CN112678115B - Shipborne laboratory cabin roof track system and scientific investigation ship - Google Patents

Shipborne laboratory cabin roof track system and scientific investigation ship Download PDF

Info

Publication number
CN112678115B
CN112678115B CN202011511552.0A CN202011511552A CN112678115B CN 112678115 B CN112678115 B CN 112678115B CN 202011511552 A CN202011511552 A CN 202011511552A CN 112678115 B CN112678115 B CN 112678115B
Authority
CN
China
Prior art keywords
laboratory
plate
annular
long groove
plates
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.)
Active
Application number
CN202011511552.0A
Other languages
Chinese (zh)
Other versions
CN112678115A (en
Inventor
徐晨
程磊
安志杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuchang Shipbuilding Industry Group Co Ltd
Original Assignee
Wuchang Shipbuilding Industry Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuchang Shipbuilding Industry Group Co Ltd filed Critical Wuchang Shipbuilding Industry Group Co Ltd
Priority to CN202011511552.0A priority Critical patent/CN112678115B/en
Publication of CN112678115A publication Critical patent/CN112678115A/en
Application granted granted Critical
Publication of CN112678115B publication Critical patent/CN112678115B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Leg Units, Guards, And Driving Tracks Of Cranes (AREA)

Abstract

The invention relates to a cabin roof track system of a shipborne laboratory and a scientific research ship, belongs to the technical field of scientific research ships, and solves the technical problem that tracks installed in the shipborne laboratory in the prior art cannot meet the use requirements of the shipborne laboratory under some conditions. The shipborne laboratory cabin roof track system comprises unit plates, wherein the four side walls of each unit plate are provided with female openings, a plurality of unit plates are spliced to form a ceiling mounted on the cabin roof of a laboratory, and the female openings on two adjacent unit plates are spliced to form mounting grooves; the ceiling is hung on the roof of the laboratory through the hanging beam; the annular track is laid in the mounting groove and is detachably and fixedly connected to the top of the laboratory cabin; the scientific research ship uses the onboard laboratory cabin roof track system. Like this, the circular orbit among the above-mentioned on-board laboratory roof rail system is continuous track for when hoist and mount laboratory object, application range is wider, circular orbit simple to operate and firm.

Description

Shipborne laboratory cabin roof track system and scientific investigation ship
Technical Field
The invention belongs to the technical field of scientific research ships, and particularly relates to a shipborne laboratory cabin roof track system and a scientific research ship.
Background
At present, a multifunctional track is installed on the bulkhead plate of the shipborne laboratory system of the scientific research ship and used for fixing or transporting laboratory equipment, the multifunctional track depends on the integral keel frame at the back of the bulkhead plate, the overhead groove and the bottom groove and is fixedly connected through bolts, and the track and the ceiling are arranged at intervals in parallel. In the prior art, the use of the track installed in the shipborne laboratory is very limited, and the use requirement of the shipborne laboratory under some conditions cannot be met.
Disclosure of Invention
The invention provides a cabin roof track system of a ship-borne laboratory and a scientific research ship, which are used for solving the technical problems that in the prior art, the track installed in the ship-borne laboratory is very limited in use and cannot meet the use requirements of the ship-borne laboratory under some conditions.
The invention is realized by the following technical scheme: an on-board laboratory roof rail system comprising:
the device comprises unit plates, a plurality of units and a plurality of control units, wherein the four side walls of each unit plate are provided with female openings, the plurality of unit plates are spliced to form a ceiling mounted on the roof of the laboratory, and the female openings on two adjacent unit plates are spliced to form mounting grooves;
the ceiling is hung on the laboratory cabin roof through the hanging beam;
the annular rail is laid in the mounting groove and detachably and fixedly connected to the laboratory roof.
Further, in order to better implement the present invention, the mounting groove includes a first elongated slot and a second elongated slot, and the annular rail is laid in the first elongated slot;
the hanging beam comprises a plate body and a frame body arranged at the bottom end of the plate body, the top end of the plate body is fixedly connected to the laboratory cabin top, the frame body is installed in the second long groove, and the upper side plates of the openings on the two sides of the second long groove are in lap joint with the frame body.
Further, in order to better implement the present invention, the first long groove and the second long groove intersect, and the frame body is provided with a plurality of notches for passing through the rail.
Furthermore, in order to better realize the invention, the number of the hanging beams is a plurality, and the gaps on the same frame body are distributed at equal intervals.
Further, in order to better realize the invention, the distance between two adjacent notches on the same frame body is 500mm-700 mm.
Further, in order to better implement the invention, the distance between two adjacent notches on the same frame body is 600 mm.
Furthermore, in order to better realize the invention, a keel is fixedly connected to the laboratory cabin roof, and the annular track is detachably and fixedly connected to the keel through a connecting piece;
the annular rail is connected with a back plate, an interlayer is formed between the back plate and the keel, and the upper side plates of the female openings on two sides of the first long groove are clamped in the interlayer.
Furthermore, in order to better realize the invention, a gap is formed between the lower side plates of the female openings at two sides of the first long groove;
the annular track comprises a top plate, side plates and bottom plates, wherein one side plate is arranged on each of two sides of the top plate, one bottom plate is arranged on each side plate, a gap with the width smaller than the distance between the two side plates is formed between the two bottom plates, and the gap is matched with and corresponds to the gap;
the back plate is bonded to the top surface of the top plate.
Further, in order to better implement the present invention, the connecting member includes a bolt and a nut, and the bolt is threaded with the nut after passing through the top plate, the back plate and the keel.
The invention also provides a scientific investigation ship which comprises the shipborne laboratory cabin top track system.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention provides a shipborne laboratory roof track system which comprises unit plates, hanging beams and annular tracks, wherein the four side walls of the unit plates are respectively provided with a female opening, a plurality of unit plates are spliced to form a ceiling mounted on the laboratory roof, the female openings on two adjacent unit plates are spliced to form a mounting groove, the annular tracks are laid in the mounting grooves and are detachably and fixedly connected with the laboratory roof, the ceiling is hung on the laboratory roof through the hanging beams, through the structure, the annular tracks in the track system provided by the invention are continuous tracks, when the track system is used for hoisting laboratory objects, the application range is wider, the ceiling with the structure can be stably mounted on the laboratory roof, the mounting grooves formed by splicing the female openings can stably support the annular tracks, and the four side walls of the unit plates are respectively provided with the female openings, the mounting grooves in the ceiling formed by splicing the plurality of unit plates are communicated with each other, so that a good mounting position is provided for the annular track, and the annular track is simpler and more convenient to mount.
(2) The scientific investigation ship provided by the invention adopts the cabin roof track system of the shipborne laboratory, so that the laboratory of the scientific investigation ship is more convenient to use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a shipborne laboratory roof rail system in the present application;
FIG. 2 is a schematic sectional view A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view B-B of FIG. 1;
FIG. 4 is a schematic cross-sectional view of C-C of FIG. 1;
fig. 5 is a schematic structural view of a suspension beam in the present application.
In the figure:
1-a unit plate; 11-female mouth;
2-a first elongated slot;
3-a second elongated slot;
4-hanging the beam; 41-a plate body; 42-a frame body;
5-an annular track; 51-a top plate; 52-side plate; 53-a backplane;
6-a notch;
7-keel;
8-bolt;
9-a nut;
10-a back plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1:
the embodiment provides a cabin roof track system for a ship-borne laboratory, which is used for solving the technical problems that in the prior art, the track installed in the ship-borne laboratory is very limited in use and cannot meet the use requirements of the ship-borne laboratory under some conditions, specifically, the track on a trunk wall cannot form a ring shape due to the influence of cabin space, the track is disconnected from the track and is discontinuous, and for objects needing continuous transportation, the track arranged on the trunk wall in the prior art cannot meet the requirements.
The shipborne laboratory cabin top track system comprises a unit plate 1, a hanging beam 4 and an annular track 5.
Cell board 1 is square furred ceiling panel to cell board 1 includes four lateral walls, goes up face and face down, all is equipped with female mouth 11 on four lateral walls of cell board 1, and this moment, this cell board 1 is four female mouthful of panels. A plurality of unit boards 1 are spliced to form a ceiling mounted on the cabin top of a scientific research ship laboratory, and the female openings 11 of two adjacent unit boards 1 are spliced to form a mounting groove. It should be noted that the female openings 11 are composed of an upper side plate, a main body of the unit plate 1 and a lower side plate, of course, the upper side plate and the lower side plate also belong to the unit plate 1, and there are gaps between the upper side plates of adjacent female openings 11 and gaps between the lower side plates of adjacent female openings 11. The ceiling is suspended on the laboratory roof by means of suspension beams 4. By the structure, the mounting groove on the ceiling is a closed-loop and communicated notch.
The circular track 5 is laid in the installation groove, and the circular track 5 is detachably and fixedly connected to the top of the laboratory cabin, and the circular track 5 can be installed because the installation groove is a closed-loop notch. The circular rail 5 in this embodiment can be welded to the laboratory roof through angle steel, specifically, one end of the angle steel is welded to the laboratory roof, and the other end of the angle steel is welded to the circular rail 5 and the angle steel passes through the gap. Owing to use endless track 5, consequently make on-board laboratory track be closed loop and continuous for when hoist and mount laboratory object, application range is wider, can satisfy the hoist and mount requirement of more kinds of circumstances in the laboratory, and the ceiling of above-mentioned structure can be installed at laboratory cabin top firmly, and female mouth 11 then can support endless track 5 to the mounting groove of piecing together formation, specifically, endless track 5 inlays the dress in the mounting groove and endless track 5's diapire overlap joint is at above-mentioned clearance both sides. And because all be equipped with female mouth 11 on the four lateral walls of cell board 1, the mounting groove in the ceiling that a plurality of cell boards 1 concatenation formed then link up each other to provide good mounted position for circular orbit 5, also make circular orbit 5's installation simple and convenient more promptly.
As an implementation manner of this embodiment, in this embodiment, the mounting groove includes a first elongated slot 2 and a second elongated slot 3, and of course, the first elongated slot 2 and the second elongated slot 3 are communicated, and the annular rail 5 is laid in the first elongated slot 2. The hanging beam 4 in this embodiment includes a plate 41 and a frame 42 disposed at the bottom end of the plate 41, the frame 42 is a square frame and is adapted to the second elongated slot 3, but the frame 42 may also be made into a solid structure, the length of the frame 42 is the same as the length of the plate 41, the frame 42 is wider than the plate 41, and the distance that the frame 42 extends out of the two sides of the plate 41 is the same, at this time, the hanging beam 4 actually has an inverted T-shaped structure. The top of plate body 41 passes through other angle steel welding at the laboratory cabin top, and of course, the top of plate body 41 also can set up the otic placode, connects at the laboratory cabin top behind the otic placode is passed to the utilization screw. The frame 42 is installed in the second elongated slot 3, the width of the frame 42 is greater than the width of the gap, and the width of the plate body 41 is less than the width of the gap, at this time, the plate body 41 can pass through between the upper side plates of the notches 11 on both sides of the second elongated slot 3, and the top end of the frame 42 abuts against the upper side plates of the notches 11 on both sides of the second elongated slot 3, that is, the upper side plates of the notches 11 on both sides of the second elongated slot 3 are overlapped on the frame 42. Through this kind of structure, can be so that cell board 1 can be better with hang 4 connections of roof beam to promote ceiling bulk strength, improve its reliability, guaranteed personnel's safety. The first elongated slot 2 and the second elongated slot 3 in this embodiment do not intersect, that is, the annular slot formed by the first elongated slot 2 is surrounded by a plurality of second elongated slots 3.
In another embodiment of the present invention, the first elongated slot 2 and the second elongated slot 3 intersect each other, the frame 42 of the hanging beam 4 is provided with a plurality of notches 6 distributed along the length of the hanging beam 4 and used for passing through the rail, and one notch 6 is provided at the intersection point position where the first elongated slot 2 and the second elongated slot 3 intersect each other. In this way, the circumferential length of the endless track 5 can be made larger. As another embodiment of this embodiment, the hanging beam 4 in this embodiment may be multi-segment, and the hanging beam 4 is not disposed at the intersection of the first elongated slot 2 and the second elongated slot 3, so that the circular rail 5 can pass through smoothly.
As a specific implementation manner of this embodiment, in this embodiment, the number of the hanging beams 4 is multiple, each hanging beam 4 is provided with a plurality of notches 6, and the notches 6 on the same hanging beam 4 are distributed at equal intervals. Preferably, the distance between two adjacent notches 6 on the same frame body 42 is 500mm-700 mm. Preferably, the distance between two adjacent notches 6 on the same frame 42 is 600 mm.
Example 2:
in this embodiment, as another embodiment of embodiment 1, in this embodiment, a keel 7 is fixedly connected to a laboratory cabin roof, the keel 7 is a light steel keel 7, and since the keel 7 is a component of both the laboratory cabin wall and the cabin roof of the scientific research ship in the prior art, detailed description thereof is omitted here. The annular track 5 is detachably and fixedly connected to the keel 7 through a connecting piece. The connector may be a snap or a steel band. A back plate 10 is adhered to the annular rail 5 or integrally formed, and the back plate 10 is embedded in the first elongated slot 2 together with the annular rail 5. And an interlayer is formed between the back plate 10 and the keel 7, and the upper side plates of the female openings 11 at two sides of the first elongated slot 2 are clamped in the interlayer, so that the interlayer can clamp the unit plates 1, and the unit plates 1 at two sides of the annular track 5 can be connected more stably through the structure, thereby enhancing the structural strength of the ceiling. It should be noted that the connecting member in this embodiment passes through the gap. As a more preferable embodiment of the present embodiment, the annular rail 5 extends from both sides of the back plate 10 in the present embodiment, the length of the back plate 10 extending from both sides of the annular rail 5 is the same, and the end of the back plate 10 abuts against the side plate of the female opening 11, so that the mounting position of the back plate 10 and the entire annular rail 5 in the first long groove 2 can be positioned. Through above-mentioned structure, the intermediate layer presss from both sides tight cell board 1 to 10 tight female mouthful 11 inner walls in top of backplate, then can strengthen the installation intensity of monoblock ceiling, reduced ceiling free activity terminal surface, weaken the vibration effectively, the noise reduction has guaranteed the on-board laboratory experimental environment, promotes crew's travelling comfort. It should be noted that, in the prior art, two ends of the unit boards forming the ceiling are directly lapped on the existing hoisting beam and are not fastened, and the ceiling can make abnormal sound and easily fall off along with the jolt of the ship navigation, so that great potential safety hazards are caused to personnel. The unit boards 1 of the ceiling in this embodiment do not make abnormal sound and fall off after being clamped.
As a specific implementation manner of this embodiment, the circular rail 5 in this embodiment includes a top plate 51, side plates 52 and a bottom plate 53, wherein one side plate 52 is welded or integrally formed on both sides of the top plate 51, one bottom plate 53 is welded or integrally formed on each side plate 52, the bottom plate 53 is perpendicular to the side plate 52, the side plate 52 is perpendicular to the top plate 51, a gap having a width smaller than a distance between the side plates 52 on both sides is formed between the two bottom plates 53, and the gap corresponds to a gap between the side plates on the female opening 11 on both sides of the first long slot 2. The back plate 10 is bonded to the top surface of the top plate 51, and the gap is located right below the circular rail 5 and defines the gap.
As a best mode of the embodiment, the connecting member in the embodiment includes a bolt 8 and a nut 9, the bolt 8 is threaded with the nut 9 after passing through the top plate 51, the back plate 10 and the keel 7, and the bolt 8 in the connecting member will pass through the gap between the top plate 51 of the female opening 11 on both sides of the first long slot 2. Through the structure, the top plate 51 can be firmly connected to the keel 7, and the assembly and disassembly are convenient.
Example 3:
the embodiment provides a scientific investigation ship which adopts the shipborne laboratory roof track system. Therefore, the laboratory on the scientific investigation ship is more convenient to use.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (6)

1. An on-board laboratory roof rail system, comprising:
the device comprises unit plates, wherein the four side walls of each unit plate are provided with female openings, a plurality of unit plates are spliced to form a ceiling mounted on the top of a laboratory cabin, and the female openings on two adjacent unit plates are spliced to form mounting grooves; the female opening consists of an upper side plate, a unit plate main body and a lower side plate;
the ceiling is hung on the laboratory cabin roof through the hanging beam;
the annular rail is laid in the mounting groove, the mounting groove formed by splicing the female openings can support the annular rail, the annular rail is detachably and fixedly connected to the top of the laboratory cabin, the mounting groove comprises a first long groove and a second long groove, and the annular rail is laid in the first long groove; the hanging beam comprises a plate body and a frame body arranged at the bottom end of the plate body, the top end of the plate body is fixedly connected to the top of the laboratory cabin, the frame body is installed in the second long groove, upper side plates of the openings on two sides of the second long groove are in lap joint with the frame body, the top of the laboratory cabin is fixedly connected with a keel, and the annular track is detachably and fixedly connected to the keel through a connecting piece; the annular rail is connected with a back plate, an interlayer is formed between the back plate and the keel, the upper side plates of the female openings on two sides of the first long groove are clamped in the interlayer, certain extending allowance is formed between the upper side plates of the female openings and the interlayer after the fixing is finished, and gaps are formed between the lower side plates of the female openings on two sides of the first long groove; the annular track comprises a top plate, side plates and bottom plates, wherein one side plate is arranged on each of two sides of the top plate, one bottom plate is arranged on each side plate, a gap with the width smaller than the distance between the two side plates is formed between the two bottom plates, and the gap is matched with and corresponds to the gap; the back plate is bonded on the top surface of the top plate, and the lower side plate of the female opening is abutted against the side plate of the annular track; the two sides of the back plate extend out of the annular rails, the lengths of the two sides of the back plate extending out of the annular rails are the same, the end part of the back plate abuts against the female side plate, and the back plate and the whole annular rail are positioned at the mounting positions of the first long groove; the first long groove and the second long groove are intersected, and a plurality of notches for allowing the frame body to pass through the rail are formed in the frame body.
2. The on-board laboratory roof rail system of claim 1, wherein: the number of the hanging beams is a plurality of, and the same gap on the frame body is distributed at equal intervals.
3. The on-board laboratory roof rail system of claim 2, wherein: the distance between two adjacent notches on the same frame body is 500-700 mm.
4. The on-board laboratory roof rail system of claim 3, wherein: the same root the interval between two adjacent breach on the framework is 600 mm.
5. The on-board laboratory roof rail system of claim 1, wherein: the connecting piece comprises a bolt and a nut, and the bolt penetrates through the top plate, the back plate and the keel and then is in threaded connection with the nut.
6. A scientific investigation ship, characterized in that: comprising an on-board laboratory roof rail system according to any one of claims 1 to 5.
CN202011511552.0A 2020-12-18 2020-12-18 Shipborne laboratory cabin roof track system and scientific investigation ship Active CN112678115B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011511552.0A CN112678115B (en) 2020-12-18 2020-12-18 Shipborne laboratory cabin roof track system and scientific investigation ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011511552.0A CN112678115B (en) 2020-12-18 2020-12-18 Shipborne laboratory cabin roof track system and scientific investigation ship

Publications (2)

Publication Number Publication Date
CN112678115A CN112678115A (en) 2021-04-20
CN112678115B true CN112678115B (en) 2022-06-17

Family

ID=75450234

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011511552.0A Active CN112678115B (en) 2020-12-18 2020-12-18 Shipborne laboratory cabin roof track system and scientific investigation ship

Country Status (1)

Country Link
CN (1) CN112678115B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201598788U (en) * 2009-11-20 2010-10-06 沈孜明 Ceiling
CN202219830U (en) * 2011-09-07 2012-05-16 江苏海陆科技股份有限公司 Bulkhead plate for sanitary unit
KR20130000733U (en) * 2011-07-22 2013-01-30 대우조선해양 주식회사 Anchor Watching Platform of Vessel
CN107336802A (en) * 2016-12-27 2017-11-10 江阴市要塞海陆装饰材料有限公司 Naval vessel laboratory cabin unit
CN207296132U (en) * 2017-10-18 2018-05-01 苏州市永盛防火材料有限公司 A kind of top plate metal skinned sandwich panel female mouth connects workpiece

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002360806A1 (en) * 2001-12-28 2003-07-24 Jay R. Brackmann Private pallet-box cargo shipping system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201598788U (en) * 2009-11-20 2010-10-06 沈孜明 Ceiling
KR20130000733U (en) * 2011-07-22 2013-01-30 대우조선해양 주식회사 Anchor Watching Platform of Vessel
CN202219830U (en) * 2011-09-07 2012-05-16 江苏海陆科技股份有限公司 Bulkhead plate for sanitary unit
CN107336802A (en) * 2016-12-27 2017-11-10 江阴市要塞海陆装饰材料有限公司 Naval vessel laboratory cabin unit
CN207296132U (en) * 2017-10-18 2018-05-01 苏州市永盛防火材料有限公司 A kind of top plate metal skinned sandwich panel female mouth connects workpiece

Also Published As

Publication number Publication date
CN112678115A (en) 2021-04-20

Similar Documents

Publication Publication Date Title
CA2941623C (en) Integrated ceiling assembly for railcars
RU2472694C2 (en) Self-bearing elevator cabin
CN102239086A (en) Rigid aircraft pylon structure pressed against a side extension of the fuselage for the attachment thereof
CN112678115B (en) Shipborne laboratory cabin roof track system and scientific investigation ship
CN113306587A (en) Rail vehicle chassis structure
KR20210153623A (en) Ship's cabin structure and prefabricated cabin assembly method
CN105040589A (en) Stayed-cable steel anchor beam structure
CN109109892B (en) Railway vehicle's chassis subassembly and railway vehicle
CN211396226U (en) Slide rail furred ceiling fossil fragments integrated component
CN108557405A (en) Profiled rail and transporting equipment
CN109989784A (en) A kind of subway dispersing platform
CN208352899U (en) The overhead two-wire section strong and weak electricity pipe installation structure of straddle-type track girder system
CN202163491U (en) Vehicle frame structure
CN214005365U (en) Steel structure box girder bridge straight-line bridge structure for PRT
CN211543536U (en) Air duct system and rail vehicle with same
CN209986450U (en) Lapped box beam
CN206625351U (en) A kind of modified construction steel structure
US8479460B1 (en) High shear roof deck system
KR101083857B1 (en) Method and system of installing and connecting prefabricated room units to a ship or other watercraft
CN217420089U (en) Unit wall module and wall
CN210117839U (en) Assembled steel structure outer hanging wallboard connector
CN117905217B (en) Sound absorption structure with continuous through lamp strip and construction method
CN213413782U (en) Large-scale installation crossbeam structure of high-speed train
CN211594682U (en) Elevator car main and auxiliary rail shared crosspiece
CN215361334U (en) Suspension type monorail vehicle roof structure

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant