CN114394537A - Pre-buried screen cabinet foundation construction device of transformer substation - Google Patents

Pre-buried screen cabinet foundation construction device of transformer substation Download PDF

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Publication number
CN114394537A
CN114394537A CN202111460860.XA CN202111460860A CN114394537A CN 114394537 A CN114394537 A CN 114394537A CN 202111460860 A CN202111460860 A CN 202111460860A CN 114394537 A CN114394537 A CN 114394537A
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CN
China
Prior art keywords
fixedly connected
bottom plate
plate
screen cabinet
construction device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202111460860.XA
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Chinese (zh)
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CN114394537B (en
Inventor
郭晓璐
刘江
滕超
李玉文
姚晓林
栾海青
姜晓阳
陈诚
刘阳
毕军超
刘东波
邹晓华
于津东
彭红
吕琛
郑军洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rongcheng Power Supply Co Of State Grid Shandong Electric Power Co
Original Assignee
Rongcheng Power Supply Co Of State Grid Shandong Electric Power Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Rongcheng Power Supply Co Of State Grid Shandong Electric Power Co filed Critical Rongcheng Power Supply Co Of State Grid Shandong Electric Power Co
Priority to CN202111460860.XA priority Critical patent/CN114394537B/en
Publication of CN114394537A publication Critical patent/CN114394537A/en
Application granted granted Critical
Publication of CN114394537B publication Critical patent/CN114394537B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/42Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/44Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
    • B66C1/445Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces motor actuated
    • B66C1/447Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces motor actuated by hydraulic or pneumatic motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details
    • B66C13/16Applications of indicating, registering, or weighing devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00Other constructional features or details
    • B66C13/18Control systems or devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62Constructional features or details

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

The invention belongs to the technical field of transformer substations, and particularly discloses a foundation construction device for a pre-buried screen cabinet of a transformer substation, which comprises a bottom plate, wherein the bottom of the bottom plate is provided with a moving module, one side of the bottom plate is provided with a lifting mechanism for driving a rotating bracket to move up and down, the rotating bracket is fixedly provided with a rotating bracket, the rotating bracket is rotatably provided with a winding drum, the winding drum is coaxially and fixedly connected with an output shaft of a winch, the winch is fixedly connected with the rotating bracket, the outer edge of the winding drum is provided with a wheel groove, a lifting rope is wound in the wheel groove, the end part of the lifting rope is fixedly connected with an end block, the end block is fixedly connected with the top of an installation frame, two sides of the bottom of the installation frame are respectively provided with a clamping mechanism, each clamping mechanism comprises a U-shaped clamping plate, the two clamping plates clamp a base from two sides, and the end surface of each clamping plate is vertically connected with a third hydraulic cylinder, the invention can conveniently hoist the base of the screen cabinet and improve the safety quality.

Description

Pre-buried screen cabinet foundation construction device of transformer substation
Technical Field
The invention belongs to the field of transformer substations, and particularly discloses a foundation construction device for a pre-buried screen cabinet of a transformer substation.
Background
The transformer substation needs to dig the foundation ditch earlier when pre-buried screen cabinet basis, later adds the concrete in the foundation ditch, later hoists the base of the screen cabinet after the concatenation to the top of concrete, and the horizontal installation of inconvenient assurance base when hoist among the prior art has increased the unqualified risk of installation, consequently needs to improve.
Disclosure of Invention
In view of the above, the technical problem to be solved by the present invention is to provide a foundation construction device for a pre-buried cubicle of a transformer substation, so as to solve the problems in the prior art.
In order to achieve the above purpose, the invention provides a transformer substation embedded screen cabinet foundation construction device, which comprises a bottom plate, wherein the bottom of the bottom plate is provided with a moving module, one side of the bottom plate is provided with a lifting mechanism for driving a rotating bracket to move up and down, the rotating bracket is fixedly provided with a rotating bracket, the rotating bracket is rotatably provided with a winding drum, the winding drum is coaxially and fixedly connected with an output shaft of a winch, the winch is fixedly connected with the rotating bracket, the outer edge of the winding drum is provided with a wheel groove, a lifting rope is wound in the wheel groove, the end part of the lifting rope is fixedly connected with an end block, the end block is fixedly connected with the top of an installation frame, two sides of the bottom of the installation frame are respectively provided with a clamping mechanism, each clamping mechanism comprises a U-shaped clamping plate, the two clamping plates clamp the base from two sides, and the end surface of each clamping plate is vertically connected with a third hydraulic cylinder, the third pneumatic cylinder fixed connection mounting bracket, the both sides of grip block are all fixed with the fourth pneumatic cylinder through the fixed plate, the upper and lower surface of fourth pneumatic cylinder perpendicular to grip block, the lower extreme of fourth pneumatic cylinder is fixed with the kicking block, be fixed with distance measuring sensor on the grip block of fixed plate one side, distance measuring sensor passes through signal line connection director, controller passes through signal line control fourth pneumatic cylinder, distance measuring sensor, level sensor and hoist engine, level sensor fixes at the mounting bracket.
In the above technical solution, preferably, the moving module includes a wheel rotatably mounted, a driving module for driving the wheel to rotate is disposed at the bottom of the bottom plate, and the driving module is connected to the controller through a wire.
In the above technical scheme, preferably, the lifting mechanism includes a mounting groove perpendicular to the base plate, the lower end of the mounting groove is fixedly connected with the base plate, a linear motor perpendicular to the base plate is fixed in the mounting groove, and a movable sliding block of the linear motor is fixedly connected with the rotating support.
In the above technical scheme, preferably, the middle part of mounting groove fixed connection stiffener's one end, the other end of stiffener is connected with the last fixed surface of bottom plate, the surface contained angle of stiffener and bottom plate is the acute angle.
In the above technical scheme, preferably, the two sides of the bottom plate are provided with auxiliary supporting mechanisms, each auxiliary supporting mechanism comprises a first hydraulic cylinder fixedly connected with a fixed block, the first hydraulic cylinders are parallel to the upper surface of the bottom plate, the end parts of the first hydraulic cylinders are fixedly connected with connecting blocks, the connecting blocks are fixedly connected with second hydraulic cylinders, the second hydraulic cylinders are perpendicular to the bottom plate, and the lower ends of the second hydraulic cylinders are fixedly provided with supporting blocks.
In the above technical scheme, preferably, the top block is spherical, and the top block is connected with the end of the fourth hydraulic cylinder in an inserting manner.
In the above technical solution, preferably, the controller is connected to a power supply through a wire, the power supply is a storage battery, the power supply and the controller are arranged in an installation box, and the installation box is fixed to one side of the upper portion of the bottom plate, which is far away from the installation groove.
In the above technical scheme, preferably, the bottom of the clamping plate is fixedly connected with a base plate, and the base plate abuts against the bottom surface of the base.
Compared with the prior art, the invention has the following beneficial effects: the lifting device is characterized in that the bottom of the bottom plate is provided with a moving module which can conveniently move the lifting device, so that the position is adjusted, the height of the rotating support can be adjusted by arranging a lifting mechanism, the winding drum can be rotated by a winch, a lifting rope can be wound and unwound, the height of the mounting frame can be adjusted by the lifting rope, the base can be clamped from two sides by a clamping plate arranged on the mounting frame, the base can be hoisted by the mounting frame, the levelness of the base can be conveniently adjusted by matching a fourth hydraulic cylinder arranged on the clamping plate with a level sensor, the base is supported by a temporary fixing structure after adjustment is finished, the mounting frame is removed, and concrete is filled in to fix the base.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of another embodiment of the present invention;
FIG. 4 is a schematic view of the structure at B in FIG. 3;
