CN103148297A - Connector for connecting loading arm with tank truck - Google Patents
Connector for connecting loading arm with tank truck Download PDFInfo
- Publication number
- CN103148297A CN103148297A CN2013100673007A CN201310067300A CN103148297A CN 103148297 A CN103148297 A CN 103148297A CN 2013100673007 A CN2013100673007 A CN 2013100673007A CN 201310067300 A CN201310067300 A CN 201310067300A CN 103148297 A CN103148297 A CN 103148297A
- Authority
- CN
- China
- Prior art keywords
- arc
- connector
- tank car
- claw
- rotating disk
- 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.)
- Pending
Links
Images
Abstract
The invention discloses a connector for connecting a loading arm with a tank truck. The connector comprises a base, at least three shaft lugs uniformly distributed and fixed along the outer edge of the base, and a rotary plate rotationally connected with the base, wherein each shaft lug is hinged with a clamping jaw used for connecting the base with the connector end of the tank truck; arc-shaped grooves corresponding to the clamping jaws in number are formed in the rotary plate; the center of each arc-shaped groove deviates from that of the rotary plate; and the lower end of each clamping jaw is positioned in the corresponding arc-shaped groove. According to the connector provided with the rotary plate, the clamping jaws can rotate relative to the shaft lugs by rotating the rotary plate only, and the loading arm is stably connected with the tank truck, so that the automation level in the working process is high, the working process is safe and reliable, and the service life of each clamping jaw is prolonged.
Description
Technical field
The present invention relates to a kind of connector for connecting oil filling riser and tank car, particularly a kind of the need pulled claw with hand, can make a plurality of claws synchronously with respect to each self-corresponding axle ear rotating opening or tightly be locked on the tank car interface end as long as rotate rotating disk, realize the stable connector for connection oil filling riser and tank car that is connected of oil filling riser and tank car.
Background technique
The larger media of viscosity such as loading-unloading vehicle conveying bitumen, oil are generally selected bottom loading and unloading oil filling riser and are adopted the bottom unloading way.Loading and unloading oil filling riser in bottom is comprised of parts such as pipe connecting flange, outer arm, swivel joint, overhanging arm (metallic hose), the connector that is used for connection oil filling riser and tank car and balance sysmtes.Oil filling riser is interconnected by 5 swivel joints, to realize the three dimensional motion of arm, can guarantee correctly to dock with tank car in any position of the enveloping space of stipulating.Whole operating process is all carried out bottom tank car, and limited space requires the docking operation of oil filling riser and tank car conveniently, reliably.
Existing technological scheme is: for fixing along the equally distributed axle ear in pedestal outer on the pedestal of the connector that connects oil filling riser and tank car, the claw number is corresponding identical with axle ear number, and each claw is hinged with corresponding axle ear respectively, can rotate relative to the axle ear.The claw lower end is built and is integrated and arranges tapped hole, can be connected with pedestal by a screw rod.At first rotate with hand during work and unscrew screw rod, pull claw with hand and outwards rotate relative to the axle ear, mobile device in succession to the interface end of institute's cans picking car, snaps into each claw on the interface end of institute's cans picking car respectively, then rotates and tighten screw rod, makes claw and pedestal keep fixing.Take off joint and also will pull claw with hand.There is following defective in the prior art scheme:
1, claw structure is elongated, and insufficient strength is pulled suffered stress and easily ruptured when large;
2, unload at every turn and all need with the hand rotating screw bolt, pull claw, complex operation, working efficiency is low;
3, be used for connecting oil filling riser, be connected the claw of connector with tank car unreliable with being connected of tank car interface end, may become flexible when the situation such as external force vibrations is arranged, and working procedure stability is low;
4, on claw, residual liquid is arranged after entrucking, may touch during people's handling, Security is low.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of the need to pull claw with hand, as long as rotating rotating disk can make a plurality of claw locking phases for each self-corresponding axle ear rotating opening or tightly be locked on the tank car interface end, realize the stable connector that is connected of oil filling riser and tank car, make that working procedure is safe and reliable, claw raising in working life.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of connector for connecting oil filling riser and tank car, comprise the pedestal that is connected on the oil filling riser overhanging arm and at least three axle ears that evenly distribute and fix along edge, pedestal outer, each axle ear respectively hinged one be used for claw that pedestal is connected with the tank car interface end, described connector for connecting oil filling riser and tank car also comprises and is set in the rotating disk that is rotationally connected with pedestal on pedestal, the arc-shaped slot corresponding with the claw number is set on described rotating disk, center of turntable is departed from the center of circle of this arc-shaped slot, and described each claw lower end lays respectively in corresponding arc-shaped slot.
As a further improvement on the present invention, described arc-shaped slot is set and has safe flex point.The straight line at the arc-shaped slot center of circle and center of turntable place and arc-shaped slot intersect, and this intersection location is the safe flex point of arc-shaped slot.
As a kind of optimal way, for being rotationally connected of turntable of the present invention and pedestal, preferably described rotating disk with pedestal contacted surface on the first annular groove is set, described pedestal with rotating disk contacted surface on the second annular groove is set, the first annular groove and the second annular groove are combined into a steel ball passage, do not arrange at rotating disk on the outer surface at arc-shaped slot place through hole is set, described through hole is communicated with rotating disk outer surface and steel ball passage, steel ball is inserted the steel ball passage from described through hole, after filling up steel ball in the steel ball passage, the through hole sealing.
As a kind of optimal way, described through hole is preferably tapped through hole, with the described tapped through hole of plug screw sealing.
As a kind of optimal way, described claw upper end is preferably barb-shaped.
As a kind of optimal way, for described each claw respectively with the connection of corresponding axle ear, preferably connect by bearing pin.
As a further improvement on the present invention, on contacted of described pedestal and tank car interface end, annular recess is set, in described annular recess, sealing gasket is set.
As a further improvement on the present invention, handle is set on rotating disk.
As a kind of optimal way, described claw number preferably arranges three, and described axle ear is identical with the claw number with the number of arc-shaped slot.
The invention has the beneficial effects as follows: the connector that this rotating disk is set does not need hand to pull claw when connecting tank car, and the working automation degree is high, process safety reliable, claw improves working life.
Description of drawings
Fig. 1 is the structural drawing of the connector for connecting oil filling riser and tank car of the present invention;
Fig. 2 is the sectional view of rotating disk shown in Fig. 1;
Fig. 3 is the plan view of rotating disk shown in Fig. 2.
In figure: 1, bearing pin, 2, claw, 3, the axle ear, 4, pedestal, 5, annular groove, 6, sealing gasket, 7, steel ball passage, 8, steel ball, 9, plug screw, 10, arc-shaped slot, 11, safe flex point, 12, rotating disk, 13, tank car interface end, 14, oil filling riser overhanging arm, the 15, first annular groove, 16, the rotating disk handle.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As shown in Figure 1, connector for connecting oil filling riser and tank car of the present invention, the axle ear 3 that comprises the pedestal 4 that is connected on oil filling riser overhanging arm 14, evenly distributes along pedestal 4 edges, outer and fix, be set in the rotating disk 12 that is rotationally connected with pedestal 4 on pedestal 4, the number of axle ear 3 is at least three, each axle ear 3 respectively hinged one be used for claw 2 that pedestal 4 is connected with tank car interface end 13.
As shown in Figure 2, rotating disk 12 with pedestal 4 contacted surface on the first annular groove 15 is set, described pedestal 4 with rotating disk 12 contacted surface on the second annular groove is set, as shown in Figure 1, the first annular groove 15 and the second annular groove are combined into a steel ball passage 7, the interior steel ball 8 that arranges of steel ball passage 7.
As shown in Figure 3, the arc-shaped slot 10 corresponding with claw 2 numbers is set on described rotating disk 12, described each claw 2 lower ends lay respectively in the arc-shaped slot 10 of correspondence.Rotating disk 12 centers are departed from this arc-shaped slot 10 centers of circle, and straight line L and the arc-shaped slot 10 at the center of circle of described arc-shaped slot 10 and rotating disk 12 places, center intersect, and this intersection location is the safe flex point 11 of arc-shaped slot 10.Safe flex point 11 is divided into two-part with arc-shaped slot 10: from arc-shaped slot 10 apart from rotating disk 12 centers more nearby to the arc A of safe flex point 11, from safe flex point 11 to arc-shaped slot 10 apart from rotating disk 12 centers arc B at a distance.
