CN112958998A - Walking type flame correcting device - Google Patents
Walking type flame correcting device Download PDFInfo
- Publication number
- CN112958998A CN112958998A CN202110305894.5A CN202110305894A CN112958998A CN 112958998 A CN112958998 A CN 112958998A CN 202110305894 A CN202110305894 A CN 202110305894A CN 112958998 A CN112958998 A CN 112958998A
- Authority
- CN
- China
- Prior art keywords
- flame
- walking
- correction
- gas
- nozzles
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims description 31
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000003466 welding Methods 0.000 abstract description 42
- 239000007789 gas Substances 0.000 description 85
- 229910000831 Steel Inorganic materials 0.000 description 19
- 239000010959 steel Substances 0.000 description 19
- 230000006978 adaptation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a walking flame correcting device, which solves the technical problems of large correcting labor amount of workers and large correcting error caused by manual operation in the prior art that welding seam correction is carried out by manual handheld equipment. The flame welding device comprises a walking trolley, a plurality of flame nozzles arranged on the walking trolley and used for correcting welding seams, and an air conveying mechanism arranged on the walking trolley, connected with an external air source and connected with the flame nozzles and used for supplying air to the flame nozzles. The flame correction device has the advantages of simple structure, scientific and reasonable design and convenient use, adopts the traveling trolley to drive the flame nozzles to simultaneously perform flame correction on a plurality of welding seams, has high correction efficiency and stable operation, and can effectively reduce correction errors and ensure correction quality.
Description
Technical Field
The invention belongs to the technical field of steel structure assembling equipment, and particularly relates to a walking type flame correcting device.
Background
The steel structure is widely applied to the fields of bridges, large-scale plants, venues, super high-rise buildings and the like because of light dead weight, high strength and simple and convenient construction, and mainly comprises steel beams, steel columns, steel trusses and other members made of section steel, steel plates and the like, and all the members or parts are usually connected by welding seams, bolts or rivets. The steel member often can produce the deformation after the welding, need rectify, the steel member is not only welding seam in large quantity after the welding equipment, and the welding seam is long again straight, and work load is very big when it rectifies, for example there is a large amount of U rib welding on the bridge steel box girder, when traditional welding seam is rectified, generally the handheld flame of workman rectifies the rifle and rectifies a welding seam one by one and rectifies, not only rectifies work efficiency low, and the workman rectifies intensity of labour big, but also easily because of the big correction effect that influences of artificial operation error.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a walking flame correcting device is provided to solve at least some of the technical problems.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a walking flame correcting unit, includes the walking dolly, and a plurality of is located the flame nozzle that is used for carrying out the correction to the butt weld on the walking dolly to and locate on the walking dolly and be connected with external air supply and be connected with the flame nozzle and be used for the gas transmission mechanism for flame nozzle air feed.
Further, the gas transmission mechanism comprises a busbar, and the busbar is provided with a gas inlet connected with an external gas source and a gas outlet pipe connected with the flame nozzle.
Furthermore, the number of the air outlet pipes is not less than that of the flame nozzles, and each flame nozzle is correspondingly connected with one air outlet pipe.
Furthermore, the number of the air outlet pipes is the same as that of the flame nozzles, and the flame nozzles are correspondingly connected with the air outlet pipes one by one.
Furthermore, the number of the bus bars is three, and each flame nozzle is respectively connected with one air outlet pipe in each bus bar.
Furthermore, the air outlet pipe is provided with an adjusting valve.
Furthermore, the device also comprises a confluence seat arranged on the walking trolley, and the gas transmission mechanism is fixedly arranged on the walking trolley through the confluence seat.
Further, still include the displacement adjustment mechanism who installs on the seat that converges, the flame nozzle passes through the displacement adjustment mechanism and installs on the walking dolly.
Furthermore, the displacement adjusting mechanism comprises an adjusting rod and an adjusting sleeve sleeved on the adjusting rod and capable of adjusting displacement in the length direction of the adjusting rod, and the flame nozzle is installed on the adjusting sleeve.
Furthermore, the adjusting sleeve is in threaded connection with the adjusting rod.
