CN203082449U - Rubber ball sealer with built-in butterfly-shaped board - Google Patents
Rubber ball sealer with built-in butterfly-shaped board Download PDFInfo
- Publication number
- CN203082449U CN203082449U CN 201220703353 CN201220703353U CN203082449U CN 203082449 U CN203082449 U CN 203082449U CN 201220703353 CN201220703353 CN 201220703353 CN 201220703353 U CN201220703353 U CN 201220703353U CN 203082449 U CN203082449 U CN 203082449U
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- China
- Prior art keywords
- ball sealer
- rubber ball
- butterfly plate
- support tube
- shutoff
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- 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- Withdrawn - After Issue
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Abstract
The utility model discloses a rubber ball sealer with a built-in butterfly-shaped board. The rubber ball sealer comprises a sealing component rubber ball sealer body, the butterfly-shaped board, a transmission mechanism sealing lead screw supporting pipe, a rotary rod and the like. The butterfly-shaped board is arranged in the rubber ball sealer body. According to the technology of the rubber ball sealer with the built-in rotary butterfly-shaped board, quick-sealing demands which are particularly needed before a pipeline is repaired can be met. Compared with a traditional sealing mode, the rubber ball sealer can save more than one half of operation time and is widely suitable for urban gas and operation of repair and improvement of the pipeline with tap water being in low-pressure operation, and operations of transmission stopping, pressure reduction and sealing of a long and high-pressure oil and gas pipeline can be achieved.
Description
[technical field]
The utility model relates to the special-purpose member of the shutoff of low-pressure fluid conveyance conduit construction technology, particularly gas, the construction of running water pipe pipe plugging, a kind of built-in butterfly plate rubber ball sealer.
[background technique]
Accidents such as leakages appear in the pipeline for different mediums such as the oil in using, chemical industry, rock gases, require usually pipeline not under the situation of stopping transportation band compress into capable shutoff and construct.Existing pipe plugging technology roughly has: disc type, cartridge type, collapsible, 4 kinds of main shutoff modes of capsule formula.These several modes have his own strong points, but the operating procedure of every kind of shutoff mode is all relatively complicated, and operating technology is had relatively high expectations.Disc type, collapsible, three kinds of mode shutoff of capsule formula also all exist the shortcoming that shutoff is leaked and can not be compensated, though and the cartridge type shutoff possesses the performance of compensation plugging effect, shutoff equipment that the cartridge type shutoff is used and pipe fitting are all greater than pipeline specifications; Tubing need be bored in the shutoff four-way pipe fitting and break, perforate and shutoff time are longer relatively; The activity duration of the shutoff of job site welding simultaneously pipe fitting also need prolong.
[model utility content]
The purpose of this utility model is in order to overcome the deficiencies in the prior art, and provide a kind of built-in butterfly plate rubber ball sealer, this built-in butterfly plate rubber ball sealer has compensate function, also can only open an aperture and get final product the big specification pipeline of shutoff, saves the activity duration greatly.
The utility model be address the above problem the scheme that is adopted be the design a kind of built-in butterfly plate rubber ball sealer.It is characterized in that comprising blocking component and driving mechanism;
Described blocking component is made up of rubber ball sealer and butterfly plate, and wherein: the profile of described rubber ball sealer is near cylindrical, and the bottom is spherical; Described butterfly plate places in the rubber ball sealer, and the butterfly plate surface is concavo-convex corresponding with rubber ball sealer inner surface configuration, and the symmetry center axis hole of butterfly plate is interior hexagonal hole;
Described driving mechanism vertically moves drive part by blocking component and butterfly plate rotation drive part is formed, wherein: described blocking component vertically moves drive part and comprises a shutoff leading screw support tube, this shutoff leading screw support tube be a middle part be fixed with rubber ball sealer fixed support dish be the cross support tube, the endoporus of shutoff leading screw support tube is a unthreaded hole, the external diameter of the first half of shutoff leading screw support tube is provided with threads of lead screw, its external diameter also is connected with a blocking machine overcoat by the key Placement, press female will being sandwiched in wherein by a mother lead screw in the last seam of described blocking machine overcoat with the shoulder of the "T"-shaped mother lead screw of shutoff leading screw support tube threads of lead screw engagement, on the mother lead screw external diameter above the described mother lead screw pressure mother, be connected with a handwheel, and handwheel is pressed with handwheel female fixing by the key Placement; Described butterfly plate rotation drive part is the swingle of endoporus suit at shutoff leading screw support tube, and the top of described swingle connects the rotating power input mechanism, and the bottom of described swingle is one section outer six square bar of stretching in shutoff leading screw support tube outward;
The rubber ball sealer fixed support dish of described shutoff leading screw support tube penetrates the top of rubber ball sealer and butterfly plate with the bottom from the vertical axle center of rubber ball sealer, in the shutoff leading screw support tube outside the bottom of swingle six square bars then penetrate in the interior hexagonal hole of butterfly plate; The rubber ball sealer fixed support dish of described shutoff leading screw support tube is fixed on its surface down with the rubber ball sealer.
