponding buckling rings 42 when the two box bodies 46 are buckled.

The two box bodies 46 form a complete isolation box when being buckled, the two arc supports 43 form a complete isolation ring when being buckled, the clamping hooks 45 have elasticity, the box bodies 46 can be prevented from being opened when being clamped in the buckling rings 42, and the box bodies 46 can be opened only after the clamping hooks 45 are manually pulled back to be separated from the buckling rings 42, so that the installation and the disassembly are convenient.

The protection box 4 further comprises a sealing gasket 44 and a sealing ring 41, the sealing gasket 44 is fixedly arranged on the inner side of the circumference of the arc-shaped support 43, the sealing ring 41 is fixedly arranged on the buckling surface of one box body 46, the sealing gasket 44 is used for being in contact with a conductor and a pin when the two box bodies 46 are buckled, and the sealing ring 41 is positioned between the buckling surfaces of the two box bodies 46 so as to improve the sealing and isolation performance.

The working principle of the embodiment is as follows:

The preparation of pretreatment, namely peeling the cable end to expose the conductor, inserting the conductor into the clamping section 22 of the upper clamping piece 2 until the conductor abuts against the upper end of the upper splicing section 23, and installing and locking two bolt groups 1 at the splicing depth;

Pins are inserted into the clamping sections 22 of the lower clamping pieces 2 until the pins are abutted against the lower ends of the lower insertion sections 23, so that the two bolt groups 1 are installed and locked after the insertion depth is ensured;

the regulator 3 is in the long-distance initial state, the hanging rings at the two ends of the regulator 3 are pressed in the process of installing the bolt group 1, and the pre-plugging of the upper plugging section 23 and the lower plugging section 23 is completed.

The main body assembly, namely, the two hanging rings are moved close to each other by screwing an adjusting pipe in the adjuster 3, and a pulling force is applied between the two bolt groups 1, so that the aim of shortening the distance between the two clamping pieces 2 is fulfilled, and the two inserting sections 23 are tightly inserted;

after the adjustment is completed, the locking nut in the adjuster 3 is tightly abutted against the adjusting pipe for locking.

And the protection box 4 is arranged outside the bolt group 1, the clamping piece 2 and the regulator 3.

The quick assembly disassembly has been realized when guaranteeing joint strength, effectively promotes reliability, durability and life of transformer pin structure.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (5)

1. The novel transformer pin structure is characterized by comprising two clamping pieces (2) which are installed together in a plugging mode, each clamping piece (2) is locked through a pair of bolt groups (1), a regulator (3) is installed between the bolt groups (1) which are close to each other in the two clamping pieces (2), the same protection box (4) is sleeved on the bolt groups (1), the clamping pieces (2) and the regulator (3), each clamping piece (2) comprises an ear plate (21) and a reducer pipe, a through groove is formed in one side of each reducer pipe along the axial direction, the two sides of each through groove are fixedly provided with the corresponding ear plate (21), a pair of through holes for penetrating the corresponding bolt groups (1) are formed in the corresponding ear plate (21), and each reducer pipe is formed by integrally machining a clamping section (22) and a plugging section (23) which are connected through end portions.

2. The novel transformer pin structure of claim 1, wherein the clamping section (22) is in a straight cylinder shape, and the inner diameter of the plugging section (23) close to the clamping section (22) is smaller than the inner diameter of the clamping section (22).

3. The novel transformer pin structure of claim 2, wherein an included angle between the side surface of the inserting section (23) and the axis is 1 DEG, the top inner diameter of the inserting section (23) is smaller than the bottom inner diameter, and the lower inserting section (23) is inserted into the upper inserting section (23) when the regulator (3) is tensioned.

4. The novel transformer pin structure of claim 1, wherein the protection box (4) comprises two box bodies (46), buckling rings (42) and clamping hooks (45), the two box bodies (46) are hinged through hinges, the two ends of each box body (46) are respectively provided with an arc-shaped support (43) in a communicating mode, one box body (46) is fixedly provided with the clamping hooks (45) away from the side wall of the hinge, the other box body (46) is fixedly provided with the buckling rings (42) away from the side wall of the hinge, and the clamping hooks (45) are clamped with the buckling rings (42) when the two box bodies (46) are buckled.

5. The novel transformer pin structure of claim 4, wherein the protection box (4) further comprises a sealing gasket (44) and a sealing ring (41), the sealing gasket (44) is fixedly arranged on the inner side of the circumference of the arc-shaped support (43), and the sealing ring (41) is fixedly arranged on the buckling surface of one box body (46).