A hoisting and installation device for drainage pipes

Abstract

The present invention discloses a hoisting and installation device for drainage pipes, belonging to the technical field of drainage pipe installation equipment, which includes two clamping parts for symmetrically clamping and fixing elbows; an adjusting arm for connecting the two clamping parts, and the adjusting arm is used to adjust the included angle between the central axes of the two clamping parts; a lifting arm is arranged on each clamping part, a lifting ring is slidably arranged on the lifting arm, and an adjusting lifting ring is arranged at one end of the lifting arm close to the clamping part; the two clamping parts are fixed on the elbow, the two lifting arms are along the outer side of the elbow and the cross-sectional plane where the intersection point of the two lifting arms is located at the center of the elbow, the two lifting arms are located in the longitudinal section plane where the center of the elbow is located, and the lifting ring is located at the intersection point of the two lifting arms; during hoisting, a double-hook crane is adopted, one of the two hooks of the crane is connected to the lifting ring, and the other is connected to one of the adjusting lifting rings. The invention solves the problem in the prior art that the elbow cannot be stably hoisted at a set angle.

Description

Technical Field

[0001] The present invention belongs to the technical field of drainage pipe installation equipment, and particularly relates to a drainage pipe hoisting and installation device. Background Art

[0002] The use of bridge pipes for drainage pipes is a flexible and efficient solution, especially suitable for scenarios with complex terrain, ecological sensitivity, or limited underground space. Its core advantages lie in convenient construction and simple maintenance. However, due to the need to bypass obstacles or to match undulating terrain, multiple elbow parts will be designed. In the prior art, when installing elbows, a hoisting method is adopted, and soft slings or nylon slings are used to wrap around the elbows. Generally, lifting points are set at both ends or symmetric positions of the elbows. When installing the elbows, the planes where the outer arc and the inner arc are located are generally perpendicular to the horizontal plane. However, when using soft slings or nylon slings to wind and fix the elbows, since there will be slippage between the pipes and the soft slings and nylon slings, when it is necessary to make the inner contour of the elbow face downward, due to the influence of the center of gravity of the elbow, the outer contour of the elbow will deflect downward. Therefore, a stable angle or direction cannot be maintained during installation, increasing the installation and docking difficulty between the elbow and the straight pipe. Summary of the Invention

[0003] The purpose of the present invention is to provide a drainage pipe hoisting and installation device to solve the problem that when using soft slings or nylon slings to wind and hoist elbows in the prior art, the elbows cannot be hoisted at a stable angle due to the influence of the self-gravity of the elbows.

[0004] To achieve the above purpose, the present invention adopts the following technical scheme: A drainage pipe hoisting and installation device includes clamping parts. There are two clamping parts, and the two clamping parts are respectively clamped and fixed at both ends of the elbow. The two clamping parts are symmetrically arranged with respect to the middle cross-section of the elbow; an adjusting arm is provided between the two clamping parts, and the adjusting arm is used to adjust the included angle between the central axes of the two clamping parts; a lifting arm is provided on each clamping part, and the two lifting arms are stacked on top of each other front and back. A lifting ring is slidably arranged on the two lifting arms, and an adjusting lifting ring is arranged at one end of the lifting arm close to the clamping part; when the two clamping parts are fixed on the elbow, the two lifting arms are arranged along the outer side of the elbow, and the intersection point of the two lifting arms is located in the plane of the cross-section where the center of the elbow is located. The two lifting arms are located in the plane of the longitudinal section where the center of the elbow is located, and the lifting ring is located at the intersection point of the two lifting arms; during hoisting, a double-hook crane is used, and one of the two hooks of the crane is connected to the lifting ring, and the other is connected to one of the adjusting lifting rings.

[0005] As a further description of the above technical solution: The adjusting arm is composed of two connecting rods, and the two connecting rods are connected by a rotating shaft. One end of the connecting rod away from the rotating shaft is fixedly connected to the corresponding clamping part.

