CN103195181A - Insulation board internally provided with wood joist and connecting piece - Google Patents
Insulation board internally provided with wood joist and connecting piece Download PDFInfo
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- CN103195181A CN103195181A CN2013100132468A CN201310013246A CN103195181A CN 103195181 A CN103195181 A CN 103195181A CN 2013100132468 A CN2013100132468 A CN 2013100132468A CN 201310013246 A CN201310013246 A CN 201310013246A CN 103195181 A CN103195181 A CN 103195181A
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Abstract
The invention provides insulation boards internally provided with wood joists and connecting pieces, relates to the field of construction materials, and aims to solve the difficult problems that the insulation wall cannot hang heavy objects, the insulation boards are noncontinuous, the insulation effect is poor and condensed water is generated. The insulation boards internally provided with the wood joists comprise insulation board bodies and internal wood joists, and can be divided into a brief type and a reinforcing type according to the number of the wood joists in the insulation boards; each brief-type insulation board is provided with one wood joist of which the cross section is trapezoidal in the surface, and each reinforcing insulation board is internally provided with more wood joists which can be divided into a mutually-vertical transverse group and a longitudinal group; and nails and connecting pieces provided by the invention are used to connect the wood joists between adjacent insulation boards, so as to enable the insulation boards to be mutually connected into a firm whole body, then a layer of plastic membrane is bonded to and hung on the surface of each insulation board, and then decorative boards are fixed to the wood joists. The insulation boards internally provided with the wood joists and the connecting pieces have the advantages that nails can be used for hanging the heavy objects on the wood joists inside the insulation boards, and the insulation boards have good insulation effect and no condensed water, are simple, convenient and quick to construct, and besides, can replace a non-bearing wall or can be used for building a lightweight house.
Description
Technical field
The present invention relates to constructional materials, warming plate and the connector of rough ground arranged in specifically being.
Background technology
Building exterior wall heat preserving is to stick with glue and use the nail anchoring with the fixed form of warming plate at present, also will smear topping on insulation layer, requires the constructor that higher operative skill is arranged, and operation is loaded down with trivial details, and is long in time limit, and the surface is easy to crack.Especially when being incubated within the walls, can not nail on the indoor wall, can't hang weights such as picture frame, board, flat panel TV.
For solving the difficult problem that insulated wall can not be hung weight, a kind of form of construction work occurring is rough ground on interior wall is fixing, between rough ground, fill up warming plate, then at the fixing decorative panel such as gypsum plank or cement board of rough ground, on the wall as need to hang weight and just can pass gypsum plank with nail and be fixed on the rough ground.This mode requires when insulation layer is thicker with thicker rough ground, and is very uneconomical; And warming plate is discontinuous, and the gap is big and many, and heat insulation effect is poor; Especially the gap between rough ground and warming plate is ventilative, and easier causing produces condensed water at the metope of insulation layer back, causes indoor generation peculiar smell.The masty main difficult problem of exterior wall internal insulation that Here it is.
Summary of the invention
The purpose of this invention is to provide warming plate and connector thereof that rough ground is arranged in a series of, solve the difficult problem that insulated wall can not be hung weight, the gap that solves simultaneously between warming plate and rough ground is big, the difficult problem of heat insulation effect difference and generation condensed water, the more important thing is easy construction, quick, economic, therefore can also further replace non or be used for making light-weight house with this warming plate and connector.
The present invention includes: in the warming plate of rough ground, flat connector and vertical connector three parts are arranged.
The interior warming plate by rough ground that the present invention proposes is made up of the rough ground of insulation plate body and Qi Nei.Rough ground is positioned at 0 to 9 millimeter on warming plate surface, has at least three insulation plate plate bodys to coat.
The warming plate that rough ground arranged in described according to structure different with purposes divide dissimilar.
What of rough ground in the warming plate can be divided into enhanced type and simple two classes by.
Rough ground in the enhanced type warming plate is many, be divided into orthogonal two groups of rough grounds anyhow, rough ground shape unanimity in every group, each organizes that rough ground is parallel to each other and towards unanimity in plane separately, the rough ground spacing equates, the batten on both sides is half of rough ground spacing to the distance at warming plate edge in every rough ground.The length of two groups of rough grounds is consistent with the warming plate length and width.For increasing the intensity of rough ground in warming plate, the rough ground intersection can be fixed with nail or cotton rope colligation.Prevent that further rough ground from extracting in warming plate, also can with the cross section of rough ground by square make into trapezoidal, rough ground greatly in warming plate, facet is outside.For making adjacent warming plate junction, installation back smooth, warming plate four limits are provided with flange and the groove of pegging graft mutually between the warming plate identical with another.During construction warming plate is pegged graft mutually, be fixed on the wall again or ceiling gets final product.The advantage of this warming plate is can hang heavier object on it, utilize connector also available it build light-weight house, this light-weight house is more corrosion-resistant than light steel and color plate room, heat insulation effect is better.
It is trapezoidal rough ground that a cross section is arranged in the simple warming plate surface, rough ground greatly in warming plate, facet is outside, with a surface of warming plate in same plane, rough ground is placed along the warming plate length direction, the position is at the center line of warming plate, rough ground length is consistent with warming plate length, preferably selects the length of standard timber, in order to saving timber, flange and groove are established in the warming plate both sides, in order to be parallel to each other grafting between the warming plate identical with another.This warming plate has following advantage when doing house insulation: convenient transportation can be cut into the length that needs in advance before carrying upstairs.Install simply, save time, the saving of labor only needs the flange between warming plate and groove alignment inserted and leans on, and passes rough ground with nail and is pinned on the wall, warming plate can be fixed on the wall, and one slotting one splices smooth and seamless insulation layer.Its advantage is: high insulating effect, it is convenient to construct.Take full advantage of material, the brachycephaly under the saw can connect use, does not influence heat insulation effect, and no discarded object economizes on resources.Seam crossing is smooth, and is seamless, warming plate such as same integral body after fixing, high insulating effect.Especially Tu Chu advantage is that the mode of available manufacturing extruded sheet is produced the warming plate that plate body is the extruded sheet material continuously, boost productivity, reduce cost, and the extruded sheet surface of this mode of occupation need not removed the peel and hacking is handled, and more can give play to isolated steam, the utmost point low water absorption of extruded sheet, the advantage that coefficient of thermal conductivity is low and the insulation life-span is grown.Add that extruded sheet is more excellent than other performance of heat protective material, cost performance is higher, so this warming plate has more competitive advantage.
Whether there is rough ground can be divided into single face rough ground warming plate and two-sided rough ground warming plate two classes by the warming plate two sides.
Single face rough ground warming plate is the warming plate that a face of warming plate has rough ground, can only simultaneously hang weight.Its advantage is easily manufactured, and consumption of wood is few, and cost is low.
Two-sided rough ground warming plate is that the warming plate two sides has rough ground, not only the two sides can both hang weight, more outstanding is a little that its flexural strength is than several times to tens times of single face rough ground insulation plate hights, available it build non or than the ceiling of large span, if be used for doing insulation to the wall of metope injustice, can save leveling layer.
Described flat connector is a kind of connector of inventing for the bonding strength that increases between parallel adjacent warming plate.This connector is used for connecting in the longitudinal direction two rough grounds that the cross section is identical, it is characterized in that one section metal or nonmetal square tube, have more than one hole for nailing and distribute on it, the cross section of square tube inner chamber is the same with the rough ground cross sectional shape that is connected, equal and opposite in direction or slightly bigger is so that the rough ground that is connected inserts from flat connector two ends respectively.Rough ground corresponding in adjacent two warming plates respectively inserts half from flat connector two ends, and several holes for nailing that distribute on the flat connector can be with two firm coupling together of rough ground behind the hole for nailing place ailing.Owing to have several rough grounds firmly to connect with flat connector between adjacent warming plate, so bonding strength therebetween improves greatly.
Described vertical connector is to be the increase a kind of connector that bonding strength between warming plate invents that intersects vertically.Intersect orthogonal rough ground in the warming plate with this connector fixed vertical.The structure of this right-angle connector is that a certain end of one section metal or nonmetal square tube is connected with one section metal or a nonmetallic slices that is converted into an angle of 90 degrees, the cross section of square tube inner chamber is the same with the rough ground cross sectional shape that it is connected, equal and opposite in direction or slightly bigger all leaves hole for nailing on square tube and the thin slice.Method of attachment is that square tube is inserted in the rough ground end that two mutually vertical warming plate medial end portions contact with another plate, and is fixing with nail, prevents from coming off, and thin slice is pinned on the another one rough ground.Owing to have several rough grounds firmly to connect with vertical connector between the warming plate that intersects, so bonding strength therebetween improves greatly.
Can fix warming plate on the wall or ceiling with the rough ground that nail passes in the warming plate during construction; Also can by the nail and connector is fixed to the two ends of rough ground in the warming plate on the wall or the beam column in ceiling or house on; Can also be connected the rough ground between adjacent warming plate with connector with nail, make warming plate be interconnected to firm integral body.Paste the fluid-tight Polypropylence Sheet of extension one deck on the warming plate surface, seam crossing cements with adhesive tape, has so just stoped the infiltration of indoor-outdoor air and steam.With nail decorative panels such as gypsum plank are fixed on the rough ground in the warming plate again.When hanging weight on the wall, available nail directly is fixed on weight on the rough ground in the warming plate, solved the difficult problem that to hang weight on the insulated wall, it is discontinuous also to have solved warming plate simultaneously, the difficult problem of heat insulation effect difference and generation condensed water, not only high insulating effect the more important thing is that easy construction is fast economical, and the ordinary people has seen can oneself constructing behind the video teaching material.
Description of drawings
For illustration purposes, illustrate each embodiment in the accompanying drawings, but unrestricted the present invention.
Fig. 1 is the rough ground of four limits of the embodiment of the invention enhanced type single face rough ground warming plate that do not have emboss pit 0 millimeter schematic diagram in the warming plate surface.
Fig. 2 is the rough ground of four limits of the embodiment of the invention enhanced type single face rough ground warming plate that emboss pit is arranged 0 millimeter schematic diagram in the warming plate surface.
Fig. 3 is the interior interconnective schematic diagram of rough ground of enhanced type rough ground warming plate of the embodiment of the invention.
Fig. 4 be the embodiment of the invention flat connector (its cross section that connects rough ground is square) connection rough ground disassemble schematic diagram.
Fig. 5 is the schematic diagram of flat connector (its cross section that connects rough ground is square) the connection rough ground of the embodiment of the invention.
Fig. 6 be the embodiment of the invention flat connector (its cross section that connects rough ground is trapezoidal) two rough grounds of connection disassemble schematic diagram.
Fig. 7 is the schematic diagram of flat connector (its cross section that connects rough ground is trapezoidal) two rough grounds of connection of the embodiment of the invention.
Fig. 8 be the embodiment of the invention vertical connector (its cross section that connects rough ground is square) two orthogonal rough grounds of connection disassemble schematic diagram.
Fig. 9 is the schematic diagram of vertical connector (its cross section that connects rough ground is square) two orthogonal rough grounds of connection of the embodiment of the invention.
Figure 10 be the embodiment of the invention vertical connector (its cross section that connects rough ground is trapezoidal) two orthogonal rough grounds of connection disassemble schematic diagram.
Figure 11 is the schematic diagram of vertical connector (its cross section that connects rough ground is trapezoidal) two orthogonal rough grounds of connection of the embodiment of the invention.
Figure 12 is half section schematic diagram of the simple warming plate of the embodiment of the invention.
Figure 13 is half section schematic diagram that there is the rough ground warming plate on the simple two sides of the embodiment of the invention.
Figure 14 is half section schematic diagram that respectively there are two rough ground warming plates on the simple two sides of the embodiment of the invention.
The specific embodiment
Following with reference to accompanying drawing, the present invention is described in detail by preferred embodiment.
Fig. 1 and Fig. 2 are the rough ground 2 of enhanced type single face rough ground warming plate of the embodiment of the invention 0 millimeter schematic diagrames in the warming plate surface, each rough ground 2 has at least three face insulation plate bodys 1 to coat, there are flange 11 grooves 12, not having among Fig. 1 in warming plate four limits among Fig. 2.
Rough ground in the enhanced type warming plate is many, be divided into orthogonal two groups of rough grounds anyhow, rough ground shape unanimity in every group, the cross section of two groups of rough grounds can be different, each organizes that rough ground is parallel to each other and towards unanimity in plane separately, the rough ground spacing equates, the batten on both sides is half of rough ground spacing to the distance at warming plate edge in every rough ground.The length of two groups of rough grounds is consistent with the warming plate length and width.Warming plate four limits are provided with flange 11 and the groove 12 of pegging graft mutually between can the warming plate identical with another, after warming plate is pegged graft mutually, can guarantee the sealing of seam, can guarantee the smooth of seam crossing again.
Consider the smooth of decorative panel seam crossing, as at the fixing decorative panel such as gypsum plank or cement board of warming plate, need the length and width size of warming plate to equate with the length and width size of decorative panel, or integral multiple, can guarantee when the large tracts of land assembly unit that like this seam of decorative panel all drops on the same position of every warming plate, and this position can be taken at the place that warming plate has rough ground, with nail the seam crossing of decorative panel is fixed to and guarantees the smooth and firm of decorative panel seam crossing on the rough ground, otherwise can not guarantee the smooth and firm of each seam crossing.It now is example with the gypsum plank, the gypsum plank width that the warp that sell the market is commonly used is 120 centimetres, length has 240 centimetres and 300 centimetres, considers transportation and the convenience of installing, and warming plate can not be too big or too little, too big transportation inconvenience, too little seam is installed inconvenience too much, and the especially more bad processing of transverse joint is so preferably the length and width of warming plate are consistent with the length and width of gypsum plank, width selects 120 centimetres, and length is selected 240 centimetres or 300 centimetres.Among Fig. 1 and Fig. 2, warming plate length is 240 centimetres, 120 centimetres of width, 30 centimetres of rough ground spacings.Because above structure, so this warming plate can not be used the extruding machine manufacturing, therefore being incubated plate body 1 can be extruded sheet any heat insulating material in addition.
Fig. 3 is the interior rough ground 2 interconnective schematic diagrames of enhanced type rough ground warming plate of the embodiment of the invention.Rough ground in the enhanced type warming plate is many, is divided into orthogonal two groups of rough grounds anyhow, and two groups of rough grounds laminate in aggregatesly with following closely, and also can connect in aggregates with dovetail groove.Shown in Fig. 3 is exactly situation with dovetail groove, has dovetail groove below that group rough ground 2 of upper strata, and cross section and dovetail groove of that group rough ground 2 of lower floor are complementary, and rough ground is folded mutually to be located nail of no use and fix.Each is organized rough ground and is being parallel to each other and the shape unanimity in the plane separately, and the rough ground spacing equates, the rough ground on both sides is half of rough ground spacing to the distance at warming plate edge at least one group of rough ground.The length of two groups of rough grounds is consistent with the warming plate length and width.
For increasing the intensity of rough ground in warming plate, the rough ground place of overlapping can fix with wire or cotton rope colligation.Prevent that further rough ground from extracting in warming plate, also can with near the cross section of that group rough ground on surface by square make into trapezoidal, rough ground greatly in warming plate, facet is outside.Two groups anyhow in the orthogonal rough ground, that group rough ground near the surface need fix decorative panel by ailing on it, can not be too narrow, will be pinned on the rough ground otherwise fixedly be not easy capturing position during decorative panel, just can be narrower away from that group rough ground of surface, in order to saving timber.
Fig. 4 be the embodiment of the invention flat connector 5 (its cross section that connects rough ground is square) connection rough ground 2 disassemble schematic diagram.
Fig. 5 is the schematic diagram of flat connector 5 (its cross section that connects rough ground is square) the connection rough ground 2 of the embodiment of the invention.
Fig. 6 be the embodiment of the invention flat connector 5 (its cross section that connects rough ground is trapezoidal) two rough grounds 2 of connection disassemble schematic diagram.
Fig. 7 is the schematic diagram of flat connector 5 (its cross section that connects rough ground is trapezoidal) two rough grounds 2 of connection of the embodiment of the invention.
The method of attachment of flat connector be two rough grounds 2 respectively insert from two flat connector 5 half, two holes for nailing 7 that distribute on the flat connector, hole for nailing 7 place's ailings can be with 2 firm the coupling together of two rough grounds.Because two rough grounds 2 insert connector 5, add the fixing of nail, and two rough grounds 2 are linked together, its bending resistance and compressive strength can reach the intensity of a whole rough ground.
In have the warming plate of rough ground to splice mutually with flat connector.Method of attachment is to have rough ground corresponding in the warming plate of wooden frame firmly to connect with flat connector with interior.Because rough ground 2 insulation plate bodys 1 coat, cause rough ground 2 to be not easy to insert in the flat connector 5, so can be with the following method in advance the insulation plate body of rough ground periphery be separated: an end of flat connector 5 is aimed at rough ground 2 ends that will connect, knock the other end of flat connector 5 with flitch, flat connector 5 can separate the insulation plate body 1 of rough ground 2 peripheries, and flat connector 5 also is enclosed within outside the rough ground 2 simultaneously.Owing to each rough ground in the warming plate that rough ground is arranged in adjacent all uses flat connector firmly to connect, so bonding strength therebetween improves greatly.If the warming plate two sides all is provided with rough ground, all use flat connector to link together therebetween, its intensity is near the intensity of an integral slab, and therefore available this mode splices non.
Fig. 8 be the embodiment of the invention vertical connector 6 (its cross section that connects rough ground is square) two orthogonal rough grounds 1 of connection disassemble schematic diagram.
Fig. 9 is the schematic diagram of vertical connector 6 (its cross section that connects rough ground is square) two orthogonal rough grounds 1 of connection of the embodiment of the invention.
Figure 10 be the embodiment of the invention vertical connector 6 (its cross section that connects rough ground is trapezoidal) two orthogonal rough grounds 1 of connection disassemble schematic diagram.
Figure 11 is the schematic diagram of vertical connector 6 (its cross section that connects rough ground is trapezoidal) two orthogonal rough grounds 1 of connection of the embodiment of the invention.
Fix two orthogonal rough grounds with right-angle connector.Two orthogonal rough grounds can contact, and also can not contact, and the method for attachment that does not contact connection is slightly different, and namely the rough ground 2 of the horizontal direction among Fig. 9 or Figure 11 need not be inserted to the square tube bottom of vertical connector 6.
Two have the warming plate of rough ground firmly to connect with vertical connector in orthogonal.Method of attachment when two orthogonal rough grounds are in contact with one another is that the square tube of vertical connector 6 is inserted in the rough ground end that two mutually vertical warming plate medial end portions contact with another warming plate, passing hole for nailing 7 with nail fixes, prevent from coming off, thin slice is pinned on the relative rough ground of another one.If thin slice and another one rough ground have insulation layer to intercept it can not be in contact with one another, should will intercept insulation 1 excision at position in advance, make vertical connector 6 thin slice 8 can with warming plate in rough ground 2 fixing with nail again after fitting.Each relative rough ground couples together with connector between warming plate, two orthogonal warming plates firmly can be connected.
Aforesaid method of attachment has been arranged, be used in again and shift to an earlier date the warming plate that wooden frame is arranged in prefabricated in the factory, just can very easily construct the little light-weight house main body of span with flat connector and vertical connector.Build the light-weight house of large span as need, just must build crossbeam and the framework that prevents the ceiling downwarp in advance, in have the warming plate of wooden frame to be fixed on crossbeam and the framework, fixing method is with following closely or screw is fixed on crossbeam and the framework after rough ground in the warming plate of rough ground is arranged in passing again.Inside and outside the light-weight house main body, paste and hang up fluid-tight plastic foil, nail on decorative panel and can build up insulation and moistureproof light-weight house, need determine the door and window mouth in advance and set up heat-preservation door and window with wood saw certainly.The fixing method of decorative panel is with on nail or the screw fixings rough ground in the warming plate.
Just simpler as in wall and ceiling house are arranged, doing insulation, need not any connector, directly with following closely the rough ground that passes in the warming plate, warming plate is fixed to wall and ceiling, 30 to 50 centimetres of distances between nail and nail are pasted thereon and are hung one deck plastic foil, nail on decorative panel and get final product.
If warming plate is not to be used for building non or light-weight house, just be used for doing wall thermal insulating, just can use the simple warming plate.
Figure 12 is half section schematic diagram of the simple warming plate of the embodiment of the invention.In the insulation plate body 1 cross section being arranged is trapezoidal rough ground 2, rough ground 2 greatly in warming plate, facet is outside, with a surface of warming plate in same plane, rough ground 2 is placed along the warming plate length direction, the position is at the center line of warming plate, rough ground length is consistent with warming plate length, it is 400 centimetres, the width of warming plate is 40 centimetres, flange 11 and groove 12 are established in order to be parallel to each other grafting between the warming plate identical with another in the warming plate both sides, and the warming plate monnolithic case resembles the wooden floor chip of an amplification.The convenient transportation when warming plate of this embodiment is incubated in doing the house can be cut into the length that needs in advance before carrying upstairs, the brachycephaly under the saw can use in the continued access, do not influence heat insulation effect, install simply, save time, the saving of labor, only need the flange between warming plate and groove inserted and lean on, pass rough ground every 30 to 60 centimetres with nail and be fixed on the wall, warming plate can be fixed on the wall, seam crossing is smooth, seamless, warming plate such as same integral body after fixing, high insulating effect.Because plate body is made with the extruded sheet material, and the extruded sheet of this mode of occupation need not to use bonding process, so the extruded sheet surface need not removed the peel with hacking and be handled, isolated steam and the utmost point low water absorption advantage of extruded sheet more can have been given play to, can save when therefore constructing and paste the operation of hanging plastic foil, only need to seal with plastic adhesive tape seam and the hole for nailing of warming plate, because the extruded sheet surface does not have peeling and hacking, so the sticking ground of plastic adhesive tape is more firm.
This simple warming plate can also be modified into the structure that there is rough ground on the warming plate two sides, as shown in figure 13, because there is rough ground 2 on the warming plate two sides, add extruded sheet than polyphenyl plate intensity height, this embodiment flexural strength is higher, and being used for doing the ceiling span can be bigger.If have bigger extruded sheet production equipment just can produce the ejecting plate face wideer, in the warming plate of more rough grounds is arranged.Figure 14 is half section schematic diagram that respectively there are two rough ground warming plates on the simple two sides of the embodiment of the invention, and this warming plate is when large span is used, and lateral stability is higher, and plate body is more not yielding.
The above specific embodiment only is the preferred embodiments of the present invention, and by example rather than restriction, in the case of without departing from the spirit and scope of protection of the present invention, any modification and the replacement made all should be included in protection scope of the present invention thus.
Claims (10)
1. the warming plate of rough ground is arranged in one kind, and this warming plate is made up of the rough ground of insulation plate body and Qi Nei, it is characterized in that described rough ground is positioned at 0 to 9 millimeter on warming plate surface.
2. warming plate as claimed in claim 1, the cross section that it is characterized in that described rough ground by square further be arranged to trapezoidal, rough ground greatly in warming plate, facet is outside.
3. warming plate as claimed in claim 1, it is characterized in that described rough ground is divided into orthogonal two groups of rough grounds anyhow, each organize that rough ground is parallel to each other in each plane and the shape unanimity towards identical, the rough ground spacing equates, the batten on both sides is half of rough ground spacing to the distance at warming plate edge in every group of rough ground.The length of two groups of rough grounds is consistent with the warming plate length and width.
4. warming plate as claimed in claim 3, it is characterized in that described two groups anyhow orthogonal rough ground mutually folded place further with following closely or the cotton rope colligation is fixed.
5. warming plate as claimed in claim 3, it is characterized in that described two groups anyhow orthogonal rough ground further connect in aggregates with dovetail groove in folded place mutually.
6. the warming plate that rough ground is arranged in a kind, it is characterized in that having in it cross section is trapezoidal rough ground, rough ground greatly in warming plate, facet outwards and with a surface of warming plate in same plane, rough ground is placed along the warming plate length direction, and rough ground length is consistent with warming plate length.
7. as claim 1 to 6 any one or several described warming plates, it is characterized in that in the warming plate two sides, all being provided with rough ground.
8. as claim 1 to 7 any one or several described warming plates, it is characterized in that described warming plate four limits have at least one group of opposite side to be provided with flange and the groove of pegging graft mutually between the warming plate identical with another.
9. flat connector, be used for connecting in the longitudinal direction two rough grounds that the cross section is identical, it is characterized in that one section metal or nonmetal square tube, have more than 1 hole for nailing and distribute on it, the connected rough ground cross sectional shape in the cross section of square tube inner chamber is the same, equal and opposite in direction or slightly bigger is so that the rough ground that is connected inserts from flat connector two ends respectively.
10. a vertical connector is used for connecting two orthogonal rough grounds, and it is characterized in that has folding thin slice at an angle of 90 at a certain end of flat connector as claimed in claim 8, leaves hole for nailing on the thin slice in order to be fixed on the vertical rough ground of another root with nail.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108167286A (en) * | 2018-02-07 | 2018-06-15 | 明珠家具股份有限公司 | L type slot type connection structure |
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