CN113526357A - Pipeline lifting equipment for laying pipeline construction - Google Patents
Pipeline lifting equipment for laying pipeline construction Download PDFInfo
- Publication number
- CN113526357A CN113526357A CN202110793397.4A CN202110793397A CN113526357A CN 113526357 A CN113526357 A CN 113526357A CN 202110793397 A CN202110793397 A CN 202110793397A CN 113526357 A CN113526357 A CN 113526357A
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- Prior art keywords
- pipeline
- wall
- pipe
- suspension
- laying
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- Pending
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- 238000010276 construction Methods 0.000 title claims abstract description 25
- 239000000725 suspension Substances 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000004804 winding Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
- B66C17/06—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes
- B66C17/12—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes for handling workpieces, e.g. ingots, which require to be supported temporarily within, or withdrawn from, a treatment chamber, e.g. tong cranes, soaking-pit cranes, stripper cranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/18—Band-type slings
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- 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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Sewage (AREA)
Abstract
The invention discloses a pipeline lifting device for laying pipeline construction, which comprises a support, wherein the top of the support is fixedly connected with a top frame, the top foreign currency of the top frame is fixedly connected with a rain top, the two sides of the top frame are provided with transverse sliding rails, the outer walls of the transverse sliding rails are connected with longitudinal sliding rails in a sliding mode, the bottom ends of the longitudinal sliding rails are connected with top beams in a sliding mode, the two sides of each top beam are symmetrically provided with transmission wheel sets, and the bottom ends of the top beams are fixedly connected with a suspension frame in a suspension mode through the transmission wheel sets on the two sides. The pipe belt assembly with the lifting structure and the longitudinal and transverse adjustment is used for suspending a pipeline in a parallel and stable mode by utilizing the pipe belt, the middle of the pipe belt is adsorbed and fixed by utilizing the electromagnet, the pipe belt assembly is convenient and fast to disassemble and assemble, rope sleeving and rope releasing are not needed manually, the pipe belt assembly is convenient to transport and can be hoisted and lowered, and the like, and stable transportation of the pipeline can be realized by utilizing the pipe end fixing assembly capable of moving left and right, the air cushion type pipe end supporting and fixing structure and blocking the two ends of the pipeline.
Description
Technical Field
The invention relates to the technical field of pipeline construction, in particular to pipeline hoisting equipment for pipeline construction laying.
Background
With the rapid progress and development of our society, especially in cities, pipelines are required to be constructed, but according to the prior pipeline construction work, the internal operation of the pipelines is mainly carried out manually.
The traditional construction technology is used for laying construction by manually bundling up the laying mode of a hoisting pipeline for large excavation which is mostly adopted. This kind of traditional pipeline of tying up handling mode needs constructor to carry out the pipeline of multichannel process to tie up to the pipeline to prevent that the pipeline from appearing the incident such as dropping in handling installation, thereby very big reduction the efficiency of construction, improved pipeline installation cost, can't satisfy modern quick construction needs.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides pipeline lifting equipment for laying pipeline construction.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a pipeline handling equipment for pipeline construction is laid, includes the support, the top fixedly connected with top frame of support, and the top foreign currency fixed connection of top frame has the rain top, the both sides of top frame are equipped with horizontal slide rail, the outer wall sliding connection of horizontal slide rail has vertical slide rail, and the bottom sliding connection of vertical slide rail has the back timber, the bilateral symmetry of back timber is equipped with the transmission wheelset, and the bottom of back timber suspends fixedly connected with in midair through the transmission wheelset of both sides and suspends the frame in midair, the inboard equidistance in bottom of suspending the frame in midair distributes and has four at least pipe belts, the both ends bottom side of suspending in midair all is equipped with the fixed subassembly of pipe end, and the fixed subassembly of pipe end and pipe belt are located same horizontal plane, the bilateral outer wall symmetry of back timber is equipped with the board of shaking proof.
As a further scheme of the invention, winding motors are symmetrically and fixedly connected to two sides of the outer wall of the top beam, and an output shaft of each winding motor is connected with a winding disc.
As a further scheme of the invention, the transmission wheel set consists of a transfer wheel, a suspension wheel and a suspension steel wire, and the transfer wheel and the suspension wheel are in transmission connection with the winding disc through the suspension steel wire.
As a further aspect of the present invention, the bottom end of the suspension wire is connected to an end outer wall of the suspension bracket.
As a further scheme of the invention, the pipe end fixing assembly comprises an adjusting slide rail, a driving assembly, an air pump, an annular supporting air bag and a lifting air cylinder, the lifting air cylinder is positioned on the outer wall of the bottom end of the suspension frame, one end of a piston rod of the lifting air cylinder is connected to the outer wall of the top end of the adjusting slide rail, a sliding seat is arranged at the bottom end of the adjusting slide rail, the annular supporting air bag is arranged on the outer wall of the end part of the sliding seat, the air pump is arranged on the outer wall of the other side of the sliding seat, the air pump is connected with the annular supporting air bag through a pipeline, and the end part of the driving assembly is connected with the inner side of the sliding seat.
