CN210103326U - Special small crane for carrying test instrument - Google Patents
Special small crane for carrying test instrument Download PDFInfo
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- CN210103326U CN210103326U CN201920365064.XU CN201920365064U CN210103326U CN 210103326 U CN210103326 U CN 210103326U CN 201920365064 U CN201920365064 U CN 201920365064U CN 210103326 U CN210103326 U CN 210103326U
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- test instrument
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- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 230000008859 change Effects 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a special small crane for transporting test instruments, which relates to the technical field of equipment transporting equipment of an electric power system, and is provided with a supporting mechanism, a girder, a swing mechanism and a lifting mechanism; when in use, a heavy object needs to be lifted through the lifting mechanism; the rotation of the main beam is realized through the slewing mechanism, so that the rotation of equipment on the lifting hook is driven. The utility model has simple structure, convenient operation and convenient movement, and can safely and stably carry small and medium-sized equipment or instruments; when the crane is used, the utilization rate of a large crane is greatly reduced, the labor intensity of overhaul testing personnel is reduced, the working efficiency is improved, and potential safety hazards are eliminated.
Description
Technical Field
The utility model relates to an electric power system equipment haulage equipment technical field, concretely relates to special small-size crane of test instrument transport.
Background
The field carrying work of the electrical equipment or the test instrument is often required before the field equipment is put into operation and the overhaul test, the existing instrument has high integration level, the volume and the weight of the test instrument are large, the carrying is very inconvenient, and the overhaul and the test work are greatly examined. The special large crane is used for carrying large or heavy equipment or instruments, manual carrying or large crane carrying is needed when small equipment or instruments are carried in progress, the cost is high, the timeliness is seriously insufficient, the space of the large crane is limited due to the limitation of a test hall site, and the safety risk and the construction difficulty are increased. The method not only wastes human resources and material resources, but also generates a plurality of time-consuming links, and brings certain potential safety hazards.
The electric hydraulic crane has the advantages of being fast in moving, easy to control, capable of achieving hoisting at different positions and the like, is widely applied to the industrial field, is reasonably designed and calculated, and is very suitable for carrying goods in various operation sites. Therefore, small-sized test instruments and equipment are used as the entry points for transporting the small-sized test instruments, and the special transporting crane for the test instruments is developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at a special small-size crane of test instrument transport, it is convenient to remove, can carry out the transport of middle-size and small-size equipment or instrument.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the special small crane for transporting the test instrument comprises a supporting mechanism, a main beam, a swing mechanism and a lifting mechanism;
the supporting mechanism comprises a base, a telescopic bottom frame and supporting legs; the telescopic bottom frame is circumferentially and fixedly distributed on the circumferential outer side edge of the base, and the telescopic bodies on the telescopic bottom frame stretch along the radial direction of the base; the axial upper parts of the support legs are connected with the outer side of the telescopic body to realize the support of the telescopic body in the height direction;
the main beam is arranged on the base and is coaxially and rotatably connected with the base;
the slewing mechanism comprises a rotating motor, a chain and a speed change gear box; a driving chain wheel on a rotating output shaft of the rotating motor is in meshing transmission with a driven chain wheel on an input shaft of the speed change gear box through a chain; an output chain wheel on an output shaft of the speed change gear box is in meshing transmission with a fixed chain wheel on the main beam through a chain, so that the main beam is driven to rotate through the transmission of the rotating motor and the speed change gear box;
the lifting mechanism comprises a winch, a hydraulic cylinder, a lifting arm and a lifting hook; the winch is arranged on the main beam; the lower end of the lifting arm is rotatably connected with the top end of the main beam; the lower end of the hydraulic cylinder is fixedly arranged on the connecting seat of the main beam through a strut, and the upper piston body of the hydraulic cylinder is connected with the upper part of the lifting arm, so that the lifting arm is pushed; and the outer end of the winding steel wire rope of the winch is sequentially wound from the outer side of the lower end of the lifting arm and extends downwards from the upper end to be fixedly connected with the lifting hook.
Furthermore, the supporting mechanism is also provided with a steering wheel and a directional wheel; the steering wheel and the directional wheel are arranged at the bottom of the telescopic bottom frame.
Furthermore, a limit nut is connected to the support stud of the support leg through a thread; the limiting nut is abutted against the lower end face of the telescopic body, so that the telescopic body is supported.
Further, the swing mechanism further comprises a swing controller; the convolution controller is connected with the rotating motor.
Further, the lifting mechanism further comprises a lifting controller and a pulley; the lifting controller is connected with a lifting motor; and the end parts of the winding steel wire ropes are wound on pulleys at the lower end and the upper end of the lifting arm.
Furthermore, an upper piston body of the hydraulic cylinder is in rotating connection with the lifting arm through a pin shaft; the hydraulic cylinder is arranged on the inner sides of the main beam and the lifting arm, so that the lifting angle of the lifting arm is adjusted.
Further, the lift arms include a front lift arm and a rear lift arm; the front lifting arm is embedded on the rear lifting arm to form a sleeve structure; and the rear lifting arm is provided with a positioning bolt for fixing the position of the front lifting arm.
Furthermore, the lifting hook is also provided with an anti-tripping device; the anti-tripping device comprises a closing plate and a torsion spring, one end of the closing plate is rotatably connected with the tail part of the lifting hook through a rotating shaft, and the other end of the closing plate is abutted against the inner side wall of the head part of the lifting hook; the torsional spring cover is established in the pivot, just the torque arm of torsional spring respectively with the inside wall butt of lifting hook and closing plate realizes the closing plate with the elasticity butt of lifting hook realizes the automatic re-setting of closing plate simultaneously.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses simple structure, it is convenient to remove, can carry out the transport of middle-size and small-size equipment or instrument.
2. When the utility model is used, the heavy object needs to be lifted by the lifting mechanism; the rotation of the main beam is realized through the slewing mechanism, so that the rotation of equipment on the lifting hook is driven.
3. The utility model discloses when using, the large-scale crane rate of utilization that significantly reduces, reduces maintenance testing personnel's intensity of labour, improves work efficiency, eliminates the potential safety hazard.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
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 schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a swing mechanism of the present invention;
FIG. 3 is a schematic view of the stand bar structure of the present invention;
fig. 4 is a schematic view of the meshing transmission structure of the chain of the present invention;
the reference numbers in the figures illustrate:
1. a support mechanism; 11. a base; 111. a chassis; 12. a telescopic bottom frame; 121. a telescopic body; 13. a support leg; 14. a steering wheel; 15. a directional wheel; 2. a main beam; 21. fixing the chain wheel; 22. a connecting seat; 3. a swing mechanism; 31. rotating the motor; 311. a drive sprocket; 32. a chain; 33. a change speed gear box; 34. a swing controller; 331. a driven sprocket; 332. an output sprocket; 4. a lifting mechanism; 41. a winch; 42. a hydraulic cylinder; 43. a lift arm; 44. a hook; 45. winding a steel wire rope; 46. a hoisting controller; 47. a pulley; 48. a pillar; 5. the puck pin is rotated.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are 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 further explained with reference to the accompanying drawings 1 to 4:
with reference to fig. 1, 3 and 4, the special small crane for transporting test instruments comprises a supporting mechanism 1, a main beam 2, a swing mechanism 3 and a lifting mechanism 4;
the supporting mechanism 1 comprises a base 11, a telescopic bottom frame 12 and a support leg 13; the telescopic bottom frame 12 is circumferentially and fixedly distributed on the circumferential outer side of the base 11 in an array manner, and the telescopic body 121 on the telescopic bottom frame 12 is telescopic along the radial direction of the base 11; the upper part of the supporting leg 13 in the axial direction is connected with the outer side of the telescopic body 121 to support the telescopic body 121 in the height direction;
the main beam 2 is arranged on the base 11 and is coaxially and rotatably connected with the base 11;
the swing mechanism 3 comprises a rotating motor 31, a chain 32 and a speed change gear box 33; the driving chain wheel 311 on the rotating output shaft of the rotating motor 31 is meshed with the driven chain wheel 331 on the input shaft of the speed changing gear box 33 through the chain 32 for transmission; an output chain wheel 332 on the output shaft of the speed change gear box 33 is in meshing transmission with a fixed chain wheel 21 on the main beam 2 through a chain 32, so that the main beam 2 is driven to rotate through the transmission of the rotating motor 31 and the speed change gear box 33;
the lifting mechanism 4 comprises a winch 41, a hydraulic cylinder 42, a lifting arm 43 and a lifting hook 44; the winch 41 is arranged on the main beam 2; the lower end of the lifting arm 43 is rotatably connected with the top end of the main beam 2; the lower end of the hydraulic cylinder 42 is fixedly arranged on the connecting seat 22 of the main beam 2 through a strut 48, and the upper piston body of the hydraulic cylinder 42 is rotatably connected with the upper part of the lifting arm 43, so that the inclined lifting of the lifting arm 43 is realized; the outer end of the winding wire rope 45 of the winch 41 is sequentially wound from the outer side of the lower end of the lifting arm 43, and extends downwards from the upper end to be fixedly connected with the lifting hook 44.
Preferably, a rotary positioning disc pin 5 is further arranged; the rotary positioning disc pin 5 is arranged at the back of the connecting seat 22; the rotating positioning disk pin 5 is arranged on the connecting seat 22 of the main beam 2 in a penetrating mode, the head end of the rotating positioning disk pin 5 is arranged corresponding to the main beam 2, the rotating positioning disk pin 5 is locked and loosened to rotate on the main beam 2 in a tight jacking mode through rotating the axial head end of the rotating positioning disk pin 5 and the distance between the main beam 2, and the main beam 2 of a small crane is prevented from rotating randomly during hoisting.
Preferably, the supporting mechanism 1 is further provided with a steering wheel 14 and a directional wheel 15; the steering wheel 14 and the directional wheel 15 are arranged at the bottom of the telescopic base frame 12; the bottom of the telescopic bottom frame 12 is respectively provided with two steering wheels 14 and a directional wheel 15; the steering wheel 14 and the directional wheel 15 are respectively arranged on two sides, and are similar to a four-wheel structure of an automobile, two front wheels are used for steering, two rear wheels are used for directional rotation, so that the moving direction of the whole device is controlled, and the movement is more convenient and faster.
Preferably, five support legs 13 are respectively connected to the telescopic bottom frame 12 in series, and a limit nut is further connected to a support stud of each support leg 13 in a threaded manner; the limit nut is abutted against the lower end face of the telescopic body 121, so that the telescopic body 121 is supported; when carrying heavy objects and translating or hoisting, the telescopic bottom frame 12 is of a telescopic structure and can adjust the length at any time so as to lower the center of the whole device and reduce the risk of dumping.
The connecting seat 22 is sleeved on the main beam 2; the lower end of the connecting seat 22 is abutted against the upper end face of the fixed chain wheel 21; the connecting seat 22 is welded with the main beam 2, and the chassis 111 on the base 11 is reinforced by reinforcing ribs. The lower end of the main beam 2 is also rotatably connected with the chassis 111 through a deep groove ball bearing.
Preferably, with reference to fig. 2, the swing mechanism 3 further includes a swing controller 34; the rotary controller 34 is connected with the rotating motor 31, and the forward and reverse rotation and the rotating speed of the rotating output shaft of the rotating motor 31 are realized through the rotary controller 34; the rotating motor 31 is fixed on the connecting seat 22 by adopting a fixing bolt, and the forward and reverse rotation and stop of the rotating motor can be remotely controlled by signal wireless transmission within a certain distance by matching with the rotating controller 34 of the current 40A and a wireless remote control device. The rotary controller 34 is internally provided with an interlocking and unlocking function change-over switch which can switch the working mode. When the rotary motor rotates, the rotating torque is hinged to the driven chain wheel 331 of the speed change gear box 33 through the chain 32, the power output after speed change drives and transmits the electric torque to the output chain wheel 332 through the internal gear of the speed change gear box 33, and the chain 32 is driven to rotate to control the rotation of the rotating disc, so that the rotation of the crane main beam 2 and the connecting seat 22 is realized.
Preferably, the lifting mechanism 4 further comprises a lifting controller 46 and a pulley 47; the hoisting motor and the hoisting wheel on the hoisting machine 41 are of an integrated structure and are connected with each other through a rotating shaft. When the hoisting motor is installed, the winding steel wire rope 45 is approximately vertical, and the principle that the turning radius is small and the occupied space is small is adopted as far as possible. The lifting controller 46 is connected with a lifting motor, an output shaft of the lifting motor is connected with a winding wheel, and a winding steel wire rope 45 is wound on the winding wheel; the lifting hook 44 is also provided with an anti-tripping device to prevent the heavy object from tripping when the crane rotates or translates; the end of the winding wire rope 45 is wound on pulleys 47 at the lower end and the upper end of the lifting arm 43, and the winding wire rope 45 and the lifting hook 44 work back and forth by the driving of the winding wheel.
Preferably, the upper piston body of the hydraulic cylinder 42 is rotatably connected with the lifting arm 43 through a pin shaft; the hydraulic cylinder 42 is provided inside the main beam 2 and the lift arm 43, thereby adjusting the lift angle of the lift arm 43.
Preferably, the lifting arm 43 is of a telescopic construction; comprises a front lifting arm and a rear lifting arm; the front lifting arm is embedded on the rear lifting arm to form a sleeve structure; the rear lifting arm is provided with a positioning bolt for fixing the position of the front lifting arm, and the relative position of the front lifting arm and the rear lifting arm extending out of the front lifting arm can be manually adjusted by adjusting the positioning bolt.
Preferably, the anti-tripping device comprises a closing plate and a torsion spring, one end of the closing plate is rotatably connected with the tail part of the lifting hook 44 through a rotating shaft, and the other end of the closing plate is abutted against the inner side wall of the head part of the lifting hook 44; the torsional spring cover is established in the pivot, just the torque arm of torsional spring respectively with the inside wall butt of lifting hook 44 and closing plate realizes the closing plate with the elasticity butt of lifting hook 44 realizes the automatic re-setting of closing plate simultaneously, can effectively prevent the unhook to what more firm colludes hangs the article of waiting to lift by crane.
When the utility model is used, if the heavy object needs to be lifted, the crane is only needed to be pushed to a proper position, the storage battery is connected with the lifting controller, and the lifting and stopping of the heavy object can be controlled by controlling the lifting remote controller; if need the translation when hoisting the heavy object, only need flexible underframe to stretch out, prop up the landing leg, connect the battery wiring with the controller that circles round, can turn round the direction and stop of motor through wireless remote control, rotate at will when for the girder hoist and mount that prevents the little crane, can screw the rotating positioning dish round pin to the transport heavy object of safety and stability.
The utility model has the advantages of simple structure, convenient operation and convenient movement, and can safely and stably carry small and medium-sized equipment or instruments; meanwhile, the utilization rate of a large crane is reduced, the labor intensity of overhaul testing personnel is reduced, the working efficiency is improved, and potential safety hazards are eliminated; the device has the advantages of simple structure, convenient installation and operation, repeated utilization, economy, practicality, convenient transportation and management, flexible use, reasonable design, compact structure and suitability for wide popularization.
It should be noted that the detailed description of the present invention is not included in the prior art, or can be obtained directly from the market, and those skilled in the art can obtain the detailed description without creative efforts, and the detailed connection method has a very wide application in the field or daily life, and is not described in detail herein.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (8)
1. Special small-size crane of test instrument transport, its characterized in that: comprises a supporting mechanism (1), a main beam (2), a swing mechanism (3) and a lifting mechanism (4);
the supporting mechanism (1) comprises a base (11), a telescopic bottom frame (12) and supporting legs (13); the telescopic bottom frame (12) is circumferentially and fixedly distributed on the circumferential outer side of the base (11) in an array manner, and a telescopic body (121) on the telescopic bottom frame (12) is telescopic along the radial direction of the base (11); the axial upper part of the supporting leg (13) is connected with the outer side of the telescopic body (121) to realize the support of the telescopic body (121) in the height direction;
the main beam (2) is arranged on the base (11) and is coaxially and rotatably connected with the base (11);
the swing mechanism (3) comprises a rotating motor (31), a chain (32) and a speed change gear box (33); a driving chain wheel (311) on a rotating output shaft of the rotating motor (31) is in meshing transmission with a driven chain wheel (331) on an input shaft of the speed change gear box (33) through a chain (32); an output chain wheel (332) on an output shaft of the speed change gear box (33) is in meshing transmission with a fixed chain wheel (21) on the main beam (2) through a chain (32), so that the main beam (2) is driven to rotate through the transmission of the rotating motor (31) and the speed change gear box (33);
the lifting mechanism (4) comprises a winch (41), a hydraulic cylinder (42), a lifting arm (43) and a lifting hook (44); the winch (41) is arranged on the main beam (2); the lower end of the lifting arm (43) is rotatably connected with the top end of the main beam (2); the lower end of the hydraulic cylinder (42) is fixedly arranged on the connecting seat (22) of the main beam (2) through a strut (48), and the upper piston body of the hydraulic cylinder (42) is connected with the upper part of the lifting arm (43), so that the lifting arm (43) is pushed; the outer end of a winding steel wire rope (45) of the winch (41) is sequentially wound from the outer side of the lower end of the lifting arm (43), extends downwards from the upper end and is fixedly connected with the lifting hook (44).
