CN108842532A - Track girder for hanging type aerial train track system - Google Patents
Track girder for hanging type aerial train track system Download PDFInfo
- Publication number
- CN108842532A CN108842532A CN201810924387.8A CN201810924387A CN108842532A CN 108842532 A CN108842532 A CN 108842532A CN 201810924387 A CN201810924387 A CN 201810924387A CN 108842532 A CN108842532 A CN 108842532A
- Authority
- CN
- China
- Prior art keywords
- track girder
- manhole
- access cover
- track
- main body
- 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.)
- Pending
Links
- 238000012423 maintenance Methods 0.000 claims abstract description 12
- 238000005273 aeration Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 2
- 230000008439 repair process Effects 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003351 stiffener Substances 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/08—Tracks for mono-rails with centre of gravity of vehicle above the load-bearing rail
- E01B25/10—Mono-rails; Auxiliary balancing rails; Supports or connections for rails
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/22—Tracks for railways with the vehicle suspended from rigid supporting rails
- E01B25/24—Supporting rails; Auxiliary balancing rails; Supports or connections for rails
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention belongs to monorail train technical fields, specifically provide a kind of track girder for hanging type aerial train track system.Present invention seek to address that the structure of existing track girder is bad, the problem of being difficult to repair the running gear in track girder so as to cause maintenance personal.Thus, track girder of the invention includes main body, the manhole being arranged in main body and the access cover being connected with main body, the present invention in main body by being arranged manhole, technical staff is rapidly entered in track girder by manhole, to be overhauled to the structure in track girder, so that the service work of technical staff is effectively simplified；Simultaneously, in track girder without when overhauling, access cover can be covered to manhole, to effectively prevent the problem of external water and impurity are by damaging running gear in manhole injection beam, and then while facilitating technical staff to overhaul, additionally it is possible to the normal use of track girder be effectively ensured.
Description
Technical field
The invention belongs to monorail train technical fields, specifically provide a kind of rail for hanging type aerial train track system
Road beam.
Background technique
With the continuous development of urban construction, communications and transportation pressure increasingly increases, and has only relied on the transport capacity on ground
It is difficult to meet the needs of people, therefore, people start to research and develop overhead rail train.Overhead rail train (referred to as empty rail) is suspension
Formula monorail traffic system, track girder is square ON TRAINS, is supported in the sky by steel or cement post, train can be directly in track
The lower section of beam is run.Empty rail can move to the traffic on ground in the air, have without extending the existing highway facilities in city
Alleviate the advantage of urban transportation problem.Especially in recent years, empty rail has begun comes into operation in some cities.
Specifically, existing rail system includes successively being joined end to end by multiple track girders and being formed similar tunnel-shaped
The running gear in channel, monorail train can walk in the channels, so that train be driven to walk below track girder.Walking dress
It sets once reproducing failure, maintenance personal generally requires just to can enter in the channel from the both ends in channel or bifurcation, and also needs
The relatively long distance that walk in the channel gets to repair location, very time-consuming and laborious so as to cause its maintenance process.
Correspondingly, this field needs a kind of new track girder for hanging type aerial train track system above-mentioned to solve
Problem.
Summary of the invention
In order to solve the above problem in the prior art, in order to which the structure for solving existing track girder is bad, so as to cause
Maintenance personal is difficult to repair the problem of running gear in track girder, and the present invention provides one kind to arrange for hanging type aerial
The track girder of vehicle rail system, the track girder include main body, setting manhole on the body and with the main body
Connected access cover, the access cover can be covered to the manhole.
In the optimal technical scheme of the above-mentioned track girder for hanging type aerial train track system, the manhole is set
It sets on the top plate of the main body.
In the optimal technical scheme of the above-mentioned track girder for hanging type aerial train track system, the track girder is also
Including safeguard structure, the edge of the manhole is arranged in the safeguard structure in an orbiting manner.
In the optimal technical scheme of the above-mentioned track girder for hanging type aerial train track system, the safeguard structure
For the annular protrusion upwardly extended along the edge of the manhole, in the case of the access cover fastens in place, the maintenance
Lid fits with the annular protrusion.
In the optimal technical scheme of the above-mentioned track girder for hanging type aerial train track system, the annular protrusion
On be provided at least one aeration structure.
In the optimal technical scheme of the above-mentioned track girder for hanging type aerial train track system, the aeration structure
For the notch being arranged on the annular protrusion.
In the optimal technical scheme of the above-mentioned track girder for hanging type aerial train track system, the annular protrusion
On be additionally provided with cushioning members, the access cover fasten in place in the case of, the access cover by the cushioning members with
The annular protrusion is connected.
In the optimal technical scheme of the above-mentioned track girder for hanging type aerial train track system, on the top plate also
It is provided at least one reinforcing rib, the reinforcing rib is arranged near the manhole.
In the optimal technical scheme of the above-mentioned track girder for hanging type aerial train track system, the manhole
Shape is round or oval.
In the optimal technical scheme of the above-mentioned track girder for hanging type aerial train track system, the access cover with
It is pivotally connected to the main body.
It will be appreciated to those of skill in the art that in the inventive solutions, of the invention is empty for suspension type
The track girder of middle train track system includes main body, setting manhole on the body and the inspection being connected with the main body
It builds, the present invention rapidly enters technical staff by the manhole by the way that manhole is arranged on the body
In the track girder, so as to in the track girder structure or running gear overhaul so that the inspection of technical staff
Work is repaired effectively to be simplified；And in the track girder it is not necessary that when overhauling, the access cover can be covered to the manhole
On, running gear is caused to damage so that external water and impurity be effectively prevent to enter in the track girder by the manhole
Bad problem, and then while facilitating technical staff to overhaul, additionally it is possible to the normal use of the track girder is effectively ensured.
Detailed description of the invention
Fig. 1 is the overall structure diagram of track girder of the invention；
Fig. 2 is the partial structural diagram of track girder of the invention.
Appended drawing reference：11, main body；111, top plate；12, manhole；13, access cover；14, annular protrusion；141, notch；
15, cushioning members；16, shaft.
Specific embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining technical principle of the invention, it is not intended that limit the scope of the invention.This field skill
Art personnel, which can according to need, makes adjustment to it, to adapt to specific application.For example, although rail described in specification
The main body of road beam has specific structure and shape；But the structure to the main body and shape do not make any limit to the present invention
System.The change of this specific structure and shape falls within protection of the invention without departing from basic principle of the invention
Within the scope of.
It should be noted that in the description of the present invention, term " on ", "lower", "left", "right", "front", "rear", " in
The direction of the instructions such as the heart ", "vertical", "horizontal", "inner", "outside" or the term of positional relationship be direction based on the figure or
Positional relationship, this is intended merely to facilitate description, rather than indication or suggestion described device or element must have specific side
Position is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition it is also necessary to explanation, in the description of the present invention unless specifically defined or limited otherwise, term " peace
Dress ", " connected ", " connection ", " cooperation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
It is logical.To those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
It include successively being joined end to end by multiple track girders and being formed based on the existing rail system proposed in background technique
Similar tunnel-shaped channel, the running gear of monorail train can walk in the channels, to drive train under track girder
Side's walking.Once running gear breaks down in the channel, maintenance personal is generally required from the both ends in channel or bifurcation ability
Into in the channel, and it also requires walking relatively long distance gets to repair location in the channel, repaired so as to cause it
Cheng Shifen is time-consuming and laborious.For this purpose, the present invention provides a kind of track girder for hanging type aerial train track system, the rail
Road beam includes main body, setting manhole on the body and the access cover being connected with the main body, the access cover energy
In enough coverings to the manhole.
It is understood that on the one hand, the present invention is by being arranged manhole in the main body of the track girder, so that technology
Personnel can be rapidly introduced into the inside of track girder by the manhole, so as to the structure or walking dress in the track girder
It sets and is overhauled；In other words, technical staff can be rapidly entered in different track girders by the manhole, to quickly arrive
Up to the position of failure, so that the service work of technical staff is effectively simplified.Meanwhile on the other hand, the present invention
Be additionally provided with the access cover being connected with the main body, the rail system without overhaul when, the access cover can cover to
On the manhole, so that external water and impurity be effectively prevent to enter in the track girder by the manhole to described
The problem of running gear in the internal structure of track girder and the track girder damages, and then technical staff is being facilitated to examine
While repairing, additionally it is possible to the normal use of the track girder be effectively ensured.
Referring initially to Fig. 1, which is the overall structure diagram of track girder of the invention.As shown in Figure 1, rail of the invention
Road beam includes main body 11, setting manhole 12 on the main body 11 and the access cover 13 being connected with main body 11, and the present invention passes through
Manhole 12 is set on the main body 11, technical staff is rapidly entered in the track girder by manhole 12, so as to
To in the track girder structure or running gear overhaul so that the service work of technical staff obtains effective letter
Change.Meanwhile when the rail system is not necessarily to overhaul, access cover 13 can be covered to manhole 12, to effectively prevent outer
The water and impurity in portion enter in the track girder the problem of damaging to running gear by manhole 12, and then convenient
While technical staff overhauls, additionally it is possible to the normal use of the track girder be effectively ensured.
It will be appreciated to those of skill in the art that the present invention does not impose any restrictions the specific structure of main body 11, technology
Personnel can be according to the specific structure of actual use demand sets itself main body 11；Meanwhile the present invention is not also to manhole 12
Structure and shape impose any restrictions, as long as technical staff can be entered in the track girder by manhole 12.In addition, this
Invention does not impose any restrictions the connection type between access cover 13 and main body 11 also, as long as access cover 13 can be covered to maintenance
On hole 12.
It is further preferred that manhole 12 is arranged on the top plate 111 of main body 11, since the bottom plate of the track girder is to hold
The significant points of monorail train are carried, therefore, manhole 12, which is arranged on the bottom plate of track girder, will necessarily have certain safety
Hidden danger；Meanwhile and since the side plate of the track girder needs to bear most of flexural stress of the track girder, and be arranged
The directive wheel and steady wheel of the running gear two sides are also required to the support of side plate, and therefore, manhole 12 is arranged in track girder
Side plate on obviously there is also some security risks.In consideration of it, preferably manhole 12 is arranged on top plate 111 by the present invention, when
So, technical staff can also sets itself manhole 12 according to the actual situation setting position.
Further, in the preferred embodiment, there are two manholes 12 for setting on the track girder, and the two
Manhole 12 is separately positioned on the part by two close end along its length of top plate 111.It is understood that top plate 111
Each part necessarily has different stress conditions, and the both ends of the track girder are usually all connected with support post and obtain
Support, therefore, the part by two close end of top plate 111 is necessarily on top plate 111 by the smallest part of combined stress.This is preferred real
Apply example by by manhole 12 top plate 111 is set can be more efficiently to the track by the smallest part of combined stress
Beam forms protection, so that the security performance of the track girder be effectively ensured.It will be appreciated to those of skill in the art that each rail
Road beam all has different stress conditions, and technical staff can be according to the different situations sets itself manhole 12 of the track girder
Specific setting position.
In addition, manhole 12 is preferably arranged to round or ellipse in order to minimize the problems in stress collection, thus
Effectively broken line inflection point position is avoided to be easy to appear the problems in stress collection, and then the security performance of the track girder is effectively ensured.
Meanwhile in order to guarantee that the two sides of the track girder can be more uniformly stressed, it is preferable that manhole 12 is centrally disposed in top
On the middle line of plate 111, to guarantee manhole 12 on the track girder two sides influence having the same, to further effectively protect
Demonstrate,prove the security performance of the track girder.It will be appreciated to those of skill in the art that technical staff can also be according to actual use
Shape, quantity and the set-up mode of situation sets itself manhole 12.
Referring next to Fig. 2, which is the partial structural diagram of track girder of the invention.Further, as shown in Fig. 2,
The edge of manhole 12 upwardly extends and forms annular protrusion 14；On the one hand, since annular protrusion 14 is higher than top plate 111, thus
Ponding on top plate 111 is stopped by annular protrusion 14 without being entered in the track girder by manhole 12
Portion, and then effective protection is formed to the internal structure of the track girder；On the other hand, since technical staff needs to pass through manhole
The 12 disengaging track girders, therefore, annular protrusion 14 can come as the safeguard structure of manhole 12 protection technique personnel not by
The edge torn of manhole 12, to play the role of being effectively protected to technical staff.Skilled artisans appreciate that
It is, although safeguard structure described in this preferred embodiment is annular protrusion 14；But technical staff obviously can also be according to reality
Safeguard structure described in the service condition sets itself of border, for example, in rubber-coated protective case in the edge of manhole 12 etc., as long as described
The edge that manhole 12 can be arranged in safeguard structure in an orbiting manner carrys out protection technique personnel and is not scratched.
Further, it is arranged jagged 141 on annular protrusion 14, in the case where the lid of access cover 13 closes in place, the rail
The inner space of road beam can be in contact by notch 141 with outer gas stream.Due to the inside of the track girder belong to it is relatively close
The space closed, when the track girder is by long-time sunshine, the temperature of the track girder can be increased sharply；Therefore, of the invention
The internal heat dissipating of the track girder is assisted by the way that notch 141 is arranged on annular protrusion 14, to effectively avoid because of the rail
Security risk caused by road beam internal temperature is excessively high.Certainly, although it will be appreciated to those of skill in the art that this is preferred real
Applying aeration structure described in example is the notch being arranged on annular protrusion 14；But technical staff obviously can also be according to reality
Aeration structure described in the use demand sets itself of border, is arranged on annular protrusion 14 for example, the aeration structure can also be
Ventilation hole.
Referring next to Fig. 2, further, cushioning members 15 are additionally provided on annular protrusion 14, it is preferable that cushioning members
15 are made of rubber material, and in the case of access cover 13 fastens in place, access cover 13 passes through cushioning members 15 and annular protrusion
14 fit.It is understood that the track girder can inevitably generate seismism, such as during train walking in the sky
Cushioning members 15 are arranged not between access cover 13 and annular protrusion 14 for fruit, when the track girder generates seismism, maintenance
Lid 13 can also shake and with 14 impact several times of annular protrusion, to generate noise；Therefore, the present invention passes through setting cushioning members 15
Noise problem is effectively relieved.It will be appreciated to those of skill in the art that technical staff can be according to actual use demand certainly
The row setting specific structure of cushioning members 15, quantity and material is used, as long as cushioning members 15 can play the effect for reducing noise
Fruit.
It is further preferred that multiple stiffener (not shown)s are additionally provided on top plate 111, the multiple reinforcement structure
Part is circumferentially positioned at around manhole 12, so that the use intensity of top plate 111 is effectively ensured, and then the track is effectively ensured
The security performance of beam.It will be appreciated to those of skill in the art that technical staff can be according to actual use demand sets itself
Structure, quantity and the distribution mode of the stiffener, as long as the stiffener can enhance the intensity of top plate 111 i.e.
It can；For example, the stiffener can be welded to the reinforcing rib on top plate 111, it is also possible to be fixedly attached on top plate 111
Stiffening plate.
Further, in the preferred embodiment, access cover 13 is pivotally connected to top plate 111 by shaft 16, this
The mode being pivotally connected effectively can not only open access cover 13 convenient for technical staff, additionally it is possible to effectively prevent access cover 13 from inspection
It repairs and is detached from hole 12, to effectively enhance the reliability of access cover 13.Meanwhile technical staff can also be in access cover 13 and top plate
Locking member is set between 111, to further enhance the reliability of access cover 13.In addition, technical staff opens for convenience
Access cover 13 is additionally provided with handle (not shown) on access cover 13, pivots maintenance so that technical staff can pass through handle
Lid 13, to further facilitate the maintenance operation process of technical staff.
It will be appreciated to those of skill in the art that although access cover 13 described in this preferred embodiment is to pass through shaft
16 are pivotally connected to top plate 111, and still, technical staff obviously can be with the company between self-setting access cover 13 and top plate 111
Connect relationship.For example, the mode that access cover 13 can also be connected through a screw thread be connected to top plate 111 or technical staff can be with
Prevent access cover 13 from generating shifting phenomena by the way that position limiting structure is arranged between access cover 13 and top plate 111；In addition, technology people
Access cover 13 can also be directly fixedly attached on top plate 111 by member by bolt.
Finally, it is further preferred that guard member (not shown) is additionally provided with around manhole 12, due to maintenance
Hole 12 is arranged on top plate 111, apart from ground there is certain altitude therefore to add guard member energy around manhole 12
It effectively prevent service personnel to generate falling hazard, enough so that the guard member can form effective protection to service personnel.Together
When, it will be appreciated to those of skill in the art that the present invention does not impose any restrictions the specific structure of the guard member；Example
Such as, the guard member can be protective fence or protective net, i.e. technical staff can be according to actual use demand sets itself institute
State the specific structure of guard member.
So far, it has been combined attached drawing and describes technical solution of the present invention, still, skilled addressee readily understands that
It is that protection scope of the present invention is expressly not limited to these specific embodiments.Under the premise of without departing from the principle of the present invention,
Those skilled in the art can make equivalent change or replacement to the relevant technologies feature, the technology after these changes or replacement
Scheme will fall within the scope of protection of the present invention.
Claims (10)
1. a kind of track girder for hanging type aerial train track system, which is characterized in that the track girder includes main body, sets
The access cover setting manhole on the body and being connected with the main body, the access cover can be covered to the maintenance
Kong Shang.
2. track girder according to claim 1, which is characterized in that the manhole is arranged on the top plate of the main body.
3. track girder according to claim 2, which is characterized in that the track girder further includes safeguard structure, the protection
The edge of the manhole is arranged in structure in an orbiting manner.
4. track girder according to claim 3, which is characterized in that the safeguard structure be along the edge of the manhole to
The annular protrusion of upper extension,
In the case of the access cover fastens in place, the access cover fits with the annular protrusion.