As a further scheme of the invention, the driving assembly consists of a stepping motor and a lead screw, an output shaft of the stepping motor is connected to the outer wall of one end of the lead screw, and the outer wall of the lead screw is in transmission engagement with the inner wall of the sliding seat.
As a further scheme of the invention, the pipe belt consists of two belts and two pipe gaskets with built-in electromagnets, the middle parts of the two belts are connected through the two pipe gaskets with built-in electromagnets at the end parts, and the electromagnet is arranged at the joint of the pipe gaskets with built-in electromagnets.
As a further proposal of the invention, the inner side of the bottom end of the shockproof swinging plate is provided with a shock absorption rubber block which is arranged on the outer wall of the suspension bracket in parallel.
The invention has the beneficial effects that:
1. the bottom end of the pipeline hoisting equipment is provided with a pipe belt assembly with a lifting structure and longitudinal and transverse adjustment, a pipeline is suspended in a parallel and stable mode by utilizing the pipe belt, the middle of the pipe belt is adsorbed and fixed by utilizing an electromagnet, the pipeline is convenient to disassemble and assemble, rope sleeving and rope releasing are not needed manually, the pipeline can be conveniently transported, hoisted and lowered, and the like, and stable transportation of the pipeline can be realized by utilizing the pipe end fixing assembly capable of moving left and right, an air cushion type pipe end supporting and fixing structure and plugging two ends of the pipeline;
2. the air cushion type fixing structures arranged at the two ends of the pipeline hoisting equipment can be matched with the lifting cylinder and the transmission wheel set structure in the lowering process to realize stable lowering release until a pipeline is laid in a pipeline ditch, and meanwhile, the air cushion type fixing structures and the pipe belt fixing can be suitable for different pipeline inner and outer diameters, so that the pipeline laying application scene is improved;
3. the pipeline lifting equipment is provided with a support and a brake universal wheel to realize transportation and movement, can be freely adjusted when a pipeline is laid, is matched with a rain roof at the top, and can ensure normal operation and control in severe weather.
Drawings
FIG. 1 is a schematic perspective view of a pipeline lifting device for laying pipeline construction according to the present invention;
FIG. 2 is a schematic structural view of a rain roof and universal wheels of the pipeline lifting equipment for pipeline construction laying according to the present invention;
FIG. 3 is a schematic structural diagram of a lifting main body of the pipeline lifting equipment for laying pipeline construction provided by the invention;
FIG. 4 is a schematic front view of the structure of FIG. 3;
FIG. 5 is a side view of the structure of FIG. 3;
fig. 6 is a schematic structural view of a pipe belt of the pipeline lifting device for laying pipeline construction provided by the invention.
In the figure: 1. a support; 2. universal wheels with brakes; 3. a rain roof; 4. a transmission wheel set; 41. a winding motor; 42. a winding disc; 43. a transfer wheel; 44. a suspension wheel; 5. a vibration-proof swinging plate; 6. a pipe strap; 61. a belt; 62. a pipe gasket with an electromagnet inside; 7. a suspension frame; 8. a tube end securing assembly; 81. a lifting cylinder; 82. an annular support airbag; 83. an air pump; 84. a drive assembly; 85. adjusting the slide rail; 9. a transverse slide rail; 10. a top frame; 11. a longitudinal slide rail; 12. a top beam.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, a pipeline lifting device for pipeline construction laying comprises a support 1, a top frame 10 is fixedly connected to the top of the support 1, a rain top 3 is fixedly connected to the top of the top frame 10, transverse slide rails 9 are arranged on two sides of the top frame 10, longitudinal slide rails 11 are slidably connected to the outer walls of the transverse slide rails 9, a top beam 12 is slidably connected to the bottom ends of the longitudinal slide rails 11, transmission wheel sets 4 are symmetrically arranged on two sides of the top beam 12, a suspension frame 7 is fixedly connected to the bottom end of the top beam 12 in a suspended manner through the transmission wheel sets 4 on two sides, at least four pipe belts 6 are equidistantly distributed on the inner side of the bottom end of the suspension frame 7, a plurality of pipe belts are sleeved on the outer side of a pipeline in parallel manner to reduce pipeline deviation, pipe end fixing assemblies 8 are arranged on the bottom sides of two ends of the suspension frame 7, the pipe end fixing assemblies 8 and the pipe belts 6 are located on the same horizontal plane, swing plates 5 are symmetrically arranged on the outer walls of two sides of the top beam 12, the two sides of the top outer wall of the top beam 12 are symmetrically and fixedly connected with a winding motor 41, an output shaft of the winding motor 41 is connected with a winding disc 42, a transmission wheel set 4 consists of an adapter wheel 43, a suspension wheel 44 and a suspension steel wire, the adapter wheel 