CN219601232U - Lifting device in guiding system in cable taking-off and taking-on station - Google Patents

Lifting device in guiding system in cable taking-off and taking-on station Download PDF

Info

Publication number
CN219601232U
CN219601232U CN202320367567.7U CN202320367567U CN219601232U CN 219601232 U CN219601232 U CN 219601232U CN 202320367567 U CN202320367567 U CN 202320367567U CN 219601232 U CN219601232 U CN 219601232U
Authority
CN
China
Prior art keywords
proximity switch
travel switch
lifting device
station
disposed
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
CN202320367567.7U
Other languages
Chinese (zh)
Inventor
张恒宇
李刚
刘佳
李培杰
吕月月
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.)
Beijing Materials Handling Research Institute Co ltd
Original Assignee
Beijing Materials Handling Research Institute 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 Beijing Materials Handling Research Institute Co ltd filed Critical Beijing Materials Handling Research Institute Co ltd
Priority to CN202320367567.7U priority Critical patent/CN219601232U/en
Application granted granted Critical
Publication of CN219601232U publication Critical patent/CN219601232U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a lifting device in an inner guide system of a cable taking-off and hanging station, which comprises a supporting beam and a movable balance rail which are arranged in parallel, wherein a first spiral lifter and a second spiral lifter are arranged on the supporting beam at intervals, a first lifting rod is arranged on the first spiral lifter, a second lifting rod is arranged on the second spiral lifter, and the movable balance rail moves along with the first lifting rod and the second lifting rod in a synchronous lifting manner. The lifting device in the guide system in the rope taking-off and hanging station can reduce the difficulty in mounting and debugging the opening position of the guide system in the station, and improves the stability of the rope taking-off and hanging rope clip when walking at the opening position.

