CN114435443A - Lifting trolley with stable structure and use method - Google Patents
Lifting trolley with stable structure and use method Download PDFInfo
- Publication number
- CN114435443A CN114435443A CN202111594818.7A CN202111594818A CN114435443A CN 114435443 A CN114435443 A CN 114435443A CN 202111594818 A CN202111594818 A CN 202111594818A CN 114435443 A CN114435443 A CN 114435443A
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- Prior art keywords
- rod
- lifting platform
- connecting rod
- rotate
- rotating
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/06—Hand moving equipment, e.g. handle bars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2203/00—Grasping, holding, supporting the objects
- B62B2203/10—Grasping, holding, supporting the objects comprising lifting means
Abstract
The invention provides a lifting trolley with a stable structure and a using method thereof, and the lifting trolley comprises a base, a lifting platform, a pull rod, a first connecting rod, a second connecting rod, a rotating rod, a supporting plate and a limiting rod, wherein the lifting platform is arranged above the base, one end of the pull rod is rotatably arranged on the base, one end of the first connecting rod is hinged with the middle part of the pull rod, the other end of the first connecting rod is rotatably connected with the lifting platform, a plurality of second connecting rods are arranged on the base, one end of each second connecting rod is rotatably connected with the lifting platform, the plurality of rotating rods are provided, two ends of each rotating rod are rotatably arranged on the base, the other end of each second connecting rod is rotatably arranged on the base or the rotating rod, the limiting rod is arranged on the base and is positioned at one side of the second connecting rods, the rotating angle of the second connecting rods is limited, the supporting plate is positioned below the lifting platform, one end of the supporting plate is fixedly arranged on the rotating rod, and the other end of the supporting the lifting platform. The control device is connected with the adjusting handle and controls the movement of the adjusting handle. Through above-mentioned technical scheme, the unstable problem of lift platform structure has been solved.
Description
Technical Field
The invention relates to a transport trolley, in particular to a lifting trolley with a stable structure and a using method thereof.
Background
The lifting trolley is a small transportation and carrying device, is widely applied to daily life, warehouses and factory workshops due to flexible operation, convenient use and space saving, and can be used for transporting goods stacked on pallets. The lifting trolley is generally: before transporting goods, the lifting platform is in a descending state, the goods are supported by the lifting platform through ascending, and then the lifting platform is always in an ascending state in the walking process of the trolley. Under the pressure of goods, can cause the unstability of dolly very easily, influence efficiency and security in the dolly operation process, the reliability is poor.
Disclosure of Invention
The invention mainly aims to provide a lifting trolley with a stable structure and a using method thereof, so as to solve the problem of unstable structure of a lifting platform.
In order to solve the technical problems, the invention adopts the technical scheme that:
a lifting trolley with a stable structure comprises:
a base body;
the lifting platform is arranged above the base body;
one end of the pull rod is rotatably arranged on the seat body;
one end of the first connecting rod is hinged with the middle part of the pull rod, and the other end of the first connecting rod is rotatably connected with the lifting platform;
a plurality of second connecting rods, wherein one end of each second connecting rod is rotatably connected with the lifting platform;
the number of the rotating rods is multiple, two ends of each rotating rod are rotatably arranged on the base body, and the other end of the second connecting rod is rotatably arranged on the base body or the rotating rod;
the control device is connected with the rotating rod and controls the rotating rod to rotate;
the limiting rod is arranged on the seat body and is positioned on one side, close to the pull rod, of the second connecting rod, and the limiting rod limits the rotating angle of the second connecting rod;
the supporting plate is located below the lifting platform, one end of the supporting plate is fixedly arranged on the rotating rod, and the other end of the supporting plate is used for supporting the lifting platform.
As a further technical solution, the seat body includes:
the pull rod is connected with the frame body in a rotating mode, the rotating rod is arranged in the frame body, two ends of the rotating rod are arranged on the frame body in a rotating mode, and the mounting groove is formed in the outer wall of the frame body in a surrounding mode.
