CN111599578A

CN111599578A - Transformer oil tank and transformer

Info

Publication number: CN111599578A
Application number: CN202010532371.XA
Authority: CN
Inventors: 袁利华; 潘丽杰; 张继文
Original assignee: Individual
Current assignee: Jingtai Electric Group Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2020-08-28
Anticipated expiration: 2040-06-12
Also published as: CN111599578B

Abstract

The invention discloses a transformer oil tank and a transformer, wherein the transformer oil tank comprises a tank body, the bottom of the tank body is provided with an oil outlet pipe, the outlet of the oil outlet pipe is provided with a plug cover, the opening end of the plug cover is provided with a convex shoulder along the radial direction, the side wall of the plug cover and the convex shoulder are internally provided with positioning grooves along the axial extension of the plug cover, and the outer side of the oil outlet pipe close to the outlet end is provided with a plurality of convex blocks positioned in the positioning grooves in parallel along the axial direction; the outer side of the blocking cover is rotatably connected with a password component, and the password component is matched with the convex block to be used for locking the blocking cover on the oil outlet pipe; the transformer oil tank and the transformer are simple in structure and can play a role in preventing transformer oil from being stolen.

Description

Transformer oil tank and transformer

Technical Field

The invention belongs to the technical field of transformers, and particularly relates to a transformer oil tank and a transformer.

Background

The transformer is a device for changing alternating voltage, is an important element for electric energy transmission or signal transmission, has the functions of alternating voltage transformation, line coupling, impedance transformation and circuit isolation, and is an indispensable important component in a power system. And the transformer oil determines whether the transformer can normally operate. The transformer is easy to steal, and the operation means of a thief is changed newly, particularly the transformer of large power equipment is changed into the method of stealing transformer oil from the whole transformer stolen in the past. The oil tanks of the existing transformers are provided with oil drain plugs, and the outer ends of the oil drain plugs protrude out of the tank body and have regular shapes with regular polygonal cross sections, so that criminals can take the machine, oil stealing is caused by unscrewing the oil drain plugs in danger, equipment is easily damaged, and serious consequences are caused. The transformer oil is stolen without power failure, and the oil drain plug of the transformer oil tank is opened, so that the concealment is strong, the supervision and the timely discovery are difficult to obtain, and no convenient and effective supervision means exists at present. For a period of time, the phenomenon of oil stealing of the transformer when no person exists at night and in remote areas occurs, the normal power supply is seriously influenced, great loss is brought to power supply departments, and great inconvenience is brought to normal life of people.

Disclosure of Invention

The invention aims to provide a transformer oil tank and a transformer, which not only have simple structure, but also have the function of preventing transformer oil from being stolen.

In order to achieve the purpose, the invention provides the following technical scheme:

a transformer oil tank comprises a tank body, wherein an oil outlet pipe is arranged at the bottom of the tank body, a plug cover is installed at an outlet of the oil outlet pipe, a convex shoulder is arranged at the opening end of the plug cover along the radial direction, a positioning groove is formed in the side wall of the plug cover and the convex shoulder along the axial extension of the plug cover, and a plurality of convex blocks located in the positioning groove are arranged in parallel along the axial direction on the outer side of the oil outlet pipe close to the outlet end; the outside of blanking cover is rotated and is connected with the password subassembly, the password subassembly is used for locking the blanking cover on oil pipe with the lug cooperation.

Furthermore, the password assembly comprises a plurality of password discs which are rotatably connected to the outer side of the blocking cover and correspond to the convex blocks one by one, an annular locking groove for the convex block to extend into is formed in the end face, far away from the convex shoulder, of each password disc, and sliding grooves communicated with the annular locking groove are formed in the side wall of an inner hole of each password disc along the axial direction of the blocking cover; when the password assembly is in a locking state, at least one lug is in a staggered position with the chute of the password disk corresponding to the lug, and when the password assembly is in an unlocking state, each lug is in a position opposite to the chute of the password disk corresponding to the lug.

Furthermore, the blanking cover is fixedly provided with a head cover at one end far away from the convex shoulder through a pin, and the plurality of password disks are positioned between the head cover and the convex shoulder.

Furthermore, the end face of the inner side of the blocking cover extends to form a plug, and when the blocking cover is arranged at the opening of the oil outlet pipe, the plug extends into the oil outlet pipe.

Furthermore, the outer circumferential side surface of the plug is provided with an annular sealing groove, and a sealing ring is arranged in the annular sealing groove.

The invention also provides a transformer, which comprises the transformer oil tank, and the transformer can effectively prevent the transformer oil in the tank from being stolen.

Advantageous effects

Compared with the prior art, the technical scheme of the invention has the following advantages:

through set up the password subassembly on the blanking cover in oil pipe exit, only stir correct password with all password dishes when, just can take out the outlet of blanking cover from oil pipe, improved the theftproof effect greatly.

Drawings

FIG. 1 is a cross-sectional view of the present invention with the combination disks in the locked position;

FIG. 2 is a cross-sectional view of the present invention with the combination disks in the unlocked position;

FIG. 3 is a sectional view of an oil tank body according to the present invention;

FIG. 4 is a cross-sectional view of the oil drain plug of the present invention;

fig. 5 is a schematic diagram of the combination disk of the present invention.

Detailed Description

Referring to fig. 1-5, a transformer tank includes a tank body 1, an oil outlet pipe 11 is provided at the bottom of the tank body 1, a blanking cover 31 is installed at an outlet of the oil outlet pipe 11, a protruding shoulder 32 is provided at an opening end of the blanking cover 31 along a radial direction, a positioning groove 33 is provided in a sidewall of the blanking cover 31 and the protruding shoulder 32 along an axial direction of the blanking cover 31, and four protrusions 101 located in the positioning groove 33 are provided at an outer side of the oil outlet pipe 11 near the outlet end along the axial direction side by side; the plug cover 31 has the skull 2 through pin 12 fixed mounting in the one end of keeping away from shoulder 32, the outside of plug cover 31 rotates between skull 2 and shoulder 32 and is connected with the password subassembly, the password subassembly is used for locking the plug cover 31 on oil pipe 11 with the cooperation of lug 101.

The password assembly comprises four password disks 4 which are rotatably connected to the outer side of the blocking cover 31 and correspond to the convex blocks 101 one by one, an annular locking groove 42 for the convex blocks 101 to extend into is formed in the end face, far away from the convex shoulder 32, of each password disk 4, and sliding grooves 41 communicated with the annular locking groove 42 are formed in the side wall of an inner hole of each password disk 4 along the axial direction of the blocking cover 31; when the code assembly is in a locked state, at least one projection 101 is in a staggered position with the chute 41 of the code disc 4 corresponding to the projection 101, and when the code assembly is in an unlocked state, each projection 101 is in a position opposite to the chute 41 of the code disc 4 corresponding to the projection 101.

The inner side end face of the blocking cover 31 extends to form a plug 3, and when the blocking cover 31 is installed at the opening of the oil outlet pipe 11, the plug 3 extends into the oil outlet pipe 11. An annular sealing groove 34 is formed in the side face of the outer circumference of the plug 3, and a sealing ring 35 is arranged in the annular sealing groove 34.

When transformer oil in the box body 1 needs to be discharged, the four password disks 4 are firstly rotated to the correct password positions, each convex block 101 is located at the position opposite to the sliding groove 41 of the corresponding password disk 4, and then the plug cover 31 is pulled out from the opening of the oil outlet pipe 11 by holding the head cover 2; the rotation of the blocking cover 31 can be prevented by the engagement of the protrusion 101 with the positioning slot 33. When the oil outlet pipe 11 needs to be plugged, the lug 101 is positioned in the positioning groove 33, the plug 3 is inserted into the outlet of the oil outlet pipe 11, the plug cover 31 is pressed until the opening of the oil outlet pipe 11 abuts against the end face of the inner side of the plug cover 31, and then the password disk 4 is disordered to enable at least one lug 101 to be in a position staggered with the sliding groove 41 of the corresponding password disk 4.

The embodiment also provides a transformer, which comprises the transformer oil tank, and the transformer can effectively prevent the transformer oil in the tank body 1 from being stolen.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A transformer oil tank comprises a tank body, wherein an oil outlet pipe is arranged at the bottom of the tank body, and a blocking cover is arranged at an outlet of the oil outlet pipe; the outside of blanking cover is rotated and is connected with the password subassembly, the password subassembly is used for locking the blanking cover on oil pipe with the lug cooperation.

2. The transformer oil tank of claim 1, wherein the code assembly comprises a plurality of code discs which are rotatably connected to the outer side of the blocking cover and correspond to the lugs in a one-to-one manner, each code disc is provided with an annular locking groove for the lug to extend into on the end surface far away from the convex shoulder, and the side wall of an inner hole of each code disc is provided with a sliding groove communicated with the annular locking groove along the axial direction of the blocking cover; when the password assembly is in a locking state, at least one lug is in a staggered position with the chute of the password disk corresponding to the lug, and when the password assembly is in an unlocking state, each lug is in a position opposite to the chute of the password disk corresponding to the lug.

3. The transformer tank of claim 2, wherein the closure is fixedly attached to the head cover at an end remote from the shoulder by a pin, and the plurality of combination disks are positioned between the head cover and the shoulder.

4. The transformer tank of claim 1, wherein the inner end surface of the plug extends to form a plug, and the plug extends into the oil outlet pipe when the plug is installed at the opening of the oil outlet pipe.

5. The transformer oil tank of claim 4, wherein the outer circumferential side surface of the plug is provided with an annular sealing groove, and a sealing ring is arranged in the annular sealing groove.

6. A transformer, characterized in that it comprises a transformer tank according to any one of claims 1 to 5.