CN202108999U - Transformer anti-theft oil drain valve and special tool - Google Patents

Transformer anti-theft oil drain valve and special tool Download PDF

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Publication number
CN202108999U
CN202108999U CN2011201434851U CN201120143485U CN202108999U CN 202108999 U CN202108999 U CN 202108999U CN 2011201434851 U CN2011201434851 U CN 2011201434851U CN 201120143485 U CN201120143485 U CN 201120143485U CN 202108999 U CN202108999 U CN 202108999U
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CN
China
Prior art keywords
valve
spool
sleeve
screw rod
cylindrical
Prior art date
Application number
CN2011201434851U
Other languages
Chinese (zh)
Inventor
叶仁富
徐阳生
Original Assignee
叶仁富
徐阳生
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 叶仁富, 徐阳生 filed Critical 叶仁富
Priority to CN2011201434851U priority Critical patent/CN202108999U/en
Application granted granted Critical
Publication of CN202108999U publication Critical patent/CN202108999U/en

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Abstract

The utility model discloses a transformer anti-theft oil drain valve and a special tool matched with the oil drain valve. The tail of the valve core of the transformer oil drain valve is manufactured to be a first cylinder equipped with a male thread. The external diameter of the first cylinder is less than the external diameter of the valve core, so that a theft can not loosen the valve core through various wrenches. When the valve core is screwed, the valve core can only be unscrewed by being compressed by the cooperation of a sleeve and a bolt provided by the special tool. Therefore, the anti-theft purpose is realized.

Description

Transformer anti-theft fuel outlet valve and special tool

Technical field

The utility model relates to a kind of distribution transformer antitheft fuel outlet valve, and the special tool that uses this fuel outlet valve also is provided simultaneously, is adapted to be installed on all kinds of power transformers and discharges transformer oil.

Background technique

Use the user of high voltage supply must dispose transformer, distribution transformer is generally oil immersed type, and after distribution transformer moved the regular period, insulating strength will descend, and just need detect and filter transformer insulation oil.Check and filtration transformer insulation oil are emitted in oil tank of transformer, and the fuel outlet valve operated by rotary motion of playback insulating oil is at the low side of transformer housing.And existing fuel outlet valve is made up of valve body, spool and protective cover; The shortcoming of such fuel outlet valve is to use general tool; Like hexagon wrench; Just can it be taken apart fully, cause insulating oil in the transformer stolen and cause transformer to burn easily, bring enormous economic loss to industrial and agricultural production.

The model utility content

The utility model purpose is the shortcoming that exists to existing transformer fuel outlet valve, and a kind of special-purpose fuel outlet valve and the special tool thereof that just can open with special tool is provided.

For realizing above-mentioned purpose, the utility model can be taked following technical proposals:

A kind of transformer anti-theft fuel outlet valve; Comprise the valve body that is connected with fuel tank, be arranged at spool, the valve gap in the valve body and be arranged at drain oil and the oil drain plug on the valve body lower portion tube wall; Between described valve body and the spool through being threaded; It is characterized in that: be provided with first annular groove in the front portion of said spool, be provided with first seal ring in first annular groove; The afterbody of spool is first cylindrical body of external diameter less than spool, and described first cylindrical body is provided with outside thread.

The utility model on the other hand, described drain oil and oil drain plug are provided with the 3rd seal ring through being threaded between said valve body and the oil drain plug.

The utility model on the other hand; Described valve gap comprises the valve gap body, be arranged at first screw rod of valve gap body front end, be arranged at the convexity of valve gap body rearward end; Said first screw flight and valve interior wall screw thread are complementary; The root of this first screw rod is provided with second annular groove, is provided with second seal ring in this second annular groove.

The utility model on the other hand, described valve rear end portion is provided with the 3rd annular groove that is complementary with said valve gap body.

The matching used special tool of a kind of and said transformer anti-theft fuel outlet valve comprises a bolt and a sleeve, and the external diameter of said sleeve front portion is less than the spool external diameter, and the inwall of sleeve is provided with screw thread, and the first cylindrical outside thread of this screw thread and spool afterbody is complementary; Described bolt comprises screw rod and head, and the outside thread of said screw rod and the internal thread of said sleeve are complementary, and the screw rod front portion is provided with second cylindrical body, and this second cylindrical external diameter is less than the external diameter of screw rod; The first cylindrical length summation of the length of said screw rod and spool afterbody is greater than the length of sleeve.

The utility model on the other hand, described sleeve rear end portion is a hexagon.

The utility model on the other hand, the head of described bolt is a hexagon.

The utility model on the other hand, the head of described bolt has been disposed radially a through hole.

