CN200961095Y - Automatic oil tank emptying anti-overflow valve - Google Patents
Automatic oil tank emptying anti-overflow valve Download PDFInfo
- Publication number
- CN200961095Y CN200961095Y CN 200520029865 CN200520029865U CN200961095Y CN 200961095 Y CN200961095 Y CN 200961095Y CN 200520029865 CN200520029865 CN 200520029865 CN 200520029865 U CN200520029865 U CN 200520029865U CN 200961095 Y CN200961095 Y CN 200961095Y
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- valve
- block
- chopped
- valve body
- ball float
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Abstract
The utility model belongs to a technical field of light oil loading and unloading operation, in particular to an automatic anti-overflow valve for oil tank unloading which can prevent subterranean tank from spilling made by inaccurate measurement when gas stations unload oil, can avoid danger and can be used to prevent other liquids overflowing from subterranean big tanks too. The utility model comprises a valve body, a floating and compression bar arranged on the valve body, a main valve floating ball and a secondary valve floating ball floating up and down along the floating and compression bar, wherein the main valve floating ball and the secondary valve floating ball can control a main valve plate and a secondary valve plate to close and open on oil unloading channel in the valve body respectively through a main valve link gear and a secondary valve link gear. The utility model has the advantages of dapper structure, small volume, convenient assembly, and is economical and practical, safe and reliable, and suitable for closed type filling.
Description
Technical field:
The utility model belongs to oil loading and unloading operation technical field, relate in particular to a kind of when preventing oil station emptying because of measuring the inaccurate oil spilling that causes sunken oil storage, the tank unloading automatic anti-overflow valve of avoiding Peril Incident to take place, the underground large tank that also can be used for other liquid loads and unloads anti-overflow.
Background technology:
At present, in oil loading and unloading operation technical field, when underground oil tank is carried out emptying, very general because of measuring the inaccurate oil spilling phenomenon of sunken oil storage that causes, overflow a large amount of oil, not only produce very big waste, and oil spilling is easy to have an accident, and exists major safety risks.
Summary of the invention
The purpose of this utility model be to overcome the deficiencies in the prior art and provide a kind of simple in structure, economical and practical, be convenient to install, safe and reliable tank unloading automatic anti-overflow valve.
The purpose of this utility model is achieved in that main valve ball float and the inferior step valve ball float that comprises valve body, is arranged on floating depression bar on the valve body, fluctuates along floating depression bar, and main valve ball float and time step valve ball float are respectively by closed on main valve link gear and time step valve link gear control chopped-off head valve block and the emptying passage of secondary valve block in valve body and open.Described main valve link gear is: ball float quarter butt upper end is suspended on the main valve ball float, the lower end is suspended on the centering block, centering block is connected with locating bush and rotates on valve body, at centering block and locating bush center fixed latch hook is arranged, this latch hook matches with hook on the chopped-off head valve block, the chopped-off head valve block is provided with reduction torsion spring, and chopped-off head valve block one side that is installed on body cavity is provided with flaps, and described time the step valve link gear is identical with the main valve link gear.Have the hole that forms secondary emptying passage at chopped-off head valve block middle part, secondary valve block matches with the hole of this secondary emptying passage.Centering block is connected by screw with locating bush, rotates together on valve body, in centering block end and locating bush end pad and rubber mat is housed respectively.At valve end the valve body joint is installed, the valve body joint is captiveed joint by rivet with valve body, and the junction accompanies a sealing pad.
The utlity model has simple in structure, volume is little, economical and practical, be convenient to install, safe and reliable characteristics, only be applicable to the application of closed type filling.
Description of drawings:
Fig. 1 is a front view of the present utility model.
Fig. 2 is a lateral plan of the present utility model.
Fig. 3 is an A-A cutaway view of the present utility model.
Fig. 4 is a B-B cutaway view of the present utility model.
Fig. 5 is a C-C cutaway view of the present utility model.
Fig. 6 is the hook and the latch hook fit structure scheme drawing 1 of chopped-off head valve block of the present utility model and secondary valve block.
Fig. 7 is the hook and the latch hook fit structure scheme drawing 1 of chopped-off head valve block of the present utility model and secondary valve block.
Fig. 8 is the hook and the latch hook fit structure scheme drawing 1 of chopped-off head valve block of the present utility model and secondary valve block.
The specific embodiment:
Shown in Fig. 1,2,3,4,5,6,7,8, the utility model comprises valve body 1, is arranged on main valve ball float 9 and inferior step valve ball float 2 that the floating depression bar 4 in floating depression bar 4, edge on the valve body 1 fluctuates, and main valve ball float 9 passes through the main valve link gear respectively with time step valve ball float 2 and controls closed and unlatching on chopped-off head valve block 5 and the emptying passage of secondary valve block 6 in valve body with time step valve link gear.
Described main valve link gear is made up of main valve ball float, quarter butt, centering block, locating bush, pad, rubber mat, screw, latch hook.Its structure is: ball float quarter butt 19 upper ends are suspended on the main valve ball float 9, the lower end is suspended on the centering block 13, centering block 13 is connected with locating bush 14 and rotates on valve body, at centering block 13 and locating bush 14 center fixed latch hook 16 is arranged, this latch hook 16 matches with hook on the chopped-off head valve block 5, chopped-off head valve block 5 is provided with the big torsion spring 10 that resets, and chopped-off head valve block 5 one sides that are installed on body cavity are provided with flaps 7.Pad and rubber mat respectively are equipped with in centering block end and locating bush end, play the leak free effect, and latch hook is assemblied in the middle of centering block and the locating bush, with centering block, locating bush interlock.
Described time the step valve link gear is made up of inferior step valve ball float, stock, centering block, locating bush, pad, rubber mat, screw, latch hook, and its version is identical with main valve linkage safety.Ball float stock 20 upper ends are suspended on time step valve ball float 2, the lower end is suspended on the centering block, centering block is connected with locating bush and rotates on valve body, at centering block and locating bush center fixed latch hook is arranged, this latch hook matches with hook on the secondary valve block, and secondary valve block is provided with the little torsion spring 11 that resets, pad and rubber mat respectively are equipped with in centering block end and locating bush end, play the leak free effect, latch hook is assemblied in the middle of centering block and the locating bush, with centering block, locating bush interlock.
Have the hole that forms secondary emptying passage at chopped-off head valve block 5 middle parts, secondary valve block 6 matches with the hole of this secondary emptying passage.Centering block 13 is connected by screw 18 with locating bush 14, rotates together on valve body, in centering block end and locating bush end pad 17 and rubber mat 15 is housed respectively.In valve body 1 end valve body joint 3 is installed, valve body joint 3 is captiveed joint by rivet 23 with valve body 1, and the junction accompanies a sealing pad 12, buffering, spacing, leak free effect when playing the chopped-off head valve block and closing.
Chopped-off head valve block 5 is provided with the big torsion spring 10 that resets, and secondary valve block 6 is provided with the little torsion spring 11 that resets.Floating depression bar 4 is installed on the valve body 1 by rivet 21.
Floating depression bar two ends are fixed on the valve body by rivet, play main valve ball float and the position of time step valve ball float and the effect of sense of motion of limiting.In the valve pocket of valve body 1, the top of chopped-off head valve block 5 is cast with the protruding blade that forms the fluid flame diversion trough, is the part of valve body 1.
Chopped-off head valve block, secondary valve block play the effect that changes valve pocket cross-sectional area and current limliting.The chopped-off head valve block is controlled by big torsion spring, and secondary valve block is controlled by little torsion spring.Secondary valve block, flaps device are on the chopped-off head valve block.Chopped-off head valve block middle part has square hole, forms secondary emptying passage.Valve block is installed on body cavity, by riveting device on valve body.Big torsion spring applies application force, and chopped-off head valve block, secondary valve block are that axle is done clockwise 90 ° of rotations with the rivet; Little torsion spring applies application force, and secondary valve block is that axle is done 90 ° of rotations of anti-clockwise with the spacer.
During work, when the pasta in the oil tank was lower than main valve ball float lower edge end face, main valve ball float, inferior step valve ball float were in the main valve linkage structure respectively, the extreme lower position of inferior step valve link gear, big torsion spring applies application force, and the chopped-off head valve block drives secondary valve block, and valve block integral body is in vertical position.Chopped-off head valve block hook is blocking with main valve link gear latch hook, and secondary valve block hook is blocking with the latch hook of time step valve link gear.Valve channel is unimpeded, is opening, and at this moment, valve body is in toward the state of the interior emptying of oil tank.
When tank unloading, fuel head were increased near main valve ball float upper limb end face, oil mass was in and sets the critical conditions of unloading oil capacity in the oil tank.The main valve link gear is subjected to buoyancy, the main valve ball float rises, drive the centering block rotation by quarter butt, latch hook rotates, and breaks away from chopped-off head valve block hook, fluid continues the impact resistance plate, flaps, chopped-off head valve block are applied application force, and the chopped-off head valve block overcomes the application force of large and small torsion spring, turns to level attitude rapidly around the rivet conter clockwise, fit with sealing pad, the chopped-off head valve block of valve is closed.The delivery duct inner fluid unloads under continuing, and the application force that applies the chopped-off head valve block is constant, and the chopped-off head valve block is kept closure state.At this moment, valve body is in limited current state.