[0006] As a further description of the above technical solution: There are two adjusting arms, and the two adjusting arms are symmetrically arranged before and after the elbow pipe.

[0007] As a further description of the above technical solution: The clamping part includes a positioning arc plate, a clamping arc plate and a clamping component. There is one positioning arc plate and two clamping arc plates. The adjusting arm and the lifting arm are both arranged on the positioning arc plate. The two clamping arc plates are symmetrically arranged with respect to the positioning arc plate. The clamping arc plate is hinged to the positioning arc plate. When the clamping part clamps the elbow pipe, the two clamping arc plates and the positioning arc plate form a major arc. Along the radial direction of the positioning arc plate, at least one clamping component is arranged, and along the radial direction of the clamping arc plate, at least one clamping component is arranged. The clamping component includes a clamping plate, a sliding frame and a driving screw. The sliding frame slides on the clamping part. The clamping plate is fixedly connected to the sliding frame. The driving screw is in threaded cooperation with the clamping part. The distal end of the driving screw is rotatably connected to the clamping plate.

[0008] As a further description of the above technical solution: A limiting arc plate is arranged on the clamping part. A return torsion spring is arranged on the hinge shaft between the positioning arc plate and the clamping arc plate. The limiting arc plate is slidably arranged along the circumferential direction of the clamping arc plate. When the inner side surface of the limiting arc plate contacts the outer side surface of the positioning arc plate and the outer side surface of the clamping arc plate at the same time, the positioning arc plate and the clamping ring form a complete arc plate.

[0009] As a further description of the above technical solution: An adjusting component is arranged on the positioning arc plate. The adjusting component is used to adjust the sliding of the limiting arc plate. The adjusting component includes a sliding arc rod and a first spring. A sliding seat is arranged on the end face of the positioning arc plate. The sliding arc rod is slidably inserted through the sliding seat. One end of the sliding arc rod is fixedly connected to the limiting arc plate. The first spring is sleeved on the sliding arc rod. The first spring is located between the sliding seat and the limiting arc plate. The first spring is in a compressed state. A hanging ring is arranged at the end of the sliding arc rod away from the limiting arc plate.

[0010] As a further description of the above technical solution: The lifting arm is slidably arranged radially along the clamping part. An installation seat is arranged on the fixed arc plate. A slider is arranged at the end of the lifting arm. The slider is slidably arranged in the installation seat. A driving shaft is arranged in the installation seat. The driving shaft penetrates through the slider. A second spring is sleeved on the driving shaft. The second spring is located between the slider and the installation seat. A driving track groove is formed on the side surface of the driving shaft. An elastic shaft is arranged on the slider. The elastic shaft is adapted to the driving track groove. The driving track groove includes an annular groove, a straight groove, and a spiral groove. The annular groove is arranged along the circumferential direction of the driving shaft. The starting groove depth of the annular groove is greater than the ending groove depth thereof. The straight groove is arranged along the axial direction of the driving shaft. The starting point of the straight groove is communicated with the starting point of the annular groove. The starting point of the spiral groove is communicated with the ending point of the straight groove. The groove depth at the ending point of the straight groove is less than the groove depth at the starting point of the spiral groove. The ending point of the spiral groove is communicated with the ending point of the annular groove. The spiral angle of the spiral groove is 360 degrees. The groove depth at the ending point of the spiral groove is less than the groove depth at the ending point of the annular groove. A winding shaft is also rotatably arranged on the installation seat. The driving shaft is connected with the winding shaft through a gear set. The winding shaft is connected with the hanging ring through a steel wire rope.

[0011] As a further description of the above technical solution: A rubber anti-slip pad is arranged on the side surface of the clamping plate facing the elbow pipe. A scale is arranged on the sliding frame.

