CN2860952Y - Oil stealing prevention device for oil filling port of oil tank - Google Patents
Oil stealing prevention device for oil filling port of oil tank Download PDFInfo
- Publication number
- CN2860952Y CN2860952Y CNU2005201399424U CN200520139942U CN2860952Y CN 2860952 Y CN2860952 Y CN 2860952Y CN U2005201399424 U CNU2005201399424 U CN U2005201399424U CN 200520139942 U CN200520139942 U CN 200520139942U CN 2860952 Y CN2860952 Y CN 2860952Y
- Authority
- CN
- China
- Prior art keywords
- valve
- oil
- valve body
- tank filler
- filler opening
- 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
Links
- 230000002265 prevention Effects 0.000 title 1
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 18
- 239000000428 dust Substances 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 6
- 230000003137 locomotive effect Effects 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000002828 fuel tank Substances 0.000 description 7
- 239000000446 fuel Substances 0.000 description 3
- 230000001687 destabilization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
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- Check Valves (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The oil tank oil filler hole oil stealing preventing device is especially suitable for the oil filling part of oil tank in railway diesel locomotive, automobile and tractor, and has the functions of sealing, preventing dust and preventing oil stealing. The utility model comprises a check valve welded at the oil port of the oil tank and a valve opener connected with the oil filling pipe joint, wherein a connecting sleeve of a valve body of the check valve and the valve opener is provided with a quick screwing thread, a valve core of the check valve and an ejector rod of the valve opener are respectively sealed by a conical surface under the extrusion of a spring, when oil is filled, the valve body and the connecting sleeve are screwed, the valve core and the ejector rod are mutually jacked and retreated, the sealing surface is opened, and the oil filling is quick and convenient; after oiling, the valve opener is detached, the one-way valve is closed, sealing is reliable, the valve opener cannot be opened without a special tool, and an oil pipe cannot be inserted even if the valve opener is opened, so that oil stealing can be effectively prevented, and safety is good.
Description
Technical field
The utility model relates to a kind of fuel door of fuel tank, especially for railway diesel locomotive and automobile, trac. etc. with the oil filling port guard against theft oil device on the fuel tank.
Background technology
At present, the vehicle such as beeliner and automobile, trac. generally seal with the oil filling port of fuel tank with plug screw, lock with cover of dust again, this fuel lid is easy to be pried open, just can directly insert fuel tank with oil pipe then steals oil, therefore safety is bad, and this both brought very big loss to the owner, also causes the destabilization of society.
The utility model content
It is reliable that the technical problems to be solved in the utility model provides a kind of sealing, easy to lubricate, prevents that oil plant is stolen, the tank filler opening anti-joyride device that safety is good.
The technical solution of the utility model is: tank filler opening guard against theft oil device comprises the hydraulic fluid port check valve and refuels valve opening machine, the valve body of described hydraulic fluid port check valve and tank filler opening sealed type link into an integrated entity, the valve body bared end has outside thread, check valve spool sealing surface below is provided with compression spring, and the cylinder of valve core sealed cover top extend in the cylindrical cavity of valve body upper end; Described oiling valve opening machine mainly is made of sleeve, movable push rod, compression spring and adapter sleeve, movable push rod is positioned at barrel bore, gapped between the two, under the compression spring extruding, contact and sealing by step surface, adapter sleeve hangs on the boss of the sleeve outside, its inwall has the negative thread that matches with above-mentioned valve body outside thread, and sleeve head stretches in the cavity of valve body upper end, and there is seal ring the junction; Above-mentioned compression spring parameter unanimity, and L
1+ L
2+ δ＜H
1+ H
2, wherein, L
1Be the sealing surface of valve body distance, L to the upper end cavity floor
2Be hole depth in the adapter sleeve front end, δ is a seal ring thickness, H
1Be valve core sealed cover top cylinder height, H
2Be the cylinder height before the movable top rod seal face.
Further scheme is: described check valve valve body is integrally welded by locating bush and tank filler opening; The sealing surface of the sealing surface of described valve body and spool and sleeve and push rod is conical sealing surface; Described valve opening machine adapter sleeve is provided with handle; The connecting thread of check valve valve body and valve opening machine sleeve is the fast advance and retreat screw thread; Check valve valve body lower end is provided with the oiling cushion collar, the cushion collar base seal, and there is the oil groove of going out the side; The check valve port is provided with the rotary type cover of dust; The fixed end of described compression spring is pressed on the jump ring and the gaily decorated basket.
Adopt this anti-joyride device, the joint of oiling valve opening machine rear end and external fuel filler pipe links together, during oiling, as long as valve opening machine and hydraulic fluid port check valve are tightened, push rod in the valve opening machine and the mutual roof pressure of the spool in the check valve retreat, and two place's sealing surfaces are opened simultaneously, oil just successfully enters fuel tank, and under the effect of cushion collar, oil-feed can not fling the fuel tank bottom, in order to avoid cause the fluid muddiness; Because the connecting thread of check valve valve body and valve opening machine adapter sleeve is the fast advance and retreat screw thread, the screw thread that low-angle screws behind general employing multiple screw thread or the straight cutting, fast assembling and disassembling, easy to lubricate, pull down valve opening machine after the oiling, check valve closes extremely immediately, and sealing is reliable, cover cover of dust again, further play protective action.Because check valve has special tool and can not open, also can't insert fuel tank even open the back oil pipe, so stealer can't go smoothly, safety is good.
Description of drawings
Accompanying drawing is the utility model structural representation (fueling state).
The specific embodiment
Consult accompanying drawing, integrally welded by locating bush and tank filler opening that overcoat 5 and interior cover 4 are formed, the inner chamber of cover in check valve valve body 3 is welded on, body cavity is provided with spool 2 and compression spring 12, and the spool epimere stretches into the cylindrical cavity of valve body upper end.The valve opening machine that refuels mainly is made of sleeve 7, movable push rod 6, compression spring 12 and adapter sleeve 8, sleeve head stretches in the cavity of valve body upper end, there is seal ring 11 the end face junction, adapter sleeve hangs on the boss of the sleeve outside, after tightening with the valve body screw thread, movable push rod and spool hold out against separately and retreat, and two place's conical sealing surfaces are opened, and can refuel smoothly.The fixed end of above-mentioned compression spring is pressed on the jump ring 14 and the gaily decorated basket 13, valve body lower end is provided with oiling cushion collar 1, the cushion collar base seal, there is the oil groove of going out 15 side, the adapter sleeve upper end is provided with handle 9, and rotary type cover of dust 10 is housed on the locating bush, and valve opening machine is walked in the recession of refueling, check valve closes dead, rotates cover of dust and covers the check valve port.
Claims (8)
1, a kind of tank filler opening guard against theft oil device, it is characterized in that comprising the hydraulic fluid port check valve and refuel valve opening machine, the valve body of described hydraulic fluid port check valve and tank filler opening sealed type link into an integrated entity, the valve body bared end has outside thread, check valve spool sealing surface below is provided with compression spring, and the cylinder of valve core sealed cover top extend in the cylindrical cavity of valve body upper end; Described oiling valve opening machine mainly is made of sleeve, movable push rod, compression spring and adapter sleeve, movable push rod is positioned at barrel bore, gapped between the two, under the compression spring extruding, contact and sealing by step surface, adapter sleeve hangs on the boss of the sleeve outside, its inwall has the negative thread that matches with above-mentioned valve body outside thread, and sleeve head stretches in the cavity of valve body upper end, and there is seal ring the junction; Above-mentioned compression spring parameter unanimity, and L
1+ L
2+ δ＜H
1+ H
2, wherein, L
1Be the sealing surface of valve body distance, L to the upper end cavity floor
2Be hole depth in the adapter sleeve front end, δ is a seal ring thickness, H
1Be valve core sealed cover top cylinder height, H
2Be the cylinder height before the movable top rod seal face.
2, by the described tank filler opening guard against theft oil of claim 1 device, it is characterized in that described check valve valve body is integrally welded by locating bush and tank filler opening.
3, by the described tank filler opening guard against theft oil of claim 1 device, it is characterized in that the sealing surface of described valve body and spool and the sealing surface of sleeve and push rod are conical sealing surface.
4, by the described tank filler opening guard against theft oil of claim 1 device, it is characterized in that described valve opening machine adapter sleeve is provided with handle.
5, by the described tank filler opening guard against theft oil of claim 1 device, the connecting thread that it is characterized in that check valve valve body and valve opening machine adapter sleeve is the fast advance and retreat screw thread.
6, by the described tank filler opening guard against theft oil of claim 1 device, it is characterized in that check valve valve body lower end is provided with the oiling cushion collar, the cushion collar base seal, there is the oil groove of going out the side.
7, by the described tank filler opening guard against theft oil of claim 1 device, it is characterized in that the check valve port is provided with the rotary type cover of dust.
8, by the described tank filler opening guard against theft oil of claim 1 device, it is characterized in that the fixed end of described compression spring is pressed on the jump ring and the gaily decorated basket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201399424U CN2860952Y (en) | 2005-12-17 | 2005-12-17 | Oil stealing prevention device for oil filling port of oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201399424U CN2860952Y (en) | 2005-12-17 | 2005-12-17 | Oil stealing prevention device for oil filling port of oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2860952Y true CN2860952Y (en) | 2007-01-24 |
Family
ID=37658580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201399424U Expired - Fee Related CN2860952Y (en) | 2005-12-17 | 2005-12-17 | Oil stealing prevention device for oil filling port of oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2860952Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110395108A (en) * | 2019-07-10 | 2019-11-01 | 上海未蓝工业技术有限公司 | A kind of fuel filling connector with anti-theft function |
| CN113266499A (en) * | 2021-06-02 | 2021-08-17 | 北京汽车集团越野车有限公司 | Car check valve and car |
-
2005
- 2005-12-17 CN CNU2005201399424U patent/CN2860952Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110395108A (en) * | 2019-07-10 | 2019-11-01 | 上海未蓝工业技术有限公司 | A kind of fuel filling connector with anti-theft function |
| CN113266499A (en) * | 2021-06-02 | 2021-08-17 | 北京汽车集团越野车有限公司 | Car check valve and car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |