CN206751208U - Gantry crane flexible legs - Google Patents
Gantry crane flexible legs Download PDFInfo
- Publication number
- CN206751208U CN206751208U CN201720486486.3U CN201720486486U CN206751208U CN 206751208 U CN206751208 U CN 206751208U CN 201720486486 U CN201720486486 U CN 201720486486U CN 206751208 U CN206751208 U CN 206751208U
- Authority
- CN
- China
- Prior art keywords
- doorframe
- flexible legs
- land
- gantry crane
- extra large
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model provides a kind of gantry crane flexible legs, using doorframe diagonal-bracing type structure, the gantry crane flexible legs include preceding crossbeam, rear crossbeam, the doorframe structure and ladder frame of land side flexible legs, the doorframe structure of wherein described land side flexible legs is arranged between the preceding crossbeam and the rear crossbeam, the ladder frame is arranged on the doorframe structure of land side flexible legs, and double pull bar is hinged between the ladder frame and the preceding crossbeam.The utility model gantry crane flexible legs had both released the moment of flexure of doorframe column, avoid cart wheel " gnawing rail " phenomenon, reduce the load that cart walking mechanism is run in extra large land side direction deflection, and can enough greatly improves the rigidity in gantry crane trolley travelling direction, shakes frequency, shock resistance certainly, the depth of section and thickness of slab size of contact crossbeam are significantly reduced simultaneously, and positive effect is served for structure loss of weight.
Description
Technical field
Ports handling machine is the utility model is related to, more particularly to a kind of gantry crane flexible legs, it uses doorframe diagonal-bracing type
Structure.
Background technology
Gantry crane is the capital equipment during container handling, and it plays highly important during container handling
Role.
After China's accession to the WTO, foreign trade is continuously increased, and the handling capacity of container climbs new peak every year.State
Border Container Shipping Market competition, what larger-sized vessel was shipping company to make every effort to that existence takes cuts operating costs
Effective ways.2011, world shipping giant's MAERSK LINE company announced to order 10 overlength, ultra-wide, superelevation in the world
(Triple E types) 18000 casees container ships.And on harbour existing gantry crane it is limited in one's ability, can not meet to Triple E types
The handling requirement of ship.Itself main reason is that：The castor of preceding crossbeam falls short of, and lifting altitude is not high enough on rail, raising, dolly
Speed is not fast enough.If handling task can not be completed in a short time, meet the requirement that ship is departed from port rapidly, this will have influence on
Dock operation efficiency, reduce the actual gain of harbour.
In order to adapt to inexorable trend that container ship increasingly maximizes, it is necessary to load and unload its equipment --- gantry crane is accordingly big
Type, i.e., develop to " three supertypes " direction of overlength outreach, super large lifting altitude and over height stacking operation speed.
Gantry crane lifting altitude of new generation is more than 50 meters, and outreach is more than 70 meters, and sling load weight, the speed of service are high.Gantry crane
Change cause deadweight to increase greatly, but the bearing capacity for the harbour that come into operation is limited, so the deadweight of gantry crane of new generation must be protected
Hold with conventional gantry crane same level, it is desirable to for complete machine from heavy and light, handling good, energy-conserving and environment-protective, this is traditional gantry crane designing technique
The brand-new problem faced, except super large lifting altitude and super large outreach need to be overcome to trigger driver operation difficulty, operating efficiency low
Outside, more to consider how that solving the deadweight that gantry crane maximization is brought controls (meeting the existing bearing capacity of harbour), the rigidity of structure, knot
A series of problems, such as structure is tired, antiseismic.
The unloading process of gantry crane is mainly sling container by the dolly in gantry crane, and lifting dolly will collect along track
Container, is then placed on truck, it is complete to put case by the top for the truck cased from one end handling of gantry crane to the gantry crane other end
Bi Hou, lifting dolly return to the ship top of the extra large side container of gantry crane, carry out the lifting of next container, the shipment process of gantry crane
As reverse operation.
Therefore, the key operation direction of gantry crane is trolley travelling direction, and the rigidity and frequency in trolley travelling direction are particularly heavy
Will, and doorframe is the pith for supporting whole gantry crane superstructure, so this area needs to design new gantry crane doorframe
Structure, make the light-weight design that gantry crane is carried out while gantry crane trolley travelling direction structure rigidity is ensured.
Utility model content
The technical problems to be solved in the utility model be in order to overcome in the prior art maximize gantry crane deadweight control compared with
Difficulty, the rigidity of structure, structural fatigue and it is antiseismic etc. more complicated the defects of, there is provided a kind of gantry crane flexible legs.
The utility model is that solve above-mentioned technical problem by following technical proposals：
A kind of gantry crane flexible legs, using doorframe diagonal-bracing type structure, its feature is, before the gantry crane flexible legs include
Crossbeam, rear crossbeam, the doorframe structure and ladder frame of land side flexible legs, wherein the doorframe structure of land side flexible legs is set
Between the preceding crossbeam and the rear crossbeam, the ladder frame is arranged on the doorframe structure of land side flexible legs, institute
State and be hinged with double pull bar between ladder frame and the preceding crossbeam.
It is preferred that the doorframe structure of land side flexible legs include land heel post, land side entablature, land side sill,
Contact crossbeam, extra large heel post, extra large side entablature and extra large side sill；
The land heel post, the contact crossbeam and the extra large heel post are interconnected to form a frame-shaped construction；
Land side entablature is arranged on the upper end of the land heel post, and it is edge-on that land side sill is arranged on the land
The lower end of post；
The extra large side entablature is arranged on the upper end of the extra large heel post, and it is edge-on that the extra large side sill is arranged on the sea
The lower end of post.
It is preferred that the doorframe structure of land side flexible legs also includes triatic stay and doorframe hound, the level
Strut is connected horizontally between the land heel post and the extra large heel post；
The left upper end of the doorframe hound is connected with the land heel post, the triatic stay, the doorframe diagonal brace
The bottom righthand side of bar is connected with the crossbeam that contacts.
It is preferred that the extended line of the left upper end center line of the doorframe hound and the left end center line of the triatic stay
Extended line intersect on the central cross-section of the land heel post.
It is preferred that the doorframe structure of land side flexible legs also includes ladder frame rear pole and ladder frame column, it is described
Ladder frame column one end is connected with the top of the extra large side entablature, and the other end is connected to ladder frame, the ladder frame rear pole
One end be connected with land side entablature, the other end of the ladder frame rear pole is connected with the ladder frame.
It is preferred that the connection of the left upper end of the doorframe hound and the land heel post is designed to crisscross joint plate,
The gusset plate inserts the tube interior of the doorframe hound.
It is preferred that the bottom righthand side of the doorframe hound is designed to crisscross joint plate with the connection for contacting crossbeam,
The gusset plate inserts the tube interior of the doorframe hound.
It is preferred that the extended line of the center line of the bottom righthand side of the doorframe hound is intersected in extra large side cart track
The heart.
It is preferred that the doorframe hound, the triatic stay and the extra large heel post form stable triangular structure.
It is preferred that the land heel post, land side entablature, land side sill, the contact crossbeam, the sea
Heel post, the extra large side entablature and the extra large side sill are casing girder construction；
The doorframe hound, the triatic stay, the ladder frame rear pole and the ladder frame column are pipe
Part structure.
Positive effect of the present utility model is：
The utility model gantry crane flexible legs had both released the moment of flexure of doorframe column, and it is existing to avoid cart wheel " gnawing rail "
As reducing the load that cart walking mechanism is run in extra large land side direction deflection, and can enough greatly improves gantry crane trolley travelling side
To rigidity, from shake frequency, shock resistance, while significantly reduce contact crossbeam depth of section and thickness of slab size, for knot
Structure loss of weight serves positive effect.
Brief description of the drawings
The above and other feature of the utility model, property and advantage are by by with reference to the accompanying drawings and examples
Describing and become apparent, identical reference represents identical feature all the time in the accompanying drawings, wherein：
Fig. 1 is the structural representation of the utility model gantry crane flexible legs.
Fig. 2 is the main view of the doorframe diagonal-bracing type structure of land heel post flexible connection in the utility model gantry crane flexible legs
Figure.
Fig. 3 is the side view of the doorframe diagonal-bracing type structure of land heel post flexible connection in the utility model gantry crane flexible legs
Figure.
Fig. 4 is that doorframe hound center line extended line intersects at extra large side cart track in the utility model gantry crane flexible legs
Center.
Fig. 5 is the front view of land side flexible legs hinge in the utility model gantry crane flexible legs.
Fig. 6 is the side view of land side flexible legs hinge in the utility model gantry crane flexible legs.
Fig. 7 is the schematic diagram of the left upper end crisscross joint plate of doorframe hound in the utility model gantry crane flexible legs.
Fig. 8 is the sectional view splitted in Fig. 7 along K-K lines.
Fig. 9 is the schematic diagram of the bottom righthand side crisscross joint plate of doorframe hound in the utility model gantry crane flexible legs.
Figure 10 is the sectional view splitted in Fig. 9 along W-W lines.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, below in conjunction with accompanying drawing to this practicality
New embodiment elaborates.
Embodiment of the present utility model is described with detailed reference to accompanying drawing now.Now with detailed reference to of the present utility model excellent
Embodiment is selected, its example is shown in the drawings.In the case of any possible, it will be marked and using identical in all of the figs
Represent same or analogous part.In addition, although the term used in the utility model is selected from public term
Select, but some terms mentioned in the utility model specification are probably applicant to be selected by his or her judgement
, its detailed meanings illustrates in the relevant portion of description herein.In addition, it is desirable to not only by used actual art
Language, and the meaning that is also to be contained by each term understands the utility model.
Fig. 1 is the structural representation of the utility model gantry crane flexible legs.Fig. 2 is in the utility model gantry crane flexible legs
The front view of the doorframe diagonal-bracing type structure of land heel post flexible connection.Fig. 3 is that land is edge-on in the utility model gantry crane flexible legs
The side view of the doorframe diagonal-bracing type structure of post flexible connection.Fig. 4 is in doorframe hound in the utility model gantry crane flexible legs
Heart line extended line intersects at extra large side cart orbit centre.Fig. 5 is flexible legs hinge in land side in the utility model gantry crane flexible legs
The front view of axle.Fig. 6 is the side view of land side flexible legs hinge in the utility model gantry crane flexible legs.Fig. 7 is this practicality
The schematic diagram of the left upper end crisscross joint plate of doorframe hound in new gantry crane flexible legs.Fig. 8 is to be cutd open in Fig. 7 along K-K lines
The sectional view opened.Fig. 9 is the signal of the bottom righthand side crisscross joint plate of doorframe hound in the utility model gantry crane flexible legs
Figure.Figure 10 is the sectional view splitted in Fig. 9 along W-W lines.
As shown in Figures 1 to 10, the utility model discloses a kind of gantry crane flexible legs, using doorframe diagonal-bracing type structure,
It includes the doorframe structure 30 and ladder frame 40 of preceding crossbeam 10, rear crossbeam 20, land side flexible legs, wherein land side flexible legs
Doorframe structure 30 is arranged between preceding crossbeam 10 and rear crossbeam 20, and ladder frame is arranged on to the doorframe structure 30 of land side flexible legs
On, double pull bar 50 is hinged between ladder frame 40 and preceding crossbeam 10.
Preferably, the doorframe structure 30 of land side flexible legs includes land heel post 31, land side entablature 32, land side sill
33rd, crossbeam 34, extra large heel post 35, extra large side entablature 36 and extra large side sill 37 are contacted；Land heel post 31, contact crossbeam 34 and sea
Heel post 35 is interconnected to form a frame-shaped construction, and land side entablature 32 is arranged on to the upper end of land heel post 31, horizontal under the side of land
Beam 33 is arranged on the lower end of land heel post 31.Extra large side entablature 32 is arranged on the upper end of extra large heel post 35, and extra large side sill 37 is set
Put in the lower end of extra large heel post 35.
Further, the doorframe structure 30 of land side flexible legs also includes triatic stay 38 and doorframe hound 39, by water
Bar 38 is supported to be connected horizontally between land heel post 31 and extra large heel post 35.In the left upper end and land heel post of doorframe hound 39
31st, triatic stay 38 is connected, and the bottom righthand side of doorframe hound 39 is connected with contacting crossbeam 34.
Especially, the left end center of the extended line of the left upper end center line of doorframe hound 39 herein and triatic stay 38
The extended line of line is intersected on the central cross-section of land heel post 31.
Further, the doorframe structure 30 of land side flexible legs also includes ladder frame rear pole 60 and ladder frame column
61, one end of ladder frame column 61 is connected with the top of extra large side entablature 36, the other end is connected to ladder frame 40, after ladder frame
One end of strut 60 is connected with land side entablature 32, and the other end of ladder frame rear pole 60 is connected with ladder frame 40.
The left upper end of doorframe hound 39 herein is designed to crisscross joint plate 80 with the connection of land heel post 31, will save
Point plate 80 inserts the tube interior of doorframe hound 39.Similarly, connection of the bottom righthand side of doorframe hound 39 with contacting crossbeam 34
Crisscross joint plate is designed to, gusset plate 80 is inserted to the tube interior of the doorframe hound, and doorframe hound bottom right
The extended line of end center line intersects at extra large side cart orbit centre.
The extended line of doorframe hound center line intersects at the extra large orbit centre of side cart 70, doorframe hound, triatic stay,
Extra large heel post three forms stable three-point support structure, without increase doorframe column section, thickness of slab size, above and below extra large land side it is horizontal
The gantry crane rigidity in trolley travelling direction, certainly shake frequency and shock resistance in handling operation can be ensured in the case of depth of beam,
The depth of section and thickness of slab size of contact crossbeam are significantly reduced simultaneously, and loss of weight effect is played to steel construction.
The extended line of the center line of the bottom righthand side of doorframe hound 39 intersects at the center of the extra large track of side cart 70.Here
Doorframe hound 39, triatic stay 38 and extra large heel post 35 form stable triangular structure, cut without increasing doorframe column
It can ensure gantry crane trolley travelling direction in handling operation in the case of face, thickness of slab size, extra large land side lower and upper cross-member height
Rigidity, certainly shake frequency and shock resistance, while the depth of section and thickness of slab size of contact crossbeam are significantly reduced, steel construction is risen
Acted on to loss of weight.In geometric figure, triangular structure is simple, stability is high, so the doorframe diagonal-bracing type knot of kind flexible legs
Structure improves the rigidity and the natural frequency of vibration in gantry crane trolley travelling direction.
Meanwhile the design of crisscross joint plate insertion doorframe hound improves the build-in ability at doorframe hound both ends,
The slenderness ratio of doorframe hound is effectively reduced, avoids strut buckle in compression.The both ends of doorframe hound 39 use crisscross joint
The design of plate, its caliber can be reduced to 1.2 meters by 1.3 meters.
According to said structure, for the big gauge gantry crane of ultra-large type, in order to discharge doorframe column moment of flexure, avoid cart wheel with
" gnawing rail " phenomenon occurs between track, while in order to reduce cart walking mechanism sea land side direction deflection performance load, by land side
Column 31 is designed to that flexibility is hinged with contacting the junction of crossbeam 34, i.e. stud connection (as shown in Figure 5).The rotation of this connection
The free degree is release conditions, i.e., land heel post 31 can produce relative rotation at hinge 311 with contacting crossbeam 34, to discharge doorframe
Column moment of flexure, cart wheel " gnawing rail " phenomenon is avoided, reduce deflection performance load of the cart walking mechanism in extra large land side direction.
But after land heel post is designed to flexible connection, rigidity and the natural frequency of vibration of the gantry crane in trolley travelling direction have
Declined.In order to improve rigidity and the natural frequency of vibration of the gantry crane in trolley travelling direction, land heel post 31, land side entablature 32, land
Side sill 33, contact crossbeam 34, extra large heel post 35, extra large side entablature 36 and extra large side sill 37 are casing girder construction.Door
Frame hound 39, triatic stay 38, ladder frame rear pole 60 and ladder frame column 61 are round fitting structure.
In summary, the doorframe diagonal-bracing type structure of gantry crane flexible legs of the present utility model disclosure satisfy that gantry crane cart gauge
The rigidity of flexible legs doorframe diagonal-bracing type structure more than 35 meters, certainly shake frequency and shock resistance requirement.Land heel post is with contacting
Crossbeam junction is designed to that flexibility is hinged, and the rotational freedom of this connection is release conditions, i.e., land heel post is at hinge 311
It can be produced relative rotation with contacting crossbeam.The extended line of doorframe hound left upper end center line and triatic stay left end center line
Extended line is intersected on the heel post central cross-section of land, and the connection design across section of doorframe hound left upper end and column
Point plate, gusset plate insertion strut tube interior.The bottom righthand side of doorframe hound is tilted towards extra large heel post, with contacting crossbeam sea side
Connection, connecting node are designed to crisscross joint plate, and gusset plate inserts strut tube interior, and in doorframe hound bottom righthand side
The extended line of heart line intersects at extra large side cart orbit centre.So doorframe hound, triatic stay, extra large heel post three are formed surely
Fixed triangular structure.So kind flexible legs doorframe diagonal-bracing type structure improve gantry crane trolley travelling direction rigidity and from
Vibration frequency.Meanwhile the design of crisscross joint plate insertion doorframe hound improves the build-in ability at doorframe hound both ends,
The slenderness ratio of doorframe hound is effectively reduced, avoids strut buckle in compression.
The doorframe diagonal-bracing type structure of the utility model gantry crane flexible legs disclosure satisfy that gantry crane cart gauge is more than 35 meters
The structure type of the doorframe diagonal-bracing type structure of the flexible legs of this example of flexible legs doorframe diagonal-bracing type structure is simple, compared to tradition
Doorframe structure, lighter from weight, production cost is lower.Cart wheel " gnawing rail " phenomenon is which obviated, reduces large vehicle walking
The load that mechanism is run in extra large land side direction deflection, and can enough greatly improve gantry crane trolley travelling direction rigidity, from shake frequency,
Shock resistance, while the depth of section and thickness of slab size of contact crossbeam are significantly reduced, served for structure loss of weight positive
Effect.
Although the foregoing describing specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely illustrative of, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
Member can make numerous variations or repair to these embodiments on the premise of without departing substantially from principle of the present utility model and essence
Change, but these changes and modification each fall within the scope of protection of the utility model.
Claims (10)
1. a kind of gantry crane flexible legs, using doorframe diagonal-bracing type structure, it is characterised in that the gantry crane flexible legs include preceding big
Beam, rear crossbeam, the doorframe structure and ladder frame of land side flexible legs, wherein the doorframe structure of land side flexible legs is arranged on
Between the preceding crossbeam and the rear crossbeam, the ladder frame is arranged on the doorframe structure of land side flexible legs, described
Double pull bar is hinged between ladder frame and the preceding crossbeam.
2. gantry crane flexible legs as claimed in claim 1, it is characterised in that the doorframe structure of land side flexible legs includes
Land heel post, land side entablature, land side sill, contact crossbeam, extra large heel post, extra large side entablature and extra large side sill；
The land heel post, the contact crossbeam and the extra large heel post are interconnected to form a frame-shaped construction；
Land side entablature is arranged on the upper end of the land heel post, and land side sill is arranged on the land heel post
Lower end；
The extra large side entablature is arranged on the upper end of the extra large heel post, and the extra large side sill is arranged on the extra large heel post
Lower end.
3. gantry crane flexible legs as claimed in claim 2, it is characterised in that the doorframe structure of land side flexible legs also wraps
Triatic stay and doorframe hound are included, the triatic stay is connected horizontally between the land heel post and the extra large heel post；
The left upper end of the doorframe hound is connected with the land heel post, the triatic stay, the doorframe hound
Bottom righthand side is connected with the crossbeam that contacts.
4. gantry crane flexible legs as claimed in claim 3, it is characterised in that the left upper end center line of the doorframe hound
The extended line of the left end center line of extended line and the triatic stay is intersected on the central cross-section of the land heel post.
