CN218174447U - Double-drum European crane trolley - Google Patents
Double-drum European crane trolley Download PDFInfo
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- CN218174447U CN218174447U CN202222232542.4U CN202222232542U CN218174447U CN 218174447 U CN218174447 U CN 218174447U CN 202222232542 U CN202222232542 U CN 202222232542U CN 218174447 U CN218174447 U CN 218174447U
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Abstract
The utility model discloses a double-drum European crane trolley, which comprises a trolley frame, wherein a lifting device is arranged at the top of the trolley frame, the lifting device comprises two drums, a stepping hole is arranged on the trolley frame below the drums, a bidirectional lifting motor is fixedly connected between the two drums, the output shaft of the bidirectional lifting motor is in transmission connection with a speed reducer, the speed reducer is fixedly connected on the side wall of the trolley frame, and the output shaft of the speed reducer is in transmission connection with the drums; hoisting device is installed to the bottom of dolly frame, and hoisting device includes the mounting panel, mounting panel top fixedly connected with traveller, dolly frame bottom fixedly connected with sleeve, and traveller sliding connection is inside the sleeve, wire rope and traveller fixed connection on the reel, and the hoist is installed to the mounting panel bottom. Make the whole height that moves down of speed reducer and reel through above-mentioned setting, and then reduced this monkey's height for its hoisting height can improve, and then reduced the cost of newly-built factory building to a certain extent.
Description
Technical Field
The utility model relates to a hoist technical field especially relates to a two reel european style monkey.
Background
The European crane is manufactured based on European lightweight and modular design concepts, has the characteristics of compact structure, stable operation, reduced dead weight, reduced height, energy conservation and reduced consumption, greatly reduces the construction cost of a user for a crane operation workshop and the crane operation cost, and improves the overall quality and the operation performance of the crane.
Chinese patent CN211813159U discloses a trolley, this trolley top is provided with the motor, motor drive is connected with the speed reducer, speed reducer fixed connection is at the trolley top, because speed reducer fixed connection is at the top of trolley and the speed reducer often highly higher, this just makes the holistic height of trolley higher, and then makes the distance between this trolley bottom and the ground shorten, has reduced the lifting height to a certain extent to the cost of factory building has been improved to a certain extent.
SUMMERY OF THE UTILITY MODEL
The utility model provides a double-drum European style crane trolley to solve the above problems.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a double-reel European crane trolley comprises a trolley frame which is horizontally arranged, wherein both ends of one side of the bottom of the trolley frame are rotatably connected with a driving wheel, both ends of the other side of the bottom of the trolley frame are rotatably connected with a driven wheel, a trolley driving device for driving the driving wheel to rotate is mounted on the trolley frame, a lifting device is mounted at the top of the trolley frame and comprises two reels which are arranged at intervals in parallel, the reels are rotatably connected to the top of the trolley frame through mounting seats, a abdicating hole matched with the reels is formed in the trolley frame below the reels, a bidirectional lifting motor is fixedly connected to the top of the trolley frame between the two reels, two output shafts of the bidirectional lifting motor are respectively in transmission connection with a speed reducer, the two speed reducers are respectively and fixedly connected to the side wall of the trolley frame close to the speed reducers, and the output shafts of the speed reducers are in transmission connection with the reels close to the speed reducers;
hoisting device is installed to the bottom of dolly frame, and hoisting device includes the mounting panel that the level set up, the traveller of the vertical setting of mounting panel top fixedly connected with, and dolly frame bottom fixedly connected with corresponds the sleeve that sets up with the traveller, and traveller sliding connection is inside the sleeve, wire rope on the reel and rather than the traveller fixed connection that corresponds, and the hoist that is used for hoist and mount battery box is installed to the mounting panel bottom.
Preferably, the trolley driving device comprises a walking motor, an installation opening is formed in the edge of the trolley frame close to one side of the driving wheel, the walking motor is fixedly connected to the trolley frame at the installation opening, the walking motor is a double-output motor, two output shafts of the walking motor are in transmission connection with a transmission shaft, and the transmission shaft is in transmission connection with the driving wheel close to the transmission shaft.
Preferably, the bottom of the sleeve is arranged in a trumpet shape, and the top of the sliding column is arranged in a conical shape.
