CN118004887A - Conical pipe fitting lifting appliance - Google Patents
Conical pipe fitting lifting appliance Download PDFInfo
- Publication number
- CN118004887A CN118004887A CN202410406270.6A CN202410406270A CN118004887A CN 118004887 A CN118004887 A CN 118004887A CN 202410406270 A CN202410406270 A CN 202410406270A CN 118004887 A CN118004887 A CN 118004887A
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- disc
- pull rod
- inner supporting
- connecting disc
- supporting plate
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- 238000003466 welding Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000005484 gravity Effects 0.000 description 4
- 239000004429 Calibre Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The application provides a conical pipe fitting lifting appliance, which belongs to the technical field of lifting appliances for lifting pipes, and comprises: the connecting disc is provided with at least three lower support arms, the lower ends of the lower support arms are hinged with swing rods, and the front ends of the swing rods are hinged with pressing blocks. The pull rod vertically passes through the middle part of the connecting disc, and the pull rod is provided with a disc and a positioning disc from bottom to top. The sliding frame is sleeved on the upper section of the pull rod, a pressure spring is arranged between the lower part of the sliding frame and the upper part of the positioning disc, a cantilever corresponding to the swing rod is circumferentially arranged on the sliding frame, and the tail end of the cantilever is connected with the rear end of the swing rod through a inhaul cable. The inner supporting plate is arranged between the lower supporting arm and the pull rod, the upper end of the inner supporting plate is hinged to the connecting disc, the hinge axes of the inner supporting plate, the pressing block and the swinging rod are all perpendicular to the shaft of the connecting disc, and the distance between the hinge axis of the inner supporting plate and the shaft of the pull rod is smaller than the radius of the disc. According to the scheme, the lifting device can directly lift the conical tube from the top end of the conical tube, the purpose of automatic unlocking can be easily achieved, and the operation is simpler and safer.
Description
Technical Field
The invention belongs to the technical field of lifting appliances for lifting pipes, and particularly relates to a conical pipe fitting lifting appliance.
Background
The current common high-voltage wire pole is usually formed by welding a plurality of sections of conical pipe fittings. Firstly, prefabricating a conical pipe with a proper length in a factory so as to facilitate road transportation; and then when the conical pipe is transported to an installation site, firstly fixing a section of conical pipe fitting with the largest diameter at the lower end on the ground, then transferring the conical pipe fitting above to the position above the conical pipe fitting at the lowest end in a vertical state by using hoisting equipment, and connecting the upper section of conical pipe fitting and the lower section of conical pipe fitting in a welding mode.
The patent of application number 201620523850.4 discloses a heavy-calibre pipeline vertical hoisting welded hoist, it includes lifts by crane wire rope, positioner, unloads gram, lifting hook, this hoist utilizes to lift by crane wire rope and puts positioner into the pipeline, utilize the hub connection mode of locating lever and location connecting piece, realize the regulation of locating lever angle, and the locating lever sets up on the cover tube group, can adjust the length of locating lever in order to adapt to the pipeline of different internal diameters in real time, the inclination, the axle center and the axis of pipeline are confirmed to length through the locating lever, realize waiting to weld quick alignment and the location between the pipeline, utilize the lifting hook fixed pipeline simultaneously, the fixed of the pipeline of being convenient for is not dislocation.
Although the above-mentioned scheme can effectively guarantee that the pipeline does not unhook, but the lifting hook that its set up can block in the welding process and locate between two upper and lower section pipelines, and it can lead to there is great welding seam between two section pipelines, is unfavorable for the welding to still need the manual work to ascend a height to the welding seam position after the pipeline welding and take off the couple, the operation is comparatively loaded down with trivial details.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the conical pipe fitting lifting appliance which can directly lift the conical pipe fitting from the top end of the conical pipe, effectively prevents a larger interval from being formed between two sections of conical pipes, can easily realize the purpose of automatic unlocking, and is simpler and safer to operate.
In order to achieve the object of the invention, the following scheme is adopted:
a tapered pipe hanger comprising: connecting disc, pull rod, carriage and inner supporting plate.