As a further technical scheme, the rotating rod is rotatably arranged on the frame body through a transmission device.
As a further technical solution, the transmission comprises:
a plurality of gears are sleeved at the end part of the rotating rod respectively so as to drive the rotating rod to rotate, and the gears are rotatably arranged in the mounting grooves;
the rack is arranged in the mounting groove in a sliding mode and meshed with the gear;
the adjusting device drives the rack to slide, the control device is connected with the adjusting device, and the control device controls the adjusting device to enable the adjusting device to drive the rack (92) to slide.
As a further technical solution, the adjusting device includes:
the connecting plate is vertically connected with one end of the rack;
the screw rod is rotationally arranged on the frame body, and the connecting plate is movably arranged on the screw rod through threads;
and the adjusting handle is arranged at one end of the screw rod and drives the screw rod to rotate. The control device is connected with the adjusting handle so as to control the movement of the adjusting handle.
As a further technical scheme, the two ends of the rotating rod are provided with the gears, the two racks are respectively arranged in the mounting grooves on the two opposite sides of the frame body and are respectively meshed with the gears at the two ends of the rotating rod, and one ends of the two racks are respectively vertically connected with the two ends of the connecting plate.
As a further technical scheme, the backup pad is trapezoidal plate, the backup pad is kept away from the tip of bull stick is provided with the supporting pad, the supporting pad is the bar, and its cross section is semi-circular.
A use method of a lifting trolley with a stable structure comprises the following steps:
firstly, when the lifting platform is positioned at the bottommost part, the trolley is placed below goods to be moved;
operating the control device to drive the rotating rod to rotate, drive the supporting plate and the second connecting rod to rotate upwards, enable the supporting plate to prop against the lifting platform and drive the lifting platform to move upwards, and then the goods can be lifted;
when the second connecting rod rotates to a vertical state, the second connecting rod is perpendicular to and in contact with the limiting rod, the limiting rod limits the position of the second connecting rod, and the trolley is pulled to move;
and fourthly, operating the control device to enable the control device to transfer the rotating rod to rotate in the opposite direction, driving the supporting plate and the second connecting rod to rotate downwards, and driving the goods to move downwards by the lifting platform to lift the goods off.
The invention has the beneficial effects that:
the lifting platform is driven to move up and down by the matching of the pull rod, the first connecting rod and the second connecting rod, and the rotating rod is utilized to drive the supporting plate to rotate, so that the supporting plate supports the lifting platform when the lifting platform is in a lifting state, the stability of the lifting platform in the lifting state is enhanced, the swinging and the inclination are avoided, and the lifting platform is safe and reliable.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic perspective view of the elevating platform of the present invention in a raised state;
FIG. 2 is a schematic perspective view of the transmission of the present invention;
fig. 3 is a schematic structural view of the descending state of the lifting platform of the present invention.
Description of the reference numerals
1. The pedestal, 11, framework, 12, mounting groove, 2, elevating platform, 3, pull rod, 4, first connecting rod, 5, second connecting rod, 6, bull stick, 7, gag lever post, 8, backup pad, 9, transmission, 91, gear, 92, rack, 93, adjusting device, 931, connecting plate, 932, lead screw, 933, adjustment handle, 10, supporting pad.
