CN211808239U - Recombined bamboo structural material - Google Patents
Recombined bamboo structural material Download PDFInfo
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- CN211808239U CN211808239U CN201922249056.1U CN201922249056U CN211808239U CN 211808239 U CN211808239 U CN 211808239U CN 201922249056 U CN201922249056 U CN 201922249056U CN 211808239 U CN211808239 U CN 211808239U
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Abstract
The utility model belongs to the technical field of the reorganization bamboo article, concretely relates to reorganization bamboo structure material. To the not enough of current reorganization bamboo structural timber size singleness, the utility model discloses a following technical scheme: the utility model provides a reorganization bamboo structural material, reorganization bamboo structural material includes the range upon range of multilayer reorganization bamboo plywood of thickness direction, reorganization bamboo plywood is formed by the concatenation of a plurality of reorganization bamboo slab units, and is adjacent reorganization bamboo slab unit passes through the tenon-and-tenon connection that shape, size correspond, the tenon-and-tenon is for pointing joint finger tenon, oblique tenon or hook joint tenon, and the thickness direction is adjacent the tenon-and-tenon junction of reorganization bamboo plywood staggers. The utility model discloses a beneficial effect of reorganization bamboo structural material is: the standard adjustment of finger joint length, oblique joint or split width can be carried out according to the design or use requirements, the strength is higher, and the column, the beam and the like for large-specification buildings can be formed.
Description
Technical Field
The utility model belongs to the technical field of the reorganization bamboo article, concretely relates to reorganization bamboo structure material.
Background
The recombined bamboo is a new bamboo material formed by reorganizing and strengthening bamboo, and is a plate or a square timber formed by assembling, gluing and pressing bamboo bundles or fibrous bamboo veneers serving as forming units according to the grain. The recombined bamboo has high strength, high hardness, good rigidity, small deformation, strong nail holding force and reproducibility, and is an excellent natural engineering material.
The prior recombined bamboo slabs have small specifications before splicing and can not meet the use requirements of beams, columns and various large-scale structural materials used in buildings. Meanwhile, the existing recombined bamboo structural material has single size and cannot meet the use requirements of diversification, particularly customization of building materials.
In order to meet the requirements of large-specification building materials, a plurality of plate blanks are spliced into a laminate with a larger size, and the plurality of laminates are glued to form an available structural material. However, when the finger joint finger tenon is adopted in the prior recombined bamboo slab, the embedding degree (difference between the tooth bottom width and the tooth top width) is large, the locking force is small, the tooth is easy to disengage, and the continuous finger joint lengthening of the slab is not facilitated.
Disclosure of Invention
The utility model discloses to the not enough of current reorganization bamboo structural wood size singleness, provide a specification, size adjustable reorganization bamboo structural wood to satisfy building structural wood's operation requirement. Further, the extension structure between the recombined bamboo slabs is improved, and continuous and smooth finger joint extension of the slabs is realized.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a reorganization bamboo structural material, reorganization bamboo structural material includes the range upon range of multilayer reorganization bamboo plywood of thickness direction, reorganization bamboo plywood is formed by the concatenation of a plurality of reorganization bamboo slab units, and is adjacent reorganization bamboo slab unit passes through the tenon-and-tenon connection that shape, size correspond, the tenon-and-tenon is for pointing joint finger tenon, oblique tenon or hook joint tenon, and the thickness direction is adjacent the tenon-and-tenon junction of reorganization bamboo plywood staggers.
The utility model discloses a restructural bamboo structural material, restructural bamboo structural material's restructural bamboo plywood is formed by the concatenation of a plurality of restructural bamboo slab units, and restructural bamboo structural material's specification is adjustable, can indicate to connect length, scarf joint and splice specification adjustment such as widen according to design or user demand during production, be convenient for become for large specification stand for building and roof beam etc. the practicality is good; adjacent reorganization bamboo board base unit passes through tongue and groove connection, and the processing is easy and reorganization bamboo board base unit is indirect long to be connect wide comparatively convenient, and intensity is better simultaneously.
