CN109441105B - Reinforced structure and composite material template reinforcing system - Google Patents
Reinforced structure and composite material template reinforcing system Download PDFInfo
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- CN109441105B CN109441105B CN201811492812.7A CN201811492812A CN109441105B CN 109441105 B CN109441105 B CN 109441105B CN 201811492812 A CN201811492812 A CN 201811492812A CN 109441105 B CN109441105 B CN 109441105B
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- 239000002131 composite material Substances 0.000 title claims abstract description 131
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 110
- 230000002787 reinforcement Effects 0.000 claims description 33
- 238000009434 installation Methods 0.000 claims description 21
- 239000002002 slurry Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 8
- 238000009415 formwork Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
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- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention provides a reinforcing structure which comprises two fixing plates which are vertically arranged, a connecting plate which is vertically arranged, a cover plate which is horizontally arranged and a first locking piece, wherein the two fixing plates are oppositely arranged, the left end and the right end of the connecting plate are respectively connected with the rear ends of the two fixing plates, the front ends of the two fixing plates are respectively provided with a positioning plate, the left end and the right end of the cover plate are respectively connected with the upper ends of the two positioning plates, a containing cavity is formed among the fixing plates, the connecting plate, the cover plate and the positioning plates, the middle parts of the two fixing plates are provided with a downward-opening containing groove, the rear end of the cover plate is provided with a fixing groove, and the first locking piece is clamped in the fixing groove and is used for locking by pressing the cover plate through the front end of the first locking piece and the rear end of the first locking piece. The invention also provides a composite material template reinforcing system which has simple structure, convenient and safe use and can be used for reinforcing the composite material template to prevent the quality problems of running the template, slurry leakage and the like.
Description
Technical Field
The invention relates to a reinforced workpiece, in particular to a reinforced structure and a composite material template reinforcing system.
Background
In the construction process, the building templates are reinforced, and particularly before concrete is poured, the building templates are reinforced for preventing the expansion of the templates. The composite material template is a novel environment-friendly high-tech composite material template and is mainly applied to various concrete constructions.
The reinforcement methods commonly used at present are: the periphery of the composite material template is connected through round pins and pin sheets, the composite material template is not reinforced by adopting a site combination of a steel pipe with a certain length and a traditional scattered fastener, so that the composite material template is reinforced, the horizontal flatness and the vertical flatness of the composite material template are not reinforced in the prior art, and the defects of the prior art mainly include that 1, the composite material template is reinforced by not using a set of mature reinforcing fasteners, so that the reinforcing operation is complicated, the reinforcing time is long, the reinforcing workload is large, the construction period is prolonged, the working efficiency is low, and the construction cost is high; 2. in the prior art, the composite material template is not reinforced or is reinforced but is not firmly fixed, and the composite material template is displaced or separated in the using and fixing processes, so that the quality problems of mold expansion and the like are caused, and the construction quality is difficult to guarantee. In view of this, the present invention has been studied for this characteristic and has resulted in the present invention.
Disclosure of Invention
One of the technical problems to be solved by the present invention is to provide a reinforcing structure.
One of the problems of the present invention is achieved by: the invention relates to a reinforcing structure, which comprises two fixing plates arranged vertically, a connecting plate arranged vertically, a cover plate arranged horizontally and a first locking piece, wherein the two fixing plates are arranged oppositely, the left end and the right end of the connecting plate are respectively connected with the rear ends of the two fixing plates, the front ends of the two fixing plates are respectively provided with a positioning plate, the left end and the right end of the cover plate are respectively connected with the upper ends of the two positioning plates, a containing cavity is formed among the fixing plates, the connecting plate, the cover plate and the positioning plates, the middle parts of the two fixing plates are provided with a downward-opening placing groove, the rear end of the cover plate is provided with a fixing groove, and the first locking piece is clamped in the fixing groove and is used for locking by pressing the cover plate through the front end of the first locking piece and the rear end of the cover plate.
Further, the first locking piece is a pin piece, the front end of the first locking piece is provided with a first inclined plane, the rear end of the first locking piece is provided with a first plane, the first inclined plane compresses the cover plate, and the first plane compresses the product; or the front end of the first locking piece is provided with a first plane, the rear end of the first locking piece is provided with a first inclined plane, the first plane compresses the cover plate, and the first inclined plane compresses the product; and the first locking piece is in an arc shape.
Further, a first vertically arranged reinforcing plate is connected to the lower portion of the rear end of the cover plate, the left end and the right end of the first reinforcing plate are respectively connected with the front ends of the two fixing plates, a chute is arranged in the middle of the first reinforcing plate, and the upper end of the chute is communicated with the fixing grooves; the upper end of the connecting plate is connected with a second reinforcing plate which is horizontally arranged, and the left end and the right end of the second reinforcing plate are respectively connected with the rear ends of the two fixing plates.
Further, the two lower ends of the placement groove are respectively provided with a second inclined plane extending outwards; the two positioning blocks are right-angled triangles, a right-angle surface of each positioning block is attached to the front ends of the two fixing blocks, and the other right-angle surface is connected with the left end and the right end of the cover plate;
the two positioning plates and the cover plate and the two fixing plates and the connecting plate are mutually clamped and matched through grooves and protruding blocks to be fixed.
The second technical problem to be solved by the invention is to provide a composite material template reinforcing system.
The second problem of the present invention is achieved by: the utility model provides a combined material template reinforcement system, includes two at least combined material templates, at least a horizontal side's pipe, at least a vertical side's pipe, at least a reinforced structure and at least a reinforcing apparatus, the reinforced structure includes two fixed plates of vertical setting, a connecting plate of vertical setting, a apron and a first locking piece of horizontal setting, two the fixed plate sets up relatively, the both ends are connected with the rear end of two fixed plates respectively about the connecting plate, two the front end of fixed plate all is equipped with a locating plate, the both ends are connected with the upper end of two locating plates respectively about the apron, form a accommodation chamber between fixed plate, connecting plate, apron and the locating plate, two the middle part of fixed plate is equipped with an opening downward mounting groove, horizontal side's pipe is installed in the mounting groove, vertical side's pipe passes the accommodation chamber to paste and locates the front end of horizontal side's pipe, the rear end of apron is equipped with a fixed slot, first locking piece card is located in the fixed slot, and presses the apron and vertical side's pipe to hold in this accommodation chamber with horizontal side's pipe through the front end of first side's pipe and rear end compression; the transverse square tube is fixed on the front surfaces of the two composite material templates through the reinforcing device.
Further, the first locking piece is a pin piece, the front end of the first locking piece is provided with a first inclined plane, the rear end of the first locking piece is provided with a first plane, the first inclined plane compresses the cover plate, and the first plane compresses the longitudinal square tube; or the front end of the first locking piece is provided with a first plane, the rear end of the first locking piece is provided with a first inclined plane, the first plane compresses the cover plate, and the first inclined plane compresses the longitudinal square tube; the first locking piece is in an arc shape;
a first vertically arranged reinforcing plate is connected below the rear end of the cover plate, the left end and the right end of the first reinforcing plate are respectively connected with the front ends of the two fixing plates, a chute is arranged in the middle of the first reinforcing plate, and the upper end of the chute is communicated with the fixing grooves; the upper end of the connecting plate is connected with a second reinforcing plate which is horizontally arranged, and the left end and the right end of the second reinforcing plate are respectively connected with the rear ends of the two fixing plates;
the two lower ends of the placement groove are respectively provided with a second inclined plane extending outwards; the two positioning blocks are right-angled triangles, a right-angle surface of each positioning block is attached to the front ends of the two fixing blocks, and the other right-angle surface is connected with the left end and the right end of the cover plate;
The two positioning plates and the cover plate and the two fixing plates and the connecting plate are mutually clamped and matched through grooves and protruding blocks to be fixed.
Further, the reinforcing device is a reinforcing fastener, a plurality of connecting holes are formed in the periphery of each composite material template, the reinforcing fastener comprises a first fixing block, a second locking piece and a first connecting piece, and the first fixing block comprises a first top plate which is horizontally arranged, a first side plate which is vertically arranged and a first bottom plate which is horizontally arranged; the left end of the first top plate is fixed above the front end of the first side plate, the left end of the first bottom plate is fixed below the front end of the first side plate, a locking groove is formed in the left end of the first top plate, a positioning groove is formed in the left end of the first bottom plate, and the locking groove and the positioning groove are arranged oppositely;
the right surface of the first side plate is attached to the left surface of the right end part of a composite material template, the rear ends of the first top plate and the first bottom plate are propped against the front surface of the right end part of the composite material template, the first connecting piece sequentially passes through the rear end of the first side plate, the connecting hole of the right end part of the composite material template and the connecting hole of the left end part of the other composite material template, and the first side plate and the two composite material templates are locked through the first connecting piece; the upper part of the rear end of the second locking piece is provided with a third inclined plane, the lower part of the rear end of the second locking piece is provided with a fourth inclined plane, the transverse square tube is arranged on the first top plate, the second locking piece is sequentially inserted into the locking groove and the positioning groove from top to bottom, the third inclined plane abuts against the front end of the transverse square tube, the fourth inclined plane abuts against the rear end of the positioning groove, and the transverse square tube is clamped on the front surfaces of the two composite material templates through the third inclined plane and the fourth inclined plane.
Further, the front end of the second locking piece is provided with a second plane, and an angle alpha 1 formed by the third inclined plane and the vertical direction is smaller than an angle alpha 2 formed by the fourth inclined plane and the vertical direction; the bottom of the second locking piece is provided with a wedge-shaped block, the front end of the wedge-shaped block is provided with a fifth inclined plane, and a gap is arranged between the rear end of the wedge-shaped block and the fourth inclined plane; a positioning block is arranged at the lower end of the wedge-shaped block and at the lower part of the front end of the first side plate;
the rear end of the first side plate is provided with a through hole, the first connecting piece comprises a first pin and a first pin piece, the head part of the first pin is provided with a first limiting head, the tail part of the first pin is provided with a first slot, and the tail part of the first pin is sequentially penetrated into the through hole, a connecting hole at the right end part of a composite material template and a connecting hole at the left end part of another composite material template and is inserted into the first slot for locking through the first pin piece;
a third vertically arranged reinforcing plate is connected to the lower part of the rear end of the first bottom plate, and the rear surface of the third reinforcing plate is propped against the front surface of the right end part of a composite material template;
the middle part of the first side plate is provided with a slot, and a boss protruding leftwards is arranged in the slot.
Further, the reinforcing device is a reinforcing tool, a plurality of connecting holes are formed in the periphery of each composite material template, the reinforcing tool comprises a second fixing block, two second connecting pieces and a third locking piece, the second fixing block comprises a second top plate which is vertically arranged, a second side plate which is vertically arranged and a second bottom plate which is vertically arranged, the front end of the second top plate is fixedly connected with the upper end of the second side plate, and the front end of the second bottom plate is fixedly connected with the lower end of the second side plate;
the right surfaces of the second top plate and the second bottom plate are attached to the left surface of the right end part of a composite material template, and the two second connecting pieces penetrate through the rear end of the second top plate and the rear end of the second bottom plate respectively and sequentially penetrate through the connecting hole of the right end part of the composite material template and the connecting hole of the left end part of the other composite material template, and lock the rear end of the second top plate and the rear end of the second bottom plate with the two composite material templates through the second connecting pieces;
the U-shaped installation groove with a backward opening is formed among the second top plate, the second side plate and the second bottom plate, the transverse square tube is installed in the U-shaped installation groove, a clamping groove is communicated with the U-shaped installation groove at the rear end of the second side plate, the third locking piece is clamped in the clamping groove, the front end of the third locking piece is tightly pressed on the second side plate, and the rear end of the third locking piece is tightly pressed on the transverse square tube to tightly clamp the transverse square tube on the front surfaces of the two composite material templates.
Further, the third locking piece is a pin piece, the front end of the third locking piece is provided with a sixth inclined plane, the rear end of the third locking piece is provided with a third plane, the sixth inclined plane compresses the second side plate, and the third plane compresses the transverse square tube; or the front end of the third locking piece is provided with a third plane, the rear end of the third locking piece is provided with a sixth inclined plane, the third plane compresses the second side plate, and the sixth inclined plane compresses the transverse square tube; the third locking piece is in an arc shape;
the rear end of the second top plate and the rear end of the second bottom plate are correspondingly provided with at least one mounting hole, each second connecting piece comprises a second pin and a second pin piece, the head part of the second pin is provided with a second limiting head, the tail part of the second pin is provided with a second slot, the tail part of the second pin respectively passes through the mounting hole of the second top plate and the mounting hole of the second bottom plate and sequentially passes through the connecting hole of the right end part of one composite material template and the connecting hole of the left end part of the other composite material template, and the rear ends of the second top plate and the second bottom plate are locked with the two composite material templates by inserting the second pin pieces into the second slots;
One end of each second pin piece is provided with a fourth plane, the other end of each second pin piece is provided with a seventh inclined plane, and the two second pin pieces are arc-shaped;
the second top plate, the second side plate and the second bottom plate are integrally formed.
The invention has the advantages that:
1. the composite material template is reinforced by adopting the reinforcing structure, the transverse square tube is used as the main back edge for supporting the composite material template, the longitudinal square tube is used as the secondary back edge for supporting the composite material template, and the periphery of the transverse square tube is surrounded and fixed on the back of the composite material template, so that the composite material template can be reinforced, the reinforcing operation is simple, the reinforcing time is short, the reinforcing workload is small, the construction period is short, the working efficiency is high, and the construction cost is low; the locking connection is carried out through the pin sheets, so that the installation is convenient, simple and firm;
2. the reinforcing structure is adopted to reinforce the composite material template, the horizontal square tube has the function of reinforcing the flatness and strength of the composite material template in the horizontal direction, the vertical square tube has the function of reinforcing the flatness and strength of the composite material template in the vertical direction, the horizontal square tube has the function of reinforcing the flatness and strength of the composite material template in the horizontal direction, the composite material template is firmly reinforced, the composite material template is not easy to deform, the conditions of easy die running, slurry leakage and the like are not easy to occur in the using and fixing processes, the problems of easy die running, slurry leakage and the like are solved, the construction quality is ensured, and the method is an economical and applicable practical technology with convenient operation and reliable quality, and has good popularization prospect.
Drawings
The invention will be further described with reference to examples of embodiments with reference to the accompanying drawings.
Fig. 1 is an exploded view of a reinforcement structure according to the present invention.
Fig. 2 is a perspective view of a reinforcing structure according to the present invention.
Fig. 3 is a front view of a reinforcing structure according to the present invention.
Fig. 4 is a schematic view of the cover plate, the first reinforcing plate and the first locking piece according to the present invention.
FIG. 5 is a schematic structural diagram of a composite form reinforcement system according to the present invention.
Fig. 6 is an exploded view of a reinforcement fastener of the present invention.
Fig. 7 is a perspective view of a reinforcement clip according to the present invention.
Fig. 8 is a second perspective view of a reinforcement clip according to the present invention.
FIG. 9 is a schematic view of the installation of a reinforcement fastener with a composite form according to the present invention.
FIG. 10 is a schematic view of the installation of the reinforcement fastener of the present invention with a composite form and a transverse form.
Fig. 11 is a state diagram of the fastening buckle in the present invention when clamped.
Fig. 12 is a state diagram of the fastening fastener according to the present invention when the fastening fastener is released.
FIG. 13 is a second schematic diagram of a composite form reinforcement system according to the present invention.
Fig. 14 is an exploded view of a reinforcement tool according to the present invention.
Fig. 15 is a schematic structural view of a reinforcement tool according to the present invention.
Fig. 16 is a top view of a reinforcement tool of the present invention (when the first inclined surface of the locking tab contacts the side plate).
Fig. 17 is a top view of a reinforcement tool of the present invention (when the first plane of the locking tab is in contact with the side plate).
FIG. 18 is a schematic view of the installation of a reinforcement tool and composite form of the present invention.
FIG. 19 is a schematic view of the installation of the reinforcement tool, composite forms and transverse forms of the present invention.
Fig. 20 is a side view of fig. 19.
The reference numerals in the figures illustrate:
the reinforcing structure 100, the fixing plate 101, the connecting plate 102, the cover plate 103, the first locking piece 104, the positioning plate 105, the accommodating cavity 106, the fixing groove 107, the first inclined plane 108, the first plane 109, the first reinforcing plate 110, the inclined groove 111, the second reinforcing plate 112, the accommodating groove 113, the second inclined plane 114, the groove 115 and the protruding block 116;
composite templates 200 (200A, 200B), connecting holes 201, right end 202, left end 203, shims 204, screws 205;
a horizontal square tube 300 and a vertical square tube 301;
the fastening device comprises a fastening clip 400, a first fixing block 401, a second locking piece 402, a first pin 403, a first pin piece 404, a first top plate 405, a first side plate 406, a first bottom plate 407, a locking groove 408, a positioning groove 409, a through hole 410, a first positioning head 411, a first slot 412, a third reinforcing plate 413, a slot 414, a wedge block 415, a notch 416, a third inclined surface 417, a fourth inclined surface 418, a fifth inclined surface 419, a positioning block 420, a boss 421, a second plane 422, and a first connecting piece 423;
The reinforcement tool 500 (reinforcement tool 500A, reinforcement tool 500B), the second fixing block 501, the third locking piece 502, the second connecting piece 503, the second top plate 504, the second side plate 505, the second bottom plate 506, the U-shaped mounting groove 507, the clamping groove 508, the sixth inclined surface 509, the mounting hole 510, the second pin 511, the second pin piece 512, the second stopper 513, the second slot 514, the third flat surface 515, the fourth flat surface 516, and the seventh inclined surface 517.
Detailed Description
Referring to fig. 1 to 4, in the reinforcing structure of the present invention, the reinforcing structure 100 includes two vertically disposed fixing plates 101, a vertically disposed connecting plate 102, a horizontally disposed cover plate 103 and a first locking piece 104, the two fixing plates 101 are disposed opposite to each other, the left and right ends of the connecting plate 102 are respectively connected with the rear ends of the two fixing plates 101, the front ends of the two fixing plates 101 are respectively provided with a positioning plate 105, the left and right ends of the cover plate 103 are respectively connected with the upper ends of the two positioning plates 105, a receiving cavity 106 is formed among the fixing plates 101, the connecting plate 102, the cover plate 103 and the positioning plates 105, the receiving cavity 106 is used for placing products (such as a transverse square tube 300 and a longitudinal square tube 301), a positioning slot 113 with a downward opening is disposed in the middle of the two fixing plates 101, the positioning slot 113 is used for passing through the transverse square tube 300, the rear end of the cover plate 103 is provided with a fixing slot 107, the first locking piece 104 is clamped in the fixing slot 107, and the front end of the first locking piece 104 is pressed against the cover plate 103, and then the products are pressed against each other. The product is a workpiece that is mounted in the receiving cavity 106 and is gripped by the first locking tab 104.
Preferably, the first locking piece 104 is a pin piece, the front end of the first locking piece 104 has a first inclined plane 108, the rear end of the first locking piece 104 has a first plane 109, the first inclined plane 108 presses the cover plate 103, and the first plane 109 presses the product; or the front end of the first locking piece 104 is provided with a first plane 109, the rear end of the first locking piece 104 is provided with a first inclined plane 108, the first plane 109 presses the cover plate 103, and the first inclined plane 108 presses the product; and the first locking piece 104 is arc-shaped. The function of the arc and the inclined surface is to enable the first locking piece 104 to be locked on the longitudinal square tube 301 more tightly; the first locking piece 104 is used for locking, namely, knocking and tightening, and the rear end part of the first locking piece 104 is inclined to be knocked and tightened more and is flat to be knocked and tightened more.
Preferably, a first vertical reinforcing plate 110 is connected below the rear end of the cover plate 103, the left and right ends of the first reinforcing plate 110 are respectively connected with the front ends of the two fixing plates 101, and the first reinforcing plate 110 is used for reinforcing the strength of the cover plate 103 and the front ends of the two fixing plates 101 and also reinforcing the hardness of the fixing groove 107; the middle part of the first reinforcing plate 110 is provided with a chute 111, the upper end of the chute 111 is communicated with the fixed groove 107, the chute 111 is in an inverted V shape, and the chute 111 has the function that an awl can be directly knocked at the tail end of the first locking plate 104 when the first locking plate 104 is pushed out; the upper end of the connecting plate 102 is connected with a second reinforcing plate 112 which is horizontally arranged, the left and right ends of the second reinforcing plate 112 are respectively connected with the rear ends of the two fixing plates 101, and the second reinforcing plate 112 is used for reinforcing the strength of the rear ends of the connecting plate 102 and the two fixing plates 101.
Preferably, the two lower ends of the mounting groove 113 are respectively provided with a second inclined surface 114 extending outwards, which is convenient for inserting the transverse square tube 300 and saves materials; the two positioning blocks 105 are right-angled triangles, a right-angle surface of each positioning block 105 is attached to the front ends of the two fixing blocks 101, the other right-angle surface is connected with the left end and the right end of the cover plate 103, and compared with a rectangular structure, the triangular structure can save more materials;
the two positioning plates 105 and the cover plate 103 and the two fixing plates 101 and the connecting plate 102 are fixed by mutually clamping and matching the grooves 115 and the protruding blocks 116, and the matching of the grooves 115 and the protruding blocks 116 is more convenient for installation.
The reinforcing structure can be applied to reinforcement of different products, is quite commonly used for reinforcement of building templates, and adjusts the sizes of the accommodating cavity 106 and the accommodating groove 113 according to the specifications of the products so as to be suitable for reinforcement of different products. In the present invention, the reinforcement structure 100 is applied to the composite material formwork 200, and the transverse square tube 300 is fixed on the composite material formwork 200 through the reinforcement structure 100, so that the reinforcement effect on the two composite material formworks 200 is achieved.
As shown in fig. 1 to 20, a composite material formwork reinforcing system of the present invention comprises at least two composite material formworks 200, at least one transverse square tube 300, at least one longitudinal square tube 301, at least one reinforcing structure 100 and at least one reinforcing device, wherein the reinforcing structure 100 comprises two fixing plates 101 arranged vertically, a connecting plate 102 arranged vertically, a cover plate 103 arranged horizontally and a first locking piece 104,
the two fixing plates 101 are oppositely arranged, the left and right ends of the connecting plate 102 are respectively connected with the rear ends of the two fixing plates 101, the front ends of the two fixing plates 101 are respectively provided with a positioning plate 105, the left and right ends of the cover plate 103 are respectively connected with the upper ends of the two positioning plates 105, a containing cavity 106 is formed among the fixing plates 101, the connecting plate 102, the cover plate 103 and the positioning plates 105, the containing cavity 106 is used for containing a transverse square tube 300 and a longitudinal square tube 301, a positioning groove 113 with a downward opening is formed in the middle of the two fixing plates 101, the transverse square tube 300 is installed in the positioning groove 113, the longitudinal square tube 302 penetrates through the containing cavity 106 and is attached to the front end of the transverse square tube 300, the rear end of the cover plate 103 is provided with a fixing groove 107, the first locking piece 104 is clamped in the fixing groove 107, and the front end of the first locking piece 104 is used for pressing the cover plate 103, and the rear end of the longitudinal square tube 301 is pressed to lock the transverse square tube 300 and the longitudinal square tube 301 in the containing cavity 106; the transverse square tubes 300 are fixed on the front surfaces of the two composite material templates 200 through reinforcing devices, the rear end faces of the transverse square tubes 300 are tightly attached to the front surfaces of the composite material templates 200, and the rear ends of the reinforcing structures 100 penetrate into the inner cavities of the composite material templates 200.
Preferably, the first locking piece 104 is a pin piece, the front end of the first locking piece 104 has a first inclined plane 108, the rear end of the first locking piece 104 has a first plane 109, the first inclined plane 108 presses the cover plate 103, and the first plane 109 presses the longitudinal square tube 301; or the front end of the first locking piece 104 is provided with a first plane 109, the rear end of the first locking piece 104 is provided with a first inclined plane 108, the first plane 109 presses the cover plate 103, and the first inclined plane 108 presses the longitudinal square tube 301; and the first locking piece 104 is arc-shaped. The function of the arc and the inclined surface is to enable the first locking piece 104 to be locked on the longitudinal square tube 301 more tightly; the first locking piece 104 is used for locking, namely, knocking and tightening, and the rear end part of the first locking piece 104 is inclined to be knocked and tightened more and is flat to be knocked and tightened more.
Preferably, a first vertical reinforcing plate 110 is connected below the rear end of the cover plate 103, the left and right ends of the first reinforcing plate 110 are respectively connected with the front ends of the two fixing plates 101, and the first reinforcing plate 110 is used for reinforcing the strength of the cover plate 103 and the front ends of the two fixing plates 101 and also reinforcing the hardness of the fixing groove 107; the middle part of the first reinforcing plate 110 is provided with a chute 111, the upper end of the chute 111 is communicated with the fixed groove 107, the chute 111 is in an inverted V shape, and the chute 111 has the function that an awl can be directly knocked at the tail end of the first locking plate 104 when the first locking plate 104 is pushed out; the upper end of the connecting plate 102 is connected with a second reinforcing plate 112 which is horizontally arranged, the left and right ends of the second reinforcing plate 112 are respectively connected with the rear ends of the two fixing plates 101, and the second reinforcing plate 112 is used for reinforcing the strength of the rear ends of the connecting plate 102 and the two fixing plates 101.
Preferably, the two lower ends of the mounting groove 113 are respectively provided with a second inclined surface 114 extending outwards, which is convenient for inserting the transverse square tube 300 and saves materials; the two positioning blocks 105 are right-angled triangles, a right-angle surface of each positioning block 105 is attached to the front ends of the two fixing blocks 101, the other right-angle surface is connected with the left end and the right end of the cover plate 103, and compared with a rectangular structure, the triangular structure can save more materials;
preferably, the two positioning plates 105 and the cover plate 103 and the two fixing plates 101 and the connecting plate 102 are fixed by clamping the grooves 115 and the protruding blocks 116, and the matching of the grooves 115 and the protruding blocks 116 is more convenient for installation.
The reinforcement device is a reinforcement fastener 400 or a reinforcement tool 500, and two embodiments are provided to further describe the reinforcement fastener 400 and the reinforcement tool 500.
Embodiment one:
as shown in fig. 6 to 12, the reinforcing device is a reinforcing fastener 400, a plurality of connecting holes 201 are formed around each composite material template 200, the reinforcing fastener 400 includes a first fixing block 401, a second locking piece 402, a first pin 403 and a first pin piece 404, and the first fixing block 401 includes a first top plate 405 horizontally arranged, a first side plate 406 vertically arranged and a first bottom plate 407 horizontally arranged; in this embodiment, two composite templates 200 are used for illustration, namely a composite template 200A and a composite template 200B;
The left end of the first top plate 405 is fixed above the front end of the first side plate 406, the left end of the first bottom plate 407 is fixed below the front end of the first side plate 406, a locking groove 408 is arranged at the left end of the first top plate 405, a positioning groove 409 is arranged at the left end of the first bottom plate 407, and the locking groove 408 and the positioning groove 409 are arranged opposite to each other;
the right surface of the first side plate 406 is attached to the left surface of the right end 202 of the composite material template 200A, the rear ends of the first top plate 405 and the first bottom plate 407 are abutted against the front surface of the right end 202 of the composite material template 200A, and the first connecting piece 423 sequentially passes through the rear end of the first side plate 406, the connecting hole 201 of the right end 202 of the composite material template 200A and the connecting hole 201 of the left end 203 of the composite material template 200B, and the first side plate 406 and the two composite material templates 200 are locked by the connecting piece 423; the front end of the second locking piece 402 has a second plane 422, the upper part of the rear end of the second locking piece 402 has a third inclined plane 417, the lower part of the rear end of the second locking piece 402 has a fourth inclined plane 418, the transverse square tube 300 is disposed on the first top plate 405, the second locking piece 402 is sequentially inserted into the locking groove 408 and the positioning groove 409 from top to bottom, the third inclined plane 417 abuts against the front end of the transverse square tube 300, the fourth inclined plane 418 abuts against the rear end of the positioning groove 409, and the transverse square tube 300 is clamped on the front surfaces of the two composite material templates 200 through the first inclined plane 417 and the second inclined plane 418.
Preferably, an angle α1 formed by the third inclined surface 417 and the vertical direction is smaller than an angle α2 formed by the fourth inclined surface 418 and the vertical direction; the second locking piece 402 is used for locking, namely, knocking and tightening, the rear end part of the second locking piece 402 is inclined to be knocked and tightened more and is flat to be knocked and tightened more; as shown in fig. 11, the locking engagement of the second locking piece 402 with the transverse square tube 300 is performed by 3 points, i.e., point a, point B, and point C, where the second locking piece 402 is locked with the first fixing block 401, and then the point a is pressed into the transverse square tube 300, thereby completing the locking of the second locking piece 402 with the transverse square tube 300.
Preferably, a wedge 415 is provided at the bottom of the second locking piece 402, and a fifth inclined surface 419 is provided at the front end of the wedge 415, and the inclination of the fifth inclined surface 419 is to increase the thickness d of the wedge 415, so that the wedge 415 is not easy to break.
Preferably, a gap 416 is provided between the rear end of the wedge 415 and the fourth inclined surface; the notch 416 is used for releasing the second locking piece 402 when the transverse square tube 300 needs to be taken out, the notch 416 is the clamping position for releasing the second locking piece 402, when the transverse square tube 300 needs to be put in or taken out, the second locking piece 402 can be released to be opened, the notch 416 can be clamped in the positioning groove 409 after the second locking piece is released, the second locking piece cannot rebound to a locking state, and the second locking piece cannot be clamped and moved, so that the transverse square tube 300 can be put in or taken out easily.
Preferably, a positioning block 420 is arranged at the lower end of the wedge block 415 and the lower part of the front end of the first side plate 406, the wedge block 415 adopts the positioning block 420, when the second locking piece 402 is lifted up to the positioning block 420 at the lower end of the wedge block 415, the positioning block 420 at the lower end of the wedge block 415 can not pass through the locking groove 408 due to the obstruction of the positioning block 420 at the lower part of the front end of the first side plate 406 and the first top plate 405, so that the second locking piece 402 can be fixed in the first fixing block 401 through the two positioning blocks 420, the second locking piece 402 can only move in the fixing range of the first fixing block 401, and the second locking piece 402 and the first fixing block 401 are combined into a whole, so that the second locking piece 402 can not fall out and the second locking piece 402 is prevented from being lost during use.
Preferably, the rear end of the first side plate 406 is provided with a through hole 410, the connecting piece comprises a pin 103 and a pin piece 104, the head of the pin 103 is provided with a first positioning head 411, the tail of the first pin 403 is provided with a first slot 412, and the tail of the first pin 403 is sequentially inserted into the through hole 410, the connecting hole 201 of the right end 202 of the composite material template 200A and the connecting hole 201 of the left end 203 of the other composite material template 200B, and is inserted into the first slot 412 for locking through the first pin piece 404; the first pin 403 is cylindrical, the circle near the head is large to match the through hole 410, the circle near the tail is small to facilitate insertion and withdrawal of the connecting hole 201 of the composite template 200; the first pin piece 404 is arc-shaped, one end of the first pin piece 404 is a plane, the other end is an inclined plane, and the arc-shaped and the inclined plane have the function of enabling the first pin piece 404 to be locked on the first pin 403 more tightly; or the connecting piece comprises a screw (not shown) and a nut (not shown), wherein the screw sequentially penetrates through the through hole 410, the connecting hole 201 of the right end part 202 of the composite material template 200A and the connecting hole 201 of the left end part 203 of the other composite material template 200B, and is locked by the nut; (due to the very firm screw and nut locks, but 1. The screw and nut locks are used for a tool wrench, and the pin piece is a hammer which is used for a worker to do other things, 2. The screw and nut is more difficult to knock out than the pin piece after being covered by cement and affects the secondary use after being covered by cement, 3. The most important worker's installation efficiency, the screw and nut installation speed is much slower than that of the first pin 403 and the first pin piece 404). The screw nut and the first pin piece 404 of the first pin 403 can be fixedly connected, but the first pin piece 404 of the first pin 403 has better effect.
Preferably, a third vertically disposed reinforcing plate 413 is connected to the lower portion of the rear end of the first bottom plate 407, and the rear surface of the third reinforcing plate 413 is abutted against the front surface of the right end 202 of the composite material formwork 200A, so that the third reinforcing plate 413 has the function of increasing the contact area with the composite material formwork 200A, so as to not easily damage the composite material formwork 200A, and also increase the strength of the first bottom plate 407.
Preferably, a slot 414 is formed in the middle of the first side plate 406, and a boss protruding leftwards is formed in the slot 414; the gasket 204 is usually installed on the inner wall of the periphery of the composite material template 200, the gasket 204 is fixed by the screw 205, and the groove 414 is used for avoiding the screw 205 of the gasket 204 on the left surface of the right end 202 of the composite material template 200, so that the installation is convenient; while the provision of the boss 421 also enhances the rigidity of the first side plate 406.
Embodiment two:
as shown in fig. 14 to 20, the reinforcing device is a reinforcing tool 500, a plurality of connecting holes 201 are formed around each composite material template 200, the reinforcing tool 500 includes a second fixing block 501, a third locking piece 502, and two second connecting pieces 503, the second fixing block 501 includes a vertically arranged second top plate 504, a vertically arranged second side plate 505, and a vertically arranged second bottom plate 506, the front end of the second top plate 504 is fixedly connected with the upper end of the second side plate 505, and the front end of the second bottom plate 506 is fixedly connected with the lower end of the second side plate 505; preferably, the second top plate 504, the second side plate 505 and the second bottom plate 506 are integrally formed; two and three composite templates 200 are used for illustration in the present invention, and the two composite templates 200 are respectively a composite template 200A and a composite template 200B, not shown, and see the partial structure of fig. 19; three composite templates 200 are composite template 200A and composite template 200B and composite template 200C, respectively, as shown in fig. 19;
The invention comprises two composite material templates 200 (composite material templates 200A and 200B), a transverse square tube 300 and a reinforcing tool 500, wherein the right surfaces of a second top plate 504 and a second bottom plate 506 are attached to the left surface of the right end 202 of the composite material template 200, and two second connecting pieces 503 respectively pass through the rear end of the second top plate 504 and the rear end of the second bottom plate 506 and sequentially pass through a connecting hole 201 of the right end 202 of the composite material template 200 and a connecting hole 201 of the left end 203 of the other composite material template 200, and the rear end of the second top plate 504 and the rear end of the second bottom plate 506 are locked with the two composite material templates 200 through the second connecting pieces 503;
the second top plate 504, the second side plate 505 and the second bottom plate 506 form a U-shaped installation groove 507 with a backward opening, the transverse square tube 300 is installed in the U-shaped installation groove 507, a clamping groove 508 is communicated with the U-shaped installation groove 507 at the rear end of the second side plate 505, the third locking piece 502 is clamped in the clamping groove 508, and the front end of the third locking piece 502 presses the second side plate 505 and the rear end presses the transverse square tube 300 to clamp the transverse square tube 300 on the front surface of the two composite material templates 200.
Preferably, the third locking piece 502 is a pin piece, the front end of the third locking piece 502 has a sixth inclined plane 509, the rear end of the third locking piece 502 has a third plane 515, the sixth inclined plane 509 presses the second side plate 505, and the third plane 515 presses the transverse square tube 300; or the front end of the third locking piece 502 is provided with a third plane 515, the rear end of the third locking piece 502 is provided with a sixth inclined plane 509, the third plane 515 presses the side plate 505, and the sixth inclined plane 509 presses the transverse square tube 300; the third locking piece 502 is arc-shaped, and the arc and the inclined plane have the functions of enabling the third locking piece 502 to be locked on the transverse square tube 300 more tightly; the third locking piece 502 is locked, namely knocked, and the rear end part of the third locking piece 502 is inclined to be knocked more tightly, and is flat to be knocked more tightly; as shown in fig. 20, the locking engagement of the third locking piece 502 with the transverse square tube 300 is performed by a point D formed by the rear end surface of the third locking piece 502 contacting the front end surface of the transverse square tube 300 and a point E formed by the front end surface of the third locking piece 502 contacting the second side plate 505; when the front end surface of the third locking piece 502 is a plane and the rear end surface is an inclined surface, the point E is any point on the contact surface between the front end of the third locking piece 502 and the second side plate 505, and the point D is a point where the rear end of the third locking piece 502 contacts the transverse square tube 300; when the rear end surface of the third locking piece 502 is a plane and the front end surface is an inclined surface, the point E is a point where the front end of the third locking piece 502 contacts the second side plate 505, and the point E is any point on the contact surface between the rear end of the third locking piece 502 and the transverse square tube 300.
Preferably, at least one mounting hole 510 is correspondingly formed at the rear end of the second top plate 504 and the rear end of the second bottom plate 506, and the number, the position and the size of the mounting holes 510 are set according to the characteristics of the product to be reinforced; each second connecting piece 503 comprises a second pin 511 and a second pin piece 512, the head of the second pin 511 is provided with a second limiting head 513, the tail of the second pin 511 is provided with a second slot 514, the tail of the second pin 511 respectively passes through the mounting hole 510 of the second top plate 504 and the mounting hole 510 of the second bottom plate 506, and sequentially passes through the connecting hole 201 of the right end 202 of one composite material template 200 and the connecting hole 201 of the left end 203 of the other composite material template 200, and the second pin piece 512 is inserted into the second slot 514 to lock the rear ends of the second top plate 504 and the second bottom plate 506 with the two composite material templates 200; the second pin 511 is cylindrical, the circle near the head is large to match with the mounting hole 550, the circle near the tail is small to facilitate insertion and withdrawal of the connection hole 201 of the composite material template 200; one end of each second pin piece 512 is provided with a fourth plane 516, the other end is provided with a seventh inclined plane 517, and the two second pin pieces 512 are arc-shaped, and the arc-shaped and the inclined planes function to enable the second pin pieces 512 to be locked on the second pins 511 more tightly;
Or the second connecting piece 503 comprises a screw (not shown) and a nut (not shown), the screw is inserted into the mounting hole 550 and locked by the nut; (1. Because the screw and nut lock is very strong, the screw and nut lock is used for a tool spanner, and the pin piece is a hammer which is used for a hand of a worker, 2. The screw and nut is more difficult to knock out than the pin piece after being covered by cement and affects the secondary use after being covered by cement, 3. The most important worker's installation efficiency, the screw and nut installation speed is much slower than that of the second pin piece 512 of the second pin 511). The screw and nut and the second pin 511 and the second pin 512 can be fixedly connected, but the second pin 511 and the second pin 512 have better effect.
As shown in fig. 19, the present invention includes three composite templates 200 (composite template 200A, composite template 200B, and composite template 200C), a transverse square tube 300, and two reinforcing tools 500 (reinforcing tool 500A and reinforcing tool 500B). The rear ends of the second top plate 504 and the second bottom plate 506 of the reinforcing tool 500A are fixedly connected with the composite material templates 200A and 200B, the rear ends of the second top plate 504 and the second bottom plate 506 of the reinforcing tool 500B are fixedly connected with the composite material templates 200C and 200B, and the transverse square tube 300 passes through the U-shaped mounting grooves 507 of the reinforcing tool 500A and the reinforcing tool 500B and is clamped on the front surfaces of the composite material templates 200A, 200B and 200C by the third locking pieces 502 of the reinforcing tool 500A and the reinforcing tool 500B.
Claims (3)
1. A composite form reinforcement system, characterized by: the reinforced structure comprises two vertically arranged fixing plates, a vertically arranged connecting plate, a horizontally arranged cover plate and a first locking piece, wherein the two fixing plates are oppositely arranged, the left end and the right end of the connecting plate are respectively connected with the rear ends of the two fixing plates, the front ends of the two fixing plates are respectively provided with a positioning plate, the left end and the right end of the cover plate are respectively connected with the upper ends of the two positioning plates, an accommodating cavity is formed among the fixing plates, the connecting plate, the cover plate and the positioning plates, an opening-down accommodating groove is formed in the middle of each fixing plate, the transverse square tube is arranged in the accommodating groove, the longitudinal square tube penetrates through the accommodating cavity and is attached to the front end of the transverse square tube, the rear end of the cover plate is provided with a fixing groove, and the first locking piece is clamped in the fixing groove, the cover plate is tightly pressed by the front end of the first locking piece, and the longitudinal square tube is tightly pressed by the rear end of the first locking piece to tightly lock the transverse square tube and the longitudinal square tube in the accommodating cavity; the transverse square tube is fixed on the front surfaces of the two composite material templates through a reinforcing device;
The first locking piece is a pin piece, the front end of the first locking piece is provided with a first inclined plane, the rear end of the first locking piece is provided with a first plane, the first inclined plane compresses the cover plate, and the first plane compresses the longitudinal square tube; or the front end of the first locking piece is provided with a first plane, the rear end of the first locking piece is provided with a first inclined plane, the first plane compresses the cover plate, and the first inclined plane compresses the longitudinal square tube; the first locking piece is in an arc shape;
a first vertically arranged reinforcing plate is connected below the rear end of the cover plate, the left end and the right end of the first reinforcing plate are respectively connected with the front ends of the two fixing plates, a chute is arranged in the middle of the first reinforcing plate, the upper end of the chute is communicated with the fixing groove, and the chute is of an inverted V shape; the upper end of the connecting plate is connected with a second reinforcing plate which is horizontally arranged, and the left end and the right end of the second reinforcing plate are respectively connected with the rear ends of the two fixing plates;
the two lower ends of the placement groove are respectively provided with a second inclined plane extending outwards; the two positioning plates are right-angled triangles, a right-angle surface of each positioning plate is attached to the front ends of the two fixing plates, and the other right-angle surface is connected with the left end and the right end of the cover plate;
The two positioning plates and the cover plate and the two fixing plates and the connecting plate are mutually clamped and matched through grooves and protruding blocks to be fixed;
the reinforcing device is a reinforcing fastener, a plurality of connecting holes are formed in the periphery of each composite material template, the reinforcing fastener comprises a first fixing block, a second locking piece and a first connecting piece, and the first fixing block comprises a first top plate which is horizontally arranged, a first side plate which is vertically arranged and a first bottom plate which is horizontally arranged; the left end of the first top plate is fixed above the front end of the first side plate, the left end of the first bottom plate is fixed below the front end of the first side plate, a locking groove is formed in the left end of the first top plate, a positioning groove is formed in the left end of the first bottom plate, and the locking groove and the positioning groove are arranged oppositely;
the right surface of the first side plate is attached to the left surface of the right end part of a composite material template, the rear ends of the first top plate and the first bottom plate are propped against the front surface of the right end part of the composite material template, the first connecting piece sequentially passes through the rear end of the first side plate, the connecting hole of the right end part of the composite material template and the connecting hole of the left end part of the other composite material template, and the first side plate and the two composite material templates are locked through the first connecting piece; the upper part of the rear end of the second locking piece is provided with a third inclined plane, the lower part of the rear end of the second locking piece is provided with a fourth inclined plane, the transverse square tube is arranged on the first top plate, the second locking piece is sequentially inserted into the locking groove and the positioning groove from top to bottom, the third inclined plane is propped against the front end of the transverse square tube, the fourth inclined plane is propped against the rear end of the positioning groove, and the transverse square tube is tightly clamped on the front surfaces of the two composite material templates through the third inclined plane and the fourth inclined plane;
The front end of the second locking piece is provided with a second plane, and an angle alpha 1 formed by the third inclined plane and the vertical direction is smaller than an angle alpha 2 formed by the fourth inclined plane and the vertical direction; the bottom of the second locking piece is provided with a wedge-shaped block, the front end of the wedge-shaped block is provided with a fifth inclined plane, and a gap is arranged between the rear end of the wedge-shaped block and the fourth inclined plane; a positioning block is arranged at the lower end of the wedge-shaped block and at the lower part of the front end of the first side plate;
the rear end of the first side plate is provided with a through hole, the first connecting piece comprises a first pin and a first pin piece, the head part of the first pin is provided with a first limiting head, the tail part of the first pin is provided with a first slot, and the tail part of the first pin is sequentially penetrated into the through hole, a connecting hole at the right end part of a composite material template and a connecting hole at the left end part of another composite material template and is inserted into the first slot for locking through the first pin piece; the first pin is cylindrical, the circle near one end of the head part is large, and the circle near one end of the tail part is small;
a third vertically arranged reinforcing plate is connected to the lower part of the rear end of the first bottom plate, and the rear surface of the third reinforcing plate is propped against the front surface of the right end part of a composite material template;
The middle part of the first side plate is provided with a slot, and a boss protruding leftwards is arranged in the slot.
2. A composite form reinforcement system as set forth in claim 1, wherein: the reinforcing device is a reinforcing tool, a plurality of connecting holes are formed in the periphery of each composite material template, the reinforcing tool comprises a second fixing block, two second connecting pieces and a third locking piece, the second fixing block comprises a second top plate, a second side plate and a second bottom plate, the second top plate is vertically arranged, the second side plate is vertically arranged, the second bottom plate is vertically arranged, the front end of the second top plate is fixedly connected with the upper end of the second side plate, and the front end of the second bottom plate is fixedly connected with the lower end of the second side plate;
the right surfaces of the second top plate and the second bottom plate are attached to the left surface of the right end part of a composite material template, and the two second connecting pieces penetrate through the rear end of the second top plate and the rear end of the second bottom plate respectively and sequentially penetrate through the connecting hole of the right end part of the composite material template and the connecting hole of the left end part of the other composite material template, and lock the rear end of the second top plate and the rear end of the second bottom plate with the two composite material templates through the second connecting pieces;
The U-shaped installation groove with a backward opening is formed among the second top plate, the second side plate and the second bottom plate, the transverse square tube is installed in the U-shaped installation groove, a clamping groove is communicated with the U-shaped installation groove at the rear end of the second side plate, the third locking piece is clamped in the clamping groove, the front end of the third locking piece is tightly pressed on the second side plate, and the rear end of the third locking piece is tightly pressed on the transverse square tube to tightly clamp the transverse square tube on the front surfaces of the two composite material templates.
3. A composite form reinforcement system as set forth in claim 2, wherein: the third locking piece is a pin piece, the front end of the third locking piece is provided with a sixth inclined plane, the rear end of the third locking piece is provided with a third plane, the sixth inclined plane presses the second side plate, and the third plane presses the transverse square tube; or the front end of the third locking piece is provided with a third plane, the rear end of the third locking piece is provided with a sixth inclined plane, the third plane compresses the second side plate, and the sixth inclined plane compresses the transverse square tube; the third locking piece is in an arc shape;
the rear end of the second top plate and the rear end of the second bottom plate are correspondingly provided with at least one mounting hole, each second connecting piece comprises a second pin and a second pin piece, the head part of the second pin is provided with a second limiting head, the tail part of the second pin is provided with a second slot, the tail part of the second pin respectively passes through the mounting hole of the second top plate and the mounting hole of the second bottom plate and sequentially passes through the connecting hole of the right end part of one composite material template and the connecting hole of the left end part of the other composite material template, and the rear ends of the second top plate and the second bottom plate are locked with the two composite material templates by inserting the second pin pieces into the second slots;
One end of each second pin piece is provided with a fourth plane, the other end of each second pin piece is provided with a seventh inclined plane, and the two second pin pieces are arc-shaped;
the second top plate, the second side plate and the second bottom plate are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811492812.7A CN109441105B (en) | 2018-12-07 | 2018-12-07 | Reinforced structure and composite material template reinforcing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811492812.7A CN109441105B (en) | 2018-12-07 | 2018-12-07 | Reinforced structure and composite material template reinforcing system |
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| CN109441105A CN109441105A (en) | 2019-03-08 |
| CN109441105B true CN109441105B (en) | 2023-12-15 |
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| JP2014001614A (en) * | 2012-06-18 | 2014-01-09 | Kotoku Tonaki | Form corner fastening metal fitting |
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| Publication number | Publication date |
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| CN109441105A (en) | 2019-03-08 |
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