CN207039085U - A kind of communication pipe lead distributor - Google Patents

A kind of communication pipe lead distributor Download PDF

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Publication number
CN207039085U
CN207039085U CN201720751720.0U CN201720751720U CN207039085U CN 207039085 U CN207039085 U CN 207039085U CN 201720751720 U CN201720751720 U CN 201720751720U CN 207039085 U CN207039085 U CN 207039085U
Authority
CN
China
Prior art keywords
fuselage
circular arc
guide pad
motor
arc guide
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.)
Withdrawn - After Issue
Application number
CN201720751720.0U
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Chinese (zh)
Inventor
张枫华
张朱晨
王震
王加娟
王伟
王海云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Longma Communication Engineering Co Ltd
Original Assignee
Nanjing Longma Communication Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Longma Communication Engineering Co Ltd filed Critical Nanjing Longma Communication Engineering Co Ltd
Priority to CN201720751720.0U priority Critical patent/CN207039085U/en
Application granted granted Critical
Publication of CN207039085U publication Critical patent/CN207039085U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of communication pipe lead distributor, its drip irrigation device is to include fuselage, be arranged on the circular arc guide pad of fuselage one end, be arranged on motor of the fuselage away from circular arc guide pad one end, be arranged on the impeller for being used to promote fuselage to advance in the rotating shaft of motor, be arranged on the optical cable lead for drawing optical cable on motor;The fuselage is cylindrical, the circular arc guide pad, fuselage, motor are coaxially disposed, the one end of the circular arc guide pad away from circular arc is rotatablely connected with fuselage, the one end of the motor away from impeller is also rotatablely connected with fuselage, the fuselage side is fixedly connected with some braces, the brace is provided with directive wheel away from fuselage one end, and the described one end of circular arc guide pad away from fuselage is additionally provided with for observing the supervising device in pipeline.This communication pipe lead distributor quality is smaller, is easy to carry and operates, while is advantageous to lead and lays device in underground piping flexibly to advance and adjust posture.

Description

A kind of communication pipe lead distributor
Technical field
Communication line engineering field is the utility model is related to, more specifically, it relates to which a kind of communication pipe lead is laid Device.
Background technology
At present, in communication engineering, fiber cable laying is an important step of communication system construction, in new pore Optical cable is protected using hard plastic tube, existing Φ 90mm standard cement pores, can accommodate 3 28/32mm plastics pipes;Φ 110mm standard plastics pipeline can accommodate the sub- pipes of 28/32mm 4.The length that plastic tube is once laid is put as original with facilitating optical cable to wear Then.
Fiberglass pipe perforator is used first, is penetrated from a well in pore, is penetrated into another well, bring lead into, lays modeling Material for making clothes pipe, then, penetrated with fiberglass pipe perforator in the sub- pore of plastics, bring lead and optical cable into.Optical cable lays process In, fiberglass pipe perforator is heavier, inconvenient for operation.
Notification number is that CN203545355U Chinese patent discloses a kind of fiberglass pipe perforator for communication construction, it Including prop, rotating disk, two rollers, control pulley and fiberglass poling bar, the prop includes two and set relatively The triangular support body put;The rotating disk is rotatably arranged on the top of prop by a rotating shaft, and the rotating disk includes outer The retainer plate that circle, inner ring and multiple intervals are fixed between the outer ring and inner ring, each retainer plate are fixed by connection strap In the rotating shaft, the fiberglass poling bar is wound between the outer ring and inner ring and determined by the retainer plate Position;Described two rollers are fixed on the lower end of the prop and are oppositely arranged;The control pulley is fixed on the support The top of support and the one end for placing the fiberglass poling bar.
Although this fiberglass pipe perforator conveniently moving for communication construction is quick, manpower is saved, alleviates work Intensity, improve wiring efficiency;And bullet sudden strain of a muscle is avoided, processing safety is improved, but in the work progress of fiber cable laying It is required for carrying, and fiberglass pipe perforator is heavier, it is inconvenient to carry.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is that providing a kind of communication pipe lead lays Device, it the advantage is that quality is smaller, be easy to carry.
To achieve the above object, the utility model provides following technical scheme:A kind of communication pipe lead distributor, bag Fuselage is included, the circular arc guide pad of fuselage one end is arranged on, is arranged on motor of the fuselage away from circular arc guide pad one end, is arranged on It is used to promote the impeller of fuselage advance in the rotating shaft of motor, is arranged on motor and draws for drawing the optical cable of optical cable Line;
The fuselage is cylindrical, and the circular arc guide pad, fuselage, motor are coaxially disposed, and the circular arc guide pad is remote One end from circular arc is rotatablely connected with fuselage, and the one end of the motor away from impeller is also rotatablely connected with fuselage, the fuselage Side is fixedly connected with some braces, and the brace is provided with directive wheel away from fuselage one end, and the circular arc guide pad is away from fuselage One end be additionally provided with for observing the supervising device in pipeline.
By using above-mentioned technical proposal, motor impeller is rotated so as to promote fuselage to advance in pipeline, fuselage Head is provided with arc-shaped guide pad, and supervising device is additionally provided with guide pad, be advantageous to carry out the direction of advance of fuselage observation and Correct, so as to guide afterbody connect optical cable lead along pipeline, laying, fuselage surrounding connection brace, together When directive wheel is set on brace, directive wheel helps to be oriented to and the direction of advance for fuselage of rectifying a deviation, and avoids fuselage and underground piping Inwall contradicts the advance for influenceing fuselage, ensures that the laying process of optical cable lead is smooth, whole airframe structure is compact, compact side Just, it is easy to carry and use.
The utility model is further arranged to:The both ends of described fuselage are equipped with contiguous block, and the contiguous block is provided with Link slot, the motor is with being equipped with the moving block coordinated with link slot grafting, the moving block and company on circular arc guide pad One end that access slot grafting coordinates is arc-shaped, and the contiguous block is provided with the rotary shaft through moving block, the contiguous block and circle Gap be present between arc guide pad, motor.
By using above-mentioned technical proposal, the circular arc guide pad and motor at fuselage both ends are rotated by rotary shaft and fuselage Connect, the moving block on guide pad and motor is plugged in the link slot at fuselage both ends, moving block and the one of link slot grafting End is arranged to arc-shaped and gap be present between contiguous block and circular arc guide pad, motor, is advantageous to process of the fuselage in advance In meet with obstruction or conduit region that camber is larger, the circular arc guide pad and motor portion of fuselage can be flexibly according to realities The tube environment on border adjusts the shape of itself in time, ensures that fuselage can pass through the complex environment in pipe.
The utility model is further arranged to:Parcel contiguous block is provided between described contiguous block and circular arc guide pad with turning The rubber sleeve of motion block, it also is provided with wrapping up the rubber sleeve of contiguous block and moving block between contiguous block and the circular arc guide pad.
By using above-mentioned technical proposal, the setting of rubber sleeve advantageously ensures that circular arc guide pad and motor are advancing Process meets with obstruction, by can adjust angle between circular arc guide pad and motor and fuselage during uneven external force in time Degree, take the mode of fine setting direction of advance to ensure that fuselage remains advance, avoid causing because of nonadjustable fixed structure Fuselage jam is in bend, while rubber sleeve can also ensure that fuselage after by certain obstruction, entangles in the presence of elastic force Position relationship just between arc guide pad and motor and fuselage, fuselage is set to recover normal form and advance trend.
The utility model is further arranged to:The protective case for protecting impeller is fixedly connected with described motor.
By using above-mentioned technical proposal, protective case is advantageous to protect impeller, to pipe when avoiding advancing in underground piping Interior setting and impeller itself cause to damage, and ensure that the stable propulsion of fuselage device.
The utility model is further arranged to:The direction extension away from motor is provided with and optical cable on described protective case The fixation kit that lead is fixedly connected, the optical cable lead and fixation kit dismantling connection.
By using above-mentioned technical proposal, optical cable lead is held away from the protection of motor side by fixation kit On cover, optical cable lead is avoided because motor impeller causes to damage, ensures the laying of optical cable lead.
The utility model is further arranged to:Described fixation kit include one end be fixedly connected with protective case cross bar, The fix bar of the cross bar other end is arranged on, the cross bar is vertical with the axis of fuselage, the fix bar and fuselage axis coaxle.
By using above-mentioned technical proposal, optical cable lead is fixed on afterbody by cross bar, fix bar, both avoids The winding that may occur between impeller, while also ensure that optical cable lead was conveying with the fix bar of fuselage axis coaxle It is steady in journey, avoid that the phenomenon offset to a certain side occurs.
The utility model is further arranged to:The one end of described fix bar away from cross bar is provided with and passed through for optical cable lead Through hole.
By using above-mentioned technical proposal, the setting of through hole ensure that optical cable lead can be securely attached to fix bar On.
The utility model is further arranged to:Described brace is elastic rod, the angle of the brace and fuselage is 15 ° ~ 30°。
By using above-mentioned technical proposal, elastic rod contributes to fuselage surrounding flexibly to be shunk when being contradicted with inner-walls of duct, and Less angle ensure that brace will not excessively contradict the inlay card for causing fuselage in inner-walls of duct with inner-walls of duct, ensure that photoelectricity The smooth laying of cable lead.
The utility model is further arranged to:Described supervising device is the monitoring camera in embedded circular arc guide pad.
By using above-mentioned technical proposal, the monitoring camera in circular arc guide pad can give operating personnel intuitively underground Environmental images, in time according to the impact analysis all kinds of problems that may be present of cam feedback, ensure that communication pipe lead is laid The use of device.
The utility model is further arranged to:Described circular arc guide pad, fuselage, anti-watertight is equipped with the outside of engine Sealing.
By using above-mentioned technical proposal, because underground environment is moist and is possible to directly be exactly to use in foggara The distributor, so waterproof sealing layer ensure that the performance of distributor each several part, avoid because the reason such as water inlet causes lead cloth Put the failure of device.
In summary, the utility model has the advantages that:
1st, quality is smaller, is easy to carry and operates;
2nd, rubber sleeve is provided between circular arc guide pad, motor and fuselage, is advantageous to lead and lays device in underground piping Flexibly advance and adjustment posture;
3rd, optical cable lead puts the fix bar connection being connected with motor protection, makes optical cable and fuselage axis coaxle, The advance of optical cable is more steady in process of deployment;
4th, the monitoring camera set in circular arc guide pad can be observed tube environment with assist operators, in time Effective processing emergency case.
Brief description of the drawings
Fig. 1 is that communication pipe lead lays device structural representation;
Fig. 2 is the schematic diagram that displaying communication pipe lead lays device attachment structure;
Fig. 3 is A-A sectional views in Fig. 2.
Reference:1st, fuselage;11st, brace;12nd, directive wheel;13rd, contiguous block;131st, link slot;132nd, rotary shaft;14、 Battery;2nd, circular arc guide pad;3rd, motor;31st, impeller;32nd, protective case;321st, guiding gutter;4th, optical cable lead;5th, rotate Block;6th, rubber sleeve;7th, fixation kit;71st, cross bar;72nd, fix bar;721st, through hole;8th, monitoring camera;9th, waterproof sealing layer.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment:A kind of communication pipe lead distributor, as shown in figures 1 and 3, including fuselage 1, it is arranged on fuselage 1 one The circular arc guide pad 2 at end, it is arranged on motor 3 of the fuselage 1 away from the one end of circular arc guide pad 2, is arranged in the rotating shaft of motor 3 It is used for the optical cable lead 4 for drawing optical cable on motor 3 for promoting the impeller 31 of the advance of fuselage 1, being arranged on, in fuselage 1 Inside be provided with to motor 3 power battery 14.
As depicted in figs. 1 and 2, fuselage 1 is cylindrical, and some braces 11, brace 11 are fixedly connected with the side of fuselage 1 One end away from fuselage 1 is provided with directive wheel 12, when fuselage 1 advances in underground piping, the directive wheel 12 on brace 11 Contradicted with pipe side wall, directive wheel 12, which rotates, can be achieved moving on for fuselage 1, avoid fuselage 1 because being touched with pipe side wall It is out of control to hit the direction of advance of fuselage 1 that may be brought, ensures that fuselage 1 can be continuously advanced in underground piping.In order to avoid brace 11 and directive wheel 12 blocked during fuselage 1 advances with line clogging, so the lead lays the brace 11 and fuselage 1 of device Between angle be 15 ° ~ 30 °, avoid the excessive lead that has influence on of angle from laying work and advance of the device in pipeline, while the brace 11 be elastic rod, and when environment is excessively narrow in pipeline or fuselage 1 is excessively contradicted with pipeline, brace 11 can shrink folding, Fuselage 1 is passed through pipeline inside points special area, when by after, brace 11 can open in the presence of elastic force Recover as former state, to continue to play a part of being oriented to and protect, ensure that lead lays the normal and continuous firing of device.
As depicted in figs. 1 and 2, circular arc guide pad 2 is coaxially disposed with fuselage 1, it is ensured that circular arc guide pad 2 and fuselage 1 The stability of connection, avoid causing lead distributor the unstable situation of motion excursion occur because of not coaxial.Fuselage 1 with The position that circular arc guide pad 2 connects is provided with contiguous block 13, and contiguous block 13 is provided with link slot 131, is provided with circular arc guide pad 2 The moving block 5 coordinated with the grafting of link slot 131, contiguous block 13 are provided with the rotary shaft 132 through moving block 5, pass through contiguous block 13 and link slot 131 grafting coordinate and the connection with rotary shaft 132, be advantageous to the company between circular arc guide pad 2 and fuselage 1 Connect stability.The moving block 5 and one end of the grafting of link slot 131 are arc-shaped, are set between contiguous block 13 and circular arc guide pad 2 There is gap, the rubber sleeve 6 of parcel circular arc guide pad 2 and moving block 5 is provided with gap, lay device when lead and met during advance When to larger resistance or needing to turn in smaller space, circular arc guide pad 2 can be under external force around rotary shaft 132 Rotated to side, now wrap up the side compression of rubber sleeve 6 one of circular arc guide pad 2 and contiguous block 13, make circular arc guide pad 2 and fuselage Drift angle is produced between 1, so as to realize that whole lead lays the adjustment of device direction of advance, is allowed to smoothly bypass some complicated pipe inner ring Border.Device is laid by the way that afterwards, rubber sleeve 6 can extrude circular arc guide pad 2 under the driving of natural resiliency power extensive in whole lead The multiple extremely position coaxial with fuselage 1, ensures that lead lays the normal direction of advance of device, while rubber sleeve 6 is being compressed to certain journey Degree can not continue to compress, and prevent the ovdersteering of circular arc guide pad 2, ensure that lead lays the normal work of device.
As shown in Fig. 2 monitoring camera 8 is additionally provided with circular arc guide pad 2, because the environment in underground piping is complicated more Become, operating personnel can not directly obtain the situation of underground, and the setting of monitoring camera 8 ensure that operating personnel can pass through feedback Information timely processing some emergency cases, ensure that lead lays normal work of the device in pipeline.
As depicted in figs. 1 and 2, the one end of fuselage 1 away from circular arc guide pad 2 is provided with contiguous block 13, and contiguous block 13 is provided with Link slot 131, motor 3 are provided with the moving block 5 coordinated with the grafting of link slot 131, passed through between moving block 5 and link slot 131 Rotary shaft 132 is installed with, one end of moving block 5 and the grafting of link slot 131 is arranged to arc-shaped, is advantageously implemented fuselage 1 and electricity Rotation between motivation 3, the rubber sleeve of parcel contiguous block 13 and motor 3 is provided with the gap between fuselage 1 and motor 3 6, when lead, which lays device, to advance in underground piping, run into part bend or can not smoothly ensure that lead lays device each several part The region passed through with coaxial posture, by being rotatablely connected between motor 3 and fuselage 1, it is possible to achieve motor 3 and fuselage 1 it Between angle regulation.When fuselage 1 needs to deflect to side under external force, fuselage 1 deflects around rotary shaft 132, corresponding The side compression of rubber sleeve 6 one of contiguous block 13 and motor 3 is wrapped up, because the rubber sleeve 6 has compression limit, that is, is compressed to certain Degree rubber sleeve 6 can not continue to compress, so avoiding between fuselage 1 and motor 3, deviation angle is excessive, influence lead laying The normal advance of device, when lead lay device with the posture that angle is offset by specific region after, fuselage 1 and motor 3 exist It can recover to be in coaxial state in the presence of the elastic restoring force of rubber sleeve 6, ensure smoothly to advance in pipeline.
As shown in figure 1, the power source of whole lead distributor both is from providing driving in the impeller 31 on motor 3, it is Ensure the stabilization of power output, the protective case 32 of protection impeller 31 has been fixedly connected with motor 3, can have been avoided in pipeline Other factors have influence on the rotation of impeller 31.It is provided with direction extension of the protective case 32 away from motor 3 solid with optical cable lead 4 Surely the fixation kit 7 connected, impeller 31 of the optical cable lead 4 away from motor 3 is set, has both protected 31 normal work of impeller Make, also avoid winding between optical cable lead 4 and impeller 31 being present, ensure the normal work of lead laying device.Protecting simultaneously Some guiding gutters 321 are additionally provided with set 32, during work, guiding gutter 321 plays water conservancy diversion and reduced to be hindered lead distributor The effect of power, the forward work for being easy to lead distributor to stablize.
As shown in figure 1, being detachably connected between optical cable lead 4 and fixation kit 7, the installation for facilitating operating personnel is torn open Unload, ensure operating efficiency.Fixation kit 7 includes the cross bar 71 that one end is fixedly connected with protective case 32, to be arranged on cross bar 71 another The fix bar 72 of one end, cross bar 71 is vertical with the axis of fuselage 1, fix bar 72 and the axis coaxle of fuselage 1, remote in fix bar 72 One end from cross bar 71 passes through through hole 721 and fix bar 72 provided with the through hole 721 passed through for optical cable lead 4, optical cable lead 4 Connection, and holding and the axis coaxle of fuselage 1, ensure that optical cable lead 4 is steady in course of conveying, avoid because being inclined to certain The movement tendency of optical cable lead 4 that side may be brought is chaotic, and obstruction is brought to the laying work of normal lead.
As shown in Figures 2 and 3, it is contemplated that the work progress of actual leads laying is all in the even more complicated current ring in underground Within the border, so the circular arc guide pad 2 of the communication pipe lead laying device, fuselage 1, being equipped with waterproof sealing layer on the outside of engine 9, avoid the factors such as current from having influence on the normal work of each component of lead laying device.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but As long as all protected in right of the present utility model by Patent Law.

Claims (10)

1. a kind of communication pipe lead distributor, it is characterized in that:Including fuselage(1), be arranged on fuselage(1)The circular arc of one end is oriented to Block(2), be arranged on fuselage(1)Away from circular arc guide pad(2)The motor of one end(3), be arranged on motor(3)Rotating shaft on use In promotion fuselage(1)The impeller of advance(31), be arranged on motor(3)The upper optical cable lead for being used to draw optical cable(4);
The fuselage(1)It is cylindrical, the circular arc guide pad(2), fuselage(1), motor(3)It is coaxially disposed, the circular arc Guide pad(2)One end and fuselage away from circular arc(1)Rotation connection, the motor(3)Away from impeller(31)One end also with Fuselage(1)Rotation connection, the fuselage(1)Side is fixedly connected with some braces(11), the brace(11)Away from fuselage(1) One end is provided with directive wheel(12), the circular arc guide pad(2)Away from fuselage(1)One end be additionally provided with for observing the prison in pipeline Control device.
2. a kind of communication pipe lead distributor according to claim 1, it is characterized in that:The fuselage(1)Both ends it is equal Provided with contiguous block(13), the contiguous block(13)It is provided with link slot(131), the motor(3)With circular arc guide pad(2)On It is equipped with and link slot(131)The moving block that grafting coordinates(5), the moving block(5)With link slot(131)The one of grafting cooperation Hold as arc-shaped, the contiguous block(13)It is provided with and runs through moving block(5)Rotary shaft(132), the contiguous block(13)With circle Arc guide pad(2), motor(3)Between gap be present.
3. a kind of communication pipe lead distributor according to claim 2, it is characterized in that:The contiguous block(13)With circular arc Guide pad(2)Between be provided with parcel contiguous block(13)With moving block(5)Rubber sleeve(6), the contiguous block(13)Led with circular arc To block(2)Between also be provided with wrap up contiguous block(13)With moving block(5)Rubber sleeve(6).
4. a kind of communication pipe lead distributor according to claim 1, it is characterized in that:The motor(3)Upper fixation It is connected with for protecting impeller(31)Protective case(32).
5. a kind of communication pipe lead distributor according to claim 4, it is characterized in that:The protective case(32)It is upper remote Motor(3)Direction extension be provided with and optical cable lead(4)The fixation kit being fixedly connected(7), the optical cable lead(4) With fixation kit(7)Dismantling connection.
6. a kind of communication pipe lead distributor according to claim 5, it is characterized in that:The fixation kit(7)Including One end and protective case(32)The cross bar being fixedly connected(71), be arranged on cross bar(71)The fix bar of the other end(72), the cross bar (71)With fuselage(1)Axis it is vertical, the fix bar(72)With fuselage(1)Axis coaxle.
7. a kind of communication pipe lead distributor according to claim 6, it is characterized in that:The fix bar(72)Away from horizontal Bar(71)One end be provided with supply optical cable lead(4)The through hole passed through(721).
8. a kind of communication pipe lead distributor according to claim 1, it is characterized in that:The brace(11)For elasticity Bar, the brace(11)With fuselage(1)Angle be 15 ° ~ 30 °.
9. a kind of communication pipe lead distributor according to claim 1, it is characterized in that:The supervising device is justified to be embedded Arc guide pad(2)Interior monitoring camera(8).
10. a kind of communication pipe lead distributor according to claim 1, it is characterized in that:The circular arc guide pad(2)、 Fuselage(1), be equipped with waterproof sealing layer on the outside of engine(9).
CN201720751720.0U 2017-06-24 2017-06-24 A kind of communication pipe lead distributor Withdrawn - After Issue CN207039085U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720751720.0U CN207039085U (en) 2017-06-24 2017-06-24 A kind of communication pipe lead distributor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720751720.0U CN207039085U (en) 2017-06-24 2017-06-24 A kind of communication pipe lead distributor

Publications (1)

Publication Number Publication Date
CN207039085U true CN207039085U (en) 2018-02-23

Family

ID=61469127

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720751720.0U Withdrawn - After Issue CN207039085U (en) 2017-06-24 2017-06-24 A kind of communication pipe lead distributor

Country Status (1)

Country Link
CN (1) CN207039085U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107086502A (en) * 2017-06-24 2017-08-22 南京市龙马通信工程有限公司 A kind of communication pipe lead distributor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107086502A (en) * 2017-06-24 2017-08-22 南京市龙马通信工程有限公司 A kind of communication pipe lead distributor
CN107086502B (en) * 2017-06-24 2019-02-15 南京市龙马通信工程有限公司 A kind of communication pipe lead distributor

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GR01 Patent grant
GR01 Patent grant
CP02 Change in the address of a patent holder
CP02 Change in the address of a patent holder

Address after: 211299 Hongguang East Road, Lishui Economic Development Zone, Nanjing, Jiangsu, 17

Patentee after: Nanjing Longma Communication Engineering Co. Ltd.

Address before: 211200 Shuang Tong Road, Lishui Economic Development Zone, Nanjing, Jiangsu

Patentee before: Nanjing Longma Communication Engineering Co. Ltd.

AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20180223

Effective date of abandoning: 20190215