CN203284890U - Bamboo structure prestress changeover connector - Google Patents
Bamboo structure prestress changeover connector Download PDFInfo
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- CN203284890U CN203284890U CN2013202735501U CN201320273550U CN203284890U CN 203284890 U CN203284890 U CN 203284890U CN 2013202735501 U CN2013202735501 U CN 2013202735501U CN 201320273550 U CN201320273550 U CN 201320273550U CN 203284890 U CN203284890 U CN 203284890U
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- wedge shape
- sleeve
- bolt
- expansion rod
- wedge
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Abstract
The utility model relates to a bamboo structure prestress changeover connector which comprises a round sleeve and a connector body. The bamboo structure prestress changeover connector further comprises a wedge-shaped inner sleeve located in the round sleeve and a wedge-shaped expansion rod. One end of the round sleeve is closed, and the other end of the round sleeve is open, wherein an expansion rod driving bolt which extends toward the open end is arranged at the center of the closed end. The outer diameter of the wedge-shaped inner sleeve is an equal diameter. The inner diameter of the wedge-shaped inner sleeve is a variable diameter. The wall thickness of the wedge-shaped inner sleeve increases continuously in the axis direction of the wedge-shaped inner sleeve to form a wedge shape. The wedge-shaped expansion rod is a round rod piece with a wedge-shaped variable cross-section and is located in the wedge-shaped inner sleeve. The internal surface gradient of the wedge-shaped inner sleeve is the same as the external surface gradient of the wedge-shaped expansion rod. A bolt hole matched with the expansion rod driving bolt is formed in the center of the wedge-shaped expansion rod. The bamboo structure prestress changeover connector is simple to machine and manufacture; due to the fact that pouring of concrete materials is not needed, the bamboo structure prestress changeover connector can be installed quickly and can be used immediately after being inserted; meanwhile, the bamboo structure prestress changeover connector is convenient to dismantle, capable of being recycled for reuse, free of waste and beneficial to environmental protection.
Description
Technical field
The utility model belongs to building engineering field, relates to a kind of bamboo structure prestressing force 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 provide a kind of installation simple, connect reliable bamboo structure prestressing force crossover sub.
in order to realize the foregoing invention purpose, the technical solution of the utility model is: a kind of bamboo structure prestressing force 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 the expansion rod that extends to openend and drives bolt, 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 is made as the circular rod member in Wedging cross section, and be positioned at the wedge shape inner sleeve, the inner surface gradient of described wedge shape inner sleeve is identical with the wedge shape expansion rod external surface gradient, described wedge shape expansion rod center is provided with the bolt hole that drives the bolt coupling with expansion rod.
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, expansion rod on wedge shape expansion rod and round buss drives bolt and coordinates, when the described circular sleeve of rotation, can drive expansion rod driving bolt screws in the bolt hole of wedge shape expansion rod, thereby driving 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, fit in wedge shape inner sleeve and garden sleeve pipe, 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 connects 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 prestressing force 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 prestressing force 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 prestressing force 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 bolt 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 connect 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, 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 opening one side of conehead, in the shrouding outside of conehead, bolt sleeve 11 is enclosed within on shank of bolt 10, and fixing with pin 12, assemble the conehead part;
The conehead that (b) will assemble partly is welded on circular sleeve 1;
(c) wedge shape inner sleeve 3 being enclosed within the expansion rod that is fixed on circular sleeve 1 drives on bolt 7;
(d) wedge shape expansion rod 4 is inserted in wedge shape inner sleeve 3, rotational circle sleeve pipe 1, drive expansion rod driving bolt 7 and screw in the bolt hole of wedge shape expansion rods 4, assembles crossover sub;
(e) 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 rotational circle sleeve pipe 1, until crossover sub firmly is connected with bamboo wood 2, trip bolt 5 is installed.
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 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, 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.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 circular sleeve 1;
(b) wedge shape inner sleeve 3 being enclosed within the expansion rod that is fixed on circular sleeve 1 drives on bolt 7;
(c) wedge shape expansion rod 4 is inserted in wedge shape inner sleeve 3, rotational circle sleeve pipe 1, drive expansion rod driving bolt 7 and screw in the bolt hole of wedge shape expansion rods 4, assembles crossover sub;
The crossover sub that (d) will assemble is nested in the end of the bamboo wood 2 of smearing resin glue 6, then continues along clockwise direction rotational circle sleeve pipe 1, 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 prestressing force 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 the expansion rod that extends to openend and drives bolt, 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 is made as the circular rod member in Wedging cross section, and be positioned at the wedge shape inner sleeve, the inner surface gradient of described wedge shape inner sleeve is identical with the wedge shape expansion rod external surface gradient, described wedge shape expansion rod center is provided with the bolt hole that drives the bolt coupling with expansion rod.
2. bamboo structure prestressing force 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 connects 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 prestressing force 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 prestressing force 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 prestressing force 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 prestressing force 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 prestressing force 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 |
|---|---|---|---|
| CN2013202735501U CN203284890U (en) | 2013-05-20 | 2013-05-20 | Bamboo structure prestress changeover connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202735501U CN203284890U (en) | 2013-05-20 | 2013-05-20 | Bamboo structure prestress changeover connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203284890U true CN203284890U (en) | 2013-11-13 |
Family
ID=49541261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202735501U Withdrawn - After Issue CN203284890U (en) | 2013-05-20 | 2013-05-20 | Bamboo structure prestress changeover connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203284890U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266666A (en) * | 2013-05-20 | 2013-08-28 | 浙江科技学院 | Bamboo structure prestress conversion connector |
| CN113202223A (en) * | 2021-04-30 | 2021-08-03 | 浙江中成建工集团有限公司 | Automatic construction equipment of abnormal shape furred ceiling |
-
2013
- 2013-05-20 CN CN2013202735501U patent/CN203284890U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266666A (en) * | 2013-05-20 | 2013-08-28 | 浙江科技学院 | Bamboo structure prestress conversion connector |
| CN113202223A (en) * | 2021-04-30 | 2021-08-03 | 浙江中成建工集团有限公司 | Automatic construction equipment of abnormal shape furred ceiling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131113 Effective date of abandoning: 20150701 |
|
| RGAV | Abandon patent right to avoid regrant |