CN209868858U - Whole bamboo crack-free unfolded bamboo flat plate composite rectangular beam - Google Patents
Whole bamboo crack-free unfolded bamboo flat plate composite rectangular beam Download PDFInfo
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- CN209868858U CN209868858U CN201920409749.XU CN201920409749U CN209868858U CN 209868858 U CN209868858 U CN 209868858U CN 201920409749 U CN201920409749 U CN 201920409749U CN 209868858 U CN209868858 U CN 209868858U
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Abstract
A whole bamboo crack-free unfolded bamboo flat plate composite rectangular beam comprises vertical plates on two sides, an upper panel, a lower panel, supporting wood base plates on two ends and supporting wood blocks, wherein the two ends of the vertical plates on the two sides are respectively provided with one supporting wood base plate, and a row of supporting wood blocks are arranged in the middle of the supporting wood base plates to form a ladder-shaped structural member; the two upper and lower panels are respectively arranged on the upper and lower surfaces consisting of vertical plates at two sides, two supporting wood base plates and corresponding supporting wood blocks to form a box-shaped structure, the whole bamboo crack-free unfolded bamboo flat plate is unfolded by moso bamboos, and the width of the whole bamboo crack-free unfolded bamboo flat plate is as follows: 250-400 mm, length: 1500-2600mm, thickness is: 7-10 mm. The rectangular beam upper and lower panels and the two side panels are in an external structure formed by gluing three or five layers of whole bamboo crack-free unfolded bamboo flat plates, and support wood blocks are arranged in the external structure.
Description
Technical Field
The utility model relates to a complete bamboo does not have crackle and expandes the supporting building structure field of bamboo flat board, especially relates to a complete bamboo does not have crackle and expandes compound rectangular beam of bamboo flat board.
Background
China is the world mainly producing bamboo, and the area of the bamboo forest is about 400 kilohm2It accounts for more than 90% of the world's moso bamboo yield. The area of the bamboo forest in China is about 0.5 percent of the area of the national soil, about 2.9 percent of the area of the forest in China, and about five hundred million moso bamboos can be cut every year, which is equivalent to 1000 ten thousand meters3The above wood. The bamboo forest resources in China are mainly distributed in 14 provinces, cities and autonomous regions, hilly and mountainous areas in the south of the yellow river and the Yangtze river. As long as scientific management is carried out, the resources are inexhaustible important biological resources.
The moso bamboo is an important forest resource which is fast growing, high in yield, high in quality and easy to update and recover. It has short growth period and excellent physical and mechanical performance. However, compared with wood, the characteristics of small diameter, thin and hollow wall and large sharpening degree of the bamboo wood bring many problems and difficulties for processing and utilizing the bamboo wood. The main problems and difficulties are the following:
1. most of the wood processing equipment and technology can not be directly applied in the bamboo processing, so the technical level of the bamboo processing industry is far behind the wood processing industry.
2. Due to the special structure of the bamboo wood, most products processed by the bamboo wood can only realize mechanical production, the individual working procedures or products are difficult to get rid of manual labor, and more difficulties in realizing continuity and automation exist, so the labor production efficiency of the bamboo wood processing industry is low.
3. The bamboo green on the outer surface and the bamboo yellow on the inner surface of the bamboo are not wetted by the adhesive, the material properties of the bamboo in the middle layer are greatly different, and the material which can be really used in the processing of the bamboo is the middle part, so the utilization rate of the bamboo is low, and the utilization rate is mostly between 20% and 50% according to different products.
4. Bamboo is difficult to be processed into large-size plates or square timber for utilization like wood through simple processing; the bamboo can only be processed into bamboo chips with the width of 20-30mm and the thickness of 5-8mm by sawing, cutting or planing, and is difficult to be directly utilized.
For the four reasons, the products made by simply sawing, cutting or planing the bamboo materials are expected to replace wood materials and surpass wood materials in a wide range of fields, and the success is difficult to achieve in the aspects of performance, economy and the like, so that the main way of selecting and searching the industrial utilization of the bamboo materials becomes the main focus and breakthrough of developing the bamboo material processing industry.