Compared with the prior art, the invention has the following beneficial effects:
the flame correction device has the advantages of simple structure, scientific and reasonable design and convenient use, adopts the traveling trolley to drive the flame nozzles to simultaneously perform flame correction on a plurality of welding seams, has high correction efficiency and stable operation, and can effectively reduce correction errors and ensure correction quality.
The walking type flame correction device mainly comprises a walking trolley, a plurality of flame nozzles and a gas transmission mechanism, wherein the gas transmission mechanism is connected with an external gas source on one hand and connected with the flame nozzles on the other hand to provide gas required by flame correction for the flame nozzles, each flame nozzle corresponds to one welding line, the walking trolley runs along the length direction of the welding line, and the flame nozzles spray fire to correct the flame of the welding lines, so that the labor intensity of personnel correction can be effectively reduced, the flame nozzles spray fire simultaneously for correction, and the correction efficiency can be improved in multiples.
The gas transmission mechanism comprises a busbar, the busbar is of a tubular structure with two sealed ends, an air inlet and an air outlet are arranged on the busbar, the air inlet is hermetically connected with an external gas source through a pipeline, the air outlet is hermetically connected with a flame nozzle through a pipeline, the air inlet and the external gas source pipeline, the air outlet and the flame nozzle pipeline are hermetically connected in a conventional sealing mode, one busbar is provided with one air inlet and a plurality of air outlets, the number of the air outlets on one busbar is not less than that of the flame nozzles, the number of the busbars is three, and generally one busbar supplies a gas or combustion-supporting gas to the flame nozzles, so that each flame nozzle is simultaneously connected with the three busbars. The regulating valve is arranged on the air outlet pipe, so that the air flow is conveniently regulated, and the correction is ensured to be smoothly carried out.
The flame nozzle is detachably arranged on the adjusting sleeve, preferably arranged on the adjusting sleeve through a hoop, when the adjusting sleeve is adjusted to a set position, the flame nozzle is arranged on the adjusting sleeve, and the displacement adjustment is very convenient and flexible, so that flame correction of welding seams with different intervals is facilitated.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a schematic structural view of the gas delivery mechanism of the present invention.
FIG. 4 is a top view of the present invention.
FIG. 5 is a schematic view of the present invention with all of the flame nozzles located on the same side of the traveling carriage.
Wherein, the names corresponding to the reference numbers are:
1-traveling trolley, 2-flame nozzle, 3-gas transmission mechanism, 4-busbar, 5-gas inlet, 6-gas outlet pipe, 7-regulating valve, 8-busbar seat, 9-regulating rod, 10-regulating sleeve, 11-welding seam component and 12-welding seam position.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and thus, it should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; of course, mechanical connection and electrical connection are also possible; alternatively, they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 5, the walking flame correction device provided by embodiment 1 of the invention has the advantages of simple structure, scientific and reasonable design and convenient use, and the walking trolley is adopted to drive a plurality of flame nozzles to simultaneously perform flame correction on a plurality of welding seams, so that the correction efficiency is high, the running is stable, the correction error can be effectively reduced, and the correction quality is ensured. The welding line correcting device comprises a walking trolley 1, a plurality of flame nozzles 2 which are arranged on the walking trolley 1 and used for correcting welding lines, and a gas transmission mechanism 3 which is arranged on the walking trolley 1, connected with an external gas source and connected with the flame nozzles 2 and used for supplying gas to the flame nozzles 2.
The walking type flame correction device mainly comprises a walking trolley, flame nozzles and a gas transmission mechanism, wherein the walking trolley walks on a welding seam component 11 along the length direction of a welding seam, the gas transmission mechanism is connected with an external gas source on one hand and the flame nozzles on the other hand and is used for providing gas required by flame correction for the flame nozzles, a plurality of flame nozzles are arranged, each flame nozzle corresponds to one welding seam position 12, the walking trolley runs along the length direction of the welding seam, and the flame nozzles fire to correct the flame of the welding seam at the corresponding welding seam position 12.
In embodiment 2 of the present invention, a gas transmission mechanism is preferably designed based on embodiment 1, and the gas transmission mechanism includes a bus bar provided with a gas inlet and a plurality of gas outlet pipes, so as to conveniently transmit fuel gas or combustion-supporting gas to the flame nozzle, and the gas transmission mechanism has a simple structure and is stable and safe.