2. The small crane for test instrument handling as set forth in claim 1, wherein: the supporting mechanism (1) is also provided with a steering wheel (14) and a directional wheel (15); the steering wheel (14) and the directional wheel (15) are arranged at the bottom of the telescopic bottom frame (12).
3. The small crane for test instrument handling as set forth in claim 1, wherein: a limit nut is further connected to the support stud of the support leg (13) in a threaded manner; the limiting nut is abutted against the lower end face of the telescopic body (121), so that the telescopic body (121) is supported.
4. The small crane for test instrument handling as set forth in claim 1, wherein: the swing mechanism (3) further comprises a swing controller (34); the rotary controller (34) is connected with the rotating motor (31).
5. The small crane for test instrument handling as set forth in claim 1, wherein: the lifting mechanism (4) further comprises a lifting controller (46) and a pulley (47); the lifting controller (46) is connected with a lifting motor; the end parts of the winding steel wire ropes (45) are wound on pulleys (47) at the lower end and the upper end of the lifting arm (43).
6. The small crane for test instrument handling as set forth in claim 1, wherein: the upper piston body of the hydraulic cylinder (42) is rotatably connected with the lifting arm (43) through a pin shaft; the hydraulic cylinder (42) is arranged on the inner sides of the main beam (2) and the lifting arm (43) so as to adjust the lifting angle of the lifting arm (43).
7. The small crane for test instrument handling as set forth in claim 1, wherein: the lifting arm (43) comprises a front lifting arm and a rear lifting arm; the front lifting arm is embedded on the rear lifting arm to form a sleeve structure; and the rear lifting arm is provided with a positioning bolt for fixing the position of the front lifting arm.
8. The small crane for test instrument handling as set forth in claim 1, wherein: the lifting hook (44) is also provided with an anti-tripping device; the anti-tripping device comprises a closing plate and a torsion spring, one end of the closing plate is rotatably connected with the tail part of the lifting hook (44) through a rotating shaft, and the other end of the closing plate is abutted against the inner side wall of the head part of the lifting hook (44); the torsional spring cover is established in the pivot, just the torque arm of torsional spring respectively with the inside wall butt of lifting hook (44) and closing plate, realize the closing plate with the elasticity butt of lifting hook (44), realize the automatic re-setting of closing plate simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920365064.XU CN210103326U (en) | 2019-03-21 | 2019-03-21 | Special small crane for carrying test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920365064.XU CN210103326U (en) | 2019-03-21 | 2019-03-21 | Special small crane for carrying test instrument |
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| CN210103326U true CN210103326U (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920365064.XU Expired - Fee Related CN210103326U (en) | 2019-03-21 | 2019-03-21 | Special small crane for carrying test instrument |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112125163A (en) * | 2020-09-10 | 2020-12-25 | 中邦汇泽园林环境建设有限公司 | Supplementary device of building stones |
| CN112499538A (en) * | 2021-02-08 | 2021-03-16 | 山东广域科技有限责任公司 | Manned lifting platform for operation and maintenance of transformer substation |
| CN112661026A (en) * | 2020-12-23 | 2021-04-16 | 蒋彩霞 | High hoisting apparatus for construction of security |
| CN115626561A (en) * | 2022-12-22 | 2023-01-20 | 江苏朗恩机械制造有限公司 | Supporting leg box structure of crane |
-
2019
- 2019-03-21 CN CN201920365064.XU patent/CN210103326U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112125163A (en) * | 2020-09-10 | 2020-12-25 | 中邦汇泽园林环境建设有限公司 | Supplementary device of building stones |
| CN112661026A (en) * | 2020-12-23 | 2021-04-16 | 蒋彩霞 | High hoisting apparatus for construction of security |
| CN112499538A (en) * | 2021-02-08 | 2021-03-16 | 山东广域科技有限责任公司 | Manned lifting platform for operation and maintenance of transformer substation |
| CN115626561A (en) * | 2022-12-22 | 2023-01-20 | 江苏朗恩机械制造有限公司 | Supporting leg box structure of crane |
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| CF01 | Termination of patent right due to non-payment of annual fee |