The circumference array of the connecting disc is provided with at least three lower support arms which are downwards arranged, the lower ends of the lower support arms are hinged with swing rods, and the front ends of the swing rods are hinged with pressing blocks.
The pull rod passes the middle part of connection pad perpendicularly, and the lower extreme coaxial of pull rod is equipped with the disc, and the disc is located the below of connection pad, and the upper end of pull rod is used for connecting hoisting equipment, and the pull rod is equipped with the positioning disk, and the positioning disk is located the connection pad top.
The sliding frame is sleeved on the upper section of the pull rod, a pressure spring is arranged between the lower part of the sliding frame and the upper part of the positioning disc, cantilevers corresponding to the swing rods one by one are circumferentially arranged on the sliding frame, the tail ends of the cantilevers are connected with the rear ends of the swing rods through inhaul cables, the inhaul cables are positioned on the outer side of the lower support arm, and the rear ends of the swing rods are lower than the front ends.
The number of the inner supporting plates is consistent with that of the lower supporting arms, the inner supporting plates are arranged between the lower supporting arms and the pull rods in a one-to-one correspondence manner, the upper ends of the inner supporting plates are hinged to the connecting disc, the hinging axes of the inner supporting plates, the pressing blocks and the swinging rods are parallel to each other and are perpendicular to the shaft of the connecting disc, and the distance between the hinging axis of the inner supporting plates on the connecting disc and the shaft of the pull rods is smaller than the radius of the disc.
The invention has the beneficial effects that: the conical pipe can be directly hoisted from the top end of the conical pipe, a hook is not required to be arranged between two connected conical pipes, and a large welding seam is effectively prevented from being formed between the two conical pipes; when the lifting appliance is unlocked, the lifting appliance can realize automatic unlocking under the action of gravity, the aim of automatic unlocking can be easily realized, the operation is simpler and safer, and the inner supporting plate can be effectively prevented from contacting the inner wall of the conical pipe again in the process of separating from the conical pipe; through setting up slider and expansion spring, not only make interior fagging can satisfy the requirement of automatic unblock, still make interior fagging can adapt to the conical tube of different conicity.
Drawings
The drawings described herein are for illustration of selected embodiments only and not all possible implementations, and are not intended to limit the scope of the invention.
Fig. 1 shows a schematic overall structure of the present application.
Fig. 2 shows a schematic bottom view of the overall structure of the present application.
Fig. 3 is a schematic view showing a state where the inner stay and the disk are inserted into the tapered tube.
Fig. 4 is a schematic view showing a state where the inner stay plate and the pressing block lock the tapered tube.
Fig. 5 shows a schematic diagram of the state at the time of unlocking.
The marks in the figure: the device comprises a connecting disc-1, a lower support arm-11, a sliding block-12, a telescopic spring-13, a swinging rod-2, a pressing block-21, a pull rod-3, a disc-31, an annular groove-311, a positioning disc-32, a pressure spring-33, a limit spring-34, a sliding frame-4, a cantilever-41, a stay rope-42, an inner supporting plate-5 and a convex strip-51.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, but the described embodiments of the present invention are some, but not all embodiments of the present invention.
As shown in fig. 1 and 2, a conical pipe hanger comprises: the connecting disc 1, the pull rod 3, the sliding frame 4 and the inner supporting plate 5.
The circumference array of the connecting disc 1 is provided with at least three lower support arms 11 which are downwards arranged, the lower ends of the lower support arms 11 are hinged with swinging rods 2, the connecting disc 1 is of a disc structure in the embodiment, the lower support arms 11 are of an L-shaped structure, the connecting disc comprises a transverse section and a vertical section, the tail ends of the transverse section are connected with the connecting disc 1 by welding, the swinging rods 2 are hinged with the lower ends of the vertical sections of the lower support arms 11, and pressing blocks 21 are hinged with the front ends of the swinging rods 2.
The pull rod 3 passes the middle part of connection pad 1 perpendicularly, and the lower extreme coaxial of pull rod 3 is equipped with disc 31, and disc 31 is located the below of connection pad 1, and the upper end of pull rod 3 is used for connecting lifting device, and pull rod 3 coaxial is equipped with positioning disk 32, and positioning disk 32 is located connection pad 1 top.