43 and the suspension wheel 44 are connected to the winding disc 42 through the suspension steel wire in a transmission way, the bottom end of the suspension steel wire is connected to the end outer wall of the suspension frame 7, the suspension frame is stably lifted through the transmission wheel set 4, the pipe end fixing component 8 comprises an adjusting slide rail 85, a driving component 84, an air pump 83, an annular supporting air bag 82 and a lifting air cylinder 81, the lifting air cylinder 81 is positioned on the bottom outer wall of the suspension frame 7, one end of a piston rod of the lifting air cylinder 81 is connected to the top outer wall of the adjusting slide rail 85, the bottom end of the adjusting slide rail 85 is provided with a sliding seat, the annular supporting air bag 82 is arranged on the end outer wall of the sliding seat, the air pump 83 is arranged on the other side outer wall of the sliding seat, and the air pump 83 is connected with the annular supporting air bag 82 through a pipeline, the end part of the driving assembly 84 is connected with the inner side of the sliding seat, the driving assembly 84 is composed of a stepping motor and a screw rod, the output shaft of the stepping motor is connected to the outer wall of one end of the screw rod, the outer wall of the screw rod is connected to the inner wall of the sliding seat in a transmission and meshing manner, the pipe belt 6 is composed of two belts 61 and pipe cushions 62 of two built-in electromagnets, the middle parts of the two belts 61 are connected through the pipe cushions 62 of the two built-in electromagnets at the end parts, the joints of the pipe cushions 62 of the built-in electromagnets are provided with electromagnets, the middle parts of the pipe belts are fixed by adsorption of the electromagnets, the dismounting and the rope sleeving and the rope unwinding are convenient without manual work, the inner side of the bottom end of the anti-vibration plate 5 is provided with a damping rubber block, and the damping rubber block is parallelly arranged on the outer wall of the suspension frame 7.
The working principle of the pipeline hoisting equipment is as follows:
firstly, a transmission wheel set 4 and a motor are used for lowering an integral suspension frame 7 to the height of the ground for pipeline lifting, then two ends of a pipeline are supported and fixed through a pipe end fixing assembly 8, an annular supporting air bag 82 is matched with the inner side of the end part of the pipeline under the adjustment of an adjusting slide rail 85 and a lifting air cylinder 81, the pipeline is lifted after being fixed, in the suspension process, a pipe belt 6 is fixed on the outer wall of the pipeline, and the middle part of the pipe belt is fixed by means of electromagnet adsorption, so that the fixing is convenient and fast;
secondly, the pipeline is continuously lifted to the position between the shockproof swing plates 5 for clamping, so that the pipeline cannot vibrate in the support 1 to cause pipeline offset when the pipeline is pushed to be transported by the support 1, and the hoisting stability is improved;
thirdly, reaching the upper part of the groove of the buried pipe, enabling the support 1 to cross two sides of the pipeline laying groove, then submerging the pipeline by using the transmission wheel set 4, placing the pipeline into the groove, then disconnecting the pipe belt 6 connecting structure, and then placing the pipeline by using the lifting cylinder 81 until the pipeline is stable in the groove;
fourthly, the gas in the air bag is discharged, the supporting connection relation between the air bag and the inner wall of the pipeline is released, and the suspension bracket 7 is lifted to push the bracket 1, so that the next pipeline can be lifted.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", "first", "second", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a pipeline handling equipment for pipeline construction is laid, includes support (1), its characterized in that, the top fixedly connected with top frame (10) of support (1), and the top foreign currency fixed connection of top frame (10) have rain top (3), the both sides of top frame (10) are equipped with horizontal slide rail (9), the outer wall sliding connection of horizontal slide rail (9) has vertical slide rail (11), and the bottom sliding connection of vertical slide rail (11) has back timber (12), the bilateral symmetry of back timber (12) is equipped with drive pulley group (4), and the bottom of back timber (12) suspends fixedly connected with suspension bracket (7) through the drive pulley group (4) of both sides in midair, the inboard distribution in bottom of suspension bracket (7) has four at least pipe areas (6), the both ends bottom side of suspension bracket (7) all is equipped with pipe end fixed subassembly (8), and fixed subassembly (8) and pipe area (6) are located same horizontal plane, the outer walls of two sides of the top beam (12) are symmetrically provided with shockproof swinging plates (5).
2. The pipeline lifting equipment for pipeline construction and laying as claimed in claim 1, wherein winding motors (41) are symmetrically and fixedly connected to two sides of the outer wall of the top beam (12), and winding disks (42) are connected to output shafts of the winding motors (41).
3. The pipeline lifting equipment for pipeline construction and laying is characterized in that the transmission wheel set (4) consists of a transfer wheel (43), a suspension wheel (44) and a suspension steel wire, and the transfer wheel (43) and the suspension wheel (44) are in transmission connection with the winding disc (42) through the suspension steel wire.
4. The pipeline lifting and transporting equipment for pipeline construction and laying as claimed in claim 3, wherein the bottom ends of the suspension wires are connected to the outer wall of the end part of the suspension frame (7).
5. The pipeline lifting equipment for pipeline construction laying as claimed in claim 1, wherein the pipe end fixing assembly (8) is composed of an adjusting slide rail (85), a driving assembly (84), an air pump (83), an annular supporting air bag (82) and a lifting air cylinder (81), the lifting air cylinder (81) is located on the outer wall of the bottom end of the suspension frame (7), one end of a piston rod of the lifting air cylinder (81) is connected to the outer wall of the top end of the adjusting slide rail (85), a sliding seat is arranged at the bottom end of the adjusting slide rail (85), the annular supporting air bag (82) is arranged on the outer wall of the end portion of the sliding seat, the air pump (83) is arranged on the outer wall of the other side of the sliding seat, the air pump (83) is connected with the annular supporting air bag (82) through a pipeline, and the end portion of the driving assembly (84) is connected with the inner side of the sliding seat.
6. The pipeline lifting equipment for pipeline construction and laying as claimed in claim 5, wherein the driving assembly (84) is composed of a stepping motor and a lead screw, an output shaft of the stepping motor is connected to the outer wall of one end of the lead screw, and the outer wall of the lead screw is connected to the inner wall of the sliding seat in a transmission engagement mode.
7. The pipeline lifting equipment for pipeline construction and laying as claimed in claim 1, wherein the pipe belt (6) is composed of two belts (61) and two pipe cushions (62) with built-in electromagnets, the middle parts of the two belts (61) are connected through the two pipe cushions (62) with built-in electromagnets at the end parts, and the electromagnet is arranged at the joint of the pipe cushions (62) with built-in electromagnets.
8. The pipeline lifting equipment for pipeline construction and laying as claimed in claim 1, wherein the inner side of the bottom end of the anti-vibration swing plate (5) is provided with a shock-absorbing rubber block, and the shock-absorbing rubber block is arranged on the outer wall of the suspension frame (7) in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110793397.4A CN113526357A (en) | 2021-07-14 | 2021-07-14 | Pipeline lifting equipment for laying pipeline construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110793397.4A CN113526357A (en) | 2021-07-14 | 2021-07-14 | Pipeline lifting equipment for laying pipeline construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113526357A true CN113526357A (en) | 2021-10-22 |
Family
ID=78098975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110793397.4A Pending CN113526357A (en) | 2021-07-14 | 2021-07-14 | Pipeline lifting equipment for laying pipeline construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113526357A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115057368A (en) * | 2022-08-18 | 2022-09-16 | 山东迈易特传动有限公司 | Pipeline installation equipment and method for underground pipeline |
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| CN111692425A (en) * | 2020-06-29 | 2020-09-22 | 扬州市通达建设发展有限公司 | Buried water pipeline construction laying equipment |
| CN211594763U (en) * | 2020-02-21 | 2020-09-29 | 中国水利水电第四工程局有限公司 | PCCP pipeline handling frock |
| CN213037266U (en) * | 2020-06-18 | 2021-04-23 | 恒大新能源技术(深圳)有限公司 | Electricity core case loading attachment |
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|---|---|---|---|---|
| CN102219147A (en) * | 2011-05-28 | 2011-10-19 | 长城汽车股份有限公司 | Frame rolling-over and transporting lifting appliance |
| US20140217050A1 (en) * | 2013-02-06 | 2014-08-07 | Par Systems, Inc. | Relocatable fine motion positioner assembly on an overhead crane |
| CN103241639A (en) * | 2013-05-29 | 2013-08-14 | 重庆钢铁(集团)有限责任公司 | Electromagnetic buffer device specially used for hoisting and transporting steel plates in steel plants |
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| CN105909865A (en) * | 2016-06-15 | 2016-08-31 | 青岛理工大学 | Underwater air bag balance submarine pipeline repairing device and method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115057368A (en) * | 2022-08-18 | 2022-09-16 | 山东迈易特传动有限公司 | Pipeline installation equipment and method for underground pipeline |
| CN115057368B (en) * | 2022-08-18 | 2022-11-01 | 山东迈易特传动有限公司 | Pipeline installation equipment and method for underground pipeline |
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Application publication date: 20211022 |
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| WD01 | Invention patent application deemed withdrawn after publication |