CN114770022A - Heating power pipeline installs auxiliary device - Google Patents
Heating power pipeline installs auxiliary device Download PDFInfo
- Publication number
- CN114770022A CN114770022A CN202210539207.0A CN202210539207A CN114770022A CN 114770022 A CN114770022 A CN 114770022A CN 202210539207 A CN202210539207 A CN 202210539207A CN 114770022 A CN114770022 A CN 114770022A
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- Prior art keywords
- block
- lifting
- base
- lifting mechanism
- rod
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- 238000010438 heat treatment Methods 0.000 title claims description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 81
- 238000009434 installation Methods 0.000 claims abstract description 13
- 230000001360 synchronised effect Effects 0.000 claims abstract description 6
- 230000003028 elevating effect Effects 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 abstract description 10
- 238000003466 welding Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G13/00—Roller-ways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors
- B65G39/10—Arrangements of rollers
- B65G39/12—Arrangements of rollers mounted on framework
- B65G39/18—Arrangements of rollers mounted on framework for guiding loads
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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
- F16L1/06—Accessories therefor, e.g. anchors
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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
- F16L1/06—Accessories therefor, e.g. anchors
- F16L1/09—Accessories therefor, e.g. anchors for bringing two tubular members closer to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses an auxiliary device for thermal pipeline installation, which comprises a base, a binding belt and a lifting mechanism, wherein the lower end of the base is provided with a supporting leg, the upper end of the base is provided with a machine cabin, a hydraulic cylinder is arranged in the machine cabin, the upper end of the hydraulic cylinder is provided with the lifting mechanism in sliding fit with the inner wall of the machine cabin, the upper end of the lifting mechanism is matched with a lifting mechanism in horizontal sliding, the binding belt is connected with the lifting mechanism for fixing a thermal pipeline, two sides of the lifting mechanism are connected with conveying mechanisms in synchronous sliding, and the conveying mechanisms are connected with the base. The butt joint device can replace lifting large-scale equipment, supports two ends of a heat distribution pipeline, adjusts the height and the position of the heat distribution pipeline and translates along the axis direction to realize butt joint between the pipelines, avoids occupying the lifting equipment for a long time, saves the cost, is simple and convenient to operate, and improves the butt joint efficiency of the pipelines; the device can adapt to different mounting heights of pipelines, and the commonality is strong, and application range is wide.
Description
Technical Field
The invention relates to the technical field of thermal pipeline installation, in particular to an auxiliary device for thermal pipeline installation.
Background
The heat pipe network is also called a heat pipeline, and starts from a boiler room, a direct-fired machine room, a heat supply center and the like, and leads heat sources to a heat inlet of a building. A plurality of heat supply pipelines form a pipe network.
When laying on the ground, the heating power pipeline needs to be supported at the joint of the supporting column to the heating power pipeline, and the pipelines are fixed by welding, so that when mounting, the adjacent pipelines need to be butted, and the height and the position of the pipelines need to be adjusted. At present, when a thermal pipeline is installed, the thermal pipeline is lifted and installed through large lifting equipment, and the position of the thermal pipeline is adjusted, the lifting equipment is required to suspend the pipeline all the time in the butt joint and welding processes of the pipeline, so that the lifting equipment is continuously occupied, the lifting cost is increased, and the lifting efficiency of other pipelines is reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the auxiliary device for the installation of the heat distribution pipeline, which can replace hoisting large-scale equipment, support, adjust the height and the position of the two ends of the heat distribution pipeline and translate along the axis direction to realize the butt joint between the pipelines, avoid the occupation of hoisting equipment for a long time, save the cost, have simple and convenient operation and improve the butt joint efficiency of the pipelines; the device can adapt to different mounting heights of pipelines, and has strong universality and wide application range.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a heating power pipeline installation auxiliary device, includes base, bandage and elevating system, the lower extreme of base is equipped with the supporting leg, and the upper end of base is equipped with the machine storehouse, be equipped with the pneumatic cylinder in the machine storehouse, the upper end of pneumatic cylinder be equipped with machine storehouse inner wall sliding fit's elevating system, elevating system's upper end cooperation has horizontal slip to lift the mechanism, and the bandage is connected with lifting mechanism and is used for fixed heating power pipeline, lifting mechanism's both sides are connected with synchronous gliding conveying mechanism, conveying mechanism is connected with the base.
Preferably, the lifting mechanism comprises a lifting seat, the two sides of the lifting seat are provided with sliding blocks, the inner wall of the machine cabin is provided with a guide rail matched with the sliding blocks, and the bottom of the lifting seat is provided with a top block connected with a hydraulic cylinder.
Preferably, be equipped with the spout on the lift seat, the both ends of lift seat are equipped with the limiting plate, are connected with the second guide bar between two limiting plates, and the below of lift seat is equipped with the lead screw of being connected with the limiting plate, the one end of lead screw is equipped with the handle, is equipped with on the lateral wall of base with lead screw complex groove of stepping down, the lifting mechanism includes the tray, the lower extreme of tray is equipped with the movable block, be equipped with on the movable block with second guide bar complex second guiding hole, the lower extreme of movable block be equipped with spout complex connecting block, the lower extreme of connecting block is equipped with synchronizing block, be equipped with on the synchronizing block with lead screw thread fit's drive hole.
Preferably, the support block is in a long strip shape, the upper end of the support block is in a concave structure, and the two ends of the support block are respectively provided with a pull ring and a drag hook which are connected with the binding band.
Preferably, the conveying mechanism comprises a conveying roller and a supporting rod, a first guide hole is formed in the supporting rod, a first guide rod matched with the first guide hole is arranged at the upper end of the base, a rotating shaft of the conveying roller is connected with the supporting rod through a supporting rod, and an inclined stop block is arranged at the upper end of the supporting rod.
Preferably, a push rod is vertically arranged on the side wall of the supporting rod, and a push groove matched with the push rod is arranged at the end part of the synchronizing block.
Preferably, the two ends of the first guide rod are connected with the base through limiting blocks, and the conveying mechanism is located between the limiting blocks.
Preferably, the ejector block is a U-shaped mechanism, and the ejector block is sleeved on the outer side of the screw rod.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can replace lifting large-scale equipment, supports two ends of a heat distribution pipeline, adjusts the height and the position of the heat distribution pipeline and translates the heat distribution pipeline along the axial direction to realize the butt joint between the pipelines, avoids occupying the lifting equipment for a long time, saves the cost, has simple and convenient operation and improves the butt joint efficiency of the pipelines; the device can adapt to different mounting heights of pipelines, and the commonality is strong, and application range is wide.
2. According to the invention, the synchronous adjustment of the conveying mechanism and the lifting mechanism in the horizontal direction can be realized through the screw rod of the lifting mechanism, so that the conveying mechanism and the lifting mechanism are always in position correspondence, the conveying mechanism can be supported and conveyed after the lifting mechanism descends the pipeline, the position adjusting speed is increased, the lifting mechanism and the conveyor can relatively move in the height direction, the switching between lifting and supporting conveying is realized, the use is convenient, the lifting mechanism drives the lifting mechanism to realize synchronous lifting, and the adjustment is convenient.
Drawings
FIG. 1 is a schematic perspective view of the present invention in use;
FIG. 2 is a front view of the present invention in use;
FIG. 3 is a front view of the present invention;
FIG. 4 is a left side view of the present invention;
FIG. 5 is a sectional view A-A of FIG. 3;
FIG. 6 is a top view of the base;
FIG. 7 is a schematic structural view of a conveying mechanism;
FIG. 8 is a schematic structural view of the lift mechanism;
FIG. 9 is a first schematic structural diagram of the lifting mechanism;
fig. 10 is a second schematic structural diagram of the lifting mechanism.
In the figure: 1-a conveying mechanism; 101-a stopper; 102-a conveying roller; 103-a support bar; 104-a supporting rod; 105-a first pilot hole; 106-a push rod; 2-a base; 201-supporting legs; 202-a limiting block; 203-a first guide bar; 204-cabin; 205-a guide rail; 206-a slider; 207-hydraulic cylinder; 208-a yield slot; 3-binding band; 4-a lifting mechanism; 401-a support block; 402-a pull ring; 403-pulling hooks; 404-a moving block; 405-a second pilot hole; 406-connection block; 407-sync block; 408-pushing the groove; 409-drive hole; 5-a lifting mechanism; 501-a second guide rod; 502-a limiting plate; 503-lifting seat; 504-top block; 505-a lead screw; 506-a handle; 507-chute.
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. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As shown in fig. 1-6, an auxiliary device for thermal pipeline installation comprises a base 2, a binding belt 3 and a lifting mechanism 5, wherein the lower end of the base 2 is provided with a supporting leg 201, the upper end of the base 2 is provided with a machine cabin 204, a hydraulic cylinder 207 is arranged in the machine cabin 204, the upper end of the hydraulic cylinder 207 is provided with the lifting mechanism 5 which is in sliding fit with the inner wall of the machine cabin 204, the upper end of the lifting mechanism 5 is matched with a lifting mechanism 4 which horizontally slides, the binding belt 3 is connected with the lifting mechanism 4 for fixing the thermal pipeline, two sides of the lifting mechanism 4 are connected with conveying mechanisms 1 which synchronously slide, the conveying mechanisms 1 are connected with the base 2, one end of the thermal pipeline can be lifted by the lifting mechanism 4, simultaneously, the lifting mechanism 4 can be adjusted together with the conveying mechanism 1 in a horizontal sliding mode, the lifting mechanism 4 places the pipeline at the upper end of the conveying mechanism 1, and the pipeline can be moved along the pipeline axis in a paying-off mode, so that butt joint between the pipelines is facilitated.
The concrete realization structure and effect are as follows:
as shown in fig. 9-10, the lifting mechanism 5 includes a lifting base 503, two sides of the lifting base 503 are provided with sliders 206, the inner wall of the cabin 204 is provided with a guide rail 205 engaged with the sliders 206, the bottom of the lifting base 503 is provided with a top block 504 connected with a hydraulic cylinder 207, the lifting base 503 is lifted by the hydraulic cylinder 207, and the lifting base 503 is slidably engaged with the inner wall of the cabin 204 to ensure the stability of lifting and supporting.
The lifting seat 503 is provided with a sliding groove 507, two ends of the lifting seat 503 are provided with limit plates 502, a second guide rod 501 is connected between the two limit plates 502, a lead screw 505 connected with the limit plates 502 is arranged below the lifting seat 503, one end of the lead screw 505 is provided with a handle 506, the top block 504 is a U-shaped mechanism, and the top block 504 is sleeved outside the lead screw 505. The side wall of the base 2 is provided with a abdicating groove 208 matched with the screw rod 505, as shown in fig. 8, the lifting mechanism 4 comprises a supporting block 401, the lower end of the supporting block 401 is provided with a moving block 404, the moving block 404 is provided with a second guide hole 405 matched with the second guide rod 501, the lower end of the moving block 404 is provided with a connecting block 406 matched with the sliding groove 507, the lower end of the connecting block 406 is provided with a synchronizing block 407, and the synchronizing block 407 is provided with a driving hole 409 in threaded fit with the screw rod 505.
The lead screw 505 is rotated through the handle 506, so that the lifting mechanism 4 can be driven to move horizontally to adjust the lifting position, meanwhile, the lifting seat 503 can drive the lifting mechanism 4 to lift synchronously, the lifting of the pipeline is realized, the matching structure between the lifting mechanism 4 and the lifting seat 503 is compact, and the space is greatly saved.
Wherein, the tray 401 is rectangular form, and the upper end of tray 401 is the indent structure, prevents that the pipeline from rolling, and the both ends of tray 401 are equipped with pull ring 402 and drag hook 403 be connected with bandage 3 respectively, can be fixed between pipeline and the tray 401, and stability and firm when guaranteeing to lift ensures construction safety.
As shown in fig. 7, the conveying mechanism 1 includes a conveying roller 102 and a supporting rod 104, the conveying mechanisms 1 are disposed on both sides of the lifting mechanism 4, a first guide hole 105 is disposed on the supporting rod 104, a first guide rod 203 matched with the first guide hole 105 is disposed on the upper end of the base 2, a rotating shaft of the conveying roller 102 is connected with the supporting rod 104 through a support rod 103, an inclined stopper 101 is disposed on the upper end of the supporting rod 104, and the stopper 101 can shield both sides of the pipeline to prevent the pipeline from falling.
In order to enable the lifting mechanism 4 and the conveying mechanism 1 to realize synchronous movement, a push rod 106 is vertically arranged on the side wall of the supporting rod 104, a push groove 408 matched with the push rod 106 is formed in the end portion of a synchronizing block 407, the synchronizing block 407 can drive the conveying mechanism 1 and the lifting mechanism 4 to synchronously move through horizontally pushing the push rod 106, meanwhile, the synchronizing block 407 can slide up and down along the push rod 106, the lifting mechanism 4 can perform relative movement in height between the conveying mechanisms 1, the conveying mechanisms 1 are guaranteed to be corresponding to the positions of the lifting mechanisms 4 all the time, the pipelines can be supported and conveyed at any time, and convenience in adjustment is realized.
The two ends of the first guide rod 203 are connected with the base 2 through the limiting blocks 202, the conveying mechanism 1 is located between the limiting blocks 202, and the limiting blocks 202 can limit the strokes of the conveying mechanism 1 and the lifting mechanism 4, so that a protection effect is achieved.
As shown in fig. 1-2, when in use, the device is arranged at two ends of a pipeline for supporting, the pipeline is placed on a supporting block 401, the height and position of the pipeline are adjusted through a supporting mechanism 4, after the adjustment is finished, the supporting mechanism 4 is descended to enable the pipeline to be positioned on a conveying roller 102, the pipeline is pushed to enable the end part of the pipeline to be in butt joint with the end part of an adjacent pipeline, the pipeline is fixed through a binding band 3, then the welding of a pipeline joint is carried out, after the welding is finished, the binding band 3 is loosened, the supporting mechanism 4 is slowly descended to enable the pipeline to be positioned on a bottom supporting column.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. The utility model provides a heating power pipeline installs auxiliary device, includes base, bandage and elevating system, its characterized in that: the lower extreme of base is equipped with the supporting leg, and the upper end of base is equipped with the machine storehouse, be equipped with the pneumatic cylinder in the machine storehouse, the upper end of pneumatic cylinder be equipped with machine storehouse inner wall sliding fit's elevating system, elevating system's upper end cooperation has the horizontal slip to lift the mechanism, and the bandage is connected with lifting the mechanism and is used for fixed heating power pipeline, the both sides of lifting the mechanism are connected with synchronous gliding conveying mechanism, conveying mechanism is connected with the base.
2. A thermal conduit installation aid as claimed in claim 1, wherein: the lifting mechanism comprises a lifting seat, sliding blocks are arranged on two sides of the lifting seat, a guide rail matched with the sliding blocks is arranged on the inner wall of the machine cabin, and a top block connected with the hydraulic cylinder is arranged at the bottom of the lifting seat.
3. A thermal conduit installation aid as claimed in claim 2, wherein: the lifting seat is provided with a sliding groove, limiting plates are arranged at two ends of the lifting seat, a second guide rod is connected between the two limiting plates, a lead screw connected with the limiting plates is arranged below the lifting seat, a handle is arranged at one end of the lead screw, a stepping groove matched with the lead screw is formed in the side wall of the base, the lifting mechanism comprises a supporting block, a moving block is arranged at the lower end of the supporting block, a second guide hole matched with the second guide rod is formed in the moving block, a connecting block matched with the sliding groove is arranged at the lower end of the moving block, a synchronizing block is arranged at the lower end of the connecting block, and a driving hole matched with the lead screw in a thread is formed in the synchronizing block.