[0012] As a further description of the above technical solution: An angle sensor is arranged on the rotating shaft. The angle sensor is used to measure the included angle between the two connecting rods on the same lifting arm. A height sensor is arranged at a position where the lifting arm is close to the clamping part. A handheld terminal is also arranged. The height sensor, the angle sensor and the handheld terminal are connected through wireless Bluetooth.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0014] (1) The pipeline hoisting and installation device of the present application can stably clamp and fix a straight pipe or an elbow pipe, so that the pipeline will not slip or rotate. By using two hooks of a double-hook crane to be respectively connected with the lifting ring and the adjusting lifting ring, the angle of the straight pipe or the elbow pipe can be stably controlled, so as to meet the hoisting and installation requirements at different angles.

[0015] (2) With the assistance of the pipeline hoisting and installation device of the present application, after the hoisting of the pipeline is completed, the device can conveniently and quickly release the clamping of the pipeline, greatly improving the installation work efficiency.

[0016] (3) The installed height sensors, angle sensors, and mobile terminal can assist the operator to intelligently and visually monitor the status of the pipeline hoisting process in real time, and at the same time can guide the pipeline to reach the preset hoisting angle. When installing this device on the pipeline, the accuracy of the installation can be judged by comparing the value of the angle sensor with the bending angle of the elbow pipe. When lifting, when the values of the two height sensors are the same, it can be known that the elbow pipe is vertically bent downward. When the height difference between the two height sensors reaches the value corresponding to the pipeline inclination angle, it is known that the adjustment of the pipeline inclination angle is completed. When reaching the specified hoisting position, the value of the height sensor can be used to judge whether there is a docking error between the pipeline and the pipeline to be docked, improving the accuracy of pipeline hoisting, ensuring the accuracy of installation docking, and at the same time improving the efficiency of pipeline docking installation.

[0017] (4) When the central axes of the two clamping parts are coaxial, it can also clamp the straight pipeline. Therefore, the scope of application of this device is wide, and only this device can be used to realize the hoisting and installation of straight pipes and elbow pipes in the hoisting and installation of pipelines. Brief Description of the Drawings

[0018] Figure 1 It is a sectional view of the three-dimensional structure diagram of the elbow pipe mentioned in the present invention, which has a cutting plane A and a cutting plane B;

[0019] Figure 2 It is a three-dimensional structure diagram of the present invention;

[0020] Figure 3 It is a side view of the present invention;

[0021] Figure 4 It is a three-dimensional structure diagram of one clamping part of the present invention;

[0022] Figure 5 It is an exploded view of the components inside the mounting seat of the present invention;

[0023] Figure 6 It is another angle exploded view of the components inside the mounting seat of the present invention;

[0024] Figure 7 It is a circumferential plane development view of the drive shaft of the present invention;

[0025] Figure 8 It is a schematic diagram of the working state of the present invention;

[0026] Figure 9 It is a three-dimensional structure diagram of the working state of the present invention.

[0027] Legend Explanation: 1. Elbow pipe; 2. Hook; 3. Positioning arc plate; 4. Clamping arc plate; 5. Return torsion spring; 6. Clamping plate; 7. Sliding frame; 8. Driving screw; 9. Rubber anti-slip pad; 10. Limiting arc plate; 11. Sliding arc rod; 12. First spring; 13. Sliding seat; 14. Hanging ring; 15. Adjusting arm; 16. Connecting rod; 17. Lifting arm; 18. Lifting ring; 19. Adjusting lifting ring; 20. Mounting seat; 21. Slide block; 22. Driving shaft; 23. Elastic shaft; 24. Annular groove; 25. Linear groove; 26. Spiral groove; 27. Gear set; 28. Winding shaft; 29. Steel wire rope; 30. Angle sensor; 31. Height sensor. Detailed Implementation Manner

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] Please refer to Figures 1-9 , the present invention provides a technical solution for a drainage pipe hoisting and installation device:

[0030] A drainage pipe hoisting and installation device for hoisting an elbow pipe 1 at an angle, including a clamping part. There are two clamping parts, and the two clamping parts are symmetrically arranged with respect to the elbow pipe 1. The clamping part includes a positioning arc plate 3 made of steel plate and a clamping arc plate 4. There is one positioning arc plate 3 and two clamping arc plates 4. The two clamping arc plates 4 are symmetrically arranged with respect to the positioning arc plate 3. The clamping arc plate 4 is hinged to the positioning arc plate 3, and its hinge axis is parallel to the axis of the positioning arc plate 3. The hinge axis is located outside the positioning arc plate 3, and a return torsion spring 5 is sleeved on the hinge axis. Under the action of the return torsion spring 5, a complete arc plate is not formed between the positioning arc plate 3 and the clamping arc plate 4.

[0031] When the clamping part clamps the bent pipe 1, the two clamping arc plates 4 and the positioning arc plate 3 form a major arc. At this time, the restoring torque of the restoring torsion spring 5 increases. At least one clamping component is arranged on the positioning arc plate 3 along its radial direction. In this embodiment, two clamping components are arranged on each positioning arc plate 3, and the two clamping components are symmetrical about the positioning arc plate 3. At least one clamping component is arranged on the clamping arc plate 4 along its radial direction. In this embodiment, one clamping component is arranged on the clamping arc plate 4. The clamping component includes a clamping plate 6, a sliding frame 7 and a driving screw 8. The sliding frame 7 slides on the clamping part. A scale (not shown in the figure) is arranged on the sliding frame 7. The clamping plate 6 is fixedly connected with the sliding frame 7. The driving screw 8 is in threaded cooperation with the clamping part, and the distal end of the driving screw 8 is rotatably connected with the clamping plate 6. A rubber anti-slip pad 9 is arranged on the side surface of the clamping plate 6 facing the bent pipe 1.

[0032] According to the diameter of the bent pipe 1, by adjusting the driving screw 8, the position of the clamping plate 6 can be adjusted. Under the indication of the scale on the sliding frame 7, the position of the clamping plate 6 can be accurately adjusted, so as to ensure that the ring formed by multiple clamping plates 6 is adapted to the diameter of the bent pipe 1.

[0033] In order to enable the clamping arc plate 4 and the positioning arc plate 3 to form and maintain a major arc when clamping the bent pipe 1, a limiting arc plate 10 is arranged on the clamping part. The limiting arc plate 10 is slidably arranged along the circumferential direction of the clamping arc plate 4. The limiting arc plate 10 is arranged on the outer side surface of the positioning arc plate 3. When the inner side surface of the limiting arc plate 10 is in contact with the outer side surface of the positioning arc plate 3 and the outer side surface of the clamping arc plate 4 at the same time, the positioning arc plate 3 and the clamping ring form a complete arc plate. In this state, the restoring torsion spring 5 has a restoring torque, but under the action of the limiting arc plate 10, the clamping arc plate 4 cannot rotate. When the limiting arc plate 10 slides in the direction away from the clamping arc plate 4 and until it is not in contact with the clamping arc plate 4, under the action of the restoring torsion spring 5, the clamping arc plate 4 rotates in the direction away from the bent pipe 1. Therefore, the clamping component on the clamping arc plate 4 does not clamp the bent pipe 1.

[0034] In this embodiment, an adjusting component is further arranged on the positioning arc plate 3. The adjusting component is used to adjust the sliding of the limiting arc plate 10. The adjusting component includes a sliding arc rod 11 and a first spring 12. A sliding seat 13 is arranged on the end surface of the positioning arc plate 3. The sliding arc rod 11 slidably penetrates through the sliding seat 13. One end of the sliding arc rod 11 is fixedly connected with the limiting arc plate 10. The first spring 12 is sleeved on the sliding arc rod 11. The first spring 12 is located between the sliding seat 13 and the limiting arc plate 10. The first spring 12 is in a compressed state. A hanging ring 14 is arranged at the end of the sliding arc rod 11 away from the limiting arc plate 10.

[0035] The two clamping parts are connected by an adjusting arm 15, and the adjusting arm 15 is used to adjust the included angle between the central axes of the two clamping parts; in this embodiment, there are two adjusting arms 15, and the two adjusting arms 15 are symmetrically arranged before and after the bent pipe 1. The adjusting arm 15 is composed of two connecting rods 16, and the two connecting rods 16 are connected by a rotating shaft. The lengths of the two connecting rods 16 are equal. The connecting rod 16 is made of steel plate, and the end of the connecting rod 16 far from the rotating shaft is fixedly connected to the positioning arc plate 3.

