CN214495567U - ETV over-and-under type transfer car (buggy) - Google Patents
ETV over-and-under type transfer car (buggy) Download PDFInfo
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- CN214495567U CN214495567U CN202120398850.7U CN202120398850U CN214495567U CN 214495567 U CN214495567 U CN 214495567U CN 202120398850 U CN202120398850 U CN 202120398850U CN 214495567 U CN214495567 U CN 214495567U
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Abstract
The ETV lifting transfer trolley comprises a front upright post, a rear upright post, a top beam, an underframe, a lifting platform, a lifting driving device, an overspeed detection device, an electric control system, a cab, a safety protection system, a traveling device and a track system; two ends of the top beam are respectively fixed at the top ends of the front upright post and the rear upright post, and form a portal frame together with the front upright post and the rear upright post, and a walking motor of the walking device drives a walking wheel on the underframe to enable the ETV to horizontally walk along the ground rail; a lifting steel wire rope tied to the lifting platform, and the lifting steel wire rope pulls the lifting platform to complete lifting movement under the driving of a lifting motor; the lifting platform is provided with a roller platform, and the roller platform and the ETV roller bed are driven to synchronously rotate by the friction force of the extractor, so that the warehousing or ex-warehouse operation of the containerized goods is completed. Its overall design is reasonable, and the structure is simple and convenient, and transport airport cargo is multiple functional, and manufacturing cost is not high, and the operation is stable when transporting to the goods, and its simple operation can adapt to the air cargo handling of high-speed development.
Description
Technical Field
The utility model relates to an aviation freight transportation haulage equipment field, concretely relates to ETV over-and-under type transfer car (buggy).
Background
In recent years, with the rapid development of domestic air cargo, a plurality of air freight stations are rapidly constructed and developed, and with the continuous progress of technology, the automation level is higher and higher. In order to accommodate the high-speed growth of the total volume of air freight, air freight stations are built at many large airports throughout China. Eighty percent of the goods are containerized goods, and the goods are generally concentrated on entering and leaving ports in a certain time due to traffic control, flight arrangement and the like, so that the goods transfer pressure is increased. Therefore, each airport freight station actively introduces logistics equipment with higher automation degree to improve the transfer efficiency of the goods. Lifting Transfer Vehicles (ETV) are important Transfer logistics equipment in a container stereoscopic warehouse, and as important equipment of an automatic air freight station, the lifting Transfer Vehicles (ETV) bear important responsibility of turnover transportation of air freight in an airport.
The ETV lifting transfer trolley is used as key process equipment of an air freight station, is usually related to the processing capacity and the operation efficiency of a process system, and also plays an important role in process design and bidding. However, the existing ETV lifting transfer trolley is not reasonable enough in design, incomplete in function, complex in structure, high in manufacturing cost, unstable in operation during cargo transfer, not convenient and fast to operate, and not suitable for carrying of high-speed developed air cargos.