As an improvement of the recombined bamboo structural material, the difference between the tooth bottom width and the tooth top width of the finger joint finger tenon is 0.05-1.0 mm. The finger joint finger tenon tooth shape with small embedding degree is adopted, the locking force of the finger joint finger tenon of the plate blank unit is larger, the tooth is not easy to disengage, and convenience is provided for the continuous finger joint lengthening operation of the plate blank.
As an improvement of the recombined bamboo structural material, the difference between the tooth bottom width and the tooth top width of the finger joint finger tenon is 0.05-0.5 mm.
As an improvement of the recombined bamboo structural material, the tooth top width of the finger joint tenon is not less than 2 mm; the tooth depth of the finger joint tenon is not less than 20 mm; the length of the recombined bamboo slab unit is 0.5-3 m.
As an improvement of the recombined bamboo structural material, the tooth top width of the finger joint tenon is 2-5 mm; the depth of the finger joint tenon is 20-50 mm; the length of the recombined bamboo board blank unit is 1.8-2.5 m; the slope of the inclined plane of the finger joint tenon is 1/10-1/20.
As an improvement of the recombined bamboo structural material, the recombined bamboo board blank units are spliced along the length direction and the width direction. The length direction is the fiber direction of bamboo, i.e. the growth direction.
As an improvement of the recombined bamboo structural material, the tenon-tenon joints of the recombined bamboo laminates adjacent in the thickness direction are staggered in the length direction; the tenon-tenon joints of the recombined bamboo layer plates adjacent in the thickness direction are staggered in the width direction. The staggered tenon-tenon joints mean that the positions projected on a horizontal plane are different.
As an improvement of the recombined bamboo structural material, adjacent recombined bamboo board blank units are horizontally finger-jointed, and the tenon-tenon joints of all recombined bamboo boards are staggered in the length direction; the tenon-tenon joints of all the recombined bamboo layer boards are staggered in the width direction.
As an improvement of the recombined bamboo structural material, a secondary repressing adhesive is filled between adjacent recombined bamboo laminate plates in the thickness direction, and the adhesive is resorcinol glue, isocyanate glue or epoxy resin glue.
The utility model discloses a beneficial effect of reorganization bamboo structural material is: the standard adjustment of finger joint length, oblique joint or split width can be carried out according to the design or use requirements, the strength is higher, and the column, the beam and the like for large-specification buildings can be formed. Furthermore, the finger joint tenon tooth shape with small embedding degree is adopted, the locking force of the finger joint tenon of the slab unit is larger, the tooth is not easy to disengage, and convenience is provided for the continuous finger joint lengthening operation of the slab.
Drawings
Fig. 1 is a schematic structural view (a side view in the thickness direction) of a reconstituted bamboo structural material according to a first embodiment of the present invention.
Fig. 2 is an enlarged view of a connection portion of the recombined bamboo slab unit of the recombined bamboo structural material according to the first embodiment of the present invention.
Fig. 3 is a schematic structural view of the finger joint tenon of the recombined bamboo structural material according to the first embodiment of the present invention.
Fig. 4 is a schematic structural view (plan view) of a reconstituted bamboo structural material according to a second embodiment of the present invention.
Fig. 5 is an enlarged view of a connection point of the recombined bamboo slab units of the recombined bamboo structural material according to the second embodiment of the present invention.
In the figure, 1, recombining bamboo layer plates; 11. recombining a bamboo board blank unit; 111. finger joint finger tenon; 12. a tongue and groove joint.
Detailed Description
The technical solutions of the embodiments of the present invention will be explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and are not all embodiments. Other embodiments obtained by persons skilled in the art without any inventive work based on the embodiments in the embodiment belong to the protection scope of the invention.
Referring to fig. 1 to 5, the recombined bamboo structural material comprises a plurality of layers of recombined bamboo laminates stacked in the thickness direction, each recombined bamboo laminate is formed by splicing a plurality of recombined bamboo slab units, the adjacent recombined bamboo slab units are connected through tenons and tenons corresponding to the shapes and the sizes, the tenons and the tenons are finger joints, oblique joints or hook joints, and the tenon and tenon joints of the recombined bamboo laminates adjacent in the thickness direction are staggered.
The utility model discloses a restructural bamboo structural material, restructural bamboo structural material's restructural bamboo plywood is formed by the concatenation of a plurality of restructural bamboo slab units, and restructural bamboo structural material's specification is adjustable, can indicate to connect length, scarf joint and splice specification adjustment such as widen according to design or user demand during production, be convenient for become for large specification stand for building and roof beam etc. the practicality is good; adjacent reorganization bamboo board base unit passes through tongue and groove connection, and the processing is easy and reorganization bamboo board base unit is indirect long to be connect wide comparatively convenient, and intensity is better simultaneously.
Example one
Referring to fig. 1 to 3, the utility model provides a reorganization bamboo structural timber, including multilayer reorganization bamboo plywood 1, reorganization bamboo plywood 1 is formed along length direction concatenation by a plurality of reorganization bamboo slab units 11, and length direction is adjacent reorganization bamboo slab unit 11 passes through the tongue and groove connection, and the tongue and groove is for pointing joint finger tenon 111. The finger joint 111 has a plurality of teeth, all of which are the same size.
Different recombined bamboo structural materials have different specifications such as sizes due to different design or use requirements, but the specifications of the finger joint finger tenons 111 of the recombined bamboo slab units 11 forming the same recombined bamboo structural material are the same, so that the finger joint among the recombined bamboo slab units 11 can be ensured to be smooth and meet the finger joint requirement of small embedding degree among the finger joint finger tenons 111, and the large-specification recombined bamboo structural materials, particularly the lengthened recombined bamboo structural materials, produced by the method have better finger joint strength and higher strength.
As an improvement of the recombined bamboo structural material, the tenon and tenon are finger joint tenon 111, and the recombined bamboo board blank units 11 adjacent in the length direction are horizontally finger-jointed. The horizontal finger joint is also called a hidden tooth finger joint, and the shape of the finger joint tenon 111 can be seen on the side.
One end or two ends (except the outermost end, the middle is two ends) of the recombined bamboo board blank unit 11 are processed into finger joint finger tenons 111 through a comb machine (configured with a comb cutter special for recombined bamboo). The density of the recombined bamboo is more than or equal to 1.2g/cm3(two to three times of the density of the conventional soft pine), if the conventional pine comb-teeth cutter is still adopted by the comb-teeth machine to perform the comb-teeth operation on the recombined bamboo board blank unit 11, the comb-teeth cutter is very easy to wear, and the worn cutter can form more carbonization spots on the comb-teeth operation surface due to heating, so that the finger joint gluing strength is influenced, the appearance is poor, and particularly, when the comb-teeth cutter is not in time to maintain, grind, repair or replace, serious faults of cutter tooth breakage or cutter clamping can occur. The cutter teeth of the special comb tooth cutter for the recombined bamboo are made of hard materials such as diamond, and the size, the shape and the like of the cutter teeth are matched with the finger joint tenon 111 processed by the cutter teeth.
As an improvement of the recombined bamboo structural material, the difference between the tooth bottom width and the tooth top width of the finger joint tenon 111 is 0.05-1.0 mm. The difference between the tooth bottom width and the tooth top width is the fitting degree. The tooth form of the finger joint tenon 111 with small embedding degree is adopted, the locking force of the finger joint tenon 111 of the slab unit is larger, the tooth is not easy to disengage, and convenience is provided for the continuous finger joint lengthening operation of the slab. In fig. 3, the tooth bottom width is T2 and the tooth top width is T1.
As an improvement of the recombined bamboo structural material, the difference between the tooth bottom width and the tooth top width of the finger joint tenon 111 is 0.05-0.5 mm.