The beneficial effect of the utility model is mainly reflected in: simple in structure; Survivability is strong; Can only cooperate the special tool operation during use; Effectively raise the theftproof performance of fuel outlet valve, in the transformation of the production of new transformer and old transformer, all can implement very easily, have significant good effect.

Description of drawings

Fig. 1 is the working section figure of the utility model.

Fig. 2 is the section of structure of the utility model fuel outlet valve.

Fig. 3 is the section of structure of the utility model special tool.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

As shown in Figure 2, the transformer anti-theft fuel outlet valve comprises valve body 1, spool 2, is arranged at drain oil 3, oil drain plug 4, valve gap 9 on the valve body 1 bottom tube wall.Through being threaded, one the 3rd seal ring 41 is set between oil drain plug 4 and valve body 1 between drain oil 3 and the oil drain plug 4; Spin through screw thread between valve body 1 and the spool 2; Establish one first annular groove in the front portion of spool 2; Be provided with one first annular seal ring 22 in this first annular groove, the afterbody of spool 2 is processed into first cylindrical body 25 of external diameter less than spool 2, and this first cylindrical body 25 is provided with outside thread.Valve body 1 rearward end is provided with one the 3rd annular groove 95.Valve gap 9; Comprise valve gap body 91, be arranged at valve gap body 91 front ends first screw rod 92, be arranged at the convexity 93 of valve gap body 91 rearward end; The screw thread of this first screw rod 92 and valve body 1 inner thread are complementary; Its root is provided with second annular groove, is provided with second seal ring 94 in this second annular groove.Valve gap 9 just is complementary with the 3rd annular groove 95 at valve body 1 rear portion.

As shown in Figure 3, the utility model has also disclosed the matching used special tool of a kind of and said transformer anti-theft fuel outlet valve, comprises bolt 6 and sleeve 7.The external diameter of sleeve 7 anterior 71 is less than the external diameter of spool 2, and inwall is provided with internal thread, and the outside thread of this internal thread and spool 2 afterbodys first cylindrical body 25 is complementary; Bolt 6 comprises screw rod 61 and head 62; The outside thread 62 of screw rod 61 is complementary with the internal thread of sleeve 7; Screw rod 61 front portions manufacture second cylindrical body 63; The external diameter of this second cylindrical body 63 is less than the external diameter of screw rod 61, and the length summation of first cylindrical body 25 of the length of screw rod 61 and spool 2 afterbodys is greater than the length of sleeve 7.The rearward end 72 of sleeve 7 is manufactured hexagon, the head 62 of bolt 6 is also manufactured hexagon, certainly, also can the head 62 of bolt 6 be disposed radially a through hole, can play the effect that makes things convenient for knob equally.

Its working principle: as shown in Figure 1, valve body 1 is welded on the oil tank of transformer, with the front end sleeve of the sleeve 7 of special tool on first cylindrical body 25 of spool 2 afterbodys; Through screw thread both are screwed; Then the rearward end precession of bolt 6, up to first cylindrical body 25 that touches spool 2 afterbodys, like this from sleeve 7; To be lockable between first cylindrical body 25 of spool 2 afterbodys and the sleeve 7, can't rotate.With the end precession valve body 1 of spool 2, valve body 1, spool 2 are closely contacted with first annular seal ring 22 realize sealing then, guarantee that the oil in the transformer can not leak.Screw behind the spool 2; Use spanner that the bolt 6 of special tool 8 is outwarded winding with sleeve 7; Like this, can rotate between first cylindrical body 25 of sleeve 7 and spool 2 afterbodys, sleeve 7 is screwed out. at last with valve gap 9 and second seal ring 94 the 3rd annular groove 95 at inlet valve body 1 rear portion of screwing; Realize sealing, to guarantee that spool is 2 not oxidized, to get rusty.In the time of need draining the oil, take off valve gap 9,, stop the rotation after exposing drain oil 3 spool 2 rotations with special tool 8, turn on oil drain plug 4, the transformer oil in the transformer can flow out valve body 1 through drain oil 3.Behind spool 2 precession valve bodies 1, because the space that stays is very little, other instruments can't stretch into operation; Simple use sleeve also can only be the spool of screwing more, also can't screw out spool, and the screw thread model of the inside can't be measured also; Can only lean on special tool just can turn on, thereby play the antitheft effect.