FIG. 5 is a schematic view of the present invention at the mount;
fig. 6 is a block diagram of a system related to a controller of the present invention.
In the figure: the device comprises a bottom plate 1, a moving module 2, a mounting frame 3, a clamping plate 4, a base 5, a winding drum 6, a winch 7, a lifting seat 8, a linear motor 9, a mounting groove 10, a reinforcing rod 11, a mounting box 12, a first hydraulic cylinder 13, a supporting block 14, a connecting block 15, a second hydraulic cylinder 16, a fixed block 17, a rotating support 18, a lifting rope 19, a level sensor 20, an end block 21, a third hydraulic cylinder 22, a distance measuring sensor 23, a top block 24, a fourth hydraulic cylinder 25, a fixed plate 26 and a base plate 27.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1-6, the foundation construction device for the embedded screen cabinet of the transformer substation comprises a bottom plate 1, wherein a moving module 2 is arranged at the bottom of the bottom plate 1, the moving module 2 comprises wheels rotatably mounted, a driving module for driving the wheels to rotate is arranged at the bottom of the bottom plate 1, and the driving module is connected with a controller through a wire. The moving module is used for moving the bottom plate 1, so that the construction device is conveniently moved.
One side of bottom plate 1 is equipped with the elevating system that the drive rotates support 18 and reciprocate, and elevating system includes the mounting groove 10 of perpendicular to bottom plate 1, the lower extreme fixed connection bottom plate 1 of mounting groove 10, and the mounting groove 10 internal fixation has the linear electric motor 9 of perpendicular to bottom plate 1, and linear electric motor 9's movable sliding block fixed connection rotates support 18. The rotating support 18 is fixed with the rotating support 18, the winding drum 6 is rotatably mounted on the rotating support 18, the winding drum 6 is coaxially and fixedly connected with an output shaft of the winding engine 7, the winding engine 7 is fixedly connected with the rotating support 18, a wheel groove is formed in the outer edge of the winding drum 6, a lifting rope 19 is wound in the wheel groove, the end portion of the lifting rope 19 is fixedly connected with the end block 21, and the end block 21 is fixedly connected with the top of the mounting frame 3. The vertical height of the rotating support 18 can be adjusted through the lifting mechanism, so that the lifting is convenient, the winch 7 can drive the winding drum 6 to rotate, the lifting rope 19 can be conveniently wound and unwound through the rotation of the winding drum 6, and the height of the mounting frame 3 can be controlled through the winding and unwinding of the lifting rope 19.
The bottom both sides of mounting bracket 3 all are equipped with fixture, fixture includes grip block 4 of U-shaped, base 5 is cliied from both sides to two grip blocks 4, the terminal surface of grip block 4 is connected with third pneumatic cylinder 22 perpendicularly, third pneumatic cylinder 22 fixed connection mounting bracket 3, the both sides of grip block 4 are all fixed with fourth pneumatic cylinder 25 through fixed plate 26, fourth pneumatic cylinder 25 perpendicular to grip block 4's upper and lower surface, the lower extreme of fourth pneumatic cylinder 25 is fixed with kicking block 24, be fixed with range sensor 23 on the grip block 4 of fixed plate 26 one side, range sensor 23 passes through signal line connection director, controller passing signal line control fourth pneumatic cylinder 25, range sensor 23, level sensor 20 and hoist engine 7, level sensor 20 is fixed at mounting bracket 3. Can follow both sides through the cooperation of two fixture and carry out the centre gripping to base 5 fixed, can control the distance between two grip blocks 4 through fourth pneumatic cylinder 25, realize the centre gripping to base 5 and loosen, through the flexible of fourth pneumatic cylinder 25, make kicking block 24 support the concrete surface, thereby adjust mounting bracket 3's levelness, can measure the distance between 5 each angles of base and the concrete top through range sensor 23, make things convenient for the thickness of later stage adjustment concrete. After the adjustment is finished, the base 5 is supported through the temporary fixing structure, the mounting frame 3 is removed, and concrete is filled into the base 5 to fix the base.
The middle part of mounting groove 10 is fixed connection stiffener 11's one end, and the other end of stiffener 11 is connected with the last fixed surface of bottom plate 1, and the surface contained angle of stiffener 11 and bottom plate 1 is the acute angle. The both sides of bottom plate 1 are equipped with auxiliary stay mechanism, and auxiliary stay mechanism includes first pneumatic cylinder 13 fixed connection fixed block 17, and first pneumatic cylinder 13 is parallel with the upper surface of bottom plate 1, the tip fixedly connected with connecting block 15 of first pneumatic cylinder 13, and connecting block 15 fixedly connected with second pneumatic cylinder 16, second pneumatic cylinder 16 perpendicular to bottom plate 1, and the lower extreme of second pneumatic cylinder 16 is fixed with supporting shoe 14. The reinforcing rod 11 is used for increasing the stability of the mounting groove 10, the stability of the construction device during hoisting can be increased through the auxiliary supporting mechanism, during construction, the first hydraulic cylinder 13 extends towards two sides, and the second hydraulic cylinder 16 extends downwards to enable the supporting block 14 to be in contact with the ground, so that the supporting area of the construction device can be increased, and the stability of the construction device during hoisting is improved.
The top block 24 is spherical, and the top block 24 is connected with the end part of the fourth hydraulic cylinder 25 in an inserting way. The controller is connected with a power supply through a lead, the power supply is a storage battery pack, the power supply and the controller are arranged in an installation box 12, and the installation box 12 is fixed on one side, far away from the installation groove 10, of the upper portion of the bottom plate 1. The bottom of the clamping plate 4 is fixedly connected with a backing plate 27, and the backing plate 27 is propped against the bottom surface of the base 5. The pad 27 is used to support the bottom surface of the base 5, thereby preventing the base 5 from slipping off.
In the present invention, the terms "mounting," "connecting," "fixing," and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the description herein, reference to the term "one embodiment," "some embodiments," "a specific embodiment," or the like, if any, means 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 do not necessarily 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.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The foundation construction device of the embedded screen cabinet of the transformer substation comprises a bottom plate (1) and is characterized in that a moving module (2) is arranged at the bottom of the bottom plate (1), a lifting mechanism for driving a rotating support (18) to move up and down is arranged on one side of the bottom plate (1), the rotating support (18) is fixed with the rotating support (18), a winding drum (6) is rotatably arranged on the rotating support (18), the winding drum (6) is coaxially and fixedly connected with an output shaft of a winch (7), the winch (7) is fixedly connected with the rotating support (18), a wheel groove is formed in the outer edge of the winding drum (6), a lifting rope (19) is wound in the wheel groove, the end part of the lifting rope (19) is fixedly connected with an end block (21), the end block (21) is fixedly connected with the top of an installation rack (3), and clamping mechanisms are arranged on two sides of the bottom of the installation rack (3), the clamping mechanism comprises U-shaped clamping plates (4), two clamping plates (4) clamp a base (5) from two sides, the end face of each clamping plate (4) is vertically connected with a third hydraulic cylinder (22), the third hydraulic cylinders (22) are fixedly connected with a mounting frame (3), the two sides of each clamping plate (4) are respectively fixed with a fourth hydraulic cylinder (25) through a fixing plate (26), the fourth hydraulic cylinders (25) are perpendicular to the upper surface and the lower surface of each clamping plate (4), the lower ends of the fourth hydraulic cylinders (25) are fixedly provided with a top block (24), a distance measuring sensor (23) is fixed on the clamping plate (4) on one side of each fixing plate (26), the distance measuring sensors (23) are connected with a controller through signal lines, and the controller controls the fourth hydraulic cylinders (25), the distance measuring sensors (23), a horizontal sensor (20) and a winch (7) through the signal lines, the level sensor (20) is fixed on the mounting frame (3).
2. The foundation construction device for the embedded screen cabinet of the transformer substation as claimed in claim 1, wherein the moving module (2) comprises wheels which are rotatably mounted, a driving module for driving the wheels to rotate is arranged at the bottom of the bottom plate (1), and the driving module is connected with the controller through a wire.
3. The foundation construction device for the embedded screen cabinet of the transformer substation according to claim 1, wherein the lifting mechanism comprises a mounting groove (10) perpendicular to the base plate (1), the lower end of the mounting groove (10) is fixedly connected with the base plate (1), a linear motor (9) perpendicular to the base plate (1) is fixed in the mounting groove (10), and a movable sliding block of the linear motor (9) is fixedly connected with a rotating support (18).
4. The foundation construction device for the embedded screen cabinet of the transformer substation according to claim 3, wherein the middle of the installation groove (10) is fixedly connected with one end of a reinforcing rod (11), the other end of the reinforcing rod (11) is fixedly connected with the upper surface of the bottom plate (1), and the included angle between the reinforcing rod (11) and the surface of the bottom plate (1) is an acute angle.
5. The construction device of the embedded screen cabinet foundation of transformer substation of claim 1, characterized in that, the both sides of bottom plate (1) are equipped with auxiliary stay mechanism, auxiliary stay mechanism includes first pneumatic cylinder (13) fixed connection fixed block (17), first pneumatic cylinder (13) is parallel with the upper surface of bottom plate (1), the tip fixedly connected with connecting block (15) of first pneumatic cylinder (13), connecting block (15) fixedly connected with second pneumatic cylinder (16), second pneumatic cylinder (16) perpendicular to bottom plate (1), the lower extreme of second pneumatic cylinder (16) is fixed with supporting shoe (14).
6. The foundation construction device for the embedded screen cabinet of the transformer substation as claimed in claim 1, wherein the top block (24) is spherical, and the top block (24) is connected with the end of the fourth hydraulic cylinder (25) in an inserting manner.
7. The transformer substation embedded screen cabinet foundation construction device according to claim 1, wherein the controller is connected with a power supply through a wire, the power supply is a storage battery pack, the power supply and the controller are arranged in an installation box (12), and the installation box (12) is fixed on one side, far away from the installation groove (10), of the upper portion of the bottom plate (1).
8. The foundation construction device for the embedded screen cabinet of the transformer substation as claimed in claim 1, wherein a base plate (27) is fixedly connected to the bottom of the clamping plate (4), and the base plate (27) abuts against the bottom surface of the base (5).
CN202111460860.XA 2021-12-02 2021-12-02 Base construction device for embedded screen cabinet of transformer substation Active CN114394537B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111460860.XA CN114394537B (en) 2021-12-02 2021-12-02 Base construction device for embedded screen cabinet of transformer substation

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Application Number Priority Date Filing Date Title
CN202111460860.XA CN114394537B (en) 2021-12-02 2021-12-02 Base construction device for embedded screen cabinet of transformer substation

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CN114394537A true CN114394537A (en) 2022-04-26
CN114394537B CN114394537B (en) 2023-05-23

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109761160A (en) * 2019-03-12 2019-05-17 国家电网有限公司 A kind of power screen cabinet moving apparatus
CN211470697U (en) * 2020-01-12 2020-09-11 广州逸璇科技有限公司 Landscape construction elevating platform
CN112265919A (en) * 2020-10-31 2021-01-26 上海广大基础工程有限公司 Self-balancing static drilling root planting pile hoisting threading device and construction method thereof
CN113247778A (en) * 2021-05-13 2021-08-13 山西省工业设备安装集团有限公司 Quick hoist device of water-cooled wall for boiler construction
CN113445610A (en) * 2021-08-05 2021-09-28 广东中都建筑集团有限公司 Integrated rapid refitting construction device for road overhaul inspection well and construction method thereof
CN214570118U (en) * 2021-09-22 2021-11-02 河南豫中起重集团有限公司 Positioning system of container spreader

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109761160A (en) * 2019-03-12 2019-05-17 国家电网有限公司 A kind of power screen cabinet moving apparatus
CN211470697U (en) * 2020-01-12 2020-09-11 广州逸璇科技有限公司 Landscape construction elevating platform
CN112265919A (en) * 2020-10-31 2021-01-26 上海广大基础工程有限公司 Self-balancing static drilling root planting pile hoisting threading device and construction method thereof
CN113247778A (en) * 2021-05-13 2021-08-13 山西省工业设备安装集团有限公司 Quick hoist device of water-cooled wall for boiler construction
CN113445610A (en) * 2021-08-05 2021-09-28 广东中都建筑集团有限公司 Integrated rapid refitting construction device for road overhaul inspection well and construction method thereof
CN214570118U (en) * 2021-09-22 2021-11-02 河南豫中起重集团有限公司 Positioning system of container spreader

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