Description

Lifting device in guiding system in cable taking-off and taking-on station
Technical Field
The utility model relates to the technical field of cableway transportation equipment, in particular to a lifting device in an on-off cableway station guiding system.
Background
The guiding system in the rope taking-off station is a system which is contacted when the balance wheel of the rope taking-off and clamping device walks in the station, and the main function of the guiding system is to keep the rope taking-off and clamping device horizontal when the rope taking-off and clamping device walks in the station. Due to the requirement of receiving and dispatching vehicles or overhauling of the rope hanging carriage, the rope hanging and locking device needs to enter and exit from the station and the garage, and a stable opening is needed to be formed in the guide system in the station. On the one hand, when the unhooking rope clip runs at the position of the opening in the station, the unhooking rope clip can be ensured to keep horizontal when walking in the station; on the other hand, when the unhooking rope clip enters and exits from the garage, the unhooking rope clip can be ensured not to be interfered and to enter and exit smoothly.
In the prior art, the device for lifting the movable balance rail by using the rotating device does not use the pressing rail to replace the balance rail at the opening position, but uses the rotating device to lift and drop the section of balance rail, so that the problem of the installation and debugging process can be solved to a certain extent, but in the prior art, the joint at the transition part of the movable balance rail and the fixed balance rail is larger, and the bolt device is required to be used for fixing the movable balance rail, so that the structure installation and debugging are more complicated, and the stability of the unhooking rope clip when walking at the opening position is difficult to be reliably ensured.
Accordingly, there is a need for a lifting device in an on-hook cable stop guide system that addresses the above-described problems.
Disclosure of Invention
The utility model provides a lifting device in an on-off ropeway station guiding system, which can reduce the difficulty in installation and debugging of an opening position of the on-off ropeway station guiding system and improve the stability of an on-off ropeway rope clip when walking at the opening position.
The utility model provides a lifting device in an inner guide system of a cable taking-off and hanging station, which comprises a supporting beam and a movable balance rail which are arranged in parallel, wherein a first spiral lifter and a second spiral lifter are arranged on the supporting beam at intervals, a first lifting rod is arranged on the first spiral lifter, a second lifting rod is arranged on the second spiral lifter, and the movable balance rail moves along with the first lifting rod and the second lifting rod in a synchronous lifting manner.
According to the lifting device in the guiding system in the hanging cable taking-off station, which is provided by the utility model, the lifting device further comprises a proximity switch assembly, wherein the proximity switch assembly comprises a first proximity switch, a second proximity switch and a proximity switch trigger plate, the first proximity switch and the second proximity switch are arranged at vertical intervals, the proximity switch trigger plate is positioned between the first proximity switch and the second proximity switch, the first proximity switch and the second proximity switch are fixedly arranged relative to the supporting beam, and the proximity switch trigger plate moves synchronously along with the movable balance rail.
According to the lifting device in the on-off cableway station guiding system, the proximity switch assembly further comprises a proximity switch mounting frame, the proximity switch mounting frame comprises a connecting part and a mounting part, the connecting part is arranged on the supporting beam, the first proximity switch and the second proximity switch are arranged on the mounting part, and the proximity switch trigger plate is arranged on the movable balance rail.
The lifting device in the guiding system in the cable taking-off and hanging station provided by the utility model further comprises a travel switch assembly, wherein the travel switch assembly comprises a travel switch and a travel switch trigger plate, a trigger wheel is arranged at the end part of the travel switch, a first groove and a second groove are vertically arranged on the travel switch trigger plate at intervals, the travel switch trigger plate and the supporting beam are relatively and fixedly arranged, and the travel switch moves synchronously along with the movable balance rail.
According to the lifting device in the guide system in the cable taking-off and hanging station, the travel switch assembly further comprises a travel switch mounting frame and a travel switch mounting seat, the travel switch mounting frame comprises a connecting part and a mounting part, the connecting part is arranged on the supporting beam, the travel switch trigger plate is arranged on the mounting part, the travel switch mounting seat is arranged on the movable balance rail, and the travel switch is arranged on the travel switch mounting seat.
The lifting device in the guide system in the cable taking-off and hanging station provided by the utility model further comprises a lower pressing plate, wherein the lower pressing plate is arranged on the lower bottom surface of the movable balance rail.
According to the lifting device in the guiding system in the cable taking-off and hanging station, which is provided by the utility model, the two ends of the lower pressing plate are provided with the upturned sections.
According to the lifting device in the guiding system in the cable taking-off and hanging station, the plurality of hafen grooves are formed in the lower bottom surface of the movable balance rail at intervals.
The lifting device in the guiding system in the hanging rope taking-off station provided by the utility model further comprises a first connecting seat and a second connecting seat, wherein the first connecting seat and the second connecting seat are arranged on the upper end face of the movable balance rail, and connecting flanges used for being connected with the first connecting seat and the second connecting seat are respectively arranged at the end parts of the first lifting rod and the second lifting rod.
