CN107461542A - Fuel outlet valve pilferproof closure - Google Patents
Fuel outlet valve pilferproof closure Download PDFInfo
- Publication number
- CN107461542A CN107461542A CN201710652251.1A CN201710652251A CN107461542A CN 107461542 A CN107461542 A CN 107461542A CN 201710652251 A CN201710652251 A CN 201710652251A CN 107461542 A CN107461542 A CN 107461542A
- Authority
- CN
- China
- Prior art keywords
- movable jaw
- outlet valve
- fuel outlet
- driving plate
- pilferproof closure
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 58
- 210000000078 claw Anatomy 0.000 claims abstract description 25
- 230000002427 irreversible effect Effects 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 210000000515 tooth Anatomy 0.000 description 8
- 238000000605 extraction Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 2
- 241000283984 Rodentia Species 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K35/00—Means to prevent accidental or unauthorised actuation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The present invention relates to a kind of fuel outlet valve pilferproof closure, to solve the problems, such as that the transformer oil of box-type substation of the prior art is stolen from fuel outlet valve.Pass through key rotation lock core, lock core drives driving plate to be slided in housing, the movable jaw being connected with driving plate moves between conciliating lock-bit in locking position, and when movable jaw moves towards locking position, the medial surface of the Access Division of claw and end flange is engaged by clamping, and prevents housing from departing from fuel outlet valve.When needing to dismantle pilferproof closure, rotate backward lock core, lock core drives movable jaw towards solution lock-bit motion through driving plate, realize that the unblock of pilferproof closure and fuel outlet valve departs from, due to being that self-locking coordinates between lock core and driving plate, so when being inserted without key, worm rack mechanism is in self-locking state, pilferproof closure can not be removed, theft personnel can not realize the unlatching of pilferproof closure by being directly separated movable jaw.
Description
Technical field
The present invention relates to a kind of fuel outlet valve pilferproof closure.
Background technology
Box-type substation, abbreviation case become, and are called preassembled transformer station or prepackage type electric substation.It is a kind of high-voltage switch gear that case, which becomes,
Equipment, distribution transformer and low-voltage distribution equipment are lined up that integral prefabrication is indoor, outdoor close-coupled by certain connection plan
Controller switching equipment, i.e., the functions such as high powered, transformer pressure-reducing, low-voltage distribution are organically combined, it is anti-installed in one
Tide, antirust, dust-proof, protection against rodents, fire prevention, in antitheft, heat-insulated, totally-enclosed, moveable steel-structure box body.As Authorization Notice No. is
CN201813088U, the applying date disclose a kind of preassembled transformer station for the Chinese patent document on October 13rd, 2010, including
Shell, high-tension apparatus, low-voltage equipment and transformer, the HV Terminal and low-voltage terminal of the transformer are arranged on the transformer
On the transformer side plate of the high-tension apparatus and the low-voltage equipment, the HV Terminal and the low-voltage terminal pass through institute
The side wall for stating hyperbaric chamber and the low-pressure chamber electrically connects with the high-tension apparatus, the low-voltage equipment.Due to transformer station high-voltage side bus mistake
Cheng Zhonghui produces the impurity of pollution transformer oil, so needing to regularly replace transformer oil to keep transformer to have preferable work
Make state, the bottom of the side plate of the transformer is provided with fuel outlet, and fuel outlet is provided with the opening/closing work of draining the oil of control fuel outlet
Door, impure transformer oil are discharged from fuel outlet.
Fuel Bleed Valve includes fuel outlet valve, and the fuel outlet valve is respectively equipped with adpting flange, adpting flange at the both ends that it is flowed to
Including the interior end flanges for being fixedly connected with fuel outlet, relative with interior end flanges is end flange, in the end flange
The plate cover plate for closing fuel outlet valve is covered with, the cover plate is bolted with adpting flange.When needing oil extraction,
Valve hand wheel of draining the oil is turned on after unclamping cover plate, fuel outlet valve is closed after the completion of oil extraction, then cover plate is installed in end flange.But
Thief can turn on cover plate to steal transformer oil during actual use, and the transformer for lacking transformer oil can be due to dissipating
Heat problem triggers serious accident of power supply.
