CN1100009A - Descaling, dredging and cleaning apparatus for pipeline - Google Patents
Descaling, dredging and cleaning apparatus for pipeline Download PDFInfo
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- CN1100009A CN1100009A CN 93117233 CN93117233A CN1100009A CN 1100009 A CN1100009 A CN 1100009A CN 93117233 CN93117233 CN 93117233 CN 93117233 A CN93117233 A CN 93117233A CN 1100009 A CN1100009 A CN 1100009A
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- flexible axle
- pipeline
- dredging
- descaling
- cleaning apparatus
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Abstract
The dredging apparatus for pipeline comprises drawing unit for moving working flexible axle back and forth in pipeline, movable power unit, metallic drive and working flexible axles with plastic jacket, cutting tools and anti-rotating end of working flexible axle, and cleaning and expanding device for cooperation. It can remove the scale layer on inner surface of underground pipeline with bent with high productivity and is suitable for the pipeline in different diameters.
Description
A kind of device that is used for underground piping scale removal, cleaning and mediation.It is long that this complete equipment can be used in particular for dredging ten meters of numbers, and have and turn round and the serious underground piping of fouling, is suitable for diameter and is 50 millimeters to 500 millimeters underground piping.
Known pipe-dredging facility generally are made up of power set, flexible axle and different cutters, drive different cutters with flexible axle, remove the fouling on the tube wall.The advancing of flexible axle is to finish by the device of facility inside.Since the flexible axle front end with cutter head be subjected to the restriction of pipe diameter and flexible axle enter pipeline dark after, frictional force increases between tube wall and the flexible axle, the effective power that acts on cutter head is just lower, so descale effect is just poor.Other has its flexible axle of a kind of pipeline cleaning to have sheath, is not subjected to the friction of tube wall to protect flexible axle, and power is also big.But its motor can not speed change, flexible axle send that main the distance that enters pipeline is limited by artificial to, its scale removal is limited in scope.Therefore known drain cleaner is not because the cutter head of axle front end has effectively to bring into play the shear action of cutter, and its scale removal, mediation effect are subjected to certain restriction.
Purpose of the present invention, inventing the road scale removal of a kind of collector, cleaning and mediation exactly is the apparatus of one.It can be applicable to the pipe diameter scope of broad.It is serious and have the ten meters long pipe-dredgings of number that turn round to can be used for fouling, make flexible axle with cutter head can the most effective playing a role, and pipe blow-through simultaneously.
Descaling, dredging and cleaning apparatus for pipeline has and is used for drawing the work flexible axle along the hauling power device that seesaws in the pipeline; Inside be equipped with can three kinds of speed of conversion motor, the motor front end is equipped with the coaxial available manual overload-release clutch of regulating and is used for the mobile power unit that the power transmission shaft of transferring power constitutes, and has the driving snake and the work flexible axle of the metal hose of plastic sheath; On the work flexible axle, have a string different cutter; Work flexible axle front end is equipped with the anti-rotary head that prevents that haulage cable from rotating; Mobile power unit is decided the flexible pipe mode with driving snake for the pin of pegging graft and is connected.Driving snake connects with the work flexible axle by engage thread.Broad adopts the scalene cone locking method to be fixed on the arbitrary position of work flexible axle.Its work flexible axle front connects with the pocket knife tool threadably.Peg graft with the pocket knife tool and connect in the first limit of anti-rotation, with steel wire rope grafting connect on one side.Steel wire rope is fixed on the cylinder of hauling power device inside.
Hauling power device is made of through reduction box and the cylinder that the secondary gear deceleration constitutes the low speed torque motor.On the final stage gear hub splines is housed, its inside is equipped with one and had not only been rotated with cylinder but also cooperate movably splined shaft with the spline axle sleeve, and splined shaft is a slim-lined construction, and the middle part has long square axis, straight cutting is in the cover of the four directions of cylinder, and the splined shaft other end is equipped with drawing handle.Cylinder is an aluminium alloy castings, and a side has been fixed the thin gear of a hand remote control system.
The delivery of band overload-release clutch, the motor shaft end cover is by the key cover, on interior friction plate is arranged, outside friction disc is contained in and constitutes friction pair on the clutch sleeve, thrust bearing on the platen is pressed on the interior friction plate, another set of thrust bearing is on loose collar, by being located at the coaxial threaded adjustment that is installed in the manual control adjustment wheel before the housing, being pressed in the drive link that distributes on the housing realizes being contained in compressing of outside friction disc on the clutch sleeve, some grooves are arranged on the clutch sleeve end face, trundle is housed in the groove, spring is contained in the circular hole of power transmission shaft one side and withstands trundle, by fluting direction difference, can make the unidirectional or two-way rotation of output shaft.
Driving snake is to save the connection of flexible axle flexible pipe by one to constitute.There is a can flexible pipe foremost, and its end face is fluted, and swivel becket inserts into the inner, and friction pad and elastic expansion-sleeve are sealed in people's swivel becket, and encloses a certain amount of lubricating grease, and elastic expansion-sleeve is pressed on the rotating shaft by round nut, constitutes mechanical sealing.
The work flexible axle is a spring steel wire coiling number meter long elasticity flexible axle, the flexible shaft end crimping is all used at two ends, front end is equipped with a logical little broad of screwed hole of band, stud with a slice, two or three, four carbide alloy on it, a cover two covers or three cover reaming cutters are equipped with in other position of work flexible axle, it with the scalene cone tensioner on the flexible axle of working.
Broad has the cutter hub of through-hole form, two ends are scalene cone, stud with strip carbide alloy or ball dentation carbide alloy on its external diameter, several eccentric orfices are arranged on the cutter hub circumference, the cutter hub two ends are respectively by three lock sleeves that constitute, housing screw is arranged on it, cutter hub and work flexible axle are tightened together.
Anti-rotary head, turning cylinder link to each other with procapsid by lining, thrust bearing, rolling bearing, its structure band one step optical axis, and front end has aperture, and the housing front end has jack and the other end is threaded, and connects also glue seals with procapsid.The intracavity space that forms will inject a certain amount of lubricating grease.
The necessary condition of implementing the traction reaming is out that aperture or guiding steel wire rope penetrate.Two kinds of methods are arranged: one, establish a soft axle that can connect lengthening at the driving snake front end, flexible axle coiling direction is with outputting power direction of rotation unanimity, a monolithic primary alloy cutter head is equipped with in the front: they are two years old, be with high pressure (or middle pressure) scavenging pump device, adorn one at the flexible pipe front end and have the special shower nozzle of regurgitating structure.The sprayer body of regurgitating head has the inner chamber of a slyness, the back is three or three above apertures circumferentially, and be an angle with axis, also with the axle center one eccentric amount e is arranged, the sprayer body front also has an aperture, and its diameter can not be greater than the diameter of back spray aperture, the hold-down nut that links with sprayer body is with thread connection, its middle part is a through hole, and end face is a burnishing surface, becomes end face seal by filling poly-phenyl tetrafluoride pad with the flexible connection capitiform.The sprayer body cone angle is not more than 60 °.
Descaling, dredging and cleaning apparatus for pipeline of the present invention has following good effect.
The equipment of manufacturing of the present invention is dark 2 meters of distance ground surfaces, 500 millimeters of pipe diameters, and scale removal operation in long 60 meters the subsoil drain was finished the descaling, dredging cleaning task in 4 hours, made draining not contain dirt.This equipment of utilization front refinement flexible axle is opened pinhole test, pipe diameter is Φ 50～Φ 150mm, and has 3 90 ° to bend, long 50 meters, low speed in the utilization (low speed 720r/min, middling speed 1420r/min) uses 3 15 meters Great Wall Software's axles aperture in half an hour to get out.Utilize portable scavenging pump, middle pressure (5MPa), preceding wearing regurgitated head, and at Φ 100mm underground piping, long 20 meters scale removal operations can be finished mediation and clean in 13 minutes.Other does a test, 150 millimeters cast iron pipes of Φ are had two 90 ° bend, long 20 meters, imbed underground, fill up cement mortar in the cast iron pipe, indivedual sections are given and are left aperture, after mortar solidifies, open the orifice method perforate with flexible axle after, traction then, adopt middling speed, (1420r/min, 2910r/min) reaming rotating speed at a high speed, the average 500mm/min of hauling speed is approximately with just finishing the descaling, dredging operation in 38 minutes.After utilize the scavenging pump band to regurgitate head to clean, clean up very soon in the pipeline.Regurgitating a perforate test with the scavenging pump band is to fill sand in Φ 80 internal diameter pipelines, hand punning, and long 8 meters of pipeline, perforate has been used 10 minutes, and sand has been arranged in will managing substantially.Another test is that mortar is filled up in the inside with 20 meters of 150 millimeters cast iron pipe ranges of Φ, and native stone (the stone granularity is not more than 2cm) is pressed (5MPa) perforate in using, and finishes the perforate operation half an hour.
According to individual schematic structure specific embodiments of the present invention are described below:
Fig. 1 is the high-pressure wash system schematic.
Wherein: (1) is the high-pressure wash pump, high-pressure delivery flexible pipe when (2), and (3) are to regurgitate an assembly.Portable high-pressure wash pump (1) through delivery hose (2) with regurgitate an assembly (3) and be connected, water under high pressure from (1) output, through (2), (3), be sprayed on pipeline the place ahead on the one hand, smash and peel off the dirt in shower nozzle the place ahead, in pipeline, leave aperture, regurgitate simultaneously around the inwall of pipeline, form reaction force, because the effect of this reaction thrust, make regurgitate the head (3) be with flexible pipe (2) to put in to the pipeline depths, in the pipeline that is blocked, leave aperture.Simultaneously, cleaned the pipeline of having dredged.
Fig. 2 is the system architecture schematic diagram of eliminating sludge in pipe, mediation, cleaning equipment.
As shown in the figure: portable main power plant (6) is made of the power delivery (8) of the whole band of electric control box (5), control panel (4), multispeed electric machine (7) and available hand adjustment overload-release clutch.Control panel is used for controlling the duty of multispeed electric machine and the duty of traction case (9).Flexible axle flexible pipe (17) is connected with main power plant with bearing pin, and it saves by two and combines, and under the condition that flexible axle seals in flexible pipe, flexible axle is entered under the clear condition of the very dark distance of pipeline reduce friction.When the front end in (17) had work flexible axle (16) to need out aperture in pipeline, the flexible axle front had a small bit tool (14) and realizes advancing with low speed or middling speed.It advances is by screw pair of formation between flexible axle rotation back and the fouling, and the effect by spiral advances flexible axle to advance then, can enter the very dark place of pipeline.When needs drew, the front end small bit tool (14) of work flexible axle was just as the traction fulcrum.And refilled reaming at other position of flexible axle with cutter head (15).(15) can be one, also can be a plurality ofly at (14) front end two or more heads of anti-rotation under water (13) to be housed earlier and to link to each other with haulage cable (12), constitutes trailer system by traction case (9).(13) effect is that steel wire rope also rotates, and makes steel wire rope only play the pulling force effect, and is not subjected to turning moment when preventing that cutter and flexible axle choosing from changeing.Traction case (9) is made up of torque motor (10) and deceleration device (11) and institutes such as cylinder, handle.
Fig. 3 is the delivery of band overload-release clutch.
As shown in the figure, multispeed electric machine (7) is connected with its end face of housing (18), a key cover (19) is arranged in the motor shaft end, interior friction plate (20) is arranged (19), outside friction disc (21) constitutes friction pair, they are contained on the clutch sleeve (22) together, platen (23) is connected with housing by bolt (24), the thrust bearing (25) that is installed on the platen (23) is close on (20), (22) thrust bearing on (26) is under the effect of moving back and forth of loose collar (27), can compress or disengaging friction sheet (20), (21), the activity of (27) is by spring (28) and is distributed in the drive link (29) on the housing (18) and adjust takes turns (30) and realize.Lock-screw (31) can be regulated the duty of clutch and it is locked under this state.If have on (22) upper surface in the bar groove, trundle (32) is housed in the groove, they hold out against in groove (32) under the effect of spring (33), by the direction difference of fluting, just can realize that the unidirectional or two-way of output shaft rotated.With the cubic spindle nose on the flexible axle (17), plug in the cubic hole of turning cylinder (34) during work, the rotation torque of flexible axle (16) has just outputed to next part by this overload-release clutch safety.
Fig. 4 is a flexible axle drive system structure schematic diagram.
Transmission of power when as shown in the figure, the present invention works is that the flexible axle (35) that is mounted in the flexible pipe (17) is realized.In the outside of flexible pipe (17) one deck plastic sheath (36) is arranged.Front end in (35) has a mechanical seal structure, and shell (37) front is fluted, and the front by swivel becket (39) extend in the groove, forms labyrinth sealing.Friction pad (39) is enclosed in the swivel becket with elastic piston ring (40), wherein encloses a certain amount of lubricating grease.Swivel becket is pressed on the rotating shaft (45) by round nut (41), open washer (42).Hose joint (43) and shell have rolling bearing (44) by being threaded togather in shell (37), to reduce the frictional dissipation that rotating shaft (45) is born.Front end in (45) has internal thread, is used for the flexible axle of working (16) or directly is connected with cutter head.Work flexible axle (16) is the long spring steel wire axle of radical rice, and all there is flexible shaft end (46) at its two ends, and the front end of flexible axle can connect a little reaming cutter (14) that has logical screw thread.(14) be made up of a slice, two, three or four carbide chips (47), the middle part of work flexible axle (16) is equipped with the lock sleeve (48) that can rise, by screw (49) with the arbitrary position of cutter hub (52) locking at flexible axle.Cutter hub (52) two ends are scalene cone (53), under housing screw (49) effect, and the lock sleeve of both sides (48) cutter hub that locked.Lock sleeve is made of three conical surfaces, and cutter hub is locked on any position of (16).On same work flexible axle (16), can lock several cutter hubs simultaneously like this, to bring into play the shear action of cutter head to greatest extent.Be connected with draw-gear (9) by drawing head (54), cutter head can with different rotating speeds, make cutter hub scale removal ability increase greatly under the most effective tractive force effect.Several eccentric orfices (50) are arranged on the circumference of cutter hub (52), make cutter hub under different speed conditions, produce certain centrifugal force, stud with carbide chip (51) on the cutter hub, (51) can be under the speed change rotating condition further reaming, the dirt mediation of different tube diameters is clean.(52) structure has two kinds of forms; A kind of is to be covered with spherical tooth on the cutter hub, the hard and crisp fouling that comes off of vibration easily.Another kind is to stud with strip reaming blade on the cutter hub, can directly cut to remove dirt the fouling on the duct wall, and such structure of the cutter body can make the cutter head of reduced size, cuts bigger pipe scale.
Fig. 5 is the structural representation of anti-rotation head under water.
As shown in the figure, the anti-rotation head is the connector that is connected between drawing head and the steel cable termina under water.Its effect is the rotation of steel wire rope when preventing flexible axle work, and bears certain pulling force.Turning cylinder (55) is by lining (56), and rolling bearing (57), dottle pin (58), thrust bearing (59) link to each other with procapsid (60), and (60) link to each other with housing (61) by screw thread.Inject lubricating grease in the inner chamber that (60), (56) form, the minim gap between turning cylinder (55) and the lining is only arranged in the chamber, extraneous water just is difficult for entering in the cavity.When in pipeline, working, to connect anti-rotation head such more than two on the steel wire rope at least, rotate effectively to prevent steel wire rope.
Fig. 6 is the structural representation of draw-gear.
As shown in the figure, it is a square box shape structure, and torque motor (10), decelerator (62) are equipped with in inside, constitutes retarding moment output.Slow down by secondary gear (63), (64), moment reaches hub splines (65), (65) can under the effect of bearing holder (housing, cover) (66) and (67), rotate, its inside is a Hua Jian hole, make spend strong spool (68) that are mated, by outwards pulling out of handle (69), make (68) and (65) rotation that mutually combines.(68) there is long square axis at middle part, is inserted on the four directions cover (71) on the cylinder (70) always, and the rotation of (72) has just driven the rotation of (70), has then driven advancing of haulage cable (12).As figure, when handle (69) when being in shown position, splined shaft breaks away from Hua Jiankong, and cylinder does not change.At this moment also can with manual rocking gear axle (72),, drive cylinder (70) and rotate, but also haulage cable advance from the hand crank (73) on the gear shaft (72) that is inserted in the cylinder opposite side by (74) gear.Dividing plate (75) is arranged, to prevent the steel wire rope cylinder that comes off between traction electric machine and (70).
Fig. 7 regurgitates the header structure schematic diagram.
As shown in the figure, sprayer body (76), spray orifice (77), hold-down nut (78) are regurgitated head with connecting axle (79), pivoting friction pad (81) formation that traveling nut (80) glueds joint one.Joint (82) is housed in high-pressure hose (2), link together by fixing card (83) and traveling nut (80) and connecting axle (79), hold-down nut (78) front that is fixed on the sprayer body is a burnishing surface, form end face seal by filling between the poly-phenyl tetrafluoride pad, under the effect of highly pressurised liquid, spray highly pressurised liquid backward by the aperture more than three (77) that is distributed on the sprayer body (76), form certain thrust, advance along duct orientation thereby drive flexible pipe.Regurgitating between the center in hole and axis has an eccentric amount e and an operating angle α, by regulating different e and α, shower nozzle is advanced in different pipelines.The shower nozzle front end also has an aperture φ d, and it can be destroyed the dirt of shower nozzle front end under the effect of water under high pressure.But the diameter of this aperture can not be greater than the diameter of the spray orifice (77) of back.Rear side at sprayer body has a uniform groove (84) to be used for blowdown.When needs draw, in regurgitating an assembly (3), import water under high pressure with high-pressure wash pump (1) by delivery hose (2), this water under high pressure, a part sprays from the front end centre bore, smash or vibrate the dirt that peels off front end, form aperture, another part water ejects from the apopore of regurgitating a rear end, make and regurgitate head and obtain one powerful active force, force to promote to regurgitate headband and carrier pipe (2) and advance along duct orientation together, so just in the pipeline that is blocked, left one and drawn aperture, haulage cable is by behind this aperture, be connected with draw-gear, the pulling steel wire rope advances, and has just realized the traction mediation effect in the pipeline.
Claims (8)
1, a kind of descaling, dredging and cleaning apparatus for pipeline, form with different cutters by power set and flexible axle, the invention is characterized in: described descaling, dredging and cleaning apparatus for pipeline has and can be used to draw the hauling power device of work flexible axle before and after in the pipeline, inside be equipped with can three kinds of speed of conversion motor, the mobile power unit that the motor front end is equipped with the coaxial available manual overload-release clutch of regulating and can be used to the power transmission shaft formation of transferring power, the driving snake and the work flexible axle that have the metal hose of plastic sheath, on the work flexible axle, have a string different cutter, work flexible axle front end is equipped with the anti-rotary head that prevents that haulage cable from rotating, mobile power unit is decided mode with driving snake for the pin of pegging graft and is connected, work flexible axle and driving snake pass through thread connection, cutter is to adopt inclined-plane locking (flexible axle middle part) and threaded connection mode with the work flexible axle, peg graft with the work flexible axle and connect in the first limit of anti-rotation, pegging graft with steel wire rope on one side connects, and steel wire rope is fixed on the cylinder of hauling power device inside.
2, descaling, dredging and cleaning apparatus for pipeline according to claim 1, it is characterized in that: described hauling power device is by the low speed torque motor, the reduction box and the cylinder that constitute through the secondary gear conversion constitute, on the final stage gear hub splines is housed, its inside has one not only to rotate together with cylinder but also cooperate movably splined shaft with the spline axle sleeve, splined shaft is a slim-lined construction, the middle part has long square axis, straight cutting is in the cover of the four directions of cylinder, the splined shaft other end is equipped with drawing handle, cylinder is an aluminium alloy castings, and a side has been fixed the thin gear of a hand remote control system.
3, descaling, dredging and cleaning apparatus for pipeline according to claim 1, it is characterized in that: the delivery of described band overload-release clutch, motor shaft end is with the key cover, on interior friction plate is arranged, outside friction disc is contained in and constitutes friction pair on the clutch sleeve, thrust bearing on the platen is pressed on the interior friction plate, another set of thrust bearing is on loose collar, by being located at the coaxial threaded adjustment that is installed in the manual control adjustment wheel before the housing, being pressed in the drive link that distributes on the housing realizes being contained in compressing of outside friction disc on the clutch sleeve, some grooves are arranged on the clutch sleeve end face, trundle is housed in the groove, spring is contained in the circular hole of power transmission shaft one side and withstands trundle, by fluting direction difference, can make the unidirectional or two-way rotation of output shaft.
4, descaling, dredging and cleaning apparatus for pipeline according to claim 1, it is characterized in that: described driving snake is one to save the flexible axle flexible pipe and connect and to form, there is a can flexible pipe foremost, its end face is fluted, swivel becket inserts into the inner, and friction pad and elastic expansion-sleeve are enclosed in the swivel becket, and encloses a certain amount of lubricating grease, soft elastic expansion-sleeve is pressed on the rotating shaft by round nut, constitutes mechanical sealing.
5, descaling, dredging and cleaning apparatus for pipeline according to claim 1, it is characterized in that: described work flexible axle is a spring steel wire coiling number meter long elasticity flexible axle, the flexible shaft end crimping is all used at two ends, front end is equipped with a logical little broad of screwed hole of band, stud with a slice, two, three or four carbide alloy on it, a cover two covers three cover reaming cutters are equipped with at other position of work flexible axle, it with the scalene cone tensioner on the flexible axle of working.
6, descaling, dredging and cleaning apparatus for pipeline according to claim 5, it is characterized in that: the broad that installs on the described work flexible axle has the cutter hub of through-hole form, its two ends are scalene cone, stud with strip carbide alloy or ball dentation carbide alloy on its external diameter, several eccentric orfices are arranged on the cutter hub circumference, there is housing screw at the cutter hub two ends respectively by three lock sleeves that constitute on it, cutter hub and work flexible axle are tightened together.
7, descaling, dredging and cleaning apparatus for pipeline according to claim 4, its feature is at hand: the described anti-rotary head that prevents that haulage cable from rotating, the anti-rotary head that turning cylinder rotates by haulage cable, turning cylinder links to each other with procapsid by lining, thrust bearing, rolling bearing, its structure band one step optical axis, front end has aperture, and the housing front end has jack, and the other end is threaded, and connects with procapsid and the glue envelope.The intracavity space that forms will inject a certain amount of lubricating grease.
8, implement the corollary apparatus of descaling, dredging and cleaning apparatus for pipeline as claimed in claim 1, it is characterized in that: when implementing traction and opening aperture guiding steel wire rope and penetrate, adopt high pressure (middle pressure) scavenging pump device, adorn one at the flexible pipe front end and have the special shower nozzle of regurgitating header structure, sprayer body has the inner chamber of a slyness, the back is three or three above apertures circumferentially, and be an angle with axis, also one eccentric amount e is arranged with the axle center, the sprayer body front also has an aperture, its diameter is less than the diameter of back spray aperture, the hold-down nut that links with sprayer body is with thread connection, and its middle part is from a through hole, and end face is a burnishing surface, become end face seal by filling poly-phenyl tetrafluoride pad with the flexible connection capitiform, the sprayer body cone angle is less than 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93117233 CN1100009A (en) | 1993-09-06 | 1993-09-06 | Descaling, dredging and cleaning apparatus for pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93117233 CN1100009A (en) | 1993-09-06 | 1993-09-06 | Descaling, dredging and cleaning apparatus for pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1100009A true CN1100009A (en) | 1995-03-15 |
Family
ID=4991939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93117233 Pending CN1100009A (en) | 1993-09-06 | 1993-09-06 | Descaling, dredging and cleaning apparatus for pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1100009A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794284A (en) * | 2012-08-10 | 2012-11-28 | 中铁隧道集团有限公司 | Dredge device of annular embedded corrugated pipe duct and dredge method thereof |
| CN102889065A (en) * | 2012-10-29 | 2013-01-23 | 中国海洋石油总公司 | Through diameter process of vertical pipe |
| CN103659498A (en) * | 2012-09-03 | 2014-03-26 | 舒能（苏州）工业技术有限公司 | Bend polishing tool |
| CN104499563A (en) * | 2014-12-18 | 2015-04-08 | 廉建会 | Pipeline unclogging and cleaning equipment |
| CN106944385A (en) * | 2017-04-11 | 2017-07-14 | 郑州中原科技工程研究院有限公司 | Spring flexible shaft rubbish adhesion processor and obstacles removing car spring flexible shaft recovery method |
| CN113226578A (en) * | 2018-12-31 | 2021-08-06 | 汉阳大学校产学协力团 | Pipe cleaning device |
-
1993
- 1993-09-06 CN CN 93117233 patent/CN1100009A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794284A (en) * | 2012-08-10 | 2012-11-28 | 中铁隧道集团有限公司 | Dredge device of annular embedded corrugated pipe duct and dredge method thereof |
| CN102794284B (en) * | 2012-08-10 | 2014-07-16 | 中铁隧道集团有限公司 | Dredge device of annular embedded corrugated pipe duct and dredge method thereof |
| CN103659498A (en) * | 2012-09-03 | 2014-03-26 | 舒能（苏州）工业技术有限公司 | Bend polishing tool |
| CN102889065A (en) * | 2012-10-29 | 2013-01-23 | 中国海洋石油总公司 | Through diameter process of vertical pipe |
| CN104499563A (en) * | 2014-12-18 | 2015-04-08 | 廉建会 | Pipeline unclogging and cleaning equipment |
| CN106944385A (en) * | 2017-04-11 | 2017-07-14 | 郑州中原科技工程研究院有限公司 | Spring flexible shaft rubbish adhesion processor and obstacles removing car spring flexible shaft recovery method |
| CN106944385B (en) * | 2017-04-11 | 2023-05-26 | 郑州中原科技工程研究院有限公司 | Spring flexible shaft garbage adhesion processor and method for recycling spring flexible shaft of obstacle clearance vehicle |
| CN113226578A (en) * | 2018-12-31 | 2021-08-06 | 汉阳大学校产学协力团 | Pipe cleaning device |
| CN113226578B (en) * | 2018-12-31 | 2023-02-17 | 汉阳大学校产学协力团 | Pipe cleaning device |
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