[0036] A lifting arm 17 is further arranged on the clamping part. The lifting arm 17 is arranged along the axis direction of the positioning arc plate 3. A lifting ring 18 is slidably arranged on the lifting arm 17, and an adjusting lifting ring 19 is arranged at one end of the lifting arm 17 close to the clamping part. When the two clamping parts are fixed on the bent pipe 1, the two lifting arms 17 are arranged along the outer side of the bent pipe 1, and the intersection point of the two lifting arms 17 is located in the plane of the cross section where the center of the bent pipe 1 is located. The two lifting arms 17 are located in the plane of the longitudinal section where the center of the bent pipe 1 is located, and the lifting ring 18 is located at the intersection point of the two lifting arms 17; during lifting, a double-hook 2 crane is used. One of the two hooks 2 of the crane is connected to the lifting ring 18, and the other is connected to one of the adjusting lifting rings 19.

[0037] The lifting arm 17 is slidably arranged along the radial direction of the clamping part. An installation seat 20 is arranged on the positioning arc plate 3. A slider 21 is arranged at the end of the lifting arm 17. The slider 21 is slidably arranged in the installation seat 20. A driving shaft 22 is arranged in the installation seat 20. The driving shaft 22 passes through the slider 21. A second spring (not shown in the figure) is sleeved on the driving shaft 22. The second spring is located between the slider 21 and the installation seat 20. A driving track groove is formed on the side surface of the driving shaft 22. An elastic shaft 23 is arranged on the slider 21, and the elastic shaft 23 is adapted to the driving track groove. The driving track groove includes an annular groove 24, a straight groove 25, and a spiral groove 26. The annular groove 24 is arranged along the circumferential direction of the driving shaft 22. The starting groove depth of the annular groove 24 is greater than the ending groove depth thereof. The straight groove 25 is arranged along the axial direction of the driving shaft 22. The starting point of the straight groove 25 is communicated with the starting point of the annular groove 24. The starting point of the spiral groove 26 is communicated with the ending point of the straight groove 25. The ending groove depth of the straight groove 25 is less than the starting groove depth of the spiral groove 26. The ending point of the spiral groove 26 is communicated with the ending point of the annular groove 24. The spiral angle of the spiral groove 26 is 360 degrees. The ending groove depth of the spiral groove 26 is less than the ending groove depth of the annular groove 24. A winding shaft 28 is rotatably arranged on the installation seat 20. The driving shaft 22 is connected to the winding shaft 28 through a gear set 27. The winding shaft 28 is connected to the hanging ring 14 through a steel wire rope 29.

[0038] An angle sensor 30 is provided on the rotating shafts of the two connecting rods 16. The angle sensor 30 is used to measure the included angle between the two connecting rods 16 on the same lifting arm 17. A height sensor is provided at a position where each lifting arm 17 is close to the mounting base 20, and a handheld terminal (not shown in the figure) is also provided. The height sensor 31, the angle sensor 30 and the handheld terminal are connected by wireless Bluetooth. After the data of the height sensor 31 and the angle sensor 30 are transmitted to the handheld terminal, the corresponding data can be intuitively seen. It should be noted that a mobile power supply, a Bluetooth module for data transmission, and a controller are also provided; the mobile power supply powers the above sensors, Bluetooth module and controller, and the controller, sensor, and Bluetooth module are electrically connected. The controller is used to process the data of the sensor, and then the Bluetooth module transmits the data to the mobile terminal. The height sensor 31, angle sensor 30, Bluetooth module, and controller mentioned above are all prior arts.

[0039] In other embodiments, the height sensor 31, the angle sensor 30, the handheld terminal, the mobile power supply and the controller may not be provided. An angle ruler is used to replace the angle sensor 30, and the inclination angle of the bent pipe 1 is adjusted manually by visual inspection and then moved or installed in this state.

[0040] Based on this embodiment, the method and working principle for lifting the bent pipe 1: The bent pipe 1 is as Figure 1 shown, where the cross-sectional plane A is the cross-section at the center of the bent pipe 1, and the cross-sectional plane B is the longitudinal section at the center of the bent pipe 1.

[0041] Step 1: Install the hoisting and installation device of the present application on the bent pipe 1;

[0042] The specific process is as follows: The included angle between the central axes of the two clamping parts is pre-adjusted according to the bending angle of the bent pipe 1, and then each clamping component is adjusted according to the diameter of the bent pipe 1 so that the clamping plate 6 reaches the position of clamping the bent pipe 1. Then, the positioning arc plates 3 of the two clamping parts are placed on the bent pipe 1, and the two positioning arc plates 3 are moved so that the clamping plates 6 on the two positioning arc plates 3 are all adapted to the bent pipe 1. Then, each clamping arc plate 4 is rotated respectively so that the clamping arc plate 4 and the positioning arc plate 3 form a complete arc. During the rotation process, the clamping arc plate 4 first pushes the limiting arc plate 10 to slide until the clamping arc plate 4 contacts the positioning arc plate 3 and forms a complete arc plate. During this process, the first spring 12 continues to be compressed when the limiting arc plate 10 slides. When the clamping arc plate 4 contacts the positioning arc plate 3 and forms a complete arc plate, under the action of the first spring 12, the limiting arc plate 10 resets, and then the limiting arc plate 10 restricts the rotation of the clamping arc plate 4.

[0043] During the above process, it is possible to compare the value of the angle sensor 30 with the bending angle of the elbow pipe 1, so as to determine whether the hoisting and installation device of the present application is stably and correctly installed on the elbow pipe 1.

[0044] Step 2: Hang one hook 2 of the crane on the lifting ring 18, and the other hook 2 on the adjusting lifting ring 19, and then carry out hoisting.

[0045] During hoisting, first hoist the hook 2 connected to the lifting ring 18 until the elbow pipe 1 is completely suspended. Since the lifting ring 18 is located at the intersection of the two lifting arms 17, when the elbow pipe 1 is completely suspended, the inner side of the elbow pipe 1 is vertically downward. By observing the values of the two height sensors on the mobile terminal, it is possible to intuitively understand whether the elbow pipe 1 is vertically downward, and the values of the two height sensors should be the same. When installing this device on the pipeline, by comparing the value of the angle sensor with the bending angle of the elbow pipe, it is possible to determine whether the installation is accurate. During hoisting, when the values of the two height sensors are the same, it can be known that the elbow pipe is vertically bent downward. When the height difference between the two height sensors reaches the value corresponding to the inclination angle of the pipeline, it is known that the adjustment of the inclination angle of the pipeline is completed. When reaching the specified hoisting position, through the values of the height sensors, it is possible to judge whether there is a docking error between the pipeline and the pipeline to be docked, improve the accuracy of pipeline hoisting, ensure the accuracy of installation docking, and at the same time improve the efficiency of pipeline docking and installation.

[0046] During the above process, the slider 21 on the lifting arm 17 slides along the mounting seat 20, and the elastic shaft 23 on the slider 21 moves from the starting point of the annular groove 24 to the end point of the linear groove 25. Therefore, the drive shaft 22 does not rotate and the second spring is compressed.

[0047] Then hoist the hook 2 connected to the adjusting lifting ring 19 to adjust the state of the elbow pipe 1. In this embodiment, the elbow pipe 1 is adjusted to: one end is in a horizontal state and the other end is in an inclined state. By the included angle between the two lifting arms 17 and the values of the two height sensors, it is possible to know whether the elbow pipe 1 reaches the state of the installation position.

[0048] Step 3: Complete the installation and remove the hoisting and installation device of the present application; after hoisting the elbow pipe 1 to the designated position and connecting it to the pipeline at its installation position, then remove the hoisting and installation device of the present application. The specific process is as follows: First, lower the lifting hooks 2 simultaneously. Under the gravity of the lifting arm 17 and the action of the second spring, the slider 21 of the lifting arm 17 slides along the drive shaft 22. During the sliding process, the elastic shaft 23 moves from the spiral groove 26 to the annular groove 24. During this process, the drive shaft 22 rotates. Under the action of the gear set 27, the wire winding shaft 28 rotates, thereby winding the steel wire rope 29 around the wire winding shaft 28. Therefore, the sliding arc rod 11 pulls the limiting arc plate 10 to move. When the limiting arc plate 10 does not contact the clamping arc plate 4, under the action of the reset torsion spring 5 and the gravity of the clamping arc plate 4, the clamping arc plate 4 moves away from the elbow pipe 1, so that the clamping assembly on the clamping arc plate 4 does not clamp the elbow pipe 1. During this process, when the elastic shaft 23 moves from the end point of the spiral groove 26 to the end point of the annular groove 24, under the action of the first spring 12, the drive shaft 22 rotates in the reverse direction, so that the elastic shaft 23 returns to the starting position of the annular groove 24. At the same time, the limiting arc plate 10 is reset. Then hoist the lifting hook 2 upward, and the device of the present application can be removed from the elbow pipe 1.

[0049] As mentioned above, the above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art of this technology, within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, make equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A drainage pipe hoisting and installation device, characterized in that: The invention comprises a clamping part, wherein two clamping parts are provided, and the two clamping parts are respectively clamped and fixed at two ends of the curved pipe (1), and the two clamping parts are symmetrically arranged with respect to the middle cross section of the curved pipe (1); an adjusting arm (15) is provided between the two clamping parts, and the adjusting arm (15) is used to adjust the angle between the central axes of the two clamping parts; a lifting arm (17) is provided on each clamping part, and the two lifting arms (17) are stacked together front and back, and a lifting ring (18) is slidably provided on the two lifting arms (17), and an adjusting lifting ring is provided on one end of the lifting arm (17) close to the clamping part. ring (19); when the two clamping parts are fixed on the curved pipe (1), the two lifting arms (17) are arranged along the outer side of the curved pipe (1) and the intersection of the two lifting arms (17) is located on the plane where the cross section of the center of the curved pipe (1) is located, the two lifting arms (17) are located on the plane where the longitudinal section of the center of the curved pipe (1) is located, and the lifting ring (18) is located at the intersection of the two lifting arms (17); when lifting, a double-hook crane is used, one of the two hooks (2) of the crane is connected to the lifting ring (18), and the other is connected to one of the adjustment rings (19); The clamping part comprises a positioning arc plate (3), a clamping arc plate (4) and a clamping assembly, wherein one positioning arc plate (3) is provided, and two clamping arc plates (4) are provided, the adjusting arm (15) and the lifting arm (17) are both provided on the positioning arc plate (3), the two clamping arc plates (4) are symmetrically provided with respect to the positioning arc plate (3), the clamping arc plate (4) and the positioning arc plate (3) are hinged, and when the clamping part clamps the bent pipe (1), the two clamping arc plates (4) and the positioning arc plate (3) to form a superior arc, at least one clamping assembly is arranged on the positioning arc plate (3) along its radial direction, at least one clamping assembly is arranged on the clamping arc plate (4) along its radial direction, the clamping assembly comprises a clamping plate (6), a sliding frame (7) and a driving screw (8), the sliding frame (7) slides on the clamping portion, the clamping plate (6) and the sliding frame (7) are fixedly connected, the driving screw (8) is threadedly engaged with the clamping portion, and the distal end of the driving screw (8) is rotatably connected to the clamping plate (6); A limiting arc plate (10) is arranged on the clamping portion, a return torsion spring (5) is arranged on the hinge shaft between the positioning arc plate (3) and the clamping arc plate (4), and the limiting arc plate (10) is arranged to slide along the circumference of the clamping arc plate (4). When the inner side surface of the limiting arc plate (10) is in contact with the outer side surface of the positioning arc plate (3) and the outer side surface of the clamping arc plate (4) at the same time, the positioning arc plate (3) and the clamping arc plate form a complete arc plate.

2. The drainage pipe hoisting and installation device according to claim 1 is characterized in that: The regulating arm (15) is composed of two connecting rods (16), the two connecting rods (16) are connected via a rotating shaft, and one end of the connecting rod (16) away from the rotating shaft is fixedly connected to the corresponding clamping portion.

3. The drainage pipe hoisting and installation device according to claim 2 is characterized in that: Two adjusting arms (15) are provided, and the two adjusting arms (15) are symmetrically arranged front and back with respect to the bent pipe (1).

4. The drainage pipe hoisting and installation device according to claim 1, characterized in that: The positioning arc plate (3) is provided with an adjustment component, and the adjustment component is used to adjust the sliding of the limiting arc plate (10). The adjustment component comprises a sliding arc rod (11) and a first spring (12). The end surface of the positioning arc plate (3) is provided with a sliding seat (13). The sliding arc rod (11) is slidably inserted into the sliding seat (13). One end of the sliding arc rod (11) is fixedly connected to the limiting arc plate (10). The first spring (12) is sleeved on the sliding arc rod (11). The first spring (12) is located between the sliding seat (13) and the limiting arc plate (10). The first spring (12) is in a compressed state. A hanging ring (14) is provided at one end of the sliding arc rod (11) away from the limiting arc plate (10).

5. The drainage pipe hoisting and installation device according to claim 4 is characterized in that: The lifting arm (17) is radially slidably arranged along the clamping portion, a mounting seat (20) is arranged on the positioning arc plate (3), a slider (21) is arranged at the end of the lifting arm (17), the slider (21) is slidably arranged in the mounting seat (20), a driving shaft (22) is arranged in the mounting seat (20), the driving shaft (22) is penetrated by the slider (21), a second spring is sleeved on the driving shaft (22), the second spring is located between the slider (21) and the mounting seat (20), a driving track groove is opened on the side of the driving shaft (22), an elastic shaft (23) is arranged on the slider (21), the elastic shaft (23) is adapted to the driving track groove, the driving track groove comprises an annular groove (24), a linear groove (25), and a spiral groove (26), the annular groove (24) is arranged along the circumference of the driving shaft (22), and the annular groove (24) is arranged along the circumference of the driving shaft (22). The groove depth at the starting point of the annular groove (24) is greater than the groove depth at the end point thereof; the linear groove (25) is along the axial direction of the driving shaft (22); the starting point of the linear groove (25) is connected to the starting point of the annular groove (24); the starting point of the spiral groove (26) is connected to the end point of the linear groove (25); the groove depth at the end point of the linear groove (25) is less than the groove depth at the starting point of the spiral groove (26); the end point of the spiral groove (26) is connected to the end point of the annular groove (24); the spiral angle of the spiral groove (26) is 360 degrees; the groove depth at the end point of the spiral groove (26) is less than the groove depth at the end point of the annular groove (24); a winding shaft (28) is rotatably arranged on the mounting seat (20); the driving shaft (22) and the winding shaft (28) are connected via a gear set (27); and the winding shaft (28) and the hanging ring (14) are connected via a steel wire rope (29).

6. The drainage pipe hoisting and installation device according to claim 1, characterized in that: A rubber anti-skid pad (9) is provided on the side of the clamping plate (6) facing the bent pipe (1), and a scale is provided on the sliding frame (7).

7. The drainage pipe hoisting and installation device according to claim 3, characterized in that: An angle sensor (30) is arranged on the rotating shaft, and the angle sensor (30) is used to measure the angle between the two connecting rods (16) on the same lifting arm (17). A height sensor (31) is arranged at a position of the lifting arm (17) close to the clamping portion, and a handheld terminal is also arranged. The height sensor (31) and the angle sensor (30) are connected to the handheld terminal via wireless Bluetooth.

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