CN202531867U - Anti-theft oil drain valve for transformer - Google Patents
Anti-theft oil drain valve for transformer Download PDFInfo
- Publication number
- CN202531867U CN202531867U CN2012201284153U CN201220128415U CN202531867U CN 202531867 U CN202531867 U CN 202531867U CN 2012201284153 U CN2012201284153 U CN 2012201284153U CN 201220128415 U CN201220128415 U CN 201220128415U CN 202531867 U CN202531867 U CN 202531867U
- Authority
- CN
- China
- Prior art keywords
- valve body
- spool
- transformer
- valve
- oil drain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an anti-theft oil drain valve for a transformer. The anti-theft oil drain valve for the transformer comprises a valve body and a valve core, wherein an oil drain hole with an internal thread is formed in the valve body; a sampling hole is formed in the wall part of the valve body; a sealing ring is arranged at the tail end of the valve core; steps are arranged at the tail end of the oil drain hole in the valve body; the valve core can be screwed into the sampling hole; after the valve core is screwed tightly, the sealing ring at the tail end of the valve core is pressed against the step surface formed at the tail end of the oil drain hole; the front end of the valve core is a cylindrical end; a circle of groove is formed on the outer circle of the cylindrical end; a circular ring is arranged in the groove; and the circular ring is higher than the circumferential surface of the cylindrical end. According to the utility model, the front end of the valve core in the prior art is improved, and the original hexagonal nut is changed into the cylindrical end of which the groove is provided with the circular ring. The anti-theft oil drain valve for the transformer is simple in structure, convenient to machine and safe and reliable; and transformer oil can be prevented from being stolen by lawless persons through the oil drain valve effectively.
Description
Technical field
The utility model belongs to the transformer technology field, especially relates to a kind of transformer anti-theft fuel outlet valve.
Background technique
Common large oil immersed formula transformer bottom is typically provided with the transformer oil discharging valve, has the two kinds of functions that draw oil sample and drain the oil.Its structure is made up of valve body, spool and sheath etc. mostly.The wall portion of valve body is provided with sampling hole; Valve body is provided with drain oil; The spool cylindrical is provided with in the drain oil of the valve body that screw thread is spun on, and the step that the end of spool is provided with in the drain oil of seal ring and valve body forms sealing configuration, and the spool front end is provided with hexagon nut; Sheath is spun on the cylindrical of valve body, adopts screw thread to fix between sheath and valve body.During use; Screw out earlier and unloads lower jacket, slowly screw out spool, spool and valve body blow-by with the hexagon nut of instruments such as spanner through the spool front end; Transformer oil will be lentamente the sampling hole that is provided with of wall portion through valve body slowly flow out, realize sampling to transformer oil; When needs are drained the oil, unload spool from whole back-out of the drain oil of valve body, transformer oil will flow out from the drain oil of valve body, realizes draining the oil.The dual-purpose fuel outlet valve of the transformer of this structure adopts conventional spanner just can operate, and does not have anti-theft feature, is engaged in stealthy activity for the obstinate lawless person of social upward only a few opportunity
is provided.
The model utility content
The purpose of the utility model is the structure to existing transformer fuel outlet valve, and its transformer oil is stolen problem easily, and a kind of transformer fuel outlet valve with anti-theft feature of reliable performance is provided.
For realizing above-mentioned purpose, the utility model has adopted following technological scheme to be: a kind of transformer anti-theft fuel outlet valve comprises valve body and spool; Be provided with tapped drain oil in the valve body, the wall portion of valve body is provided with sampling hole, and the end of spool is provided with seal ring; Drain oil end in the valve body is provided with step, but in the spool precession sampling hole, after screwing; The seal ring of the end of spool withstands on the drain oil end and is provided with on the step surface, it is characterized in that: the spool front end is the cylindrical body termination, and the cylindrical of termination is provided with a circle groove; Be provided with annulus in the groove, annulus exceeds the circumferential surface of termination.The transformer fuel outlet valve of this structure adopts instrument such as common wrench can not realize drawing oil sample and draining the oil, and owing to be provided with annulus in the spool groove, and annulus can slide relative in groove, therefore, and with also can the not back-out spool of fuel outlet valve of present pipe tongs.When needs draw oil sample or drain the oil, adopt special tool to realize.The patent No. that special tool can adopt the inventor to design is that the disclosed a kind of round nut sleeve of ZL201120143482.8 China's utility model patent is realized.The utility model improves through the spool front end to existing technology, the cylindrical body termination that original hexagon nut makes to be provided with in the groove annulus into, has improved the theftproof performance of transformer oil widely.
During practical implementation, the spool front end is provided with step surface, is provided with conical retaining edge between the termination of step surface and spool, and when the oil outlet of spool and valve body sealed, the step surface of spool front end was close on the end face of valve body.
During practical implementation, valve body is provided with outside thread, is provided with tapped sheath and is spun on the valve body.Sheath can prevent that spool and valve body from getting rusty, and plays a protective role.
The beneficial effect of the utility model is: the utility model improves through the spool front end to existing technology; Make original hexagon nut to be provided with in the groove into the cylindrical body termination of annulus; Simple in structure; Easy to process, safe and reliable, can prevent effectively that the lawless person from stealing transformer oil through oil discharging valve.
Description of drawings
Below in conjunction with accompanying drawing and embodiment model utility is further specified.
Fig. 1 is the utility model embodiment's a structural representation.
Fig. 2 is the utility model embodiment's a valve core structure schematic representation.
Among the figure: 1, valve body 2, spool 3, sheath 4, seal ring 11, sampling hole 12, sealed step 21, termination 22, retaining edge 23, groove 24, annulus.
Embodiment
Among Fig. 1 and Fig. 2, transformer two-purpose theft fuel outlet valve comprises valve body 1, spool 2 and sheath 3; Use tapped drain oil in the valve body 1, the wall portion of valve body 1 is provided with sampling hole 11, and the end of spool 2 is provided with seal ring 4; Drain oil end in the valve body 1 is provided with sealed step 12, but in the spool 2 precession sampling holes, after screwing; The seal ring 4 of the end of spool 2 withstands on the drain oil end and is provided with on 12 of the sealed step, and spool 2 front ends are cylindrical body termination 21, is provided with a circle groove 23; Be provided with annulus 24 in the groove 23, annulus 24 exceeds the circumferential surface of termination, and spool 2 front ends are provided with step surface; 21 of the terminations of step surface and spool are provided with conical retaining along 22, and when the oil outlet of spool 2 and valve body 1 sealed, the step surface of spool 2 front ends was close on the end face of valve body 1.Valve body 1 is provided with outside thread, is provided with tapped sheath 3 and is spun on the valve body 1.
The transformer fuel outlet valve of this structure adopts instruments such as common wrench or pipe tongs can not realize drawing oil sample and draining the oil, and when needs draw oil sample or drain the oil, adopts special tool to realize.The utility model improves through the spool front end to existing technology, the cylindrical body termination 21 that original hexagon nut makes to be provided with in the groove 23 annulus 24 into, has improved the theftproof performance of transformer oil widely.
Claims (3)
1. a transformer anti-theft fuel outlet valve comprises valve body and spool, is provided with tapped drain oil in the valve body; The wall portion of valve body is provided with sampling hole, and the end of spool is provided with seal ring, and the drain oil end in the valve body is provided with step; But in the spool precession sampling hole, after screwing, the seal ring of the end of spool withstands on the drain oil end and is provided with on the step surface; It is characterized in that: the spool front end is the cylindrical body termination; The cylindrical of termination is provided with a circle groove, is provided with annulus in the groove, and annulus exceeds the circumferential surface of termination.
2. transformer two-purpose theft fuel outlet valve according to claim 1 is characterized in that the spool front end is provided with step surface, is provided with conical retaining edge between the termination of step surface and spool.
3. transformer two-purpose theft fuel outlet valve according to claim 1 and 2 is characterized in that valve body is provided with outside thread, is provided with tapped sheath and is spun on the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201284153U CN202531867U (en) | 2012-03-30 | 2012-03-30 | Anti-theft oil drain valve for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201284153U CN202531867U (en) | 2012-03-30 | 2012-03-30 | Anti-theft oil drain valve for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531867U true CN202531867U (en) | 2012-11-14 |
Family
ID=47133054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201284153U Expired - Fee Related CN202531867U (en) | 2012-03-30 | 2012-03-30 | Anti-theft oil drain valve for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745804A (en) * | 2013-12-24 | 2014-04-23 | 广东电网公司肇庆供电局 | Transformer insulating oil anti-theft device and insulating oil anti-theft transformer |
-
2012
- 2012-03-30 CN CN2012201284153U patent/CN202531867U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745804A (en) * | 2013-12-24 | 2014-04-23 | 广东电网公司肇庆供电局 | Transformer insulating oil anti-theft device and insulating oil anti-theft transformer |
| CN103745804B (en) * | 2013-12-24 | 2016-02-24 | 广东电网公司肇庆供电局 | Transformer insulation oil anti-theft device and insulating oil antitheft transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20150330 |
|
| EXPY | Termination of patent right or utility model |