In recent years, people turn their attention to the realization of crack-free unfolding of whole bamboos, and if moso bamboos can be unfolded into crack-free bamboo slabs, crack-free unfolded bamboo slabs superior to high-quality woods can be obtained, and rectangular beams are beams with rectangular cross sections, and most of beams in building engineering are rectangular beams which are widely applied, and if crack-free unfolded bamboo slabs are used in the design of the rectangular beams, various performances of the beams can be greatly improved.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a composite rectangular beam of a whole bamboo crack-free expanded bamboo flat plate and a processing technology, wherein an upper panel, a lower panel and a two side panels of the rectangular beam are formed by gluing three layers or five layers of whole bamboo crack-free expanded bamboo flat plates to form an external structure, and support wood blocks are arranged in the external structure; the two upper and lower panels are respectively arranged on the upper and lower surfaces consisting of vertical plates at two sides, two supporting wood base plates and corresponding supporting wood blocks to form a box-shaped structure, the whole bamboo crack-free unfolded bamboo flat plate is unfolded by moso bamboos, and the width of the whole bamboo crack-free unfolded bamboo flat plate is as follows: 250-400 mm, length: 1500-2600mm, thickness is: 7-10 mm.
The utility model discloses the further improvement of rectangular beam, to the compound rectangular beam of length between 1500-cake 2600mm, the bamboo tube length before whole bamboo flawless expansion bamboo flat plate expandes is according to compound rectangular beam specification length intercepting, make its whole bamboo flawless expansion bamboo flat plate's length just equal to compound rectangular beam's length, the width of its both sides riser is according to 108mm respectively, 152mm, 160mm, 210mm, 250 mm's specification processing, the width of its upper and lower panel is according to 100mm respectively, 120mm, 150mm, 200mm, 250 mm's specification processing, its thickness is according to 7mm respectively, 8mm, 9mm, 10 mm's specification processing, the actual production process is when the length of compound rectangular beam between 1500-cake 2600mm, can directly carry out the intercepting and process according to required thickness can.
The utility model discloses the further improvement of rectangular beam, when both sides riser and upper and lower panel are formed by three whole bamboo crackless expansion bamboo flat plate complex, the both sides riser includes both sides bamboo flat plate I and both sides bamboo flat plate II, upper and lower panel includes upper and lower bamboo flat plate I and upper and lower bamboo flat plate II, and both sides bamboo flat plate I arranges in two-layer from top to bottom bamboo flat plate I, and both sides bamboo flat plate II is the intermediate level with upper and lower bamboo flat plate II, when both sides riser and upper and lower panel are formed by five whole bamboo crackless expansion bamboo flat plate complexes, the both sides riser includes both sides bamboo flat plate I and both sides bamboo flat plate II, upper and lower panel includes upper and lower bamboo flat plate I and upper and lower bamboo flat plate II, and both sides bamboo flat plate I and upper and lower bamboo flat plate I arrange 1, 3, 5 layers in, and both sides bamboo flat plate II and upper and lower bamboo flat plate II are 2, 4 layers, and this application both sides riser and upper and lower panel also can be formed by five whole bamboo crackless expansion When they are combined.
The utility model discloses the further improvement of rectangular beam, when whole bamboo flawless development bamboo dull and stereotyped compound rectangular beam length exceeded 2600mm, both sides bamboo dull and stereotyped I, both sides bamboo dull and stereotyped II, upper and lower bamboo dull and stereotyped I and upper and lower bamboo dull and stereotyped II all need indicate to connect, because bamboo length is limited to be gone out the flawless development bamboo dull and stereotyped compound rectangular beam length of bamboo and to exceed 2600mm and need indicate to connect.
The rectangular beam of the utility model is further improved, before the assembly of the ladder-shaped structural member and the upper and lower panels is pressed and glued, the two surfaces of the bamboo flat plate II and the upper and lower bamboo flat plates II in the ladder-shaped structural member are glued; the contact surfaces of the two supporting wood base plates and the corresponding supporting wood blocks and the vertical plates on the two sides are glued, and the ladder-shaped structural member and the upper and lower panels are generally fixed in a gluing mode before the assembly is pressed and glued.
The rectangular beam of the utility model is further improved, the finger joint positions of the two side bamboo flat plates I and the two side bamboo flat plates II, the upper and lower bamboo flat plates I and the upper and lower bamboo flat plates II are staggered; if the length of the composite rectangular beam is in the range of 4000-; if the length of the composite rectangular beam is in the range of 2600-.
The rectangular beam of the utility model is further improved, and the number of the supporting wood blocks arranged between the vertical plates at the two sides is 4-9 according to the different lengths of the composite rectangular beam; the thickness of the supporting wood blocks is 60mm, 4-9 supporting wood blocks are generally adopted in actual production, and the thickness of the supporting wood blocks is 60 mm.
The utility model discloses whole bamboo does not have crackle and expandes processing technology of dull and stereotyped compound rectangular beam of bamboo, concrete step is as follows:
1) 3-5 layers of crack-free whole bamboo expansion bamboo flat plates on the left side and the right side, two support wood base plates and a row of support wood blocks are glued, assembled and then pressed and thermally glued to form a ladder-shaped structural member;
2) manufacturing upper and lower panels, wherein the upper and lower panels are respectively formed by 3-5 layers of crack-free whole bamboo spread bamboo flat plates, gluing, assembling and pressurizing and hot gluing;
3) and gluing the upper surface and the lower surface of the glued ladder-shaped structural member, respectively assembling the glued ladder-shaped structural member with the upper panel and the lower panel, stacking and pressurizing the glued ladder-shaped structural member in a roadway, and performing cold gluing molding to obtain the required bamboo crack-free unfolded bamboo flat plate composite rectangular beam.
The beneficial effect of this application is as follows:
1) the upper panel, the lower panel and the two side panels of the rectangular beam are of external structures formed by gluing a plurality of layers of whole bamboo crack-free unfolded bamboo flat plates, supporting wood blocks are arranged in the external structures, and the whole bamboo crack-free unfolded bamboo flat plate composite rectangular beam is formed through the design;
2) the upper panel, the lower panel and the two side panels are both formed by whole bamboo crack-free unfolded bamboo flat plates, wood is used as a supporting wood block inside, the purposes of replacing wood with bamboo and saving wood are achieved, structural materials such as laminated veneer lumber manufactured by fast-growing artificial forest wood raw materials are used for replacing the existing solid wood for packaging, the purpose of saving wood is achieved, and the requirements of development of circular economy, energy conservation and emission reduction are met;
3) the practical length limit of the whole bamboo crack-free unfolded bamboo flat plate is considered, when the length exceeds 2.5m, the whole bamboo crack-free unfolded bamboo flat plate can be extended in an original finger joint mode, and the strength can be ensured in the extending process;
4) the upper panel, the lower panel and the two side panels are formed by pressing 3-5 whole bamboo crack-free unfolded bamboo flat plates, and can be selected according to strength requirements.
5) The composite rectangular beam can be used for frame structures at the bottom of a large electromechanical product packing box and structural beams in house buildings.
Drawings
FIG. 1 is an end view of a composite rectangular beam;
FIG. 2 is a view of a composite rectangular beam in the longitudinal direction;
FIG. 3 is a view of the ladder-shaped structural member in its longitudinal direction;
FIG. 4 shows the finger joint positions of the two side bamboo slabs I and the upper and lower bamboo slabs I when the length of the composite rectangular beam is in the range of 4000-;
FIG. 5 shows the finger joint positions of the two side bamboo slabs II and the upper and lower bamboo slabs II when the length of the composite rectangular beam is in the range of 4000-;
FIG. 6 shows the finger joint positions of the two side bamboo plates I and the upper and lower bamboo plates I when the length of the composite rectangular beam is in the range of 2600-;
FIG. 7 shows the finger joint positions of the two side bamboo plates II and the upper and lower bamboo plates II when the length of the composite rectangular beam is in the range of 2600-;
fig. 8 is a schematic diagram of the assembly of the glued ladder-shaped structural member and the upper and lower panels (2) after glue is applied to the upper and lower surfaces thereof, which are placed in a roadway for stacking, pressing and cold gluing.
Description of the drawings:
1. vertical plates on two sides; 2. upper and lower panels; 3. two ends of the support are provided with wood base plates; 4. and a support block; 1-1, two side bamboo flat plates I; 1-2, two side bamboo flat plates II; 2-1, upper and lower bamboo flat plates I; 2-2, an upper bamboo flat plate and a lower bamboo flat plate II.
Detailed Description
The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
the utility model provides a compound rectangular beam of whole bamboo flawless expansion bamboo flat board, panel and both sides panel are expanded the dull and stereotyped veneer of bamboo by three-layer or five-layer whole bamboo flawless and are formed the exterior structure about this rectangular beam, have the support billet in, and it has, and rigidity is good, intensity is high, whole low price, characteristics such as the material is convenient for retrieve.
As an embodiment of the utility model, the utility model provides a whole bamboo crack-free expanded bamboo flat plate composite rectangular beam as shown in fig. 1-3, which comprises two side vertical plates 1, an upper panel and a lower panel 2, two end support wood base plates 3 and support wood blocks 4, wherein two ends of the two side vertical plates 1 are respectively provided with one support wood base plate 3, and a row of support wood blocks 4 are arranged in the middle of the two side vertical plates 1 to form a ladder-shaped structural member; two upper and lower panels 2 are respectively arranged on the upper and lower surfaces consisting of vertical plates 1 at two sides, two supporting wood base plates 3 and corresponding supporting wood blocks 4 to form a box-shaped structure, the whole bamboo crack-free unfolded bamboo flat plate is formed by unfolding moso bamboos, and the width of the whole bamboo crack-free unfolded bamboo flat plate is as follows: 250-400 mm, length: 1500-2600mm, thickness is: 7-10 mm.
The utility model discloses to the compound rectangular beam of length between 1500-charge 2600mm, the bamboo tube length before whole bamboo flawless expansion bamboo flat plate expandes is according to compound rectangular beam specification length intercepting, make its whole bamboo flawless expansion bamboo flat plate's length just equal to compound rectangular beam's length, the width of its both sides riser 1 is processed according to 108mm, 152mm, 160mm, 210mm, 250 mm's specification respectively, the width of its upper and lower panel 2 is processed according to 100mm, 120mm, 150mm, 200mm, 250 mm's specification respectively, its thickness is processed according to 7mm, 8mm, 9mm, 10 mm's specification respectively, the actual production process is when the length of compound rectangular beam between 1500-charge 2600mm, can directly carry out intercepting and process according to required thickness can, wherein the size of rectangular beam cross-section size and length and relevant structure spare commonly used is as following table;
the utility model discloses when both sides riser 1 and upper and lower panel 2 are formed by three whole bamboo crackles expansion bamboo flat plate complex, both sides riser 1 includes both sides bamboo flat plate I and both sides bamboo flat plate II, upper and lower panel 2 includes upper and lower bamboo flat plate I and upper and lower bamboo flat plate II, and both sides bamboo flat plate I arranges in with upper and lower bamboo flat plate I inside and outside two-layerly, and both sides bamboo flat plate II is the intermediate level with upper and lower bamboo flat plate II. When both sides riser 1 and upper and lower panel 2 are formed by five whole bamboo crackless expansion bamboo flat plate complex, both sides riser 1 includes both sides bamboo flat plate I and both sides bamboo flat plate II, upper and lower panel 2 includes upper and lower bamboo flat plate I and upper and lower bamboo flat plate II, and both sides bamboo flat plate I and upper and lower bamboo flat plate I arrange in 1, 3, 5 layers, and both sides bamboo flat plate II and upper and lower bamboo flat plate II are 2, 4 layers, and this application both sides riser and upper and lower panel can also be formed by five whole bamboo crackless expansion bamboo flat plate complex when forming by three whole bamboo crackless expansion bamboo flat plate complex.
The utility model discloses when whole bamboo flawless development bamboo dull and stereotyped compound rectangular beam length exceeded 2600mm, both sides bamboo dull and stereotyped I, both sides bamboo dull and stereotyped II, upper and lower bamboo dull and stereotyped I and upper and lower bamboo dull and stereotyped II all need indicate to connect, because bamboo length has limited whole bamboo flawless development bamboo dull and stereotyped compound rectangular beam length to exceed 2600mm and need indicate to connect.
Before the assembly of the ladder-shaped structural member and the upper and lower panels of the utility model is pressed and glued, as shown in figure 8, the two surfaces of the bamboo flat plate II and the upper and lower bamboo flat plates II in the ladder-shaped structural member are glued; the two supporting wood base plates and the corresponding supporting wood blocks are glued with the contact surfaces of the vertical plates on the two sides, the ladder-shaped structural member and the upper and lower panels are generally fixed in a gluing mode before assembly pressurization gluing, and the ladder-shaped structural member and the upper and lower panels are generally fixed in a gluing mode before assembly pressurization gluing.
The finger joint positions of the two side bamboo flat plates I, the two side bamboo flat plates II, the upper and lower bamboo flat plates I and the upper and lower bamboo flat plates II of the utility model are staggered as shown in the picture 4-7; if the length of the composite rectangular beam is in the range of 4000-; if the length of the composite rectangular beam is in the range of 2600-.
The utility model has 4-9 supporting wood blocks arranged between the vertical plates 1 at two sides according to the different lengths of the composite rectangular beam; the thickness of the supporting wood blocks 4 is 60mm, and in actual production, 4-9 supporting wood blocks are generally adopted, and the thickness of the supporting wood blocks is generally 60 mm.
The utility model discloses whole bamboo does not have crackle and expandes processing technology of dull and stereotyped compound rectangular beam of bamboo, concrete step is as follows:
1) 3-5 layers of crack-free whole bamboo expansion bamboo flat plates on the left side and the right side, two support wood base plates and a row of support wood blocks are glued, assembled and then pressed and thermally glued to form a ladder-shaped structural member;
2) manufacturing upper and lower panels, wherein the upper and lower panels are respectively formed by 3-5 layers of crack-free whole bamboo spread bamboo flat plates, gluing, assembling and pressurizing and hot gluing;
3) and gluing the upper surface and the lower surface of the glued ladder-shaped structural member, respectively assembling the glued ladder-shaped structural member with the upper panel and the lower panel, stacking and pressurizing the glued ladder-shaped structural member in a roadway, and performing cold gluing molding to obtain the required bamboo crack-free unfolded bamboo flat plate composite rectangular beam.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, but also to cover any modifications or equivalent changes made in the technical spirit of the present invention, which fall within the scope of the present invention.
Claims (8)
1. The utility model provides a compound rectangular beam of whole bamboo flawless expansion bamboo flat plate, includes both sides riser (1), upper and lower panel (2), both ends support wooden backing plate (3) and support billet (4), its characterized in that: two ends of the vertical plates (1) at two sides are respectively provided with a supporting wood base plate (3), and a row of supporting wood blocks (4) are arranged in the middle of the supporting wood base plates to form a ladder-shaped structural member; two upper and lower panels (2) are respectively arranged on the upper and lower surfaces consisting of vertical plates (1) on two sides, two supporting wood base plates (3) and corresponding supporting wood blocks (4) to form a box-shaped structure, the whole bamboo crack-free unfolded bamboo flat plate is formed by unfolding moso bamboos, and the width of the whole bamboo crack-free unfolded bamboo flat plate is as follows: 250-400 mm, length: 1500-2600mm, thickness is: 7-10 mm.
2. The whole bamboo crack-free unfolded bamboo flat plate composite rectangular beam as claimed in claim 1, characterized in that: for the composite rectangular beam with the length of 1500-2600mm, the length of the bamboo tube before the whole bamboo crack-free unfolded bamboo flat plate is unfolded is cut according to the specification length of the composite rectangular beam, so that the length of the whole bamboo crack-free unfolded bamboo flat plate is just equal to the length of the composite rectangular beam, the widths of the vertical plates (1) on the two sides are respectively processed according to the specifications of 108mm, 152mm, 160mm, 210mm and 250mm, the widths of the upper and lower panels (2) are respectively processed according to the specifications of 100mm, 120mm, 150mm, 200mm and 250mm, and the thicknesses of the upper and lower panels are respectively processed according to the specifications of 7mm, 8mm, 9mm and 10 mm.
3. The whole bamboo crack-free unfolded bamboo flat plate composite rectangular beam as claimed in claim 1, characterized in that: when the two side vertical plates (1) and the upper and lower panels (2) are formed by compounding three whole bamboo crack-free unfolded bamboo flat plates, the two side vertical plates (1) comprise two side bamboo flat plates I (1-1) and two side bamboo flat plates II (1-2), the upper and lower panels (2) comprise an upper and lower bamboo flat plate I (2-1) and an upper and lower bamboo flat plate II (2-2), the two side bamboo flat plates I (1-1) and the upper and lower bamboo flat plates I (2-1) are arranged in an inner layer and an outer layer, and the two side bamboo flat plates II (1-2) and the upper and lower bamboo flat plates II (2-2) are interlayers.
4. The whole bamboo crack-free unfolded bamboo flat plate composite rectangular beam as claimed in claim 1, characterized in that: when the two side vertical plates (1) and the upper and lower panels (2) are formed by compounding five whole bamboo crack-free unfolded bamboo flat plates, the two side vertical plates (1) comprise two side bamboo flat plates I (1-1) and two side bamboo flat plates II (1-2), the upper and lower panels (2) comprise an upper and lower bamboo flat plate I (2-1) and an upper and lower bamboo flat plate II (2-2), the two side bamboo flat plates I (1-1) and the upper and lower bamboo flat plates I (2-1) are arranged in 1 layer, 3 layer and 5 layer, and the two side bamboo flat plates II (1-2) and the upper and lower bamboo flat plates II (2-2) are 2 layer and 4 layer.
5. The whole bamboo crack-free spread bamboo flat plate composite rectangular beam as claimed in claim 3 or 4, wherein: when the length of the whole crack-free unfolded bamboo flat plate composite rectangular beam exceeds 2600mm, the two side bamboo flat plates I (1-1), the two side bamboo flat plates II (1-2), the upper and lower bamboo flat plates I (2-1) and the upper and lower bamboo flat plates II (2-2) are required to be connected by fingers.
6. The whole bamboo crack-free spread bamboo flat plate composite rectangular beam as claimed in claim 3 or 4, wherein: before the ladder-shaped structural member and the upper and lower panels (2) are assembled and pressed for gluing, two surfaces of a bamboo flat plate II (1-2) and the upper and lower bamboo flat plates II (2-2) in the ladder-shaped structural member are glued; the contact surfaces of the two supporting wooden base plates (3) and the corresponding supporting wooden blocks (4) and the vertical plates (1) at the two sides are coated with glue.
7. The whole bamboo crack-free unfolded bamboo flat plate composite rectangular beam as claimed in claim 5, wherein: the finger joint positions of the two side bamboo flat plates I (1-1), the two side bamboo flat plates II (1-2), the upper and lower bamboo flat plates I (2-1) and the upper and lower bamboo flat plates II (2-2) are staggered; if the length of the composite rectangular beam is in the range of 4000-; if the length of the composite rectangular beam is in the range of 2600-.
8. The whole bamboo crack-free unfolded bamboo flat plate composite rectangular beam as claimed in claim 1, characterized in that: according to the length difference of the composite rectangular beam, 4-9 supporting wood blocks (4) are arranged between the vertical plates (1) on the two sides; the thickness of the supporting wood blocks (4) is 60 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920409749.XU CN209868858U (en) | 2019-03-28 | 2019-03-28 | Whole bamboo crack-free unfolded bamboo flat plate composite rectangular beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920409749.XU CN209868858U (en) | 2019-03-28 | 2019-03-28 | Whole bamboo crack-free unfolded bamboo flat plate composite rectangular beam |
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| CN209868858U true CN209868858U (en) | 2019-12-31 |
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| CN201920409749.XU Expired - Fee Related CN209868858U (en) | 2019-03-28 | 2019-03-28 | Whole bamboo crack-free unfolded bamboo flat plate composite rectangular beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109877919A (en) * | 2019-03-28 | 2019-06-14 | 南京林业大学 | A kind of integral bamboo flawless spreading bamboo plate compounding rectangular beam and processing technology |
-
2019
- 2019-03-28 CN CN201920409749.XU patent/CN209868858U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109877919A (en) * | 2019-03-28 | 2019-06-14 | 南京林业大学 | A kind of integral bamboo flawless spreading bamboo plate compounding rectangular beam and processing technology |
| CN109877919B (en) * | 2019-03-28 | 2023-09-26 | 南京林业大学 | Whole bamboo crack-free unfolding bamboo flat plate composite rectangular beam and processing technology |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chuzhou Monte tech Environmental Protection Technology Co.,Ltd. Assignor: NANJING FORESTRY University Contract record no.: X2020320000112 Denomination of utility model: A kind of composite rectangular beam of bamboo flat plate without crack Granted publication date: 20191231 License type: Common License Record date: 20201104 Assignee: Nanjing Monte tech Environmental Protection Technology Co.,Ltd. Assignor: NANJING FORESTRY University Contract record no.: X2020320000111 Denomination of utility model: A kind of composite rectangular beam of bamboo flat plate without crack Granted publication date: 20191231 License type: Common License Record date: 20201105 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 Termination date: 20210328 |