Preferably, sleeve top fixedly connected with goes up the gasket, goes up the gasket and passes through bolt fixed connection in the car frame bottom, and sliding column bottom fixed connection has the lower gasket that the level set up, and lower gasket passes through bolt fixed connection at the mounting panel top.
Preferably, the lifting appliance is rotatably connected with the mounting plate through a steering device, the steering device comprises a slewing bearing, an inner gear ring of the slewing bearing is fixedly connected with the mounting plate, an outer gear ring of the slewing bearing is fixedly connected with the lifting appliance, a steering speed-reducing motor is further fixedly connected to the mounting plate, an output shaft of the steering speed-reducing motor is in transmission connection with a driving gear, and the driving gear is meshed with the outer gear ring of the slewing bearing.
Preferably, the hoist include the hanger plate, the hanger plate passes through flange and slewing bearing's outer ring gear fixed connection, the grafting device is all installed to the both sides of hanger plate, the grafting device includes the spliced pole of two symmetries and vertical setting, two spliced poles all rotate with the hanger plate and are connected, the both ends of spliced pole all pass the hanger plate and its bottom extends to the hanger plate below, the plug-in components that the spliced pole bottom fixed connection has the level to set up, the plug-in components are used for inserting and establish in the frame of battery box in order to be connected with the battery box, the grafting device still includes electric putter, electric putter's stiff end fixed connection is at the hanger plate top, electric putter's piston end fixed connection has the push pedal with the perpendicular setting of electric putter, push pedal sliding connection is at the hanger plate top, the equal fixedly connected with in both sides of push pedal and the rack of electric putter parallel arrangement, spliced pole top cover be equipped with the gear and with gear fixed connection, the setting of gear and rack meshing.
Preferably, the edge of the bottom of the hanging plate is fixedly connected with a plurality of limiting plates, and the outer side walls of the limiting plates are arranged obliquely inwards; the plug-in is provided with a slot matched with the battery board frame.
Preferably, one side of the plug-in unit, which is far away from the connecting column, is provided with a mounting hole, an internal thread is formed in the mounting hole, a horizontally arranged limiting part is connected with the mounting hole through a thread, one end of the limiting part extends into the slot, and the other end of the limiting part penetrates through the plug-in unit and extends to the outer side of the plug-in unit and the end part of the limiting part is fixedly connected with a handle.
Preferably, the mounting rack is fixedly connected to two sides of one end of the trolley frame, the two horizontal wheels are symmetrically arranged at intervals in the mounting rack, and the symmetric axes of the two horizontal wheels in the mounting rack are perpendicular to the central axis of the winding drum in the length direction.
Preferably, both sides of the other end of the trolley frame are fixedly connected with buffer columns, and the outer side wall of the mounting frame is also fixedly connected with the buffer columns; the reel be the duplex reel, the traveller be four and four traveller respectively fixedly connected with mounting panel top four corners department, correspondingly, telescopic quantity also be four and equal fixedly connected with stiffener between two adjacent sleeves.
The utility model discloses the beneficial effect who has does: the utility model discloses a set up the speed reducer on the lateral wall of dolly frame to set up the hole of stepping down with reel looks adaptation at dolly frame top, make the height of speed reducer and reel wholly move down, and then reduced the height of this crane trolley, make its lifting height improve, and then reduced the cost of newly-built factory building to a certain extent; the connection between the trolley frame and the lifting appliance is realized by arranging the sleeve and the sliding column, so that the shaking of the battery box in the lifting process is reduced to a certain extent, and the lifting safety is improved; through with walking motor fixed connection in the middle of the dolly frame to drive two action wheels through a walking motor and rotate, reduced the setting of walking motor, and then reduced manufacturing cost and hoist operation energy consumption to a certain extent.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the carriage frame of the present invention;
FIG. 3 is a schematic view of the connection between the hanger plate and the inserting device of the present invention;
fig. 4 is a schematic diagram of the connection relationship between the plug-in unit and the limiting unit according to the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The utility model provides a two reel 2 european style monkey, as shown in fig. 1 and fig. 2, including the dolly frame 1 that the level set up, the both ends of dolly frame 1 bottom one side all rotate and are connected with action wheel 11, the both ends of dolly frame 1 bottom opposite side all rotate and are connected with from the driving wheel, install on the dolly frame 1 and be used for driving action wheel 11 pivoted dolly drive arrangement, the device that plays to rise is installed at dolly frame 1 top, play to rise the device and include two interval and parallel arrangement's reel 2, reel 2 rotates through the mount pad and connects at dolly frame 1 top, the hole of stepping down 3 with reel 2 looks adaptation is seted up at dolly frame 1 top of reel 2 below, dolly frame 1 top fixedly connected with two-way play to rise motor 4 between two reel 2, two output shafts of two-way play to rise motor 4 all with reel 2 along length direction's the central axis parallel arrangement along length direction's central axis along the central axis along length direction, two output shafts of two-way motor 4 all transmit and be connected with 5, all fixedly connected with backup pad 6 on the lateral wall at dolly frame 1 both ends, backup pad 6 is located the lower part of lateral wall of two output shafts of frame 1 lateral wall, two-way of dolly 5 all transmit to be connected with its speed reducer and its speed reducer on the lateral wall of the dolly frame 2 that the speed reducer. Because speed reducer 5 fixed connection is on the lateral wall of dolly frame 1 for the height that speed reducer 5 stretches out dolly frame 1 top reduces, sets up the hole of stepping down 3 on dolly frame 1 simultaneously, is convenient for with the altitude mixture control of reel 2 low, thereby makes the height reduction of whole dolly, and then has improved its hoisting height to a certain extent, has reduced the cost of factory building construction.
Hoisting device is installed to the bottom of dolly frame 1, and hoisting device includes mounting panel 7 that the level set up, and the traveller 8 of the vertical setting of mounting panel 7 top fixedly connected with, 1 bottom fixedly connected with of dolly frame corresponds the sleeve 9 that sets up with traveller 8, and inside traveller 8 sliding connection was 9 the sleeve, wire rope on the reel 2 and the traveller 8 fixed connection rather than corresponding, the hoist that is used for hoist and mount battery box was installed to mounting panel 7 bottom. During the use, the hoist is connected with the battery box, starts two-way lifting motor 4, and two-way lifting motor 4 drives speed reducer 5 and rotates, and speed reducer 5 drives reel 2 and rotates to realize wire rope's receipts rope and put the rope, and then drive traveller 8 and rise and descend along sleeve 9, thereby realize the handling of battery box.
In another embodiment, as shown in fig. 1 and 2, the trolley driving device includes a walking motor 10, an installation opening is formed in the edge of the trolley frame 1 on the side close to the driving wheel 11, the walking motor 10 is fixedly connected to the trolley frame 1 at the installation opening, the walking motor 10 is a dual-output motor, two output shafts of the walking motor are both in transmission connection with a transmission shaft, and the transmission shaft is in transmission connection with the driving wheel 11 close to the transmission shaft. Through driving two action wheels 11 operation with walking motor 10, action wheel 11 drives from the driving wheel rotation to realize the removal of dolly frame 1, through this kind of mode of setting, reduced walking motor 10's setting on the one hand, on the other hand has guaranteed the synchronization of two action wheels 11, also makes the structure compacter.
In another embodiment, as shown in FIG. 1, the bottom of the sleeve 9 is flared and the top of the spool 8 is tapered. The flared sleeve 9 and the conically arranged spool 8 both facilitate the cooperation between the sleeve 9 and the spool 8.
In another embodiment, the top of the sleeve 9 is fixedly connected with an upper gasket which is fixedly connected to the bottom of the trolley frame 1 through a bolt, the bottom of the sliding column 8 is fixedly connected with a horizontally arranged lower gasket, and the lower gasket is fixedly connected to the top of the mounting plate 7 through a bolt. The sleeve 9 and the sliding column 8 are fixedly connected with the crane trolley through bolts, so that the crane trolley is convenient to produce and transport, and is also convenient to install on site and replace in later period.
In another embodiment, as shown in fig. 1, the hanger is rotatably connected to the mounting plate 7 through a steering device, the steering device includes a slewing bearing 12, an inner gear ring of the slewing bearing 12 is fixedly connected to the mounting plate 7, an outer gear ring of the slewing bearing 12 is fixedly connected to the hanger, a steering gear motor 13 is further fixedly connected to the mounting plate 7, an output shaft of the steering gear motor 13 is in transmission connection with a driving gear 14, and the driving gear 14 is engaged with the outer gear ring of the slewing bearing 12. The turning speed reducing motor 13 is started, the turning speed reducing motor 13 drives the driving gear 14 to rotate, the driving gear 14 drives the outer ring of the slewing bearing 12 to rotate, and therefore the lifting appliance can rotate, the angle of the lifting appliance can be adjusted conveniently after the lifting appliance rotates, and the lifting appliance can be connected with a corresponding battery box.
In another embodiment, as shown in fig. 1 and fig. 3, the lifting appliance includes a hanging plate 15, the hanging plate 15 is fixedly connected with an outer gear ring of the slewing bearing 12 through a flange, two sides of the hanging plate 15 are both provided with a plugging device, the plugging device includes two symmetrical and vertically arranged connecting columns 16, the two connecting columns 16 are both rotatably connected with the hanging plate 15, two ends of each connecting column 16 penetrate through the hanging plate 15 and the bottom end of each connecting column extends to the lower side of the hanging plate 15, the bottom of each connecting column 16 is fixedly connected with a horizontally arranged plug-in unit 17, the plug-in unit 17 is used for being plugged in a frame of a battery box to be connected with the battery box, the plugging device further includes an electric push rod 18, the fixed end of the electric push rod 18 is fixedly connected to the top of the hanging plate 15, the piston end of the electric push rod 18 is fixedly connected with a push plate 25 which is perpendicular to the electric push rod 18, the bottom of the push plate 25 is slidably connected with a slide way through a slide block, the slide way is fixedly connected to the top of the hanging plate 15, two sides of the push plate 25 are both fixedly connected to the rack connecting column 20 which is fixedly connected to the electric push plate 18, the top of the push plate 25, the top of the rack connecting column 19 is fixedly connected to be parallel to the gear 19, the top of the gear 19 is sleeved on the top of the push plate 16, and fixedly connected with the gear 19, and the rack connecting column 20, and the gear 19 is meshed with the gear 19. During the use, through starting electric putter 18, electric putter 18's piston end extension to drive push pedal 25 and slide to the direction of keeping away from electric putter 18, push pedal 25 gliding in-process drives rack 20 and removes to the direction of keeping away from electric putter 18, and then drives gear 19 and rotates, thereby realizes the rotation of spliced pole 16 and plug-in components 17 that are located spliced pole 16 bottom, and then makes plug-in components 17 be connected with the battery box.
In another embodiment, as shown in fig. 1, a plurality of position limiting plates 20 are fixedly connected to the bottom edge of the hanger plate 15, and the outer side walls of the position limiting plates 20 are arranged obliquely inward; the plug-in 17 is provided with a slot 26 matched with the battery panel frame. After the plug-in 17 is inserted into the frame of the battery box, the battery box may slip, and therefore, the bottom of the hanging plate 15 is provided with a plurality of limiting plates 20, in this embodiment, the number of the limiting plates 20 is 6, two of the 6 limiting plates 20 are correspondingly arranged, two of the two limiting plates are correspondingly arranged on two short edges of the bottom of the hanging plate 15, the other four limiting plates 20 are correspondingly arranged on two long edges of the bottom of the hanging plate 15, and the inner side walls of the limiting plates 20 abut against the inner side walls of the frame of the battery box, so that the slipping of the battery box is reduced to a certain extent; meanwhile, the arrangement of the slot 26 is convenient for placing the frame of the battery box in the slot 26, and the slippage of the battery box is further reduced.
In another embodiment, as shown in fig. 1 and 4, a mounting hole is formed in one side of the plug 17 away from the connecting column 16, an internal thread is formed in the mounting hole, a horizontally disposed limiting member 21 is connected to the mounting hole by a thread, one end of the limiting member 21 extends into the slot 26, the other end of the limiting member 21 passes through the plug 17 and extends to the outer side of the plug 17, and a handle 22 is fixedly connected to the end of the limiting member 21. Handle 22 is held to the hand and is rotated spacing for the distance between locating part 21 tip and the inside wall of slot 26 is suitable for the battery box frame, thereby reduces rocking of battery box, guarantees the stability of lifting by crane.
In another embodiment, as shown in fig. 2, both sides of one end of the trolley frame 1 are fixedly connected with a mounting rack, two horizontal wheels 23 which are arranged at intervals and symmetrically are rotatably connected in the mounting rack, and the symmetric axes of the two horizontal wheels 23 in the mounting rack are perpendicular to the central axis of the winding drum 2 along the length direction. Through setting up horizontal wheel 23 and being convenient for two horizontal wheels 23 to press from both sides tight I-steel track to make the monkey more steady in the in-process of traveling.
In another embodiment, as shown in fig. 2, both sides of the other end of the trolley frame 1 are fixedly connected with a buffer column 24, and the outer side wall of the mounting frame is also fixedly connected with the buffer column 24; reel 2 be pair reel 2, traveller 8 be four and four traveller 8 four corners departments at 7 tops of fixedly connected with mounting panel respectively, correspondingly, the quantity of sleeve 9 also be four and adjacent two equal fixedly connected with stiffener between the sleeve 9. The arrangement of the four sliding columns 8 and the sleeve 9 enables the trolley to be more stable in the process of hoisting the battery box, the swinging of the battery box in the hoisting process is reduced, and the strength of the trolley is improved due to the arrangement of the reinforcing rods.
The using method comprises the following steps: when the battery box is used, the steering speed-reducing motor 13 is started, the steering speed-reducing motor 13 drives the gear 19 to rotate, the gear 19 drives the outer ring of the slewing bearing 12 to rotate, the hanger plate 15 rotates relative to the mounting plate 7, when the hanger plate 15 rotates to a proper position, the bidirectional lifting motor 4 is started, the lifting motor drives the speed reducer 5 to rotate, the speed reducer 5 drives the winding drum 2 to rotate, the steel wire rope is used for releasing the rope, the sliding column 8 slides downwards along the sleeve 9, when the plug-in 17 falls to a proper height, the electric push rod 18 is started, the piston rod end of the electric push rod 18 extends, the push plate 25 moves towards the direction far away from the electric push rod 18, the rack 20 drives the gear 19 to rotate, the connecting column 16 rotates, the connecting column 16 drives the plug-in 17 to rotate, the frame of the battery box falls into the slot 26, the bidirectional lifting motor 4 is started, the steel wire rope retracts to drive the sliding column 8 to slide upwards along the sleeve 9, and the transfer of the battery box is realized.
The above embodiments are not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the technical solution of the present invention to any simple modification, equivalent change and modification of the above embodiments.
Claims (10)
1. The utility model provides a two reel European monkey, includes the dolly frame that the level set up, and the both ends of dolly frame bottom one side all rotate and are connected with the action wheel, and the both ends of dolly frame bottom opposite side all rotate and are connected with from the driving wheel, install on the dolly frame to be used for driving action wheel pivoted dolly drive arrangement, and the dolly frame top is installed and is risen device, its characterized in that: the lifting device comprises two winding drums which are arranged at intervals in parallel, the winding drums are rotatably connected to the top of a trolley frame through mounting seats, a stepping hole matched with the winding drums is formed in the trolley frame below the winding drums, the top of the trolley frame between the two winding drums is fixedly connected with a bidirectional lifting motor, two output shafts of the bidirectional lifting motor are in transmission connection with speed reducers, the two speed reducers are fixedly connected to the side wall of the trolley frame close to the speed reducers, and the output shafts of the speed reducers are in transmission connection with the winding drums close to the speed reducers;
hoisting device is installed to the bottom of dolly frame, and hoisting device includes the mounting panel that the level set up, the traveller of the vertical setting of mounting panel top fixedly connected with, and dolly frame bottom fixedly connected with corresponds the sleeve that sets up with the traveller, and traveller sliding connection is inside the sleeve, wire rope on the reel and the traveller fixed connection who corresponds rather than, and the hoist that is used for hoist and mount battery box is installed to the mounting panel bottom.
2. A double drum european crane trolley according to claim 1, wherein: the trolley driving device comprises a walking motor, an installation opening is formed in the edge of the trolley frame close to one side of the driving wheel, the walking motor is fixedly connected to the trolley frame at the installation opening, the walking motor is a double-output motor, two output shafts of the double-output motor are in transmission connection with a transmission shaft, and the transmission shaft is in transmission connection with the driving wheel close to the transmission shaft.
3. A dual drum european crane carriage as claimed in claim 1, wherein: the bottom of the sleeve is arranged in a trumpet shape, and the top of the sliding column is arranged in a cone shape.
4. A dual drum european crane carriage as claimed in claim 3 wherein: the sleeve top fixedly connected with upper gasket, upper gasket pass through bolt fixed connection in the car frame bottom, and traveller bottom fixedly connected with has the lower gasket that the level set up, and lower gasket passes through bolt fixed connection at the mounting panel top.
5. A double drum european crane trolley according to claim 2, wherein: the lifting appliance is rotatably connected with the mounting plate through a steering device, the steering device comprises a slewing bearing, an inner gear ring of the slewing bearing is fixedly connected with the mounting plate, an outer gear ring of the slewing bearing is fixedly connected with the lifting appliance, a steering speed reduction motor is further fixedly connected onto the mounting plate, an output shaft of the steering speed reduction motor is in transmission connection with a driving gear, and the driving gear is meshed with the outer gear ring of the slewing bearing.
6. A dual drum European crane carriage as claimed in claim 5 wherein: the hoist include the hanger plate, the hanger plate passes through flange and slewing bearing's outer ring gear fixed connection, the grafting device is all installed to the both sides of hanger plate, the grafting device includes the spliced pole of two symmetries and vertical setting, two spliced poles all rotate with the hanger plate and are connected, the both ends of spliced pole all pass the hanger plate and its bottom extends to the hanger plate below, the plug-in components that the spliced pole bottom fixed connection has the level to set up, the plug-in components are used for inserting and establish in the frame of battery box in order to be connected with the battery box, the grafting device still includes electric putter, electric putter's stiff end fixed connection is at the hanger plate top, electric putter's piston end fixed connection has the push pedal with the perpendicular setting of electric putter, push pedal sliding connection is at the hanger plate top, the equal fixedly connected with of both sides of push pedal and electric putter parallel arrangement's rack, the spliced pole top cover be equipped with the gear and with gear fixed connection, the tooth and rack toothing setting.
7. A dual drum european crane carriage as claimed in claim 6, wherein: the edge of the bottom of the hanging plate is fixedly connected with a plurality of limiting plates, and the outer side walls of the limiting plates are arranged in an inclined inward mode; the plug-in is provided with a slot matched with the battery board frame.
8. A dual drum european crane carriage as claimed in claim 7, wherein: the plug-in components are kept away from one side of spliced pole and have been seted up the mounting hole, set up the internal thread in the mounting hole, threaded connection has the locating part that the level set up in the mounting hole, and the one end of locating part extends to in the slot, and the other end of locating part passes the plug-in components and extends to the outside of plug-in components and its tip fixedly connected with handle.
9. A dual drum european crane carriage as claimed in claim 1, wherein: the equal fixedly connected with mounting bracket in both sides of dolly frame one end, the mounting bracket internal rotation is connected with the horizon wheel of two intervals and symmetry setting, and the central axis mutually perpendicular along length direction is followed with the reel to the axis of symmetry of two horizon wheels in the mounting bracket.
10. A dual drum european crane carriage as claimed in claim 9 wherein: the two sides of the other end of the trolley frame are fixedly connected with buffer columns, and the outer side wall of the mounting frame is also fixedly connected with the buffer columns; the reel be the duplex reel, the traveller be four and four traveller respectively fixedly connected with mounting panel top four corners department, correspondingly, telescopic quantity also be four and equal fixedly connected with stiffener between two adjacent sleeves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222232542.4U CN218174447U (en) | 2022-08-24 | 2022-08-24 | Double-drum European crane trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222232542.4U CN218174447U (en) | 2022-08-24 | 2022-08-24 | Double-drum European crane trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218174447U true CN218174447U (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222232542.4U Active CN218174447U (en) | 2022-08-24 | 2022-08-24 | Double-drum European crane trolley |
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| Country | Link |
|---|---|
| CN (1) | CN218174447U (en) |
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2022
- 2022-08-24 CN CN202222232542.4U patent/CN218174447U/en active Active
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