Water conservancy construction pipeline hoisting device with angle adjusting function

Abstract

The invention relates to the technical field of water conservancy pipeline installation, and discloses a water conservancy construction pipeline hoisting device with an angle adjusting function, which comprises a hoisting structure, two suspension structures, two belt conveying structures and two jacking structures, wherein the hoisting structure comprises a suspension portal frame, two sliding frames, two first hoisting devices and two second hoisting devices, the two sliding frames are both installed on the top of the suspension portal frame in a sliding mode, the two first hoisting devices are installed on the two sliding frames respectively, and the two second hoisting devices are installed on the two sliding frames respectively. The two second hoisting devices are installed at the two ends of the suspension portal frame correspondingly. Through cooperative use of the jacking structure and the two second hoisting devices, the pipeline can be rapidly lifted and separated from the ground, the complexity and danger of manual carrying are reduced, the stability of the pipeline in the lifting process is ensured through a unique triangular supporting structure in the jacking structure, the pipeline is effectively prevented from shaking, and the construction safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy pipeline installation, and in particular to a water conservancy construction pipeline lifting device with an angle adjustment function. Background Art

[0002] The water conservancy construction pipeline lifting device is a mechanical equipment or device combination specially used in water conservancy projects to lift the pipeline from the ground or other locations to the required height or installation position.

[0003] In the prior art, the conventional practice for lifting pipelines during water conservancy construction is that workers use lifting equipment to lift the pipelines through two lifting belts, adjust them to a suitable installation position, and then assemble the pipelines. However, there are significant disadvantages in the arrangement of the lifting belts in this process. Specifically, the two lifting belts are arranged at both ends of the pipeline. In actual operation, workers need to pass the lifting belts around the pipeline from the bottom before they can put the lifting belts on the pipeline. This process not only requires workers to enter the bottom of the pipeline to operate, which increases the risk and difficulty of the operation. This not only consumes a lot of time and manpower, but also has certain risks.

[0004] Therefore, it is necessary to design a hydraulic construction pipeline lifting device with angle adjustment function to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a water conservancy construction pipeline lifting device with an angle adjustment function.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A hydraulic construction pipeline lifting device with an angle adjustment function comprises a lifting structure, two suspension structures, two belt conveying structures and two jacking structures; Wherein, the lifting structure comprises a suspension gantry, two sliding frames, two first lifting devices and two second lifting devices, the two sliding frames are slidably mounted on the top of the suspension gantry, the two first lifting devices are respectively mounted on the two sliding frames, and the two second lifting devices are respectively mounted at both ends of the suspension gantry; Wherein, the suspension structure comprises a lifting belt and two fixing columns, the two fixing columns are respectively fixed at two ends of the lifting belt, and the two lifting belts are respectively connected to the traction ends of the two first lifting devices; Wherein, the belt feeding structure is composed of a belt feeding unit and a driving unit; The lifting structure is composed of a push rod, a mounting frame, a clamping structure, a sliding structure, a pressing structure and a positioning structure. The push rod is fixed at the top position of the mounting frame, and the two mounting frames are respectively connected to the traction ends of the two second lifting devices.

[0007] As a preferred technical solution of the present invention, the tape feeding unit includes a fixed plate, a tape feeding plate and a sliding rod. The tape feeding plate is slidably set on the fixed plate, and the fixed plate and the tape feeding plate are both semi-annular structures. A slot is provided at one end of the tape feeding plate, and the slot is adapted to the shape of the fixed column. An arc-shaped sliding opening is provided on the fixed plate, a sliding block is fixed on the side of the tape feeding plate, and the sliding rod is slidably set in the sliding opening. A limiting plate is fixed at one end of the sliding rod away from the tape feeding plate, and the fixed plate and the tape feeding plate are connected by a limiting member.

[0008] As a preferred technical solution of the present invention, the limiting member includes two side plates, a guide rod and a guide block. The two side plates are respectively fixed at both ends of the fixed plate. The guide rod is fixed between the two side plates, and the guide rod is an arc-shaped structure. The guide block is slidably mounted on the guide rod. A connecting plate is fixed on the side of the guide block, and the connecting plate is also fixedly connected to the belt feeding plate.

[0009] As a preferred technical solution of the present invention, the outer surface of the fixing plate is in contact with the side surface of the guide block.

[0010] As a preferred technical solution of the present invention, the driving unit includes an assembly plate, a support and a driving motor, the assembly plate is fixed on the fixed plate, the support is installed at an end of the assembly plate away from the fixed plate, the driving motor is installed on the support, a gear is installed on the output shaft of the driving motor, a tooth plate is fixed on the belt feeding plate, a plurality of teeth are arranged on the tooth plate, and the tooth plate and the gear are meshed with each other.

[0011] As a preferred technical solution of the present invention, the clamping structure includes a support plate, a through opening and two clamping rods. The support plate is fixed to one end of the mounting frame away from the top rod. The through opening is opened on the side of the support plate. The two clamping rods are movably inserted at both ends of the through opening respectively, and the two clamping rods are connected by a first spring.

[0012] As a preferred technical solution of the present invention, the sliding structure includes an opening, two limit blocks, two guide plates and a pressure plate. The opening is opened on the side of the support plate, and the opening is connected to the through opening. The two limit blocks are respectively fixed on the two clamping rods, and the two limit blocks are slidably arranged in the opening. The two guide plates are respectively fixed on the sides of the two limit blocks. The two guide plates are both inclined, and the inclination directions of the two guide plates are opposite. The pressure plate is placed between the two guide plates.

[0013] As a preferred technical solution of the present invention, the downward pressing structure includes a connecting frame, a through-opening and two anti-slip sleeves, the connecting frame is fixed on the top surface of the pressure plate, the through-opening is opened on the side of the mounting frame, the end of the connecting frame away from the pressure plate extends into the through-opening, and the connecting frame is slidably arranged in the through-opening, the two anti-slip sleeves are fixedly sleeved on the end of the connecting frame away from the pressure plate, and the two anti-slip sleeves are respectively located on both sides of the mounting frame, and the connecting frame is connected to the top rod by a tension spring.

[0014] As a preferred technical solution of the present invention, the positioning structure includes an outer cylinder, an inner rod, a connecting rod, a movable rack and a fixed rack. The outer cylinder is fixed to an end of the connecting frame away from the pressure plate, and the inner rod is slidably arranged in the outer cylinder. The outer cylinder and the inner rod are connected by a second spring. One end of the connecting rod is fixedly connected to the inner rod, and the other end of the connecting rod is fixedly connected to the movable rack. The fixed rack is fixed to the side of the mounting frame, and the fixed rack and the movable rack are arranged opposite each other.

[0015] As a preferred technical solution of the present invention, a handle is installed at one end of the inner rod located outside the outer tube.

[0016] The present invention has the following beneficial effects: 1. Improve construction efficiency and safety: The device can quickly lift the pipeline off the ground through the use of the jacking structure and two second lifting devices, reducing the tediousness and danger of manual handling. The unique triangular support structure in the jacking structure ensures the stability of the pipeline during the lifting process, effectively avoiding pipeline shaking and improving construction safety; 2. Automatically assemble the lifting belt and simplify the operation process: The introduction of the belt feeding structure realizes the automatic assembly of the lifting belt, and there is no need to manually bypass the bottom of the pipeline, which greatly simplifies the operation process and saves time and labor costs. The drive motor, gears, toothed plates and other components in the belt feeding structure work together to ensure that the lifting belt can bypass the pipeline accurately and efficiently, thereby improving construction efficiency; 3. Stable structure to ensure construction quality: Both the lifting structure and the conveying belt structure adopt stable designs, such as the triangular support structure, the limiting function of the guide rod and the guide block, etc., to ensure stability and reliability during the entire lifting process. The function of controlling the angle of the pipeline by pushing and pulling the pipeline allows construction personnel to adjust the pipeline position more flexibly, meeting the needs of different construction scenarios while ensuring the stability of construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the hydraulic construction pipeline lifting device with angle adjustment function proposed by the present invention; Figure 2 This is a schematic diagram of the state of the present invention when lifting a pipeline; Figure 3 It is a structural schematic diagram of the belt conveyor structure; Figure 4 It is a structural schematic diagram of the belt conveyor structure from another perspective; Figure 5 It is a structural schematic diagram when the fixed plate and the belt feeding plate are staggered; Figure 6 It is a structural schematic diagram of the jacking structure; Figure 7 It is a structural schematic diagram of the jacking structure from another perspective; Figure 8 is a schematic cross-sectional structural diagram of a connecting frame; Fig. 9 is a schematic diagram of the cross-sectional structure of the support plate; Fig.10 for Figure 1 A magnified view of the structure at A; Fig.11 for Figure 7 A magnified view of the structure at B; Fig.12 for Figure 8 Enlarged view of the structure at location C.

