CN205637173U - Former bamboo building element bolt ball nodal connection structure - Google Patents

Abstract

The utility model relates to a former bamboo building element bolt ball nodal connection structure, including bamboo, outer taper pipe and interior taper pipe, make a plurality of conical tooth pieces at the bamboo tip, this a plurality of conical tooth pieces hold together to cohesion and its inner edge pressure in the outer fringe of the interior taper pipe of its embedded dress, suit in a plurality of conical tooth piece outer fringes outer taper pipe, it is female that the upper end outer fringe meshing suit lock that taper pipe upper end stretches out is stood by as an outsider to interior taper pipe, should lock female tighten the back make in taper pipe and inner edge and the outer fringe of the inseparable crimping of outer taper pipe difference at a plurality of conical tooth pieces including, the taper pipe set up a bolt in stretching out the upper end on the outer taper pipe, the end that this bolt stretches out interior taper pipe is used for the connecting bolt ball. The utility model provides a prior art's defect, improved joint strength, the installation and dismantle of being more convenient for makes buildding of rack more convenient, maintain more portably, be applicable to that modern former bamboo structure house is built and large -span rack former bamboo structure in space is used in constructing.

Description

A kind of former bamboo building element bolted spherical node attachment structure

Technical field

This utility model belongs to the technical field of improvement of former bamboo building unit node connecting structure, a kind of former bamboo building element Bolted spherical node attachment structure.

Background technology

Along with the raising of people's environmental consciousness, former bamboo building is increasingly subject to people's attention and favors, and it is using bamboo stem as mainly Structural elements, be aided with the construction materials such as steel, wood, rattan, cement, by certain node connection mode define bamboo building Agent structure, is especially widely used at building fields such as country houses.Existing ring point is compared with frequently with following Mode: 1. rope binding is fixed with nail；2. bolt is directly connected to；3. bamboo stem wears bucket structure；4. cement mortar perfusion and steel structure Part structure；5. cement mortar perfusion structure；In 1st kind of mode, rope be easily subject to the impact of amblent air temperature and occur fracture or The phenomenon rotted, causes the problems such as weight bearing power reduction, unexpected fracture；In 2nd kind of mode, bolt passes bamboo stem, easily occurs The phenomenon that bamboo stem splitting, junction loosen, fastness is poor, and service life is short；In 3rd kind of mode, bamboo stem makes Tenon mouth, Making overall resistance to impact, shear resistance and anti-splitting ability reduce, safety is poor；In 4th kind of mode, in bamboo stem, use cement Steel beam column fixed by mortar, and due to bamboo stem diameter disunity, bamboo stem external diameter larynx hoop fastens, and prevents bamboo stem from moving with bolt or steel beam column Position makes bamboo stem cleave, but larynx band tightener can't resolve bamboo stem in axial push-pull intensity critical splitting problem.Perfusion in bamboo stem Being difficult to construction, the density of filling and construction period are difficult to control, and cause efficiency low, and workload is big.

Node structure, in order to change drawbacks described above, is improved by people, and the practicality such as Patent No. 2014201483705 is new Type patent discloses a kind of former bamboo and connects node, and it is based on cast steel hollow pipe connector, horizontal connector 12 that it stretches out, Vertically connector is sleeved in bamboo stem end, and then the bolt 3 by installing is fixed.In this structure, bolt passes bamboo stem, by Make cast steel hollow pipe and bamboo stem internal diameter vary in size gap in bamboo stem diameter disunity, the risk that bamboo stem cleaves the most easily occur, The position of horizontal connector and vertical connector is fixed, and can only use in specific bamboo structure.

And for example the patent of invention of Patent No. 2013104413850 discloses a kind of bamboo net shell hollow ball connecting joint welding steel inserted sheet Putting and installation method, one end of steel inserted sheet 2 is welded on hollow ball 1 by it, and the other end is fixed on bamboo stem part 3 by bolt 4 On.In this structure, although have employed pad 10 to avoid occurring partial pressing to destroy on bamboo stem part and threaded bolt contacts face, but certainly will Add operation during installation, and hollow ball makes with the fixed form welded of steel inserted sheet the maintenance in later stage become difficulty.

For another example the utility model patent of Patent No. 2014201475906 discloses a kind of former bamboo articulated joint, and it connects in former bamboo A circle zigzag bamboo cane 11 is made in the end of bar 1, is embedded in a circular cone 3, so in multiple zigzag bamboo canes of inward collapsible After be set with a taper tightening sleeve 4 outside the most multiple zigzag bamboo canes, screw 2 end passed in circular cone be positioned at taper and tighten up Set small end face is outside and nut 5 is installed in engagement, and nut pulls out bolt and drives circular cone and taper tightening sleeve to be pressed in closely Zigzag bamboo cane inside and outside, is consequently formed a firm node structure.This structure there is problems in that

1., from accompanying drawing 5,6, the upper end of circular cone is positioned at inside zigzag bamboo cane, and the upper end of zigzag bamboo cane is not pressed in In circular cone outer rim, simultaneously from accompanying drawing 7, taper tightening sleeve lower end is not completely covered zigzag bamboo cane lower end, and zigzag The external force that bamboo cane upper end stress point and zigzag bamboo cane lower end stress point are subject to the most well is dispersed in taper tightening sleeve and taper On block, make this easily go wrong at two, and circular cone is not fully contacted with zigzag bamboo cane, further results in zigzag bamboo , easily there is the phenomenon causing destroying at sawtooth bamboo cane inner edge because local pressure is excessive in bar inner edge unbalance stress；

2. being provided with T-shaped hole 30 due to circular cone 3, the bright mild steel hexagonal nuts of screw 2 embeds in T-shaped hole, and circular cone 3 is by one Circle zigzag bar 11 institute is enclosed within Saw blade 11 periphery around, tapered tightening sleeve 4 and is fastened by nut 5, and now screw can not Rotate, cause multiple former bamboo connecting rod to assemble inconvenience；

3. the screw of the multiple former bamboo connecting rod of said structure can only connect into three-D space structure by middleware, and each screw is worn Entering in a middleware institute drilling being made up of steel plate, then fixed by screw by locking nut, this connected mode may be only available for former bamboo In the structure that between connecting rod, angular transformation is little, i.e. it cannot use existing bolt sphere；

After the most former bamboo connecting rods are connected with middleware, the steel plate under the effect of axial stretching resistance and compressive resistance, in middleware There will be deformation, cause bigger change in displacement, make the overall structure after assembling loosen deformation；

5. circular cone is entity, and its weight is relatively big, adds the overall weight at node, causes the bamboo structure weight mistake after assembling Greatly.

In sum, there is various problem in structure of the prior art, cannot meet multinomial requirement in actual use, Significantly limit the use on a large scale of former bamboo building element, do not meet country's regulation in terms of environmental protection, energy-conservation, low-carbon (LC) etc..

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that rational in infrastructure, be easy to dismounting, uniform force and making By the one of life-span length former bamboo building element bolted spherical node attachment structure.

This utility model adopts the technical scheme that:

A kind of former bamboo building element bolted spherical node attachment structure, it is characterised in that: include bamboo stem, outer Taper Pipe and endosiphuncular tube, Multiple taper gear piece is made in bamboo stem end, and the plurality of taper gear piece is inwardly gathered and its inner rim is pressed in outside the endosiphuncular tube of its interior setting-in On edge, multiple conical tooth sheet outer rims are set with described outer Taper Pipe, the upper end outer rim that described endosiphuncular tube stretches out from outer Taper Pipe upper end Engagement suit one locknut, this locknut makes endosiphuncular tube and outer Taper Pipe the most closely be crimped on the inner edge of multiple taper gear piece with outer after tightening Edge, arranges a bolt in endosiphuncular tube stretches out the upper end of outer Taper Pipe upper end, and this bolt stretches out the end of endosiphuncular tube for connecting spiral shell Bolt ball.

And, the tapered outer side face of endosiphuncular tube topmost topmost flushes with taper gear piece inner edge, the tapered outer side face of endosiphuncular tube Upper end is positioned at above the top, taper gear piece inner edge or the tapered outer side face of endosiphuncular tube is topmost positioned at taper gear piece inner edge topmost Lower section；

Outer Taper Pipe tapered inner side surfaces bottom flushes with taper gear piece bottom, taper gear piece bottom is positioned at outer Taper Pipe conical inner side Below bottom, face or taper gear piece bottom is positioned at above outer Taper Pipe tapered inner side surfaces bottom.

And, the top of described outer Taper Pipe outer rim is positioned at taper gear piece top topmost, and the upper surface of outer Taper Pipe arranges one Packing ring, the endosiphuncular tube upper end outer margin side trap stretched out in the perforate in this packing ring fills described locknut.

And, described endosiphuncular tube upper end installs described bolt from inside to outside, and the nut of this bolt is limited in endosiphuncular tube upper end Portion, this bolt stretches out the outer rim upper limit of endosiphuncular tube upper end and is set with a nut cylinder, and this nut cylinder can drive bolt together at inner cone Pipe upper end rotates.

And, the screwed hole internal messing that described nut cylinder is made installs a jackscrew, and the end that this jackscrew stretches in nut cylinder is positioned at In the stopper slot that bolt outer rim is made along bolt axial direction, jackscrew and stopper slot make in bolt spacing cooperation in the radial direction Nut cylinder drives bolt radial rotating, and jackscrew and stopper slot guiding on bolt axial direction coordinates makes the same of bolt radial rotating Time move axially.

And, described stopper slot connects near the end of endosiphuncular tube upper end and makes a spacing hole, and this spacing hole degree of depth is more than described Stopper slot, spacing hole makes nut cylinder and bolt mutually lock after jackscrew is screwed into.

Advantage of the present utility model and good effect be:

In this utility model, the tapered outer side face of endosiphuncular tube is pressed in taper gear piece inner edge, and the tapered inner side surfaces of outer Taper Pipe is pressed in taper Gear piece outer rim, endosiphuncular tube and outer Taper Pipe are fully contacted with taper gear piece, it is ensured that external force can be distributed in total uniformly, Avoiding the damage interiorly or exteriorly of the excessive taper gear piece caused of local pressure in prior art, taper is stretched out in the upper end of endosiphuncular tube Passing outer Taper Pipe upper end after gear piece again, be then set with locknut in its outer rim, this locknut pulls out endosiphuncular tube and simultaneously when tightening Inwardly extrude outer Taper Pipe, owing to the angle of endosiphuncular tube and outer Taper Pipe is between 11～18 degree, clamping between endosiphuncular tube and outer Taper Pipe Forming self-locking after taper gear piece, endosiphuncular tube and outer Taper Pipe lighter in weight, make the lighter overall weight of rack, inner cone after assembling simultaneously Bolt is installed in pipe upper end, this bolt for connecting bolt ball, make overall structure more reasonable, in sum, solution of the present invention The defect of prior art of having determined, improves bonding strength, installation and removal of being more convenient for, and makes building of rack more convenient, maintenance Easier, it is adaptable to modern former bamboo structure house is built and used in the former Bamboo structural building of large-span space rack.

Accompanying drawing explanation

Fig. 1 is use view of the present utility model；

Fig. 2 is that the A-A of Fig. 1 is to profile；

Fig. 3 is the structural representation that bamboo stem end processes taper gear piece；

Fig. 4 is the structural representation after taper gear piece draws in；

Fig. 5 is the structural representation that bolt just starts to be screwed into bolt sphere；

Fig. 6 is the structural representation that bolt has been screwed into bolt sphere；

Fig. 7 is the structural representation that bolt is fully screwed into bolt sphere；

Fig. 8 this utility model is assembled into the partial structurtes schematic diagram after rack；

Fig. 9 is pull test curve of the present utility model；

Figure 10 is pressure test curve of the present utility model；

Figure 11 is the contrast block diagram between test and software simulation.

Detailed description of the invention

Below in conjunction with embodiment, further illustrating this utility model, following embodiment is illustrative, is not determinate, Protection domain of the present utility model can not be limited with following embodiment.

A kind of former bamboo building element bolted spherical node attachment structure, as shown in Fig. 1～11, innovation of the present utility model is: bag Including bamboo stem 1, outer Taper Pipe 2 and endosiphuncular tube 17, make multiple taper gear piece 20 in bamboo stem end, the plurality of taper gear piece inwardly gathers Hold together and its inner rim is pressed in the outer rim of its interior endosiphuncular tube being embedded in, multiple conical tooth sheet outer rims are set with described outer Taper Pipe, described The upper end 9 outer margin side trap that endosiphuncular tube stretches out from outer Taper Pipe upper end fills a locknut 4, and this locknut makes endosiphuncular tube and outer cone after tightening Pipe is the most closely crimped on inner edge and the outer rim of multiple taper gear piece, arranges one in endosiphuncular tube stretches out the upper end of outer Taper Pipe upper end Bolt 10, the outermost end of this bolt is for the screw 8 of connecting bolt ball 7.

In the present embodiment, taper gear piece is 8～12, bamboo stem a diameter of 60～135mm, and comparison form is shown in Table 1 and table 2:

Table 1: bamboo stem diameter and the comparison of taper gear piece quantity

Table 2: bamboo stem diameter and the comparison of bolted spherical node diameter

Be tapered outer side face below the outer rim of endosiphuncular tube, be arranged above cylindrical outer side surface, the tapered outer side face of endosiphuncular tube topmost 21 with Taper gear piece inner edge topmost flushes, the tapered outer side face of endosiphuncular tube be topmost positioned at taper gear piece inner edge topmost above or The tapered outer side face of Taper Pipe is topmost positioned at below the top, taper gear piece inner edge；Outer Taper Pipe tapered inner side surfaces bottom 19 and taper Gear piece bottom flushes, taper gear piece bottom is positioned at below outer Taper Pipe tapered inner side surfaces bottom or position, taper gear piece bottom Above outer Taper Pipe tapered inner side surfaces bottom.Fig. 2 understands, the top, tapered outer side face and the taper gear piece inner edge of endosiphuncular tube Topmost flushing, bottom, endosiphuncular tube tapered outer side face 18 is positioned at the top of bottom, taper gear piece inner edge；Outer Taper Pipe conical inner side Bottom, face flushes with taper gear piece bottom, and outer Taper Pipe tapered inner side surfaces is topmost positioned at above conical tooth sheet outer rim the top, Therebetween forming a cavity 13, the use of this cavity is: when rotating the locknut on endosiphuncular tube with instrument, make endosiphuncular tube and outer cone Pipe extruding taper gear piece also makes its lower thickness, makes endosiphuncular tube produce displacement, so flowing out certain cavity.

The upper surface in outside and outer Taper Pipe that the top of described outer Taper Pipe tapered side is positioned at taper gear piece the top arranges a packing ring 3, the endosiphuncular tube upper end 9 outer margin side trap stretched out in the perforate 22 in this packing ring fills described locknut.

Having cone-shaped inner hole 16 in described endosiphuncular tube tapered side, have Cylinder inner bore 15 in endosiphuncular tube cylindrical side, bolt is from cone After shape endoporus and Cylinder inner bore enter, passing from endosiphuncular tube upper end, the nut 14 of this bolt is limited in inside endosiphuncular tube upper end, This bolt stretches out the outer rim upper limit of endosiphuncular tube upper end and is set with a hex nut cylinder 6, the screw rod outer rim of bolt and endosiphuncular tube upper end The inner edge, hole in portion retains certain interval, makes hex nut cylinder that bolt can be driven together to rotate in endosiphuncular tube upper end and move up and down.

Preferably scheme is: screwed hole 12 internal messing made on described nut cylinder installs a jackscrew 5, and this jackscrew stretches into nut cylinder Interior end is positioned at the bolt outer rim stopper slot that para-position is made along bolt axial direction 23, jackscrew and stopper slot at bolt radially Spacing cooperation on direction makes nut cylinder drive bolt radial rotating, and jackscrew and the stopper slot guiding on bolt axial direction coordinates Move axially while making bolt radial rotating.It is spacing that the end connection near endosiphuncular tube upper end of the described stopper slot makes one Hole 11, this spacing hole degree of depth is more than described stopper slot, and spacing hole makes nut cylinder and bolt mutually lock after jackscrew is screwed into.

During bolt under tension, drive endosiphuncular tube by nut, and be ultimately applied on bamboo stem, when bolt is under pressure, hexagonal Nut cylinder extrudes outer Taper Pipe by locknut, and is ultimately applied on bamboo stem.

Use process of the present utility model is:

1. make the taper gear piece with interval 24 in bamboo stem end, then by taper gear piece inward collapsible during heat treatment；

2. adjust the position of endosiphuncular tube, make taper gear piece be pressed in its outer rim, and the tapered side of endosiphuncular tube topmost 21 and taper Gear piece inner edge topmost flushes；

3. it is set with outer Taper Pipe, makes outer Taper Pipe tapered side bottom flush with taper gear piece bottom, now in endosiphuncular tube upper end Outer rim set upper gasket, this packing ring is pressed on outer Taper Pipe upper surface, the most again endosiphuncular tube upper end engagement suit locknut, by endosiphuncular tube Pull out and inwardly extrude outer Taper Pipe；

4. in the pre-packed bolt outer rim of endosiphuncular tube upper end, it is set with hex nut cylinder, at screwed hole, is then screwed into jackscrew, makes Its end enters stopper slot (Fig. 5,6 shown in)；

5. turn hex nut cylinder with instrument, in making the bolt outermost end screw 8 being engaged on bolt sphere 7 as shown in Figure 5, Jackscrew makes hex nut cylinder drive bolt synchronous to rotate, and while bolt radial rotating, jackscrew plays the effect of guiding, makes spiral shell Bolt axially moves, and is the most gradually screwed in bolt sphere (shown in Fig. 6)；

6. after bolt is tightened in screw, by jackscrew being screwed in spacing hole, by mutual to hex nut cylinder and bolt as shown in Figure 7 Locking；

Structure to the present embodiment carries out the test of pulling force and pressure, and its result is shown in Fig. 9 and Figure 10, specifically:

Pull test: temperature 22 degree, selecting bamboo is 5 years setation bamboos, bamboo diameter 107mm, bamboo length 1040mm, examination Testing machine is З И М-Г М С 50 т (Russia's tensile testing machine).

Pressure test: temperature 23 degree, selecting bamboo is 5 years setation bamboos, bamboo diameter 105mm, bamboo length 700mm, examination Testing machine is INSTRON 5989.

As shown in Figure 9, working tension is 27.6 tons (through being scaled 270.5kN), under this pulling force effect, bamboo overall and There is not breakoff phenomenon in inside and outside Taper Pipe, and node entirety development length is 57 millimeters, is far smaller than the development length of prior art, And the endosiphuncular tube at bamboo stem two ends, taper gear piece and outer Taper Pipe stable connection.

As shown in Figure 10, under the pressure effect of 173.5kN, node reduced overall length is less than 3 millimeters, is far smaller than existing There is a reduction length of technology, and the endosiphuncular tube at bamboo stem both ends, taper gear piece and outer Taper Pipe stable connection.

Use ANSYS software to be simulated, field survey simultaneously, the two relatively see Figure 11, specifically:

In Figure 11, the block diagram of label 1: node pressure limit stress, the block diagram of label 2: node pulling force limit stress, The block diagram of label 3: node pressure bursting stress, the block diagram of label 4: node tensile failure stress.

In the block diagram of each label, above for field survey numerical value, it is positioned at the numerical value for software simulation of lower section, can Know that the numerical value of field survey is greater than the numerical value of software simulation, it is seen that various performance parameters when the present embodiment is actually used is unusual Outstanding.

From above-mentioned data, the attachment structure of the present embodiment is firm, safety, and various performance parameters is outstanding.Multiple bamboo stem such as figure Being arranged in bolt sphere shown in 1, progressively installs bamboo stem, finally can be assembled into three dimensions unit truss knot as shown in Figure 8 Structure, then large span space rack bamboo structure can be built into by the connection of unit.Through software analysis, bamboo space net rack Structure is when the span of 12 × 12 meters, and in the case of in unit, bamboo stem is 2 meters, in software analysis structure, bamboo stem maximum weighted is 65.7kN.And this novel joint is far longer than the result of software analysis, so the present embodiment uses in simple building structure framework Or all show outstanding when using in the building structure frame of large span, filled up blank both domestic and external.

In this utility model, the tapered outer side face of endosiphuncular tube is pressed in taper gear piece inner edge, and the tapered inner side surfaces of outer Taper Pipe is pressed in taper Gear piece outer rim, endosiphuncular tube and outer Taper Pipe are fully contacted with taper gear piece, it is ensured that external force can be distributed in total uniformly, Avoiding the damage interiorly or exteriorly of the excessive taper gear piece caused of local pressure in prior art, taper is stretched out in the upper end of endosiphuncular tube Passing outer Taper Pipe upper end after gear piece again, be then set with locknut in its outer rim, this locknut pulls out endosiphuncular tube and simultaneously when tightening Inwardly extrude outer Taper Pipe, owing to the angle of endosiphuncular tube and outer Taper Pipe is between 11～18 degree, clamping between endosiphuncular tube and outer Taper Pipe Forming self-locking after taper gear piece, endosiphuncular tube and outer Taper Pipe lighter in weight, make the lighter overall weight of rack, inner cone after assembling simultaneously Bolt is installed in pipe upper end, this bolt for connecting bolt ball, make overall structure more reasonable, in sum, solution of the present invention The defect of prior art of having determined, improves bonding strength, installation and removal of being more convenient for, and makes building of rack more convenient, maintenance Easier, it is adaptable to modern former bamboo structure house is built and used in the former Bamboo structural building of large-span space rack.

Claims (6)

1. a former bamboo building element bolted spherical node attachment structure, it is characterised in that: include bamboo stem, outer Taper Pipe and endosiphuncular tube, Multiple taper gear piece is made in the end of bamboo stem, and multiple taper gear pieces are inwardly gathered and its inner rim is pressed in outside the endosiphuncular tube of its interior setting-in On edge, multiple conical tooth sheet outer rims are set with described outer Taper Pipe, the upper end outer rim that described endosiphuncular tube stretches out from outer Taper Pipe upper end Engagement suit one locknut, this locknut makes endosiphuncular tube and outer Taper Pipe the most closely be crimped on the inner edge of multiple taper gear piece with outer after tightening Edge, arranges a bolt in endosiphuncular tube stretches out the upper end of outer Taper Pipe upper end, and this bolt stretches out the end of endosiphuncular tube for connecting spiral shell Bolt ball.

One the most according to claim 1 former bamboo building element bolted spherical node attachment structure, it is characterised in that: endosiphuncular tube Tapered outer side face topmost topmost flush with taper gear piece inner edge, the tapered outer side face of endosiphuncular tube is topmost positioned at taper gear piece Inner edge topmost above or the tapered outer side face of endosiphuncular tube be topmost positioned at taper gear piece inner edge topmost below；

Outer Taper Pipe tapered inner side surfaces bottom flushes with taper gear piece bottom, taper gear piece bottom is positioned at outer Taper Pipe conical inner side Below bottom, face or taper gear piece bottom is positioned at above outer Taper Pipe tapered inner side surfaces bottom.

One the most according to claim 2 former bamboo building element bolted spherical node attachment structure, it is characterised in that: outside described The upper surface of top and outer Taper Pipe that the top of Taper Pipe outer rim is positioned at taper gear piece the top arranges a packing ring, opening in this packing ring The endosiphuncular tube upper end outer margin side trap stretched out in hole fills described locknut.

One the most according to claim 3 former bamboo building element bolted spherical node attachment structure, it is characterised in that: in described Taper Pipe upper end installs described bolt from inside to outside, and the nut of this bolt is limited in inside endosiphuncular tube upper end, in this bolt stretches out The outer rim upper limit of Taper Pipe upper end is set with a nut cylinder, and this nut cylinder can drive bolt together to rotate in endosiphuncular tube upper end.

One the most according to claim 4 former bamboo building element bolted spherical node attachment structure, it is characterised in that: described spiral shell The screwed hole internal messing made in master cylinder installs a jackscrew, and this jackscrew stretches into the end in nut cylinder and is positioned at bolt outer rim along bolt axle In the stopper slot that para-position is made on direction, jackscrew and stopper slot make nut cylinder drive spiral shell in bolt spacing cooperation in the radial direction The guiding cooperation on bolt axial direction of bolt radial rotating, jackscrew and stopper slot is axially transported while making bolt radial rotating Dynamic.

One the most according to claim 5 former bamboo building element bolted spherical node attachment structure, it is characterised in that: described limit Position groove connects near the end of endosiphuncular tube upper end and makes a spacing hole, and this spacing hole degree of depth is more than described stopper slot, and spacing hole is used Nut cylinder and bolt is made mutually to lock after jackscrew is screwed into.