4. A thermal conduit installation aid as claimed in claim 3, wherein: the support block is in a long strip shape, the upper end of the support block is in an inwards concave structure, and the two ends of the support block are respectively provided with a pull ring and a drag hook which are connected with the binding band.
5. A thermal conduit installation aid as claimed in claim 3, wherein: the conveying mechanism comprises a conveying roller and a supporting rod, a first guide hole is formed in the supporting rod, a first guide rod matched with the first guide hole is arranged at the upper end of the base, a rotating shaft of the conveying roller is connected with the supporting rod through a supporting rod, and an inclined stop block is arranged at the upper end of the supporting rod.
6. A thermal conduit installation aid as claimed in claim 5, wherein: the side wall of the supporting rod is vertically provided with a push rod, and the end part of the synchronizing block is provided with a push groove matched with the push rod.
7. A thermal conduit installation aid as claimed in claim 5, wherein: the two ends of the first guide rod are connected with the base through limiting blocks, and the conveying mechanism is located between the limiting blocks.
8. A thermal conduit installation aid as claimed in claim 3, wherein: the ejector block is a U-shaped mechanism, and the ejector block is sleeved on the outer side of the screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210539207.0A CN114770022B (en) | 2022-05-18 | 2022-05-18 | Auxiliary device for installing thermal pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210539207.0A CN114770022B (en) | 2022-05-18 | 2022-05-18 | Auxiliary device for installing thermal pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114770022A true CN114770022A (en) | 2022-07-22 |
| CN114770022B CN114770022B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210539207.0A Active CN114770022B (en) | 2022-05-18 | 2022-05-18 | Auxiliary device for installing thermal pipeline |
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| CN (1) | CN114770022B (en) |
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| CN206153831U (en) * | 2016-11-02 | 2017-05-10 | 青岛新力通工业有限责任公司 | Horizontal pipe group is to reaching spin welding isolated plant |
| CN106392444A (en) * | 2016-11-09 | 2017-02-15 | 国网山东省电力公司济南市长清区供电公司 | Fixed-distance conveying, rotating and clamping device for electric tower pipe |
| CN206348328U (en) * | 2017-01-03 | 2017-07-21 | 天津市同鑫泰钢管制造有限公司 | A kind of metal tube monitor station |
| CN207293262U (en) * | 2017-07-24 | 2018-05-01 | 广东科立工业技术股份有限公司 | A kind of lifting roller-conveying |
| CN109048192A (en) * | 2018-08-23 | 2018-12-21 | 合肥中亚传感器有限责任公司 | Lifting type operating platform is used in a kind of welding of electromagnetic flowmeter large-diameter catheter |
| CN212410256U (en) * | 2020-06-27 | 2021-01-26 | 山西新通成套设备有限公司 | Hydraulic press steel pipe lift centering device |
| CN213289262U (en) * | 2020-07-01 | 2021-05-28 | 航成（天津）科技有限公司 | Lifting screw force balance weight device of positioner |
| KR102192444B1 (en) * | 2020-08-05 | 2020-12-16 | (주) 국제플랜트 | Open chuck clamp welder |
| CN111761289A (en) * | 2020-08-17 | 2020-10-13 | 陈红 | Clamping device for welding steel pipe |
| CN112207503A (en) * | 2020-09-07 | 2021-01-12 | 宜昌江峡船用机械有限责任公司 | Accurate adjustment butt joint device and method for large pressure container |
| KR20220049783A (en) * | 2020-10-15 | 2022-04-22 | 한국조선해양 주식회사 | Batch welding apparatus for make up cylindrical tank |
| CN113385829A (en) * | 2021-04-30 | 2021-09-14 | 河南勤工机器人有限公司 | Rotating device for laser cutting |
| CN113369759A (en) * | 2021-06-30 | 2021-09-10 | 王晓光 | Natural gas line welding equipment for municipal administration |
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