In view of this, the present invention provides a solution to the above-mentioned drawbacks of the prior art.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, an ETV lifting transfer trolley is provided, and the ETV lifting transfer trolley is reasonable in design, simple and convenient in structure, complete in carrying function, low in manufacturing cost, stable in running during cargo transfer, convenient and fast to operate and not suitable for carrying of aviation cargos developed at a high speed.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
an ETV lifting transfer trolley comprises an upright post, a top beam, an underframe, a lifting platform, a lifting driving device, an overspeed detection device, an electric control system, a cab, a safety protection system, a traveling device and a track system; the upright posts are in a double-upright-post form and consist of a front upright post and a rear upright post, the inner side surfaces of the front upright post and the rear upright post are provided with lifting guide rails of the lifting platform, and the upper parts of the front upright post and the rear upright post are respectively provided with a steel structure maintenance platform; two ends of the top beam are respectively fixed at the top ends of the front upright post and the rear upright post, and form a portal frame together with the front upright post and the rear upright post, and two groups of top pulleys are arranged on the inner sides of the two ends of the top beam; the lifting platform consists of a vertical frame, a transverse frame, an upper cross beam, a lower cross beam, a horizontal guide wheel and a vertical guide wheel, wherein the vertical frame is vertically arranged at two sides of the middle part of the lifting platform, the transverse frame is horizontally arranged at the bottom of the lifting platform, two ends of the upper cross beam are respectively fixed at the top end of the vertical frame, the lower cross beam is fixed at the bottom of the vertical frame, the inner side surface of the lower cross beam is fixedly connected with the outer side of the transverse frame, the bottom of the transverse frame is provided with the horizontal guide wheel, a track system is laid below the horizontal guide wheel along the walking direction of the horizontal guide wheel, the outer side surface of the vertical frame is fixedly provided with the vertical guide wheel, and the vertical guide wheel can roll on the lifting guide rail; a track system is arranged below the lifting platform, detection handrails are arranged on the rear side of the lifting platform and are positioned on two sides of the rear upright post, a detection walkway is arranged on the outer side of the detection handrails, a safety protection handrail is arranged on the periphery of the detection walkway, a lifting driving device is arranged on the detection walkway close to the rear upright post, two sets of pulley blocks are arranged on the upper cross beam, and a cab is arranged on the right side of the lifting platform; the lifting platform is arranged between the front upright post and the rear upright post, is driven and dragged by a lifting driving device, and moves up and down along the lifting guide rail within a set height range; the lifting driving device is arranged on the rear side of the rear upright post and is connected with the overspeed detection device; the electric control system is arranged in an electric control box on the outer side of the front upright post, and the safety protection system is arranged at the top of the electric control box; the roller table is arranged below the lifting table and consists of a frame, a roller, a driving roller and a friction extraction mechanism, wherein the frame is arranged on two sides of the roller table, two ends of the frame are respectively connected with two ends of the roller, the roller is connected with the driving roller, and the friction extraction mechanism is arranged on the driving roller; the front side end of the transmission roller is provided with a transmission mechanism, the transmission mechanism is provided with a transmission motor, a chain wheel and a chain, the roller is driven by the transmission motor through the chain wheel and the chain, four sets of walking devices are arranged on the outer sides of the frame, which are close to four corners, the walking devices are driven by the walking motors positioned on two sides of the frame, and the walking devices can drive the whole ETV to run on the track system together; the lifting driving device consists of a mounting frame, a winding drum, lifting steel wire ropes and a lifting motor, wherein the winding drum is wound with four lifting steel wire ropes; the lifting motor drives a winding drum and drives the lifting platform to lift and run by winding a pulley block on the upper cross beam and a top pulley block on the top beam through a lifting steel wire rope; the cab is arranged in front of the roller way table, and a pedestrian path is arranged between the roller way table and the cab; the track system comprises two parallel ground rails, the ground rails are installed in a reserved ground foundation groove, and the rollers are arranged between the two ground rails side by side.
Preferably, front column and rear column upper portion all are equipped with steel construction maintenance platform, can hold two people simultaneously and overhaul the operation on the maintenance platform, the maintenance platform periphery is equipped with the safety protection rail, and maintenance platform below is equipped with the perpendicular safe cat ladder of going through from top to bottom, the safe cat ladder is installed in front column and rear column side.
Preferably, an overspeed protection safety device is further arranged on the lifting driving device, and the overspeed protection safety device is electrically connected with the overspeed detection device.
Preferably, the side surface of the vertical frame is also provided with an oblique beam.
Preferably, the distance between the rollers is 305mm, and a detachable walkway plate is further installed between the adjacent rollers.
Preferably, the lifting motor adopts 2 55KW lifting motors, the driving mode adopts an alternating current frequency conversion mode, and the adopted frequency converter adopts a vector control mode.
Preferably, the cab is of a totally enclosed frame structure, large-area glass is mounted on two sides of the cab to facilitate visual field, an operation console with the functions of signal transmission and operation center is arranged in the cab, and a display instrument panel, an ETV (electric transient voltage) running and lifting switch are mounted on the operation console.
Preferably, the cab is provided with a door communicating with the goods-carrying platform pedestrian walkway and a door communicating with the maintenance ladder.
Preferably, the center distance between the two ground rails is 5000mm, the ground rails are installed in a reserved ground foundation groove, and the upper surfaces of the ground rails are 5mm higher than the ground.
Preferably, the walking device is provided with a hydraulic buffer and can perform walking mechanical limit on the walking device so as to prevent the ETV from exceeding a safety area.
Through the technical scheme, the utility model discloses a design into the structure that includes stand, back timber, chassis, elevating platform, lift drive, overspeed detection device, electrical system, driver's cabin, safety protection system, running gear and track system with ETV over-and-under type transfer car (buggy), the walking motor drive walking wheel on the chassis of running gear makes ETV walk along the ground rail level; a lifting steel wire rope tied to the lifting platform, and the lifting steel wire rope pulls the lifting platform to complete lifting motion along the lifting guide rail under the driving of a lifting motor; the lifting platform is provided with a roller table, and the roller table and the ETV roller table are driven to synchronously rotate by the friction force of the extractor, so that the warehousing or ex-warehouse operation of the container plates or containers is completed. Its overall design is reasonable, and the structure is simple and convenient, and transport airport goods is multiple functional, and manufacturing cost is not high, and the operation is stable when transporting to the goods simultaneously, and the operation personnel simple operation can adapt to the transport of the air cargo of high-speed development completely. Thereby the purposes of novel design, reasonable structure and good application effect are achieved.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a perspective view of an ETV lift type transfer trolley disclosed in an embodiment of the present invention;
FIG. 2 is a front view of an ETV lift transfer vehicle according to an embodiment of the present invention;
FIG. 3 is a top view of an ETV lift transfer car according to an embodiment of the present invention;
fig. 4 is a side view of an ETV lift type transfer car according to an embodiment of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1. the safety protection device comprises a front upright post 2, a rear upright post 3, a top beam 4, an underframe 50, a lifting guide rail 51, a vertical upright frame 52, a transverse frame 53, an upper beam 54, a lower beam 55, a horizontal guide wheel 56, a vertical guide wheel 57, a detection railing 58, a detection walkway 59, a safety protection railing 510, a pulley block 6, an electronic control system 7, an overspeed detection device 8, a cab 9, a safety protection system 10, a walking device 11, a rail system 12, an electronic control box 13, a chain 14, a frame 15, a roller 16, a driving roller 17, a friction extraction mechanism 18, a driving motor 19, a chain wheel 20, a walking motor 22, a mounting frame 23, a winding drum 24, a lifting steel wire rope 25, a lifting motor 26, a ground rail 27, a maintenance platform 28, a safety protection 29, a vertical safety ladder 30, an overspeed protection safety device 31, a top pulley block 32, a walkway plate 33 and an oil pressure buffer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The present invention will be described in further detail with reference to examples and embodiments.
Examples are given.
As shown in fig. 1, 2, 3 and 4, an ETV lifting transfer car comprises a front upright post 1, a rear upright post 2, a top beam 3, an underframe 4, a lifting platform, a lifting driving device, an overspeed detection device 7, an electric control system 6, a cab 8, a safety protection system 9, a running gear 10 and a track system 11; the inner side surfaces of the front upright post 1 and the rear upright post 2 are provided with a lifting guide rail 50 of the lifting platform, and the upper parts of the front upright post 1 and the rear upright post 2 are respectively provided with a steel structure maintenance platform 27; two ends of the top beam 3 are respectively fixed at the top ends of the front upright post 1 and the rear upright post 2, and form a portal frame together with the front upright post 1 and the rear upright post 2, and two groups of top pulleys 31 are arranged on the inner sides of the two ends of the top beam 3; the lifting platform consists of a vertical frame 51, a transverse frame 52, an upper cross beam 53, a lower cross beam 54, a horizontal guide wheel 55 and a vertical guide wheel 56, wherein the vertical frame 51 is vertically arranged at two sides of the middle part of the lifting platform, the transverse frame 52 is horizontally arranged at the bottom of the lifting platform, two ends of the upper cross beam 52 are respectively fixed at the top end of the vertical frame 51, the lower cross beam 52 is fixed at the bottom of the vertical frame 51, the inner side surface of the lower cross beam is fixedly connected with the outer side of the transverse frame 52, the horizontal guide wheel 55 is arranged at the bottom of the transverse frame 52, a track system is laid below the horizontal guide wheel 55 along the walking direction of the horizontal guide wheel, the vertical guide wheel 56 is fixed on the outer side surface of the vertical frame 51, and the vertical guide wheel 56 can roll on the lifting guide rail 50; a track system is arranged below the lifting platform, a detection railing 57 is arranged on the rear side of the lifting platform, the detection railing 57 is positioned on two sides of the rear upright post 2, a detection walkway 58 is arranged on the outer side of the detection railing 57, a safety protection railing 59 is arranged on the periphery of the detection walkway 58, a lifting driving device is arranged on the detection walkway 58 close to the rear upright post 2, two sets of pulley blocks 510 are arranged on the upper cross beam 53, and a cab 8 is arranged on the right side of the lifting platform; the lifting platform is arranged between the front upright post 1 and the rear upright post 2, and is driven and dragged by a lifting driving device, and the lifting platform moves up and down along the lifting guide rail 50 within a set height range; the lifting driving device is arranged at the rear side of the rear upright post 2 and is connected with the overspeed detection device 7; the electric control system 6 is arranged in an electric cabinet 12 on the outer side of the front upright post 1, and the safety protection system 9 is arranged at the top of the electric cabinet 12; the roller table is arranged below the lifting table and consists of a frame 14, a roller 15, a transmission roller 16 and a friction extraction mechanism 17, wherein the frame 14 is arranged on two sides of the roller table, two ends of the frame are respectively connected with two ends of the roller 15, the roller 15 is connected with the transmission roller 16, and the transmission roller 16 is provided with the friction extraction mechanism 17; the front side end of the driving roller 16 is provided with a driving mechanism, the driving mechanism is provided with a driving motor 18, a chain wheel 19 and a chain 13, the roller 15 is driven by the driving motor 18 through the chain wheel 19 and the chain, four sets of running devices 10 are arranged on the outer sides of the four corners of the frame 14, the running devices 10 are driven by running motors 20 positioned on two sides of the frame 14, and the running motors can drive the whole ETV to run on the track system together; the lifting driving device consists of a mounting frame 22, a winding drum 23, lifting steel wire ropes 24 and a lifting motor 25, wherein four lifting steel wire ropes 24 are wound on the winding drum 23; the lifting motor 25 drives a winding drum 23 and drives the lifting platform to lift and descend by bypassing the pulley block 510 on the upper cross beam 53 and the top pulley block 31 on the top beam 3 through a lifting steel wire rope 24; the cab 8 is arranged in front of the roller way table, and a pedestrian path is arranged between the roller way table and the cab 8; the track system comprises two parallel ground rails 26, the ground rails 26 are installed in a reserved ground foundation groove, and the rollers 15 are arranged between the two ground rails 26 side by side.
Wherein, in order to maintain the ETV top for the convenience, front column 1 and rear column 2 upper portion all are equipped with steel construction maintenance platform 27, can hold two people simultaneously and overhaul the operation on the maintenance platform 27, maintenance platform 27 periphery is equipped with safety protection rail 28, and maintenance platform 27 below is equipped with the perpendicular safe cat ladder 29 about running through, safe cat ladder 29 is installed in the side of front column 1 and rear column 2. An overspeed protection safety device 30 is further arranged on the lifting driving device, and the overspeed protection safety device 30 is electrically connected with the overspeed detection device 7. The vertical upright frame 51 is also provided with oblique beams 31 at the sides to further increase the supporting strength.
The interval of the rollers 15 is 305mm, and a detachable walkway plate 32 is also arranged between the adjacent rollers 15, so that the personnel can walk or overhaul when passing by in the shutdown process.
Meanwhile, in order to match the carrying capacity of the ETV to the goods, the lifting motor 25 adopts 2 55KW lifting motors, the driving mode adopts an alternating current frequency conversion mode, and the frequency converter adopted by the lifting motor is in a vector control mode.
The center distance between the two ground rails 26 is 5000mm, the ground rails 26 are installed in the reserved ground foundation groove, and the upper surfaces of the ground rails are 5mm higher than the ground.
The running gear 10 is provided with a hydraulic buffer 33, and is capable of mechanically limiting the running of the running gear to prevent the ETV from exceeding a safety zone.
When the ETV lifting transfer trolley works, the walking motor 20 drives the walking wheels 21 on the underframe 4 to enable the ETV to horizontally walk along the ground rails 26; a lifting steel wire rope 24 tied to the lifting platform, wherein the lifting steel wire rope 24 pulls the lifting platform to complete lifting motion along the lifting guide rail 50 under the driving of a lifting motor 25; the lifting platform is provided with a roller table, and the roller table and the ETV roller table are driven to synchronously rotate by the friction force of the extractor, so that the warehousing or ex-warehouse operation of the container plates or containers is completed.
In this example, the utility model designs the ETV lifting transfer trolley into a structure comprising a front upright post 1, a rear upright post 2, a top beam 3, an underframe 4, a lifting platform, a lifting driving device, an overspeed detecting device 7, an electric control system, a cab 8, a safety protection system 9, a walking device 10 and a track system 11, and a walking motor 20 of the walking device 10 drives a walking wheel 21 on the underframe 4 to enable the ETV to horizontally walk along a ground rail 26; a lifting steel wire rope 24 tied to the lifting platform, wherein the lifting steel wire rope 24 pulls the lifting platform to complete lifting motion along the lifting guide rail 50 under the driving of a lifting motor 25; the lifting platform is provided with a roller table, and the roller table and the ETV roller table are driven to synchronously rotate by the friction force of the extractor, so that the warehousing or ex-warehouse operation of the container plates or containers is completed. Its overall design is reasonable, and the structure is simple and convenient, and transport airport goods is multiple functional, and manufacturing cost is not high, and the operation is stable when transporting to the goods simultaneously, and the operation personnel simple operation can adapt to the transport of the air cargo of high-speed development completely. Thereby the purposes of novel design, reasonable structure and good application effect are achieved.
The above description is only the preferred embodiment of the ETV lift type transfer car of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and improvements can be made without departing from the inventive concept of the present invention, and these modifications and improvements are all within the protection scope of the present invention.
Claims (10)
1. An ETV lifting transfer trolley is characterized by comprising upright columns, a top beam, an underframe, a lifting platform, a lifting driving device, an overspeed detection device, an electric control system, a cab, a safety protection system, a traveling device and a track system; the upright posts are in a double-upright-post form and consist of a front upright post and a rear upright post, the inner side surfaces of the front upright post and the rear upright post are provided with lifting guide rails of the lifting platform, and the upper parts of the front upright post and the rear upright post are respectively provided with a steel structure maintenance platform; two ends of the top beam are respectively fixed at the top ends of the front upright post and the rear upright post, and form a portal frame together with the front upright post and the rear upright post, and two groups of top pulleys are arranged on the inner sides of the two ends of the top beam; the lifting platform consists of a vertical frame, a transverse frame, an upper cross beam, a lower cross beam, a horizontal guide wheel and a vertical guide wheel, wherein the vertical frame is vertically arranged at two sides of the middle part of the lifting platform, the transverse frame is horizontally arranged at the bottom of the lifting platform, two ends of the upper cross beam are respectively fixed at the top end of the vertical frame, the lower cross beam is fixed at the bottom of the vertical frame, the inner side surface of the lower cross beam is fixedly connected with the outer side of the transverse frame, the bottom of the transverse frame is provided with the horizontal guide wheel, a track system is laid below the horizontal guide wheel along the walking direction of the horizontal guide wheel, the outer side surface of the vertical frame is fixedly provided with the vertical guide wheel, and the vertical guide wheel can roll on the lifting guide rail; a track system is arranged below the lifting platform, detection handrails are arranged on the rear side of the lifting platform and are positioned on two sides of the rear upright post, a detection walkway is arranged on the outer side of the detection handrails, a safety protection handrail is arranged on the periphery of the detection walkway, a lifting driving device is arranged on the detection walkway close to the rear upright post, two sets of pulley blocks are arranged on the upper cross beam, and a cab is arranged on the right side of the lifting platform; the lifting platform is arranged between the front upright post and the rear upright post, is driven and dragged by a lifting driving device, and moves up and down along the lifting guide rail within a set height range; the lifting driving device is arranged on the rear side of the rear upright post and is connected with the overspeed detection device; the electric control system is arranged in an electric control box on the outer side of the front upright post, and the safety protection system is arranged at the top of the electric control box; the roller table is arranged below the lifting table and consists of a frame, a roller, a driving roller and a friction extraction mechanism, wherein the frame is arranged on two sides of the roller table, two ends of the frame are respectively connected with two ends of the roller, the roller is connected with the driving roller, and the friction extraction mechanism is arranged on the driving roller; the front side end of the transmission roller is provided with a transmission mechanism, the transmission mechanism is provided with a transmission motor, a chain wheel and a chain, the roller is driven by the transmission motor through the chain wheel and the chain, four sets of walking devices are arranged on the outer sides of the frame, which are close to four corners, the walking devices are driven by the walking motors positioned on two sides of the frame, and the walking devices can drive the whole ETV to run on the track system together; the lifting driving device consists of a mounting frame, a winding drum, lifting steel wire ropes and a lifting motor, wherein the winding drum is wound with four lifting steel wire ropes; the lifting motor drives a winding drum and drives the lifting platform to lift and run by winding a pulley block on the upper cross beam and a top pulley block on the top beam through a lifting steel wire rope; the cab is arranged in front of the roller way table, and a pedestrian path is arranged between the roller way table and the cab; the track system comprises two parallel ground rails, the ground rails are installed in a reserved ground foundation groove, and the rollers are arranged between the two ground rails side by side.
2. The ETV lifting transfer trolley according to claim 1, wherein a steel structure maintenance platform is arranged on the upper portions of the front upright post and the rear upright post, two persons can simultaneously carry out maintenance operation on the maintenance platform, safety protection fences are arranged on the periphery of the maintenance platform, a vertical safety ladder penetrating up and down is arranged below the maintenance platform, and the safety ladders are arranged on the side faces of the front upright post and the rear upright post.
3. An ETV lift truck according to claim 1, wherein an overspeed protection safety device is further provided on the lift drive, the overspeed protection safety device being electrically connected to the overspeed detection device.
4. An ETV lift transfer trolley according to claim 1, wherein the vertical uprights are further provided with oblique beams on their sides.
5. An ETV elevating transfer car as defined in claim 1, wherein the rollers are spaced 305mm apart and removable walkway plates are installed between adjacent rollers.
6. The ETV lift truck according to claim 1, wherein 2 55KW lift motors are used as the lift motors, the drive mode is ac frequency conversion, and the frequency converter is vector control.
7. The ETV lifting transfer trolley according to claim 1, wherein the cab is a totally enclosed frame structure, a large area of glass is installed on both sides for easy vision, an operation console functioning as a signal transmission and operation center is installed in the cab, and a display instrument panel, an ETV running and lifting switch are installed on the operation console.
8. An ETV elevating transfer cart as defined in claim 1 wherein said cab is provided with a door communicating with the load-carrying passenger walkway and a door communicating with the maintenance ladder.
9. The ETV elevating transfer car (buggy) as claimed in claim 1, wherein the distance between the centers of the two ground rails is 5000mm, and the ground rails are installed in the reserved ground foundation groove, and the upper surface of the ground rails is 5mm higher than the ground.
10. An ETV lift truck according to claim 1, wherein said running gear is provided with hydraulic bumpers and capable of mechanical running restraint to prevent ETV from exceeding safe areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120398850.7U CN214495567U (en) | 2021-02-23 | 2021-02-23 | ETV over-and-under type transfer car (buggy) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120398850.7U CN214495567U (en) | 2021-02-23 | 2021-02-23 | ETV over-and-under type transfer car (buggy) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214495567U true CN214495567U (en) | 2021-10-26 |
Family
ID=78221140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120398850.7U Active CN214495567U (en) | 2021-02-23 | 2021-02-23 | ETV over-and-under type transfer car (buggy) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214495567U (en) |
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2021
- 2021-02-23 CN CN202120398850.7U patent/CN214495567U/en active Active
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