The content of the invention
It is an object of the invention to provide a kind of fuel outlet valve pilferproof closure, to solve the change of box-type substation of the prior art
Depressor oil from fuel outlet valve it is stolen the problem of.
To solve the above problems, the box-type substation in the present invention adopts the following technical scheme that：Fuel outlet valve pilferproof closure includes
For covering the housing being located in the end flange of fuel outlet valve and the claw being arranged on housing, the claw, which has, to be used to be hooked into
Access Division on the medial surface of the end flange of fuel outlet valve, the claw include the movable jaw being movably arranged on housing, institute
Stating movable jaw has the locking position being hooked on the medial surface of the end flange and the unblock separated with the end flange
Position, the housing is interior to be provided with the irreversible worm rack machine for being used for driving the movable jaw to be moved between locking position and solution lock-bit
Structure, the irreversible worm rackwork include outer peripheral face and are provided with the lock core of helical tooth and the driving plate as rack, the driving
Plate is connected with the movable jaw, and lock core is provided with the keyhole for key insertion, and the lock core and driving plate are self-locking
Coordinate to stop that irreversible worm rackwork drives movable jaw to be moved to solution lock-bit when being inserted without key.
The driving plate is slidably arranged in housing to drive movable jaw to move, the axis direction of the lock core parallel to
The glide direction of driving plate.
The housing includes bottom plate and builds the top plate being located on bottom plate, and the top-side of the bottom plate, which is provided with, supplies driving plate
The sliding groove of slip, the top plate lid are located on sliding groove.
The movable jaw is to be articulated and connected to live to drive when driving plate is slided with driving plate, movable jaw and housing
Dynamic claw is swung around housing.
The both ends of the corresponding sliding groove of the bottom plate are provided with the gap for being used for accommodating movable jaw, and movable jaw, which is provided with, to be used
In the jointed shaft being hinged with bottom plate, jointed shaft activity is plugged in movable jaw, and the bottom plate is provided with for jointed shaft insertion
Hinge hole, the side wall that the hinge hole is vertically set on sliding groove extend the part of sliding groove.
Spring of the top pressure in the be hinged shaft end is provided with the hinge hole.
The driving plate is arranged on the both sides of lock core.
The lock core is provided with two sections of oppositely oriented helical tooths to drive the driving plate of both sides opposite or move toward one another.
The housing is in cuboid, and movable jaw is separately positioned on the relative side of cuboid, another phase of cuboid
To side on be respectively equipped with the limiting plate for extending housing to coordinate with the side block of end flange.
The stem for being used for coordinating with key rotation stop is provided with the keyhole, the stem is polygon prism.
The beneficial effects of the invention are as follows：By key rotation lock core, lock core drives driving plate to be slided in housing, with driving
The movable jaw of plate connection moves between conciliating lock-bit in locking position, the clamping of claw when movable jaw moves towards locking position
The medial surface of portion and end flange is engaged by clamping, and prevents housing from departing from fuel outlet valve.When needing to dismantle pilferproof closure, lock is rotated backward
Core, lock core drive movable jaw to be moved towards solution lock-bit through driving plate, realize that the unblock of pilferproof closure and fuel outlet valve departs from, due to
Coordinate between lock core and driving plate for self-locking, so when being inserted without key, worm rack mechanism is in self-locking state, Wu Faqu
Lower pilferproof closure, theft personnel can not realize the unlatching of pilferproof closure by being directly separated movable jaw.
