CN106195520A - A kind of multifunctional pipe mounted maintenance equipment - Google Patents
A kind of multifunctional pipe mounted maintenance equipment Download PDFInfo
- Publication number
- CN106195520A CN106195520A CN201610811222.0A CN201610811222A CN106195520A CN 106195520 A CN106195520 A CN 106195520A CN 201610811222 A CN201610811222 A CN 201610811222A CN 106195520 A CN106195520 A CN 106195520A
- Authority
- CN
- China
- Prior art keywords
- outer case
- hole
- internal box
- connects
- maintenance equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2101/00—Uses or applications of pigs or moles
- F16L2101/10—Treating the inside of pipes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Sewage (AREA)
Abstract
The present invention relates to a kind of multifunctional pipe mounted maintenance equipment, internal box is arranged at inside outer case, and internal box connects with external pressure water source；Internal box and stiffness spring are fixing to be connected, and internal box rear end is also connected with funnel back-up ring, and the elastic force holding after funnel back-up ring component backward is compressed by hydraulic pressure with stiffness spring balances；Internal box is provided with an internal box hole, and outer case is sequentially provided with on same straight line water hole of falling back, left and right turning water hole, advance water hole；The first annular groove that falling back water hole and is located in outer case connects, and the first annular groove jetting hole of falling back with the circle on outer case front end face connects；Left and right turning water hole connects with the left and right turning jetting hole on outer case sidewall respectively；Advance water hole connects with the second annular groove being located in outer case, and the second annular groove connects with the circle advance jetting hole on outer case front end face；When the hydraulic pressure in internal box reaches setting value, stiffness spring is compressed to the position of corresponding aperture, and current drive multifunctional pipe mounted maintenance equipment to fall back, turn, advance respectively.
Description
Technical field
The present invention relates to a kind of multifunctional pipe mounted maintenance equipment, belong to pipeline curing means technical field.
Background technology
Prior art, for pipe-dredging and maintenance, typically has a following several ways:
1) mode manually in person entering pipeline cleaning is used to clear up.Manually draw clearly method inefficiency, work by force
Degree is big, potential safety hazard is many, with 5 people and corresponding tool, for diameter 1m pipeline, every day most commensurable 100m；
2) winch is used to drive hawser to dredge.Winch dredging method is worn bamboo chip from a well head to another well head and is needed people
Work has been gone into the well, and the working environment of down-hole very severe brings very big inconvenience, the health of harm workman to workman, even can endanger
The life of workman, although domestic have substantial amounts of wire rope handling robot research, but yet there are no large-scale popularization application, and when blocking is serious
Time wire rope handling extremely difficult, even cannot be carried out wire rope handling operation.
3) potential energy of water is used to dredge by the mode washed away.Waterpower dredging method needs special geogen,
It requires that pipeline itself have to have certain flow, and mud is unsuitable too much (about 20%), and the water of upstream can not be from other branch roads
Flow away, must ensure not make upper water flow back into nearby buildings, misoperation simultaneously, be likely to result in upstream line and produce new
Alluvial；
4) giant is used directly pipeline to be cleared up.High-pressure water jet desilting method is applicable to the lower water of various diameter
Pipeline, but this method is only applicable to the most serious situation of depositing, and working performance is relatively low simultaneously, needs substantial amounts of clear water,
Dredging operation is relatively costly.
Summary of the invention
It is an object of the invention to provide a kind of novel multifunctional pipe mounted maintenance equipment, solve existing pipe-dredging and clean not
Just or by problems such as environmental factors are bigger, the cost of dredging operation is reduced.
The present invention takes techniques below scheme:
A kind of multifunctional pipe mounted maintenance equipment, including rotary cutter 1, outer case 2, internal box 10, funnel back-up ring 9, Rigid Projectiles
Spring 6；It is internal that described internal box 10 is arranged at outer case 2, and internal box 10 connects with external pressure water source；Internal box 10 front end is passed through
Flexible duct connects with the inclined hole 11 of outer case 2 front end, and described inclined hole 11 connects with rotary cutter 1, and from its rotating water perforation
103 injections, utilize hydraulic pressure that cutter head 1 is rotated and rotate；Internal box 10 is fixing with stiffness spring 6 to be connected, and internal box 10 rear end is also
Being connected with funnel back-up ring 9, the elastic force after funnel back-up ring 9 component backward is compressed by hydraulic pressure with stiffness spring 6 keeps balance；Described
Internal box 10 is provided with an internal box hole 8, and outer case is sequentially provided with on same straight line water hole 3 of falling back, left and right turning water hole
4,4/, advance water hole 5；Described the first annular groove 3b falling back water hole 3 and be located at outer case in 2 connects, described first annular groove 3b with
A circle on outer case front end face fall back jetting hole 3a connection；Described left and right turning water hole 4,4/ respectively with on outer case sidewall
4a, 4a/ connection of left and right turning jetting hole；Described advance water hole 5 connects with the second annular groove 5b being located in outer case 2, described
Second annular groove 5b connects with the circle advance jetting hole 5a on outer case front end face；When the hydraulic pressure in internal box 10 reaches setting value
Time, stiffness spring 6 be compressed to the water hole 3 of falling back of correspondence, left and right turning water hole 4,4/, the position in advance water hole 5, current are respectively
Multifunctional pipe mounted maintenance equipment is driven to fall back, turn, advance.
Further, described outer case 2, internal box 10 are each integral structure.
Further, a described circle advance jetting hole 5a spaced set；Described one encloses the jetting hole 3a that falls back equidistantly sets
Put.
Further, the bottom of described outer case 2 is provided with some just suspension holes 7 to lower section, when current penetrate from this hole
After, whole device can be suspended in the air, reduces the friction with dredging pipeline inwall.
Further, described rotary cutter 1 includes that flat key 101, rotating blade 102, described flat key 101 are used for loading and unloading rotation
Cutter head.
Further, described pressure water source is connected with funnel back-up ring 9 from rear portion.
The beneficial effects of the present invention is:
1) utilize different hydraulic pressure, achieve the advance of multifunctional pipe mounted maintenance equipment respectively, retreat, turn left, turn right, control
Convenient.
2) hydraulic pressure can also drive rotary cutter to rotate, it is achieved head cleans and the function of cutting.
3) simple in construction, easy to control, carry out purely mechanic control only with hydraulic pressure, there is no electric-control system, reliability is high.
4) labor intensity of pipeline maintenance is alleviated.
5) improve the work efficiency of pipeline maintenance.
6) hydraulic pressure is as power and as cleanout fluid, kills two birds with one stone, and is skillfully constructed.
7) pipe-dredging, maintenance effect are good, easy and simple to handle.
8) problem producing upstream line new alluvial when such as water potential energy washes away is avoided.
9) relative to giant, saved a large amount of water, reduced cost, and dredging effect is more preferable.
10) design of inside and outside body structure is ingenious, integral structure better reliability.
Accompanying drawing explanation
Fig. 1 is the structural representation of multifunctional pipe mounted maintenance equipment internal box of the present invention.
Fig. 2 is the structural representation after multifunctional pipe mounted maintenance equipment internal box cutting of the present invention.
Fig. 3 is the structural representation one after multifunctional pipe mounted maintenance equipment outer case cutting of the present invention.
Fig. 4 is the structural representation two after multifunctional pipe mounted maintenance equipment outer case cutting of the present invention.
Fig. 5 is the structural representation three after multifunctional pipe mounted maintenance equipment outer case cutting of the present invention.
Fig. 6 is the structural representation four after multifunctional pipe mounted maintenance equipment outer case cutting of the present invention.
Fig. 7 is the structural representation five after multifunctional pipe mounted maintenance equipment outer case cutting of the present invention.
Fig. 8 is the structural representation six after multifunctional pipe mounted maintenance equipment outer case cutting of the present invention.
Fig. 9 is the structural representation of the rotary cutter in multifunctional pipe mounted maintenance equipment of the present invention.
Figure 10 is the external structure schematic diagram of multifunctional pipe mounted maintenance equipment of the present invention.
Figure 11 is the internal structure perspective view of multifunctional pipe mounted maintenance equipment of the present invention.
Figure 12 is the schematic flow sheet of multifunctional pipe mounted maintenance equipment hydraulic pressure control of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and be embodied as that the present invention is further described.
Multifunctional pipe mounted maintenance equipment of the present invention is made up of three digest journals, is purging system, running gear and water supply and sewage respectively
System.
Purging system includes cutting mechanism and cleaning machine.Cutting mechanism is attached on fouling on inner-walls of duct for cutting
Thing, such as: mud, greasy dirt or weeds；The foreign material that wiper mechanism is tiny in staying pipeline after removing cutting, and by rotation
Turn the water that clean-out opening (rotating water perforation) penetrates and foreign material are transferred to rear.
Running gear comprises forward gear, setback device, turning device.By regulation hydraulic pressure, impact funnel back-up ring, and then
Change the deformation quantity of spring, make the aperture on pipeline mounted maintenance equipment inner cylindrical wall and aperture (advancing water perforation) weight in outer cylindrical wall
Close so that High-Pressure Water is penetrated by aperture, reach whole pipeline mounted maintenance equipment with high-pressure rubber pipe in sewer to reach
Dynamic purpose；Again regulate hydraulic pressure, impact funnel back-up ring, and then the deformation quantity of change spring, make pipeline mounted maintenance equipment inner cylindrical wall
On aperture can overlap with second aperture (turning water-jet hole) in outer cylindrical wall so that High-Pressure Water is by aperture,
The water penetrated from this aperture can change the direction of advance of cleaning machine, reaches the purpose moved right to the left；
In like manner, when wanting to allow pipeline mounted maintenance equipment retreat, regulate hydraulic pressure, impact funnel back-up ring, and then change the deformation of spring
Amount, makes the aperture on pipeline mounted maintenance equipment inner cylindrical wall can overlap with the 3rd aperture in outer cylindrical wall, and High-Pressure Water is from the
Three aperture (water-jet hole of falling back) injections, reach the purpose that cleaning machine can be made to draw back.
Water system uses the most common high-pressure sewer flushing vehicle or easy booster pump, it is provided that a range of pressure
Power, makes pipeline mounted maintenance equipment realize rotation and the cleaning of cutting mechanism, and meets the advance of pipeline mounted maintenance equipment, turn and retreat.
Concrete structure is described as follows:
Seeing Fig. 1-12, a kind of multifunctional pipe mounted maintenance equipment, including rotary cutter 1, outer case 2, internal box 10, funnel gear
Circle 9, stiffness spring 6；It is internal that described internal box 10 is arranged at outer case 2, and internal box 10 connects with external pressure water source；Internal box
10 front ends are connected with the inclined hole 11 of outer case 2 front end by flexible duct, and described inclined hole 11 connects with rotary cutter 1, and from it
Rotating water perforation 103 penetrates, and utilizes hydraulic pressure that cutter head 1 is rotated and rotates；Internal box 10 is fixing with stiffness spring 6 to be connected, interior case
Body 10 rear end is also connected with funnel back-up ring 9, and the elastic force after funnel back-up ring 9 component backward is compressed by hydraulic pressure with stiffness spring 6 is protected
Maintain an equal level weighing apparatus；Described internal box 10 is provided with an internal box hole 8, outer case is sequentially provided with on same straight line water hole 3 of falling back,
Left and right turning water hole 4,4 ', advance water hole 5；Described the first annular groove 3b falling back water hole 3 and be located at outer case in 2 connects, described
The first annular groove 3b jetting hole 3a that falls back with the circle on outer case front end face connects；Described left and right turning water hole 4,4 ' respectively with
Left and right turning jetting hole 4a on outer case sidewall, 4a ' connection；Described advance water hole 5 and the second ring being located in outer case 2
Groove 5b connects, and described second annular groove 5b connects with the circle advance jetting hole 5a on outer case front end face；When in internal box 10
When hydraulic pressure reaches setting value, stiffness spring 6 be compressed to the water hole 3 of falling back of correspondence, left and right turning water hole 4,4 ', advance water hole 5
Position, current drive multifunctional pipe mounted maintenance equipment to fall back, turn, advance respectively.
See Fig. 1,3, described outer case 2, internal box 10 are each integral structure.
See Fig. 3, a described circle advance jetting hole 5a spaced set；Described one encloses the jetting hole 3a that falls back equidistantly sets
Put.
Seeing Figure 10, the bottom of described outer case 2 is provided with some just suspension holes 7 to lower section, when current penetrate from this hole
After, whole device can be suspended in the air, reduces the friction with dredging pipeline inwall.
Seeing Figure 10, described rotary cutter 1 includes that flat key 101, rotating blade 102, described flat key 101 are used for loading and unloading rotation
Cutter head.
Seeing Figure 11, described pressure water source is connected with funnel back-up ring 9 from rear portion.
The present invention utilizes different hydraulic pressure, achieve respectively multifunctional pipe mounted maintenance equipment advance, retreat, turn left, turn right,
Easy to control；Hydraulic pressure can also drive rotary cutter to rotate, it is achieved head cleans and the function of cutting；Simple in construction, easy to control,
Carrying out purely mechanic control only with hydraulic pressure, do not have electric-control system, reliability is high；Alleviate the labor intensity of pipeline maintenance；Carry
The high work efficiency of pipeline maintenance；Hydraulic pressure, as power and as cleanout fluid, kills two birds with one stone, and is skillfully constructed；Pipe-dredging
Effective, easy and simple to handle；Avoid the problem producing upstream line new alluvial when such as water potential energy washes away；Relative to water under high pressure
Rifle, has saved a large amount of water, has reduced cost, and dredging effect is more preferable.The design of inside and outside body structure is ingenious, and integral type is tied
Structure better reliability.
Claims (6)
1. a multifunctional pipe mounted maintenance equipment, it is characterised in that:
Including rotary cutter (1), outer case (2), internal box (10), funnel back-up ring (9), stiffness spring (6)；
It is internal that described internal box (10) is arranged at outer case (2), and internal box (10) connects with external pressure water source；
Internal box (10) front end is connected with the inclined hole (11) of outer case (2) front end by flexible duct, described inclined hole (11) and rotation
Rotor head (1) connects, and penetrates from its rotating water perforation (103), utilizes hydraulic pressure that cutter head (1) is rotated and rotates；
Internal box (10) is fixing with stiffness spring (6) to be connected, and internal box (10) rear end is also connected with funnel back-up ring (9), hydraulic pressure pair
Elastic force after funnel back-up ring (9) component backward compresses with stiffness spring (6) keeps balance；
Described internal box (10) is provided with an internal box hole (8), and outer case is sequentially provided with, on same straight line, water hole of falling back
(3), left and right turning water hole (4,4 '), advance water hole (5)；
Described water hole of falling back (3) connects with the first annular groove (3b) being located in outer case (2), described first annular groove (3b) and outer container
A circle on body front end face fall back jetting hole (3a) connection；Described left and right turning water hole (4,4 ') respectively with on outer case sidewall
Left and right turning jetting hole (4a, 4a ') connection；Described advance water hole (5) and the second annular groove (5b) being located in outer case (2)
Connection, described second annular groove (5b) connects with circle advance jetting hole (5a) on outer case front end face；
When the hydraulic pressure in internal box (10) reaches setting value, stiffness spring (6) is compressed to the water hole of falling back (3), left and right of correspondence
Turning water hole (4,4 '), the position of advance water hole (5), current drive multifunctional pipe mounted maintenance equipment to fall back, turn, advance respectively.
2. multifunctional pipe mounted maintenance equipment as claimed in claim 1, it is characterised in that: described outer case (2), internal box (10) are each
From being integral structure.
3. multifunctional pipe mounted maintenance equipment as claimed in claim 1, it is characterised in that: between described circle advance jetting hole (5a) etc.
Away from setting；Described one encloses jetting hole (3a) spaced set that falls back.
4. multifunctional pipe mounted maintenance equipment as claimed in claim 1, it is characterised in that: described outer case (2) if bottom be provided with
Do the suspension hole (7) just to lower section, when current are after this hole is penetrated, and whole device can be suspended in the air, reduces and dredging pipe
The friction of road inwall.
5. multifunctional pipe mounted maintenance equipment as claimed in claim 1, it is characterised in that: described rotary cutter (1) includes flat key
(101), rotating blade (102), described flat key (101) is used for loading and unloading rotary cutter.
6. multifunctional pipe mounted maintenance equipment as claimed in claim 1, it is characterised in that: described pressure water source keeps off with funnel from rear portion
Circle (9) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610811222.0A CN106195520B (en) | 2016-09-09 | 2016-09-09 | A kind of multifunctional pipe mounted maintenance equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610811222.0A CN106195520B (en) | 2016-09-09 | 2016-09-09 | A kind of multifunctional pipe mounted maintenance equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106195520A true CN106195520A (en) | 2016-12-07 |
| CN106195520B CN106195520B (en) | 2018-06-29 |
Family
ID=58067740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610811222.0A Expired - Fee Related CN106195520B (en) | 2016-09-09 | 2016-09-09 | A kind of multifunctional pipe mounted maintenance equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106195520B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566754A (en) * | 2019-09-11 | 2019-12-13 | 大连海事大学 | Differential pressure type pipeline robot motion control device |
| CN112122273A (en) * | 2020-09-10 | 2020-12-25 | 中国水利水电第七工程局有限公司 | Dredging and detection integrated device and dredging method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004020627U1 (en) * | 2004-07-07 | 2005-10-06 | Schwarz, Reiner | Inspection device for shafts and pipes esp. house connections to sewage systems has camera in housing with ejection jets radial and angled away from housing for steering |
| CN201040872Y (en) * | 2007-05-08 | 2008-03-26 | 舒泰 | Hydraulic dredging equipment |
| CN201470649U (en) * | 2009-08-12 | 2010-05-19 | 歌山建设集团有限公司 | Hydraulic-driving cutting type descaling machine for pipe inner walls |
| CN102101116A (en) * | 2009-12-18 | 2011-06-22 | 安东石油技术（集团）有限公司 | Pipe inner wall descaling cutter |
| CN202015721U (en) * | 2011-01-31 | 2011-10-26 | 王毅诚 | Pneumatic type oil pipe cleaning device |
| CN102620110A (en) * | 2012-04-10 | 2012-08-01 | 苏州大学 | Pipeline robot |
-
2016
- 2016-09-09 CN CN201610811222.0A patent/CN106195520B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004020627U1 (en) * | 2004-07-07 | 2005-10-06 | Schwarz, Reiner | Inspection device for shafts and pipes esp. house connections to sewage systems has camera in housing with ejection jets radial and angled away from housing for steering |
| CN201040872Y (en) * | 2007-05-08 | 2008-03-26 | 舒泰 | Hydraulic dredging equipment |
| CN201470649U (en) * | 2009-08-12 | 2010-05-19 | 歌山建设集团有限公司 | Hydraulic-driving cutting type descaling machine for pipe inner walls |
| CN102101116A (en) * | 2009-12-18 | 2011-06-22 | 安东石油技术（集团）有限公司 | Pipe inner wall descaling cutter |
| CN202015721U (en) * | 2011-01-31 | 2011-10-26 | 王毅诚 | Pneumatic type oil pipe cleaning device |
| CN102620110A (en) * | 2012-04-10 | 2012-08-01 | 苏州大学 | Pipeline robot |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566754A (en) * | 2019-09-11 | 2019-12-13 | 大连海事大学 | Differential pressure type pipeline robot motion control device |
| CN110566754B (en) * | 2019-09-11 | 2021-06-04 | 大连海事大学 | Differential pressure type pipeline robot motion control device |
| CN112122273A (en) * | 2020-09-10 | 2020-12-25 | 中国水利水电第七工程局有限公司 | Dredging and detection integrated device and dredging method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106195520B (en) | 2018-06-29 |
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Granted publication date: 20180629 Termination date: 20210909 |