Large-diameter pipeline hoisting device

Abstract

The utility model discloses a large-diameter pipeline hoisting device, which is clamped and embedded at two ends of a pipeline, and comprises two pairs of C-shaped hoisting clamps clamped and embedded at the upper edges of two ends of the pipeline, the lower arms of the hoisting clamps extend into the pipeline, the upper arms of the hoisting clamps are arranged on the pipeline, each pair of hoisting clamps is horizontally and symmetrically arranged, and the lower arms of the hoisting clamps are arranged on the pipeline. A hoop lifting ring is fixed on the upper arm of the lifting hoop; the pair of limiting beam frames are arranged at the two ends of the pipeline, and the pair of hoisting hoops is detachably connected with the limiting beam frame at the corresponding end; the pipeline hoisting device is suitable for hoisting work of pipeline structures of various conventional sizes, two firm hoisting points can be arranged at each end of a pipeline, and stability and safety of pipeline hoisting work are greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of building component lifting, and more specifically, to a large-diameter pipe lifting device. Background Art

[0002] With the continuous advancement of urbanization, various municipal pipeline projects are also being carried out continuously. The diameter and length of the pipes used are also gradually increasing. In conventional pipeline lifting operations, on-site construction workers often use a single or two chains or slings to wrap around the middle of the pipe, and then use a hook to hook the chain or sling to complete the lifting work. However, for large-diameter and long pipes, the single lifting point formed by tying the sling in the middle of the pipe is difficult to ensure the stability of the pipe during the lifting process. To ensure that the pipe does not slip from the sling during lifting and tilt due to the change of center of gravity, more lifting solutions currently use the method of setting lifting points at both ends of the pipe for lifting. One method is to clamp the edges of both sides of the pipe with C-shaped clamps, and then set hanging points on the clamps to complete the connection with the steel cable or sling. However, for large-diameter pipes, the lifting method of using a single clamp at each end is prone to the clamp slipping against the edge of the pipe during lifting, and the pipe is prone to rotation and tilting during lifting. This lifting solution has certain safety risks.

[0003] In order to solve the problem of difficulty in smoothly lifting large pipelines, the patent with authorization announcement number CN216377148U discloses a pipeline lifting device, which completes the lifting operation of the pipeline by setting two lifting groups with self-tightening function. However, when facing municipal pipelines with larger diameters, the size of the lifting group must also be increased, and the applicability is poor. The patent with authorization announcement number CN218841471U discloses a municipal pipeline lifting device, which realizes the smooth lifting of the pipeline through a connecting rod mechanism and two sets of lifting ring assemblies, reducing the risk of pipeline deflection. However, since the size of the lifting ring assembly in the scheme is fixed, this device can only lift pipelines of specific sizes, and its applicability is also poor. The above two technical solutions are only suitable for lifting pipelines of specific sizes or fixed size ranges. Therefore, there is an urgent need for a pipeline lifting device that can solve the problem of smooth lifting of pipelines of various sizes. Utility Model Content

[0004] One purpose of the present invention is to solve at least the above problems and provide a large-diameter pipeline hoisting device that can effectively solve the problem of stable hoisting of large-diameter pipelines.

[0005] In order to achieve these purposes and other advantages according to the utility model, a large-diameter pipe lifting device is provided, which is embedded in the two ends of the pipe, including: two pairs of lifting clamps embedded in the upper edges of the two ends of the pipe, the lifting clamps are C-shaped, the lower arms of the lifting clamps extend into the pipe and the upper arms abut against the pipe, each pair of lifting clamps are horizontally symmetrically arranged, and a clamp lifting ring is fixed on the upper arm of the lifting clamp; a pair of limiting beam frames are arranged at the two ends of the pipe, and a pair of lifting clamps are detachably connected to the limiting beam frames at the corresponding end; a main sling, each end of which is connected to two auxiliary slings, and the bottom ends of the auxiliary slings are connected to the clamp lifting ring.

[0006] Preferably, the limiting beam frame includes a first beam and a second beam of the same length and parallel to each other, and beam frame side columns are connected at both ends of the first beam and the second beam. A limiting cylinder parallel to the pipeline axis is fixed on the lifting clamp, and the limiting cylinder rolls between the first beam and the second beam and has a diameter equal to the distance between the first beam and the second beam. A limiting clamp extends outward from the end of the limiting cylinder extending out of the limiting beam frame, and its annular side wall touches the limiting beam frame.

[0007] Preferably, each beam frame side column is connected downwardly to an end shaft seat, and a forward and reverse threaded screw is connected to the bearing between the two end shaft seats, and the rod body is provided with two sections of threaded sleeves of the same size and different directions with the middle as the boundary. A pair of screw sliders are relatively sleeved on the forward and reverse threaded screws, and the upper parts of the screw sliders are in contact with the bottom surface of the second beam. When the forward and reverse threaded screws rotate, the pair of screw sliders move relative to or in opposite directions on the forward and reverse threaded screws. The second beam is provided with a strip-shaped through groove, and a limiting vertical plate is fixed on the top surface of the screw slider. The limiting cylinder of each lifting clamp is located between the nearest limiting vertical plate and the beam frame side column.

[0008] Preferably, a middle fixed block is provided in the middle of the strip-shaped through groove, and a middle fixed shaft seat is provided at the bottom thereof, which is connected to the middle bearing of the rod body of the positive and negative threaded rod.

[0009] Preferably, the screw slider is fixed with two limiting vertical plates, one side vertical surface of each limiting vertical plate is cut into the inner wall of the strip-shaped through groove on the adjacent side, and the top edge of the limiting vertical plate contacts the bottom edge of the first beam.

[0010] Preferably, the side of the limiting vertical plate close to the limiting cylinder is a beveled side.

[0011] Preferably, a rubber pad with an arc-shaped cross-section is fixed to the inner surface of the lifting clamp.

[0012] The utility model has at least the following beneficial effects:

[0013] First, the utility model provides two stable lifting points on both sides of the pipeline, avoiding the potential safety hazards of sliding and rotating when using a single lifting point on one side;

[0014] Second, the distance between the two hanging points on one side of the utility model can be adjusted, and is suitable for large-diameter pipes of various sizes.

[0015] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the use process of the utility model;

[0018] Figure 2 This is a side view of the use process of the utility model;

[0019] Figure 3 This is a schematic diagram of the lifting clamp of the utility model in its maximum and minimum states;

[0020] Figure 4 This is a schematic diagram of the utility model for lifting pipes of different diameters;

[0021] Figure 5 This is an overall schematic diagram of the limiting beam frame of the utility model;

[0022] Figure 6 This is a schematic diagram of the screw rod of the present utility model;

[0023] Figure 7 This is a schematic diagram of the lifting clamp of the utility model in use;

[0024] Figure 8 This is a schematic diagram of a lifting clamp of the present utility model.

[0025] Legend: 1-Pipeline, 2-Limiting Beam Frame, 200-Beam Frame Side Column, 201-First Crossbeam, 202-Second Crossbeam, 2020-Limiting Slot, 21-Positive and Negative Screw, 3-Lifting Clamp, 31-Limiting Cylinder, 311-Limiting Clamp, 32-Clamp Ring, 33-Clamp Rubber Layer, 4-Auxiliary Sling, 5-Main Sling, 6-Servo Motor, 60-End Shaft Seat, 600-Motor Support, 61-Screw Slider, 611-Limiting Vertical Plate, 62-Middle Fixed Shaft, 620-Middle Fixed Block DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0027] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0028] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the components are commercially available unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense. For example, they can be fixedly connected or set, or detachably connected or set, or connected or set as a whole. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The directions or positional relationships indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0029] like Figures 1 to 8 As shown, the technical solution of the present application provides a large-diameter pipe lifting device, which is embedded in the two ends of the pipe 1, including: two pairs of lifting clamps 3 embedded in the upper edges of the two ends of the pipe 1, the lifting clamps 3 are C-shaped, the lower arms of the lifting clamps 3 extend into the pipe 1 and the upper arms abut against the pipe 1, each pair of lifting clamps 3 are horizontally symmetrically arranged, and a clamp ring 32 is fixed on the upper arm of the lifting clamp 3; a pair of limiting beam frames 2, which are arranged at the two ends of the pipe 1, and a pair of lifting clamps 3 are detachably connected to the limiting beam frames 2 at the corresponding end; a main sling 5, each end of which is connected to two auxiliary slings 4, and the bottom ends of the auxiliary slings 4 are connected to the clamp ring 32.

[0030] In this technical solution, the main sling 5 and the auxiliary sling 4 are steel cables or straps of conventional size and easily available. The main sling 5 can also be replaced with rigid work equipment such as a rigid beam or frame. The main sling 5 and the auxiliary sling 4 are connected by conventional means such as hooks or rigging. The auxiliary sling 4 passes through the clamp ring 32 and is tied using conventional means such as rigging. The middle part of the main sling 5 is connected to the lifting equipment, and the main sling 5 drives the four auxiliary slings 4 to complete the lifting of the pipeline 1.

[0031] After the pipe 1 is lifted up, the cam 3 is tightened, and the cam 3 is tightened to the lifting position, so that the cam 3 is tightened. Figure 4 As shown in (a) to 4(c), a pair of lifting clamps 3 do not need to adjust the spacing. They can be locked onto the edge of the pipe 1 with the same wall thickness but different diameter by simply rotating them appropriately. When the pipe 1 is being lifted, they are locked with the edge of the pipe 1. During the lifting process of the pipe 1, there are always two stable lifting points at each end of the pipe 1, which is safer and more stable than the conventional lifting solution with only one lifting point at each end.

[0032] In another technical solution, the limiting beam frame 2 includes a first beam 201 and a second beam 202 of the same length and parallel to each other, and beam frame side columns 200 are connected at both ends of the first beam 201 and the second beam 202. A limiting cylinder 31 parallel to the axis of the pipeline 1 is fixed on the lifting clamp 3, and the limiting cylinder 31 rolls between the first beam 201 and the second beam 202 and has a diameter equal to the distance between the first beam 201 and the second beam 202. The limiting cylinder 31 extends outward from the end of the limiting beam frame 2, and a limiting snap ring 311 extends outward circumferentially, and its annular side wall contacts the limiting beam frame 2. Since the limiting cylinder 31 is circular and has a limiting snap ring 311, the limiting cylinder 31 cannot escape from the first beam 201 and the second beam. Between the beams 202, the lifting clamp 3 rotates freely with the limiting cylinder 31 as the axis, and is constrained by the limiting cylinder 31 to only perform linear motion. Before lifting the pipeline 1, the on-site construction personnel place the limiting beam frame 2 horizontally, move a pair of lifting clamps 3 horizontally to the appropriate position, rotate them and clamp them into the edge of the pipeline 1. At this time, the construction personnel can install steel vertical plates and other structures on the limiting beam frame 2 by bolts to limit the horizontal displacement of the limiting cylinder 31. During the lifting process, the lateral force of the lifting clamp 3 is transmitted to the limiting beam frame 2 through the fixing parts. The lifting clamp 3 is clamped by the inner wall of the pipeline 1 and the later added fixing parts, and since the two arms of the lifting clamp 3 are touched by the pipe wall during the lifting process of the pipeline 1, the lifting clamp 1 does not rotate.

[0033] In another technical solution, each beam frame side column 200 is connected downwardly to an end shaft seat 60, and a positive and negative threaded rod 21 is connected to the bearing between the two end shaft seats 60. The rod body is provided with two sections of threaded rods of the same size and different directions at the middle part. A pair of screw sliders 61 are relatively sleeved on the positive and negative threaded rods 21. The upper part of the screw slider 61 is in contact with the bottom surface of the second cross beam 202. When the positive and negative threaded rods 21 rotate, the pair of screw sliders 61 are relatively sleeved on the positive and negative threaded rods 21. For or against movement, the second crossbeam 202 is provided with a strip-shaped through groove 2020, the top surface of the screw slider 61 is fixed with a limit plate 611, and the limit cylinder 31 of each lifting clamp 3 is located between the nearest limit plate 611 and the beam frame side column 200. In this technical solution, the inner ring of the bearing structure in the end shaft seat 60 is connected to the end of the positive and negative threaded screw 21, and the screw slider 61 has a ball inside that can circulate along the thread of the positive and negative threaded screw 21. The middle part of the rod 21 is a non-threaded section, and the rods on both sides of the section are threaded with the same size but opposite directions. When the positive and negative threaded rods 21 rotate around the axis, the two parts of the threaded rods rotate in opposite directions, and the screw slider 61 is limited by the second crossbeam 202 and does not rotate. Therefore, when the positive and negative threaded rods 21 rotate, the pair of screw sliders 61 achieve the effect of relative or contradictory movement. When the limiting plate 611 contacts the limiting cylinder 31, the positive and negative threaded rods 2 1 stops rotating. At this time, since the lifting clamp 3 is stuck on the edge of the pipe 1 and the limiting cylinder 31 is stuck on the limiting vertical plate 611, the lifting clamp 3 will not be displaced during the lifting process of the pipe 1. The forward and reverse threaded rod 21 can be connected to a rotating handle outside the end shaft seat to manually rotate the forward and reverse threaded rod 21, or a motor support 600 is installed on the beam frame side column 200, and a servo motor 6 is installed on the motor support 600 to cooperate with the coupling to control the rotation of the forward and reverse threaded rod 21.

[0034] In another technical solution, a middle fixed block 620 is provided in the middle of the strip-shaped through groove 2020, and a middle fixed shaft seat 62 is provided at the bottom thereof, which is connected to the middle bearing of the forward and reverse screw rods 21. The middle part of the forward and reverse screw rods 21 is a non-threaded section, and the non-threaded section is located in the middle fixed shaft seat 62 to form a constraint, thereby avoiding large deformation of the forward and reverse screw rods 21 after being subjected to force.

[0035] In another technical solution, the screw slider 61 is fixed with two limiting vertical plates 611, and one side vertical surface of each limiting vertical plate 611 is cut into the inner wall of the strip-shaped through groove 2020 on the adjacent side. The top edge of the limiting vertical plate 611 contacts the bottom edge of the first crossbeam 201. The two limiting vertical plates 611 match and slide in the strip-shaped through groove 2020, which also plays a restraining and limiting role on the movement of the screw slider 61.

[0036] In another technical solution, the side of the limiting plate 611 close to the limiting cylinder 31 is a hypotenuse, and the limiting cylinder 31 is affected by the hypotenuse of the limiting plate 611. Part of the force applied by the limiting plate 611 is borne by the limiting beam frame 2, avoiding excessive force on the positive and negative screw rods 21.

[0037] In another technical solution, a rubber pad 33 with an arc-shaped cross-section is fixed to the inner surface of the lifting clamp 3 , so that the lifting clamp 3 can better adapt to and be embedded in the pipeline 1 .

[0038] The number of devices and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the large diameter pipe lifting device of the present invention are obvious to those skilled in the art.

[0039] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described here.

Claims

1. A large diameter pipe lifting device, which is embedded in both ends of the pipe (1), and is characterized by: include: Two pairs of lifting clamps (3) are embedded in the upper edges of both ends of the pipeline (1), the lifting clamps (3) are C-shaped, the lower arms of the lifting clamps (3) extend into the pipeline (1) and the upper arms abut against the pipeline (1), each pair of lifting clamps (3) are horizontally symmetrically arranged, and a clamp ring (32) is fixed on the upper arm of the lifting clamp (3); A pair of limiting beam frames (2) are arranged at both ends of the pipeline (1), and a pair of lifting clamps (3) are detachably connected to the limiting beam frames (2) at the corresponding ends; The main sling (5) is connected to two auxiliary slings (4) at each end, and the bottom ends of the auxiliary slings (4) are connected to the clamp ring (32).

2. The large diameter pipe hoisting device according to claim 1, characterized in that: The limiting beam frame (2) comprises a first beam (201) and a second beam (202) of the same length and parallel to each other. The two ends of the first beam (201) and the second beam (202) are connected to beam frame side columns (200). A limiting cylinder (31) parallel to the axis of the pipeline (1) is fixed on the lifting clamp (3). The limiting cylinder (31) rolls between the first beam (201) and the second beam (202) and has a diameter equal to the distance between the first beam (201) and the second beam (202). The limiting cylinder (31) extends outward from the end of the limiting beam frame (2) to form a limiting clamp ring (311), and its annular side wall contacts the limiting beam frame (2).

3. The large diameter pipe hoisting device according to claim 2, characterized in that: Each beam frame side column (200) is connected downwardly to an end shaft seat (60), and a positive and negative threaded rod (21) is connected to the bearing between the two end shaft seats (60), and the rod body is provided with two sections of threaded rods of the same size and different directions with the middle part as the boundary, and a pair of screw sliders (61) are relatively sleeved on the positive and negative threaded rods (21), and the upper part of the screw sliders (61) is in contact with the bottom surface of the second cross beam (202). When the positive and negative threaded rods (21) rotate, the pair of screw sliders (61) move relative to or in opposition on the positive and negative threaded rods (21), and the second cross beam (202) is provided with a strip-shaped through groove (2020). A limiting vertical plate (611) is fixed on the top surface of the screw slider (61), and the limiting cylinder (31) of each lifting clamp (3) is located between the nearest limiting vertical plate (611) and the beam frame side column (200).

4. The large diameter pipe hoisting device according to claim 3, characterized in that: A middle fixed block (620) is provided in the middle of the strip-shaped through groove (2020), and a middle fixed shaft seat (62) is provided at the bottom thereof, which is connected to the middle bearing of the rod body of the positive and negative threaded rod (21).

5. The large diameter pipeline hoisting device according to claim 4, characterized in that: The screw slider (61) is fixed with two limiting vertical plates (611), and one side vertical surface of each limiting vertical plate (611) is cut into the inner wall of the strip-shaped through groove (2020) on the adjacent side, and the top edge of the limiting vertical plate (611) contacts the bottom edge of the first crossbeam (201).

6. The large diameter pipeline hoisting device according to claim 5, characterized in that: The side of the limiting vertical plate (611) close to the limiting cylinder (31) is a hypotenuse.

7. The large diameter pipeline hoisting device according to claim 1, characterized in that: A rubber cushion layer (33) with an arc-shaped cross section is fixed to the inner surface of the lifting clamp (3).

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