According to the lifting device in the guiding system in the hanging cable station, which is provided by the utility model, the upper end surface of the movable balance rail is provided with the hafen groove for installing the connection of the first connecting seat and the second connecting seat.
According to the lifting device in the guide system in the rope taking-off and hanging station, the first spiral lifter and the second spiral lifter are arranged on the supporting beam, when the spiral lifters are in a falling state, the movable balance rail and the adjacent fixed balance rail can be smoothly butted and limited, and the rope taking-off and hanging device can be ensured to walk horizontally at the opening position in the station; when the spiral lifter is in a lifting state, the rope clip can be detached from the garage without interference when entering and exiting the garage, so that the difficulty in mounting and debugging the opening position of the guide system in the station can be reduced, and the stability of the rope clip when the rope clip is detached from the garage is improved. In addition, through the cooperation of first spiral lift and second spiral lift, can make movable balance rail atress even in the promotion landing in-process, guaranteed the stability of lift removal.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is one of the general views of an embodiment of a lifting device in an on-hook cable station in-guide system provided by the present utility model;
FIG. 2 is a second general view of an embodiment of the lifting device in the on-hook cable station guide system provided by the present utility model;
FIG. 3 is a schematic view of an embodiment of a screw lift in a lifting device in an on-hook cable station guidance system provided by the present utility model;
FIG. 4 is a schematic view of an embodiment of a support beam in a lifting device in an on-hook cable stop guidance system provided by the present utility model;
FIG. 5 is a schematic view of a movable balance rail in a lifting device in an on-off cableway station guiding system provided by the utility model;
FIG. 6 is a schematic view of an embodiment of a proximity switch mounting bracket in a lifting device in an on-hook cable station guidance system provided by the present utility model;
FIG. 7 is a schematic diagram of an embodiment of a travel switch mount in a lifting device in an on-off cableway station guidance system provided by the present utility model;
FIG. 8 is a schematic view of an embodiment of a lower platen in a lifting device in an on-hook cable station guidance system provided by the present utility model;
fig. 9 is a schematic diagram of an embodiment of a travel switch in a lifting device in an on-off cableway station guidance system provided by the present utility model.
Reference numerals:
1. a support beam; 2. a movable balance rail; 3. a first screw lifter; 301. a first lifting rod; 4. a second screw lifter; 401. a second lifting rod; 5. a first proximity switch; 6. a second proximity switch; 7. a proximity switch trigger plate; 8. a proximity switch mounting bracket; 9. a travel switch; 10. a travel switch trigger plate; 11. a first groove; 12. a second groove; 13. a travel switch mounting rack; 14. a travel switch mounting seat; 15. a lower pressing plate; 16. a first connection base; 17. a second connecting seat; 18. and (5) connecting the flanges.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The lifting device in the guiding system in the off-hook cableway station provided by the utility model is described below with reference to fig. 1-9.
As shown in fig. 1 and fig. 2, schematic diagrams of two states of an embodiment of a lifting device in an on-off cableway station guiding system according to the present utility model are shown. The lifting device in the guiding system in the hanging cable taking-off station of the embodiment comprises a supporting beam 1 and a movable balance rail 2 which are arranged in parallel, a first spiral lifter 3 and a second spiral lifter 4 are arranged on the supporting beam 1 at intervals, a first lifting rod 301 is arranged on the first spiral lifter 3, a second lifting rod 401 is arranged on the second spiral lifter 4, and the movable balance rail 2 moves in a lifting mode synchronously along with the first lifting rod 301 and the second lifting rod 401. Specifically, in this embodiment, the first screw lifter 3 and the second screw lifter 4 are symmetrically disposed on two sides of the support beam 1, and the support beam 1 is provided with a yielding opening for yielding the first lifting rod 301 and the second lifting rod 401, respectively.
According to the lifting device in the guide system in the rope taking-off and hanging station, the first spiral lifter 3 and the second spiral lifter 4 (shown in fig. 3) are arranged on the supporting beam 1, so that when the spiral lifter is in a falling state, the movable balance rail 2 and the adjacent fixed balance rail can be smoothly butted and limited, and the rope taking-off and hanging device can be ensured to walk horizontally at the opening position in the station; as shown in fig. 2, when the spiral lifter is in a lifting state, the unhooking rope clip can be prevented from being interfered when entering and exiting the garage, the installation and debugging difficulty of the opening position of the guide system in the station can be reduced, and the stability of the unhooking rope clip when walking at the opening position is improved. In addition, through the cooperation of first spiral lift 3 and second spiral lift 4, can make movable balance rail 2 atress even in the promotion landing in-process, guaranteed the stability of lift removal.
In the embodiment of the utility model, the lifting device in the guiding system in the cable taking-off station further comprises a proximity switch assembly, the proximity switch assembly comprises a first proximity switch 5, a second proximity switch 6 and a proximity switch trigger plate 7, the first proximity switch 5 and the second proximity switch 6 are vertically arranged at intervals, the proximity switch trigger plate 7 is positioned between the first proximity switch 5 and the second proximity switch 6, the first proximity switch 5 and the second proximity switch 6 are fixedly arranged relative to the supporting beam 1, and the proximity switch trigger plate 7 moves synchronously along with the movable balance rail 2. The proximity switch assembly further comprises a proximity switch mounting frame 8, the proximity switch mounting frame 8 comprises a connecting portion and a mounting portion, the connecting portion is arranged on the supporting beam 1, the first proximity switch 5 and the second proximity switch 6 are arranged on the mounting portion, and the proximity switch trigger plate 7 is arranged on the movable balance rail 2. Specifically, as shown in fig. 4, in this embodiment, the installation portion and the connection portion of the proximity switch installation frame 8 are perpendicular to each other, four strip-shaped installation holes are provided on one side of the support beam 1, and the connection portion of the proximity switch installation frame 8 is installed and fixed on the support beam 1 by using a bolt-nut assembly, and the provision of the strip-shaped installation holes is also convenient for adjusting the position of the proximity switch installation frame 8 on the support beam 1; as shown in fig. 6, two L-shaped connectors are respectively provided on the mounting portion, and are respectively used for mounting and fixing the first proximity switch 5 and the second proximity switch 6, and the connectors can be welded on the mounting portion.
When the first and second screw lifters 3 and 4 are lifted or lowered, the first and second proximity switches 5 and 6 control the start and stop of the first and second screw lifters 3 and 4 as a function of the distance from the switch trigger plate. The first proximity switch 5 and the second proximity switch 6 are conveniently installed and fixed by the proximity switch installation frame 8.
In the embodiment of the utility model, the lifting device in the guiding system in the cable taking-off station further comprises a travel switch assembly, the travel switch assembly comprises a travel switch 9 and a travel switch trigger plate 10, as shown in fig. 9, the end part of the travel switch 9 is provided with a trigger wheel, the travel switch trigger plate 10 is vertically provided with a first groove 11 and a second groove 12 at intervals, the travel switch trigger plate 10 and the supporting beam 1 are relatively and fixedly arranged, and the travel switch 9 moves synchronously along with the movable balance rail 2. The travel switch assembly further comprises a travel switch mounting frame 13 and a travel switch mounting seat 14, the travel switch mounting frame 13 comprises a connecting part and a mounting part, the connecting part is arranged on the supporting beam 1, the travel switch trigger plate 10 is arranged on the mounting part, the travel switch mounting seat 14 is arranged on the movable balance rail 2, and the travel switch 9 is arranged on the travel switch mounting seat 14. Similarly, as shown in fig. 7, in this embodiment, the travel switch mounting frame 13 has the same structure as the above-mentioned proximity switch mounting frame 8, and four bar-shaped mounting holes are also provided on the other side of the support beam 1, and the connection portion of the travel switch mounting frame 13 is mounted on the support beam 1 by using a bolt-nut assembly, and the provision of the bar-shaped mounting holes is also convenient for adjusting the position of the travel switch mounting frame 13 on the support beam 1; the travel switch trigger plate 10 is fixed on the mounting portion of the travel switch mounting frame 13 by welding, and in some embodiments, the travel switch trigger plate 10 may be integrally formed with the travel switch mounting frame 13; the travel switch mounting seat 14 is welded on the upper surface of the movable balance rail 2, and the travel switch 9 can be fixed on the travel switch mounting seat 14 through threaded connection or through welding.
When the movable balance rail 2 is in a falling state, the trigger wheel of the travel switch 9 is positioned in the first groove 11, the device is in a safe state, when the movable balance rail 2 is in a lifting state, the trigger wheel of the travel switch 9 is positioned in the second groove 12, the device is in a safe state, and when the balance rail is separated from the first groove 11 or the second groove 12, the device is in an alarm state, namely the movable balance rail 2 is lifted or falls out of place.
As shown in fig. 1, in the embodiment of the present utility model, the lifting device in the guiding system in the reeving track station further includes a lower pressing plate 15, and the lower pressing plate 15 is disposed on the lower bottom surface of the movable counter rail 2. The operating wheel of the rope clip can be supported, and the stability of the rope clip entering and exiting the garage is ensured.
As shown in fig. 8, in the embodiment of the present utility model, both ends of the lower pressing plate 15 are provided with upturned sections. The operating wheel of the unhooking rope clip can smoothly enter and exit the lower pressing plate 15, and collision is prevented.
As shown in fig. 5, in the embodiment of the present utility model, a plurality of haven grooves are provided on the lower bottom surface of the movable balance rail 2 at intervals. Specifically, as shown in fig. 8, in this embodiment, mounting plates are respectively disposed on two sides of the lower platen 15, a plurality of mounting holes are disposed on the mounting plates, and then the lower platen 15 is mounted on the lower bottom surface of the movable balance rail 2 through a bolt-nut assembly, and the position of the bolt can be adjusted in the hafen slot, so that the position of the lower platen 15 is adjusted in the length direction of the hafen slot; the lower pressure plate 15 can be installed by utilizing different hafen grooves according to requirements, and the technical purpose of adjusting the position of the lower pressure plate 15 can be achieved.