In embodiment 3 of the invention, on the basis of embodiment 2, the number of the air outlet pipes 6 is preferably designed, the number of the air outlet pipes is not less than that of the flame nozzles 2, each flame nozzle 2 can be distributed to one air outlet pipe 6, and all the flame nozzles 2 on one set of equipment can be simultaneously corrected.
In embodiment 4 of the present invention, on the basis of embodiment 2, the number of the air outlet pipes 6 is preferably designed, and the number of the air outlet pipes is the same as the number of the flame nozzles 2, that is, it is ensured that each flame nozzle 2 can be assigned to one air outlet pipe 6, and that all the flame nozzles 2 in one set of equipment can be simultaneously calibrated, and meanwhile, the air outlet pipes 6 are connected with the flame nozzles 2 in a one-to-one correspondence manner, so that the structure is compact, and the number of pipes is not increased, thereby saving the manufacturing cost.
In embodiment 5 of the present invention, on the basis of embodiment 2, the number of the bus bars is preferably designed, and three bus bars can meet the requirement of correcting the combustion flame of the flame nozzle 2.
In embodiment 6 of the invention, on the basis of embodiment 2, the structure of the air outlet pipe 6 is preferably designed, and the air outlet pipe 6 is provided with the regulating valve 7, so that the flow of gas in the air outlet pipe 6 can be flexibly regulated, and the smooth correction of the flame nozzle 2 is ensured.
The invention can effectively adjust the position of the flame nozzle 2 on the walking trolley 1 by arranging the displacement adjusting mechanism, can be suitable for the correction of welding seams with different intervals, and can effectively enlarge the application range of quilting correction.
The steel structure is widely applied to the fields of bridges, large-scale plants, venues, super high-rise buildings and the like because of light dead weight, high strength and simple and convenient construction, and mainly comprises steel beams, steel columns, steel trusses and other members made of section steel, steel plates and the like, and all the members or parts are usually connected by welding seams, bolts or rivets. The steel member often can produce the deformation after the welding, need rectify, the steel member is not only welding seam in large quantity after the welding equipment, and the welding seam is long again straight, and work load is very big when it rectifies, for example there is a large amount of U rib welding on the bridge steel box girder, when traditional welding seam is rectified, generally the handheld flame of workman rectifies the rifle and rectifies a welding seam one by one and rectifies, not only rectifies work efficiency low, and the workman rectifies intensity of labour big, but also easily because of the big correction effect that influences of artificial operation error.
The invention provides a walking flame correcting device, which can correct a plurality of parallel welding lines at the same time, can automatically correct and run along with a walking trolley after the corrected position is adjusted at the initial stage, does not need manual real-time control for correction, reduces manual operation, runs stably, does not need special equipment, is not limited by sites, and has high working efficiency.
The invention mainly comprises a walking trolley, a bus bar, an adjusting rod, an adjusting sleeve, a flame nozzle and the like. The busbar and the adjusting rod are fixed on the walking trolley, and each flame nozzle is arranged on the adjusting rod through an adjusting sleeve. Each bus bar is provided with an air inlet and a plurality of air outlet pipes, the number of the bus bars is not less than the number (such as three) of input gas, and the number of the air outlets on the bus bars is not less than the number of the flame nozzles. The bus bar is fixed on the walking trolley through the bus base, and the adjusting rod is fixed on the walking trolley through the bus base. The adjusting rod is connected with the adjusting sleeve through threads, so that the positions of the adjusting rod, the adjusting sleeve and the flame nozzle can be conveniently and flexibly adjusted. And the air outlet pipes on the bus bars are all provided with regulating valves. The positions of the flame nozzles on the adjusting rods can be on two sides of the walking trolley or on the same side as required.