5. gantry crane flexible legs as claimed in claim 3, it is characterised in that the doorframe structure of land side flexible legs also wraps
Ladder frame rear pole and ladder frame column are included, described ladder frame column one end is connected with the top of the extra large side entablature, another
End is connected to ladder frame, and one end of the ladder frame rear pole is connected with land side entablature, the ladder frame rear pole
The other end is connected with the ladder frame.
6. gantry crane flexible legs as claimed in claim 3, it is characterised in that the left upper end of the doorframe hound and the land
The connection of heel post is designed to crisscross joint plate, and the gusset plate inserts the tube interior of the doorframe hound.
7. gantry crane flexible legs as claimed in claim 3, it is characterised in that the bottom righthand side of the doorframe hound with it is described
It is that the connection of crossbeam is designed to crisscross joint plate, the gusset plate inserts the tube interior of the doorframe hound.
8. gantry crane flexible legs as claimed in claim 3, it is characterised in that the center line of the bottom righthand side of the doorframe hound
Extended line intersect at the center of extra large side cart track.
9. the gantry crane flexible legs as described in claim 3-7 any one, it is characterised in that the doorframe hound, described
Triatic stay and the extra large heel post form stable triangular structure.
10. gantry crane flexible legs as claimed in claim 9, it is characterised in that the land heel post, land side entablature,
Land side sill, contact crossbeam, the extra large heel post, the extra large side entablature and the extra large side sill are case
Body girder construction；
The doorframe hound, the triatic stay, the ladder frame rear pole and the ladder frame column are pipe part knot
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720486486.3U CN206751208U (en) | 2017-05-04 | 2017-05-04 | Gantry crane flexible legs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720486486.3U CN206751208U (en) | 2017-05-04 | 2017-05-04 | Gantry crane flexible legs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206751208U true CN206751208U (en) | 2017-12-15 |
Family
ID=60616189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720486486.3U Withdrawn - After Issue CN206751208U (en) | 2017-05-04 | 2017-05-04 | Gantry crane flexible legs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206751208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106946154A (en) * | 2017-05-04 | 2017-07-14 | 上海振华重工(集团)股份有限公司 | Bank bridge flexible legs |
-
2017
- 2017-05-04 CN CN201720486486.3U patent/CN206751208U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106946154A (en) * | 2017-05-04 | 2017-07-14 | 上海振华重工(集团)股份有限公司 | Bank bridge flexible legs |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203348910U (en) | Tank container | |
| CN206751208U (en) | Gantry crane flexible legs | |
| CN106946154B (en) | Gantry crane flexible legs | |
| CN206307905U (en) | Full trussed girder bank bridge | |
| CN105398951A (en) | Light small shore bridge | |
| CN205838362U (en) | A kind of triangle tube structure containment type node list main beam structure | |
| CN106477453B (en) | The gantry crane of three pieces open type truss structure crossbeam and the application crossbeam | |
| CN106395619B (en) | Truss-like gantry crane girder and truss-like gantry crane | |
| CN101475020A (en) | Dump barrow | |
| CN205973615U (en) | Dual fixed elevating platform | |
| CN203699710U (en) | Quayside container crane with elevating type truss girder and three trolleys | |
| CN207177328U (en) | One kind building reinforces column | |
| CN201382809Y (en) | Truck scale weighting platform provided with strengthening frame | |
| CN106429828B (en) | Full trussed girder gantry crane | |
| CN209585298U (en) | A kind of large-span prestressed beam-string structure drag-line support welding sphere joints | |
| CN210558850U (en) | Fixed X-shaped hanger upper frame | |
| CN207208322U (en) | Lightweight vehicle frame and motorcycle | |
| CN208144039U (en) | Bacteria frame | |
| CN206345605U (en) | Truss-like bank bridge girder and truss-like bank bridge | |
| CN207974239U (en) | A kind of petrochemical industry crosses over steel truss | |
| CN201761559U (en) | Large-tonnage mudflat transporter with lifting platform | |
| CN206345579U (en) | It is a kind of can right-angled door-opened lift car | |
| CN204979706U (en) | Pylon support | |
| CN215048164U (en) | Shore bridge | |
| CN107651078A (en) | Motorcycle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171215 Effective date of abandoning: 20181120 |
|
| AV01 | Patent right actively abandoned |