The beneficial effects of the utility model are: built-in rotation butterfly plate rubber ball sealer technology can solve pipeline before robbing maintenance, especially the quick blocking demand that needs.Can save the activity duration over half than other shutoff mode, be widely used in gas, the pipeline of tap water low pressure operation is robbed maintenance and pipeline modification work, also can solve the stopping transportation step-down shutoff work of long defeated petroleum gas high pressure pipe line.Particularly:
1. the utility model only need be opened an aperture and get final product the big specification pipeline of shutoff.Can adopt flange spool owing to drive the shutoff pipe fitting of aperture, not need the threeway backplate, high pressure pipe line can increase reinforcement can meet the steel pipe installation specification, can save for on-the-spot 2/3 weld interval.Example: weld a secondary Φ 426 shutoff threeways, connecting centering to be installed and to be welded needs to consume 6-7 hour; Only need 2-2.5 hour and weld a secondary flange spool.
2. the performance that has the plugging effect compensation.Built-in butterfly plate ball is equivalent to install together interim butterfly valve in pipeline, rubber body is not changeed, butterfly plate in rubber body, rotate 90% can will insert ball (rod) in the pipeline from the cylindrical oblateness that crossfades into, be the rotation dead point between the 85%-90%, when plugging effect has leakage slightly, the butterfly plate angle rotates to the dead point, can play the effect of plugging effect compensation.
3. simple and quick.Insert pipeline owing to adopt the flexible profile of ball, possessed characteristics simple and quick, easy grasp, its operational sequence: (1) is inserted block head in the pipeline, (2) finish by 85 ° of-90 ° of shutoff of external swingle rotation, with respect to other shutoff mode, on-the-spot operation easier and accurate requirement reduce a lot.
4. adaptability is strong.The material of ball can adopt flexible materials such as the rubber of butadiene acrylonitrile rubber (NBR) or other kind and polytetrafluoroethylene, the thin-walled of spheroid is thick to be more than the 15-20 ㎜, can adapt to the complicated state in the pipeline, as: the pipeline situation that iron filings, dirt, wax deposition, scale, welding bead, ovality etc. are on-the-spot.Colloid hardness is 70 ° ± 3 ° in the B point position hardness of fixed position and spheroid internal surface up and down, and hardness is 50 ° ± 3 ° in the middle part of the spheroid.
5. there is the fixed support dish rubber ball sealer (rod) spheroid upper end, there is support tube the dish lower end, swingle is arranged in the pipe, support tube and swingle penetrate butterfly plate by the ball center hole, the formed individual event pressure of rubber spheroid pipeline medium after shutoff, support by fixed support dish and flange spool internal diameter, formed block head shutoff bearing capacity to medium in pipeline, but bearing medium reaches 0.5MPa to the individual event pressure power of block head, be applicable to that pressure is the following low pressure pipeline of 0.5MPa, also is applicable to the step-down shutoff of high pressure pipe line simultaneously.(Fig. 2)
[description of drawings]
Fig. 1 is built-in butterfly plate rubber ball sealer master cross-sectional schematic;
Fig. 2 is built-in butterfly plate rubber ball sealer side cross-sectional schematic;
Fig. 3 is a butterfly plate work schematic representation;
Fig. 4 looks schematic representation for rubber ball sealer spline piece master;
Fig. 5 is a rubber ball sealer spline piece schematic side view;
Fig. 6 is a built-in butterfly plate rubber ball sealer horizontal section mounting point schematic representation;
Fig. 7 is built-in butterfly plate rubber ball sealer horizontal section butterfly plate rotation schematic representation;
Fig. 8 is built-in butterfly plate rubber ball sealer horizontal section sealed condition schematic representation;
Fig. 9 is built-in butterfly plate rubber ball sealer construction application schematic representation;
Figure 10 is the schematical top view of shutoff leading screw support tube.
Among the figure: 1, guiding umbrella cover district; 2, rubber ball sealer fixed support dish; 3, shackle; 4, shutoff leading screw support tube; 5, swingle; 6, rubber ball sealer; 7, butterfly plate; 8, spline piece; 9, flange spool; 10, cutter valve; 11, blocking machine overcoat; 12, cam body; 13, mother lead screw; 14, handwheel is pressed female; 15, key for sleeping in; 16, handwheel; 17, mother lead screw is pressed female; 18, spline key; 19, worm-and-wheel gear.
Be described in detail with reference to accompanying drawing below in conjunction with embodiment of the present utility model.
[embodiment]
Built-in butterfly plate rubber ball sealer of the present utility model comprises blocking component and driving mechanism.(seeing Fig. 1,2,9,10).
Described blocking component is by rubber ball sealer 6, butterfly plate 7 compositions such as grade.The profile of described rubber ball sealer is near cylindrical, and the bottom is spherical.And the spherical bottom of rubber ball sealer can be cylndrical surface spline piece 8 in the part increase along parallel butterfly plate direction, the bottom surface, cylndrical surface of spline piece can make the rubber ball sealer and be closed and manage the applying of position, bottom in the pipeline and make rubber ball sealer location, avoids rotating (seeing Fig. 4,5) bottom the rubber ball sealer.
Described butterfly plate places in the rubber ball sealer, and the butterfly plate surface is concavo-convex corresponding with rubber ball sealer inner surface configuration, and the symmetry center axis hole of butterfly plate is interior hexagonal hole.The central region of described butterfly plate is the groundwork district of butterfly plate, and its cross section is the cam-shaped of symmetry, also is provided with guiding umbrella cover district 1(at the cam body 12 upper and lower edges of butterfly plate to the top of butterfly plate and bottom and sees Fig. 1,2,6-8).
Described shutoff leading screw support tube 4 penetrates the rubber ball sealer and penetrates butterfly plate top from rubber ball sealer top center, shutoff leading screw support tube is connected with a rubber ball sealer fixed support dish 2 being positioned at rubber ball sealer tip position place, and rubber ball sealer 6 is fixed on its surface down.Wherein, described rubber ball sealer fixed support dish can have an annular edge mouth, the top of described rubber ball sealer can be provided with a "T"-shaped ring platform, be placed with the shackle of forming by two metal ring plates 3 in the circular groove that "T"-shaped ring platform forms down, and the ring platform of rubber ball sealer is loaded in the annular edge mouth of rubber ball sealer fixed support dish, and by a plurality of screws rubber ball sealer fixed support dish and shackle is fixed into whole (see figure 1) together with the ring platform of the rubber ball sealer of centre.For the rubber ball sealer fixed support dish on the described support tube rubber ball sealer is fixed on its surface down, other various fixed mode can also be arranged, as long as rubber ball sealer and support tube are fixed as one by physics mode, then all satisfy the utility model requirement.
Driving mechanism of the present utility model is used for finishing blocking component and vertically moves the job requirement of rotating with butterfly plate.Shown in Fig. 9,10, shutoff leading screw support tube carrying blocking component wherein moves with butterfly plate and rotates associated components.This shutoff leading screw support tube be a middle part be fixed with rubber ball sealer fixed support dish be the cross support tube, the top of support tube is provided with the blocking component moving member.Middle part fixed support dish is used for the rubber ball sealer in the leak stopping assembly fixing with it.The interior unthreaded hole of shutoff leading screw support tube is used for the dwang that suit rotates butterfly plate.
Described blocking component vertically moves drive part, and the external diameter that is included in the first half of shutoff leading screw support tube is provided with threads of lead screw, and its external diameter also is connected with a blocking machine overcoat 11 by the key Placement.For example can be on the threads of lead screw of support tube, to open a pod, the corresponding spline key 18 of in the blocking machine overcoat, adorning, thus the restriction support tube rotates in the blocking machine overcoat.
In addition, end suitable for reading (for the ladder seam) at the blocking machine overcoat presses female 17 shoulders that will be engaged on the "T"-shaped mother lead screw 13 on the support tube threads of lead screw to be sandwiched in wherein by a mother lead screw, on the mother lead screw external diameter above the described mother lead screw pressure mother, also be connected with a handwheel 16, and press female 14 to fix with handwheel by the key Placement.Its concrete structure can be that symmetry is fixed two keys 15 for sleeping on the mother lead screw external diameter, and is provided with keyway in the handwheel hole, presses female 14 fixedly to finish with handwheel in the back thereon the handwheel sleeve dress.
Described butterfly plate rotates drive part, is that swingle 5 is sleeved in the endoporus of shutoff leading screw support tube, and the top of swingle connects the rotating power input mechanism.The rotating power input mechanism that the top of described swingle connects also can be to connect other revolving power mechanism for connecting worm-and-wheel gear 19.Outer six square bars of the bottom of described swingle are sleeved in the interior hexagonal hole of butterfly plate.
When the utility model is operated in shutoff, at first be with the blue pipe nipple 9 of pressure welding connection on the pipeline position of need shutoff, cutter valve 10 is installed in the back on flange spool, the perforator band is installed then is pressed in perforate on the pipeline that needs shutoff, again with tools lift to the cutter valve, close the cutter valve, and remove perforator.After carrying out above-mentioned preparatory work, the complete machine that blocking machine is installed is opened valve on the cutter valve.By the rotation hand wheel on the shutoff leading screw support tube, with rubber ball sealer and butterfly plate, insert the pipeline that needs shutoff from pipe pressurized tapping.When rotation hand wheel, can drive the mother lead screw rotation, thereby make leading screw do downward straight line motion, cause the rubber ball sealer to be pressed on the pipeline inner bottom part.At this moment, rubber ball sealer, fixed support dish and flange spool 9 endoporus that are welded on the pipeline that needs shutoff form the supporting relation that anti-spheroid moves.When built-in swingle at rotating driving device 19(worm-and-wheel gear) drive under when rotating 90 °, butterfly plate produces rotation, the spherical bottom of rubber ball sealer is compressed under the situation that control do not change by vertical bottom of spline piece 8 and pipeline, make the cam body 12 turn rubber ball sealer middle and lower parts distortion on the butterfly plate, rubber shutoff spheroid is to tube wall direction spreading, thereby reach the purpose (seeing Fig. 3, Fig. 6-7) of blocking pipe.After using the utility model to finish shutoff, the interior rebuilding construction of pipe plugging point will can be begun just after the part row pressure within the pipe plugging point to carry out.The 90 ° of block head deformation of after (general pipe plugging establish two shutoff points) construction is finished swingle being circled round are restored and are regained, and retreat to the cutter valve with the upper part, close the cutter valve, and play plug handle is torn the cutter valve open, covers blind plate work and finishes.
The structure and the working principle of the utility model rubber ball sealer are:
The utility model butterfly plate is oval butterfly in the rubber ball sealer tabular, and butterfly plate divides four profile parts (seeing that Fig. 2,2-2 are to 2-4) from top to bottom:
2-1. shutoff leading screw support tube attachment portion: the bottom of support tube and butterfly plate top suit.The swingle butterfly plate of packing into is play the guiding role, and make butterfly plate be fixed the support force of supporting disk, thereby finish the rotation of butterfly plate and overcome the individual event pressure thrust (see figure 2) that pipeline medium forms after shutoff.
2-2. rotary steering umbrella cover district: the rotation to butterfly plate when butterfly plate is worked of this zone works the leading role that alleviates rotating force, it can reduce the rotating force of butterfly plate in the rubber ball sealer, and guarantees that the maximum rotating force of butterfly plate rotation and the tensor that extends out of ball sealer concentrate in the 2-3 zone, butterfly plate middle part.(seeing Fig. 7 and Fig. 8).
2-3. shutoff working area: insert hexagonal hole in the butterfly plate by six square bars outside the swingle bottom, drive butterfly plate and rotate, make the distortion of rubber ball sealer, realize shutoff to ☆ both sides spatial expansion.The position that butterfly plate is the thinnest " A " also is the thickest position " B " point of rubber ball sealer, the C point (is seen Fig. 3 for the shutoff point of greatest diameter behind the butterfly plate half-twist, 8), when butterfly plate rotates, the thickest position of rubber ball sealer " B " point begins to be subjected to the cam body turn of butterfly plate to expand outwardly, spheroid crossfades into oblate (see figure 7), when butterfly plate rotates to 90%, " B " point of rubber ball sealer is positioned at the crossing (see figure 8) in " C " some position of butterfly plate, this also is the position that the rubber ball sealer is expanded the size maximum outward, when expanded dimension during greater than internal diameter of the pipeline, the butterfly plate rotation has formed the rotation dead point, also is the some position of compensation plugging effect.
2-4. rotary steering umbrella cover district and location: act on identical with 2-2.The effect (see figure 2) of the ball of compressing to duct bottom arranged in addition at the umbrella cover bottom simultaneously.
The built-in butterfly plate of the utility model is in the ball spheroid, the internal surface that ball contacts with the steel butterfly plate is a concave-convex type, butterfly plate matrix place is the convex part of rubber body internal surface among Fig. 6, when butterfly plate begins to rotate, begin to arch the convex place (B point) of ball internal surface by butterfly plate cam body 12 positions, solve the rotation of butterfly plate in the entity ball with this and replenish the ability that extends out, and (Fig. 2: the B point) the maximum cylindrical with the butterfly body intersects to make the interior thick of rubber spheroid when rotated, formed the largest deformation of rubber body in pipeline, realized the purpose (Fig. 8: C point and B point) of ball sealer shutoff large-diameter pipeline in pipeline of minor diameter with this.
Claims (9)
1. a built-in butterfly plate rubber ball sealer is characterized in that comprising blocking component and driving mechanism;
Described blocking component is made up of rubber ball sealer and butterfly plate, and wherein: the profile of described rubber ball sealer is near cylindrical, and the bottom is spherical; Described butterfly plate places in the rubber ball sealer, and the butterfly plate surface is concavo-convex corresponding with rubber ball sealer inner surface configuration, and the symmetry center axis hole of butterfly plate is interior hexagonal hole;
Described driving mechanism vertically moves drive part by blocking component and butterfly plate rotation drive part is formed, wherein: described blocking component vertically moves drive part and comprises a shutoff leading screw support tube, this shutoff leading screw support tube be a middle part be fixed with rubber ball sealer fixed support dish be the cross support tube, the endoporus of shutoff leading screw support tube is a unthreaded hole, the external diameter of the first half of shutoff leading screw support tube is provided with threads of lead screw, its external diameter also is connected with a blocking machine overcoat by the key Placement, press female will being sandwiched in wherein by a mother lead screw in the last seam of described blocking machine overcoat with the shoulder of the "T"-shaped mother lead screw of shutoff leading screw support tube threads of lead screw engagement, on the mother lead screw external diameter above the described mother lead screw pressure mother, be connected with a handwheel, and handwheel is pressed with handwheel female fixing by the key Placement; Described butterfly plate rotation drive part is the swingle of endoporus suit at shutoff leading screw support tube, and the top of described swingle connects the rotating power input mechanism, and the bottom of described swingle is one section outer six square bar of stretching in shutoff leading screw support tube outward;
The rubber ball sealer fixed support dish of described shutoff leading screw support tube penetrates the top of rubber ball sealer and butterfly plate with the bottom from the vertical axle center of rubber ball sealer, in the shutoff leading screw support tube outside the bottom of swingle six square bars then penetrate in the interior hexagonal hole of butterfly plate; The rubber ball sealer fixed support dish of described shutoff leading screw support tube is fixed on its surface down with the rubber ball sealer.
2. built-in butterfly plate rubber ball sealer according to claim 1 is characterized in that the spherical bottom of described rubber ball sealer has the spline piece that is the cylndrical surface in the part along parallel butterfly plate direction.
3. built-in butterfly plate rubber ball sealer according to claim 1, it is characterized in that the rubber ball sealer fixed support dish in the described shutoff leading screw support tube is fixed on its surface down with the rubber ball sealer, wherein, described rubber ball sealer fixed support dish has an annular edge mouth, the top of described rubber ball sealer is provided with a "T"-shaped ring platform, be placed with the shackle of forming by two metal ring plates in the circular groove that "T"-shaped ring platform forms down, and the ring platform of rubber ball sealer is loaded in the annular edge mouth of rubber ball sealer fixed support dish, and by a plurality of screws rubber ball sealer fixed support dish and shackle is fixed into integral body together with the ring platform of the rubber ball sealer of centre.
4. built-in butterfly plate rubber ball sealer according to claim 2, it is characterized in that the rubber ball sealer fixed support dish in the described shutoff leading screw support tube is fixed on its surface down with the rubber ball sealer, wherein, described rubber ball sealer fixed support dish has an annular edge mouth, the top of described rubber ball sealer is provided with a "T"-shaped ring platform, be placed with the shackle of forming by two metal ring plates in the circular groove that "T"-shaped ring platform forms down, and the ring platform of rubber ball sealer is loaded in the annular edge mouth of rubber ball sealer fixed support dish, and by a plurality of screws rubber ball sealer fixed support dish and shackle is fixed into integral body together with the ring platform of the rubber ball sealer of centre.
5. built-in butterfly plate rubber ball sealer according to claim 1, the central region that it is characterized in that described butterfly plate is the groundwork district of butterfly plate, its cross section is the cam-shaped of symmetry, and top and bottom at the upper and lower edge of the cam body of butterfly plate to butterfly plate also are provided with guiding umbrella cover district.
6. built-in butterfly plate rubber ball sealer according to claim 2, the central region that it is characterized in that described butterfly plate is the groundwork district of butterfly plate, its cross section is the cam-shaped of symmetry, and top and bottom at the upper and lower edge of the cam body of butterfly plate to butterfly plate also are provided with guiding umbrella cover district.
7. built-in butterfly plate rubber ball sealer according to claim 3, the central region that it is characterized in that described butterfly plate is the groundwork district of butterfly plate, its cross section is the cam-shaped of symmetry, and top and bottom at the upper and lower edge of the cam body of butterfly plate to butterfly plate also are provided with guiding umbrella cover district.
8. built-in butterfly plate rubber ball sealer according to claim 4, the central region that it is characterized in that described butterfly plate is the groundwork district of butterfly plate, its cross section is the cam-shaped of symmetry, and top and bottom at the upper and lower edge of the cam body of butterfly plate to butterfly plate also are provided with guiding umbrella cover district.
9. according to the described arbitrary built-in butterfly plate rubber ball sealer of claim 1-8, it is characterized in that the top of described swingle connects the rotating power input mechanism for connecting worm-and-wheel gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703353 CN203082449U (en) | 2012-12-17 | 2012-12-17 | Rubber ball sealer with built-in butterfly-shaped board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703353 CN203082449U (en) | 2012-12-17 | 2012-12-17 | Rubber ball sealer with built-in butterfly-shaped board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203082449U true CN203082449U (en) | 2013-07-24 |
Family
ID=48828287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220703353 Withdrawn - After Issue CN203082449U (en) | 2012-12-17 | 2012-12-17 | Rubber ball sealer with built-in butterfly-shaped board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203082449U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016898A (en) * | 2012-12-17 | 2013-04-03 | 天津卓达管道机械制造有限公司 | Rubber ball sealer embedded with butterfly plate |
| RU172484U1 (en) * | 2016-11-16 | 2017-07-11 | Акционерное общество "Дальневосточная генерирующая компания" | DEVICE FOR BLOCKING A WATER FLOW |
| CN110094593A (en) * | 2019-05-05 | 2019-08-06 | 中国石油化工股份有限公司 | The quick slip casting bellows plugging technology of oil pipeline |
-
2012
- 2012-12-17 CN CN 201220703353 patent/CN203082449U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016898A (en) * | 2012-12-17 | 2013-04-03 | 天津卓达管道机械制造有限公司 | Rubber ball sealer embedded with butterfly plate |
| CN103016898B (en) * | 2012-12-17 | 2015-04-08 | 天津卓达管道机械制造有限公司 | Rubber ball sealer embedded with butterfly plate |
| RU172484U1 (en) * | 2016-11-16 | 2017-07-11 | Акционерное общество "Дальневосточная генерирующая компания" | DEVICE FOR BLOCKING A WATER FLOW |
| CN110094593A (en) * | 2019-05-05 | 2019-08-06 | 中国石油化工股份有限公司 | The quick slip casting bellows plugging technology of oil pipeline |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130724 Effective date of abandoning: 20150408 |
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| RGAV | Abandon patent right to avoid regrant |