Oil tank unloads oilhole by chopped-off head valve block middle part secondary and continues emptying, 10% when flow is normal discharge.When fuel head was increased to approaching step valve ball float upper limb end face, fuel head reached setting fuel head in the oil tank.Inferior step valve link gear is subjected to buoyancy, and inferior step valve ball float rises, and drives the centering block rotation by stock, and latch hook rotates, and breaks away from secondary valve block hook.Little torsion spring acts on secondary valve block, and secondary valve block turns to level attitude rapidly around the spacer conter clockwise, fit with the chopped-off head valve block, and secondary emptying bore closure, valve body is complete closure state.Tank unloading finishes.The delivery duct inner fluid is discharged in the oil tank under continuing by the preset clearance of secondary valve block and chopped-off head valve block.The delivery duct inner fluid reduces gradually, and the application force that is applied to chopped-off head valve block and secondary valve block reduces gradually.Big torsion spring acts on the chopped-off head valve block, overcomes delivery duct inner fluid application force, drives secondary valve block and turns to vertical position rapidly around the rivet cw, and chopped-off head valve block, secondary valve block are in initial position.When pasta descended, inferior step valve ball float was subjected to buoyancy and reduces, and falls after rise to initial position, and inferior step valve link gear returns to initial position, and latch hook and secondary valve block hook are closed, are blocking.Pasta continues to descend, and chopped-off head valve ball float is subjected to buoyancy and reduces, and falls after rise to initial position, and chopped-off head valve link gear returns to initial position, and latch hook and chopped-off head valve block hook are closed, are blocking.Valve body is opening.
Claims (5)
1, a kind of tank unloading automatic anti-overflow valve comprises valve body (1), is arranged on floating depression bar (4) on the valve body (1), is movably arranged on main valve ball float (9) and time step valve ball float (2) on the floating depression bar (4), and it is levied and is:
A, main valve ball float (9) and time step valve ball float (2) are connected with secondary valve block (6) with chopped-off head valve block (5) with time step valve link gear by the main valve link gear respectively,
B, described main valve link gear is: ball float quarter butt (19) upper end is suspended on the main valve ball float (9), the lower end is suspended on the centering block (1 3), centering block (13) is connected with locating bush (14), and be movably arranged on the valve body, at centering block (13) and locating bush (14) center fixed latch hook (16) is arranged, this latch hook (16) matches with hook on the chopped-off head valve block (5), chopped-off head valve block (5) is provided with reduction torsion spring (10), chopped-off head valve block (5) one sides that are installed on body cavity are provided with flaps (7), described time the step valve link gear is identical with the main valve link gear
C, have the hole of secondary emptying passage at chopped-off head valve block (5) middle part, secondary valve block (6) matches with the hole of this secondary emptying passage.
2, tank unloading automatic anti-overflow valve according to claim 1, it is characterized in that: centering block (13) is movably arranged on the valve body by screw (18) with locating bush (14), in centering block end and locating bush end pad (17) and rubber mat (15) is housed respectively.
3, tank unloading automatic anti-overflow valve according to claim 2 is characterized in that: in valve body (1) end valve body joint (3) is installed, valve body joint (3) is captiveed joint by rivet (23) with valve body (1), and the junction accompanies a sealing pad (12).
4, tank unloading automatic anti-overflow valve according to claim 3 is characterized in that: chopped-off head valve block (5) is provided with the big torsion spring (10) that resets, and secondary valve block (6) is provided with the little torsion spring (11) that resets.
5, a kind of tank unloading automatic anti-overflow valve according to claim 4 is characterized in that: floating depression bar (4) is installed on the valve body (1) by rivet (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520029865 CN200961095Y (en) | 2005-01-24 | 2005-01-24 | Automatic oil tank emptying anti-overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520029865 CN200961095Y (en) | 2005-01-24 | 2005-01-24 | Automatic oil tank emptying anti-overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200961095Y true CN200961095Y (en) | 2007-10-17 |
Family
ID=38797605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520029865 Expired - Fee Related CN200961095Y (en) | 2005-01-24 | 2005-01-24 | Automatic oil tank emptying anti-overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200961095Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044690A (en) * | 2016-07-19 | 2016-10-26 | 苏州佩特罗机械设备有限公司 | Anti-overflow oil vapor recovery device |
-
2005
- 2005-01-24 CN CN 200520029865 patent/CN200961095Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044690A (en) * | 2016-07-19 | 2016-10-26 | 苏州佩特罗机械设备有限公司 | Anti-overflow oil vapor recovery device |
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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 |