CN205935232U - From trompil self tapping shear connector - Google Patents
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- CN205935232U CN205935232U CN201620911647.4U CN201620911647U CN205935232U CN 205935232 U CN205935232 U CN 205935232U CN 201620911647 U CN201620911647 U CN 201620911647U CN 205935232 U CN205935232 U CN 205935232U
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- self tapping
- shear connector
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Abstract
The utility model discloses a from trompil self tapping shear connector, this from trompil self tapping shear connector will glue timber beams and the light aggregate concrete pterygoid lamina is put together, from trompil self tapping shear connector includes the drill bit, stores up bits groove, screw thread, spacing festival, nail pole and hexagon head, the nail pole divide into smooth section and screw thread section, and smooth section is pour in light aggregate concrete pterygoid lamina bottom surface, and the screw thread section is followed closely and is glued in the timber beams top surface, it can be in the spacing festival that imbeds the control shear connector embedding timber degree of depth under the angle wantonly to be equipped with between smooth section and the screw section. The utility model discloses from trompil self tapping shear connector can be applied to in the view building, bridge isotructure at housing construction's floor and roofing and gardens scenic spot.
Description
Technical field
This utility model is related to a kind of building structural element and in particular to one kind is from perforate self tapping shear connector, can answer
It is connected with the interlaminar shear of concrete for timber, belong to building structure technology field.
Background technology
, compared to other construction materials, high anisotropy, bearing capacity is relatively low for timber, and fire-resistance capacity is poor, and exists more
The knaur of natural defect, such as wherein distribution substantially reduces the intensity of timber, log easily occur rotten, become normal complexion and damage by worms.Using wood
Material cannot overcome above-mentioned drawback as traditional timber buildings of unique load-bearing material, leads to timber buildings intensity and toughness relatively
Low, fire-resistance poor reliability.When timber buildings standard width of a room in an old-style house depth, load generally require the structure cloth using close post deep beam when larger
Office, this all makes the popularization of traditional timber buildings be extremely restricted.
Reinforced concrete structure is a kind of modern times most commonly seen building structure.However, reinforced concrete structure material
Density and sectional dimension are larger, lead to dead load big, and figure is heavy to be wanted it is impossible to reach high-strength light building with a slim and graceful figure
Ask.And, concrete material tensile strength is low, it is generally work with cracking in structure tensile region, although the presence in crack is not
Necessarily mean that structure is destroyed, but it affects the durability of structure and attractive in appearance.When crack quantity is more and carries out wider
When, also will give people to cause a kind of insecurity.
Laminated wood-light aggregate concrete composite beams are that timber is cut by one kind with armored concrete bi-material service-strong
Power connector carries out efficient combination, improves the new builing structure form of mechanical property.It has make full use of concrete anti-compression,
Timber tensile property, reduce dead load and improve specific strength, greatly improve the notable superiority of structure fire-resistant performance.
In bearing load, beam slab interface can produce longitudinal shear it is necessary to pass through to laminated wood-light aggregate concrete composite beams
Connector transmits, and otherwise glued wooden frame cannot cooperation with lightweight aggregate concrete wing plate.Therefore, using reliable Shear connection
Part, by glued wooden frame and the mutual effectively connection of lightweight aggregate concrete wing plate, is that laminated wood-light aggregate concrete composite beams realize group
The critical component of cooperation.
However, currently both at home and abroad iron nail class connector shearing strength, rigidity generally relatively low it is impossible to ensure reliable group cooperation
With；Although sheet metal connector shearing strength with holes is higher but ductility is poor；Common tapping screw, as connector, is made in construction
Pre-punched guiding is required, to prevent timber extruding cracking destruction during industry.Make a general survey of currently existing all kinds of wood-coagulation local soil type both at home and abroad
Close beam connection, take into account shearing strength, ductility, the shear connector product of convenience for construction three aspect not yet occur.
Laminated wood-light aggregate concrete composite beams have as a kind of New type weight loading structure that lightweight, the ratio of strength to weight is high, elastic
Good, impact resistance, glued wooden frame texture rich palette are attractive in appearance, and the advantages of handling ease, its application prospect in engineering is extensive.So
And lack suitable shear connector and seriously constrain wooden concrete combination beam in the application of China and popularization.
Chinese Patent No. " 201020668589.X " number discloses a kind of reinforced concrete-wood composite beam.Its main points be
A series of transverse concave grooves are had on wooden frame, vertically fixes steel rod elements in groove, wooden frame and its groove cover a layer concrete and pours
Build layer, in concrete lift, be also embedded with the tension reinforcement with the vertical consistency of beam.This kind of combination beam is to traditional wooden frame
Improve with one kind of reinforced beam, but due to needing in work progress a series of transverse concave grooves are had on wooden frame, can be right
Wooden frame effective cross-section is significantly weakened, and reduces combination beam bearing capacity, and remains a need for arranging steel rod elements after grooving, and construction is non-
Often complicated.
Utility model content
The purpose of this utility model is for deficiencies of the prior art, provides one kind from perforate self tapping shearing even
Fitting.
The technical solution adopted in the utility model is：One kind, should be from perforate self tapping shearing from perforate self tapping shear connector
Glued wooden frame and lightweight aggregate concrete wing plate are combined by connector；
Described include drill bit, nail collection slot, screw thread, spacing section, nail rod and turret head from perforate self tapping shear connector；
Described nail rod is divided into smooth section and thread segment, and smooth section is cast in lightweight aggregate concrete wing plate bottom surface, thread segment
Hammer in laminated wood top surface of the beam；It is provided between smooth section and thread segment and shear connector can be controlled embedding under arbitrarily embedded angle
Enter the spacing section of laminated wood beam depth；
Described thread segment is provided with and for input torque to switch to the screw thread that screw is fed power, and thread segment end is provided with end face gold
Genus sharp edge cuts the wood fiber and with perforate and guides nail rod to shoot the drill bit of glued wooden frame；
Described thread segment end is additionally provided with the nail collection slot for piling up compacting wood fiber chip；
Described smooth section end is provided with the turret head for connecting electric wrench, and turret head is cast in the lightweight aggregate concrete wing
Resistance to plucking anchorage effect is played in plate.
Preferably, described gluing wooden frame be made using log or laminated wood, laminated wood back portion without prebored hole,
Connector hammers in glued wooden frame.
Preferably, described lightweight aggregate concrete wing plate can be ball-shaped lightweight aggregate concrete, broken stone type lightweight aggregate
Concrete or full lightweight concrete.
Preferably, described from perforate self tapping shear connector embedded mode can be and laminated wood-lightweight aggregate concrete
Interface is vertically embedded into it is also possible to be embedded with above-mentioned interface oblique.
Preferably, described can longitudinal arranged in rows or single setting from perforate self tapping shear connector.
Preferably, transverse steel, longitudinal reinforcement can be configured in described lightweight aggregate concrete wing plate according to actual needs.
Preferably, between described lightweight aggregate concrete wing plate bottom surface and laminated wood top surface of the beam can with selectivity lay wood every
Plate.
Preferably, described is that the high-strength alloy screw-making class such as carbon steel, aluminium alloy connects from perforate self tapping shear connector
Part.
Preferably, described from perforate self tapping shear connector drill bit form be the form such as straight-flute drill, fluted drill, chit drill.
The above-mentioned construction method from perforate self tapping shear connector, comprises the following steps：
(1) log or laminated wood are manufactured glued wooden frame, be machined to advise by glued wooden frame with cutting, planing equipment
Sizing；
(2) laminated wood top surface of the beam is laid timber partition as needed and is done surface damp-proof treatment, in glued wooden frame and timber partition
Top surface labelling connector position；
(3) will clamp from perforate self tapping shear connector bar portion using fixture, sleeve is inserted in from perforate self tapping Shear connection
Part turret head, makes to overlap from perforate self tapping shear connector, fixture, sleeve center of rotation；
(4) sleeve is connected with electric wrench power transmission shaft；
(5) harmonize from perforate self tapping shear connector axis with laminated wood top surface of the beam angle to design angle；
(6) open electric wrench switch, sleeve inputs moment of torsion from perforate self tapping shear connector；
(7) by cutting timber perforate from perforate self tapping shear connector end-bit；
(8) tapping screw thread, by input torsion being switched to forward thrust with the extruding of screw thread hole wall, voluntarily attacks forward brill；
(9) treat to shoot projected depth from perforate self tapping shear connector, spacing section ledge is extruded with perforate face,
After embedded timber, resistance is increased dramatically, and voluntarily stops attacking brill from perforate self tapping shear connector；
(10) glued wooden frame is lifted into intercolumniation, using steel fill plate bolt connection anchorage node；
(11) lay timber partition, template, distribution bar, pump lightweight aggregate concrete, complete lightweight aggregate concrete wing plate and pour
Build；
(12) maintenance lightweight aggregate concrete, treats that intensity reaches corresponding requirements, form removal simultaneously continues maintenance.
This utility model is saved as boundary from perforate self tapping shear connector with spacing, and both sides are cast in lightweight aggregate coagulation respectively
Native wing plate plate bottom and being anchored in laminated wood top surface of the beam.Using from perforate self tapping shear connector be lightweight aggregate concrete wing plate
It is capable of the critical material of collaborative work with glued wooden frame.During load-bearing, glued wooden frame and lightweight aggregate concrete wing plate are from perforate certainly
Attack common stress under the compound action of shear connector.When mixed using the laminated wood-lightweight aggregate from perforate self tapping shear connector
Solidifying soil combination beam hold lotus to a certain extent when, bend from perforate self tapping shear connector, detrusion, wood-coagulation pedosphere
Relative sliding phenomenon in face.Continue to increase with load, shear connector deformation increases, and interface sliding quickly increases, combination
Beam rigidity reduces and amount of deflection dramatically increases, and final combination beam occurs ductile fracture.
This utility model cuts and destroys lumber fibre by connector input torque is made with screw rod end straight-flute drill, and wood is fine
Dimension chip imports nail collection slot with drill bit bearing of trend and piles up densification, and screw rod is voluntarily shot timber and formed mechanical snap by screw thread
Power, until spacing section and laminated wood top surface of the beam contact squeeze, shear connector cannot continue to creep into.From perforate self tapping Shear connection
Part can arrange spacing section, nail collection slot position and length according to practical situation selectivity.This from perforate self tapping shear connector
Have can under inputting the effect of little moment of torsion self tapping from perforate, ductility is good, impact resistance, weatherability is good and shearing strength is big feature,
Can guarantee that lightweight aggregate concrete wing plate and glued wooden frame interface form reliable compound action, make bi-material cooperation, fill
Performance is waved in distribution.This deform under relatively low stress level from perforate self tapping shear connector less, with interface upper stress
Increase, shear connector draw cut, flexural deformation, lightweight aggregate concrete wing plate starts increase with glued wooden frame interface sliding,
But novel connector still can effectively transmit interface shear stress when drawing and cutting with flexural deformation, there is provided larger sliding
Rigidity, shear-carrying capacity.
This utility model can be applicable to flooring and roofing and the Landscape of building construction from perforate self tapping shear connector
In the structures such as the Landscape Architecture in area, bridge.
The beneficial effects of the utility model：
(1) from perforate self tapping shear connector, there is simple structure, easy construction, the reliable feature of mechanical property.
(2) compared with traditional wood screw, it is to set up straight-flute drill from the main construction difference of perforate self tapping shear connector
Head, nail collection slot and spacing section.Straight fluted drill, nail collection slot and spacing merism are simple, easy to process, from perforate self tapping Shear connection
Part process technology difficulty does not have marked difference with traditional wood screw.Production unit is on existing technology, equipment, human resourcess basis
On slightly adjust and just can produce in enormous quantities from perforate self tapping shear connector specification part.
(3) greatly improve efficiency of construction from perforate self tapping shear connector.Conventional screw connector is necessary in construction
On the premise of laminated wood top surface of the beam pre-drilled cavity could will not cause cracking ensureing timber because hole wall extruding force is excessive, with
Predetermined angular build-in is in timber.In practice of construction, due to needing to ensure that laminated wood-light aggregate concrete composite beams reach rule
Fixed shear connection degree, every laminated wood top surface of the beam generally requires beats dozens of bullport, then pierces screw.This construction party
Formula need workmen the division of labor substep complete, not only workload is huge, and due to when combination beam is constructed work surface extremely narrow and small, give
Equipment is marched into the arena and personnel's construction causes very big difficulty.Using from perforate self tapping shear connector, only will need to be connected with electric wrench
Fitting bit head bit alignment point position, starts electric wrench and can cut timber, nail collection slot guiding compression wood flour by drill bit, screw thread is certainly
Attack feed, be drilled into projected depth spacing section restriction connector and be excessively embedded.Using can will be former from perforate self tapping shear connector
Come connector multistep construction be reduced to one step construction put in place, substantially increase efficiency of construction, saved construction cost.
(4) novel connector straight fluted drill has concurrently and cuts perforate, the effect of guiding compression chip.The wood fiber is in relatively low pressure
Power and power of splitting act on the lower fragility tear failure that can occur along machine direction, and this destruction macro manifestations are in laminated wood top surface of the beam
Squeeze into and unexpected and violent cracking phenomena can occur during common pin.But, as long as after the wood fiber cuts and crushes, its chip is again
There is very strong compressibility, novel connector makes full use of this characteristic of timber, once-through operation can achieve that the wood fiber is cut
Cut through broken, concentrate pile up, the function of compacted compacting.
(5) close with traditional wood screw from the mechanical model of perforate self tapping shear connector, this makes existing analysis wood snail
The computational methods of nail stress performance can be able to be continuing with from perforate self tapping shear connector.And from perforate self tapping shearing
The shearing resistance that the spacing section part of connector as the reinforcement of putting more energy on wood-concrete interface, can improve connector further carries
Power and rigidity.
(6) laminated wood-light aggregate concrete composite beams take full advantage of timber tensile strength height and concrete crushing strength
Big feature, by the compound action from perforate self tapping shear connector, bi-material can effective cooperation.Beam is in load-bearing
When, glued wooden frame and the common stress of concrete combination beam, when load reaches certain value, shear connector is drawn to cut and bend
Effect deforms, but because the ductility of screw class connector is preferable, remains able to provide enough rigidity after connecting member deformation
With shear-carrying capacity it is ensured that combination beam can continue to carry.When withstanding shocks load, due to employing flexible connecting member, even
The deformation wear of fitting impact energy, the cracking of lightweight aggregate concrete wing plate and glued wooden frame fiber can be restricted, light bone
The cracking of material concrete flange plate is not result in the overall inefficacy of beam.
(7) grain of wood rich palette, has a natural aesthetic property, the use of timber make structure obtain a kind of slim and graceful it
Sense, has the laminated wood-light aggregate concrete composite beams of aesthetic property and practicality concurrently, is the preferable structural elements of modern architecture.
(8) laminated wood-light aggregate concrete composite beams deadweight is relatively light, and simple production process is easily installed and transports.
(9) employ laminated wood in laminated wood-light aggregate concrete composite beams, compared with traditional timber, its intensity is big,
Even structure, internal stress is little, not easy to crack and buckling deformation, and refractory ability is strong.
Brief description
Fig. 1 is this utility model from perforate self tapping shear connector structure schematic diagram；
Fig. 2 be this utility model from perforate self tapping shear connector be vertically embedded into when the combination of laminated wood-lightweight aggregate concrete
Beam cross-sectional view；
Fig. 3 is the side view of Fig. 2；
Fig. 4 is the axonometric chart of Fig. 2；
Fig. 5 be this utility model from perforate self tapping shear connector oblique embed when the combination of laminated wood-lightweight aggregate concrete
Beam cross-sectional view；
Fig. 6 is the side view of Fig. 5；
Fig. 7 is the axonometric chart of Fig. 5；
Fig. 8 is configuration transverse steel, longitudinal reinforcement, the laminated wood-light aggregate concrete composite beams cross section of timber partition show
It is intended to.
Specific embodiment
With reference to the accompanying drawings and detailed description this utility model is described further.
As shown in figures 1-8, a kind of from perforate self tapping shear connector, should be from perforate self tapping shear connector 1 by laminated wood
Beam 2 and lightweight aggregate concrete wing plate 3 are combined；
Described include drill bit 4, nail collection slot 5, screw thread 6, spacing section 7, nail rod 8 and hexagonal from perforate self tapping shear connector 1
9；
Described nail rod 8 is divided into smooth section and thread segment, and smooth section is cast in lightweight aggregate concrete wing plate 3 bottom surface, screw thread
Section hammers in glued wooden frame 2 top surface；It is provided between smooth section and thread segment and can control Shear connection under arbitrarily embedded angle
Part embeds the spacing section 7 of gluing wooden frame 2 depth；
Described thread segment is provided with and for input torque to switch to the screw thread 6 that screw is fed power, and thread segment end is provided with uses end face
Metal sharp edge cuts the wood fiber and with perforate and guides nail rod to shoot the drill bit 4 of glued wooden frame 2；
Described thread segment end is additionally provided with the nail collection slot 5 for piling up compacting wood fiber chip；
Described smooth section end is provided with the turret head 9 for connecting electric wrench, and turret head 9 is cast in lightweight aggregate concrete
Resistance to plucking anchorage effect is played in wing plate 3.
In this utility model from perforate self tapping shear connector 1 at glued wooden frame 2 top surface and lightweight aggregate concrete wing plate 3 bottom
Between face.Glued wooden frame is located at bottom, mainly undertakes pulling force；Lightweight aggregate concrete wing plate is located at top, mainly undertakes pressure；Two
Person passes through closely coupled from perforate self tapping shear connector.Using from perforate self tapping shear connector be the lightweight aggregate concrete wing
Plate is capable of the critical component of collaborative work with glued wooden frame, is mainly used to bear between glued wooden frame and lightweight aggregate concrete wing plate
Longitudinal shear, may also operate as resisting and start effect between lightweight aggregate concrete wing plate and glued wooden frame.Combination beam load-bearing
When, glued wooden frame and the common stress of lightweight aggregate concrete wing plate, when load reaches to a certain degree, glued wooden frame bottom fiber is subject to
Pull open bad, but due to lightweight aggregate concrete wing plate under the compound action of shear connector common stress, in section and shaft position
Upper shifting, laminated wood lower flange of girder fibrae marginatae tensile failure postpones, and the bearing capacity of whole laminated wood-light aggregate concrete composite beams is able to
Significantly improve.
Described from perforate self tapping shear connector 1 be a kind of employing carbon steel or other alloys from perforate tapping screw
Class shear connector.This shear connector has from perforate self tapping under less moment of torsion, ductility is good, impact resistance, weatherability are good and
The big feature of shearing strength, can guarantee that lightweight aggregate concrete wing plate and glued wooden frame interface form reliable compound action, is allowed to altogether
With work.This connector deforms less, with the increase of interface upper stress, shear connector generation under relatively low stress level
Draw cut, flexural deformation, lightweight aggregate concrete wing plate and glued wooden frame interface sliding start to increase, but shear connector is occurring
Draw and cut and during flexural deformation, still can transmit interface shear stress, there is provided larger sliding rigidity, shear-carrying capacity.
Described can be to be vertically embedded into wood-concrete interface from perforate self tapping shear connector 1 embedded mode, also may be used
To embed with above-mentioned interface oblique.According to the design requirement of laminated wood-light aggregate concrete composite beams shear connection degree, from perforate
Self tapping shear connector can longitudinal arranged in rows or single setting, vertically and horizontally spacing, the size of connector, material parameter
It is adjusted flexibly as needed and design.
Described glued wooden frame 2 can be with log as primary raw material, using high-performance environmentally-friendly type adhesive, using existing
The laminated wood gluing wooden frame made for wood processing technique or the glued wooden frame of log machine-shaping.Glued wooden frame 2
Version, size and the big I of material parameter are adjusted flexibly as needed and design.
Described lightweight aggregate concrete wing plate 3 can be ball-shaped lightweight aggregate concrete, broken stone type lightweight aggregate concrete,
It can be full lightweight concrete.Transverse steel 10 and longitudinal reinforcement 11 can be configured according to applying working condition.
Timber partition 12 can be laid forever with selectivity between lightweight aggregate concrete wing plate 3 bottom surface and glued wooden frame 2 top surface
The effect of the exchange of moisture between template, isolation concrete and timber long, and increase decoration function.Strength grade of concrete, thickness
The changing factors such as degree, effective calculating width can be adjusted flexibly as needed and design.
The above-mentioned construction method from perforate self tapping shear connector, comprises the following steps：
(1) log or laminated wood are manufactured glued wooden frame, be machined to advise by glued wooden frame with cutting, planing equipment
Sizing；
(2) laminated wood top surface of the beam is laid timber partition as needed and is done surface damp-proof treatment, in glued wooden frame and timber partition
Top surface labelling connector position；
(3) will clamp from perforate self tapping shear connector bar portion using fixture, sleeve is inserted in from perforate self tapping Shear connection
Part turret head, makes to overlap from perforate self tapping shear connector, fixture, sleeve center of rotation；
(4) sleeve is connected with electric wrench power transmission shaft；
(5) harmonize from perforate self tapping shear connector axis with laminated wood top surface of the beam angle to design angle；
(6) open electric wrench switch, sleeve inputs moment of torsion from perforate self tapping shear connector；
(7) by cutting timber perforate from perforate self tapping shear connector end-bit；
(8) tapping screw thread, by input torsion being switched to forward thrust with the extruding of screw thread hole wall, voluntarily attacks forward brill；
(9) treat to shoot projected depth from perforate self tapping shear connector, spacing section ledge is extruded with perforate face,
After embedded timber, resistance is increased dramatically, and voluntarily stops attacking brill from perforate self tapping shear connector；
(10) glued wooden frame is lifted into intercolumniation, using steel fill plate bolt connection anchorage node；
(11) lay timber partition, template, distribution bar, pump lightweight aggregate concrete, complete lightweight aggregate concrete wing plate and pour
Build；
(12) maintenance lightweight aggregate concrete, treats that intensity reaches corresponding requirements, form removal simultaneously continues maintenance.
Above in association with accompanying drawing, embodiment of the present utility model is described in detail, but this utility model is not limited to institute
The embodiment of description.For those of ordinary skill in the art, in the scope of principle of the present utility model and technological thought
Interior, multiple changes, modification, replacement and deformation are carried out to these embodiments and still falls within protection domain of the present utility model.
Claims (9)
1. one kind from perforate self tapping shear connector it is characterised in that：Should from perforate self tapping shear connector by glued wooden frame and
Lightweight aggregate concrete wing plate is combined；
Described include drill bit, nail collection slot, screw thread, spacing section, nail rod and turret head from perforate self tapping shear connector；
Described nail rod is divided into smooth section and thread segment, and smooth section is cast in lightweight aggregate concrete wing plate bottom surface, and thread segment hammers into
To in laminated wood top surface of the beam；It is provided between smooth section and thread segment and shear connector can be controlled to embed glue under arbitrarily embedded angle
Close the spacing section of wooden frame depth；
Described thread segment is provided with and for input torque to switch to the screw thread that screw is fed power, and thread segment end is provided with sharp with end plane metal
With perforate and nail rod is guided to shoot the drill bit of glued wooden frame while cutting the wood fiber；
Described thread segment end is additionally provided with the nail collection slot for piling up compacting wood fiber chip；
Described smooth section end is provided with the turret head for connecting electric wrench, and turret head is cast in lightweight aggregate concrete wing plate
Play resistance to plucking anchorage effect.
2. according to claim 1 a kind of from perforate self tapping shear connector it is characterised in that：Described gluing wooden frame adopts
Log or laminated wood are made.
3. according to claim 1 a kind of from perforate self tapping shear connector it is characterised in that：Described lightweight aggregate coagulation
Native wing plate is ball-shaped lightweight aggregate concrete, broken stone type lightweight aggregate concrete or full lightweight concrete.
4. according to claim 1 a kind of from perforate self tapping shear connector it is characterised in that：Described cut from perforate self tapping
Power connector embedded mode is to be vertically embedded into laminated wood-lightweight aggregate concrete interface, or embeds with above-mentioned interface oblique.
5. according to claim 1 a kind of from perforate self tapping shear connector it is characterised in that：Described cut from perforate self tapping
Power connector is longitudinal arranged in rows or single setting.
6. according to claim 1 a kind of from perforate self tapping shear connector it is characterised in that：Described lightweight aggregate concrete
Configuration transverse steel and longitudinal reinforcement in wing plate.
7. according to claim 1 a kind of from perforate self tapping shear connector it is characterised in that：Described lightweight aggregate concrete
Timber partition is laid between wing plate bottom surface and laminated wood top surface of the beam.
8. according to claim 1 a kind of from perforate self tapping shear connector it is characterised in that：Described cut from perforate self tapping
Power connector is carbon steel or aluminium alloy screw class connector.
9. according to claim 1 a kind of from perforate self tapping shear connector it is characterised in that：Described cut from perforate self tapping
Power connector drill bit form is straight-flute drill, fluted drill or chit drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620911647.4U CN205935232U (en) | 2016-08-19 | 2016-08-19 | From trompil self tapping shear connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620911647.4U CN205935232U (en) | 2016-08-19 | 2016-08-19 | From trompil self tapping shear connector |
Publications (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869801A (en) * | 2017-03-22 | 2017-06-20 | 杭州富阳鸿祥技术服务有限公司 | A kind of drilling bit for municipal public engineering |
| CN108888312A (en) * | 2018-06-21 | 2018-11-27 | 中国人民解放军第二军医大学第二附属医院 | Orthopedic section of bone plate system of one kind and operating method |
| CN109972736A (en) * | 2019-05-07 | 2019-07-05 | 南京林业大学 | A kind of bamboo-the concrete combined structure and manufacturing method of adhesive type connection |
-
2016
- 2016-08-19 CN CN201620911647.4U patent/CN205935232U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869801A (en) * | 2017-03-22 | 2017-06-20 | 杭州富阳鸿祥技术服务有限公司 | A kind of drilling bit for municipal public engineering |
| CN106869801B (en) * | 2017-03-22 | 2018-10-19 | 杭州富阳鸿祥技术服务有限公司 | A kind of drilling bit for municipal public engineering |
| CN108888312A (en) * | 2018-06-21 | 2018-11-27 | 中国人民解放军第二军医大学第二附属医院 | Orthopedic section of bone plate system of one kind and operating method |
| CN109972736A (en) * | 2019-05-07 | 2019-07-05 | 南京林业大学 | A kind of bamboo-the concrete combined structure and manufacturing method of adhesive type connection |
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