Brief description of the drawings
Fig. 1 is the front view of one embodiment of the fuel outlet valve pilferproof closure in the present invention；
Fig. 2 is Fig. 1 along the profile at A-A；
Fig. 3 removes the front view of top plate for the fuel outlet valve pilferproof closure in the present invention；
Fig. 4 is the front view that the bottom plate of the fuel outlet valve pilferproof closure in the present invention and limiting plate are assembled together；
Fig. 5 is Fig. 4 left view；
Fig. 6 is Fig. 4 top view；
Fig. 7 is the claw of fuel outlet valve pilferproof closure and the assembling front view of jointed shaft in the present invention；
Fig. 8 is Fig. 7 left view；
Fig. 9 is Fig. 8 along the sectional view at B-B；
Figure 10 is the front view of the castellated plates of the fuel outlet valve pilferproof closure in the present invention；
Figure 11 is Figure 10 left view；
Figure 12 is the front view of the articulated elements of the fuel outlet valve pilferproof closure in the present invention；
Figure 13 is the schematic diagram of the top plate of the fuel outlet valve pilferproof closure in the present invention；
Figure 14 is Figure 13 left view；
Figure 15 is Figure 13 top view.
In accompanying drawing, 1- limiting plates, 2- bottom plates, 21- hinge holes, 22- screwed holes, 23- bottom plate grooves, 24- sliding grooves, 3- tops
Plate, 31- top plate projections, 32- arcs auxiliary section, 33- top plate grooves, 34- mounting holes, 4- claws, 42- receiving holes, 43- clampings
Portion, 44- springs, 5- driving plates, 51- hinged ears, 52- driving plate helical teeth, 6- bearings, 7- lock cores, 71- stems, 72- keyholes,
8- articulated elements, 81- articulated elements through holes, 9- jointed shafts.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment of box-type substation in the present invention, as shown in figures 1-15, fuel outlet valve pilferproof closure include being used to cover
The housing being located in the end flange of fuel outlet valve and the claw being arranged on housing, the claw, which has, to be used to be hooked into fuel outlet valve
End flange medial surface on Access Division 43, the claw includes being movably arranged on movable jaw 4 on housing, the work
Dynamic claw 4 has the locking position being hooked on the medial surface of the end flange and the solution lock-bit separated with the end flange,
The irreversible worm rack machine for being used for driving the movable jaw 4 to be moved between locking position and solution lock-bit is provided with the housing
Structure, the irreversible worm rackwork include outer peripheral face and are provided with the lock core 7 of helical tooth and the driving plate as rack, the driving
Plate is connected with the movable jaw, and lock core 7 is provided with the keyhole 72 for key insertion, and the lock core 7 is with driving plate
Self-locking coordinates to stop that irreversible worm rackwork drives movable jaw to be moved to solution lock-bit when being inserted without key.
In the present embodiment, the irreversible worm rackwork include being slidably arranged in driving plate 5 on housing and with driving
The lock core 7 that the engagement of plate 5 coordinates, the driving plate 5 coordinate with the self-locking of lock core 7, the self-locking when not having key insertion in keyhole 72
Worm rack mechanism is reversed locking, and movable jaw can not be driven to be moved to solution lock-bit, drive driving plate 5 to exist when lock core 7 rotates
Slided on housing, the driving plate 5 is connected with one end of movable jaw, and the slip of driving plate 5 drives movable jaw in its locking
Moved between conciliating lock-bit position.Helical tooth is machined with the outer peripheral face of the lock core 7, the driving plate 5 is provided with and helical tooth
Engage the driving plate helical teeth coordinated.Lock core 7 drives driving plate 5 to slide after rotating, so as to drive movable jaw to move.The lock core
7 glide direction for being axially parallel to driving plate 5, the worm rack mechanism can only drive driving plate by lock core 7, work as driving
Plate can not drive lock core 7 to rotate and be locked out when sliding, so the motion of movable jaw can only be realized by rotating lock core 7, when
During movable jaw active movement, driving plate 5 is locked out, and movable jaw can not be opened, and realizes antitheft purpose.
In the present embodiment, the cross section of the end flange of fuel outlet valve is rectangular, and the housing is the end flange with rectangle
Adaptable rectangular slab, the housing include bottom plate 2 and top plate 3, and the bottom plate 2 is provided with the slip slided for driving plate 5
Groove 24, the lid of top plate 3 are located on sliding groove 24, and the side of the dorsal glide groove 24 of bottom plate 2 is sealing surface, and bottom plate 2 is by close
The end face seal of front cover and end flange coordinates, in other embodiments, bottom plate 2 can also the lid of non-tight be located at end flange
On.A movable jaw 4 is respectively equipped with the bottom plate 2 on relative side, extension is respectively equipped with another relative side
Go out the limiting plate 1 that housing is coordinated with the side block with end flange.The middle part of the movable jaw 4 is be hinged with bottom plate 2, activity
One end towards fuel outlet valve of claw 4 is provided with the Access Division 43 with being engaged by clamping on the medial surface of the end flange of fuel outlet valve, living
Dynamic claw 4 departs from fuel outlet valve by the end flange clamping of Access Division 43 and fuel outlet valve with block housing.Movable jaw 4 is backwards
The end of fuel outlet valve is hingedly connected with built-in driving plate 5 in the housing, and the driving plate 5 is slidably arranged in housing to drive
Plate 5 slide when drive movable jaw 4 around housing hinge swing so that be oppositely arranged 4 move toward one another of movable jaw when with outer hold-carrying
Movable jaw 4 departs from end flange when blue block coordinates, moved opposite to each other.In other embodiments：Active card on each side
The quantity of pawl 4 is increased and decreased according to demand；The movable jaw 4 and the connection that driving plate 5 can also be non-articulated, such as active card
Pawl 4 is integral type with driving plate 5, and the direction of motion of movable jaw 4 is transported with the glide direction of driving plate 5 along the radial direction of fuel outlet valve
It is dynamic；The movable jaw 4 is disposed on the side of bottom plate 2；Cover plate is covered with the end flange, pilferproof closure lid is located at
On cover plate with prevent personnel dismantle cover plate.
In the present embodiment, the movable jaw 4 is articulated and connected with driving plate 5 by articulated elements 8, and the articulated elements 8 is cut
Face is in kidney ellipsoid, and the round end at both ends is provided with axially in parallel, the drive of articulated elements through hole 81 and the articulated elements through hole 81 at both ends
One end of dynamic plate 5 is provided with spaced apart hinged ear 51, and the articulated elements 8 is articulated and connected with hinged ear 51, the movable jaw 4
The accommodating chamber for the end for being used to accommodate articulated elements 8 is provided with, the end of articulated elements 8 is inserted into accommodating chamber cuts with scissors with movable jaw 4
Connect in succession.
In the present embodiment, the lock core 7 and driving plate 5 it is built-in in the housing, one end of lock core 7 be provided with keyhole 72 with
Lock core 7 is rotated when inserting key, locally have on the inner peripheral surface of the keyhole 72 four along its axial guide groove with key
Raised be oriented to of the outer peripheral face of spoon coordinates, and four rib stems 71, the inner circumferential of the four ribs stem 71 and key are provided with keyhole 72
Face formed rotation stop coordinate with when rotating key key rotate with movable lock core 7.Four rib stems 71 can also in other embodiments
Other are replaced with to be capable of the polygon-prism of rotation stop cooperation or there is the cylinder of keyway.The driving plate 5 be arranged on bottom plate 2 with
Between top plate 3, bottom plate 2 is provided with the sliding groove 24 slided for driving plate 5, and the top plate 3 covers the sliding groove 24 for being located at bottom plate 2
On, top plate 3 is provided with the through hole for key insertion, is provided with two driving plates 5 in the present embodiment and driving plate 5 is distributed in lock core 7
Both sides, the side walls of the side of the remote helical teeth of the driving plate 5 and sliding groove 24, which are oriented to, to be coordinated, the court of the top plate 3
The top plate projection 31 being bonded with the bottom wall of sliding groove 24 is provided with to the side of bottom plate 2 to be located on sliding groove 24 to cover in top plate 3
Make the flush of housing afterwards.In the present embodiment, the top plate 3 is connected by screw with bottom plate 2, and the top plate of the top plate 3 is convex
Block 31 is provided with the mounting hole 34 passed through for screw, and the bottom wall of sliding groove 24 is provided with the screwed hole 22 with screw fit.At other
In embodiment, the hole wall of the mounting hole 34 is provided with the internal thread with screw fit.In other embodiments, the driving plate
5 can also be arranged on the same side of lock core 7.
The movable jaw 4 is flat board, and a side of flat board is provided with the extension perpendicular to flat board, the extension
Access Division 43 is formed, the side that rotation direction is hinged parallel to it of the movable jaw 4 is provided with jointed shaft 9, movable jaw 4
It is articulated and connected by jointed shaft 9 and bottom plate 2, bottom plate 2, which is provided with, is used to accommodating the hinge hole 21 of jointed shaft 9, on the bottom plate 2
The both ends of sliding groove 24 are provided with the gap to contract, and movable jaw 4 is arranged in gap, and the hinge hole 21 is arranged on slip
In the side wall for the bottom plate 2 that the side wall of groove 24 is extended.In the present embodiment, the movable jaw 4, which is provided with, to be used to accommodate jointed shaft 9
Insertion receiving hole 42, it is described accommodate sky in be provided with two jointed shafts 9, be provided with spring 44 between jointed shaft 9.Movable jaw 4
When being assembled on bottom plate 2, jointed shaft 9 is compressed in receiving hole 42, when receiving hole 42 and coaxial hinge hole 21, jointed shaft 9
Being articulated and connected for movable jaw 4 and bottom plate 2 is realized in ejection.
One end of the remote Access Division 43 of the movable jaw 4 to be hinged the seamed edge of rotational plane perpendicular to it be circular arc
Shape, make movable jaw 4 and top plate 3 when movable jaw 4 and bottom plate 2 are be hinged to be rotated non-interference, the top plate 3 and movable jaw 4
Corresponding side, which has, to be extended towards movable jaw 4 and closes the arc auxiliary section coordinated with the circular arc seamed edge of movable jaw 4
32, arc auxiliary section 32 is used to prevent debris from entering in housing.
When needing to cover pilferproof closure, keyhole 72 is inserted a key into, key turns band movable lock core 7 rotates, and lock core 7 rotates
The driving plate 5 of drive both sides slide in opposition in sliding groove 24, so as to pull movable jaw 4 relative to housing into rotation, active card
Pawl 4 is opposite and goes, and pilferproof closure lid is located in end flange, rotates backward key, movable jaw 4 goes in the same direction to be fastened on and drained the oil
In the end flange of valve, movable jaw 4 forms block with end flange and coordinated, and prevents pilferproof closure from departing from fuel outlet valve, pulls out key
Afterwards, if theft personnel force separation movable jaw 4, ratchet 10 acts on driving plate 5, and movable jaw 4 can not move, so as to
Realize antitheft purpose.When needing oil extraction, because key and ratchet 10 link, after key insertion and lock core 7 is rotated, ratchet 10 solves
Lock, lock core 7 drive driving plate 5 to make movable jaw 4 away from end flange, realize that movable jaw 4 is opposite and row can take down it is antitheft
Lid, carry out oil extraction operation.When needing to cover pilferproof closure, keyhole is inserted a key into, key turns band movable lock core 7 is rotated, locked
The driving plate 5 of the rotation drive of core 7 both sides slide in opposition in sliding groove, so as to pull claw relative to housing into rotation, claw phase
Carry on the back and go, pilferproof closure lid is located on oil-out, rotate backward key, claw, which goes in the same direction, is fastened on the end flange of fuel outlet valve
On, claw forms block with end flange and coordinated, and prevents pilferproof closure from departing from fuel outlet valve, after pulling out key, if theft personnel are strong
System separation claw, driving plate 5 can not drive lock core 7 to rotate, and claw also can not just move, so as to realize antitheft purpose.Work as needs
During oil extraction, after key insertion and lock core 7 is rotated, lock core 7 drives driving plate 5 claw is realized that claw is opposite away from end flange
And row can take down pilferproof closure, oil extraction operation is carried out.
In other embodiments, a stationary jaw and one are respectively equipped with the relative side on the housing of cuboid
Individual movable jaw 4, another relative side are provided with limiting plate 1, by a movable jaw 4 its locking position conciliate lock-bit it
Between motion i.e. can be achieved anti-theft effect.
The embodiment two of fuel outlet valve pilferproof closure in the present invention, the difference of embodiment two and embodiment one are：Fuel outlet valve
End flange be circle, the housing is the circle adaptable with the shape of end flange, now, on housing is not provided with spacing
Plate 1, only more than two claws need to be set.
Claims (10)
1. fuel outlet valve pilferproof closure, it is characterised in that：Including for covering the housing being located in the end flange of fuel outlet valve and being arranged on
Claw on housing, the claw have the Access Division on the medial surface for the end flange for being used for being hooked into fuel outlet valve, the card
Pawl includes the movable jaw being movably arranged on housing, and the movable jaw, which has, to be hooked on the medial surface of the end flange
Locking position and the solution lock-bit that is separated with the end flange, be provided with the housing and be used to drive the movable jaw in locking
The irreversible worm rackwork moved between position and solution lock-bit, the irreversible worm rackwork are provided with helical tooth including outer peripheral face
Lock core and driving plate as rack, the driving plate be connected with the movable jaw, lock core is provided with and inserted for key
The keyhole entered, the lock core are that self-locking coordinates to stop that irreversible worm rackwork drives when being inserted without key with driving plate
Movable jaw moves to solution lock-bit.
2. fuel outlet valve pilferproof closure according to claim 1, it is characterised in that：The driving plate be slidably arranged in housing with
Drive movable jaw motion, the glide direction of the axis direction of the lock core parallel to driving plate.
3. fuel outlet valve pilferproof closure according to claim 2, it is characterised in that：The housing includes bottom plate and lid is located at bottom plate
On top plate, the top-side of the bottom plate is provided with the sliding groove slided for driving plate, and the top plate lid is located on sliding groove.
4. fuel outlet valve pilferproof closure according to claim 3, it is characterised in that：The movable jaw and driving plate, active card
Pawl is to be articulated and connected to drive movable jaw to be swung around housing when driving plate is slided with housing.
5. fuel outlet valve pilferproof closure according to claim 4, it is characterised in that：The both ends of the corresponding sliding groove of the bottom plate are set
There is the gap for accommodating movable jaw, movable jaw is provided with the jointed shaft for being used for being hinged with bottom plate, and jointed shaft activity plugs
In movable jaw, the bottom plate is provided with the hinge hole for jointed shaft insertion, and the hinge hole is vertically set on sliding groove
Side wall extends the part of sliding groove.
6. fuel outlet valve pilferproof closure according to claim 5, it is characterised in that：Top pressure is provided with the hinge hole in the hinge
The spring of spindle end.
7. fuel outlet valve pilferproof closure according to claim 2, it is characterised in that：The driving plate is arranged on the both sides of lock core.
8. fuel outlet valve pilferproof closure according to claim 7, it is characterised in that：The lock core be provided with two sections it is oppositely oriented
Helical tooth is to drive the driving plate of both sides opposite or move toward one another.
9. fuel outlet valve pilferproof closure according to claim 1, it is characterised in that：The housing is in cuboid, and movable jaw divides
Be not arranged on the relative side of cuboid, be respectively equipped with another relative side of cuboid extend housing with outer end
The limiting plate that the side block of flange coordinates.
10. fuel outlet valve pilferproof closure according to claim 1, it is characterised in that：It is provided with and is used for and key in the keyhole
The stem that rotation stop coordinates, the stem is polygon prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710652251.1A CN107461542B (en) | 2017-08-02 | 2017-08-02 | Anti-theft cover for oil drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710652251.1A CN107461542B (en) | 2017-08-02 | 2017-08-02 | Anti-theft cover for oil drain valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107461542A true CN107461542A (en) | 2017-12-12 |
| CN107461542B CN107461542B (en) | 2024-02-20 |
Family
ID=60548217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710652251.1A Active CN107461542B (en) | 2017-08-02 | 2017-08-02 | Anti-theft cover for oil drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107461542B (en) |
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|---|---|---|---|---|
| CN2324183Y (en) * | 1997-11-20 | 1999-06-16 | 关春阳 | Antitheft device for iron cover of manhole |
| CN200999347Y (en) * | 2005-08-19 | 2008-01-02 | 李月祥 | Mechanical bidirectional locking anti-theft well cover |
| CN201080742Y (en) * | 2007-04-17 | 2008-07-02 | 康雄雄 | Oil well anti-stealing well cover lock |
| CN101575922A (en) * | 2009-02-08 | 2009-11-11 | 徐明达 | Antitheft door lock |
| JP2012097503A (en) * | 2010-11-04 | 2012-05-24 | Mitsuba Corp | Linear driving device |
| EP2327581A4 (en) * | 2008-09-25 | 2012-06-13 | Honda Motor Co Ltd | Lockable cap for fuel tank |
| CN203222824U (en) * | 2013-04-03 | 2013-10-02 | 廖险峰 | Safe anti-theft manhole cover |
| CN205793761U (en) * | 2015-12-31 | 2016-12-07 | 骅星科技发展有限公司 | Fixator for electronic equipment |
| CN106639689A (en) * | 2016-12-30 | 2017-05-10 | 杭州人人集团有限公司 | Fuel tank cap lock for car |
| CN207093909U (en) * | 2017-08-02 | 2018-03-13 | 河南森源电气股份有限公司 | A kind of fuel outlet valve pilferproof closure |
-
2017
- 2017-08-02 CN CN201710652251.1A patent/CN107461542B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2324183Y (en) * | 1997-11-20 | 1999-06-16 | 关春阳 | Antitheft device for iron cover of manhole |
| CN200999347Y (en) * | 2005-08-19 | 2008-01-02 | 李月祥 | Mechanical bidirectional locking anti-theft well cover |
| CN201080742Y (en) * | 2007-04-17 | 2008-07-02 | 康雄雄 | Oil well anti-stealing well cover lock |
| EP2327581A4 (en) * | 2008-09-25 | 2012-06-13 | Honda Motor Co Ltd | Lockable cap for fuel tank |
| CN101575922A (en) * | 2009-02-08 | 2009-11-11 | 徐明达 | Antitheft door lock |
| JP2012097503A (en) * | 2010-11-04 | 2012-05-24 | Mitsuba Corp | Linear driving device |
| CN203222824U (en) * | 2013-04-03 | 2013-10-02 | 廖险峰 | Safe anti-theft manhole cover |
| CN205793761U (en) * | 2015-12-31 | 2016-12-07 | 骅星科技发展有限公司 | Fixator for electronic equipment |
| CN106639689A (en) * | 2016-12-30 | 2017-05-10 | 杭州人人集团有限公司 | Fuel tank cap lock for car |
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Non-Patent Citations (1)
| Title |
|---|
| 田椿年: "塑料注射成型模具结构设计图册", 轻工业出版社, pages: 54 * |
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| Publication number | Publication date |
|---|---|
| CN107461542B (en) | 2024-02-20 |
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