CN206189891U - Existing building reinforcement is from load -bearing and insulating integration system - Google Patents
Existing building reinforcement is from load -bearing and insulating integration system Download PDFInfo
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- CN206189891U CN206189891U CN201621237661.7U CN201621237661U CN206189891U CN 206189891 U CN206189891 U CN 206189891U CN 201621237661 U CN201621237661 U CN 201621237661U CN 206189891 U CN206189891 U CN 206189891U
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Abstract
The utility model discloses an existing building reinforcement is from load -bearing and insulating integration system belongs to the building field, including frame -type reinforced structure and heat preservation wallboard, the key lies in: in the frame -type reinforced structure including fix at the vertical reinforcement angle steel in existing building peripheral outer wall bight, fix at existing building outer wall and lie in the vertical reinforcement shaped steel post of wall juncture with great ease and set up in existing building outer wall floor department and connect vertical reinforcement angle steel and vertical reinforcement shaped steel cylindricality becomes to pack unit frame's horizontal bracket rib, the heat preservation wallboard is filled in filling unit frame. The utility model discloses an useful technological effect is: the utility model discloses reached to the reinforcement of existing building and in the reinforced structure installation heat preservation wallboard realize the heat preservation wallboard from bearing body, both consolidated the existing building, the heat preservation wallboard increases load also for existing building, realizes consolidating the integration from load -bearing and insulating, the heat preservation effect can reach 60%~75% and do not produce cold bridge.
Description
Technical field
The utility model belongs to building field, and in particular to a kind of to the transformation of existing building external wall energy-saving and existing building
The existing building that reinforcing is combined as a whole reinforces self-supporting heat-insulating integral system.
Background technology
At present, China's existing building total amount is about 50,000,000,000 square metres, and wherein town-property is about 27,000,000,000 square metres, public
Building and industrial building are about 23,000,000,000 square metres.About 50 ~ 10,000,000,000 square metres that the implementation of 50% energy conservation standard has been pressed in house,
Need about 170 ~ 20,000,000,000 square metres of transformation.Analyze according to statistics, constructing operation energy consumption accounts for 25% or so of national total energy consumption, builds
High energy consumption adverse effect is built to protrude further.To realize the strategic requirement of sustainable development, country proposes that " energy-conservation subtracts
The fundamental policy of row ".According to related request, the reducing energy consumption of most of existing building is completed to the year two thousand thirty, to reach saving
The energy, effectively reduces atmosphere pollution, the purpose benefited the nation and the people.
Building is one of energy-saving and emission-reduction, the most important field of reply climate change, a content important in building energy conservation
It is exactly exterior-wall heat insulation.The chief component that external wall is protected as architecture enclosing, is architectural energy consumption rich and influential family, and knot is gone along with sb. to guard him in reduction
The energy consumption of structure turns into the important means of energy-saving and emission-reduction.At present, external wall transformation common method one is to paste smear mortar outside polyphenyl,
Two is using plug-in insulation material.But when first two remodeling method has respective weak point.Paste and smear mortar side outside polyphenyl
The shortcoming one of method is low reliability, easy to crack to come off, and is caused the accident；Two is short life, and binding agent is generally chemical products, and the life-span is not
Foot 20 years；Three is existing building mostly old building, and weight during paste heat-preserving necessarily affects the reliability of building；Four is scene
Workload is big, has than larger potential safety hazard.The shortcoming one of plug-in insulation material method is cost high；Two is to be also easy to produce cold bridge.
It has to be noted that above-mentioned method can cause extra load to existing structure, and being directed to reducing energy consumption old more
Building, China has two upsurge in construction phases from after 1949, and first high-tide period is the 50's, architectural design, construction
Level is low, of poor quality, and aging and major injury has been presented, and urgent need carries out maintenance and reinforcement.Second high-tide period is 80 ~ 90 years
Generation.As the development of urban construction and time elapse, old, old building increases year by year, buys or exchanges houses, changes using function, ties up
Modification such as makes at the becoming increasingly conspicuous for phenomenon.Building function, remaining degree of safety and its energy consumption can not meet current requirement, occur in that one
The building of large quantities of transformations that need reinforcement.
Exterior-wall heat insulation transformation is carried out to existing old building and existing old building is added it is therefore desirable to design one kind
Solid system.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of existing building and reinforces self-supporting heat-insulating integral system
And construction method, while by existing building strengthening reconstruction with reference to wall thermal insulating transform, realize existing building reinforcing and
Self-supporting heat-insulating integration.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of existing building reinforces self-supporting
Heat insulation integrated system, including frame-type ruggedized construction and heat-insulation wall plate, it is critical only that：The frame-type ruggedized construction includes
The vertical reinforcing angle in existing building periphery exterior wall corner is fixed on, existing building exterior wall is fixed on and is located at longitudinal cross wall intersection
Vertical reinforcing steel column and be arranged at existing building exterior wall floor and connect vertical reinforcing angle and vertically reinforce steel column
The level connection joint rib of slab of fills unit framework is formed, the heat-insulation wall plate is filled in fills unit framework.
Advantageous Effects of the present utility model are：1st, the utility model reached to the reinforcing of existing building and plus
Heat-insulation wall plate is installed in fixing structure and realizes the self-supporting of heat-insulation wall plate, both existing building was reinforced, heat-insulation wall plate is not yet
Increase load to existing building, realize reinforcing self-supporting heat-insulating integration, heat insulation effect can reach 60% ~ 75%, and not produce
Cold bridge；2nd, each part and heat-insulation wall plate in ruggedized construction make in factory, and in-site installation, high precision, quality is good, reduces
Work on the spot amount, improves efficiency of construction, and the operation of assembled in situ formula can reduce the generation of building waste, environmental protection and energy saving；3、
Existing building exterior wall is reinforced and is integrated with wall thermal insulating reducing energy consumption, and not only Confinement effect effect shows the ruggedized construction of frame-type
Write, greatly improve building globality, while reinforce to combine with concrete ply wall effectively increasing structural bearing capacity, and type
Beam-column improves resource utilization as the support fixture of heat-insulation wall plate；4th, between heat-insulation wall plate and existing building only by
Holdfast is connected, and thus weight bearing in not increasing existing building exterior wall load in frame-type ruggedized construction, while doubling as concrete
The exterior sheathing of ply wall, exempts from form removal, saves template consumptive material；5th, bar-mat reinforcement press-in heat-insulation layer is interior in heat-insulation wall plate rather than is arranged on guarantor
Between warm layer and supporting course, the intensity of heat-insulation layer is increased, the groove that bar-mat reinforcement press-in heat-insulation layer is formed increased and supporting course
Bonding force so that supporting course is firmly combined with heat-insulation layer, difficult for drop-off；6th, whole system is selected from common building material, makes
Valency is low.
The utility model is described in detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is that the utility model existing building reinforces self-supporting heat-insulating integral system overlooking the structure diagram；
Fig. 2 is that the utility model existing building reinforces self-supporting heat-insulating integral system positive structure diagram；
Fig. 3 is the structural representation that the utility model existing building reinforces heat-insulation wall plate in self-supporting heat-insulating integral system
Figure；
Fig. 4 is that the structure of level connection joint rib of slab in the utility model existing building reinforcing self-supporting heat-insulating integral system is shown
It is intended to；
Fig. 5 is another knot that the utility model existing building reinforces level connection joint rib of slab in self-supporting heat-insulating integral system
Structure schematic diagram.
In the accompanying drawings：1 is heat-insulation wall plate, and 1-1 is heat-insulation layer, and 1-2 is bar-mat reinforcement, and 1-3 is supporting course, and 1-4 is decorative cover
Layer, 1-5 is stiffener net, and 1-6 is positioning link, and 2 is vertical reinforcing angle, and 3 is to reinforce steel column vertically, and 4 is level
Connection rib of slab, 4-1 is positioning shaped steel, and 4-2 is bar planting, and 4-3 is the extensible bolting bolt, and 4-4 is distributing reinforcement, and 5 is corner reinforcement type
Steel column, 6 is anchor bolt, and 7 is installation foundation, and 8 is concrete ply wall, and 9 is heat-insulation layer, and 10 is reinforced mesh, and A represents existing
Building.
Specific embodiment
Referring to attached Fig. 1 and 2, the utility model provides a kind of existing building and reinforces self-supporting heat-insulating integral system, bag
Frame-type ruggedized construction and heat-insulation wall plate 1 are included, be it is critical only that：Said frame formula ruggedized construction includes being fixed on existing building A
The vertical reinforcing angle 2 in periphery exterior wall corner, be fixed on existing building A exterior walls and be located at longitudinal cross wall intersection vertical reinforcement type
Steel column 3 and be arranged at existing building A exterior wall floors and connect vertical reinforcing angle 2 and vertically reinforce steel column 3 formed filling
The level connection joint rib of slab 4 of unit framework, above-mentioned heat-insulation wall plate 1 is filled in and heat-insulation system is formed in fills unit framework.
Above-mentioned vertical reinforcing angle 2 is reinforced steel column 5 and is connected to facilitate the connection with level connection joint rib of slab 4 with corner,
Reinforcement gusset is provided between vertical reinforcing angle 2 and corner reinforcing steel column 5 to increase both bonding strengths.Above-mentioned level connects
Fishplate bar rib 4 is reinforced steel column 5 and is connected with reinforcing steel column 3 vertically and corner.Steel column 3 is reinforced vertically and corner reinforces steel column
5 can be that section is in C, H, work, the shaped steel of the shape of the mouth as one speaks, and the quantity of setting is determined by existing building A structure detection situations.Reinforce vertically
Angle steel 2 and vertically reinforcing steel column 3 are by supporting coupling assembly（Such as anchor bolt）Fixed with existing building A.
Above-mentioned heat-insulation wall plate 1 is connected by anchor bolt 6 with existing building, in the connection of heat-insulation wall plate 1 and existing building A
Interfacial agents are scribbled on face.Heat-insulation wall plate 1 can also be and is connected with existing building A by anchor bolt 6 and in heat-insulation wall plate 1 and both
Metope, vertically reinforcing steel column 3 and the corner for having building A form die cavity between reinforcing steel column 5, the fill concrete in die cavity
Form concrete ply wall 8.
Referring to attached Figure 4 and 5, level connection joint rib of slab 4 can be the section steel beam or Bars In Poured Concrete Slab arranged at existing building A floors
Rib（Cast-in-situ concrete beam）, as connection rib of slab, play support and fix and Confinement effect, improve building integral rigidity.Work as level
When connection rib of slab 4 is concrete moulding by casting, the reinforcing bar being connected with the floor of existing building A is prefabricated with concrete.Work as water
When flushconnection rib of slab 4 is using section steel beam, it includes and the positioning shaped steel 4-1 mutually fixed at existing building A floors, positioning shaped steel
4-1 by through positioning shaped steel 4-1 and with existing building A floors at the bar planting 4-2 that mutually fixes or the extensible bolting bolt 4-3 with both
Have at the floor of building A and be connected.When necessary, anchor bolt can also be set in positioning shaped steel 4-1 and existing building A.To protect
Card intensity, above-mentioned level connection joint rib of slab 4 thickness in the height direction is identical with the floor thickness of existing building A.It is in level
The exposed end portion for connecting rib of slab 4 sets heat-insulation layer 9 and architectural surface, and the length of horizontal direction is fewer than the thickness of heat-insulation wall plate 1
10~20mm。
Referring to accompanying drawing 3, above-mentioned heat-insulation wall plate 1 makes shaping in the factory, and specification is customized according to existing building A sizes,
When requirement of engineering, wallboard side can carry out decoration treatment and set finish coat 1-4 in factory（Such as pre-made coating ornamental surface or other dresses
Finish coat）, and impose diaphragm, it is to avoid the construction again after installation.Heat-insulation wall plate 1 includes heat-insulation layer 1-1 and bar-mat reinforcement
1-2, in above-mentioned bar-mat reinforcement 1-2 press-in heat-insulation layers 1-1 and is provided with supporting course 1-3 in press-in face.Bar-mat reinforcement 1-2 is pressed into heat-insulation layer
Latticed groove can be produced when in 1-1, the contact area of supporting course 1-3 and heat-insulation layer 1-1 is increased, heat-insulation layer 1- is improved
The cohesive of 1 and supporting course 1-3.The faying face of this external thermal insulation 1-1 and supporting course 1-3 can also be processed into corrugated to enter one
Step lifting associativity.
It is the intensity of lifting supporting course 1-3, stiffener net 1-5 is provided with supporting course 1-3.Bar-mat reinforcement 1-2 with plus
Positioning link 1-6 is provided between strong bar-mat reinforcement 1-5.Bar-mat reinforcement 1-2 and stiffener net 1- is connected by positioning link 1-6
5 form it into skeleton, further enhancing the globality of heat-insulation layer 1-1 and supporting course 1-3.
Above heat-insulation layer 1-1 is styrofoam or polyurethane plate.Supporting course 1-3 is aerated concrete layer, and supporting course 1-3
Thickness is 40-100mm.Distance is preferably 15-35mm between bar-mat reinforcement 1-2 and stiffener net 1-5.And also can make
The component such as pre-buried angle steel, holdfast and suspension hook in journey.
Above-mentioned heat-insulation wall plate is as follows in the specific manufacturing process of factory：
1st, by heat-insulation layer 1-1 cutting formings on demand, and it is corrugated by its outside interface working process；
2nd, by bar-mat reinforcement 1-2 by artificial hammering or machinery press-in heat-insulation layer 1-1；
3rd, first positioning link 1-6 one end and bar-mat reinforcement 1-2 are welded and fixed, then again by the another of positioning link 1-6
One end is welded and fixed with stiffener net 1-5, finally pours supporting course 1-3；
4th, after after supporting course 1-3 coagulation formings, transported to job site by the way of vertical transport and assembled.
The anchor hole of connection anchor bolt 6 is installed after the shaping of heat-insulation wall plate 1 by default spacing, with facilitate it is live with it is existing
Build the connection of A.
The construction method that above-mentioned existing building reinforces self-supporting heat-insulating integral system is comprised the following steps：
Step a, the situation according to existing building A, design and Accounting Framework formula ruggedized construction and heat-insulation wall plate 1；
Each part and heat-insulation wall plate 1 in step b, the frame-type ruggedized construction that is prefabricated in the factory, it is prefabricated after the completion of transport
To job site；When requirement of engineering, the outside of heat-insulation wall plate 1 can carry out decoration treatment in factory, pre-made coating ornamental surface or other
Architectural surface, and diaphragm is imposed, heat-insulation wall plate 1 can set guide rail in transport in haulage vehicle bottom, using vertical transport,
Upper wall is directly lifted, place is not take up and is stacked space.
Step c, concrete is poured into a mould to existing building A periphery excavation pits and in foundation ditch form installation foundation 7；Foundation ditch is opened
According to on-site actual situations during digging, the dismounting scope of terrace around suspension column is determined, excavate scope and be beneficial to engineering construction for principle,
Using pneumatic or electrical equipment, hardened ground around existing building A exterior walls is abolished, and backfill around is excavated to design basis
Bottom surface.
Step d, to reinforce steel column 3 by vertical reinforcing angle 2 and vertically outer with existing building A exterior walls corner and building respectively
Wall longitudinal cross wall intersection is fixed and bottom is fixed with installation foundation 7；
Before installation, the outer plinth courses of thorough cleaning existing building A, it is existing that the deterioration such as peeling, hollowing, honeycomb, corrosion occurs in top layer
The position of elephant be should give and be cut, for larger area layer inferior after cutting application epoxy resin mortar or grouting material repair.
Location of cracks should first carry out Seal treatment.The impurity such as laitance, the greasy dirt of concrete surface are removed with angle grinder, by concrete table
Face polishes flat, and corner grinds small round corner, and uses wire brush bristle, after blown off with compressed air.
The vertical surface of reinforcing angle 2 polishing steel bonding plane, must carry out rust cleaning and coarse treatment.Vertical reinforcing angle 2 with
Original structure post is tried one's best and is adjacent to, vertically substantially straight, and relatively large deviation occurs in such as original structure post, should carry out straight treatment.
Vertical reinforcing angle 2 is anchored using planting rebar with installation foundation 7, and steel column 3 and corner reinforcement type are reinforced vertically
Steel column 5 and the bolt connection of installation foundation 7.
Step e, the production technique connection rib of slab 4 at existing building A exterior wall floors；
Level connection joint rib of slab 4 is cast-in-place rib of slab, and cast-in-place rib of slab uses general concrete, lightweight concrete or aerating coagulation
Soil.The reinforcing bar being connected with existing building A floors is prefabricated with concrete.Level connection joint rib of slab 4 can every layer or interlayer arrangement.
Level connection joint rib of slab 4 is circumferentially disposed along building, and reinforcing bar can be also matched somebody with somebody along cast-in-place rib of slab.It is interior to add with vertical respectively with reinforcing bar two ends
Curable type steel column 3 and corner reinforce steel column 5 and are connected.
Above-mentioned level connection joint rib of slab 4 can also be section steel beam, and it includes and the location type mutually fixed at existing building A floors
Steel 4-1, positioning shaped steel 4-1 by through positioning shaped steel 4-1 and with existing building A floors at the bar planting 4-2 that mutually fixes or lengthening
Anchor bolt 4-3 is connected with existing building A floors.It is to increase intensity that distributing reinforcement 4-4 also can be set in positioning shaped steel 4-1.
Positioning shaped steel 4-1 preferentially selects angle steel.Positioning shaped steel 4-1 two ends reinforce steel column 5 with reinforcing steel column 3 vertically and corner respectively
It is connected.
Level connection joint rib of slab 4 is made successively from bottom to top, and fills unit framework is gradually formed during making.No matter
Level connection joint rib of slab 4 uses any making form, can production technique connection rib of slab 4 while filling insulating wall plate 1, especially
It is using cast-in-place rib of slab（Cast-in-situ concrete beam）Technique when.
Step f, the fills unit frame formed to vertical reinforcing angle 2, vertically reinforcing steel column 3 and level connection joint rib of slab 4
Filling and fixed heat-insulation wall plate 1 in frame；Heat-insulation wall plate 1 is filled with least one piece in fills unit framework, and to connection
Heat-insulation wall plate 1 and metope are fixed by anchor bolt 6 after wall surface spraying interfacial agents.The mass loading of heat-insulation wall plate 1 is in level
On connection rib of slab 4, anchor bolt 6 plays the positioning action of heat-insulation wall plate 1 and metope.Furthermore it is also possible to be heat-insulation wall plate 1 by
Anchor bolt 6 and supporting support member and metope are fixed and die cavity are formed between heat-insulation wall plate 1 and metope and mixed to being filled in die cavity
Solidifying soil forms concrete ply wall 8, and reinforced mesh 10 can also be arranged in die cavity to increase the intensity of concrete ply wall 8.Pour
Concrete used by note concrete ply wall 8 can use general concrete, self-compacting concrete.Anchoring piece and existing building A walls
Body connects depth preferably in more than 40mm.
Step g, between heat-insulation wall plate 1 and heat-insulation wall plate, heat-insulation wall plate 1 and vertical reinforcing angle 2, reinforce steel column vertically
Junction between 3 and level connection joint rib of slab 4 is filled, decoration treatment.
More specifically, the junction setting between heat-insulation wall plate 1 in step g is carried out as the sealing adhesive tape of moulding
Treatment；Junction between heat-insulation wall plate 1 and vertically reinforcing angle 2, vertical reinforcing steel column 3 and level connection joint rib of slab 4
Filled with sealing silica gel or foaming Polyurethane.Decoration fastener can be arranged on anchor bolt 6, is played after beautification function finishes cleaning and is taken off
Fall decorative layer diaphragm.The axle of anchor bolt 6 sets up at least one sealing piece.Can arrange that moulding is buckled, and is played on anchor bolt 6
Decoration function.
Steel column 3 is reinforced vertically and corner reinforces the equivalent thickness of Design of Reinforcement concrete ply wall 8 of the cross-sectional width of steel column 5
（40~70mm）With the sum of heat-insulation wall plate 1；Heat-insulation layer 9 is located at reinforces steel column 3, level connection joint rib of slab 4 and corner reinforcement type vertically
Steel column 5 exposes side, using thermal insulation material（Such as FTC, MFC）Do special isothermal holding.
Also it is entered while can making isothermal holding to existing building A using system of the present utility model and construction method
Go reinforcing, be highly suitable for the transformation of old building.
Claims (6)
1. a kind of existing building reinforces self-supporting heat-insulating integral system, including frame-type ruggedized construction and heat-insulation wall plate（1）, its
It is characterised by：The frame-type ruggedized construction includes being fixed on existing building（A）The vertical reinforcing angle in periphery exterior wall corner
（2）, be fixed on existing building（A）Exterior wall and be located at longitudinal cross wall intersection vertical reinforcing steel column（3）And it is arranged on existing building
Build（A）At exterior wall floor and connect vertical reinforcing angle（2）With reinforcing steel column vertically（3）Form the level of fills unit framework
Connection rib of slab（4）, the heat-insulation wall plate（1）It is filled in fills unit framework.
2. existing building according to claim 1 reinforces self-supporting heat-insulating integral system, it is characterised in that：It is described vertical
Reinforcing angle（2）Steel column is reinforced with corner（5）It is connected, in vertical reinforcing angle（2）Steel column is reinforced with corner（5）Between be provided with
Strengthen gusset, the level connection joint rib of slab（4）With reinforcing steel column vertically（3）And corner reinforces steel column（5）It is connected.
3. existing building according to claim 1 reinforces self-supporting heat-insulating integral system, it is characterised in that：The insulation
Wallboard（1）By anchor bolt（6）With existing building（A）It is connected, in heat-insulation wall plate（1）With existing building（A）Joint face on
Scribble interfacial agents.
4. existing building according to claim 1 reinforces self-supporting heat-insulating integral system, it is characterised in that：The insulation
Wallboard（1）By anchor bolt（6）With existing building（A）It is connected and in heat-insulation wall plate（1）With existing building（A）Between form mould
Chamber, fill concrete forms concrete ply wall in die cavity（8）.
5. existing building according to claim 1 reinforces self-supporting heat-insulating integral system, it is characterised in that：The level
Connection rib of slab（4）It is concrete moulding by casting, is prefabricated with concrete and existing building（A）At floor be connected reinforcing bar or
With existing building（A）The positioning shaped steel mutually fixed at floor（4-1）, the positioning shaped steel（4-1）By through positioning shaped steel（4-
1）And and existing building（A）The bar planting mutually fixed at floor（4-2）Or the extensible bolting bolt（4-3）With existing building（A）Floor
Place is connected.
6. existing building according to claim 1 reinforces self-supporting heat-insulating integral system, it is characterised in that：The insulation
Wallboard（1）Including heat-insulation layer（1-1）And bar-mat reinforcement（1-2）, the bar-mat reinforcement（1-2）Press-in heat-insulation layer（1-1）It is interior and pressure
Enter face and be provided with supporting course（1-3）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621237661.7U CN206189891U (en) | 2016-11-18 | 2016-11-18 | Existing building reinforcement is from load -bearing and insulating integration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621237661.7U CN206189891U (en) | 2016-11-18 | 2016-11-18 | Existing building reinforcement is from load -bearing and insulating integration system |
Publications (1)
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|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368445A (en) * | 2016-11-18 | 2017-02-01 | 张洪波 | Existing building reinforcing and self-supporting thermal insulation integrated system and construction method |
| CN107366438A (en) * | 2017-06-27 | 2017-11-21 | 浙江绿筑集成科技有限公司 | A kind of external wall system method for repairing and mending |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368445A (en) * | 2016-11-18 | 2017-02-01 | 张洪波 | Existing building reinforcing and self-supporting thermal insulation integrated system and construction method |
| CN106368445B (en) * | 2016-11-18 | 2019-03-01 | 河北大地建设科技有限公司 | Existing building reinforces self-supporting heat-insulating integral system and construction method |
| CN107366438A (en) * | 2017-06-27 | 2017-11-21 | 浙江绿筑集成科技有限公司 | A kind of external wall system method for repairing and mending |
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Effective date of registration: 20180820 Address after: 050035 266 Tianshan Street, Shijiazhuang, Hebei Patentee after: HEBEI DADI CONSTRUCTION TECHNOLOGY CO., LTD. Address before: 050000 266 Tianshan Street, hi tech Zone, Shijiazhuang, Hebei Co-patentee before: Hao Guiqiang Patentee before: Zhang Hongbo |
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