The carriage 4 is sleeved on the upper section of the pull rod 3, a pressure spring 33 is arranged between the lower part of the carriage 4 and the upper part of the positioning disk 32, cantilevers 41 corresponding to the swing rods 2 one by one are circumferentially arranged on the carriage 4, the tail ends of the cantilevers 41 are connected with the rear ends of the swing rods 2 through stay ropes 42, the stay ropes 42 are positioned on the outer sides of the lower support arms 11, the rear ends of the swing rods 2 are lower than the front ends, the swing rods 2 achieve various modes, the distance between the rear ends of the swing rods 2 and the hinge axes is greater than the distance between the front ends of the swing rods 2 and the hinge axes, and balancing weights can be arranged at the rear ends of the swing rods 2.
The number of the inner supporting plates 5 is consistent with that of the lower supporting arms 11, the inner supporting plates 5 are arranged between the lower supporting arms 11 and the pull rods 3 in a one-to-one correspondence mode, and the upper ends of the inner supporting plates 5 are hinged to the connecting disc 1. The hinging axes of the inner supporting plate 5, the pressing block 21 and the swinging rod 2 are mutually parallel and are perpendicular to the shaft of the connecting disc 1, and the distance between the hinging axis of the inner supporting plate 5 on the connecting disc 1 and the axis of the pull rod 3 is smaller than the radius of the disc 31.
The specific hoisting principle of the hoisting tool is as follows:
As shown in fig. 1 and 3, when the tie rod 3 is at the initial position, the lower edge of the inner supporting plate 5 contacts with the outer wall of the disc 31, and the circular contour formed by the lower ends of the inner supporting plates 5 circumferentially arranged at this time is of a structure with the smallest diameter when connecting the conical tube, and the diameter of the circular contour is smaller than the inner diameter of the connecting end of the conical tube and the lifting appliance, so that the inner supporting plate 5 and the disc 31 are conveniently inserted into the conical tube, and the end of the conical tube connected with the lifting appliance is usually the small end of the conical tube, because the final electric pole is of a structure with the small upper end and the large lower end.
The conical tube is connected, the disc 31 and the inner supporting plate 5 are simultaneously inserted into the conical tube to a predetermined depth, and as an optimal connection state, the inner supporting plate 5 needs to be inserted into the conical tube as much as possible to increase the contact range between the inner supporting plate 5 and the conical tube, increase the friction force and the clamping force, and make the conical tube still have a certain distance from the connecting disc 1 so as to realize automatic unhooking.
Locking the conical tube, as shown in fig. 4, pulling the pull rod 3 to move the disc 31 towards the connecting disc 1, so that the inner supporting plate 5 is outwards supported by the disc 31, and the supported inner supporting plate 5 is contacted with the inner wall of the conical tube through the outer wall, so that the inner supporting plate 5 is tightly propped in the conical tube; the pull rod 3 moves while pressing the pressure spring 33 through the positioning disc 32, the pressure spring 33 drives the sliding frame 4 to move towards the upper end of the pull rod 3, the sliding frame 4 drives the rear end of the swing rod 2 to swing upwards through the cantilever 41 and the inhaul cable 42, the front end of the swing rod 2 drives the pressing block 21 to press the outer wall of the conical tube, inward and downward pressure is applied to the conical tube through the pressing block 21, so that the conical tube is attached to the outer wall of the inner supporting plate 5 more stably, looseness between the conical tube and the inner supporting plate 5 is prevented, and the conical tube is locked through an inner top and outer pressing mode; in the process, the conical tube is horizontally arranged or vertically arranged, and the inner supporting plate 5 can tightly jack the conical tube only by keeping the relative position between the connecting disc 1 and the conical tube fixed when the pull rod 3 is pulled; the lifting operation can be carried out after the locking of the conical tube, and in the lifting and welding process, the conical tube and the pull rod 3 always keep a coaxial state because the inner supporting plate 5 and the conical tube are equivalent to a conical connecting structure, and the lifting equipment is connected with the lifting appliance through the upper end of the pull rod 3, so that the lifted conical tube is automatically in a vertical state, and is convenient to align with the conical tube below.
The lifting appliance is dismantled, as shown in fig. 5, after the conical pipe is welded, the lifting equipment is used for unloading the pulling force on the lifting appliance, and the lifting appliance automatically falls under the action of gravity; in the falling process of the lifting appliance, the connecting disc 1 is supported on the top of the conical tube, the pull rod 3 is continuously fallen until the lower end of the inner supporting plate 5 is separated from the outer wall of the disc 31, after the inner supporting plate 5 loses the support of the disc 31, the inner supporting plate 5 is in a natural falling state under the action of gravity, and the distance between the hinging axis of the inner supporting plate 5 and the connecting disc 1 and the axis of the pull rod 3 is smaller than the radius of the disc 31, so that when the inner supporting plate 5 naturally falls, the lower end of the inner supporting plate 5 is positioned on the top surface of the disc 31; then lifting the lifting appliance upwards through lifting equipment, in the lifting process, the pull rod 3 moves upwards firstly, then the inner supporting plate 5 is jacked upwards by the disc 31, the inner supporting plate 5 is firmly pressed on the disc 31 by utilizing the gravity of the connecting disc 1, so that the outer swinging of the inner supporting plate 5 is avoided, the inner supporting plate 5 pushes the connecting disc 1 to lift, and the inner supporting plate 5 can be smoothly taken out from the conical tube due to the separation between the inner supporting plate 5 and the inner wall of the conical tube; further, since the distance between the tie rod 3 and the connection disc 1 is limited by the inner stay 5, the tie rod 3 cannot move upward with respect to the connection disc 1, and thus the slide frame 4 cannot be driven to move upward by the compression spring 33, and the pressure of the pressure block 21 to the tapered tube cannot be continuously generated, so that the pressure block 21 can be smoothly separated from the tapered tube, and on the other hand, since the outer wall of the tapered tube has a tapered structure, even if the pressure block 21 still maintains the pressing force, the pressure block 21 can be smoothly taken out to the upper end of the tapered tube after the axial pressing force generated by the inner stay 5 is lost.
Preferably, the distance between the lower end of the inner supporting plate 5 and the connecting disc 1 is greater than the distance between the lower end of the lower supporting arm 11 and the connecting disc 1, so that the position of the pressing block 21 for pressing the pipe fitting is within the length range of the inner supporting plate 5, and the inner supporting plate 5 and the pressing block 21 form a pressing structure which is oppositely arranged, so that the pressing effect is improved.
Preferably, as shown in fig. 2 and 5, the bottom of the connecting disc 1 moves along the connecting line direction corresponding to the lower support arm 11 to form a sliding block 12, the upper end of the inner support plate 5 is hinged to the bottom of the sliding block 12, a telescopic spring 13 is arranged between the sliding block 12 and the outer end of the corresponding lower support arm 11, and when the telescopic spring 13 is in a natural state, the distance between the hinge axis of the inner support plate 5 on the sliding block 12 and the axis of the pull rod 3 is smaller than the radius of the disc 31; through the arrangement of the structure, in the process of pushing the inner supporting plate 5 outwards by the disc 31, the outer wall of the inner supporting plate 5 is attached to the inner wall of the conical rod with different conicities by two automatic adjusting structures of the movement of the sliding block 12 and the swinging of the inner supporting plate 5 around the hinging axis, and in the process of taking a lifting appliance, the sliding block 12 is automatically moved towards the pull rod 3 by the elasticity of the telescopic spring 13 so as to reduce the distance between the inner supporting plate 5 and the pull rod 3, thereby being convenient for the inner supporting plate 5 to be automatically folded towards the pull rod 3; as a preferable structure, the bottom of the connecting disc 1 is provided with a chute corresponding to the moving track of the sliding block 12, and the top of the sliding block 12 is slidably arranged in the chute.
Preferably, as shown in fig. 1,3 and 4, a limit spring 34 is arranged between the positioning disc 32 and the connecting disc 1, and when the limit spring 34 is in a natural state, the lower end of the inner supporting plate 5 is in contact with the outer wall of the disc 31, so that the pull rod 3 is automatically positioned at the initial position.
Preferably, the limit spring 34 and the pressure spring 33 are both sleeved outside the pull rod 3.
Preferably, as shown in fig. 1 and 5, the top surface of the disc 31 is coaxially provided with an annular groove 311, and when the lifting appliance is taken out, the annular groove 311 is used for clamping the lower end of the inner supporting plate 5, so that the inner supporting plate 5 is fundamentally prevented from swinging outwards in the process of taking out the lifting appliance.
Preferably, as shown in fig. 1, two raised strips 51 are arranged on two sides of the outer surface of the inner supporting plate 5, and the two raised strips 51 can form two tight propping tracks between the inner supporting plate 5 and the inner wall of the conical tube, and can adapt to the conical tubes with different inner diameters. The outer walls of the raised strips 51 are provided with a plurality of wear-resistant strips along the length direction, and the wear-resistant strips are used for improving the friction force between the inner supporting plate 5 and the inner wall of the conical tube.
The foregoing description of the preferred embodiments of the invention is merely exemplary and is not intended to be exhaustive or limiting of the invention. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
Claims (7)
1. A conical pipe hanger, comprising:
The connecting disc (1) is provided with at least three downward lower support arms (11) in a circumferential array, the lower ends of the lower support arms (11) are hinged with swing rods (2), and the front ends of the swing rods (2) are hinged with pressing blocks (21);
The pull rod (3) vertically penetrates through the middle part of the connecting disc (1), the lower end of the pull rod (3) is coaxially provided with a disc (31), the disc (31) is positioned below the connecting disc (1), the upper end of the pull rod (3) is used for connecting hoisting equipment, the pull rod (3) is provided with a positioning disc (32), and the positioning disc (32) is positioned above the connecting disc (1);
The sliding frame (4) is sleeved on the upper section of the pull rod (3), a pressure spring (33) is arranged between the lower part of the sliding frame (4) and the upper part of the positioning disc (32), cantilevers (41) corresponding to the swinging rods (2) one by one are arranged on the sliding frame (4) along the circumference, the tail ends of the cantilevers (41) are connected with the rear ends of the swinging rods (2) through stay ropes (42), the stay ropes (42) are positioned on the outer side of the lower support arm (11), and the rear ends of the swinging rods (2) are lower than the front ends;
The number of the inner supporting plates (5) is consistent with that of the lower supporting arms (11), the inner supporting plates (5) are arranged between the lower supporting arms (11) and the pull rods (3) in a one-to-one correspondence mode, the upper ends of the inner supporting plates (5) are hinged to the connecting disc (1), the hinging axes of the inner supporting plates (5), the pressing blocks (21) and the swinging rods (2) are parallel to each other and are perpendicular to the shaft of the connecting disc (1), and the distance between the hinging axis of the inner supporting plates (5) on the connecting disc (1) and the shaft of the pull rods (3) is smaller than the radius of the disc (31).
2. A conical pipe hanger according to claim 1, characterized in that the distance between the lower end of the inner strut (5) and the connection disc (1) is greater than the distance between the lower end of the lower arm (11) and the connection disc (1).
3. The conical pipe fitting lifting appliance according to claim 1, wherein the bottom of the connecting disc (1) is provided with a sliding block (12) corresponding to the connecting line direction of the lower support arm (11), the upper end of the inner support plate (5) is hinged to the sliding block (12), a telescopic spring (13) is arranged between the sliding block (12) and the outer side end of the corresponding lower support arm (11), and when the telescopic spring (13) is in a natural state, the distance between the hinge axis of the inner support plate (5) on the sliding block (12) and the axis of the pull rod (3) is smaller than the radius of the disc (31).
4. The conical pipe fitting lifting appliance according to claim 1, wherein a limiting spring (34) is arranged between the positioning disc (32) and the connecting disc (1), and when the limiting spring (34) is in a natural state, the lower end of the inner supporting plate (5) is in contact with the outer wall of the disc (31).
5. A conical pipe fitting sling as defined in claim 1 or 4, characterised in that the top surface of the disc (31) is provided with an annular groove (311) coaxially, and that the annular groove (311) is adapted to engage the lower end of the inner strut (5) when the sling is removed.
6. A conical pipe hanger according to claim 1 or 4, characterized in that two ribs (51) are provided on both sides of the outer surface of the inner strut (5).
7. The conical pipe hanger according to claim 6, wherein the outer walls of the ribs (51) are each provided with a plurality of wear strips along the length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410406270.6A CN118004887B (en) | 2024-04-07 | 2024-04-07 | Conical pipe fitting lifting appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410406270.6A CN118004887B (en) | 2024-04-07 | 2024-04-07 | Conical pipe fitting lifting appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118004887A true CN118004887A (en) | 2024-05-10 |
| CN118004887B CN118004887B (en) | 2024-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410406270.6A Active CN118004887B (en) | 2024-04-07 | 2024-04-07 | Conical pipe fitting lifting appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118004887B (en) |
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| CN111847215A (en) * | 2020-08-03 | 2020-10-30 | 王广妍 | Clamping structure of hoisting machinery |
| CN113620161A (en) * | 2021-08-02 | 2021-11-09 | 上海菲切尔智能科技有限公司 | Inside and outside clamping turnover fixture for large-diameter pipe fitting |
| CN215479208U (en) * | 2021-08-09 | 2022-01-11 | 内蒙古黄河工程局股份有限公司 | Simple internal-supporting type hoisting tool |
| US20220242702A1 (en) * | 2019-07-04 | 2022-08-04 | Ihc Holland Ie B.V. | A lifting device and a method of lifting a tubular pile |
| CN217463446U (en) * | 2022-06-24 | 2022-09-20 | 湖北大河建设有限公司 | Guide head convenient for dragging and laying PE pipe |
| CN115215207A (en) * | 2022-08-11 | 2022-10-21 | 东营高沃橡胶科技有限公司 | Lifting device for package rubber slab |
| CN116177377A (en) * | 2023-04-23 | 2023-05-30 | 四川寇大香食品有限公司 | Argil jar hoist, turning device and transfer equipment |
| CN117800204A (en) * | 2024-01-16 | 2024-04-02 | 南京永庆机械制造有限公司 | Hoisting tool for machining wind power annular parts |
-
2024
- 2024-04-07 CN CN202410406270.6A patent/CN118004887B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4320915A (en) * | 1980-03-24 | 1982-03-23 | Varco International, Inc. | Internal elevator |
| CN205662227U (en) * | 2016-06-02 | 2016-10-26 | 无锡市工业设备安装有限公司 | Large diameter pipe vertical hoisting welded hoist |
| CN208454304U (en) * | 2018-05-28 | 2019-02-01 | 金凤凰控股集团有限公司 | A kind of dry-type transformer coil suspender |
| BE1026067B1 (en) * | 2018-07-26 | 2019-09-26 | DEME Offshore Holding N.V. | Coupling device for connection to an end of a tubular element for establishing the element |
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| US20220242702A1 (en) * | 2019-07-04 | 2022-08-04 | Ihc Holland Ie B.V. | A lifting device and a method of lifting a tubular pile |
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| CN113620161A (en) * | 2021-08-02 | 2021-11-09 | 上海菲切尔智能科技有限公司 | Inside and outside clamping turnover fixture for large-diameter pipe fitting |
| CN215479208U (en) * | 2021-08-09 | 2022-01-11 | 内蒙古黄河工程局股份有限公司 | Simple internal-supporting type hoisting tool |
| CN217463446U (en) * | 2022-06-24 | 2022-09-20 | 湖北大河建设有限公司 | Guide head convenient for dragging and laying PE pipe |
| CN115215207A (en) * | 2022-08-11 | 2022-10-21 | 东营高沃橡胶科技有限公司 | Lifting device for package rubber slab |
| CN116177377A (en) * | 2023-04-23 | 2023-05-30 | 四川寇大香食品有限公司 | Argil jar hoist, turning device and transfer equipment |
| CN117800204A (en) * | 2024-01-16 | 2024-04-02 | 南京永庆机械制造有限公司 | Hoisting tool for machining wind power annular parts |
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|---|---|
| CN118004887B (en) | 2024-05-31 |
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