As shown in fig. 1 and 2, in the embodiment of the present utility model, the lifting device in the guiding system in the reeving rope station further includes a first connecting seat 16 and a second connecting seat 17, the first connecting seat 16 and the second connecting seat 17 are disposed on the upper end surface of the movable balance rail 2, and the ends of the first lifting rod 301 and the second lifting rod 401 are respectively provided with a connecting flange 18 for connecting with the first connecting seat 16 and the second connecting seat 17. As shown in fig. 5, the upper end surface of the movable balance rail 2 is provided with a hafen groove for installing the connection of the first connection seat 16 and the second connection seat 17. Specifically, the connecting flange 18 is provided with a plurality of mounting holes, the upper end surfaces of the first connecting seat 16 and the second connecting seat 17 are respectively provided with a plurality of mounting holes corresponding to the connecting flange 18, and then the first connecting seat 16 and the second connecting seat 17 are fixedly connected with the corresponding connecting flange 18 through a bolt and nut assembly; the lower bottom surfaces of the first connecting seat 16 and the second connecting seat 17 are respectively provided with a plurality of mounting holes, the bolt and nut assembly is used for mounting the first connecting seat 16 and the second connecting seat 17 on the upper end surface of the movable balance rail 2, the positions of the first connecting seat 16 and the second connecting seat 17 along the length direction of the corresponding Ha Fen groove can be adjusted according to requirements through adjusting the positions of the bolts, and then the technical purpose of adjusting the relative positions of the supporting beam 1 and the movable balance rail 2 is achieved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. The lifting device in the guiding system in the cable taking-off and hanging station is characterized by comprising a supporting beam and a movable balance rail which are arranged in parallel, wherein a first spiral lifter and a second spiral lifter are arranged on the supporting beam at intervals, a first lifting rod is arranged on the first spiral lifter, a second lifting rod is arranged on the second spiral lifter, and the movable balance rail follows the first lifting rod and the second lifting rod to synchronously lift and move.
2. The lifting device in an on-off cable station guidance system of claim 1, further comprising a proximity switch assembly comprising a first proximity switch, a second proximity switch, and a proximity switch trigger plate, the first proximity switch and the second proximity switch being disposed along a vertical interval, the proximity switch trigger plate being disposed between the first proximity switch and the second proximity switch, the first proximity switch and the second proximity switch being disposed in fixed relation to the support beam, the proximity switch trigger plate being configured to move in synchronization with the movable balance rail.
3. The lifting device in an on-off-hook cable station guidance system of claim 2, wherein the proximity switch assembly further comprises a proximity switch mount including a connection portion and a mounting portion, the connection portion being disposed on the support beam, the first proximity switch and the second proximity switch being disposed on the mounting portion, the proximity switch trigger plate being disposed on the movable counter rail.
4. A lifting device in an on-off-hook cable station guide system according to any one of claims 1-3, further comprising a travel switch assembly, wherein the travel switch assembly comprises a travel switch and a travel switch trigger plate, a trigger wheel is arranged at the end of the travel switch, a first groove and a second groove are vertically arranged on the travel switch trigger plate at intervals, the travel switch trigger plate and the support beam are relatively fixedly arranged, and the travel switch moves synchronously along with the movable balance rail.
5. The lifting device in an on-off cable way station guidance system of claim 4, wherein the travel switch assembly further comprises a travel switch mounting bracket and a travel switch mount, the travel switch mounting bracket comprising a connection portion and a mounting portion, the connection portion being disposed on the support beam, the travel switch trigger plate being disposed on the mounting portion, the travel switch mount being disposed on the movable counter rail, the travel switch being disposed on the travel switch mount.
6. The lifting device in an on-off ropeway station guiding system of claim 1, further comprising a lower platen disposed on a lower bottom surface of said movable counter rail.
7. The lifting device in an on-off ropeway station guiding system as claimed in claim 6, wherein two ends of said lower pressing plate are provided with upturned sections.
8. The lifting device in an on-off-hook cable station guidance system of claim 6, wherein a plurality of haven grooves are provided on the lower bottom surface of the movable balance rail at intervals.
9. The lifting device in an on-off cable way station guiding system according to claim 1, further comprising a first connecting seat and a second connecting seat, wherein the first connecting seat and the second connecting seat are arranged on the upper end face of the movable balance rail, and connecting flanges for connecting with the first connecting seat and the second connecting seat are respectively arranged at the end parts of the first lifting rod and the second lifting rod.
10. The lifting device in the on-off cableway station guiding system according to claim 9, wherein a hafen groove for installing the connection of the first connection seat and the second connection seat is respectively arranged on the upper end surface of the movable balance rail.
CN202320367567.7U 2023-03-02 2023-03-02 Lifting device in guiding system in cable taking-off and taking-on station Active CN219601232U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320367567.7U CN219601232U (en) 2023-03-02 2023-03-02 Lifting device in guiding system in cable taking-off and taking-on station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320367567.7U CN219601232U (en) 2023-03-02 2023-03-02 Lifting device in guiding system in cable taking-off and taking-on station