Claims (8)

1. transformer anti-theft fuel outlet valve; Comprise the valve body (1) that is connected with fuel tank, be arranged at spool (2), the valve gap (9) in the valve body (1) and be arranged at drain oil (3) and the oil drain plug (4) on the tube wall of valve body (1) bottom; Between described valve body (1) and the spool (2) through being threaded; It is characterized in that: the front portion at said spool (2) is provided with first annular groove, is provided with first seal ring (22) in first annular groove; The afterbody of spool (2) is first cylindrical body (25) of external diameter less than spool (2), and said first cylindrical body (25) is provided with outside thread.
2. antitheft fuel outlet valve according to claim 1 is characterized in that: described drain oil (3) and said oil drain plug (4) are through being threaded, and said oil drain plug (4) front portion is provided with the 3rd seal ring (41).
3. antitheft fuel outlet valve according to claim 1; It is characterized in that: described valve gap (9) comprises valve gap body (91), be arranged at first screw rod (92) of valve gap body (91) front end, be arranged at the convexity (93) of valve gap body (91) rearward end; The screw thread of said first screw rod (92) and valve body (1) inner thread are complementary; The root of this first screw rod (92) is provided with second annular groove, is provided with second seal ring (94) in this second annular groove.
4. antitheft fuel outlet valve according to claim 3 is characterized in that: described valve body (1) rearward end is provided with the 3rd annular groove (95) that is complementary with said valve gap body (9).
5. one kind requires the matching used special tool of the described antitheft fuel outlet valve of 1-4 with aforesaid right; It is characterized in that: comprise a bolt (6) and a sleeve (7); The external diameter of said sleeve (7) anterior (71) is less than spool (2) external diameter; The inwall of sleeve (7) is provided with screw thread, and the outside thread of first cylindrical body (25) of this screw thread and spool (2) afterbody is complementary; Described bolt (6) comprises screw rod (61) and head (62); The internal thread of the outside thread of said screw rod (61) and said sleeve (7) is complementary; Screw rod (61) front portion is provided with second cylindrical body (63), and the external diameter of this second cylindrical body (63) is less than the external diameter of screw rod (61); The length summation of the length of said screw rod (61) and spool (2) afterbody first cylindrical body (25) is greater than the length of said sleeve (7).
6. special tool according to claim 5 is characterized in that: described sleeve (7) rearward end is a hexagon.
7. special tool according to claim 5 is characterized in that: the head of described bolt (6) is a hexagon.
8. special tool according to claim 5 is characterized in that: the head of described bolt (6) has been disposed radially a through hole.
CN2011201434851U 2011-05-09 2011-05-09 Transformer anti-theft oil drain valve and special tool CN202108999U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201434851U CN202108999U (en) 2011-05-09 2011-05-09 Transformer anti-theft oil drain valve and special tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201434851U CN202108999U (en) 2011-05-09 2011-05-09 Transformer anti-theft oil drain valve and special tool

Publications (1)

Publication Number Publication Date
CN202108999U true CN202108999U (en) 2012-01-11

Family

ID=45434433

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201434851U CN202108999U (en) 2011-05-09 2011-05-09 Transformer anti-theft oil drain valve and special tool

Country Status (1)

Country Link
CN (1) CN202108999U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047427A (en) * 2013-01-08 2013-04-17 苏州宇东暖通技术有限公司 Constant-control valve
CN103542171A (en) * 2013-10-23 2014-01-29 国家电网公司 Special tool for replacing rubber ring of oil drain valve of transformer
CN103680831A (en) * 2013-12-06 2014-03-26 广东电网公司肇庆供电局 Transformer insulating oil anti-theft device and transformer with insulating oil anti-theft function
WO2019043461A3 (en) * 2017-08-31 2019-05-02 Emerson Process Management (Tianjin) Valves Co., Ltd. Mechanical fastening method for valve plug with carbide tip

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047427A (en) * 2013-01-08 2013-04-17 苏州宇东暖通技术有限公司 Constant-control valve
CN103542171A (en) * 2013-10-23 2014-01-29 国家电网公司 Special tool for replacing rubber ring of oil drain valve of transformer
CN103542171B (en) * 2013-10-23 2015-11-18 国家电网公司 Transformer body fuel outlet valve rubber circle changes special tool
CN103680831A (en) * 2013-12-06 2014-03-26 广东电网公司肇庆供电局 Transformer insulating oil anti-theft device and transformer with insulating oil anti-theft function
CN103680831B (en) * 2013-12-06 2016-06-08 广东电网公司肇庆供电局 Insulating oil antitheft transformer
WO2019043461A3 (en) * 2017-08-31 2019-05-02 Emerson Process Management (Tianjin) Valves Co., Ltd. Mechanical fastening method for valve plug with carbide tip

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120111

Termination date: 20130509

C17 Cessation of patent right