CN107055318A - A kind of door frame - Google Patents
A kind of door frame Download PDFInfo
- Publication number
- CN107055318A CN107055318A CN201710216025.9A CN201710216025A CN107055318A CN 107055318 A CN107055318 A CN 107055318A CN 201710216025 A CN201710216025 A CN 201710216025A CN 107055318 A CN107055318 A CN 107055318A
- Authority
- CN
- China
- Prior art keywords
- supporting leg
- spring
- door frame
- lower edge
- secondary supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C6/00—Girders, or track-supporting structures, specially adapted for cranes
Abstract
The invention discloses a kind of door frame, its drip irrigation device is：Leg member including girder, in being vertically arranged and for producing supporting role with ground, it is characterized in that：The leg member includes main supporting leg, secondary supporting leg, and the main supporting leg and secondary supporting leg are connected to the two ends of girder, and the entire length size of the main supporting leg is more than the entire length size of secondary supporting leg；When above-mentioned door frame is installed on the mounting surface that height differs, the longer main supporting leg of entire length can be supported on highly relatively low supporting surface, the shorter secondary supporting leg of entire length can be supported in the higher supporting surface of height, so that the effect of the stable support of the horizontal plane for adapting to different height.
Description
Technical field
The present invention relates to loop wheel machine support frame, more particularly to a kind of door frame.
Background technology
In building construction process, lifting appliance is often used, it is that building material requested is come into it from being conveyed through that it, which is acted on,
The place for needing to use is lifted to afterwards.
Traditional door frame, as shown in figure 5, it is included in the girder 1 laterally set, the two ends of the girder 1 respectively it is vertical to
Two supporting legs 21 are arranged with, the length of two supporting legs 21 is consistent, lower end and the ground of two supporting legs 21 offset；In reality
Using that can set a lifting machine 22 on process middle girder 1, lifting machine 22 can be carried out on left and right sliding, lifting machine 22 along girder 1
Energy lower section lifting rope, lifting rope end can set hook, to lift weight.
The door frame of the above-mentioned type, although lifting stability is higher, only carries out lifting behaviour in mutually level horizontal plane
Make, competence exertion goes out best stabilized lifting state, and among most of construction environment, its meeting for installing ground produces certain
Difference in height, especially need, by when lifting object is transported to height higher ground, possess the door frame of equal length supporting leg 21,
Just ideal stable hoisting process can not be realized.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of door frame, it can be in different height
Horizontal plane carries out stable support.
The present invention above-mentioned technical purpose technical scheme is that：A kind of door frame, including girder, be in
It is vertically arranged and for the leg member with ground generation supporting role, the leg member includes main supporting leg, secondary supporting leg, the main branch
Leg and secondary supporting leg are connected to the two ends of girder, and the entire length size of the main supporting leg is big more than the entire length of secondary supporting leg
It is small.
Pass through above-mentioned technical proposal, when above-mentioned door frame is installed on the mounting surface that height differs, the longer master of entire length
Supporting leg can be supported on highly relatively low supporting surface, and the shorter secondary supporting leg of entire length can be supported in the higher supporting surface of height,
So as to the effect of the stable support of the horizontal plane for adapting to different height.
It is preferred that, the secondary supporting leg entire length size is the 1/2 of main supporting leg entire length size.
By above-mentioned technical proposal, tested by theoretical door frame LOAD FOR and real work, when meeting, secondary supporting leg is whole
When body length size is 1/2 condition of main supporting leg entire length size, the overall support strength of door frame can reach more excellent state.
It is preferred that, the girder includes winding up, the lower edge positioned at lower section of winding up, some web member groups, and each web member group connects
It is connected to and winds up between lower edge.
By above-mentioned technical proposal, in actual use, wind up on corresponding hanging apparatus, and lifting dress can be installed
Putting can be moved left and right along winding up, and web member group, which is located at, winds up between lower edge, can be greatly enhanced and wind up between lower edge
Bonding strength, to lift the stability in use of hanging apparatus.
It is preferred that, the winding up total quantity on girder is the 1/2 of lower edge total quantity, and each web member group includes 4
Every web member part upper end in web member part, same web member group be all connected to it is same wind up, every two web members in same secondary bar group
Part lower end is connected to same lower edge.
By above-mentioned technical proposal, when hanging apparatus carries out lifting work, hanging apparatus directly can apply pressure to winding up
Power, its pressure can be finally passed to two lower edges respectively through 4 web member parts；It is arranged such, can significantly lifts what is winded up
Actual installation stability.
It is preferred that, in addition to strengthening mechanism, the strengthening mechanism includes some support blocks, the upper and lower ends of each support block
Sliding, which is connected to, respectively winds up and lower edge；
The secondary supporting leg horizontal sliding is connected to lower edge, and the secondary supporting leg is provided with horizontal on fixed station, fixing bolt, the lower edge
To some fixing screwed holes are arranged with, the fixing bolt is through fixed station and is threadedly connected in correspondence fixed bolt hole.
Pass through above-mentioned technical proposal, it is contemplated that actual installation environment and actual lifting object lift the limitation of distance, secondary
Supporting leg can horizontal sliding be connected to lower edge, so as to adjust the spacing between main supporting leg and secondary supporting leg, when secondary supporting leg be moved to it is specified
During position, fixing bolt is through fixed station and is threadedly connected in correspondence fixing screwed hole, with fixed joint supporting leg；Some support blocks
Upper and lower ends slide respectively be connected to wind up and lower edge between, can be according to the sliding position of actual support demand and secondary supporting leg
Put, selectively to move support block position, with lifted wind up and lower edge integrated support intensity.
It is preferred that, connecting spring is provided between the two neighboring support block in the strengthening mechanism, the strengthening mechanism
The support block that two ends are connected in the first spring, second spring, the strengthening mechanism close to main supporting leg passes through the first bullet
Spring is connected to support block of the lower edge close to secondary supporting leg in main supporting leg side, the strengthening mechanism and connected by second spring
In on secondary supporting leg.
By above-mentioned technical proposal, because secondary supporting leg can be moved left and right according to actual needs, no matter secondary supporting leg is moved
To which position, secondary supporting leg is pullled power and can be transferred to by second spring near in the support block of secondary supporting leg, near pair
The support block of supporting leg can pull other support blocks by connecting spring, be arranged such, because effective support scope of girder is located at
Between main supporting leg and secondary supporting leg, either which position secondary supporting leg is moved to, some support blocks can and then the movement of secondary supporting leg and
It is moved, and all support blocks can be distributed between main supporting leg and secondary supporting leg in time, so as to targetedly further enhance
The integrated support intensity of girder；
In addition, being provided with connecting spring, the first spring, second spring in strengthening mechanism, after secondary leg is fixed, reinforce
Mechanism can produce stronger pulling force effect to secondary supporting leg, and the fixation of secondary leg is to pass through fixed station and screw thread by fixing bolt
Fixing screwed hole is connected to, the pulling force of secondary leg can be transferred to fixed station, makes being increased against power for fixed station and fixing bolt
By force, so as to improve fixing bolt fastening force.
It is preferred that, T-shaped chute, the two ends point of each support block are equipped with the side wall relative with both lower edges that wind up
The T-shaped sliding block coordinated She You not be slid with T-shaped chute.
By above-mentioned technical proposal, when support block is moved, T-shaped sliding block can enter line slip along T-shaped chute, mobile
More stablize；When the gravity by hanging apparatus and lifting object that winds up is oppressed, the cooperation between T-shaped chute and T-shaped sliding block
Relation, helps to lift the stability of strutting system of support block.
It is preferred that, first spring, second spring, the scale lengths of connecting spring three are consistent.
Pass through above-mentioned technical proposal, when secondary supporting leg is moved, second spring, support block, connecting spring, the first spring
Between four can stress successively, the first spring, second spring, the scale lengths of connecting spring three are consistent, when second
When spring, support block, connecting spring, the first spring reach stable state, the first spring, second spring, connecting spring
Extended length keep relatively uniform automatically, i.e., the spacing between two neighboring support block can be consistent, and support block can be to upper
String produces even support.
It is preferred that, the second spring connects end close to one end of secondary supporting leg provided with hook, and the secondary supporting leg is provided with and supplies hook
Even the hook of end hook even connects hole.
By above-mentioned technical proposal, during secondary supporting leg is moved left and right, hook connects end and departed from connects hole in hook；Secondary supporting leg is with
After string is fixed by fixing bolt, then hook connected into end hook it is connected in hook and connect on hole, the support block of strengthening mechanism is by pullling power
Effect, realizes final sliding movement.
In summary, having the beneficial effect that in contrast to prior art of the invention：
(1) height is not waited main supporting leg and secondary supporting leg, the horizontal plane stabilization for adapting to different height are supported；
(2) secondary supporting leg can carry out horizontal sliding, adapt to different lifting environment；
(3) support block energy automatic uniform is distributed between main supporting leg and secondary supporting leg, so as to targetedly further enhance girder
Integrated support intensity, and using the connecting spring between two neighboring support block, lateral pull effect can be produced to secondary supporting leg,
Help to be lifted the connective stability of secondary supporting leg.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment, the agent structure situation for showing embodiment；
Fig. 2 is the structural representation of embodiment middle girder part, the structure for showing girder part；
Fig. 3 is the side view part section structural representation of embodiment middle girder part, the interfitting relationship for showing girder；
Fig. 4 is the present invention looks up structural representation of embodiment middle girder part, and the connection between secondary supporting leg and lower edge is shown for emphasis
Relation；Fig. 5 is existing portal-framed structure schematic diagram, the agent structure for showing existing door frame.
Reference：1st, girder；2nd, wind up；3rd, lower edge；4th, leg member；5th, main supporting leg；6th, secondary supporting leg；7th, web member group；8、
Web member part；9th, strengthening mechanism；10th, support block；11st, fixed station；12nd, fixing bolt；13rd, fixing screwed hole；14th, connecting spring；
15th, the first spring；16th, second spring；17th, hook connects end；18th, T-shaped chute；19th, T-shaped sliding block；20th, hook connects hole；21st, supporting leg；22、
Lifting machine.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
A kind of door frame, it is shown in Figure 1, including overall is in horizontally disposed girder 1, and branch is connected with the lower end of girder 1
Leg piece 4, leg member 4 is overall, and in being vertically arranged, the leg member 4 includes main supporting leg 5, secondary supporting leg 6, and main supporting leg 5 is connected to girder 1
Left side, secondary supporting leg 6 is connected to the right side of girder 1, wherein, the entire length size of main supporting leg 5 is more than the entire length of secondary supporting leg 6
Size, the secondary entire length size of supporting leg 6 is the 1/2 of the main entire length size of supporting leg 5；Girder 1 includes winding up 2, positioned at winding up under 2
The lower edge 3 of side, some web member groups 7, each web member group 7 are all connected to wind up between 2 and lower edge 3.
Below for above-mentioned portal-framed structure situation, from the more excellent data of portal-framed structure, the vertical height size of main supporting leg 5
For 18000mm, the vertical height size of secondary supporting leg 6 is 9000mm, and the overall lateral length size of girder 1 is 22000mm, is provided
With lower mast calculation process：
(1) LOAD FOR of door main beam 1：
Load counts qAlways=428Kg/m safety coefficients take 1.25；
Total girder deadweight qG=428*1.25=535*104；
When girder 1 bears the biggest lifting capacity positioned at span centre, the intensity of primary structure member and deformation are calculated：
(2) the upper lower edge intensity of single-beam is calculated
Lifting weight:Q=60 tons
Over-loading coefficient takes 1.25
The maximal bending moment of single-beam：
Mmax=1/4QL+1/8qL2
=1/4*75/2*1.25*25*104+1/8*0.535*252*104
=(292.96+41.79) * 104
=334.75*104N·M
The axle power of lower edge on single-beam：
Nmax=Mmax/h
=(334.75*104)/1.8=185.97*10-4Ox
Wind up 2 area:A=(2*53.5+1*24.5) * 10-4=131.5*10-4m2
Wind up 2 working stresses：
σmax=N/A=(185.97*104)/(131.5*10-4)=141.42Mpa
The area of lower edge 3：A=4*28.83*10-4=115.32*10-4m2
Wind up 2 working stresses:
σmax=N/A=(185.97*104)/(115.32*10-4)=161.26Mpa
In girder wind up 2 and the material of lower edge 3 be Q235-B, it is considered to blocking factor safety coefficient n=1.3, yield stress σs
=215Mpa, allowable stress [σ]=σs/ 1.3=165.3Mpa
Lower edge meets strength condition on girder 1.
(3) Rigidity Calculation of girder 1
When carrying weight span centre, girder 1 produces maximum defluxion, and the maximum mid-span deflection of single girder 1 is calculated using superposition principle.
fc=5qL4/(384EIz)+PL3/48EIz
The moment of inertia of the cross section centering axle of girder 1, is calculated by simplified method, the moment of inertia that only chord plane is accumulated above and below consideration,
The Rigidity Calculation of girder 1
Iy=131.5*10-4*(1.8/2)2+115.32*10-4* (1.8/2)=199.9*10-4
Fc=(PL3/48+5qL4/384)/EI
=[(37.5*253*104/48+5*0.535*254/384)*104]/EI
=(14928.2*104)/(210*109*199.9*10-4)
=0.0355m
Gantry crane Allowable deflection：L/700, i.e. 25/700=0.0357m
Practical distortion is less than Allowable deflection, and static rigidity meets code requirement.
(4) the web member part Final 8 degree Stability Checking Calculation of girder 1
Heavy load is played when girder 1 bears maximum, and near main supporting leg 5, intensity and Stability Checking Calculation in load-carrying member.This work
During condition, the shearing suffered by web member part 8 is maximum
Intensity and the stability analysis of this operating mode web member part 8 should be checked.
1st, the axle power and working stress of web member part 8
The web member part 8 of girder 1 undertakes shearing
Consider that most unfavorable combination, i.e. lifting machine 22 are located at the main side of supporting leg 5, main supporting leg 5 undertakes maximum shear and is：
Q × 1.25/2+1/2qL=(75 × 1.25/2+0.5 × 0.535 × 25) × 104
=53.56 × 104N
The area of web member part 8：A=10 × 2 × 2=40 × 10-4m2
Working stress σ=53.56 × 10 of web member part 84/40×10-4=133.9Mpa
2nd, the slenderness ratio and stability check of web member part 8
The radius of gyration:R=3.95cm.
Slenderness ratio is 1.65/ (3.95*10-2)=41.7
Primary load bearing structure part compression slenderness ratio allowable：λ=120
Actual components slenderness ratio is less than slenderness ratio allowable, and rigidity meets the requirements
The coefficient of stability：Φ=0.937
The material of web member part 8 is：Q235-B, it is considered to blocking factor safety coefficient n=1.3,
Yield stress σs=215Mpa
Allowable stress [σ]=σs/ 1.3=165Mpa
Stability allowable stress:[σw]=φ [σ]=0.937 × 165=155Mpa
Working stress 133.9Mpa is less than allowable stress 155Mpa, and strength condition is met.
(5) intensity of supporting leg, rigidity and stable calculation
Single supporting leg stress is as follows；
Q × 1.25/2+1/2qL=(75 × 1.25/2) × 104+(0.5×0.535×25)*104
=53.6 × 104N·M
Maximum axle power i.e. suffered by supporting leg is N=53.6 × 104NM, supporting leg long L=9000m, sectional area A=117.84 ×
10-4m2, the radius of gyration：R=14.75cm.
Supporting leg working stress：
σ=N/A=54.6 × 104/117.84×10-4=46.33Mpa
Slenderness ratio：λz=uL/r=7.716/0.1475=52.3
Primary load bearing structure part compression slenderness ratio allowable：λ=120
Actual components slenderness ratio is less than slenderness ratio allowable, and rigidity meets the requirements
The coefficient of stability：Ф=0.833
Stability allowable stress：[σw]=φ [σ]=0.833 × 160=133.28Mpa
Working stress 46.33Mpa is less than allowable stress 133.28Mpa, and strength condition is met.
Intensity, rigidity have been carried out to the main load-carrying member of 60 tons of door machines according to hoist design specification GB3811-1983
And the check of stability, regulation requirement is satisfied by, door machine can safe bearing load.
Wherein, shown in Figure 2,2 quantity of winding up on girder 1 are two, and the quantity of lower edge 3 is four, and all
Wind up 2 and lower edge 3 in horizontally disposed, be set in parallel each other；Each web member group 7 includes 4 web member parts 8, together
The every upper end of web member part 8 in one web member group 7 be all connected to it is same wind up 2, every two web member parts 8 lower end in same secondary bar group
It is connected to same lower edge 3；When wind up 2 oppressed by gravity when, extruding force can be conducted by 4 web member parts 8 to two lower edges 3
Place.
Referring to shown in Fig. 3 and Fig. 4, secondary supporting leg is set between lower edge 3 in split, and on the length direction of lower edge 3
Some fixing screwed holes 13 are evenly distributed with, the upper end of secondary supporting leg 6 is fixedly connected with fixed station 11, running through on the fixed station 11 has
Fixing bolt 12, fixing bolt 12 is threadedly coupled with fixing screwed hole 13, realizes the fixation between fixed station 11 and lower edge 3.
Strengthening mechanism 9 is also provided between 2 and lower edge 3 winding up, is then elaborated below for strengthening mechanism 9：
Referring to shown in Fig. 1 and Fig. 3, strengthening mechanism 9 includes some support blocks 10, and the length direction of each support block 10 is in perpendicular
It is straight to set, T-shaped chute 18 is provided with the lower wall for winding up 2, T-shaped chute 18, Mei Gezhi also is provided with the upper side wall of lower edge 3
The upper and lower ends of bracer 10 are respectively equipped with T-shaped sliding block 19, and the T-shaped sliding block 19 at two ends is engaged with T-shaped chute 18 respectively, support
Block 10 can carry out left and right sliding along the length direction of wind up 2 and lower edge 3；
Referring to shown in Fig. 1 and Fig. 3, provided with connecting spring 14 between two neighboring support block 10, and the two ends point of strengthening mechanism 9
The first spring 15, second spring 16 are not connected with, and the support block 10 close to main supporting leg 5 in strengthening mechanism 9 passes through the first bullet
Spring 15 is connected to support block 10 of the lower edge 3 close to secondary supporting leg 6 in the main side of supporting leg 5, strengthening mechanism 9 and passes through second spring
16 are connected on secondary supporting leg 6；Second spring 16 connects end 17 close to one end of secondary supporting leg 6 provided with hook, and secondary supporting leg 6 is extended upward
One boss, boss connects the hook of the hook of end 17 even provided with confession hook and connects hole 20, and the first spring 15, second spring 16, connecting spring
The scale lengths of 14 threes are consistent.
Angle analysis is conducted from power：2 are winded up by lifting machine 22 and the Action of Gravity Field straight down of a hanging object, pressure
It can simultaneously conduct to some web member parts 8, then conduct to lower edge 3, finally be transmitted to main supporting leg 5 and secondary supporting leg 6；It is same with this
When, 2 pressure of winding up can also be conducted to lower edge 3 by support block 10.
The reality of above-mentioned strengthening mechanism 9 and secondary supporting leg 6 uses cooperatively step：
Step one：Fixing bolt 12 is unclamped, hook, which connects end 17 and connects hole 20 with hook, to be separated, and length of the secondary supporting leg 6 along lower edge 3 is slided
Move, and slide onto ideal position, be locked bolt 12, and secondary supporting leg 6 is fixed on lower edge 3；
Step 2：Pull hook and connect end 17, pull power and carried out between second spring 16, connecting spring 14, the three of the first spring 15
Transmit successively, and move length direction of the support block 10 along girder 1, until hook connects end 17 and connects the hook again of hole 20 with hook
Even.
Aforesaid operations step, first, when secondary supporting leg 6 needs to be moved, hook, which connects end 17 and connects hole 20 with hook, to be separated,
The mobile difficulty of secondary supporting leg 6 can effectively be reduced；Secondly, when hook, which connects end 17 and hook, to be connected hole 20 hook connects again, the first spring is utilized
15th, second spring 16, connecting spring 14 scale lengths it is consistent the characteristics of, some support blocks 10 can be made to be uniformly distributed in master automatically
Between supporting leg 5 and secondary supporting leg 6, without personnel's arrangement.
Described above is only the exemplary embodiment of the present invention, not for limiting the scope of the invention, this hair
Bright protection domain is determined by appended claim.
Claims (9)
1. a kind of door frame, including girder (1), the leg member (4) in being vertically arranged and for producing supporting role with ground, it is special
Levying is：The leg member (4) includes main supporting leg (5), secondary supporting leg (6), and the main supporting leg (5) and secondary supporting leg (6) are connected to
The two ends of girder (1), the entire length size of the main supporting leg (5) is more than the entire length size of secondary supporting leg (6).
2. a kind of door frame according to claim 1, it is characterized in that：Secondary supporting leg (6) the entire length size is main supporting leg
(5) the 1/2 of entire length size.
3. a kind of door frame according to claim 1, it is characterized in that：The girder (1) includes winding up (2), positioned at wind up (2)
The lower edge (3) of lower section, some web member groups (7), each web member group (7) are all connected to wind up (2) between lower edge (3).
4. a kind of door frame according to claim 3, it is characterized in that：(2) total quantity of winding up on girder (1) is lower edge
(3) the 1/2 of total quantity, each web member group (7) includes every web member part in 4 web member parts (8), same web member group (7)
(8) upper end be all connected to it is same wind up (2), every two web member parts (8) lower end in same secondary bar group is connected to same lower edge
(3)。
5. a kind of door frame according to claim 3, it is characterized in that：Also include strengthening mechanism (9), the strengthening mechanism (9)
Including some support blocks (10), the upper and lower ends of each support block (10) slide to be connected to respectively and winded up (2) and lower edge (3)；
Secondary supporting leg (6) horizontal sliding is connected to lower edge (3), and the secondary supporting leg (6) is provided with fixed station (11), fixing bolt
(12), transversely arranged on the lower edge (3) to have some fixing screwed holes (13), the fixing bolt (12) passes through fixed station (11)
And be threadedly connected in correspondence fixing bolt (12) hole.
6. a kind of door frame according to claim 5, it is characterized in that：Two neighboring support block in the strengthening mechanism (9)
(10) connecting spring (14) is provided between, the two ends of the strengthening mechanism (9) are connected to the first spring (15), second spring
(16), the interior support block (10) close to main supporting leg (5) of the strengthening mechanism (9) is connected to lower edge by the first spring (15)
(3) close to main supporting leg (5) side, the support block (10) in the strengthening mechanism (9) close to secondary supporting leg (6) passes through second spring
(16) it is connected on secondary supporting leg (6).
7. a kind of door frame according to claim 5, it is characterized in that：It is described to wind up (2) and the relative side wall of both lower edges (3)
On be equipped with T-shaped chute (18), the two ends of each support block (10) are respectively equipped with slides the T-shaped cunning coordinated with T-shaped chute (18)
Block (19).
8. a kind of door frame according to claim 6, it is characterized in that：First spring (15), second spring (16), connection
The scale lengths of spring (14) three are consistent.
9. a kind of door frame according to claim 6, it is characterized in that：The second spring (16) is close to secondary supporting leg (6)
One end connects end (17) provided with hook, and the secondary supporting leg (6) connects the hook of end (17) hook even provided with confession hook and connects hole (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710216025.9A CN107055318B (en) | 2017-04-01 | 2017-04-01 | A kind of door frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710216025.9A CN107055318B (en) | 2017-04-01 | 2017-04-01 | A kind of door frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107055318A true CN107055318A (en) | 2017-08-18 |
| CN107055318B CN107055318B (en) | 2018-05-25 |
Family
ID=59602578
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710216025.9A Expired - Fee Related CN107055318B (en) | 2017-04-01 | 2017-04-01 | A kind of door frame |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000016751A (en) * | 1998-07-01 | 2000-01-18 | Hitachi Building Systems Co Ltd | Portal crane for terminal gear of escalator |
| CN201040684Y (en) * | 2007-05-14 | 2008-03-26 | 大连华锐股份有限公司 | Composite bearing for mobile machinery door type structure leg |
| CN201193183Y (en) * | 2008-02-18 | 2009-02-11 | 上海宝钢设备检修有限公司 | Crane portal frame with adjustable width and height |
| CN202465064U (en) * | 2012-03-12 | 2012-10-03 | 抚顺永茂建筑机械有限公司 | Truss type electric single-beam crane main beam |
| CN204847989U (en) * | 2015-06-10 | 2015-12-09 | 新乡市豫新起重机械有限公司 | Asymmetric swing crane; derrick of track |
| CN204873575U (en) * | 2015-08-28 | 2015-12-16 | 河南省中原奥起实业有限公司 | Can wear combined bridge crane in tunnel |
-
2017
- 2017-04-01 CN CN201710216025.9A patent/CN107055318B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000016751A (en) * | 1998-07-01 | 2000-01-18 | Hitachi Building Systems Co Ltd | Portal crane for terminal gear of escalator |
| CN201040684Y (en) * | 2007-05-14 | 2008-03-26 | 大连华锐股份有限公司 | Composite bearing for mobile machinery door type structure leg |
| CN201193183Y (en) * | 2008-02-18 | 2009-02-11 | 上海宝钢设备检修有限公司 | Crane portal frame with adjustable width and height |
| CN202465064U (en) * | 2012-03-12 | 2012-10-03 | 抚顺永茂建筑机械有限公司 | Truss type electric single-beam crane main beam |
| CN204847989U (en) * | 2015-06-10 | 2015-12-09 | 新乡市豫新起重机械有限公司 | Asymmetric swing crane; derrick of track |
| CN204873575U (en) * | 2015-08-28 | 2015-12-16 | 河南省中原奥起实业有限公司 | Can wear combined bridge crane in tunnel |
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| Publication number | Publication date |
|---|---|
| CN107055318B (en) | 2018-05-25 |
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