CN205399589U - Pipeline clearance sacrifice device - Google Patents
Pipeline clearance sacrifice device Download PDFInfo
- Publication number
- CN205399589U CN205399589U CN201620186992.6U CN201620186992U CN205399589U CN 205399589 U CN205399589 U CN 205399589U CN 201620186992 U CN201620186992 U CN 201620186992U CN 205399589 U CN205399589 U CN 205399589U
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- Prior art keywords
- transmission shaft
- pipeline
- wheel
- shaft core
- drill bit
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Abstract
The utility model discloses a pipeline clearance sacrifice device, including drill bit and small -size servo motor, its characteristics are connected with enough to drive between drill bit and small -size servo motor output shaft the drill bit rotates, can make the drill bit have the necessarily flexible axle of the ability of turning round again, along radially being provided with the transmission shaft core on the motor output shaft, the gear engagement wheel is passed through at transmission shaft core both ends simultaneously, and active wheel overlaps on the transmission shaft, and driven wheel pushes up on pipe inner wall, gos forward the spring adjustment of transmission shaft core length accessible by the friction with the pipeline. So this kind of device can be worked in the pipeline of certain curvature, transmission shaft core variable -length ization on the axis direction can be worked in the pipeline of different internal diameters, it is the development of leap -type to pipeline cleaning to utilize wheel friction pipe wall to produce from the drive, still can destroy the scleroma that the plug amassed in the pipeline of bending.
Description
Technical field
This utility model belongs to pipeline cleaning machinery field, particularly relates to a kind of pipeline barrier clearing device.
Background technology
Pipeline is seen everywhere in daily life, and being not only industrial transport needs pipeline, and resident also to rely on pipeline to come delivery of fuel gas, tap water, blowdown etc..Wherein being easiest to blocking for the pipeline of blowdown, because being mingled with a lot of undissolvable solid in sewage, when sewage transport speed is relatively low or solid waste reaches certain density, blow-off line is blockage phenomenon often.
When blockage problem occurs in blow-off pipe, people can buy existing pipe-dredging medicament or device on market, and pipeline and environment can be impacted by pipe-dredging medicament, and more often blocking pipeline is removed obstacles by people by means of pipe dredging device.On market, existing pipe dredging device generally can connect control lead, by control lead, brush or scraper plate is put in pipe interior, stirs control lead and drives brush or scraper plate to rotate action, will blocking object cleaning.But this simple device cannot clear up intractable barrier, when tamper deposits after for a long time in pipeline, after other viscous solid is adhered in accumulation, barrier becomes to be difficult to clear up, the simple cleaning plant relying on simple manipulation tubular type can not realize knowing the target of barrier, and people's usual helpless cost relatively high cost when running into this situation changes pipeline.
For the pipeline being relatively large in diameter, the method that staff also can adopt high pressure water washing when clearing up tamper, this method is applicable to the pipeline that tube wall is thicker, and shortcoming is to need to prepare the hydraulic pressure facility of specialty, also can cause the further blocking of pipeline when the barrier in pipeline is more.
Utilizing drill bit to solve barrier is a good idea, but in non-rectilinear pipeline, it is difficult to ensure that drill bit will not hurt pipeline, additionally dependence control lead push-pull device at fixed can only be feasible within the scope of closer distance.
Summary of the invention
So the purpose of this utility model is to provide a kind of pipeline barrier clearing device.This device is mainly used in removing the intractable barrier in pipeline, utilizes drill bit to be drilled by tamper, it is possible to proceed to pipeline depths, and when working in crooked pipeline, drill bit still can move ahead along pipeline, and the scleroma amassed by tamper destroys, and tube wall will not be caused damage.
This utility model adopts the technical scheme that: a kind of pipeline barrier clearing device, including drill bit and Miniature servo-motors, it is characterized in that: be connected between described drill bit and Miniature servo-motors output shaft and described drill bit can either be driven to rotate, drill bit can be made again to have the flexible axle of certain cornering power；Radially outward being connected to turning-bar in the position near described drill bit along described drill bit, the support span of described turning-bar is more than the maximum outside diameter of drill bit；Described Miniature servo-motors output shaft is fixed with actively wheel, separately there are transmission shaft core and driven wheel, described transmission shaft core two ends are all with gear, the gear of one end engages with described active wheel, the gear of the other end engages with described driven wheel, described transmission shaft core extending radially outwardly along described Miniature servo-motors output shaft, with one section of spring in described transmission shaft core, by described driven wheel with on certain pressure top to inner-walls of duct to be removed obstacles.
Further, described device also includes circuit board and accumulator, electrically connects with described Miniature servo-motors；Described circuit board includes processor, relay, signal receiver, described signal receiver coordinates external remote control equipment to carry out signal transmission, after external remote control equipment sends enabling signal, the described signal receiver transmission signal of telecommunication gives described processor, described processor is by closing circuit path, control the circuit between described relay Guan Bi accumulator and Miniature servo-motors, make Miniature servo-motors startup work.
Further, described turning-bar has three, radially uniform in star along described drill bit.
Further, described transmission shaft core has at least two, symmetrical by 180 ° along described active wheel, each connection one driven wheel in each described transmission shaft core.
Further, described active wheel and driven wheel all having the gear teeth along wheel axially open, the gear at described transmission shaft core two ends is each with the gear teeth Vertical Meshing on corresponding wheel.
Further, the gear at described transmission shaft core two ends, the barrier axially each arranged by described active wheel and driven wheel medial and lateral limits, and makes gear be engaged on all the time in the gear teeth of described active wheel and driven wheel.
More specifically, annular projection is set at described active wheel inner ring, as the inner side barrier of described transmission shaft core one end gear, dividing plate is set inside the containment vessel that described Miniature servo-motors is peripheral, as the outside barrier of described transmission shaft core one end gear；
Described driven wheel is connected on a wheel set casing by axle; described wheel set casing inner ring is provided with annular projection; inner side barrier as described transmission shaft core other end gear; it is provided with dividing plate, as the outside barrier of described transmission shaft core other end gear inside the containment vessel that described wheel set casing is peripheral.
Further, pearl is turned to what the head of described turning-bar was embedded with rolling.
Further, the edge of described driven wheel adopts gum elastic.
The operation principle of this pipeline barrier clearing device is: the output shaft top of Miniature servo-motors connects flexible axle, flexible axle end connects drill bit, sheathed turning-bar simultaneously on flexible axle, the head of turning-bar is embedded with and turns to pearl, when whole device moves ahead at the pipe interior of certain curvature, pearl is turned to can first to touch inner-walls of duct and roll so that drill bit will not be against on inner-walls of duct and hurt pipeline；Flexible axle relatively will not be too thin, such drill bit can not do very significantly bending action, axis substantially along Miniature servo-motors output shaft rotates, but when running into the pipeline of certain curvature, drill bit can under the supporting role of turning-bar crooked certain angle, and without influence between Miniature servo-motors and drill bit power transmit.
The root of Miniature servo-motors output shaft is provided with actively wheel simultaneously, actively with the gear teeth on wheel, the power intake of transmission shaft core, with gear, matches with the gear teeth on the output shaft of Miniature servo-motors, during the output shaft rotation of Miniature servo-motors, drive transmission shaft core around own axis；Transmission shaft core is except power intake, and clutch end is also with the gear teeth, and the driven wheel unsettled with another engages, and unsettled driven wheel withstands on duct wall, when transmission shaft core is rotated about axis, drives unsettled driven wheel pivoting friction tube wall.It addition, local is provided with spring in transmission shaft core, when internal diameter of the pipeline diminishes, driven wheel can be oppressed transmission shaft core and be shortened, but without influence on the normal operation of drive mechanism；Gear teeth inner side and outer side on the output shaft of Miniature servo-motors is designed with protection; make the transmission shaft core will not to the inside or outside play; inside the gear teeth on driven wheel unsettled equally, outside be also provided with protection, it is ensured that transmission shaft core and the active wheel on output shaft and all remaining with unsettled driven wheel engages.Power transmission shaft core ribbon driving wheel composition driving shaft mechanism, scrubs pipeline.
The tail end of Miniature servo-motors is provided with circuit board and accumulator, and Miniature servo-motors, circuit board, accumulator are all wrapped up by housing, play a protective role.Circuit board includes processor, relay, signal receiver, external remote control equipment comprises signal projector, signal receiver and signal projector carry out signal transmission by the electromagnetic wave of certain frequency, after external remote control equipment sends enabling signal, the signal receiver transmission signal of telecommunication in circuit board is to processor, processor is by closing particular electrical circuit passage, control the circuit between relay Guan Bi accumulator and Miniature servo-motors, Miniature servo-motors is started working, drive drill bit rotates, drive turning-bar to rotate simultaneously, drive unsettled driven wheel pivoting friction tube wall, driving device rotates and moves forward.
Several respects that this utility model embodies provide the benefit that:
(1) drill bit can inclined work at an angle, it is possible to work in the pipeline of certain curvature；
(2) transmission shaft core variable-length in the axial direction, it is possible to work in the pipeline of different inner diameters；
(3) utilize gear drive friction tube wall cleverly, utilize frictional force drives to move ahead, high efficient and reliable.
So, this pipeline barrier clearing device, utilize a Miniature servo-motors, rotated by driven by quill shaft drill bit, unsettled driven wheel friction tube road wall is driven to move ahead by gear drive axis mechanism, in the pipeline of bending, still the scleroma that tamper amasss can be destroyed, and tube wall will not be caused damage, the great-leap-forward development of piping facility will be promoted, improve the economic benefit of the enterprise relevant to pipeline, all can play a role in promoting for the overall development in science and technology of society, have very important significance.
Other feature and advantage of the present utility model will be set forth in the following description, or understand by implementing this utility model.
Accompanying drawing explanation
Accompanying drawing is only for illustrating the purpose of specific embodiment, and is not considered as restriction of the present utility model, and in whole accompanying drawing, identical reference marks represents identical parts.
Fig. 1 is the back angle schematic appearance of a kind of pipeline barrier clearing device of this utility model.
Fig. 2 is the front side angle degree schematic appearance of a kind of pipeline barrier clearing device of this utility model.
Fig. 3 is Miniature servo-motors and the transmission shaft core assembling schematic diagram of a kind of pipeline barrier clearing device of this utility model.
Fig. 4 is driving sleeve and the driven wheel assembling schematic diagram of this utility model a kind of pipeline barrier clearing device.
The overall structure that Fig. 5 is a kind of pipeline barrier clearing device of this utility model disassembles schematic diagram.
Fig. 6 is the drill bit of a kind of pipeline barrier clearing device of this utility model and schematic diagram is disassembled in flexible axle assembling.
Fig. 7 is the driving sleeve of a kind of pipeline barrier clearing device of this utility model and schematic diagram is disassembled in the assembling of wheel set casing.
Fig. 8 is housing and the wheel set casing assembling structural representation of a kind of pipeline barrier clearing device of this utility model.
Fig. 9 is the Internal Small-scale servomotor structural representation of a kind of pipeline barrier clearing device of this utility model.
Figure 10 is the shell structure schematic diagram of a kind of pipeline barrier clearing device of this utility model.
The label related in figure: 1-drill bit, 2-turning-bar, 3-turn to pearl, 4-flexible axle, 5-pin, 6-case lid, 7-housing, 8-Miniature servo-motors, 9-transmission shaft core, 10-driving sleeve, the driven wheel of 11-, 12-spring, 13-wheel set casing, the fixing cap of 14-, 15-circuit board, 16-accumulator, 17-screw, 18-nut, 19-actively wheel, 20-strip bulge.
Detailed description of the invention
Below with reference to drawings and Examples, this utility model one pipeline barrier clearing device is described in further detail.
As shown in Figure 1 and Figure 2, a kind of pipeline barrier clearing device, say more specificly, mainly include drill bit 1, turning-bar 2, flexible axle 4, Miniature servo-motors 8, transmission shaft core 9, the actively parts such as wheel 19, driven wheel 11.Wherein, as shown in Figure 6, drill bit 1 head is with drill, and afterbody is with little axle；Having at least two to become in 180 ° symmetrical turning-bar 2(figure is three) it is fixed as one (turning-bar 2 can be one-body molded with axle sleeve) by same axle sleeve, and preferably three turning-bars 2 are uniform along axle sleeve circumference；Axle sleeve with turning-bar 2 is enclosed within the little axle of drill bit 1 afterbody, is connected by pin；Turning-bar 2 is arranged on drill bit 1 afterbody, turns to pearl 3 to be inlaid in the ball bowl of turning-bar 2 head, turns to pearl 3 can roll in ball bowl.Turning-bar 2 is overhanging along the radial direction of little axle; the support span of turning-bar 2 is bigger; maximum outside diameter more than drill bit; drill bit 1 is supported protection interior; so when whole device moves ahead in the pipeline of certain curvature; turn to pearl 3 can take the lead in touching inner-walls of duct and rolling so that drill bit 1 will not be against on inner-walls of duct and hurt pipeline.
Drill bit 1 and Miniature servo-motors 8 are connected by flexible axle 4.The little axle of drill bit 1 afterbody is a hollow axle, and the axle sleeve on turning-bar 2 is enclosed within the outside of little axle, and flexible axle 4 then injects portion in little axle, and three can connect commonly through pin 5.Or, turning-bar 2 is connected on flexible axle 4 by axle sleeve, and flexible axle 4 is connected directly between can also on the little axle of drill bit 1.The diameter of flexible axle 4 will not be too thin relative to the distance between drill bit 1 and Miniature servo-motors 8 output shaft end, such drill bit 1 can not do action of very significantly turning round, axis substantially along Miniature servo-motors 8 output shaft rotates, but when running into the pipeline of certain curvature, drill bit 1 can under the supporting role of turning-bar 2 crooked certain angle, and without influence between Miniature servo-motors 8 and drill bit 1 power transmit.
In like manner, the tail end of flexible axle 4 is connected to the output shaft top of Miniature servo-motors 8 by another pin 5.
As it is shown in figure 9, the output shaft of Miniature servo-motors 8 is fixed a sheathed active wheel 19, the end face of active wheel 19 is provided with the gear teeth along wheel axially open；The rear end of Miniature servo-motors 8 connects circuit board 15 and accumulator 16, and circuit board 15 includes the built-up circuits such as processor, relay, signal receiver, on the one hand for receiving the instruction of external remote control equipment, on the other hand for start and stop Miniature servo-motors 8.Further, as shown in Fig. 5, Figure 10, housing 7 is fixed on the periphery of Miniature servo-motors 8, circuit board 15, accumulator 16 by screw 17, Miniature servo-motors 8, circuit board 15, accumulator 16 is all wrapped up, plays a protective role.
As shown in Fig. 3, Fig. 4, Fig. 7, the two ends of transmission shaft core 9 are all with gear, the gear of one end and actively wheel 19 Vertical Meshing；The gear of the other end and driven wheel 11 Vertical Meshing.Driven wheel 11 also has the gear teeth along wheel axially open the same as active wheel 19, the gear of transmission shaft core 9 other end and gear teeth meshing on wheel 11.Such transmission shaft core 9 has several, it is at least 180 ° symmetrical two piece (being three in figure), connect a driven wheel 11 respectively, form several groups of driving shaft mechanisms extended radially outwardly along motor, it is preferred that three groups of circumferences being distributed in motor output shaft.So when electric machine rotation, transmission shaft core 9 one side rotates around own axes under the drive of motor output shaft, and another side drives again driven wheel 11 to roll, driven wheel 11 rolling friction pipeline.
Further, a section of transmission shaft core 9 is spring 12, and the length of such transmission shaft core 9 can convert, and to adapt to the pipeline of different inner diameters, when internal diameter of the pipeline diminishes, driven wheel 11 can oppress compression spring, but without influence on the normal operation of transmission shaft core 9.Also further, a part for transmission shaft core 9 can stretch in driving sleeve 10, and driving sleeve 10 protects transmission shaft core 9 so that it is may only move axially along driving sleeve 10.Also further, as shown in Fig. 4, Fig. 9, inside the gear teeth of the active wheel 19 on Miniature servo-motors 8 output shaft, being provided with annular projection, as barrier, restriction transmission shaft core 9 is slided to the inside.
Further; arranging case lid 6 in active wheel 19 end, case lid 6 is front loaded from device, coordinates, by Screw, the containment vessel that composition is complete with housing 7; on the one hand active wheel 19 and transmission shaft core 9, spring 12 are protected inside, play restriction degree of freedom and protective effect；Being also provided with dividing plate on the other hand inside containment vessel, restriction transmission shaft core 9 is slided laterally.
Further, as shown in Figure 7,8, in driven this one end of wheel 11, it is provided with wheel set casing 13 and fixing cap 14, wheel set casing 13 circle centre position protrudes central shaft, and central shaft is through the hole at driven wheel 11 center so that driven wheel 11 can central axis on wheel set casing 13, the outermost of central shaft installs nut 18, is limited on center shaft by driven wheel 11.Fixing cap 14 is enclosed within driving sleeve 10; complete preservation shell is formed by Screw and wheel set casing 13; drive mechanism between driving sleeve 10 and driven wheel 11 is protected; fixing cap 14 top is provided with projecting shaft; it is internal that projecting shaft stretches into housing 7 so that driven wheel 11 will not rotate around driving sleeve 10.Also further; inner ring at wheel set casing 13 is also equipped with annular projection as barrier; it is also equipped with dividing plate inside fixing cap 14; the containment vessel of fixing cap 14 and wheel set casing 13 composition has interior outside barrier; the axial both sides of the gear of transmission shaft core 9 lower end are limited, it is prevented that gear departs from driven wheel 11.
Also further, the periphery of driven wheel 11 adopts high elastic rubber tire so that the frictional force between driven wheel 11 and inner-walls of duct is sufficiently large, and after drill bit 1 starts rotation, driven wheel 11 will not skid with inner-walls of duct.
Also further, as shown in Figure 9, Figure 10, housing 7 is provided with several strip bulge 20, and screw 17, through the hole on housing 7, props up strip bulge with fixing Miniature servo-motors 8.
Circuit board 15 includes processor, relay, signal receiver, external remote control equipment comprises signal projector, signal receiver and signal projector carry out signal transmission by the electromagnetic wave of certain frequency, after external remote control equipment sends enabling signal, the signal receiver transmission signal of telecommunication in circuit board 15 is to processor, processor is by closing particular electrical circuit passage, control the circuit between relay Guan Bi accumulator 16 and Miniature servo-motors 8, Miniature servo-motors 8 is started working, drill bit 1 is driven to rotate, turning-bar 2 is driven to rotate, drive driven wheel 11 to rotate simultaneously, whole device relies on the frictional force with tube wall to rotate and moves forward.
The above; it is only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; the change that can readily occur in or replacement, all should be encompassed within protection domain of the present utility model.
Claims (9)
1. a pipeline barrier clearing device, including drill bit (1) and Miniature servo-motors (8), it is characterized in that: be connected between described drill bit (1) and Miniature servo-motors (8) output shaft and described drill bit (1) can either be driven to rotate, drill bit (1) can be made again to have the flexible axle (4) of certain cornering power；
Radially outward being connected to turning-bar (2) in the position near described drill bit (1) along described drill bit, the support span of described turning-bar (2) is more than the maximum outside diameter of drill bit；
Described Miniature servo-motors (8) output shaft is fixed with actively wheel (19), separately there are transmission shaft core (9) and driven wheel (11), described transmission shaft core (9) two ends are all with gear, the gear of one end engages with described active wheel (19), the gear of the other end engages with described driven wheel (11), described transmission shaft core (9) extending radially outwardly along described Miniature servo-motors (8) output shaft, with one section of spring (12) on described transmission shaft core (9), by described driven wheel (11) with on certain pressure top to inner-walls of duct to be removed obstacles.
2. pipeline barrier clearing device according to claim 1, it is characterised in that: described device also includes circuit board (15) and accumulator (16), electrically connects with described Miniature servo-motors (8)；Described circuit board (15) includes processor, relay, signal receiver, described signal receiver coordinates external remote control equipment to carry out signal transmission, after external remote control equipment sends enabling signal, the described signal receiver transmission signal of telecommunication gives described processor, described processor is by closing circuit path, control the circuit between described relay Guan Bi accumulator (16) and Miniature servo-motors (8), make Miniature servo-motors (8) start work.
3. pipeline barrier clearing device according to claim 1, it is characterised in that: described turning-bar (2) has three, radially uniform in star along described drill bit (1).
4. pipeline barrier clearing device according to claim 1, it is characterised in that: described transmission shaft core (9) has at least two, symmetrical by 180 ° along described active wheel (19), each upper driven wheel of each connection one (11) of described transmission shaft core (9).
5. the pipeline barrier clearing device according to claim 1 or 4, it is characterized in that: described active wheel (19) and all have the gear teeth along wheel axially open on driven wheel (11), the gear at described transmission shaft core (9) two ends is each with the gear teeth Vertical Meshing on corresponding wheel.
6. the pipeline barrier clearing device according to claim 1 or 4, it is characterized in that: the gear at described transmission shaft core (9) two ends, the barrier axially each arranged by described active wheel (19) and driven wheel (11) medial and lateral limits, and makes gear be engaged on all the time in the gear teeth of described active wheel (19) and driven wheel (11).
7. the pipeline barrier clearing device according to claim 1 or 4; it is characterized in that: at described active wheel (19) inner ring, annular projection is set; inner side barrier as described transmission shaft core (9) one end gear; dividing plate is set inside the containment vessel that described Miniature servo-motors (8) is peripheral, as the outside barrier of described transmission shaft core (9) one end gear；
Described driven wheel (11) is connected on a wheel set casing (13) by axle; described wheel set casing (13) inner ring is provided with annular projection; inner side barrier as described transmission shaft core (9) other end gear; it is provided with dividing plate, as the outside barrier of described transmission shaft core (9) other end gear inside the containment vessel that described wheel set casing (13) is peripheral.
8. the pipeline barrier clearing device according to claim 1 or 3, it is characterised in that: what the head at described turning-bar (2) was embedded with rolling turns to pearl (3).
9. the pipeline barrier clearing device according to claim 1 or 4, it is characterised in that: the edge of described driven wheel (11) adopts gum elastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620186992.6U CN205399589U (en) | 2016-03-11 | 2016-03-11 | Pipeline clearance sacrifice device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620186992.6U CN205399589U (en) | 2016-03-11 | 2016-03-11 | Pipeline clearance sacrifice device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205399589U true CN205399589U (en) | 2016-07-27 |
Family
ID=56441146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620186992.6U Withdrawn - After Issue CN205399589U (en) | 2016-03-11 | 2016-03-11 | Pipeline clearance sacrifice device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205399589U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604146A (en) * | 2016-03-11 | 2016-05-25 | 厦门精图信息技术有限公司 | Pipeline obstacle removing device |
| CN106505483A (en) * | 2016-12-21 | 2017-03-15 | 枣庄度秘信息科技有限公司 | A kind of power pipe threading apparatus |
| CN107059710A (en) * | 2017-04-20 | 2017-08-18 | 中广核工程有限公司 | A kind of taking and discharging tunnel Hand scarf device and method |
| CN107059711A (en) * | 2017-04-20 | 2017-08-18 | 中广核工程有限公司 | A kind of taking and discharging tunnel Hand scarf device and method |
| CN107327014A (en) * | 2017-07-24 | 2017-11-07 | 金中天水利建设有限公司 | A kind of anti-block apparatus of the pre-buried pipeline of water conservancy |
| CN108277860A (en) * | 2018-02-25 | 2018-07-13 | 杨立 | A kind of working method of kitchen pipeline blockage-clearing device |
| CN108331104A (en) * | 2018-02-25 | 2018-07-27 | 杨立 | A kind of kitchen pipeline blockage-clearing device |
| CN114319568A (en) * | 2021-12-10 | 2022-04-12 | 华中科技大学 | Pipeline dredging equipment |
-
2016
- 2016-03-11 CN CN201620186992.6U patent/CN205399589U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604146A (en) * | 2016-03-11 | 2016-05-25 | 厦门精图信息技术有限公司 | Pipeline obstacle removing device |
| CN105604146B (en) * | 2016-03-11 | 2017-07-07 | 厦门精图信息技术有限公司 | A kind of pipeline barrier clearing device |
| CN106505483A (en) * | 2016-12-21 | 2017-03-15 | 枣庄度秘信息科技有限公司 | A kind of power pipe threading apparatus |
| CN107059710A (en) * | 2017-04-20 | 2017-08-18 | 中广核工程有限公司 | A kind of taking and discharging tunnel Hand scarf device and method |
| CN107059711A (en) * | 2017-04-20 | 2017-08-18 | 中广核工程有限公司 | A kind of taking and discharging tunnel Hand scarf device and method |
| CN107059710B (en) * | 2017-04-20 | 2019-03-05 | 中广核工程有限公司 | A kind of taking and discharging tunnel Hand scarf device and method |
| CN107327014A (en) * | 2017-07-24 | 2017-11-07 | 金中天水利建设有限公司 | A kind of anti-block apparatus of the pre-buried pipeline of water conservancy |
| CN108277860A (en) * | 2018-02-25 | 2018-07-13 | 杨立 | A kind of working method of kitchen pipeline blockage-clearing device |
| CN108331104A (en) * | 2018-02-25 | 2018-07-27 | 杨立 | A kind of kitchen pipeline blockage-clearing device |
| CN114319568A (en) * | 2021-12-10 | 2022-04-12 | 华中科技大学 | Pipeline dredging equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160727 Effective date of abandoning: 20170707 |
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| AV01 | Patent right actively abandoned |