CN203284891U - Bamboo structure adaptor - Google Patents
Bamboo structure adaptor Download PDFInfo
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- CN203284891U CN203284891U CN2013202735713U CN201320273571U CN203284891U CN 203284891 U CN203284891 U CN 203284891U CN 2013202735713 U CN2013202735713 U CN 2013202735713U CN 201320273571 U CN201320273571 U CN 201320273571U CN 203284891 U CN203284891 U CN 203284891U
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Abstract
The utility model relates to a bamboo structure adaptor which comprises a round sleeve and a connector, a wedge-shaped inner sleeve and a wedge-shaped expanding rod, wherein the wedge-shaped inner sleeve and the wedge-shaped expanding rod are located in the round sleeve. One end of the round sleeve is a sealed end, a through hole is formed in the sealed end, the outer diameter of the wedge-shaped inner sleeve is an equal diameter, the inner diameter of the wedge-shaped outer sleeve is a variable diameter, the wall thickness of the wedge-shaped inner sleeve is continuously increased in the axis direction of the wedge-shaped inner sleeve, so that a wedge shape is formed. The wedge-shaped expanding rod comprises an expanding section and a driving section, wherein the expanding section is a round rod part with a wedge-shaped variable cross-section, the diameter of the largest position of the cross section is larger than that of the wedge-shaped inner sleeve, the driving section is an equal cross section round rod with an outer thread, the diameter of the cross section of the driving section is matched with the size of a through hole of the round sleeve, the wedge-shaped expanding rod is located in the wedge-shaped inner sleeve, the driving section penetrates out of the through hole of the round sleeve, and a driving nut is arranged on the driving section. The bamboo structure adaptor is simple to process and manufacture, can be fast installed due to the fact that concrete material does not need to be poured, and can achieve plugging and playing.
Description
Technical field
The utility model belongs to building engineering field, relates to a kind of bamboo structure crossover sub.
Background technology
Bamboo wood is a kind of natural green recyclable materials comparatively widely that distributes on the earth, has higher specific strength and the advantages such as specific stiffness and pliability.The bamboo timber resource of China is very abundant, be widely used in for a long time the various aspects of industrial and agricultural production and life, particularly after the 2010 World Fair, various circles of society pay attention to the sustainable development of low-carbon environment-friendly more, how people begin one's study again this ancient material application in the modern architecture field, make it again shine the new youth.
In order to make bamboo wood can more be widely used in the modern architecture field, one of its key point is the connectivity problem that how to solve between bamboo wood.Determined the scrambling of its bore, wall thickness uniform section physical dimension due to the uncontrollability of bamboo wood growth course, bamboo wood can not be as through artificial the manufacturing the shaped steel produced, having good dimensional stability.Therefore, in the productive life of 1,100, people adopt the modes such as colligation, Tenon, bolt, sleeve that bamboo wood is connected always in the past, and bonding strength and rigidity are difficult to be protected, thereby directly have influence on bamboo structure intensity, rigidity and stability, restricted the application of bamboo wood.
Notice of authorization number is CN 2761727, name is called the Chinese patent literature of " the former bamboo structure node that is used for Dai's bamboo tower " and has introduced for former bamboo structure joint structure commonly used, wherein yi word pattern, T-shaped, X-type, L-type node etc. are by the complete node that runs through of one or more former bamboo, the suspension column structure adopts metal rim of a cup concrete perfusion mode to be strengthened node, although increased the construction measures such as bolt at Nodes, the Rigidity and strength that connects is also unreliable; Notice of authorization CN 2021171176U, name is called " a kind of bamboo structured connecting joint " and notice of authorization number is CN202023258U, name is called in the Chinese patent literature of " a kind of bolt-sphere connecting node of bamboo structure " and discloses respectively two kinds and be used for the steel nodes that bamboo structure connects, its principal character be the steel node with bamboo wood between adopt embedded bar to add filling concrete mode be connected.the problem that the mode of this connection exists is: the adhesion strength between concrete and bamboo wood is very low, relative sliding can occur between the two, can't transmit axial force by concrete, therefore in most of the cases, axial force is in fact mainly transmitted between bamboo wood and stirrup by the cross reinforcing rib, contact point at bamboo wood and stirrup can produce the stress concentration phenomenon, the load that connection can be transmitted depends on the crushing strength between cross reinforcing rib and bamboo wood fully, the anti-splitting ability of bamboo wood, the contact point place can destroy prior to bamboo wood, can not give full play to the supporting capacity of bamboo wood.
Due to the unreliability that connects, existing Structural Analysis Theory and finite element method and laboratory facilities can not in depth be applied in the analytical calculation of bamboo structure.
Due to the variety of problems that bamboo structure connection aspect exists, the range of application of bamboo structure has been received very large restriction, generally is mainly used in the not high provisional building structure of importance or manufactures sheet material.And ball node and plate node that the steel structure net rack of widely applying at present and truss adopt are a kind of very ripe joint forms, if bamboo wood can be interconnected by ball node or plate node, form the bamboo structure of steel node, be bound to greatly promote the application of bamboo wood at building engineering field.The key that addresses this problem is the crossover sub that finds between a kind of bamboo wood and steel node, and can make its bonding strength and rigidity all higher than bamboo wood self strength and stiffness make.
The utility model content
In order to overcome above-mentioned defect of the prior art, the utility model provides a kind of bamboo structure crossover sub reliable, that be convenient to install that connects.
in order to realize the foregoing invention purpose, the technical solution of the utility model is: a kind of bamboo structure crossover sub, comprise circular sleeve and connector, also comprise the wedge shape inner sleeve and the wedge shape expansion rod that are positioned at the garden sleeve pipe, described circular sleeve one end is made as blind end, the other end is made as openend, the center of described blind end is provided with through hole, the external diameter of wedge shape inner sleeve is equal diameter, internal diameter is for straightening footpath, its wall thickness increases continuously and is wedge shape along its axis direction, described wedge shape expansion rod comprises expansion arc and drives section, expansion arc wherein is the circular rod member in Wedging cross section, the diameter at place, maximum cross-section is greater than described wedge shape inner sleeve, driving section is with externally threaded uniform section round bar, drive section diameter of section and circular sleeve hole size coupling, the wedge shape expansion rod is positioned at the wedge shape inner sleeve, the described section that drives passes the through hole of circular sleeve, and drive on section drive nut is installed.
described circular sleeve is nested in the outer wall of bamboo end, can play the effect of " pipe collar " around the outer wall of bamboo wood, the restriction bamboo wood is along the distortion of its wall thickness direction, wedge shape expansion rod and drive nut coordinate, when the described drive nut of rotation, can drive the wedge shape expansion rod moves along its axis direction, the wedge shape expansion rod moves and embeds in the wedge shape inner sleeve vertically, wedge shape inner sleeve diameter is increased, described wedge shape inner sleeve is positioned at bamboo wood inside, increase with wedge shape inner sleeve diameter, extruding bamboo wood inwall, thereby bamboo wood is fixed between circular sleeve 1 and wedge shape inner sleeve, bamboo wood closely is connected with this crossover sub.
Preferably, described connector comprises conehead, bolt sleeve, shank of bolt and pin, described conehead is comprised of conically shaped and shrouding, shrouding is positioned at the conically shaped top, the conically shaped bottom is threaded with the circular sleeve blind end, described shrouding is provided with a circular hole, shank of bolt is arranged in circular hole, described shank of bolt comprises head and bar section, head is positioned at conically shaped, bar section is positioned at the conically shaped outside, all offers chute on bolt sleeve and shank of bolt, and described pin interconnects bolt sleeve and shank of bolt by chute.
Preferably, described wedge shape inner sleeve has several otch parallel with its axis along circumference, and the length of described otch is less than the length of wedge shape inner sleeve.
On the wedge shape inner sleeve, otch is set, makes under the wedge shape inner sleeve and more easily expand under the extruding of wedge shape expansion rod.
Preferably, described connector is made as junction plate, and described junction plate one end is connected with circular sleeve, and the other end is provided with groove.
Preferably, described wedge shape expansion rod comprises wedge shape urceolus and circular inner tube, and wedge shape urceolus and circular inner tube directly are provided with the cross reinforcing rib.The wedge shape expansion rod adopts the open-core type structure to have, bamboo wood cross section compliance good characteristics moderate from heavy and light, rigidity
Preferably, described wedge shape expansion rod is the integral type entity structure.
Preferably, described circular sleeve is provided with some screws, and trip bolt is installed on screw.
The beneficial effects of the utility model are:
(1) the wedge shape expansion rod can make the wedge shape inner sleeve along circumferential outer expansion, thereby makes the bamboo wood between circular sleeve and wedge shape inner sleeve be subject to very large extruding force.Consider the non-circular geometrical feature of bamboo material transversal surface, if in the end of bamboo wood along circumferentially offering the otch parallel with the bamboo wood axis of some, can make to contact more evenly between circular sleeve and bamboo wood, connect more firm;
(2) firm and reliable connection, can not produce because of junction stress concentration phenomenon, can equably the internal force of bamboo wood be delivered on node by circular sleeve.Also make existing Structural Analysis Theory, finite element method and experimental technique can be applied in the analytical calculation of bamboo structure, can expand widely the application of bamboo wood;
(3) described crossover sub processing and fabricating is simple,, due to without the concrete perfusion material,, so install fast, can realize plug and play; The while convenient disassembly, recyclable recycling, can not produce discarded object, is conducive to environmental protection;
(4) described crossover sub can adapt to the bamboo wood of various sectional dimensions and shape, applied range.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the decomposition texture schematic diagram of the utility model embodiment 1;
Fig. 3 is Figure 1A-A position sectional view;
Fig. 4 is the assembling process schematic diagram of the utility model embodiment 1;
Fig. 5 is the bamboo structure crossover sub of the utility model embodiment 1 and the connection diagram between ball node;
Fig. 6 is the decomposition texture schematic diagram of the utility model embodiment 2;
Fig. 7 is the assembling process schematic diagram of the utility model embodiment 2;
Fig. 8 is the bamboo structure crossover sub of the utility model embodiment 2 and the connection diagram between truss gusset plate.
The specific embodiment
Below in conjunction with concrete the drawings and specific embodiments, the utility model is described further.
As Figure 1-3, the bamboo structure crossover sub of the present embodiment comprises: circular sleeve 1, wedge shape inner sleeve 3, wedge shape expansion rod 4, trip bolt 5, expansion rod drive nut 7 and connector, described connector comprises conehead, shank of bolt 10, bolt sleeve 11 and pin 12, and described conehead comprises conically shaped 8, shrouding 9.
Shrouding 9 is positioned at conically shaped 8 tops, conically shaped 8 bottoms are threaded with circular sleeve 1 blind end, be provided with circular hole in the middle of described shrouding 9, shank of bolt 10 is arranged in circular hole, described shank of bolt 10 comprises head and bar section, and head is positioned at conically shaped 8, and bar section is positioned at conically shaped 8 outsides, all offer chute on bolt sleeve 11 and shank of bolt 10, described pin 12 interconnects bolt sleeve 11 and shank of bolt 10 by chute.
Wedge shape inner sleeve 3 has several otch parallel with its axis along circumference, and the length of described otch is less than the length of wedge shape inner sleeve 3.On the wedge shape inner sleeve, otch is set, makes under the wedge shape inner sleeve and more easily expand under the extruding of wedge shape expansion rod.
Wedge shape expansion rod 4 comprises wedge shape urceolus and circular inner tube, and wedge shape urceolus and circular inner tube directly are provided with the cross reinforcing rib.Wedge shape expansion rod 4 adopts the open-core type structures to have, bamboo wood cross section compliance good characteristics moderate from heavy and light, rigidity.According to the actual requirements, wedge shape expansion rod 4 also can adopt the integral type entity structure.Described circular sleeve 1 is provided with some screws, and trip bolt 5 is installed on screw.Trip bolt 5 is the secure components that are used for fixing described circular sleeve and bamboo wood after crossover sub installs, every group comprises two trip bolts 5, between every group, the angle of circumference at interval is generally 90 °, and the diameter of screw and length are looked the concrete conditions such as the sectional dimension of bamboo wood and wall thickness and determined.
As shown in Figure 4, the number of assembling steps of the present embodiment is:
(a) shank of bolt 10 is inserted the hole of shrouding 9 from conehead opening one side, in shrouding one side of conehead, bolt sleeve 11 is enclosed within on shank of bolt 10, and with pin 12, fixes, assemble the conehead part;
(b) wedge shape inner sleeve 3 is inserted in circular sleeve 1;
(c) wedge shape expansion rod 4 is inserted in wedge shape inner sleeve 3, rotation expansion rod drive nut 7, assemble fittings body;
(d) smear resin glue 6 in the end of bamboo wood 2, the fittings body that assembles is nested in the end of bamboo wood 2, then continue along clockwise direction rotation expansion rod drive nut 7, until crossover sub firmly is connected with bamboo wood 2, trip bolt 5 is installed;
The conehead that (e) will assemble partly is arranged on the circular sleeve 1 of fittings body.
As shown in Figure 5, the bamboo wood 2 that installs crossover sub can adopt the ball node connected mode of generally using in structural steelwork to form various space structures., with the hexagon bolt sleeve 11 of hexagon bolt wrench rotation crossover sub end, drive shank of bolt 10 and screw in the bolt hole of bolted spherical node 13, until hexagon bolt sleeve 11 compresses with bolted spherical node 13.Do the used time when the bamboo wood bearing tension, the pulling force of bamboo wood 2 is passed to bolted spherical node 13 by shank of bolt 10; When bamboo wood bore pressure, the pressure of bamboo wood 2 was passed to bolted spherical node 13 by bolt sleeve 11.
As Fig. 6-8, the distinguishing characteristics of the present embodiment and embodiment 1 is: described connector is made as junction plate 14, and described junction plate 14 1 ends are connected with circular sleeve 1, and the other end is provided with groove.According to the plate thickness of truss gusset plate 15, suitable groove width is set, at the other end of junction plate 14, offers semi-circular cut-out, it is identical with embodiment 1 that other do not state part.The connector of the present embodiment is used for being connected with truss gusset plate, and the connector of embodiment 1 is used for being connected with bolted spherical node.
As Fig. 7, the number of assembling steps of the present embodiment is:
(a) junction plate 14 is welded on the blind end of circular sleeve 1;
(b) wedge shape inner sleeve 3 is inserted in round jacket pipe 1;
(c) wedge shape expansion rod 4 is inserted in wedge shape inner sleeve 3, rotation expansion rod drive nut 7, assemble crossover sub;
(d) smear resin glue 6 in the end of bamboo wood 2, the crossover sub that assembles is nested in the end of bamboo wood 2, then continue along clockwise direction rotation expansion rod drive nut 7, until crossover sub firmly is connected with bamboo wood 2, trip bolt 5 is installed.
As shown in Figure 8, will be with reeded junction plate 14 to be embedded on truss gusset plate 15, and groove can form truss structural with 15 welding of junction plate 14 and truss gusset plate, the internal force of member is by junction plate 14 junctions and truss gusset plate 15 and mutual balance.
Claims (7)
1. bamboo structure crossover sub, comprise circular sleeve and connector, it is characterized in that: also comprise the wedge shape inner sleeve and the wedge shape expansion rod that are positioned at the garden sleeve pipe, described circular sleeve one end is made as blind end, the other end is made as openend, the center of described blind end is provided with through hole, the external diameter of wedge shape inner sleeve is equal diameter, internal diameter is for straightening footpath, its wall thickness increases continuously and is wedge shape along its axis direction, described wedge shape expansion rod comprises expansion arc and drives section, expansion arc wherein is the circular rod member in Wedging cross section, the diameter at place, maximum cross-section is greater than described wedge shape inner sleeve, driving section is with externally threaded uniform section round bar, drive section diameter of section and circular sleeve hole size coupling, the wedge shape expansion rod is positioned at the wedge shape inner sleeve, the described section that drives passes the through hole of circular sleeve, and drive on section drive nut is installed.
2. bamboo structure crossover sub according to claim 1, it is characterized in that: described connector comprises conehead, bolt sleeve, shank of bolt and pin, described conehead is comprised of conically shaped and shrouding, shrouding is positioned at the conically shaped top, the conically shaped bottom is threaded with the circular sleeve blind end, described shrouding is provided with a circular hole, shank of bolt is arranged in circular hole, described shank of bolt comprises head and bar section, head is positioned at conically shaped, bar section is positioned at the conically shaped outside, all offer chute on bolt sleeve and shank of bolt, described pin interconnects bolt sleeve and shank of bolt by chute.
3. bamboo structure crossover sub according to claim 1, it is characterized in that: described wedge shape inner sleeve has several otch parallel with its axis along circumference, and the length of described otch is less than the length of wedge shape inner sleeve.
4. bamboo structure crossover sub according to claim 1, it is characterized in that: described connector is made as junction plate, and described junction plate one end is connected with circular sleeve, and the other end is provided with groove.
5. bamboo structure crossover sub according to claim 1, it is characterized in that: described wedge shape expansion rod comprises wedge shape urceolus and circular inner tube, and wedge shape urceolus and circular inner tube directly are provided with the cross reinforcing rib.
6. bamboo structure crossover sub according to claim 1, it is characterized in that: described wedge shape expansion rod is the integral type entity structure.
7. bamboo structure crossover sub according to claim 1, it is characterized in that: described circular sleeve is provided with some screws, and trip bolt is installed on screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202735713U CN203284891U (en) | 2013-05-20 | 2013-05-20 | Bamboo structure adaptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202735713U CN203284891U (en) | 2013-05-20 | 2013-05-20 | Bamboo structure adaptor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203284891U true CN203284891U (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202735713U Expired - Fee Related CN203284891U (en) | 2013-05-20 | 2013-05-20 | Bamboo structure adaptor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203284891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266668A (en) * | 2013-05-20 | 2013-08-28 | 浙江科技学院 | Bamboo structure conversion connector |
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2013
- 2013-05-20 CN CN2013202735713U patent/CN203284891U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266668A (en) * | 2013-05-20 | 2013-08-28 | 浙江科技学院 | Bamboo structure conversion connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20140520 |