As shown in Fig. 1-3 combination, do not arrange at rotating disk 12 on the outer surface at arc-shaped slot 10 places tapped through hole is set, tapped through hole is communicated with rotating disk outer surface and steel ball passage 7, and steel ball 8 is inserted steel ball passage 7 from described tapped through hole, after steel ball 8 filled up steel ball passage 7, tapped through hole sealed with plug screw 9.
As Figure 1-3, rotating disk handle 16 is set on rotating disk, rotate rotating disk handle 16, the position of claw 2 lower ends in arc-shaped slot 10 will change thereupon, as shown in Figure 3, rotate counterclockwise rotating disk handle 16, claw 2 lower ends move to from the process of rotating disk 12 center closer locations from position far away, distance rotating disk 12 centers, claw 2 upper ends can relative axle ear 3 hinged places outwards open gradually; Clockwise rotate rotating disk handle 16, when claw 2 lower ends mobile on the arc-shaped slot 10 arc A section inter-syncs ground of correspondence, claw 2 upper ends are also insecure with being connected of tank car interface end 13, when running into the situations such as external force vibrations, may slide more nearby to distance rotating disk 12 centers in claw 2 lower ends, unclamp claw 2 upper ends; When claw 2 lower ends synchronously move to the position of safe flex point 11 of corresponding arc-shaped slot 10, claw 2 lower ends synchronously tighten with arc-shaped slot 10, continuation is in arc B section in moving process, the situation such as external force vibrations is loosening can not slide to safe flex point yet even run into, and claw 2 upper ends can realize reliably being connected with tank car interface end 13.
Advantage of the present invention is:
One, be connected in the rotating disk 12 that is socketed on pedestal 4 and is rotationally connected with pedestal 4 is set on pedestal 4 on the oil filling riser overhanging arm, the arc-shaped slot 10 corresponding with claw 2 numbers is set on rotating disk 12, each claw 2 lower ends lay respectively in corresponding arc-shaped slot 10, can be synchronously with respect to arc-shaped slot 10 motions of correspondence, simultaneously synchronously rotate with respect to the axle ear 3 of correspondence each claw 2 upper ends, realizes being connected with the interface end 13 of tank car.At first rotate counterclockwise rotating disk 12 during work, make each claw 2 lower ends synchronously in the interior relative movement of arc-shaped slot 10 of correspondence, synchronously outwards rotate with respect to the axle ear 3 of correspondence each claw 2 upper ends, then connector is moved to the position that is connected with tank car interface end 13, clockwise rotate subsequently rotating disk 12, each claw 2 lower ends are synchronously in the interior relative movement of arc-shaped slot 10 of correspondence, synchronously inwardly rotate with respect to the axle ear 3 of correspondence each claw 2 upper ends, blocks gradually tank car interface end 13.This set makes the attended operation of connector and tank car safe and simple, high working efficiency, and claw 2 easy-rupturing not.
Two, the straight line L at the center of circle of arc-shaped slot 10 and rotating disk 12 places, center and arc-shaped slot 10 intersect, this intersection location is the safe flex point 11 of arc-shaped slot 10, safe flex point 11 is divided into from arc-shaped slot 10 apart from rotating disk 12 centers arc-shaped slot 10 more nearby to the arc A of safe flex point 11, from safe flex point 11 to arc-shaped slot 10 apart from rotating disk 12 centers arc B at a distance.Clockwise rotate rotating disk 12, when claw 2 lower ends mobile on the arc-shaped slot 10 arc A section inter-syncs ground of correspondence, claw 2 upper ends are also insecure with being connected of tank car interface end 13, when running into the situations such as external force vibrations, may slide more nearby to distance rotating disk 12 centers in claw 2 lower ends, unclamp claw 2 upper ends; When claw 2 lower ends synchronously move to the position of safe flex point 11 of corresponding arc-shaped slot 10, claw 2 lower ends synchronously tighten with arc-shaped slot 10, continuation is in arc B section in moving process, the situation such as external force vibrations is loosening can not slide to safe flex point 11 yet even run into, and claw 2 upper ends can realize being connected with the reliable of tank car interface end 13.
Three, because the first annular groove 15 being set on rotating disk 12 and pedestal 4 contacted surface, on pedestal 4 and rotating disk 12 contacted surface, the second annular groove being set, and be combined into a steel ball passage 7, filling steel ball 8 in from the through hole of dodging arc-shaped slot 10 positions of rotating disk outer side surface setting to passage, fill up the rear sealing through hole of steel ball 8 in steel ball passage 7, thereby rotating disk 12 and pedestal 4 can be relatively rotated.Like this simplicity of design is set, with low cost.
Four, the through hole because of rotating disk 12 outer side surface settings is set to tapped through hole, with plug screw 9 through holes such as sealing thread such as threaded fastener such as grade, thereby steel ball 8 is sealed in steel ball passage 7.Like this simplicity of design is set, with low cost.
Five, be set to barb-shapedly because of claw 2 upper ends, make claw 2 simplicity of design, with low cost, comparatively reliable with being connected of tank car interface end 13.
Six, connect by bearing pin with corresponding axle ear 3 respectively because each claw 2 is set, make this connection reliable and with low cost.
Seven, because on contacted of pedestal 4 and tank car interface end 13, annular recess 5 being set, the interior sealing gasket 6 that arranges of annular recess 5 makes the sealing of connector base 4 and tank car interface end 13 improve like this, and the safety reliability of work further improves.
Eight, because rotating disk handle 16 is set on rotating disk 12, holds rotating disk handle 16 and control the rotation of rotating disk 12, thereby make working procedure more convenient.
Nine, because preferred claw 2 numbers are three, make claw 2 and being connected of tank car interface end 13 reliable and with low cost.
Strain when the present invention can reduce each claw work when using for the connector that connects oil filling riser and tank car in a word, be not easy to produce fracture, have greatly improved the working life to claw, and the working medium that unloads that is arranged so that of sealing gasket is difficult for revealing, the most important thing is the automaticity that can improve working procedure that arranges of rotating disk, on rotating disk safe flex point be arranged so that claw is safe and reliable with being connected of tank car interface end, promoted the Security of working efficiency and operation.
Claims (9)
1. connector that be used for to connect oil filling riser and tank car, comprise the pedestal that is connected on the oil filling riser overhanging arm and at least three axle ears that evenly distribute and fix along edge, pedestal outer, each axle ear respectively hinged one be used for claw that pedestal is connected with the tank car interface end, it is characterized in that: described connector for connecting oil filling riser and tank car also comprises and is set in the rotating disk that is rotationally connected with pedestal on pedestal, the arc-shaped slot corresponding with the claw number is set on described rotating disk, center of turntable is departed from the center of circle of this arc-shaped slot, described each claw lower end lays respectively in corresponding arc-shaped slot.
2. the connector for connecting oil filling riser and tank car according to claim 1, it is characterized in that: safe flex point is set in described arc-shaped slot, the straight line at the center of circle of described arc-shaped slot and center of turntable place and arc-shaped slot intersect, and this intersection location is the safe flex point of arc-shaped slot.
3. the connector for connecting oil filling riser and tank car according to claim 1 and 2, it is characterized in that: described rotating disk with pedestal contacted surface on the first annular groove is set, described pedestal with rotating disk contacted surface on the second annular groove is set, the first annular groove and the second annular groove consist of a steel ball passage, in the steel ball passage, steel ball is set, the through hole of dodging the arc-shaped slot position is set on the outer surface of rotating disk, described through hole is communicated with rotating disk outer surface and steel ball passage, after steel ball is inserted the steel ball passage from described through hole, the through hole sealing.
4. the connector for connecting oil filling riser and tank car according to claim 3, it is characterized in that: described through hole is tapped through hole, and plug screw is set in tapped through hole.
5. the connector for connecting oil filling riser and tank car according to claim 4 is characterized in that: described claw upper end is set to barb-shaped.
6. the connector for connecting oil filling riser and tank car according to claim 5 is characterized in that: described each claw connects by bearing pin with corresponding axle ear respectively.
7. the described connector for connecting oil filling riser and tank car of any one according to claim 4-6 is characterized in that: on contacted of described pedestal and tank car interface, annular recess is set, in described annular recess, sealing gasket is set.
8. the connector for connecting oil filling riser and tank car according to claim 7, is characterized in that: on described rotating disk, handle is set.
9. the connector for connecting oil filling riser and tank car according to claim 8, it is characterized in that: described claw number is three, described axle ear is identical with the claw number with the number of arc-shaped slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100673007A CN103148297A (en) | 2013-03-04 | 2013-03-04 | Connector for connecting loading arm with tank truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100673007A CN103148297A (en) | 2013-03-04 | 2013-03-04 | Connector for connecting loading arm with tank truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103148297A true CN103148297A (en) | 2013-06-12 |
Family
ID=48546531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100673007A Pending CN103148297A (en) | 2013-03-04 | 2013-03-04 | Connector for connecting loading arm with tank truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103148297A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299896A (en) * | 2016-12-07 | 2017-10-27 | 江苏国泉泵业制造有限公司 | A kind of automatic coupling mechanism for immersible pump underwater pipeline |
| CN107931578A (en) * | 2017-12-25 | 2018-04-20 | 芜湖市鸿坤汽车零部件有限公司 | A kind of automobile metal accessory Casting Equipment |
| CN112065825A (en) * | 2020-09-11 | 2020-12-11 | 浙江华东建设工程有限公司 | Automatic disconnect-type trigger structure |
| CN112082019A (en) * | 2020-09-02 | 2020-12-15 | 江苏长隆石化装备有限公司 | Efficient quick connection device and method |
| CN112170436A (en) * | 2020-09-28 | 2021-01-05 | 广州蜃境信息科技有限公司 | Exhaust gas recycling equipment |
| CN113217809A (en) * | 2020-01-21 | 2021-08-06 | 中国石油化工股份有限公司 | Dry-type quick joint for loading and unloading LNG (liquefied natural gas) car tank car |
| CN115789377A (en) * | 2022-12-13 | 2023-03-14 | 深圳市新源科技有限公司 | Quick butt joint for pipeline |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4722555A (en) * | 1986-03-20 | 1988-02-02 | Soultatis Apostolos K | Quick-connect coupling having heads unified with pipe |
| CN2207505Y (en) * | 1994-12-29 | 1995-09-13 | 高大路 | Jaw-type fast pipe union |
| ES1044358U (en) * | 1999-09-22 | 2000-04-01 | Calvo Francisco Vidal | Hydraulic coupling for pipes. (Machine-translation by Google Translate, not legally binding) |
| CN201056486Y (en) * | 2007-06-22 | 2008-05-07 | 江苏惠利特环保设备有限公司 | Fast sealing device of hair-oil crane pipe used for oil and gas recovery |
| CN201817267U (en) * | 2010-07-23 | 2011-05-04 | 洛阳欣谱石化设备有限公司 | Heavy oil discharge oil filling riser with oil receiving bucket |
| CN202402041U (en) * | 2011-12-09 | 2012-08-29 | 中铁隧道装备制造有限公司 | Pipeline conversion device of formwork trolley |
| CN203215160U (en) * | 2013-03-04 | 2013-09-25 | 江苏长隆石化装备有限公司 | Connector for connecting loading arm and tanker |
-
2013
- 2013-03-04 CN CN2013100673007A patent/CN103148297A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4722555A (en) * | 1986-03-20 | 1988-02-02 | Soultatis Apostolos K | Quick-connect coupling having heads unified with pipe |
| CN2207505Y (en) * | 1994-12-29 | 1995-09-13 | 高大路 | Jaw-type fast pipe union |
| ES1044358U (en) * | 1999-09-22 | 2000-04-01 | Calvo Francisco Vidal | Hydraulic coupling for pipes. (Machine-translation by Google Translate, not legally binding) |
| CN201056486Y (en) * | 2007-06-22 | 2008-05-07 | 江苏惠利特环保设备有限公司 | Fast sealing device of hair-oil crane pipe used for oil and gas recovery |
| CN201817267U (en) * | 2010-07-23 | 2011-05-04 | 洛阳欣谱石化设备有限公司 | Heavy oil discharge oil filling riser with oil receiving bucket |
| CN202402041U (en) * | 2011-12-09 | 2012-08-29 | 中铁隧道装备制造有限公司 | Pipeline conversion device of formwork trolley |
| CN203215160U (en) * | 2013-03-04 | 2013-09-25 | 江苏长隆石化装备有限公司 | Connector for connecting loading arm and tanker |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299896A (en) * | 2016-12-07 | 2017-10-27 | 江苏国泉泵业制造有限公司 | A kind of automatic coupling mechanism for immersible pump underwater pipeline |
| CN107299896B (en) * | 2016-12-07 | 2019-02-12 | 江苏国泉泵业制造有限公司 | A kind of automatic coupling mechanism for immersible pump underwater pipeline |
| CN107931578A (en) * | 2017-12-25 | 2018-04-20 | 芜湖市鸿坤汽车零部件有限公司 | A kind of automobile metal accessory Casting Equipment |
| CN113217809A (en) * | 2020-01-21 | 2021-08-06 | 中国石油化工股份有限公司 | Dry-type quick joint for loading and unloading LNG (liquefied natural gas) car tank car |
| CN112082019A (en) * | 2020-09-02 | 2020-12-15 | 江苏长隆石化装备有限公司 | Efficient quick connection device and method |
| CN112065825A (en) * | 2020-09-11 | 2020-12-11 | 浙江华东建设工程有限公司 | Automatic disconnect-type trigger structure |
| CN112170436A (en) * | 2020-09-28 | 2021-01-05 | 广州蜃境信息科技有限公司 | Exhaust gas recycling equipment |
| CN115789377A (en) * | 2022-12-13 | 2023-03-14 | 深圳市新源科技有限公司 | Quick butt joint for pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103148297A (en) | Connector for connecting loading arm with tank truck | |
| CN103090115B (en) | Method and structure for quickly fixing hoop | |
| CN203215160U (en) | Connector for connecting loading arm and tanker | |
| CN106428648A (en) | Cam-hook claw type space docking mechanism | |
| CN111994311B (en) | Rocket propellant filling butt joint system | |
| US8936053B2 (en) | Brake fill tool | |
| CN203176605U (en) | Electrohydraulic dual-purpose multichannel central revolving joint | |
| CN204300562U (en) | Rotary-type adpting flange device | |
| CN102607833A (en) | Ball pin durability test device | |
| CN106401515A (en) | Underwater horizontal type Christmas tree fetching and transporting tool | |
| CN204271367U (en) | A kind of locking fixture for USB interface | |
| CN107804337A (en) | A kind of rail vehicle and its attachment means | |
| CN104696636B (en) | A kind of Pneumatic crane tube steering knuckle | |
| CN110319301A (en) | A kind of flexible pipe detection device | |
| CN205895942U (en) | Cydariform tooth oil injection coupling | |
| CN106737842A (en) | Robot arm, magic chuck device and method of work | |
| CN204195215U (en) | Variable bit tightening mechanism | |
| CN211688235U (en) | Brake fluid replacing machine adapter | |
| CN206406085U (en) | Magic chuck device and robot arm | |
| CN205532379U (en) | Rock drilling machine flower disc device | |
| CN207727636U (en) | A kind of rotation quick connector | |
| CN201902398U (en) | Locking mechanism | |
| CN212532287U (en) | Safety locking device for loading oil filling riser | |
| CN205638305U (en) | Instrument is fetched and delivered to horizontal production tree under water | |
| CN204024532U (en) | Drilling rod loading assembly and the horizontal directional drilling machine that comprises this drilling rod loading assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130612 |