CN115324368A - A welding auxiliary structure for assembled prefabricated steel construction - Google Patents
A welding auxiliary structure for assembled prefabricated steel construction Download PDFInfo
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- CN115324368A CN115324368A CN202211068335.8A CN202211068335A CN115324368A CN 115324368 A CN115324368 A CN 115324368A CN 202211068335 A CN202211068335 A CN 202211068335A CN 115324368 A CN115324368 A CN 115324368A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
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- 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
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Joining Of Building Structures In Genera (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to the related technical field of building construction, in particular to a welding auxiliary structure for an assembled prefabricated steel structure, which comprises a first pre-positioning assembly, a second pre-positioning assembly, a connecting piece, a vertical steel beam, a positioning rod and a transverse steel beam; through setting up the locating lever among the through-hole on vertical girder steel, and set first prepositioning subassembly to by the one-level locating frame, the first grade otic placode of connecting, a supporting seat, the mount pad, T type bolt and grip block combination constitute, and set second prepositioning subassembly to constitute by second grade locating frame and second grade otic placode combination, and set up the one-level constant head tank on the inside wall of one-level locating frame, and set up the second grade constant head tank on the inside wall of second grade locating frame, thereby imbed to among one-level constant head tank and the second grade constant head tank through the locating lever, thereby play assistance-localization real-time's purpose to horizontal girder steel through it.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a welding auxiliary structure for an assembly type prefabricated steel structure.
Background
The assembly type steel structure is prefabricated and then assembled; the method comprises the steps of firstly refining drawings according to nodes, respectively prefabricating a beam, a column and a connecting piece, and coating antirust paint, wherein welding is a common means in the welding connection process of an assembly type steel structure, a hoisting structure is generally adopted to hoist the steel beam structure to the sky in the welding process, and then welding connection is carried out on the beam body structure through welding equipment.
Disclosure of Invention
The present invention is directed to a welding assistance structure for prefabricated steel structures, which solves the above problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme: a welding assistance structure for an assembled prefabricated steel structure, the welding assistance structure of the assembled prefabricated steel structure comprising:
the first pre-positioning assembly is formed by combining a primary positioning frame, a primary connecting lug plate, a supporting seat, a mounting seat, a T-shaped bolt and a clamping plate, wherein a primary connecting hole is formed in the primary connecting lug plate, and a primary positioning groove is formed in the inner side wall of the primary positioning frame;
the second pre-positioning assembly is formed by combining a secondary positioning frame and a secondary connecting lug plate, a secondary connecting hole is formed in the secondary connecting lug plate, a secondary positioning groove is formed in the inner side wall of the secondary positioning frame, the primary connecting hole is arranged corresponding to the secondary positioning frame, and the secondary positioning groove is arranged corresponding to the primary positioning groove;
the first-stage connecting lug plate on the first pre-positioning assembly and the second-stage connecting lug plate on the second pre-positioning assembly are positioned and fixed through the connecting piece;
the vertical steel beam is fixed on a base on the foundation and is provided with a through hole;
the positioning rod is inserted in the through hole in the vertical steel beam, and the first pre-positioning assembly and the second pre-positioning assembly are pre-positioned through the positioning rod;
the transverse steel beam is positioned through the first pre-positioning assembly.
Preferably, second grade constant head tank and one-level constant head tank are semi-circular notch, and its notch diameter value between them all is identical with the diameter value of locating lever, and second grade constant head tank and the equal symmetry of one-level constant head tank are provided with a set ofly, and between the tank bottom of both sides second grade constant head tank apart from the value identical with the diameter value of locating lever, and the both ends of locating lever all imbed in second grade constant head tank and one-level constant head tank enclose close among the circular slot mouth that forms.
Preferably, the inner contour dimension of the frame body formed by enclosing the first-stage positioning frame and the second-stage positioning frame is matched with the outer contour dimension of the cross section of the vertical steel beam, and the vertical steel beam is clamped by the first-stage positioning frame and the second-stage positioning frame.
Preferably, be integrated into one piece between one-level locating frame, the first grade otic placode of connecting, supporting seat, the mount pad, the bolt hole has been seted up on the mount pad, T type bolt revolves soon to twist and installs on the mount pad, the screw rod tip fixed welding of grip block and bolt hole, and horizontal girder steel centre gripping location is between vertical girder steel and grip block.
Preferably, the secondary positioning frame and the secondary connecting lug plate are integrally formed.
Preferably, spread groove, second grade insertion groove and spacing groove have been seted up on the lateral wall of one-level connecting hole, second grade insertion groove and spacing groove equal symmetry are provided with a set ofly, and are the cross between second grade insertion groove, the spacing groove and arrange, and second grade insertion groove, spacing groove all are linked together with the spread groove, the one-level insertion groove has been seted up on the lateral wall of second grade connecting hole, one-level insertion groove symmetry is provided with a set ofly.
Preferably, the notch sections of the primary insertion groove, the secondary insertion groove and the limiting groove are matched, the primary insertion groove and the secondary insertion groove are arranged correspondingly, and the positions of the upper side edge line and the lower side edge line of the primary insertion groove, the positions of the upper side edge line and the lower side edge line of the secondary insertion groove and the position of the lower side edge line of the limiting groove are subjected to chamfering treatment.
Preferably, a support member is arranged in the connecting groove, the support member is formed by combining a support spring, a lower annular plate and an upper annular plate, and two ends of the support spring are respectively connected with the lower annular plate and the upper annular plate.
Preferably, the connecting piece comprises connecting rod, turning handle and spacing protruding combination, turning handle, spacing protruding all with connecting rod fixed weld, and spacing bellied size is identical with the size of spacing groove, and the diameter value of connecting rod is identical with the diameter value of one-level connecting hole, second grade connecting hole, and when spacing protruding embedding was to among the spacing groove, its supporting spring was in the reset state.
Preferably, the primary connecting lug plate is formed by combining a primary lug plate body and a secondary lug plate body, and the primary lug plate body and the secondary lug plate body are connected in a welding manner.
Compared with the prior art, the invention has the beneficial effects that:
1. the welding auxiliary structure of the prefabricated steel structure is formed by combining a first pre-positioning assembly, a second pre-positioning assembly, a connecting piece and a positioning rod, so that the positioning rod is arranged in a through hole in the vertical steel beam, the first pre-positioning assembly is formed by combining a first-stage positioning frame, a first-stage connecting lug plate, a supporting seat, a mounting seat, a T-shaped bolt and a clamping plate, the second pre-positioning assembly is formed by combining a second-stage positioning frame and a second-stage connecting lug plate, a first-stage positioning groove is formed in the inner side wall of the first-stage positioning frame, a second-stage positioning groove is formed in the inner side wall of the second-stage positioning frame, the positioning rod is embedded into the first-stage positioning groove and the second-stage positioning groove, and the aim of auxiliary positioning of the transverse steel beam is fulfilled through the positioning rod;
2. the side wall of the first-stage connecting hole of the first-stage connecting lug plate is provided with a connecting groove, a second-stage inserting groove and a limiting groove, the side wall of the second-stage connecting hole is provided with the first-stage inserting groove, and the connecting piece is formed by combining a connecting rod, a rotating handle and a limiting bulge, so that the limiting bulge is embedded into the limiting groove, and the first-stage lug plate body and the second-stage lug plate body are quickly butted;
3. and chamfers are arranged at the upper side edge line position and the lower side edge line position of the primary insertion groove, the upper side edge line position and the lower side edge line position of the secondary insertion groove and the lower side edge line position of the limiting groove, so that the limiting protrusion can be conveniently inserted and withdrawn.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a first pre-positioning assembly according to the present invention;
FIG. 3 is a schematic view of a first-level positioning frame;
FIG. 4 is an enlarged view of the structure at A in FIG. 3;
FIG. 5 is an enlarged view of the structure at B in FIG. 3;
FIG. 6 is a schematic diagram of a second pre-positioning assembly;
FIG. 7 is a schematic view of the installation position of the positioning rod;
fig. 8 is a schematic view of the connector structure.
In the figure: first prepositioning subassembly 1, second prepositioning subassembly 2, connecting piece 3, vertical girder steel 4, locating lever 5, horizontal girder steel 6, one-level locating frame 7, one-level engaging lug board 8, supporting seat 9, mount pad 10, T type bolt 11, grip block 12, one-level connecting hole 13, second grade locating frame 14, second grade engaging lug board 15, second grade connecting hole 16, one-level constant head tank 17, second grade constant head tank 18, bolt hole 19, one-level lug body 20, second grade lug body 21, spread groove 22, second grade insertion groove 23, spacing groove 24, support piece 25, supporting spring 26, lower annular plate 27, last annular plate 28, one-level insertion groove 29, connecting rod 30, turning handle 31, spacing arch 32.
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.
Referring to fig. 1-8, the present invention provides a technical solution: a welding auxiliary structure for an assembly type prefabricated steel structure comprises a first pre-positioning assembly 1, a second pre-positioning assembly 2, a connecting piece 3, a vertical steel beam 4, a positioning rod 5 and a transverse steel beam 6, wherein the first pre-positioning assembly 1 is formed by combining a first-stage positioning frame 7, a first-stage connecting lug plate 8, a supporting seat 9, a mounting seat 10, a T-shaped bolt 11 and a clamping plate 12, a first-stage connecting hole 13 is formed in the first-stage connecting lug plate 8, a first-stage positioning groove 17 is formed in the inner side wall of the first-stage positioning frame 7, the second pre-positioning assembly 2 is formed by combining a second-stage positioning frame 14 and a second-stage connecting lug plate 15, a second-stage connecting hole 16 is formed in the second-stage connecting lug plate 15, a second-stage positioning groove 18 is formed in the inner side wall of the second-stage positioning frame 14, and the first-stage connecting hole 13 is arranged corresponding to the second-stage positioning frame 14, the second-stage positioning grooves 18 are arranged corresponding to the first-stage positioning grooves 17, the first-stage connecting lug plates 8 on the first pre-positioning assembly 1 and the second-stage connecting lug plates 15 on the second pre-positioning assembly 2 are positioned and fixed through the connecting pieces 3, the vertical steel beams 4 are fixed on a base on a foundation, through holes are formed in the vertical steel beams 4, the positioning rods 5 are inserted into the through holes in the vertical steel beams 4, the first pre-positioning assembly 1 and the second pre-positioning assembly 2 are pre-positioned through the positioning rods 5, the transverse steel beams 6 are positioned through the first pre-positioning assembly 1, the second-stage positioning grooves 18 and the first-stage positioning grooves 17 are semicircular notches, the diameter values of the notches are identical to the diameter value of the positioning rods 5, a group of second-stage positioning grooves 18 and a group of first-stage positioning grooves 17 are symmetrically arranged, and the distance value between the bottoms of the second-stage positioning grooves 18 at two sides is identical to the diameter value of the positioning rods 5, and the both ends of locating lever 5 all imbed in the second grade constant head tank 18 and the one-level constant head tank 17 enclose close among the circular slot mouth that forms, through setting up the welding auxiliary structure of the prefabricated steel construction of assembled that constitutes by first prepositioning subassembly 1, second prepositioning subassembly 2, connecting piece 3 and locating lever 5 combination, thereby through setting up locating lever 5 among the through-hole on vertical girder steel 4, and set up first prepositioning subassembly 1 to constitute by one-level locating frame 7, one-level engaging lug board 8, supporting seat 9, mount pad 10, T type bolt 11 and grip block 12 combination, and set up second prepositioning subassembly 2 to constitute by second level locating frame 14 and the combination of second level engaging lug board 15, and set up one-level constant head tank 17 on the inside wall of one-level locating frame 7, and set up second grade constant head tank 18 on the inside wall of second level locating frame 14, thereby imbed among one-level constant head tank 17 and second grade constant head tank 18 through locating lever 5, thereby play the purpose of assistance-localization to horizontal girder steel 6 through it.
The inner contour dimension of the frame body formed by enclosing the first-stage positioning frame 7 and the second-stage positioning frame 14 is matched with the outer contour dimension of the section of the vertical steel beam 4, and the vertical steel beam 4 is clamped by the first-stage positioning frame 7 and the second-stage positioning frame 14.
The first-stage positioning frame 7, the first-stage connecting lug plate 8, the supporting seat 9 and the mounting seat 10 are integrally formed, the mounting seat 10 is provided with a bolt hole 19, the T-shaped bolt 11 is screwed and mounted on the mounting seat 10, the clamping plate 12 is fixedly welded with the end part of a screw rod of the bolt hole 19, and the transverse steel beam 6 is clamped and positioned between the vertical steel beam 4 and the clamping plate 12.
The secondary positioning frame 14 and the secondary connecting ear plate 15 are integrally formed.
The side wall of the first-level connecting hole 13 is provided with a connecting groove 22, a second-level inserting groove 23 and a limiting groove 24, the second-level inserting groove 23 and the limiting groove 24 are symmetrically provided with a group, the second-level inserting groove 23 and the limiting groove 24 are arranged in a cross shape, the second-level inserting groove 23 and the limiting groove 24 are communicated with the connecting groove 22, the side wall of the second-level connecting hole 16 is provided with a first-level inserting groove 29, the second-level inserting groove 23 and the limiting groove 24 are symmetrically provided with a group, the notch sections of the first-level inserting groove 29, the second-level inserting groove 23 and the limiting groove 24 are matched, the first-level inserting groove 29 and the second-level inserting groove 23 are correspondingly arranged, the connecting groove 22, the second-level inserting groove 23 and the limiting groove 24 are arranged on the side wall of the first-level connecting lug plate 8, the first-level inserting groove 29 is arranged on the side wall of the second-level connecting hole 16, the connecting piece 3 is formed by combining a connecting rod 30, a rotating handle 31 and a limiting bulge 32, so that the limiting bulge 32 is embedded into the limiting groove 24, and the first-level lug plate body 20 and the second-level lug body 21 are quickly butted;
the upper and lower side edge line positions of the primary insertion groove 29, the upper and lower side edge line positions of the secondary insertion groove 23, and the lower side edge line position of the stopper groove 24 are chamfered, and the chamfers are provided at the upper and lower side edge line positions of the primary insertion groove 29, the upper and lower side edge line positions of the secondary insertion groove 23, and the lower side edge line position of the stopper groove 24, so that the stopper projection 32 can be inserted and withdrawn conveniently.
The connecting groove 22 is provided therein with a support 25, the support 25 is composed of a support spring 26, a lower annular plate 27 and an upper annular plate 28, and both ends of the support spring 26 are connected with the lower annular plate 27 and the upper annular plate 28, respectively.
The connecting piece 3 is composed of a connecting rod 30, a rotating handle 31 and a limiting bulge 32, the rotating handle 31 and the limiting bulge 32 are fixedly welded with the connecting rod 30, the size of the limiting bulge 32 is matched with that of the limiting groove 24, the diameter value of the connecting rod 30 is matched with that of the first-level connecting hole 13 and the second-level connecting hole 16, and when the limiting bulge 32 is embedded into the limiting groove 24, the supporting spring 26 is in a reset state.
The primary connecting lug plate 8 is formed by combining a primary lug plate body 20 and a secondary lug plate body 21, and the primary lug plate body 20 is connected with the secondary lug plate body 21 in a welding manner;
the working principle is as follows: through setting up by first prepositioning subassembly 1, second prepositioning subassembly 2, the prefabricated steel construction's of assembled welding auxiliary structure that connecting piece 3 and locating lever 5 combination constitute, thereby through setting up locating lever 5 among the through-hole on vertical girder steel 4, and set up first prepositioning subassembly 1 to constitute by one-level locating frame 7, one-level engaging lug board 8, supporting seat 9, mount pad 10, T type bolt 11 and grip block 12 combination constitute, and set up second prepositioning subassembly 2 to constitute by second positioning frame 14 and the combination of second engaging lug board 15, and set up one-level constant head tank 17 on the inside wall of one-level locating frame 7, and set up second constant head tank 18 on the inside wall of second positioning frame 14, thereby imbed to one-level constant head tank 17 and second constant head tank 18 through locating lever 5, thereby play the purpose of assistance-localization through it to horizontal girder steel 6, during the practical use, staff pegs graft in the through-hole on vertical girder steel 4 locating lever 5 earlier, then through connecting piece 3 with first prepositioning subassembly 1, second prepositioning subassembly 2 is positioned on vertical girder steel 4, and guarantee then the locating lever 5 imbeds to set up through horizontal contact between the horizontal girder steel 6 again and carry out the clamp connection of T type steel beam 6 again, then can carry out the clamp to the T type constant head tank 11 with the girder steel 12, then.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a welding auxiliary structure for assembled prefabricated steel construction which characterized in that: the welding auxiliary structure of assembled prefabricated steel structure includes:
the device comprises a first pre-positioning assembly (1), wherein the first pre-positioning assembly (1) is formed by combining a first-stage positioning frame (7), a first-stage connecting lug plate (8), a supporting seat (9), a mounting seat (10), a T-shaped bolt (11) and a clamping plate (12), a first-stage connecting hole (13) is formed in the first-stage connecting lug plate (8), and a first-stage positioning groove (17) is formed in the inner side wall of the first-stage positioning frame (7);
the second pre-positioning assembly (2) is formed by combining a secondary positioning frame (14) and a secondary connecting lug plate (15), a secondary connecting hole (16) is formed in the secondary connecting lug plate (15), a secondary positioning groove (18) is formed in the inner side wall of the secondary positioning frame (14), the primary connecting hole (13) is arranged corresponding to the secondary positioning frame (14), and the secondary positioning groove (18) is arranged corresponding to the primary positioning groove (17);
the connecting piece (3) is used for positioning and fixing the primary connecting ear plate (8) on the first pre-positioning assembly (1) and the secondary connecting ear plate (15) on the second pre-positioning assembly (2) through the connecting piece (3);
the vertical steel beam (4) is fixed on a base on the foundation, and a through hole is formed in the vertical steel beam (4);
the positioning rods (5) are inserted into the through holes in the vertical steel beams (4), and the first pre-positioning assembly (1) and the second pre-positioning assembly (2) are pre-positioned through the positioning rods (5);
the transverse steel beam (6) is positioned through the first pre-positioning assembly (1).
2. The welding assistance structure for the fabricated precast steel structure of claim 1, wherein: second grade constant head tank (18) are semi-circular notch with one-level constant head tank (17), and its notch diameter value between them all is identical with the diameter value of locating lever (5), and second grade constant head tank (18) and one-level constant head tank (17) equal symmetry are provided with a set ofly, and between the tank bottom of both sides second grade constant head tank (18) apart from the value identical with the diameter value of locating lever (5), and the both ends of locating lever (5) all imbed in second grade constant head tank (18) and one-level constant head tank (17) enclose close among the round slot mouth that forms.
3. The welding assistance structure for the prefabricated steel structure according to claim 1, wherein: the inner contour dimension of the frame body formed by enclosing the first-stage positioning frame (7) and the second-stage positioning frame (14) is matched with the outer contour dimension of the section of the vertical steel beam (4), and the vertical steel beam (4) is clamped by the first-stage positioning frame (7) and the second-stage positioning frame (14).
4. The welding assistance structure for the prefabricated steel structure according to claim 3, wherein: be integrated into one piece between one-level posting (7), one-level engaging lug board (8), supporting seat (9), mount pad (10), bolt hole (19) have been seted up on mount pad (10), T type bolt (11) are twisted soon and are installed on mount pad (10), grip block (12) and the fixed welding of screw rod tip of bolt hole (19), and horizontal girder steel (6) centre gripping location between vertical girder steel (4) and grip block (12).
5. The welding assistance structure for the prefabricated steel structure according to claim 3, wherein: the secondary positioning frame (14) and the secondary connecting lug plate (15) are integrally formed.
6. The welding assistance structure for the fabricated precast steel structure of claim 1, wherein: connection groove (22), secondary insertion groove (23) and spacing groove (24) have been seted up on the lateral wall of one-level connecting hole (13), secondary insertion groove (23) and spacing groove (24) equal symmetry are provided with a set ofly, and are the cross between secondary insertion groove (23), spacing groove (24) and arrange, and secondary insertion groove (23), spacing groove (24) all are linked together with connection groove (22), one-level insertion groove (29) have been seted up on the lateral wall of secondary connecting hole (16), one-level insertion groove (29) symmetry is provided with a set ofly.
7. The welding assistance structure for the prefabricated steel structure according to claim 6, wherein: the notch sections of the primary insertion groove (29), the secondary insertion groove (23) and the limiting groove (24) are matched, the primary insertion groove (29) and the secondary insertion groove (23) are arranged correspondingly, and the upper side edge line position and the lower side edge line position of the primary insertion groove (29), the upper side edge line position and the lower side edge line position of the secondary insertion groove (23) and the lower side edge line position of the limiting groove (24) are subjected to chamfering treatment.
8. The welding assistance structure for the prefabricated steel structure according to claim 7, wherein: the connecting groove (22) is internally provided with a supporting piece (25), the supporting piece (25) is formed by combining a supporting spring (26), a lower annular plate (27) and an upper annular plate (28), and two ends of the supporting spring (26) are respectively connected with the lower annular plate (27) and the upper annular plate (28).
9. The welding assistance structure for the prefabricated steel structure according to claim 8, wherein: connecting piece (3) comprise connecting rod (30), stem (31) and spacing arch (32) combination, stem (31), spacing arch (32) all with connecting rod (30) fixed weld, and the size of spacing arch (32) is identical with the size of spacing groove (24), and the diameter value of connecting rod (30) is identical with the diameter value of one-level connecting hole (13), second grade connecting hole (16), and when spacing arch (32) was embedded into among spacing groove (24), its supporting spring (26) was in the reset state.
10. The welding assistance structure for the prefabricated steel structure according to claim 9, wherein: the primary connecting lug plate (8) is formed by combining a primary lug plate body (20) and a secondary lug plate body (21), and the primary lug plate body (20) is connected with the secondary lug plate body (21) in a welding manner.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116971548A (en) * | 2023-08-14 | 2023-10-31 | 广东省水利水电第三工程局有限公司 | Installation and adjustment device and adjustment method for greenhouse framework |
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