5. track girder according to claim 4, which is characterized in that be provided at least one ventilation knot on the annular protrusion
Structure.
6. track girder according to claim 5, which is characterized in that the aeration structure is to be arranged on the annular protrusion
Notch.
7. the track girder according to any one of claim 4 to 6, which is characterized in that be additionally provided on the annular protrusion
Cushioning members,
In the case of the access cover fastens in place, the access cover passes through the cushioning members and the annular protrusion phase
Even.
8. the track girder according to any one of claim 2 to 6, which is characterized in that be additionally provided at least on the top plate
One reinforcing rib,
The reinforcing rib is arranged near the manhole.
9. track girder according to any one of claim 1 to 6, which is characterized in that the shape of the manhole is circle
Or ellipse.
10. track girder according to any one of claim 1 to 6, which is characterized in that the access cover pivotally connects
It is connected to the main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810924387.8A CN108842532A (en) | 2018-08-14 | 2018-08-14 | Track girder for hanging type aerial train track system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810924387.8A CN108842532A (en) | 2018-08-14 | 2018-08-14 | Track girder for hanging type aerial train track system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108842532A true CN108842532A (en) | 2018-11-20 |
Family
ID=64188117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810924387.8A Pending CN108842532A (en) | 2018-08-14 | 2018-08-14 | Track girder for hanging type aerial train track system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108842532A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242158A (en) * | 2019-04-19 | 2019-09-17 | 中国人民解放军63921部队 | Super large rope film gate doorframe suitable for spatial mesh structure system across superelevation greatly |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1097022A (en) * | 1953-02-28 | 1955-06-28 | Alweg Forschung Gmbh | Track, particularly for vehicles traveling on monorail |
| GB1466604A (en) * | 1974-11-13 | 1977-03-09 | Sukhanov D | Overhead monorails |
| CN2408140Y (en) * | 2000-02-03 | 2000-11-29 | 周文新 | Maintenance manhole cover for water-proof and pollution prevention |
| KR200392554Y1 (en) * | 2005-05-13 | 2005-08-19 | 이형수 | Manhole unit for bridge |
| CN204173140U (en) * | 2014-09-30 | 2015-02-25 | 烟台中集来福士海洋工程有限公司 | Manhole fender guard |
| CN205893826U (en) * | 2016-06-13 | 2017-01-18 | 中铁第四勘察设计院集团有限公司 | Stride a formula single rail roof beam with sparse platform that overhauls |
| CN107253603A (en) * | 2017-07-31 | 2017-10-17 | 江苏艾锐克起重装备有限公司 | A kind of aluminum alloy rail |
| CN206664581U (en) * | 2017-04-21 | 2017-11-24 | 杨雅琳 | Prevent the empty rail duct device of falling object from high altitude damage track |
| CN209099079U (en) * | 2018-08-14 | 2019-07-12 | 中建空列（北京）科技有限公司 | Track girder for hanging type aerial train track system |
-
2018
- 2018-08-14 CN CN201810924387.8A patent/CN108842532A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1097022A (en) * | 1953-02-28 | 1955-06-28 | Alweg Forschung Gmbh | Track, particularly for vehicles traveling on monorail |
| GB1466604A (en) * | 1974-11-13 | 1977-03-09 | Sukhanov D | Overhead monorails |
| CN2408140Y (en) * | 2000-02-03 | 2000-11-29 | 周文新 | Maintenance manhole cover for water-proof and pollution prevention |
| KR200392554Y1 (en) * | 2005-05-13 | 2005-08-19 | 이형수 | Manhole unit for bridge |
| CN204173140U (en) * | 2014-09-30 | 2015-02-25 | 烟台中集来福士海洋工程有限公司 | Manhole fender guard |
| CN205893826U (en) * | 2016-06-13 | 2017-01-18 | 中铁第四勘察设计院集团有限公司 | Stride a formula single rail roof beam with sparse platform that overhauls |
| CN206664581U (en) * | 2017-04-21 | 2017-11-24 | 杨雅琳 | Prevent the empty rail duct device of falling object from high altitude damage track |
| CN107253603A (en) * | 2017-07-31 | 2017-10-17 | 江苏艾锐克起重装备有限公司 | A kind of aluminum alloy rail |
| CN209099079U (en) * | 2018-08-14 | 2019-07-12 | 中建空列（北京）科技有限公司 | Track girder for hanging type aerial train track system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242158A (en) * | 2019-04-19 | 2019-09-17 | 中国人民解放军63921部队 | Super large rope film gate doorframe suitable for spatial mesh structure system across superelevation greatly |
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