The gas transmission mechanism of the invention comprises a bus bar, the bus bar is a tubular structure with two sealed ends, the bus bar is provided with a gas inlet which is hermetically connected with an external gas source through a pipeline and a gas outlet which is hermetically connected with a flame nozzle through a pipeline, the gas inlet is positioned on the end surface of the top end of the bus bar, the gas inlet and the external gas source pipeline as well as the gas outlet and the flame nozzle pipeline are hermetically connected in a conventional sealing way, one bus bar is provided with one gas inlet and a plurality of gas outlet pipes, the number of the gas outlet pipes on one bus bar is not less than that of the flame nozzles, the number of the bus bars is three, and generally one bus bar supplies a gas or combustion-supporting gas for the flame nozzles, therefore, each flame. The regulating valve is arranged on the air outlet pipe, so that the air flow is conveniently regulated, and the correction is ensured to be smoothly carried out.
The flame nozzle is detachably arranged on the adjusting sleeve, preferably arranged on the adjusting sleeve through a hoop, when the adjusting sleeve is adjusted to a set position, the flame nozzle is arranged on the adjusting sleeve, and the displacement adjustment is very convenient and flexible, so that flame correction of welding seams with different intervals is facilitated.
Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, but not to limit the technical solutions, and certainly not to limit the patent scope of the present invention; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; that is, the technical problems to be solved by the present invention, which are not substantially changed or supplemented by the spirit and the concept of the main body of the present invention, are still consistent with the present invention and shall be included in the scope of the present invention; in addition, the technical scheme of the invention is directly or indirectly applied to other related technical fields, and the technical scheme is included in the patent protection scope of the invention.
Claims (10)
1. The utility model provides a walking flame correcting unit, its characterized in that, includes walking dolly (1), and a plurality of is located flame nozzle (2) that are used for carrying out the correction to the butt weld on walking dolly (1) to and locate on walking dolly (1) and be connected with external air supply and be connected with flame nozzle (2) and be used for being gas transmission mechanism (3) of flame nozzle (2) air feed.
2. A walking flame correction device as claimed in claim 1, characterized in that the gas transmission mechanism (3) comprises a busbar (4), the busbar (4) is provided with a gas inlet (5) connected with an external gas source, and a gas outlet (6) connected with the flame nozzle (2).
3. The walking flame correction device as claimed in claim 2, wherein the number of the gas outlet pipes (6) is not less than the number of the flame nozzles (2), and each flame nozzle (2) is correspondingly connected with one gas outlet pipe (6).
4. A walking flame correcting device according to claim 2, characterized in that the number of the outlet pipes (6) is the same as the number of the flame nozzles (2), and the flame nozzles (2) are connected with the outlet pipes (6) in a one-to-one correspondence.
5. A walking flame correction device as claimed in claim 2, wherein there are three busbars (4), and each flame nozzle (2) is connected with one gas outlet pipe (6) of each busbar (4).
6. A walking flame correcting device according to claim 2, characterized in that the outlet pipe (6) is provided with a regulating valve (7).
7. The walking flame correction device according to claim 1, further comprising a collecting base (8) arranged on the walking trolley (1), wherein the gas transmission mechanism (3) is fixedly arranged on the walking trolley (1) through the collecting base (8).
8. The walking flame correction device of claim 7, further comprising a displacement adjustment mechanism mounted on the confluence block (8), wherein the flame nozzle (2) is mounted on the walking trolley (1) through the displacement adjustment mechanism.
9. The walking flame correcting device of claim 8, characterized in that the displacement adjusting mechanism comprises an adjusting rod (9) and an adjusting sleeve (10) sleeved on the adjusting rod (9) and capable of adjusting the displacement in the length direction of the adjusting rod (9), and the flame nozzle (2) is mounted on the adjusting sleeve (10).
