CN102900238B - Reusable anti-climbing device at bottom layer of tower crane on building construction site - Google Patents
Reusable anti-climbing device at bottom layer of tower crane on building construction site Download PDFInfo
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- CN102900238B CN102900238B CN201210259204.8A CN201210259204A CN102900238B CN 102900238 B CN102900238 B CN 102900238B CN 201210259204 A CN201210259204 A CN 201210259204A CN 102900238 B CN102900238 B CN 102900238B
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- climbing device
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Abstract
The invention relates to a reusable anti-climbing device at the bottom layer of a tower crane on a building construction site. The reusable anti-climbing device is formed by a steel structure framework; and the steel structure frame is composed of stand columns, truss girders, structural cross beams, a door frame, a door, inclined braces, upright poles, connecting pieces, long auxiliary beams, short auxiliary beams and short beams which are connected and combined through bolts and are respectively standard parts with unified specification. The stand columns are connected to four square ground foundations; and the door with a door lock is arranged in the front of the steel structure framework, a reinforcing mesh is laid at the periphery of the steel structure framework, an anti-falling scaffold board is laid on the roof of the upper layer of the steel structure framework, and a color steel plate is laid on the roof of the lower layer of the steel structure framework. The reusable anti-climbing device at the bottom layer of the tower crane on the building construction site is formed by combining the multiple standard parts which are designed according to conditions such as the sizes of standard knots of the tower crane and design codes for lightweight steel structures. The reusable anti-climbing device has the characteristics of being suitable for the sizes of the standard knots at the bottom layers of different tower cranes, capable of being freely combined, convenient, practical and low in cost, and saving labor and time. The reusable anti-climbing device is convenient to dismantle, is in line with a green construction idea and is safe to use on the site.
Description
Technical field
The present invention relates to a kind of enclosure device of tower crane, particularly relate to a kind of construction site reusable tower crane bottom anti-climbing device and engineering method thereof.
Background technology
Tower crane is the indispensable frock of horizontal or vertical transportation construction material, tower crane driver every day need to be from climbing the driving of carrying out tower crane to tower crane cab in standard section of tower crane, the climbing tower crane and cause potential safety hazard for fear of personnel beyond tower department from tower crane bottom, a kind of easy anti-climbing scaffold usually will be set up in job site.This anti-climbing scaffold should have the function that prevents non-tower crane staff climbing, meets again the requirement of other safety standard aspect.Set up traditional anti-climbing scaffold, after drawing up a plan, design, set up examining after qualified, set up and also will pass through construction party, management Fang Deng each side checks and accepts, could use after qualified, after Practical Completion with regard to dismounting thereupon.All object of construction production that has tower crane, all will repeat this work, again set up, and have greatly wasted human and material resources and financial resources.For this reason, design a kind of all can independent assortment under different standard section of tower crane sizes, convenient and practical, saving of work and time, reusable combination assembled tower crane bottom anti-climbing device be necessary greatly.
Summary of the invention
The object of the invention is to repeat to set up the wasting technological deficiency of anti-climbing scaffold for existing, provide a kind of applicable different tower crane bottom standard knot sizes, can independent assortment, convenient and practical, saving of work and time, construction site reusable tower crane bottom anti-climbing device and engineering method that cost is low.
The object of the invention is to realize.The reusable tower crane bottom of construction site of the present invention anti-climbing device comprises that line is basis, foursquare four ground 1, the reusable tower crane bottom of construction site of the present invention anti-climbing device is characterised in that: the reusable tower crane bottom of described construction site anti-climbing device is the combination assembled steel structure frame that standard component forms, by four root posts that are fixed in respectively on described four bases, on described every root post, be all provided with five layers of connecting support arm, described any one deck connecting support arm is equipped with parallel adjacent cylindrical and mutual two support arms in 90 ° of being in, described four root posts connect and compose quadrangle grade beam by four girder trusses by first floor connecting support arm, by three girder trusses, by second layer connecting support arm, connect and compose steel structure frame both sides and lower middle girder below, by three girder trusses, by the 3rd layer of connecting support arm, connect and compose steel structure frame both sides and upper middle girder below, by four girder trusses, by the 4th layer of connecting support arm, connect and compose quadrangle lower floor roof girder, by four girder trusses, by layer 5 connecting support arm, connect and compose quadrangle upper strata roof girder, described second layer connecting support arm before described steel structure frame on two root posts and the 3rd layer of connecting support arm are connected with respectively structure crossbeam, grade beam before described steel structure frame, structure crossbeam middle part is provided with doorframe, on described doorframe, door is installed, between described lower floor roof girder and upper strata roof girder, be connected with bearing diagonal and vertical rod, between two girder trusses of described upper strata roof girder or lower floor's roof girder fore-and-aft direction, by connector symmetry, connect two long floor stringers, between described two long floor stringers, by connector symmetry, connect two short floor stringers, described two long floor stringers and two short floor stringers are connected to by short beam by connector on described four girder trusses and form upper strata roof structure or lower floor's roof structure in midpoint, the affixed steel mesh reinforcement that is equipped with of described steel structure frame surrounding, the upper surface of described upper strata roof structure is equipped with preventing dropped material scaffold floor, the upper surface of described lower floor roof structure is equipped with color steel common combination and forms.
The reusable tower crane bottom of construction site of the present invention anti-climbing device, respectively do for oneself respectively material and the dimensions unification of wherein said column, girder truss, structure crossbeam, doorframe, door, bearing diagonal, vertical rod, connector, long floor stringer, short floor stringer, short beam has the standard component of interchangeability.
The reusable tower crane bottom of construction site of the present invention anti-climbing device, the suspension column base plate that wherein said column is welded by its bottom is fixed on described basis by the double-screw bolt being anchored on basis.
The reusable tower crane bottom of construction site of the present invention anti-climbing device, wherein said five layers of connecting support arm are all welded on described column, and described girder truss is fixed on the described connecting support arm of described column by standard bolt.Described structure crossbeam is fixed on the described connecting support arm before described column by standard bolt.
The reusable tower crane bottom of construction site of the present invention anti-climbing device, wherein said connector is welded on described long floor stringer, short floor stringer, short beam two ends, and described connector is connected with described girder truss, long floor stringer, short floor stringer by standard bolt.
The reusable tower crane bottom of construction site of the present invention anti-climbing device, wherein said scaffold floor is the plank that 50mm is thick.
The reusable tower crane bottom of construction site of the present invention anti-climbing device, wherein said door is provided with door lock.
Another object of the present invention is the engineering method that provides the reusable tower crane bottom of construction site anti-climbing device, and the engineering method of the reusable tower crane bottom of construction site of the present invention anti-climbing device completes by following steps, comprising:
Step 1, according to pattern, manufacture respectively the used various standardized structural elements of the job site reusable tower crane bottom anti-climbing device of adapted for various standard section of tower crane size, the finished parts of manufacturing is eliminated rust and the work of brushing rustproof paint, put in storage afterwards stand-by;
Step 2, according to this construction standard section of tower crane size, according to detail of design, in standard section of tower crane surrounding, construct with four concrete foundations of anchor stud, according to this construction standard section of tower crane size, by specification length, select column, girder truss, structure crossbeam, doorframe, door, bearing diagonal, vertical rod, long floor stringer, short floor stringer and short beam and the member respectively choosing is transported to the scene of preparing to carry out, infield and install;
Step 3, when base concrete intensity reaches 75% when above of design strength, the installation of the reusable tower crane bottom of construction site anti-climbing device is carried out at scene;
Step 4, in the reusable tower crane bottom of the construction site of setting up anti-climbing device surrounding, hang safety warning-panel, safe slogans, and bring into use,
Step 5, use the reusable tower crane bottom of construction site anti-climbing device, first to its assembly remove, afterwards to each standardized structural element removing maintenance work that eliminates rust and paint, deposit temporarily or separately strange land install;
The engineering method of the reusable tower crane bottom of construction site of the present invention anti-climbing device, comprises the following steps in wherein said step 3:
3.1, the suspension column base plate of column is affixed by anchor stud and concrete foundation;
3.2, column and girder truss, structure crossbeam and girder truss and long floor stringer, short floor stringer, short beam are bolted;
3.3, before the reusable tower crane bottom of construction site anti-climbing device, by doorframe, door and door lock are installed;
3.4, plank scaffold floor and upper strata roof structure are connected and fixed by iron wire, color steel and lower floor's roof structure are bolted;
3.5, steel mesh reinforcement and column, girder truss is thick by 1mm, 50mm is wide steel plate are connected by bolt.
The reusable tower crane bottom of construction site of the present invention anti-climbing device difference from prior art is that the reusable tower crane bottom of construction site of the present invention anti-climbing device has taken into full account the field condition of construction site tower crane, the size of standard knot, the conditions such as the design specifications requirement of lightweight steel construction, designed multiple standards member, some standardized structural elements are bolted and constitute the reusable tower crane bottom of construction site of the present invention anti-climbing device, it has applicable different tower crane bottom standard knot sizes, energy independent assortment, convenient and practical, saving of work and time, the feature that cost is low.It takes the theory of tearing open conveniently, meeting green construction, the on-the-spot safety of using.
Below in conjunction with accompanying drawing, the reusable tower crane bottom of construction site of the present invention anti-climbing device is described further.
Accompanying drawing explanation
Fig. 1 is that the structure master of the reusable tower crane bottom of construction site anti-climbing device looks schematic diagram.
Fig. 2 is the structure schematic side view of the reusable tower crane bottom of construction site anti-climbing device.
Fig. 3 is the structure schematic top plan view of the reusable tower crane bottom of construction site anti-climbing device.
Fig. 4 is that pillar construction master looks schematic diagram.
Fig. 5 is A-A generalized section in Fig. 4.
Fig. 6 is B-B generalized section in Fig. 4.
Fig. 7 is the Typical I detail drawing of connector in Fig. 3.
Fig. 8 is the typical II detail drawing in Fig. 1.
Fig. 9 is the C-C cross-sectional view in Fig. 7.
Figure 10 is that bottom anti-climbing device is built the form of structure on brick structure.
Figure 11 is that bottom anti-climbing device is built in the form of structure being less than on 250mm concrete surface.
Figure 12 is that bottom anti-climbing device is built in the form of structure being greater than on 250mm concrete surface
The specific embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, the reusable tower crane bottom of construction site of the present invention anti-climbing device comprises that line is basis, foursquare four ground 1.The reusable tower crane bottom of construction site of the present invention anti-climbing device is the combination assembled steel structure frame that standard component forms, by four root posts 2 that are fixed in respectively on four bases 1, on every root post 2, be all provided with five layers of connecting support arm 2-1, 2-2, 2-3, 2-4, 2-5, one deck connecting support arm 2-1 or 2-2 or 2-3 or 2-4 or 2-5 are equipped with parallel adjacent cylindrical and mutual two support arms in 90 ° of being in arbitrarily, four root posts 2 connect and compose quadrangle grade beam 3-1 by four girder trusses 3 by first floor connecting support arm 2-1, by three girder trusses 3, by second layer connecting support arm 2-2, connect and compose steel structure frame both sides and lower middle girder 3-2 below, by three girder trusses 3, by the 3rd layer of connecting support arm 2-3, connect and compose steel structure frame both sides and upper middle girder 3-3 below, by four girder trusses 3, by the 4th layer of connecting support arm 2-4, connect and compose the roof girder 3-4 of quadrangle lower floor, by four girder trusses 3, by layer 5 connecting support arm 2-5, connect and compose quadrangle upper strata roof girder 3-5, second layer connecting support arm 2-2 before steel structure frame on two root posts 2 and the 3rd layer of connecting support arm 2-3 are connected with respectively structure crossbeam 3-6, 3-7, grade beam 3-1 before steel structure frame, structure crossbeam 3-6, 3-7 middle part is provided with doorframe 4, door 5 is installed on doorframe 4, door 5 is provided with door lock 6, between the roof girder 3-4 of lower floor and upper strata roof girder 3-5, be connected with bearing diagonal 7 and vertical rod 8, between two girder trusses 3 of upper strata roof girder 3-5 or the roof girder 3-4 of lower floor fore-and-aft direction, by connector 9 symmetries, connect two long floor stringers 10, between two long floor stringers 10, by connector 9 symmetries, connect two short floor stringers 11, two long floor stringers 10 and two short floor stringers 11 are connected to by short beam 12 by connector 9 in midpoint and on four girder trusses 3, form upper strata roof structure or lower floor's roof structure, the affixed steel mesh reinforcement 13 that is equipped with of steel structure frame surrounding, the upper surface of upper strata roof structure is equipped with preventing dropped material scaffold floor 14, the upper surface of lower floor's roof structure is equipped with color steel 15 common combinations and forms.
Respectively do for oneself respectively material and the dimensions unification of column 2, girder truss 3, structure crossbeam 3-6,3-7, doorframe 4, door 5, bearing diagonal 7, vertical rod 8, connector 9, long floor stringer 10, short floor stringer 11, short beam 12 has the standard component of interchangeability.
As shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 5, Fig. 8, the suspension column base plate 16 that column 2 is welded by its bottom is fixed on described basic 1 by the double-screw bolt 17 being anchored on basis 1.
As shown in Fig. 4, Fig. 6, five layers of connecting support arm 2-1～2-5 are all welded on column 2.
As shown in Figure 1, Figure 2, Figure 3 shows, girder truss 3 is fixed on the connecting support arm 2-1 or 2-2 or 2-3 or 2-4 or 2-5 of column 2 by standard bolt, and structure crossbeam 3-6,3-7 are fixed on column 2 connecting support arm 2-2 or 2-3 above by standard bolt.
As shown in Fig. 3, Fig. 7, Fig. 9, connector 9 is welded on long floor stringer 10, short floor stringer 11, short beam 12 two ends.Connector 9 is connected with girder truss 3, long floor stringer 10, short floor stringer 11 by standard bolt.
The scaffold floor 14 of upper roofing is the plank that 50mm is thick.
The engineering method of the reusable tower crane bottom of construction site of the present invention anti-climbing device completes by following steps:
Step 1, according to pattern, manufacture respectively the used various standardized structural elements of the job site reusable tower crane bottom anti-climbing device of adapted for various standard section of tower crane size, the finished parts of manufacturing is eliminated rust and the work of brushing rustproof paint, put in storage afterwards stand-by.
Step 2, according to this construction standard section of tower crane size, according to detail of design, in standard section of tower crane surrounding, construct with four concrete foundations 1 of anchor stud 17, according to this construction standard section of tower crane size, by specification length, select column 2, girder truss 3, structure crossbeam 3-6,3-7, doorframe 4, door 5, bearing diagonal 7, vertical rod 8, long floor stringer 10, short floor stringer 11 and short beam 12 and the member respectively choosing is transported to the scene of preparing to carry out, infield and install.
Step 3, when basic 1 concrete strength reaches 75% when above of design strength, the installation of reusable tower crane bottom anti-climbing device is carried out at scene.
Step 4, the safe slogans that hang safety warning-panel and adopt spray painting cloth to make in the reusable tower crane bottom of the construction site of setting up anti-climbing device surrounding, and bring into use.
Step 5, use the reusable tower crane bottom of construction site anti-climbing device, first to its assembly remove, afterwards to each standardized structural element removing maintenance work that eliminates rust and paint, deposit temporarily or separately strange land install.
In the engineering method step 3 of the reusable tower crane bottom of construction site of the present invention anti-climbing device, comprise the following steps:
3.1, the suspension column base plate of column 2 16 is affixed by anchor stud 17 and concrete foundation 1.
3.2, column 2 and girder truss 3, structure crossbeam 3-6,3-7 and girder truss 3 and long floor stringer 10, short floor stringer 11, short beam 12 are bolted.
3.3, before the reusable tower crane bottom of construction site anti-climbing device, by doorframe 4, door 5 and door lock 6 are installed.
3.4, plank scaffold floor 14 and upper strata roof structure are connected and fixed by iron wire.Color steel 15He lower floor roof structure is bolted.
3.5, steel mesh reinforcement 13 and column 2, girder truss 3 is thick by 1mm, 50mm is wide steel plate are connected by bolt.
The bolt of the present invention by various standardized structural elements connects to realize freely assembled, and its peace is torn open conveniently, flexible operation; By the reusable tower crane bottom anti-climbing device of construction site top, increase the desired safety construction requirement of industry standard that catch-phrase has been realized construction site.
The reusable tower crane bottom of construction site of the present invention anti-climbing device except the present embodiment provide on basis 1 affixed a kind of form, give at brick wall structure (referring to Figure 10), at thickness, be less than 250mm concrete surface (referring to Figure 11), at thickness, be greater than the upper three kinds of forms that the reusable tower crane bottom of construction site anti-climbing device is installed of 250mm concrete surface (referring to Figure 12), to adapt to the needs of different fabricating yards.
Above-described embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention, all should fall in the definite protection domain of the claims in the present invention book.
Claims (9)
1. the reusable tower crane bottom of a construction site anti-climbing device, comprise that line is basis, foursquare four ground (1), it is characterized in that: the reusable tower crane bottom of described construction site anti-climbing device is the combination assembled steel structure frame that standard component forms, by four root posts (2) that are fixed in respectively on described four bases (1), on described every root post (2), be all provided with five layers of connecting support arm (2-1, 2-2, 2-3, 2-4, 2-5), described first floor connecting support arm (2-1) or second layer connecting support arm (2-2) or the 3rd layer of connecting support arm (2-3) or the 4th layer of connecting support arm (2-4) or layer 5 connecting support arm (2-5) are equipped with parallel adjacent cylindrical and mutual two support arms in 90 ° of being in, described four root posts (2) connect and compose quadrangle grade beam (3-1) by four girder trusses (3) by first floor connecting support arm (2-1), by three girder trusses (3), by second layer connecting support arm (2-2), connect and compose steel structure frame both sides and lower middle girder (3-2) below, by three girder trusses (3), by the 3rd layer of connecting support arm (2-3), connect and compose steel structure frame both sides and upper middle girder (3-3) below, by four girder trusses (3), by the 4th layer of connecting support arm (2-4), connect and compose quadrangle lower floor roof girder (3-4), by four girder trusses (3), by layer 5 connecting support arm (2-5), connect and compose quadrangle upper strata roof girder (3-5), described second layer connecting support arm (2-2) and the 3rd layer of connecting support arm (2-3) before described steel structure frame on two root posts (2) are connected with respectively structure crossbeam (3-6, 3-7), grade beam before described steel structure frame (3-1), structure crossbeam (3-6, 3-7) middle part is provided with doorframe (4), door (5) is installed on described doorframe (4), between described lower floor roof girder (3-4) and upper strata roof girder (3-5), be connected with bearing diagonal (7) and vertical rod (8), between two girder trusses (3) of described upper strata roof girder (3-5) or lower floor's roof girder (3-4) fore-and-aft direction, by connector (9) symmetry, connect two long floor stringers (10), between described two long floor stringers (10), by connector (9) symmetry, connect two short floor stringers (11), described two long floor stringers (10) and two short floor stringers (11) are connected to described four piece girder trusses (3) upper form upper strata roof structure or lower floor roof structure by connector (9) by short beam (12) in midpoint, the affixed steel mesh reinforcement (13) that is equipped with of described steel structure frame surrounding, the upper surface of described upper strata roof structure is equipped with preventing dropped material scaffold floor (14), the upper surface of described lower floor roof structure is equipped with color steel (15) common combination and forms.
2. the reusable tower crane bottom of construction site according to claim 1 anti-climbing device, is characterized in that: respectively do for oneself respectively material and the dimensions unification of described column (2), girder truss (3), structure crossbeam (3-6,3-7), doorframe (4), door (5), bearing diagonal (7), vertical rod (8), connector (9), long floor stringer (10), short floor stringer (11), short beam (12) has the standard component of interchangeability.
3. the reusable tower crane bottom of construction site according to claim 1 and 2 anti-climbing device, is characterized in that: the suspension column base plate (16) that described column (2) is welded by its bottom is fixed on described basis (1) by the double-screw bolt (17) being anchored on basis (1).
4. the reusable tower crane bottom of construction site according to claim 3 anti-climbing device, it is characterized in that: described five layers of connecting support arm (2-1～2-5) are all welded on described column (2), described girder truss (3) is fixed on the described first floor connecting support arm (2-1) or second layer connecting support arm (2-2) or the 3rd layer of connecting support arm (2-3) or the 4th layer of connecting support arm (2-4) or layer 5 connecting support arm (2-5) of described column (2) by standard bolt, described structure crossbeam (3-6, 3-7) by standard bolt, be fixed on described column (2) second layer connecting support arm (2-2) or the 3rd layer of connecting support arm (2-3) above.
5. the reusable tower crane bottom of construction site according to claim 4 anti-climbing device, it is characterized in that: described connector (9) is welded on described long floor stringer (10), short floor stringer (11), short beam (12) two ends, described connector (9) is connected with described girder truss (3), long floor stringer (10), short floor stringer (11) by standard bolt.
6. the reusable tower crane bottom of construction site according to claim 5 anti-climbing device, is characterized in that: described scaffold floor (14) is the thick plank of 50mm.
7. the reusable tower crane bottom of construction site according to claim 6 anti-climbing device, is characterized in that: described door (5) is provided with door lock (6).
8. according to the engineering method of the reusable tower crane bottom of the construction site anti-climbing device described in claim 1 to 7 any one, it is characterized in that comprising the following steps in method:
Step 1, according to pattern, manufacture respectively the used various standardized structural elements of the job site reusable tower crane bottom anti-climbing device of adapted for various standard section of tower crane size, the finished parts of manufacturing is eliminated rust and the work of brushing rustproof paint, put in storage afterwards stand-by;
Step 2, according to this construction standard section of tower crane size, according to detail of design, in standard section of tower crane surrounding, construct with four concrete foundations (1) of anchor stud (17), according to this construction standard section of tower crane size, by specification length, select column (2), girder truss (3), structure crossbeam (3-6,3-7), doorframe (4), door (5), bearing diagonal (7), vertical rod (8), long floor stringer (10), short floor stringer (11) and short beam (12) and the member respectively choosing is transported to the scene of preparing to carry out, infield and install;
Step 3, when basis (1) concrete strength reaches 75% when above of design strength, the installation of the reusable tower crane bottom of construction site anti-climbing device is carried out at scene;
Step 4, in the reusable tower crane bottom of the construction site of setting up anti-climbing device surrounding, hang safety warning-panel, safe slogans, and bring into use;
Step 5, use the reusable tower crane bottom of construction site anti-climbing device, first to its assembly remove, afterwards to each standardized structural element removing maintenance work that eliminates rust and paint, deposit temporarily or separately strange land install.
9. the engineering method of the reusable tower crane bottom of construction site according to claim 8 anti-climbing device, wherein said step 3 comprises:
3.1, the suspension column base plate (16) of column 2 is affixed by anchor stud (17) and concrete foundation (1);
3.2, column (2) and girder truss (3), structure crossbeam (3-6,3-7) and girder truss (3) and long floor stringer (10), short floor stringer (11), short beam (12) are bolted;
3.3, before the reusable tower crane bottom of construction site anti-climbing device, by doorframe (4), door (5) and door lock (6) are installed;
3.4, plank scaffold floor (14) and upper strata roof structure are connected and fixed by iron wire, color steel (15) and lower floor's roof structure are bolted;
3.5, steel mesh reinforcement (13) is connected by bolt with column (2), girder truss (3) steel plate thick by 1mm, that 50mm is wide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210259204.8A CN102900238B (en) | 2012-07-25 | 2012-07-25 | Reusable anti-climbing device at bottom layer of tower crane on building construction site |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210259204.8A CN102900238B (en) | 2012-07-25 | 2012-07-25 | Reusable anti-climbing device at bottom layer of tower crane on building construction site |
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| CN102900238A CN102900238A (en) | 2013-01-30 |
| CN102900238B true CN102900238B (en) | 2014-11-26 |
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| CN105938983A (en) * | 2016-06-20 | 2016-09-14 | 南京恒众机械有限公司 | Reinforced switch cabinet |
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| JP2011246987A (en) * | 2010-05-27 | 2011-12-08 | Ever-Shoukai Co Ltd | Hanger of safety net for construction work and support structure of hanger |
| JP2012127106A (en) * | 2010-12-15 | 2012-07-05 | Tokyo Electric Power Co Inc:The | Curing facility of lower equipment present near high-rise structure and construction method of curing facility of lower equipment |
| CN202000684U (en) * | 2011-03-30 | 2011-10-05 | 中联世纪建设集团有限公司 | Outwards extending horizontal safety net system used in construction of main body structure of high-rise building |
| CN202012205U (en) * | 2011-04-02 | 2011-10-19 | 中天建设集团有限公司第五建设公司 | Safe anti-falling net |
| CN202969970U (en) * | 2012-07-25 | 2013-06-05 | 中国建筑一局(集团)有限公司 | Reusable anti-climbing device for avoiding climbing head mast from bottom in building construction field |
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| CN102900238A (en) | 2013-01-30 |
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