Detailed Description
The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the drawings in the embodiments of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1, the present embodiment provides a lifting trolley with a stable structure, which includes:
a seat body 1;
the lifting platform 2 is arranged above the base body 1;
one end of the pull rod 3 is rotatably arranged on the seat body 1;
one end of the first connecting rod 4 is hinged with the middle part of the pull rod 3, and the other end of the first connecting rod 4 is rotatably connected with the lifting platform 2;
a plurality of second connecting rods 5, wherein one end of each second connecting rod 5 is rotatably connected with the lifting platform 2;
a plurality of rotating rods 6, wherein both ends of each rotating rod 6 are rotatably arranged on the seat body 1, and the other end of the second connecting rod 5 is rotatably arranged on the seat body 1 or the rotating rod 6;
the control device is connected with the rotating rod 6 and controls the rotating rod 6 to rotate;
the limiting rod 7 is arranged on the seat body 1, is positioned on one side of the second connecting rod 5 close to the pull rod 3, and limits the rotation angle of the second connecting rod 5;
and the supporting plate 8 is positioned below the lifting platform 2, one end of the supporting plate 8 is fixedly arranged on the rotating rod 6, and the other end of the supporting plate 8 is used for supporting the lifting platform 2.
Further, the seat body 1 includes:
the frame body 11, the pull rod 3 with the frame body 11 rotates and is connected, the bull stick 6 sets up in the frame body 11, and both ends rotate and set up on the frame body 11, around the outer wall of frame body 11 has seted up mounting groove 12.
Further, the rotating rod 6 is rotatably arranged on the frame body 11 through a transmission device 9.
Further, the transmission 9 includes:
a plurality of gears 91 are sleeved at the end of the rotating rod 6 respectively so as to drive the rotating rod 6 to rotate, and the gears 91 are rotatably arranged in the mounting groove 12;
the rack 92 is arranged in the mounting groove 12 in a sliding mode, and the rack 92 is meshed with the gear 91;
the adjusting device 93 drives the rack 92 to slide;
the control device is connected with the adjusting device, and the control device controls the adjusting device to enable the adjusting device to drive the rack 92 to slide.
Further, the adjusting device 93 includes:
a connecting plate 931, the connecting plate 931 being vertically connected to one end of the rack 92;
a screw 932 rotatably provided on the frame 11, and the connecting plate 931 is provided on the screw 932 through a screw movement;
the adjusting handle 933 is arranged at one end of the screw rod 932 and drives the screw rod 932 to rotate;
the control means is connected to the adjustment handle 933 so as to control the movement of the adjustment handle 933.
Further, the two ends of the rotating rod 6 are provided with the gears 91, the two racks 92 are respectively arranged in the mounting grooves 12 on the two opposite sides of the frame 11, and are respectively engaged with the gears 91 on the two ends of the rotating rod 6, and one ends of the two racks 92 are respectively vertically connected with the two ends of the connecting plate 931.
Further, the supporting plate 8 is a trapezoidal plate, a supporting pad 10 is arranged at the end part, far away from the rotating rod 6, of the supporting plate 8, the supporting pad 10 is strip-shaped, and the cross section of the supporting pad is semicircular.
A use method of a lifting trolley with a stable structure comprises the following steps:
firstly, when the lifting platform 2 is positioned at the bottommost part, the trolley is placed below goods to be moved;
operating the control device to enable the control device to drive the rotating rod 6 to rotate, drive the supporting plate 8 and the second connecting rod 5 to rotate upwards, enable the supporting plate 8 to prop against the lifting platform 2, and drive the lifting platform 2 to move upwards, and then the goods can be lifted;
when the second connecting rod 5 rotates to a vertical state, the second connecting rod is perpendicular to and in contact with the limiting rod 7, the limiting rod 7 limits the position of the second connecting rod 5, and the trolley is pulled to move;
fourthly, operating the control device to enable the control device to drive the rotating rod 6 to rotate in the opposite direction, driving the supporting plate 8 and the second connecting rod 5 to rotate downwards, and driving the goods to move downwards by the lifting platform 2 to lift the goods off.
As shown in fig. 1-3, the invention provides a lifting trolley with a stable structure, which mainly comprises a base body 1, a lifting table 2, a pull rod 3, a first connecting rod 4, a second connecting rod 5, a rotating rod 6, a limiting rod 7, a supporting plate 8 and a transmission device 9.
The base body 1 comprises a frame body 11, universal wheels are arranged on four corners of the frame body 11, a mounting groove 12 is formed on the outer wall of the frame body 11 in a surrounding mode, a lifting platform 2 is arranged above the frame body 11, one end of a pull rod 3 is rotatably arranged on the frame body 11, one end of a first connecting rod 4 is hinged to the middle of the pull rod 3, the other end of the first connecting rod 4 is rotatably connected with the lifting platform 2, a plurality of second connecting rods 5 are arranged, one end of each second connecting rod is rotatably connected with the lifting platform 2, a plurality of rotating rods 6 are arranged in the frame body 11, two ends of each rotating rod are rotatably arranged on the frame body 11, the other end of each second connecting rod 5 is rotatably arranged on the frame body 11 or the rotating rod 6, a limiting rod 7 is arranged on the frame body 11 and is positioned on one side, close to the pull rod 3, of each second connecting rod 5, the rotating angle of each second connecting rod 5 is limited, a supporting plate 8 is positioned below the lifting platform 2 and is positioned in the frame body 11, one end of each rotating rod is fixedly arranged on the corresponding rotating rod 6, the other end is used for supporting elevating platform 2, and backup pad 8 is trapezoidal plate, and the tip that bull stick 6 was kept away from to backup pad 8 is provided with supporting pad 10, and supporting pad 10 is the bar, and its cross section is semi-circular.
The bull stick 6 passes through transmission 9 and rotates the setting on framework 11, transmission 9 includes gear 91, rack 92 and adjusting device 93, gear 91 is a plurality ofly, establish respectively that the both ends of establishing bull stick 6 drive bull stick 6 and rotate, and rotate and set up in mounting groove 12, rack 92 is two, slide respectively and set up in the mounting groove 12 on the relative both sides of framework 11, two racks 92 mesh with the gear 91 at bull stick 6 both ends respectively, adjusting device 93 drives rack 92 and slides, adjusting device 93 includes connecting plate 931, lead screw 932 and adjustment handle 933, the both ends of connecting plate 931 are connected with the one end of two racks 92 is perpendicular respectively, lead screw 932 rotates the setting on framework 11, connecting plate 931 sets up on lead screw 932 through the screw thread removal, adjustment handle 933 sets up the one end at lead screw 932, it rotates to drive lead screw 932. The control device is electrically connected with the adjusting handle, a control knob can be arranged on the control device, and the adjusting handle is controlled by screwing the control knob, so that intelligent control is realized.
This embodiment is at the operation in-process, drive the dwang through revolving the knob and rotate, drive the backup pad upwards and rotate, make the backup pad top support the elevating platform, it rises to drive the elevating platform, at this moment, the upper end of second connecting rod 5 of elevating platform 2 below rotates to the one side that is close to pull rod 3, the rising motion of cooperation elevating platform 2, when second connecting rod 5 rotates to vertical state, perpendicular and the contact with gag lever post 7, gag lever post 7 is injectd the position of second connecting rod 5 this moment, make pull rod 3 unable continuation pulling again, the rising motion of elevating platform 2 has been realized promptly. The setting of gag lever post 7 is injectd second connecting rod 5 to the turned angle who is close to the connecting rod direction, makes elevating platform 2 rise and holds up behind the goods, continues to stimulate pull rod 3 and can drive the dolly operation to realize the operation of dolly. After elevating platform 2 rises, continue to twist and twist control knob, control adjustment handle 933, adjustment handle 933 drives lead screw 932 and rotates, make connecting plate 931 remove to the direction that is close to framework 11 on lead screw 932, the rack 92 that drives framework 11 both sides slides in mounting groove 12, gear 91 rotates under the drive of rack 92, drive bull stick 6 and rotate, thereby drive backup pad 8 and rotate to the direction that is close to pull rod 3, when rotating to being close vertical or vertical state, the supporting pad 10 of backup pad 8 top is tight to the lower surface top of elevating platform 2, thereby realize the support to elevating platform 2, make elevating platform 2 keep steadily all the time transporting the in-process of goods, and reasonable in design, high reliability, practicality safety. Supporting pad 10's cross section is semi-circular, and supporting pad 10 is the elasticity material, is favorable to realizing the rotation of backup pad 8 in elevating platform 2 below, avoids elevating platform 2 to disturb the rotation of backup pad 8, also avoids 2 lower surfaces of elevating platform to take place wearing and tearing, increase of service life simultaneously.
When the lifting platform 2 descends, the control knob is operated reversely, so that the adjusting handle 933 drives the screw rod 932 to rotate reversely, the connecting plate 931 moves on the screw rod 932 in the direction away from the frame body 11, the racks 92 on the two sides of the frame body 11 are driven to slide reversely in the mounting groove 12, the gear 91 is driven by the racks 92 to rotate reversely, the rotating rod 6 is driven to rotate reversely, and the supporting plate 8 is driven to rotate in the direction away from the pull rod 3, so that the supporting of the lifting platform 2 is separated, and the lifting platform is retracted into the frame body 11, and the normal operation of the trolley is not hindered; then the pull rod 3 is rotated reversely, the pull rod 3 drives the lifting platform 2 to descend through the first connecting rod 4, at the moment, the upper end of the second connecting rod 5 below the lifting platform 2 rotates towards one side far away from the pull rod 3, and the lifting motion of the lifting platform 2 is matched, so that the descending of the lifting platform 2 is completed, the operation is simple, and the practicability is high.
The foregoing description is only of the preferred embodiments of the present invention, and it should be understood that the described embodiments are only a few, and not all, of the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a steady lifting trolley of structure which characterized in that includes:
a base body (1);
the lifting platform (2) is arranged above the base body (1);
one end of the pull rod (3) is rotatably arranged on the seat body (1);
one end of the first connecting rod (4) is hinged with the middle part of the pull rod (3), and the other end of the first connecting rod (4) is rotatably connected with the lifting platform (2);
the number of the second connecting rods (5) is multiple, and one end of each second connecting rod (5) is rotatably connected with the lifting platform (2);
the number of the rotating rods (6) is multiple, two ends of each rotating rod (6) are rotatably arranged on the seat body (1), and the other end of the second connecting rod (5) is rotatably arranged on the seat body (1) or the rotating rods (6);
the control device is connected with the rotating rod (6) and controls the rotating rod (6) to rotate;
the limiting rod (7) is arranged on the seat body (1), is positioned on one side, close to the pull rod (3), of the second connecting rod (5), and limits the rotating angle of the second connecting rod (5);
the supporting plate (8) is located below the lifting platform (2), one end of the supporting plate (8) is fixedly arranged on the rotating rod (6), and the other end of the supporting plate is used for supporting the lifting platform (2).
2. A structurally sound lift trolley according to claim 1, characterized in that said seat (1) comprises:
the frame body (11), pull rod (3) with frame body (11) rotate to be connected, bull stick (6) set up in frame body (11), and both ends rotate to be set up on frame body (11), have seted up mounting groove (12) around the outer wall of frame body (11).
3. A lifting trolley with a stable structure as claimed in claim 2, characterized in that the turning rod (6) is rotatably arranged on the frame (11) through a transmission device (9).
4. A structurally sound lift trolley according to claim 3, characterized in that said transmission means (9) comprise:
a plurality of gears (91), wherein the gears (91) are sleeved at the end part of the rotating rod (6) respectively so as to drive the rotating rod (6) to rotate, and are rotatably arranged in the mounting groove (12);
the rack (92), the rack (92) is arranged in the mounting groove (12) in a sliding mode, and the rack (92) is meshed with the gear (91);
the adjusting device (93), the adjusting device (93) drives the rack (92) to slide;
the control device is connected with the adjusting device and controls the adjusting device to enable the adjusting device to drive the rack (92) to slide.
5. A structurally sound lift trolley according to claim 4, characterized in that said adjustment means (93) comprise:
a connecting plate (931) vertically connected to one end of the rack (92);
the screw rod (932) is rotatably arranged on the frame body (11), and the connecting plate (931) is movably arranged on the screw rod (932) through threads;
the adjusting handle (933) is arranged at one end of the screw rod (932), and drives the screw rod (932) to rotate;
the control device is connected with the adjusting handle (933) so as to control the movement of the adjusting handle (933).
6. A lifting trolley with stable structure as claimed in claim 5, characterized in that the gear (91) is disposed at both ends of the rotating rod (6), the number of the racks (92) is two, the racks (92) are disposed in the mounting grooves (12) at two opposite sides of the frame body (11) respectively and are engaged with the gear (91) at both ends of the rotating rod (6), and one end of each of the two racks (92) is perpendicularly connected with both ends of the connecting plate (931) respectively.
7. A lifting trolley with stable structure as claimed in claim 1, characterized in that the supporting plate (8) is a trapezoidal plate, the end of the supporting plate (8) far away from the turning bar (6) is provided with a supporting pad (10), the supporting pad (10) is strip-shaped, and the cross section of the supporting pad is semicircular.
8. The method of using a structurally stable lift car as set forth in claim 1, comprising:
firstly, when the lifting platform (2) is positioned at the bottommost part, the trolley is placed below goods to be moved;
operating the control device to enable the control device to drive the rotating rod (6) to rotate, drive the supporting plate (8) and the second connecting rod (5) to rotate upwards, enable the supporting plate (8) to prop against the lifting platform (2), and drive the lifting platform (2) to move upwards, so that the goods can be lifted;
when the second connecting rod (5) rotates to a vertical state, the second connecting rod is perpendicular to and in contact with the limiting rod (7), the limiting rod (7) limits the position of the second connecting rod (5), and the trolley is pulled to move;
fourthly, operating the control device to enable the control device to drive the rotating rod (6) to rotate in the opposite direction, driving the supporting plate (8) and the second connecting rod (5) to rotate downwards, and driving the goods to move downwards by the lifting platform (2) to lift the goods off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111594818.7A CN114435443A (en) | 2021-12-24 | 2021-12-24 | Lifting trolley with stable structure and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111594818.7A CN114435443A (en) | 2021-12-24 | 2021-12-24 | Lifting trolley with stable structure and use method |
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| CN114435443A true CN114435443A (en) | 2022-05-06 |
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| CN202111594818.7A Pending CN114435443A (en) | 2021-12-24 | 2021-12-24 | Lifting trolley with stable structure and use method |
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Cited By (1)
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| CN115416739A (en) * | 2022-09-29 | 2022-12-02 | 国网山东省电力公司宁阳县供电公司 | Electric power pipe construction material feeding unit |
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| CN111874062A (en) * | 2020-08-22 | 2020-11-03 | 泰州致诚硬质合金模具有限公司 | Carrying device for large-scale hard alloy die |
| CN213199829U (en) * | 2020-10-21 | 2021-05-14 | 广东岭南职业技术学院 | Shallow of going up and down fast |
| CN214084362U (en) * | 2020-11-03 | 2021-08-31 | 青岛丰光精密机械股份有限公司 | Transfer device is used in processing of shock absorber pressure cylinder for high-speed train |
| CN215097651U (en) * | 2020-11-16 | 2021-12-10 | 四川晶南物流有限责任公司 | Multifunctional carrier for goods import and export |
| CN112897412A (en) * | 2021-03-29 | 2021-06-04 | 温州职业技术学院 | Elevating platform with climbing assistance function |
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| CN115416739A (en) * | 2022-09-29 | 2022-12-02 | 国网山东省电力公司宁阳县供电公司 | Electric power pipe construction material feeding unit |
| CN115416739B (en) * | 2022-09-29 | 2023-12-01 | 国网山东省电力公司宁阳县供电公司 | Power tube construction material feeding unit |
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