CN112193127B - Mobile contact net erection device and erection method - Google Patents
Mobile contact net erection device and erection method Download PDFInfo
- Publication number
- CN112193127B CN112193127B CN202011148114.2A CN202011148114A CN112193127B CN 112193127 B CN112193127 B CN 112193127B CN 202011148114 A CN202011148114 A CN 202011148114A CN 112193127 B CN112193127 B CN 112193127B
- Authority
- CN
- China
- Prior art keywords
- wall
- frame
- lifting
- frames
- sliding
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000011324 bead Substances 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a mobile contact net erecting device and an erecting method, wherein the device comprises four rectangular frames, the four frames are connected into a straight-line structure through hinges, the frames at the head end and the tail end of the straight-line structure are connected through electromagnets, symmetrically arranged friction rollers are arranged on the side surfaces of the frames, movable grooves are formed in the side surfaces, far away from each other, of the upper end and the lower end of the frames, a hinge cylinder is connected between the adjacent frames through sliding rods, two symmetrical sliding grooves are formed in the outer wall of the hinge cylinder, a lifting hole is formed in the center of the bottom surface of the frame, a lifting rod is arranged in the lifting hole, a horizontal sensor is arranged on the bottom surface of the frame, the horizontal sensor is connected with a single chip microcomputer through a wire, the output end of the single chip microcomputer is connected with the input end of a lifting motor through a wire, and balls are integrally arranged at the bottom end of the lifting rod. Through the cooperation of above each device, can realize the quick adjustment of the angle that the spud is located, guarantee that the spud is in vertical direction, reduce the potential safety hazard.
Description
Technical Field
The invention relates to the technical field related to electric railways, in particular to a mobile contact net erection device and an erection method.
Background
Along with the continuous development of electrified railways in various industries, in places such as container freight stations, coal mine coal silos, locomotive vehicles temporary repair warehouses and the like, a plurality of fixing piles are often required to be buried in order to provide a mobile contact power grid capable of continuously supplying power for the locomotive vehicles, but the fixing piles are difficult to ensure that the fixing piles are buried in the vertical direction in the burying process, so that certain potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a mobile contact net erection device and an erection method, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a mobile contact net erects device, includes four rectangle's frames, four through articulated the connection form a style of calligraphy structure between the frame, be located a style of calligraphy structure head and tail both ends the frame passes through the electro-magnet and connects, the frictional roller of symmetrical arrangement is installed to the side of frame.
In a further embodiment, the side that both ends kept away from mutually about the frame has all been seted up movable groove, extension spring is installed to the inner wall that the open end was kept away from to the movable groove, the internally mounted in movable groove has the slide bar, extension spring's both ends respectively with the inner wall in movable groove and the tip fixed of slide bar, the one end that the slide bar stretched into the inside of movable groove is T type structure, and the inner wall that the movable groove is close to the open end matches with the tip of slide bar T type structure.
In a further embodiment, two symmetrical sliding grooves are formed in the outer wall of the hinge barrel, the two sliding grooves are arranged in the horizontal direction, and one end, away from the extension spring, of the sliding rod penetrates through the sliding grooves and stretches into the hinge barrel.
In a further embodiment, the outer walls of the two sliding grooves are symmetrical with respect to the central axis of the hinged barrel, the central angles corresponding to the two sliding grooves are 90 degrees, and the outer wall of one end of the sliding rod extending into the sliding groove is provided with a limiting groove matched with the sliding groove.
In further embodiments, the friction roller is the cylinder type structure of half, and the outer wall of friction roller is the rubber material, the friction roller sets up in the side of both ends is close to center department about the frame, according to the pressure principle, the frame applys pressure to the spud pile through the friction roller, can reduce the positive area of contact between frame and the spud pile, and then promote the pressure between friction roller and the spud pile, thereby promote the pressure between friction roller and the spud pile, promote the frictional force between the two, can effectively avoid the frame to appear when the vertical direction removes, the condition that produces relative slip between spud pile and the frame appears.
In further embodiments, the lifting hole has been seted up to the center department of frame bottom surface, the internally mounted in lifting hole has the lifter, a plurality of commentaries on classics holes have been seted up along vertical direction equidistance to the inner wall in lifting hole, the internally mounted in commentaries on classics hole has the commentaries on classics pearl, the outer wall of commentaries on classics pearl and the laminating of the side of lifter, through changeing the rotation of pearl in the commentaries on classics hole inside, can change the sliding friction between lifter and the lifting hole into the rolling friction of changeing the pearl, can effectively reduce frictional loss between lifter and the lifting hole, can make the lifter more smooth and easy at the inside gliding of lifting hole, can promote the life of lifter simultaneously.
In a further embodiment, the lifting motor is installed in the lifting hole, a screw rod is fixed on a power output shaft of the lifting motor, the outer wall of the screw rod is meshed with the outer wall of the lifting rod, the horizontal sensor is installed on the bottom surface of the frame and connected with the singlechip through a wire, and the output end of the singlechip is connected with the input end of the lifting motor through a wire.
In a further embodiment, the bottom of lifter extends to the outside of lifting hole, the bottom of lifter is integrative to be provided with the ball, the lifter is connected with the bearing dish through the ball of its bottom, the roof surface of bearing dish has seted up the indent with ball assorted.
Preferably, the power grid erection method based on the mobile contact net erection device specifically comprises the following steps:
t1, fold the frame and wrap up it at the outer wall of contact net spud pile, then make frame end to end through the electro-magnet to make the friction roller closely laminate with the outer wall of spud pile, through the cooperation of sensor and motor use, can realize the righting of spud pile, improve the efficiency that the spud pile buried.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the fixing piles are clamped by the frames, so that the directions of the frames and the fixing piles are kept consistent, the directions of the fixing piles can be adjusted by adjusting the directions of the frames, an automatic system for angle information acquisition and angle information processing is formed between the horizontal sensor and the singlechip, and the heights of the four frames can be adjusted by controlling the start and stop of the lifting motor, so that the working efficiency is improved, the bottom surfaces of the four frames are in the same horizontal direction, and the directions of the fixing piles are adjusted.
2. According to the invention, the sliding of the sliding rod in the movable groove can change the distance between adjacent frames, so that the frames can wrap the fixed piles with more sizes, the application range of the device is improved, the minimum included angle between the frames can be ensured to be 90 degrees by symmetrically arranging the movable grooves, the direction of the frames is flush with the direction of the fixed piles, and the effect of wrapping the fixed piles by the frames can be improved.
Drawings
FIG. 1 is a cross sectional plan view of a frame according to an embodiment of the present invention;
FIG. 2 is an enlarged view of the structure A in FIG. 1 according to an embodiment of the present invention;
FIG. 3 is an enlarged view of the structure B in FIG. 1 according to the embodiment of the present invention;
FIG. 4 is an enlarged view of the structure at C in FIG. 1 according to an embodiment of the present invention;
fig. 5 is a top view of a frame according to an embodiment of the present invention.
In the figure: 1. a frame; 2. an electromagnet; 3. a friction roller; 4. a movable groove; 41. a tension spring; 42. a slide bar; 43. a hinge cylinder; 44. a chute; 45. a limit groove; 5. lifting holes; 51. a lifting rod; 52. a turning hole; 53. rotating the beads; 54. a ball; 55. a bearing plate; 56. rolling grooves; 6. a lifting motor; 61. a screw rod; 7. a level sensor; 71. and a singlechip.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the invention.
Example 1
Referring to fig. 1-5, the present embodiment provides a mobile contact net erection device and an erection method, including four rectangular frames 1, wherein the four frames 1 are connected into a straight structure through hinge connection, the frames 1 located at the front end and the rear end of the straight structure are connected through electromagnets 2, symmetrically arranged friction rollers 3 are installed on the sides of the frames 1, when in use, the four frames 1 are firstly arranged in a straight line on the sides of a fixing pile, then force is applied to the frames 1, so that the frames 1 deflect relatively until the frames 1 are completely wrapped on the outer wall of the fixing pile, and then the two ends of the frames 1 wrapped on the outer wall of the fixing pile are fixed through the electromagnets 2, so that the frames 1 are wrapped on the outer wall of the fixing pile.
The movable groove 4 has all been seted up to the side that both ends kept away from about the frame 1, extension spring 41 is installed to the inner wall that the open end was kept away from to the movable groove 4, the internally mounted in movable groove 4 has slide bar 42, the both ends of extension spring 41 respectively with the inner wall in movable groove 4 and the end fixing of slide bar 42, the inside one end that slide bar 42 stretched into movable groove 4 is T type structure, and the inner wall that the movable groove 4 is close to the open end matches with the end of slide bar 42T type structure, when the size of spud pile is great, the outer wall of spud pile applys reverse effort to frame 1, the trend that keeps away from mutually has between the adjacent frame 1 this moment, slide bar 42 can slide in the inside of movable groove 4, slide bar 42 is at the inside slip of movable groove 4, extension spring 41 upward force, can keep the state of laminating between frame 1 and the spud pile outer wall.
When the frame 1 is removed from the outer wall of the fixing pile, the extension spring 41 stretches the slide rod 42, so that the frame 1 can be reset more quickly, and the frame 1 can be stored conveniently.
Two symmetrical sliding grooves 44 are formed in the outer wall of the hinge cylinder 43, the two sliding grooves 44 are arranged in the horizontal direction, one end, away from the extension spring 41, of the sliding rod 42 penetrates through the sliding grooves 44 to extend into the hinge cylinder 43, the two sliding grooves 44 are symmetrically arranged, the minimum angle between the two sliding rods 42 is 90 degrees, the adjacent sides of the two sliding grooves 44 are in a vertical state, and convenience is brought to installation and combination between the frames 1, the trouble of installing and aligning the angle is omitted, and certain working efficiency can be improved.
The outer wall of the hinging barrel 43 is symmetrical about the central axis of the hinging barrel 43, the central angles corresponding to the two sliding grooves 44 are 90 degrees, the outer wall of one end of the sliding rod 42 extending into the sliding groove 44 is provided with a limiting groove 45 matched with the sliding groove 44, the limiting groove 45 can avoid the accidental separation of the sliding rod 42 and the sliding groove 44, and the frame 1 can keep the mutually perpendicular state when the outer wall of the fixing pile is attached through the attachment of the outer wall of the limiting groove 45 and the inner wall of the sliding groove 44, so that the side surface of the frame 1 is tightly attached to the fixing pile, the pressure between the friction roller 3 and the fixing pile can be increased, and the static friction force between the friction roller 3 and the fixing pile is improved.
The friction roller 3 is half cylinder type structure, and the outer wall of friction roller 3 is the rubber material, friction roller 3 sets up in the side of both ends is close to center department about frame 1, friction roller 3 is extrudeed between spud and frame 1, friction roller 3 obtains taking place the deformation, and then make the positive contact area between friction roller 3 and the spud increase, promote frictional force between the two, and, can realize the isolation between spud and the frame 1 through friction roller 3, avoid direct contact between the two, can effectively prevent that the scratch from appearing in the side of frame 1 and the side of spud.
According to the pressure principle, the frame 1 applies pressure to the fixing piles through the friction roller 3, so that the positive contact area between the frame 1 and the fixing piles can be reduced, the pressure between the friction roller 3 and the fixing piles is further improved, the friction force between the friction roller 3 and the fixing piles is improved, and the situation that the fixing piles and the frame 1 slide relatively when the frame 1 moves in the vertical direction can be effectively avoided.
The lifting hole 5 is formed in the center of the bottom surface of the frame 1, the lifting rod 51 is arranged in the lifting hole 5, the plurality of rotating holes 52 are formed in the inner wall of the lifting hole 5 at equal intervals along the vertical direction, the rotating holes 52 are communicated, the rotating beads 53 are arranged in the rotating holes 52, the outer walls of the rotating beads 53 are attached to the side faces of the lifting rod 51, when the lifting rod 51 slides in the lifting hole 5, the rotating beads 53 rotate in the lifting hole 52 due to the contact between the rotating beads 53 and the lifting rod 51, sliding friction between the lifting rod 51 and the lifting hole 5 can be converted into rolling friction force of the rotating beads 53 through the rotation of the rotating beads 53 in the lifting hole 52, friction loss between the lifting rod 51 and the lifting hole 5 can be effectively reduced, the lifting rod 51 can slide in the lifting hole 5 more smoothly, and meanwhile the service life of the lifting rod 51 can be prolonged.
The internally mounted in lift hole 5 has lift motor 6, lift motor 6's power take off shaft is fixed with lead screw 61, the outer wall of lead screw 61 and the outer wall meshing of lifter 51, level sensor 7 is installed to the bottom surface of frame 1, level sensor 7 is connected with singlechip 71 through the wire, the output of singlechip 71 passes through the wire and is connected with lift motor 6's input, during lift motor 6 moves, can make lifter 51 slide in lift hole 5's inside through its power take off shaft's lead screw 61, and four lift motors 6 all receive singlechip 71 control, lifter 51 can change the ground clearance of frame 1 side when the inside slides in lift hole 5, through the parcel of frame 1 to the spud, can realize that the spud follower frame 1 takes place the deflection of certain angle in vertical direction.
The horizontal sensor 7 monitors the direction of the ground surface of the frame 1 in real time, monitoring data are transmitted to the singlechip 71, the singlechip 71 receives signals which are not zero, namely, when the ground surface of the frame 1 is not in the horizontal direction, the power supply of the lifting motor 6 at the side is immediately closed, the lifting motor 6 immediately slides the lifting rod 51 inside the lifting hole 5 through the screw rod 61, the angle of the frame 1 is further adjusted, the adjustment process is finished until the data monitored by the horizontal sensor 7 are all zero, and the fixing piles and the frame 1 are in the vertical direction.
The bottom of lifter 51 extends to the outside of lifting hole 5, the bottom an organic whole of lifter 51 is provided with ball 54, lifter 51 is connected with bearing dish 55 through the ball 54 of its bottom, the roof surface of bearing dish 55 offered with ball 54 assorted roll groove 56, through the bearing dish 55 that can take place relative deflection with lifter 51, can make the bottom of lifter 51 laminate with the ground of arbitrary environment, increase the stability of frame 1, and can increase the area of contact between lifter 51 and the ground through bearing dish 55, and then reduce the pressure between lifter 51 and the ground, can effectively avoid lifter 51 to sink into the condition on ground and appear.
After the angle adjustment of the fixed pile is completed, the power supply of the electromagnet 2 is disconnected, and the frame 1 can be reset and stored.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. Mobile contact net erects device, includes four rectangular frame (1), its characterized in that: the four frames (1) are connected into a straight-line structure through a hinge, the frames (1) positioned at the head end and the tail end of the straight-line structure are connected through electromagnets (2), and symmetrically arranged friction rollers (3) are arranged on the side surfaces of the frames (1);
the side surfaces of the upper end and the lower end of the frame (1) which are far away from each other are provided with movable grooves (4), the inner wall of the movable groove (4) which is far away from the opening end is provided with a tension spring (41), the inside of the movable groove (4) is provided with a sliding rod (42), the two ends of the tension spring (41) are respectively fixed with the inner wall of the movable groove (4) and the end part of the sliding rod (42), one end of the sliding rod (42) which stretches into the movable groove (4) is of a T-shaped structure, and the inner wall of the movable groove (4) which is close to the opening end is matched with the end part of the T-shaped structure of the sliding rod (42);
two symmetrical sliding grooves (44) are formed in the outer wall of each hinge cylinder (43), the two sliding grooves (44) are arranged in the horizontal direction, and one end, away from the extension spring (41), of each sliding rod (42) penetrates through each sliding groove (44) to extend into the hinge cylinders (43);
the outer walls of the two sliding grooves (44) on the hinge cylinder (43) are symmetrical about the central axis of the hinge cylinder (43), the central angles corresponding to the two sliding grooves (44) are 90 degrees, and a limit groove (45) matched with the sliding groove (44) is formed in the outer wall of one end of the sliding rod (42) extending into the sliding groove (44);
the lifting device is characterized in that a lifting hole (5) is formed in the center of the bottom surface of the frame (1), lifting rods (51) are arranged in the lifting hole (5), a plurality of rotating holes (52) are formed in the inner wall of the lifting hole (5) at equal intervals along the vertical direction, rotating beads (53) are arranged in the rotating holes (52), and the outer wall of each rotating bead (53) is attached to the side surface of each lifting rod (51);
the lifting device is characterized in that a lifting motor (6) is arranged in the lifting hole (5), a screw rod (61) is fixed on a power output shaft of the lifting motor (6), the outer wall of the screw rod (61) is meshed with the outer wall of the lifting rod (51), a horizontal sensor (7) is arranged on the bottom surface of the frame (1), the horizontal sensor (7) is connected with a singlechip (71) through a wire, and the output end of the singlechip (71) is connected with the input end of the lifting motor (6) through the wire.
2. A mobile catenary installation apparatus according to claim 1, wherein: the friction roller (3) is of a half cylindrical structure, the outer wall of the friction roller (3) is made of rubber, and the friction roller (3) is arranged at the side surfaces of the upper end and the lower end of the frame (1) close to the center.
3. A mobile catenary installation apparatus according to claim 1, wherein: the bottom of lifter (51) extends to the outside of lift hole (5), the bottom of lifter (51) is provided with ball (54) an organic whole, lifter (51) are connected with bearing dish (55) through ball (54) of its bottom, rolling groove (56) with ball (54) assorted are seted up to the top surface of bearing dish (55).
4. A power grid erection method using the mobile catenary erection device of claim 1, comprising the steps of:
fold frame (1) and wrap up it in contact net spud pile's outer wall, then make frame (1) end to end through electro-magnet (2) to make friction roller (3) closely laminate with the spud pile's outer wall, through the cooperation of sensor and motor use, can realize the right of spud pile, improve the efficiency that the spud pile buried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011148114.2A CN112193127B (en) | 2020-10-23 | 2020-10-23 | Mobile contact net erection device and erection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011148114.2A CN112193127B (en) | 2020-10-23 | 2020-10-23 | Mobile contact net erection device and erection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112193127A CN112193127A (en) | 2021-01-08 |
| CN112193127B true CN112193127B (en) | 2023-11-10 |
Family
ID=74011239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011148114.2A Active CN112193127B (en) | 2020-10-23 | 2020-10-23 | Mobile contact net erection device and erection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112193127B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363223A (en) * | 2007-08-06 | 2009-02-11 | 中国海洋石油总公司 | Guide frame for piling under water |
| EP2273038A2 (en) * | 2009-07-08 | 2011-01-12 | Herr Karl Kangelbacher | Formwork and method for constructing same |
| CN107190752A (en) * | 2017-05-31 | 2017-09-22 | 郑州安源工程技术有限公司 | A kind of design and construction method of the recyclable square-section Row Piles Supporting Structure of flexible compound antiseepage assembled |
| CN107859324A (en) * | 2017-11-03 | 2018-03-30 | 北京中易房建筑工程有限公司 | A kind of U-device for clamping template |
| CN207464881U (en) * | 2017-11-21 | 2018-06-08 | 湖北工业大学 | It is a kind of to adapt to more specification tubular pile moulds conjunction fastener for bolt |
| CN210067457U (en) * | 2019-05-21 | 2020-02-14 | 天祥建设集团股份有限公司 | Deviation-preventing aluminum mould frame for wall beam prefabrication |
| CN211143749U (en) * | 2019-11-27 | 2020-07-31 | 张喜春 | Concrete building template for civil engineering |
-
2020
- 2020-10-23 CN CN202011148114.2A patent/CN112193127B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363223A (en) * | 2007-08-06 | 2009-02-11 | 中国海洋石油总公司 | Guide frame for piling under water |
| EP2273038A2 (en) * | 2009-07-08 | 2011-01-12 | Herr Karl Kangelbacher | Formwork and method for constructing same |
| CN107190752A (en) * | 2017-05-31 | 2017-09-22 | 郑州安源工程技术有限公司 | A kind of design and construction method of the recyclable square-section Row Piles Supporting Structure of flexible compound antiseepage assembled |
| CN107859324A (en) * | 2017-11-03 | 2018-03-30 | 北京中易房建筑工程有限公司 | A kind of U-device for clamping template |
| CN207464881U (en) * | 2017-11-21 | 2018-06-08 | 湖北工业大学 | It is a kind of to adapt to more specification tubular pile moulds conjunction fastener for bolt |
| CN210067457U (en) * | 2019-05-21 | 2020-02-14 | 天祥建设集团股份有限公司 | Deviation-preventing aluminum mould frame for wall beam prefabrication |
| CN211143749U (en) * | 2019-11-27 | 2020-07-31 | 张喜春 | Concrete building template for civil engineering |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112193127A (en) | 2021-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112193127B (en) | Mobile contact net erection device and erection method | |
| CN104495639B (en) | A kind of crane and use the van of this crane | |
| CN112720514A (en) | Electric power intelligence patrols and examines robot with narrow space function of marcing | |
| CN108944463A (en) | A kind of automatic charging mechanism of aerial shuttle | |
| CN112141150B (en) | Carriage and vehicle with same | |
| CN106451007B (en) | A kind of adjustable wire crimping connector bracket | |
| CN204324742U (en) | A kind of telescopic cable installation and use the hoisting crane of this cable installation | |
| CN206766032U (en) | A kind of train safety folding step system | |
| CN113525707B (en) | But solar charging formula unmanned aerial vehicle hangar device | |
| CN106014066B (en) | Electrically operated gate transmission device | |
| CN209740024U (en) | Flexible guide rail structure of big slide storage device | |
| CN211917863U (en) | Paper wrapping bag production incision folds limit device | |
| CN211001325U (en) | Car door equipment and car | |
| CN210976996U (en) | Door of unmanned commodity circulation car and unmanned commodity circulation car | |
| CN203095097U (en) | Impending wire steering mechanism | |
| CN208396385U (en) | A kind of circulation pallet lift rotating device | |
| CN205381277U (en) | Mine is with moving car ware | |
| CN203822022U (en) | Novel suspended sliding door | |
| CN205577740U (en) | Rail vehicle stopper sliding door is guider down | |
| CN206032939U (en) | Device is weighed down in elevator car antiskid | |
| CN109835681B (en) | Telescopic guide rail structure of large slide plate storage device | |
| CN220130062U (en) | Control device for automobile | |
| CN205366921U (en) | Gravity conveyor | |
| CN112390116B (en) | Four-way shuttle lifter and control method | |
| CN220809423U (en) | Rail sliding seat |
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 |