As an improvement of the recombined bamboo structural material, the tooth top width of the finger joint tenon 111 is not less than 2 mm; the tooth depth of the finger joint tenon 111 is not less than 20 mm; the length of the recombined bamboo slab unit 11 is 0.5-3 m.
As an improvement of the recombined bamboo structural material, the tooth top width of the finger joint tenon 111 is 2-5 mm; the depth of the finger joint tenon 111 is 20-50 mm; the length of the recombined bamboo board blank unit 11 is 1.8-2.5 m; the slope of the finger joint 111 is 1/10-1/20. The depth of the finger joint 111 is L in fig. 3. The slope of the slope is tan α in fig. 3.
As an improvement of the recombined bamboo structural material, in order to ensure the use strength of the recombined bamboo structural material, the finger joints of the adjacent two layers of the recombined bamboo laminates 1 are arranged in a staggered manner in the longitudinal length direction, so that the technical defects of the breakage of the recombined bamboo structural material caused by consistent joint positions and sudden strength drop of the recombined bamboo laminates 1 in each layer of the recombined bamboo structural material are overcome, and the structural strength of the recombined bamboo structural material is ensured.
As an improvement of the recombined bamboo structural material, the quantity of the recombined bamboo laminates 1 forming the recombined bamboo structural material in a laminating way is relatively small, and the tenon-tenon joints 12 of all the recombined bamboo laminates 1 are staggered in the length direction. In this example, the number of the recombined bamboo layers 1 is 4. In this embodiment, the recombined bamboo plywood 1 can be formed by splicing five kinds of recombined bamboo plywood blank units 11, wherein the two end parts are four kinds, and the middle part is one kind.
As an improvement of the recombined bamboo structural material, a secondary repressing adhesive is filled between adjacent recombined bamboo layer plates 1 in the thickness direction, and the adhesive is resorcinol glue, isocyanate glue or epoxy resin glue.
In other embodiments, the recombined bamboo slabs can be connected by oblique tenon or hook tenon.
The embodiment of the utility model provides a beneficial effect of reorganization bamboo structural wood is: the specifications of finger joint lengthening and stacking thickening can be adjusted according to the design or use requirements, so that large-specification building columns, beams and the like can be conveniently formed, the strength is high, and the practicability is good; the tooth form of the finger joint tenon 111 with small embedding degree is adopted, the locking force of the finger joint tenon 111 of the slab unit is larger, the tooth is not easy to disengage, and convenience is provided for the continuous finger joint lengthening operation of the slab.
Example two
The difference between the second embodiment and the first embodiment is that the recombined bamboo board blank units 11 adjacent in the length direction are horizontally finger-jointed.
Referring to fig. 4 and 5, in the recombined bamboo structural material of the second embodiment of the present invention, the recombined bamboo slab units 11 adjacent to each other in the length direction are vertically finger-jointed. The vertical finger joint is visible in the front in the shape of the finger joint knuckle 111.
The number (number of layers) of the recombined bamboo laminates 1 which are laminated to form the recombined bamboo structural material is large, the finger joint positions of the recombined bamboo laminates 1 in odd-numbered layers in the figure are the same, the finger joint positions of the recombined bamboo laminates 1 in even-numbered layers are also the same, and the finger joints of the recombined bamboo laminates 1 in adjacent odd-numbered layers and even-numbered layers are staggered with each other in the longitudinal length direction. Due to the fact that the number of layers is large, the tenon-tenon joint parts 12 of the recombined bamboo board plates 1 of each layer are not required to be staggered, and the types of the recombined bamboo board blank units 11 are reduced. In this example, the number of the recombined bamboo laminate 1 is 8. In this embodiment, the recombined bamboo board 1 can be assembled by at least three recombined bamboo board blank units 11, two of which are arranged at two ends and one of which is arranged in the middle.
Other structures and effects of the second embodiment are the same as those of the first embodiment, and are not described herein.
EXAMPLE III
The third embodiment is different from the first embodiment in that the reformed bamboo mat units are connected in the length direction and the width direction.
In the third embodiment, the reformed bamboo mat units are connected not only in the length direction but also in the width direction to obtain a reformed bamboo laminate of a larger size. The tenon-tenon joints of the recombined bamboo layer plates adjacent in the thickness direction are staggered in the length direction and the width direction.
Other structures and effects of the third embodiment are the same as those of the first embodiment, and are not described herein.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto but is intended to cover various modifications and changes, including but not limited to the details shown in the drawings and described in the foregoing detailed description. Any modification which does not depart from the functional and structural principles of the invention is intended to be included within the scope of the following claims.
Claims (10)
1. A restructured bamboo structural material, which is characterized in that: the recombined bamboo structural timber comprises a plurality of layers of recombined bamboo laminated boards (1) stacked in the thickness direction, the recombined bamboo laminated boards (1) are formed by splicing a plurality of recombined bamboo board blank units (11), the recombined bamboo board blank units (11) are adjacent to each other and are connected through tenons and tenons corresponding to the shapes and the sizes, the tenons and the tenons are finger joints (111), oblique joints or hook joints, and the tenon and tenon joints (12) of the recombined bamboo laminated boards (1) adjacent to the thickness direction are staggered.
2. The reconstituted bamboo structural lumber according to claim 1, wherein: the difference between the tooth bottom width and the tooth top width of the finger joint tenon (111) is 0.05-1.0 mm.
3. The reconstituted bamboo structural lumber according to claim 2, wherein: the difference between the tooth bottom width and the tooth top width of the finger joint tenon (111) is 0.05-0.5 mm.
4. The reconstituted bamboo structural lumber according to claim 1, wherein: the tooth top width of the finger joint tenon (111) is not less than 2 mm; the tooth depth of the finger joint tenon (111) is not less than 20 mm; the length of the recombined bamboo board blank unit (11) is 0.5-3 m.
5. The reconstituted bamboo structural lumber according to claim 4, wherein: the tooth top width of the finger joint tenon (111) is 2-5 mm; the depth of the finger joint tenon (111) is 20-50 mm; the length of the recombined bamboo board blank unit (11) is 1.8-2.5 m; the slope of the inclined plane of the finger joint tenon (111) is 1/10-1/20.
6. The reconstituted bamboo structural lumber according to claim 1, wherein: the adjacent recombined bamboo board blank units (11) are in horizontal finger joint, the number of layers of the recombined bamboo board blank units (11) is less than or equal to 6, and the tenon-tenon joints (12) of all the recombined bamboo layer boards (1) are staggered in the length direction.
7. The reconstituted bamboo structural lumber according to claim 6, wherein: the recombined bamboo board blank units (11) are identical except for two ends.
8. The reconstituted bamboo structural lumber according to claim 1, wherein: the adjacent recombined bamboo board blank units (11) are vertically finger-jointed, and the layer number of the recombined bamboo board blank units (11) is more than or equal to 7.
9. The reconstituted bamboo structural lumber according to claim 1, wherein: the recombined bamboo board blank units (11) are spliced along the length direction and the width direction.
10. The reconstituted bamboo structural lumber according to claim 1, wherein: and an adhesive is filled between the adjacent recombined bamboo layer plates (1) in the thickness direction, and is resorcinol glue, isocyanate glue or epoxy resin glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922249056.1U CN211808239U (en) | 2019-12-16 | 2019-12-16 | Recombined bamboo structural material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922249056.1U CN211808239U (en) | 2019-12-16 | 2019-12-16 | Recombined bamboo structural material |
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| Publication Number | Publication Date |
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| CN211808239U true CN211808239U (en) | 2020-10-30 |
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| CN201922249056.1U Active CN211808239U (en) | 2019-12-16 | 2019-12-16 | Recombined bamboo structural material |
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