Publications (1)

Publication Number Publication Date
CN219601232U true CN219601232U (en) 2023-08-29

Family

ID=87754586

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320367567.7U Active CN219601232U (en) 2023-03-02 2023-03-02 Lifting device in guiding system in cable taking-off and taking-on station

Country Status (1)

Country Link
CN (1) CN219601232U (en)

Similar Documents

Publication Publication Date Title
CN107310908B (en) Full-automatic automobile side wall conveying system with high positioning accuracy
CN111348577B (en) Large-scale structural component positioning and lifting system
CN109208410B (en) Suspended monorail turnout swing type compensation rail device and compensation method thereof
CN219601232U (en) Lifting device in guiding system in cable taking-off and taking-on station
CN205602883U (en) No computer lab car fixing device
CN211310731U (en) Movable locomotive overhauling device
CN215100151U (en) Double-track EMS (energy management system) aerial conveying trolley
CN210084253U (en) Single-rail conveying vertical butt joint device
CN212249118U (en) Installation device for sliding contact line of crown block
CN210307640U (en) Be used for superconductive cyclotron upper iron yoke assembly guide equipment
CN113524086A (en) Box body assembling equipment
CN210595059U (en) Single-column hoisting elevator
CN216426527U (en) Door and window debugging frame
CN112693803A (en) Have raising and lowering functions transmission device
CN217051325U (en) Portable lifting device's mounting bracket and portable lifting device
CN215892277U (en) Guide rail type lifting system
CN216179994U (en) Box body assembling equipment
CN108328476B (en) Overhauling device for crane
CN220107394U (en) Power transmission line overhauling platform
CN210755955U (en) Clamp switching system
CN219690747U (en) Sliding protective shed
CN219927516U (en) Mine unloading trolley power supply device
CN219010950U (en) Monorail sliding operation platform for overhauling outer side of subway viaduct
CN214218030U (en) Simple vertical conveyor
CN219709061U (en) Single track straddle type overhauls device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant