CN216200658U - Quick sampling valve of transformer insulating oil - Google Patents

Abstract

The utility model provides a transformer insulating oil rapid sampling valve which comprises a connecting seat, wherein a plug seat is installed on the connecting seat, a groove body is arranged at one end, away from the connecting seat, of the plug seat, a through hole penetrating through the plug seat is formed in the bottom of the groove body of the plug seat, an oil discharging channel is arranged inside a plug, one side of the bottom of the oil discharging channel penetrates through the side wall of the plug, the top of the oil discharging channel penetrates out of a protruding portion of the top of the plug, a first sealing rubber block is arranged at the top of the protruding portion of the top of the plug, a screw cap is arranged on the outer side of the protruding portion of the top of the plug, the bottom surface of the screw cap is pressed on the top surface of the first sealing rubber block, an outer cap is arranged on the side wall of the plug seat, and the outer cap surrounds the plug and the screw cap and a round nut on the plug. The plug two-stage rubber ring seal provided by the utility model can effectively prevent air from entering an oil sample and the inside of a transformer, prevent insulating oil from leaking and eliminate unsafe factors in the oil sample collection process; and the sampling speed of the insulating oil can be conveniently adjusted by adjusting the tightness degree of the round nut.

Description

Quick sampling valve of transformer insulating oil

Technical Field

The utility model belongs to the technical field of mechanical design and manufacture, and particularly relates to a transformer insulating oil rapid sampling valve.

Background

With the continuous development of power grid technology and the continuous improvement of voltage grade, large oil-immersed transformers are widely adopted. The insulating oil in the transformer plays the roles of insulation and cooling, the quality of the insulating oil of the transformer in operation is directly related to the safe and stable operation of a power grid, and the sampling of the insulating oil is a very important link related to whether the quality of the insulating oil in the transformer can be truly and effectively reflected. The existing transformer insulating oil sampling valve has unsafe factors such as oil leakage and air entering the transformer when sampling, so the prior art needs to be improved.

Disclosure of Invention

The utility model aims to provide a quick sampling valve for transformer insulating oil, which is particularly suitable for a user to sample the transformer insulating oil.

In order to solve the technical problems, the utility model adopts the technical scheme that:

the utility model provides a transformer insulating oil rapid sampling valve, which comprises a connecting seat, a plug seat is installed on the connecting seat, a groove body is arranged at one end of the plug seat far away from the connecting seat, a through hole penetrating the plug seat is arranged at the bottom of the groove body of the plug seat, a screwed pipe is arranged at one end of the plug seat far away from the connecting seat, the screwed pipe is communicated with the groove body of the plug seat, a plug is arranged in the groove body of the screwed pipe and the plug seat, the outer side wall of the plug is sealed with the inner wall of the screwed pipe, a second sealing rubber block is arranged between the bottom of the plug and the bottom in the groove body of the plug seat, a boss-shaped bulge is arranged at the top of the plug, a round nut is arranged at the outer side of the screwed pipe, the bulge at the top of the plug penetrates out from the top of the round nut, the edge at the inner side of the top of the round nut limits the edge between the plug and the bulge at the top of the plug, an oil drainage channel is arranged in the plug, one side of the bottom of the oil drainage channel penetrates out from the side wall of the plug, and the top of the oil drainage channel penetrates out of the bulge at the top of the plug. The top of the bulge at the top of the plug is provided with a first sealing rubber block.

Furthermore, a screw cap is arranged on the outer side of the convex part at the top of the plug column, and the bottom surface of the screw cap is pressed on the top surface of the first sealing rubber block.

Further, an outer cap is arranged on the side wall of the plug seat, and the plug column, the screw cap and the round nut are surrounded by the outer cap.

In the optional implementation of this embodiment, be provided with the sealing ring between stopper post lateral wall and the screwed pipe inner wall, the sealing ring has two sets ofly, is first sealing rubber ring and second sealing rubber ring respectively, and first sealing rubber ring and second sealing rubber ring set up one by one to the connecting seat direction along revolving the cap.

In an optional implementation manner of this embodiment, the bottom of the plug seat groove is tapered, and the edge of the bottom of the second sealing rubber block abuts against the tapered bottom of the groove.

In the optional implementation mode of this embodiment, the stopper base lateral wall is provided with the bulge, is provided with the sealing washer between stopper base bulge and the connecting seat, is provided with the third sealing rubber ring between stopper base bulge and the outer cap.

The user will loosen soon on the screwed pipe through adjusting round nut, and the user can adjust the position of stopper post in the stopper seat, and then can separate the cell body of second sealing rubber piece and stopper post bottom, and then oil process. In the using process, the connecting seat is firstly firmly welded at the reserved joint of the transformer oil tank, and the plug seat is screwed on the connecting seat. During sampling, the outer cap is screwed off, the screw cap is rotated for 2-3 circles, the round nut is loosened for 2-3 circles, and the plunger is lifted at the moment; and (3) penetrating the needle head of the syringe into the first sealing rubber block exposed out of the pressing screw cap to enter the oil drainage channel, and taking out the oil sample. After the sampling is finished, the round nut and the screw cap are both screwed down, and the dustproof outer cap is covered.

The utility model has the advantages and positive effects that: by adopting the technical scheme, the plug two-stage rubber ring sealing can effectively prevent air from entering the oil sample and the inside of the transformer, prevent insulating oil from leaking and eliminate unsafe factors in the oil sample collection process; and the sampling speed of the insulating oil can be conveniently adjusted by adjusting the tightness degree of the round nut. Therefore, the rapid sampling valve has the advantages of simple structure, reliable performance and convenient maintenance.

Drawings

Fig. 1 is a schematic front view of the internal structure of the present invention.

In the figure:

。

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples without making any creative effort, shall fall within the protection scope of the present invention.

Unless otherwise defined, technical or scientific terms used in the embodiments of the present application should have the ordinary meaning as understood by those having ordinary skill in the art. The use of "first," "second," and similar terms in the present embodiments does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. "Upper," "lower," "left," "right," "lateral," "vertical," and the like are used solely in relation to the orientation of the components in the figures, and these directional terms are relative terms that are used for descriptive and clarity purposes and that can vary accordingly depending on the orientation in which the components in the figures are placed.

As shown in fig. 1, the transformer insulating oil rapid sampling valve of this embodiment includes a connecting seat 7, a plug seat 5 is installed on the connecting seat 7, a groove is disposed at one end of the plug seat 5 away from the connecting seat 7, a through hole penetrating through the plug seat 5 is disposed at the bottom of the groove of the plug seat 5, a threaded pipe is disposed at one end of the plug seat 5 away from the connecting seat 7, the threaded pipe is communicated with the groove of the plug seat 5, a plug is disposed in the groove of the threaded pipe and the plug seat 5, a seal is disposed between the outer sidewall of the plug and the inner wall of the threaded pipe, a second sealing rubber block 11 is disposed between the bottom of the plug and the inner bottom of the groove of the plug seat 5, a boss-shaped protrusion is disposed at the top of the plug, a round nut 3 is disposed at the outer side of the threaded pipe, the protrusion at the top of the plug penetrates out of the top of the round nut 3, and the edge of the inner side edge of the top of the round nut 3 is limited to the edge between the protrusion of the plug and the protrusion of the top of the plug, the inside oil drain passage 4 that is provided with of cock stem, the cock stem lateral wall is worn out to 4 bottom one sides of oil drain passage, and follows at 4 tops of oil drain passage the bellying at cock stem top is worn out, and the bellying top at cock stem top is provided with first sealing rubber piece 8, and the bellying outside at cock stem top is provided with spiral cap 2, and 2 bottom surfaces of spiral cap press at 8 top surfaces of first sealing rubber piece, are provided with outer cap 1 on the 5 lateral walls of cock seat, and outer cap 1 is including cock stem and the spiral cap 2 and the round nut 3 of it surround.

In the optional implementation manner of this embodiment, there are two sets of sealing rings arranged between the plug sidewall and the threaded pipe inner wall, where the two sets of sealing rings are respectively a first sealing rubber ring 9 and a second sealing rubber ring 10, and the first sealing rubber ring 9 and the second sealing rubber ring 10 are arranged one by one along the screw cap 2 toward the connecting seat 7.

In an optional embodiment of this embodiment, the bottom of the groove of the plug seat 5 is tapered, and the edge of the bottom of the second sealing rubber block 11 abuts against the tapered bottom of the groove.

In an optional embodiment of this embodiment, a protruding portion is provided on the sidewall of the plug seat 5, a sealing ring 6 is provided between the protruding portion of the plug seat 5 and the connecting seat 7, and a third sealing rubber ring 12 is provided between the protruding portion of the plug seat 5 and the outer cap 1.

The user will loosen soon on the screwed pipe through adjusting round nut 3, and the user can adjust the position of stopper post in stopper seat 5, and then can separate the cell body of second sealing rubber piece 11 and stopper post bottom, and then oil process. In the using process, the connecting seat 7 is firstly firmly welded at the reserved connecting hole of the transformer oil tank, and the plug seat 5 is screwed on the connecting seat 7. During sampling, the outer cap 1 is firstly screwed off, the screw cap 2 is rotated for 2-3 circles, the round nut 3 is loosened for 2-3 circles, and the plunger is lifted at the moment; and (3) penetrating the needle of the syringe into the first sealing rubber block 8 exposed out of the pressing screw cap 2 to enter the oil drainage channel 4, and taking out an oil sample. After the sampling is finished, the round nut 3 and the screw cap 2 are both screwed down, and the dustproof outer cap 1 is covered.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the utility model. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (6)

1. The utility model provides a quick sampling valve of transformer insulating oil which characterized in that: comprises a connecting seat (7), a plug seat (5) is installed on the connecting seat (7), a groove body is arranged at one end of the plug seat (5) far away from the connecting seat (7), a through hole penetrating through the plug seat (5) is arranged at the bottom of the groove body of the plug seat (5), a screwed pipe is arranged at one end of the plug seat (5) far away from the connecting seat (7), the screwed pipe is communicated with the groove body of the plug seat (5), a plug column is arranged in the groove body of the plug seat (5), the outer side wall of the plug column is sealed with the inner wall of the screwed pipe, a second sealing rubber block (11) is arranged between the bottom of the plug column and the inner bottom of the groove body of the plug seat (5), a boss-shaped convex part is arranged at the top of the plug column, a round nut (3) is connected with the outer side of the screwed pipe in a threaded manner, and the convex part at the top of the plug column penetrates out from the top of the round nut (3), just the inboard edge in round nut (3) top is right the stopper post with border between the bellying at stopper post top is spacing, the inside oil drain passageway (4) that is provided with of stopper post, wear out oil drain passageway (4) bottom one side the stopper post lateral wall, just oil drain passageway (4) top is followed the bellying at stopper post top is worn out, the bellying top at stopper post top is provided with first sealing rubber piece (8).

2. The transformer insulating oil rapid sampling valve according to claim 1, characterized in that: the outside of the bulge at the top of the plug is provided with a screw cap (2), and the bottom surface of the screw cap (2) is pressed on the top surface of the first sealing rubber block (8).

3. The transformer insulating oil rapid sampling valve according to claim 1, characterized in that: an outer cap (1) is arranged on the side wall of the plug seat (5), and the plug column and the rotary cap (2) and the round nut (3) on the plug column are surrounded by the outer cap (1).

4. The transformer insulating oil rapid sampling valve according to claim 1, characterized in that: the utility model provides a sealing device for plug, including stopper post lateral wall, threaded tube, sealing ring, the sealing ring has two sets ofly, is first sealing rubber ring (9) and second sealing rubber ring (10) respectively, first sealing rubber ring (9) with second sealing rubber ring (10) are followed cap (2) are revolved to connecting seat (7) direction sets up one by one.

5. The transformer insulating oil rapid sampling valve according to claim 1, characterized in that: the bottom of the groove body of the plug seat (5) is conical, and the edge of the bottom of the second sealing rubber block (11) abuts against the conical bottom of the groove body.

6. The transformer insulating oil rapid sampling valve according to claim 1, characterized in that: the stopper seat (5) lateral wall is provided with the bulge, stopper seat (5) bulge with be provided with between connecting seat (7) sealing washer (6), stopper seat (5) bulge with be provided with third sealing rubber ring (12) between outer cap (1).

Images