10. A walking flame correction device according to claim 9, characterized in that the adjusting sleeve (10) is in threaded connection with the adjusting rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110305894.5A CN112958998A (en) | 2021-03-23 | 2021-03-23 | Walking type flame correcting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110305894.5A CN112958998A (en) | 2021-03-23 | 2021-03-23 | Walking type flame correcting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112958998A true CN112958998A (en) | 2021-06-15 |
Family
ID=76278062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110305894.5A Pending CN112958998A (en) | 2021-03-23 | 2021-03-23 | Walking type flame correcting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112958998A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101454110A (en) * | 2006-05-29 | 2009-06-10 | 文钟泰 | Cutting apparatus |
| CN206717317U (en) * | 2017-05-26 | 2017-12-08 | 青岛北海船舶重工有限责任公司 | A kind of weld heating device |
| CN207888154U (en) * | 2018-01-18 | 2018-09-21 | 武汉一冶钢结构有限责任公司 | A kind of flame correction device |
| CN210614886U (en) * | 2019-09-20 | 2020-05-26 | 上海振华重工(集团)股份有限公司 | High-efficient many nozzles formula flame orthotic devices |
| CN111760933A (en) * | 2020-07-15 | 2020-10-13 | 江西江联环境工程装配制造有限公司 | Flame correction device and correction method |
| CN112247314A (en) * | 2020-11-10 | 2021-01-22 | 二十二冶集团装备制造有限公司 | Multi-torch-head flame cutting machine |
| CN214489475U (en) * | 2021-03-23 | 2021-10-26 | 中国五冶集团有限公司 | Walking type flame correcting device |
-
2021
- 2021-03-23 CN CN202110305894.5A patent/CN112958998A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101454110A (en) * | 2006-05-29 | 2009-06-10 | 文钟泰 | Cutting apparatus |
| US20090200714A1 (en) * | 2006-05-29 | 2009-08-13 | Jong-Tai Moon | Cutting apparatus |
| CN206717317U (en) * | 2017-05-26 | 2017-12-08 | 青岛北海船舶重工有限责任公司 | A kind of weld heating device |
| CN207888154U (en) * | 2018-01-18 | 2018-09-21 | 武汉一冶钢结构有限责任公司 | A kind of flame correction device |
| CN210614886U (en) * | 2019-09-20 | 2020-05-26 | 上海振华重工(集团)股份有限公司 | High-efficient many nozzles formula flame orthotic devices |
| CN111760933A (en) * | 2020-07-15 | 2020-10-13 | 江西江联环境工程装配制造有限公司 | Flame correction device and correction method |
| CN112247314A (en) * | 2020-11-10 | 2021-01-22 | 二十二冶集团装备制造有限公司 | Multi-torch-head flame cutting machine |
| CN214489475U (en) * | 2021-03-23 | 2021-10-26 | 中国五冶集团有限公司 | Walking type flame correcting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214489475U (en) | Walking type flame correcting device | |
| CN203486802U (en) | Balance arm and tower crane | |
| CN2923197Y (en) | Quick butt-jointing righting pipe-clamp | |
| CN214489474U (en) | Air feeding mechanism in walking type flame correction device | |
| CN112958998A (en) | Walking type flame correcting device | |
| CN108842915A (en) | A kind of rigid connection node and its processing installation method of steel construction rectangle rod piece | |
| CN104832784A (en) | Suspended ceiling structure of liquefied natural gas storage tank | |
| CN207393127U (en) | A kind of adjustable universal type drilling machine integral translation guide rail | |
| CN103628692B (en) | A kind of floor beam mounting bracket and use it to install the method for floor beam | |
| CN112958999A (en) | Air feeding mechanism in walking type flame correction device | |
| CN110270742B (en) | Air supply welding mechanism for welding all-steel inter-cooling tower tripod steel beams and construction method thereof | |
| CN210286438U (en) | Accurate adjustment control device of lifting device | |
| CN207657989U (en) | A kind of gatherer that floor is introduced to T-type web | |
| CN214168719U (en) | External two-way adjusting and matching device for main chord tube of steel arch rib | |
| CN218523155U (en) | Adjustable assembly type pipeline bracket | |
| CN208884716U (en) | A kind of rigid connection node of steel construction rectangle rod piece | |
| CN210281036U (en) | Air supply welding mechanism for welding tripod steel beam of all-steel indirect cooling tower | |
| CN203640313U (en) | Floor beam installing support | |
| CN210917039U (en) | Municipal bridge building support frame | |
| CN217596363U (en) | Rail vehicle for flame correction device | |
| CN210316453U (en) | Light modular combined suspension platform | |
| CN203439929U (en) | Crane truss | |
| CN206082172U (en) | Denitration high -temperature flue draws rod fixing structure | |
| CN205026387U (en) | Furred ceiling structure of liquefied natural gas storage tank | |
| CN207104075U (en) | Cantilevered submerged-arc welding welding gun height self-regulation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |