WO2020000899A1 - 一种建筑用模板连接夹扣 - Google Patents

一种建筑用模板连接夹扣 Download PDF

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Publication number
WO2020000899A1
WO2020000899A1 PCT/CN2018/118852 CN2018118852W WO2020000899A1 WO 2020000899 A1 WO2020000899 A1 WO 2020000899A1 CN 2018118852 W CN2018118852 W CN 2018118852W WO 2020000899 A1 WO2020000899 A1 WO 2020000899A1
Authority
WO
WIPO (PCT)
Prior art keywords
block
clip
clamping block
fixing member
clamping
Prior art date
Application number
PCT/CN2018/118852
Other languages
English (en)
French (fr)
Chinese (zh)
Inventor
刘成文
Original Assignee
广州市艺达机械有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 广州市艺达机械有限公司 filed Critical 广州市艺达机械有限公司
Priority to EP18924562.4A priority Critical patent/EP3722538A4/en
Priority to KR1020207013901A priority patent/KR102429149B1/ko
Priority to CA3082920A priority patent/CA3082920C/en
Publication of WO2020000899A1 publication Critical patent/WO2020000899A1/zh

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Classifications

    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
    • E04G17/045—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements being tensioned by wedge-shaped elements
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/023—Forming boards or similar elements with edge protection
    • E04G2009/025—Forming boards or similar elements with edge protection by a flange of the board's frame

Definitions

  • the invention relates to a building template connection clip, which belongs to the technical field of building construction.
  • the invention proposes a construction template connection clip, which can overcome the shortcomings in the prior art.
  • a construction template connection clip includes a first clip block, a second clip block, and a fixing member, and the first clip block and the second clip block are used to use two building formwork templates.
  • a positioning hole is provided on the first clamping block, and a positioning shaft is provided on the second clamping block. The positioning shaft is inserted into the positioning hole, and the positioning shaft is used for the positioning hole.
  • the fixing member is used for fixing the first clamping block and the second clamping block.
  • first clamping block, the second clamping block, and the fixing member clamp the two building templates
  • first clamping block and the second clamping block form a concave inner side surface, and at least one of the three inner sides of the concave inner side surface. Make surface contact with building formwork.
  • a reinforcing plate 1 is provided near the positioning hole of the first clamping block
  • a reinforcing plate 2 is provided near the positioning shaft of the second clamping block.
  • the first clamping block is a clamping block one
  • the second clamping block is a clamping block two
  • the clamping block one and the clamping block two are hinged through a rotating shaft
  • two clamping plates are provided on the clamping block one.
  • a splicing slot 1 is formed between two plywood plates 1, and a plywood plate 2 is provided on the second clamping plate, the second plywood plate is connected with the plugging groove 1, and two fixing member jacks are provided on the first clamping plate.
  • the fixing piece cooperates with the two fixing piece jacks.
  • first clamping block is a clamping block three
  • second clamping block is a clamping block four.
  • a clamping plate 4 is provided on the clamping block 4, and a limiting chute 1 is also provided on the clamping block 3.
  • the clamping plate 4 is provided with a limiting shaft 1.
  • the clamping plate 4 is connected with the insertion slot 2.
  • the limiting axis 1 is along the limit.
  • the position chute slides back and forth; the two splints 3 and 4 are provided with fixing member jacks.
  • first clamp block is clamp block five
  • second clamp block is clamp block six.
  • Two clamp plates five are provided on clamp block five, and one clamp plate six and two clamp plates are provided on clamp block six.
  • a slot three is formed between the two, and the splint six is connected with the three slot 3.
  • the two splints five are respectively provided with a fixing hole, the splint six is provided with a sliding groove, and the fixing piece is provided with a convex strip, a convex strip and a sliding piece.
  • the two splints five are respectively provided with a limiting chute two, and the splint six is provided with a limiting shaft two, and the limiting shaft two slides back and forth along the limiting chute two.
  • the first clamping block is a clamping block seven
  • the second clamping block is a clamping block eight.
  • the clamping block seven is provided with a connecting slot four, and the clamping block eight is inserted into the connecting slot four.
  • the fixing piece is a tie rod
  • a spring is arranged on the tie sleeve
  • a detachable blocking pin is provided on the tie rod
  • a baffle is provided on the clamping piece seven.
  • the baffle is provided with a pull rod jack, a spring is located between the baffle and the blocking pin and is in a compressed state, and the pull rod cooperates with the clamping block.
  • first clamp block is a clamp block nine
  • second clamp block is a clamp block ten
  • the clamp block nine is provided with a plug slot five
  • the clip block ten is inserted into the plug slot five.
  • the clamping block 10 is provided with a limiting shaft five
  • the clamping block 9 is provided with a limiting chute five
  • the limiting shaft 5 slides back and forth along the limiting chute 5, and one end of the fixing member and the clamping block
  • a clamping slot is provided on the clamping block ten, and the other end of the fixing member is engaged with the clamping slot of the clamping block ten.
  • a blocking shaft is provided at one end of the fixing member, and the size of the blocking shaft is smaller than the diameter of one of the fixing member insertion holes and larger than the diameter of the other fixing member insertion hole.
  • the number of the convex strips is two
  • the number of the sliding grooves is two
  • the two convex strips slide along the two sliding grooves.
  • the fixing member includes four frames, namely frame one, frame two, frame three, and frame four.
  • the four frames are enclosed and connected to form a rectangular structure, the frame one is rotatably connected to the clip block nine, and the frame two is connected to the card slot card. Then, the third frame and the fourth frame are in contact with the nine sides of the clamping block.
  • the construction template connection clip of the present invention can overcome the shortcomings in the prior art, has a simple structure, convenient use, high safety, fast locking and disassembly speed, reliable fastening, and is not easy to lose. Low cost and long service life.
  • the connection between the formwork clips of the formwork used for construction and the formwork surface is more effective to increase the buckling range, and the clamping position is closest to the concrete.
  • the formwork is almost flat to ensure the smooth and flat concrete surface.
  • the clip has high strength, large clamping force, strong stability, and can be recycled for effective cost savings.
  • the paired design of the clip and the template drives the template to fasten and clamp itself, making the template more pressure-bearing.
  • the formwork is not easy to deform under pressure, and the concrete is not easy to accumulate, which is clear and simple.
  • the template is not easy to shift and detach, can quickly and accurately align, and is fixed in one step, durable, and not easy to lose.
  • FIG. 1 is a schematic perspective view of a first embodiment of a construction template connection clip according to the present invention
  • FIG. 2 is an exploded view of the formwork connection clip of the building shown in FIG. 1;
  • FIG. 3 is a perspective view of a three-dimensional structure of the building template connection clip shown in FIG. 1 connected to the building template;
  • FIG. 4 is a schematic perspective view of a second embodiment of a construction template connection clip
  • FIG. 5 is an exploded view of the formwork connection clip of the building shown in FIG. 4;
  • FIG. 6 is a perspective view of the three-dimensional structure of the building template connection clip shown in FIG. 4 connected to the building template;
  • FIG. 7 is a schematic perspective view of a third embodiment of a construction template connection clip
  • FIG. 8 is an exploded view of the construction template connection clip shown in FIG. 7; FIG.
  • FIG. 9 is a schematic diagram of a three-dimensional structure of the building template connection clip shown in FIG. 7 connected to the building template; FIG.
  • FIG. 10 is a schematic perspective view of a fourth embodiment of a construction template connection clip
  • FIG. 11 is a schematic cross-sectional structure diagram of the formwork connection clip of the building shown in FIG. 10;
  • FIG. 12 is an exploded view of the formwork connection clip of the building shown in FIG. 10; FIG.
  • FIG. 13 is a schematic perspective view of the three-dimensional structure of the building template connection clip shown in FIG. 10 connected to the building template;
  • FIG. 14 is a schematic perspective view of a fifth embodiment of a formwork connection clip for a building
  • FIG. 15 is an exploded view of the building template connection clip shown in FIG. 14;
  • FIG. 16 is a schematic perspective view of a three-dimensional structure of the building template connection clip shown in FIG. 14 connected to the building template.
  • a construction template connection clip includes a first clip block 11, a second clip block 12, and a fixing member 14, and the first clip block 11 and the second clip block 12 are used to clamp and connect two construction template sheets.
  • the first clamping block 11 is provided with a positioning hole
  • the second clamping block 12 is provided with a positioning shaft.
  • the positioning shaft is inserted into the positioning hole, and the positioning shaft and the positioning hole are used for connecting two pieces.
  • the fixing member 14 is used to fix the first clamping block 11 and the second clamping block 12 through the through holes of the building template.
  • the first clamping block 11 and the second clamping block 12 form a concave inner surface, and at least one of the three inner surfaces A, B, and C of the concave inner surface is in contact with the construction template surface.
  • the three inner side surfaces A, B, and C of the concave inner side surface are in contact with the formwork surface of the building.
  • a reinforcing plate 1 is provided near the positioning hole 18 of the first clamping block 11, and a reinforcing plate 2 is provided near the positioning shaft 19 of the second clamping block 12.
  • the first clamping block 11, the second clamping block 12, and the fixing member 14 When two building formwork plates are clamped, the first reinforcing plate is in contact with one of the building formwork surfaces, and the second reinforcing plate is in contact with the other building formwork surface.
  • the first clamp block is clamp block 11 and the second clamp block is clamp block two 12.
  • the clamp block 11 and the clamp block 123 are hinged by a rotating shaft 13.
  • the clamp block 11 is provided on the clamp block 11.
  • the splint two is provided with a splint two, and the splint two is connected with the splicing slot one.
  • the clamp block 11 is provided with two fixing member insertion holes 115 and 116, and the fixing member 14 cooperates with the two fixing member insertion holes 115 and 116.
  • One end of the fixing member 14 is provided with a stopper shaft 17.
  • the size of the blocking shaft 17 is smaller than the diameter of one of the fixing member insertion holes 116 and larger than the diameter of the other fixing member insertion hole 115.
  • a construction formwork connection clip includes a first clip block 21, a second clip block 22, and a fixing member 23.
  • the first clip block 21 and the second clip block 22 are used to clamply connect two construction formwork boards.
  • the first clamping block 21 is provided with a positioning hole 212
  • the second clamping block 22 is provided with a positioning shaft 213, the positioning shaft 213 is inserted into the positioning hole 212, and the positioning shaft 213 is connected to the positioning
  • the hole 212 is used to cooperate with the through holes of two building templates
  • the fixing member 23 is used to fix the first clamp block 21 and the second clamp block 22; when the first clamp block 21 and the second clamp block
  • the first clamping block 21 and the second clamping block 22 form a concave inner side surface, and at least one of the three inner side surfaces of the concave inner side surface is in contact with the construction template surface.
  • the three inner sides of the concave inner side are in contact with the building template surface.
  • a reinforcing plate 24 is provided at the positioning hole 212 near the first clamping block 21, and a reinforcing plate 25 is provided at the positioning shaft 213 near the second clamping block 22.
  • the reinforcing plate one 24 is in contact with one of the building formwork surfaces, and the reinforcing plate two 25 is in contact with the other building formwork surface.
  • the first clamping block is a clamping block three 21, and the second clamping block is a clamping block four 22.
  • the clamping block three 21 is provided with two clamping plates three, and the two clamping plate three are provided with a slot 2 between them.
  • a clamping plate 4 is provided on the clamping block 4, and a limiting chute 1 is also provided on the clamping block 3.
  • the clamping plate 4 is provided with a limiting shaft 1 28, the clamping plate 4 is connected with the socket 2 and the limiting shaft 1 28 Sliding back and forth along the limit chute 1-29; the two clamping plates 3 and 4 are provided with fixing piece insertion holes 26 and 27 respectively.
  • the limit axis one 28 When in use, the limit axis one 28 is in the limit chute one 29 so that the positioning axis two 213 and the positioning hole two 212 are connected to the through holes of the two building templates, and then the limit axis one 28 is slid so that the positioning axis two 213 is inserted into the positioning Hole two 212, at this time, insert the fixing member 23 into the two fixing member jacks 3 and the fixing member jacks 4 to fix and lock.
  • a construction template connection clip includes a first clip block 31, a second clip block 32, and a fixing member 33.
  • the first clip block 31 and the second clip block 32 are used to clamp and connect two construction template sheets.
  • the first clamping block 31 is provided with a positioning hole 313, the second clamping block 32 is provided with a positioning shaft 314, the positioning shaft 314 is inserted into the positioning hole 313, and the positioning shaft 314 is connected to the positioning
  • the hole 313 is used to cooperate with the through holes of two building templates
  • the fixing member 33 is used to fix the first clamp block 31 and the second clamp block 32; when the first clamp block 31 and the second clamp block
  • the first clamping block 31 and the second clamping block 32 form a concave inner side, and at least one of the three inner sides of the concave inner side is in contact with the building formwork surface.
  • the three inner sides of the concave inner side are in contact with the building template surface.
  • a reinforcing plate 1 is provided at the positioning hole 313 near the first clamping block 31, and a reinforcing plate 2 is provided at the positioning shaft near the second clamping block 32.
  • the first clamping block 31, the second clamping block 32, and the fixing member 33 will When two building formwork plates are clamped, the first reinforcing plate is in contact with one of the building formwork surfaces, and the second reinforcing plate is in contact with the other building formwork surface.
  • the first clamp block is clamp block five 31, and the second clamp block is clamp block six 32.
  • the clamp block five 31 is provided with two clamp plates five 31, and the clamp block six is provided with one clamp plate 32, two.
  • a splicing slot three is formed between the splint five 31, and the splint six 32 is connected to the splicing slot three.
  • the two splint five 31 are respectively provided with a fixing hole 36, and the splint six 32 is provided with a sliding groove 322 and a fixing piece 33.
  • a convex strip 311 is arranged on the convex strip 311, and the convex strip 311 is inserted into the chute 322.
  • the two splints five 31 are respectively provided with a limit chute two 37.
  • the splint six 32 is provided with a limit shaft two 34 and a limit shaft two 34 slides back and forth along the limit chute II 37.
  • the number of the protrusions 311 is two, and the number of the sliding grooves 322 is two.
  • the two protrusions 311 slide along the two sliding grooves 322.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • a construction template connection clip includes a first clip block 41, a second clip block 42, and a fixing member 43, and the first clip block 41 and the second clip block 42 are used to clamply connect two construction template sheets.
  • the first clamping block 42 is provided with a positioning hole 412
  • the second clamping block 42 is provided with a positioning shaft 421, the positioning shaft 421 is inserted into the positioning hole 412, and the positioning shaft 421 is connected to the positioning
  • the hole 412 is used to cooperate with the through holes of two building templates
  • the fixing member 43 is used to fix the first clamping block 41 and the second clamping block 42; when the first clamping block 41 and the second clamping block 41
  • the first clamping block 41 and the second clamping block 42 form a concave inner side surface, and at least one of the three inner side surfaces of the concave inner side surface is in contact with the building template surface.
  • the three inner sides of the concave inner side are in contact with the building template surface.
  • a reinforcing plate 1 is provided near the positioning hole 412 of the first clamping block, and a reinforcing plate 2 is provided near the positioning shaft 421 of the second clamping block.
  • the first clamping block is a clamping block seven 41
  • the second clamping block is a clamping block eight 42.
  • the clamping block seven 41 is provided with an insertion slot four
  • the clamping block eight 42 is connected to the insertion slot four.
  • the clamp block 7 41 is provided with a fixing member insertion hole
  • the clamp block 8 42 is provided with a clamping block 411
  • the fixing member is a tie rod 432
  • the tie rod 432 is provided with a spring 44
  • the tie rod 432 is provided with a detachable blocking pin 45
  • the clamp block 411 is also provided with a baffle plate 491, a baffle jack is provided on the baffle plate 491, a spring 44 is located between the baffle plate 491 and the blocking pin 45 and is in a compressed state, and a pull rod 432 is matched with the clamping block 411.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • a construction template connection clip includes a first clip block 51, a second clip block 52, and a fixing member 53, and the first clip block 51 and the second clip block 52 are used to clamp and connect two construction template sheets.
  • the first clamping block 51 is provided with a positioning hole 511
  • the second clamping block 52 is provided with a positioning shaft 521
  • the positioning shaft 521 is inserted into the positioning hole 511
  • the positioning shaft 521 is connected to the positioning
  • the hole 511 is used to cooperate with the through holes of two building templates
  • the fixing member 53 is used to fix the first clamp block 51 and the second clamp block 52; when the first clamp block 51 and the second clamp block
  • the first clamping block 51 and the second clamping block 52 form a concave inner side, and at least one of the three inner sides of the concave inner side is in contact with the surface of the building formwork.
  • the three inner sides of the concave inner side are in contact with the building template surface.
  • a reinforcing plate 1 is provided at the positioning hole 511 near the first clamping block 51, and a reinforcing plate 2 is provided at the positioning shaft 521 near the second clamping block 52.
  • the first clamping block 51, the second clamping block 52, and the fixing member 53 are provided, When two building formwork plates are clamped, the first reinforcing plate is in contact with one of the building formwork surfaces, and the second reinforcing plate is in contact with the other building formwork surface.
  • the first clamping block is a clamping block nine 51
  • the second clamping block is a clamping block ten 52.
  • the clamping block nine 51 is provided with a insertion slot five, and the clamping block ten is inserted into the insertion slot five.
  • a limiting shaft five 55 is provided on the clamping block ten 52
  • a limiting chute five 56 is provided on the clamping block nine 51, and the limiting shaft five 55 slides back and forth along the limiting chute five 56.
  • One end of the fixing member 53 is rotatably connected with the clamping block nine 51.
  • the clamping block ten 52 is provided with a clamping slot 54. The other end of the fixing member 53 is engaged with the clamping slot 54 of the clamping block ten 52.
  • the fixing member 53 includes four frames, which are frame one, frame two, frame three, and frame four.
  • the four frames are enclosed and connected to form a rectangular structure.
  • the frame one is rotatably connected to the clamp block 51, and the frame two is connected to the card slot 54.
  • the snap connection, the frame three and the frame four all contact the nine sides of the clamping block.
  • connection between the formwork clips of the formwork used for construction and the formwork surface is more effective to increase the buckling range, and the clamping position is closest to the concrete.
  • the formwork is almost flat to ensure the smooth and flat concrete surface.
  • the clip has high strength, large clamping force, strong stability, and can be recycled for effective cost savings.
  • the paired design of the clip and the template drives the template to fasten and clamp itself, making the template more pressure-bearing. Easy assembly and disassembly, fast assembly and disassembly time.
  • the formwork is not easy to deform under pressure, and the concrete is not easy to accumulate, which is clear and simple.
  • connection template can still maintain the working support requirements under pressure, and the performance is not much different.
  • the template is not easy to shift and detach, can quickly and accurately align, and is fixed in one step, durable, and not easy to lose.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Clamps And Clips (AREA)
PCT/CN2018/118852 2018-06-27 2018-12-03 一种建筑用模板连接夹扣 WO2020000899A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18924562.4A EP3722538A4 (en) 2018-06-27 2018-12-03 CONSTRUCTION FORMWORK CONNECTION FLANGE
KR1020207013901A KR102429149B1 (ko) 2018-06-27 2018-12-03 건축용 보드 연결 클램프 클립
CA3082920A CA3082920C (en) 2018-06-27 2018-12-03 A connection clamp of buidling formwork

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810680099.2 2018-06-27
CN201810680099.2A CN108824807B (zh) 2018-06-27 2018-06-27 一种建筑用模板连接夹扣

Publications (1)

Publication Number Publication Date
WO2020000899A1 true WO2020000899A1 (zh) 2020-01-02

Family

ID=64139303

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Application Number Title Priority Date Filing Date
PCT/CN2018/118852 WO2020000899A1 (zh) 2018-06-27 2018-12-03 一种建筑用模板连接夹扣

Country Status (5)

Country Link
EP (1) EP3722538A4 (ko)
KR (1) KR102429149B1 (ko)
CN (1) CN108824807B (ko)
CA (1) CA3082920C (ko)
WO (1) WO2020000899A1 (ko)

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CN112854735A (zh) * 2021-01-08 2021-05-28 盛尔建设集团有限公司 一种加强型绿色环保的建筑模板

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CN108824807B (zh) * 2018-06-27 2019-09-17 广州市艺达机械有限公司 一种建筑用模板连接夹扣
CN109518964B (zh) * 2018-12-06 2020-09-15 深圳市前海格锐建筑技术有限公司 安装拆卸工具
CN113605689B (zh) * 2021-08-03 2022-09-23 合肥建设装饰(集团)有限责任公司 一种建筑工程用拼接式建筑模板
CN113931437B (zh) * 2021-10-21 2022-10-25 湖南鑫政铝业科技有限公司 一种抗冲击建筑铝模板

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