CN110056744A - A kind of rake suction unit vehicle dredge pump suction inlet and swivel joint mechanism - Google Patents
A kind of rake suction unit vehicle dredge pump suction inlet and swivel joint mechanism Download PDFInfo
- Publication number
- CN110056744A CN110056744A CN201910164929.0A CN201910164929A CN110056744A CN 110056744 A CN110056744 A CN 110056744A CN 201910164929 A CN201910164929 A CN 201910164929A CN 110056744 A CN110056744 A CN 110056744A
- Authority
- CN
- China
- Prior art keywords
- swivel joint
- cutting ferrule
- protection cap
- dredge pump
- unit vehicle
- 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.)
- Granted
Links
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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0206—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the collar not being integral with the pipe
-
- 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
- F16L23/00—Flanged joints
- F16L23/003—Auxiliary devices
-
- 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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/005—Protection of pipes or objects of similar shape against external or internal damage or wear specially adapted for the ends of pipes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The present invention relates to rake suction unit vehicle technical fields; and disclose a kind of rake suction unit vehicle dredge pump suction inlet and swivel joint mechanism; including dredge pump, swivel joint and dredging tube; swivel joint is fixedly installed with protection cap at the top of one end; sealing ring is fixedly installed at the top of upper protection cover cavity; the side of upper protection cap bottom is fixedly installed with mounting plate; it is fixedly connected at the top of the side of mounting plate and lower protection cap; the other end screw thread of swivel joint is socketed with cutting ferrule nut, and the inner cavity of cutting ferrule nut is movably installed with the preceding cutting ferrule positioned at swivel joint one end.The rake suction unit vehicle dredge pump suction inlet and swivel joint mechanism; dredge pump suction inlet and the flange at swivel joint are protected by knockdown upper protection cap and lower protection cap; upper protection cap and lower protection cap are fixed using mounting plate simultaneously; in addition sealing ring is installed in the inside of upper protection cap and lower protection cap; the entrance of muddy water is prevented, to improve the service life of joint flange.
Description
Technical field
The present invention relates to rake suction unit vehicle technical field, specially a kind of rake suction unit vehicle dredge pump suction inlet and swivel joint machine
Structure.
Background technique
Rake suction unit vehicle be dredging technology equipment test platform key equipment, its main function be for complete rake inhale,
The model test for twisting suction, the dredging system of grab boat three classes main force ship type and crucial dredging tool, harrows suction unit vehicle by cart
And lateral Working cart, control system and power supply system composition on cart, while harrowing suction unit vehicle and being furnished with underwater dredge pump system,
Wherein the dredge pump in underwater dredge pump system needs first to connect swivel joint before connecting with dredging tube, keeps dredging tube normal
Rotation.
Existing swivel joint is mostly to be connected by ring flange, but harrow suction unit vehicle when the suction inlet with dredge pump is connect
Working environment it is poor, there are a large amount of muddy water, be easy to corrode ring flange, so that staff is difficult to connector from dredge pump
It disassembles or causes connector and the seal assembly of dredge pump junction to be corroded, affect between connector and dredge pump suction inlet
Sealing effect, in addition, connector when connecting with dredging tube, not can guarantee whether dredging tube is connected firmly or is assembled to connector
Position, so that the fastness and leakproofness between dredging tube and swivel joint cannot be guaranteed, the present invention provides one kind thus
Harrow suction unit vehicle dredge pump suction inlet and swivel joint mechanism.
Summary of the invention
The present invention provides a kind of rake suction unit vehicle dredge pump suction inlet and swivel joint mechanism, have to dredge pump suction inlet and rotation
The ring flange of pipe fitting is protected, it is ensured that is assembled in place between dredging tube and swivel joint, is prevented muddy water from entering cutting ferrule
Advantage in nut solves existing swivel joint when the suction inlet with dredge pump is connect, be mostly connected by ring flange, but
Be harrow suction unit vehicle working environment it is poor, there are a large amount of muddy water, be easy to corrode ring flange, so that staff is difficult to connect
Head disassembles or causes connector and the seal assembly of dredge pump junction to be corroded from dredge pump, affects connector and dredge pump
Sealing effect between suction inlet, in addition, connector when connecting with dredging tube, not can guarantee whether dredging tube is connected firmly with connector
Or assembly is in place, so that the problem of fastness and leakproofness between dredging tube and swivel joint cannot be guaranteed.
The invention provides the following technical scheme: a kind of rake suction unit vehicle dredge pump suction inlet and swivel joint mechanism, including dredge pump,
Swivel joint and dredging tube, are fixedly installed with protection cap at the top of described swivel joint one end, in the upper protection cap
Sealing ring is fixedly installed at the top of chamber, the side of the upper protection cap bottom is fixedly installed with mounting plate, the mounting plate
It is fixedly connected at the top of side and lower protection cap, the other end screw thread of the swivel joint is socketed with cutting ferrule nut, the card
The inner cavity of set nut is movably installed with the preceding cutting ferrule positioned at swivel joint one end, after the side of the preceding cutting ferrule is movably installed with
The top of cutting ferrule, cutting ferrule nut intracavity side is equipped with backing plate, and the top of the backing plate is fixedly connected with one end of connecting rod,
The other end of the connecting rod runs through the side of cutting ferrule nut and extends in seal chamber and be fixedly connected with the bottom of connecting plate,
The seal chamber is located at the inside of cutting ferrule nut, and the top of the connecting plate is fixedly connected with one end of motion bar, the activity
One end of bar runs through the top of seal chamber and extends to the top of cutting ferrule nut and be fixedly connected with the bottom of fixed block, the company
The side of the bottom of fishplate bar is fixedly installed with top plate, and the bottom of the seal chamber is fixedly installed with sealing device, the sealing dress
Set the inner cavity for being symmetrically distributed in seal chamber.
Preferably, the sealing device includes movable plate, and the side of the movable plate bottom is fixedly installed with tapered shaft, institute
The bottom for stating tapered shaft is equipped with symmetrical wedge block, and the side of the wedge block is fixedly connected with one end of spring, described
The other end of spring is fixedly installed with sealing block.
Preferably, circular hole is offered at the top of the movable plate, and the circular hole at the top of movable plate and connecting rod and motion bar
Between there is spacing.
Preferably, the shape of the sealing block is semicircle, and the quantity of sealing block is twice of sealing device, described close
Envelope block is rubber block.
Preferably, the quantity of the mounting plate is four, and four mounting plates be symmetrically distributed in the top of lower protection cap with
The bottom of upper protection cap, and connected between mounting plate by fixing bolt.
Preferably, the lower protection cap is identical as upper protection cap, and the both ends of lower protection cap are respectively equipped with and dredge pump and rotation
The compatible semicircle orifice of tube connector.
Preferably, the inner cavity of the cutting ferrule nut is adapted with preceding cutting ferrule and rear cutting ferrule, and the outside of cutting ferrule nut opens up
Fluted, the groove outside the cutting ferrule nut is on a vertical line.
Preferably, the side wall of the seal chamber inner cavity offers vertical sliding slot compatible with movable plate, and in seal chamber
The bottom of chamber offers horizontal concrete chute compatible with wedge block, and the quantity of the seal chamber is two.
Preferably, the thickness value of the fixed block is less than the depth value of cutting ferrule nut top groove, and the top of fixed block
When hit the ceiling in the same plane with the top of cutting ferrule nut top groove.
The present invention have it is following the utility model has the advantages that
1, the rake suction unit vehicle dredge pump suction inlet and swivel joint mechanism, pass through knockdown upper protection cap and lower protection cap pair
Dredge pump suction inlet is protected with the flange at swivel joint, while being fixed upper protection cap and lower protection cap using mounting plate,
In addition sealing ring is installed in the inside of upper protection cap and lower protection cap, it is therefore prevented that the entrance of muddy water, to improve joint flange
Service life.
2, the rake suction unit vehicle dredge pump suction inlet and swivel joint mechanism, by backing plate, connecting rod, connecting plate, motion bar and
Fixed block is used cooperatively, and is made when dredging tube assembles in place, and rear cutting ferrule jacks up backing plate, and connecting rod is made to drive connecting plate upward
Movement drives motion bar and fixed block to move upwards, and top and the groove outside cutting ferrule nut of final fixed block agree with, so that
Staff can accurately recognize the case where assembly, thus ensure that fastness between swivel joint and dredging tube and
Leakproofness.
3, the rake suction unit vehicle dredge pump suction inlet and swivel joint mechanism, pass through the sealing in sealing device and cutting ferrule nut
Chamber is sealed connecting rod and motion bar, it is therefore prevented that muddy water enters the inside of cutting ferrule nut, is influencing swivel joint just
Often work, while horizontal concrete chute and vertical sliding slot in seal chamber, make sealing device preferably be sealed work.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is enlarged diagram at the A of structure of the invention；
Fig. 3 is enlarged diagram at the B of structure of the invention Fig. 2；
Fig. 4 is protection cap schematic diagram under structure of the invention.
In figure: 1, dredge pump；2, swivel joint；3, dredging tube；4, upper protection cap；5, sealing ring；6, mounting plate；7, lower guarantor
Protecting cover；8, cutting ferrule nut；9, preceding cutting ferrule；10, rear cutting ferrule；11, backing plate；12, connecting rod；13, seal chamber；14, connecting plate；15,
Motion bar；16, fixed block；17, top plate；18, sealing device；181, movable plate；182, tapered shaft；183, wedge block；184, bullet
Spring；185, sealing block.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-4, a kind of rake suction unit vehicle dredge pump suction inlet and swivel joint mechanism, including dredge pump 1, swivel joint
2 and dredging tube 3, dredge pump 1 is DN200 pump, and dredging tube 3 can rotate along 2 center of swivel joint, and with harrow suction unit vehicle direction of advance
Angle be 135 °~175 °, protection cap 4, the top of upper 4 inner cavity of protection cap are fixedly installed at the top of 2 one end of swivel joint
Portion is fixedly installed with sealing ring 5, and the side of upper 4 bottom of protection cap is fixedly installed with mounting plate 6, and the quantity of mounting plate 6 is four,
And four mounting plates 6 are symmetrically distributed in the top of lower protection cap 7 and the bottom of upper protection cap 4, and pass through fixation between mounting plate 6
It is bolted, mounting plate 6 connects together upper protection cap 4 with lower protection cap 7, while ensure that protection cap 4 and lower protection
Fastness between lid 7, the side of mounting plate 6 are fixedly connected with the top of lower protection cap 7, lower protection cap 7 and upper 4 phase of protection cap
Together, and the both ends of lower protection cap 7 are respectively equipped with semicircle orifice compatible with dredge pump 1 and swivel joint, upper protection cap 4 and lower guarantor
Protecting cover 7 protects the flange of dredge pump and joint, while being sealed protection, swivel joint 2 using sealing ring 5
Other end screw thread be socketed with cutting ferrule nut 8, the inner cavity of cutting ferrule nut 8 is adapted with preceding cutting ferrule 9 and rear cutting ferrule 10, and cutting ferrule spiral shell
The outside of mother 8 opens up fluted, and groove cutting ferrule nut 8 outside is on a vertical line, the inner cavity activity of cutting ferrule nut 8 installation
There is the preceding cutting ferrule 9 positioned at 2 one end of swivel joint, the side of preceding cutting ferrule 9 is movably installed with rear cutting ferrule 10,8 inner cavity of cutting ferrule nut
The top of side is equipped with backing plate 11, and the top of backing plate 11 is fixedly connected with one end of connecting rod 12, and the other end of connecting rod 12 passes through
It wears the side of cutting ferrule nut 8 and extends in seal chamber 13 and be fixedly connected with the bottom of connecting plate 14,13 inner cavity of seal chamber
Side wall offers vertical sliding slot compatible with movable plate 181, and the bottom of 13 inner cavity of seal chamber offers and 183 phase of wedge block
The horizontal concrete chute of adaptation, the quantity of seal chamber 13 are two, and vertical sliding slot and horizontal concrete chute in seal chamber 13 make movable plate
181 and wedge block 183 while can preferably slide, movable plate 181 and wedge block 183 are defined, seal chamber 13
In the inside of cutting ferrule nut 8, the top of connecting plate 14 is fixedly connected with one end of motion bar 15, and one end of motion bar 15 is through close
It seals the top of chamber 13 and extends to the top of cutting ferrule nut 8 and be fixedly connected with the bottom of fixed block 16, the thickness of fixed block 16
Value is less than the depth value of 8 top groove of cutting ferrule nut, and pushes up when the top hit the ceiling of fixed block 16 with cutting ferrule nut 8
The top of portion's groove in the same plane, when the maximum value that fixed block 16 rises or falls, i.e., with groove in the same plane when,
It is believed that the assembly of dredging tube 3 is in place, the side of the bottom of connecting plate 14 is fixedly installed with top plate 17, and the bottom of seal chamber 13 is fixed
Sealing device 18 is installed, sealing device 18 includes movable plate 181, and the side of 181 bottom of movable plate is fixedly installed with tapered shaft
182, the bottom of tapered shaft 182 is equipped with symmetrical wedge block 183, and the side of wedge block 183 and one end of spring 184 are fixed
Connection, the other end of spring 184 is fixedly installed with sealing block 185, by sealing device 18, to connecting rod 12 and motion bar 15 into
Row sealing, prevents muddy water from entering in cutting ferrule nut 8, and the top of movable plate 181 offers circular hole, and at the top of movable plate 181
There is spacing between circular hole and connecting rod 12 and motion bar 15, by the self gravity of movable plate 181, pushes away tapered shaft 182
Dynamic wedge block 183 is sealed sealing block 185 to connecting rod 12, while preventing connecting rod 12 from falling excessively, sealing block 185
Shape is semicircle, and the quantity of sealing block 185 is twice of sealing device 18, and sealing block 185 is rubber block, two semicircles
Rubber sealing block 185 forms a complete sealing ring, and sealing device 18 is symmetrically distributed in the inner cavity of seal chamber 13.
Working principle, firstly, dredge pump 1 is connect with the ring flange of 2 one end of swivel joint, then by upper 4 He of protection cap
Lower protection cap 7 is installed to the outside of ring flange, is connected the mounting plate 6 in two protection caps by fixing bolt, by dredging tube 3
One end be inserted into the other end of swivel joint 2, rotate cutting ferrule nut 8, make the close patch of preceding cutting ferrule 9, rear cutting ferrule 10 and dredging tube 3
It closes, so that backing plate 11 is jacked up by rear cutting ferrule 10, connecting rod 12 is driven to move upwards, push connecting plate 14 to drive motion bar 15 solid
Determine the top that block rises to 8 top groove inner cavity of cutting ferrule nut, i.e., it is believed that being assembled to position, while connecting plate 14 drives top plate 17
It moves upwards, makes movable plate 181 that tapered shaft 182 be driven to move upwards, slide wedge block to the direction of motion bar 15, so that close
It seals block 185 to seal the junction of motion bar 15 and seal chamber 13, be resetted by spring 184.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element, while in the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " long
Degree ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner",
The orientation or positional relationship of the instructions such as "outside", " clockwise ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, only
It is that for the convenience of describing the present invention and simplifying the description, rather than the equipment of indication or suggestion meaning or element must have specifically
Orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention, and pattern in the present invention
Filling is merely for convenience of distinguishing different structures, rather than centainly requires or imply that filled part has special contain
Justice.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of rake suction unit vehicle dredge pump suction inlet and swivel joint mechanism, including dredge pump (1), swivel joint (2) and dredging tube
(3), it is characterised in that: be fixedly installed with protection cap (4) at the top of described swivel joint (2) one end, the upper protection cap
(4) it is fixedly installed at the top of inner cavity sealing ring (5), the side of upper protection cap (4) bottom is fixedly installed with mounting plate
(6), it is fixedly connected at the top of the side of the mounting plate (6) and lower protection cap (7), the other end of the swivel joint (2)
Screw thread is socketed with cutting ferrule nut (8), and the inner cavity of the cutting ferrule nut (8) is movably installed with positioned at swivel joint (2) one end
The side of preceding cutting ferrule (9), the preceding cutting ferrule (9) is movably installed with rear cutting ferrule (10), the top of cutting ferrule nut (8) the inner cavity side
Portion is equipped with backing plate (11), and the top of the backing plate (11) is fixedly connected with one end of connecting rod (12), the connecting rod (12)
The other end runs through the side of cutting ferrule nut (8) and extends in seal chamber (13) and be fixedly connected with the bottom of connecting plate (14),
The seal chamber (13) is located at the inside of cutting ferrule nut (8), and the top of the connecting plate (14) and the one end of motion bar (15) are solid
Fixed connection, one end of the motion bar (15) through seal chamber (13) top and extend to cutting ferrule nut (8) top and with
The bottom of fixed block (16) is fixedly connected, and the side of the bottom of the connecting plate (14) is fixedly installed with top plate (17), described close
The bottom of envelope chamber (13) is fixedly installed with sealing device (18), and the sealing device (18) is symmetrically distributed in the interior of seal chamber (13)
Chamber.
2. a kind of rake suction unit vehicle dredge pump suction inlet according to claim 1 and swivel joint mechanism, it is characterised in that: described
Sealing device (18) includes movable plate (181), and the side of movable plate (181) bottom is fixedly installed with tapered shaft (182), institute
The bottom for stating tapered shaft (182) is equipped with symmetrical wedge block (183), the side and spring (184) of the wedge block (183)
One end be fixedly connected, the other end of the spring (184) is fixedly installed with sealing block (185).
3. a kind of rake suction unit vehicle dredge pump suction inlet according to claim 2 and swivel joint mechanism, it is characterised in that: described
Offer circular hole at the top of movable plate (181), and the circular hole at the top of movable plate (181) and connecting rod (12) and motion bar (15) it
Between there is spacing.
4. a kind of rake suction unit vehicle dredge pump suction inlet according to claim 2 and swivel joint mechanism, it is characterised in that: described
The shape of sealing block (185) is semicircle, and the quantity of sealing block (185) is twice of sealing device (18), the sealing block
It (185) is rubber block.
5. a kind of rake suction unit vehicle dredge pump suction inlet according to claim 1 and swivel joint mechanism, it is characterised in that: described
The quantity of mounting plate (6) is four, and four mounting plates (6) are symmetrically distributed in the top and upper protection cap (4) of lower protection cap (7)
Bottom, and between mounting plate (6) pass through fixing bolt connect.
6. a kind of rake suction unit vehicle dredge pump suction inlet according to claim 1 and swivel joint mechanism, it is characterised in that: described
Lower protection cap (7) is identical as upper protection cap (4), and the both ends of lower protection cap (7) are respectively equipped with and dredge pump (1) and swivel joint
Compatible semicircle orifice.
7. a kind of rake suction unit vehicle dredge pump suction inlet according to claim 1 and swivel joint mechanism, it is characterised in that: described
The inner cavity of cutting ferrule nut (8) is adapted with preceding cutting ferrule (9) and rear cutting ferrule (10), and the outside of cutting ferrule nut (8) open up it is fluted,
The external groove of the cutting ferrule nut (8) is on a vertical line.
8. a kind of rake suction unit vehicle dredge pump suction inlet according to claim 1 and swivel joint mechanism, it is characterised in that: described
The side wall of seal chamber (13) inner cavity offers vertical sliding slot compatible with movable plate (181), and the bottom of seal chamber (13) inner cavity
Portion offers and wedge block (183) compatible horizontal concrete chute, and the quantity of the seal chamber (13) is two.
9. a kind of rake suction unit vehicle dredge pump suction inlet according to claim 1 and swivel joint mechanism, it is characterised in that: described
The thickness value of fixed block (16) is less than the depth value of cutting ferrule nut (8) top groove, and rises to most at the top of fixed block (16)
When big height in the same plane with the top of cutting ferrule nut (8) top groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164929.0A CN110056744B (en) | 2019-03-05 | 2019-03-05 | Mud pump suction port and rotary pipe joint mechanism of trailing suction trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164929.0A CN110056744B (en) | 2019-03-05 | 2019-03-05 | Mud pump suction port and rotary pipe joint mechanism of trailing suction trolley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110056744A true CN110056744A (en) | 2019-07-26 |
| CN110056744B CN110056744B (en) | 2021-03-05 |
Family
ID=67316596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910164929.0A Active CN110056744B (en) | 2019-03-05 | 2019-03-05 | Mud pump suction port and rotary pipe joint mechanism of trailing suction trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110056744B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043314A (en) * | 2019-12-28 | 2020-04-21 | 江苏玖玖嘉一超声科技有限公司 | Rotary sealing structure of special-shaped vacuum groove |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103251A (en) * | 1985-04-23 | 1986-10-29 | 日本钢管株式会社 | The lifting appliance of drag arm of drag suction type dredger |
| CN2516798Y (en) * | 2001-12-05 | 2002-10-16 | 梁世良 | Thin-wall pipe joint |
| JP2003278184A (en) * | 2002-03-26 | 2003-10-02 | Kobelco Contstruction Machinery Ltd | Short-radius revolving shovel |
| CN101435524A (en) * | 2007-11-16 | 2009-05-20 | 中国海洋石油总公司 | Submarine pipeline underwater flange seal protecting device |
| CN102330557A (en) * | 2011-07-29 | 2012-01-25 | 北京市三一重机有限公司 | Slurry injection system and tunneling machine |
-
2019
- 2019-03-05 CN CN201910164929.0A patent/CN110056744B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103251A (en) * | 1985-04-23 | 1986-10-29 | 日本钢管株式会社 | The lifting appliance of drag arm of drag suction type dredger |
| CN2516798Y (en) * | 2001-12-05 | 2002-10-16 | 梁世良 | Thin-wall pipe joint |
| JP2003278184A (en) * | 2002-03-26 | 2003-10-02 | Kobelco Contstruction Machinery Ltd | Short-radius revolving shovel |
| CN101435524A (en) * | 2007-11-16 | 2009-05-20 | 中国海洋石油总公司 | Submarine pipeline underwater flange seal protecting device |
| CN102330557A (en) * | 2011-07-29 | 2012-01-25 | 北京市三一重机有限公司 | Slurry injection system and tunneling machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043314A (en) * | 2019-12-28 | 2020-04-21 | 江苏玖玖嘉一超声科技有限公司 | Rotary sealing structure of special-shaped vacuum groove |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110056744B (en) | 2021-03-05 |
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