[0018] In the figure: 11, suspension gantry; 12, sliding frame; 13, first lifting device; 14, second lifting device; 21, lifting belt; 22, fixed column; 31, fixed plate; 32, belt feeding plate; 33, slot; 34, sliding mouth; 35, sliding rod; 36, limit plate; 37, side plate; 38, guide rod; 39, guide block; 310, connecting plate; 41, assembly plate; 42, support; 43, drive motor; 44, gear Wheel; 45, toothed plate; 50a, push rod; 50b, mounting frame; 51, support plate; 52, through-port; 53, clamping rod; 54, first spring; 61, opening; 62, limit block; 63, guide plate; 64, pressure plate; 71, connecting frame; 72, through-port; 73, anti-drop sleeve; 74, tension spring; 81, outer tube; 82, inner rod; 83, second spring; 84, connecting rod; 85, movable rack; 86, fixed rack. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-12The hydraulic construction pipeline lifting device with angle adjustment function comprises a lifting structure, two suspension structures, two belt feeding structures and two jacking structures. The lifting structure comprises a suspension gantry 11, two sliding frames 12, two first lifting devices 13 and two second lifting devices 14. The two sliding frames 12 are both slidably mounted on the top of the suspension gantry 11. The two first lifting devices 13 are respectively mounted on the two sliding frames 12. The two second lifting devices 14 are respectively mounted at both ends of the suspension gantry 11. The suspension structure comprises a lifting belt 21 and two fixed columns 22. The two fixed columns 22 are respectively fixed at both ends of the lifting belt 21. The two lifting belts 21 are respectively connected to the traction ends of the two first lifting devices 13. The belt feeding structure is composed of a belt feeding unit and a driving unit. The belt feeding unit includes a fixed plate 31, a belt feeding plate 32 and a slide bar 35. The belt feeding plate 32 is slidably arranged on the fixed plate 31, and the fixed plate 31 and the belt feeding plate 32 are both semi-annular structures. A slot 33 is provided at one end of the belt feeding plate 32, and the slot 33 is adapted to the shape of the fixed column 22. An arc-shaped slide 34 is provided on the fixed plate 31. A slider is fixed on the side of the belt feeding plate 32. The slide bar 35 is slidably arranged in the slide 34. The end of the slide bar 35 away from the belt feeding plate 32 is fixed with a limited position The plate 36, the fixed plate 31 and the tape feeding plate 32 are connected by a limiting member, and the limiting member includes two side plates 37, a guide rod 38 and a guide block 39. The two side plates 37 are respectively fixed at both ends of the fixed plate 31, and the guide rod 38 is fixed between the two side plates 37, and the guide rod 38 is an arc-shaped structure. The guide block 39 is slidably sleeved on the guide rod 38. A connecting plate 310 is fixed on the side of the guide block 39, and the connecting plate 310 is also fixedly connected to the tape feeding plate 32. The outer surface of the fixed plate 31 fits the side of the guide block 39; The driving unit includes an assembly plate 41, a support 42 and a driving motor 43. The assembly plate 41 is fixed on the fixing plate 31. The support 42 is installed at one end of the assembly plate 41 away from the fixing plate 31. The driving motor 43 is installed on the support 42. A gear 44 is installed on the output shaft of the driving motor 43. A toothed plate 45 is fixed on the belt feeding plate 32. The toothed plate 45 is provided with a plurality of teeth, and the toothed plate 45 and the gear 44 are meshed with each other. The fixed column 22 at one end of the lifting belt 21 is connected to the traction end of the first lifting device 13 through a sling. The staff inserts the fixed column 22 at the other end of the lifting belt 21 into the slot 33. When feeding the belt, the staff moves the fixing plate 31 to one side of the pipeline and starts the driving motor 43. When the driving motor 43 is running, it can drive the gear 44 to rotate. When the gear 44 rotates, it drives the toothed plate 45 meshed with it to rotate, which makes the belt feeding plate 32 rotate. When the belt feeding plate 32 rotates, it can drive the fixed rod inserted in the slot 33 to move. The lifting structure is composed of a push rod 50a, a mounting frame 50b, a clamping structure, a sliding structure, a pressing structure and a positioning structure. The push rod 50a is fixed at the top position of the mounting frame 50b. The two mounting frames 50b are respectively connected to the traction ends of the two second lifting devices 14. The clamping structure includes a support plate 51, a through hole 52 and two clamping rods 53. The support plate 51 is fixed to the end of the mounting frame 50b away from the push rod 50a. The through hole 52 is opened on the side of the support plate 51. The two clamping rods 53 are respectively movably inserted at both ends of the through hole 52. The two clamping rods 53 are connected by a first spring 54. The sliding structure includes an opening 61, two limit blocks 62, and two guide plates 63 and the pressure plate 64, the opening 61 is opened on the side of the support plate 51, and the opening 61 is connected with the through-port 52, the two limit blocks 62 are respectively fixed on the two clamping rods 53, and the two limit blocks 62 are slidably arranged in the opening 61, the two guide plates 63 are respectively fixed on the sides of the two limit blocks 62, the two guide plates 63 are inclined, and the inclination directions of the two guide plates 63 are opposite, the pressure plate 64 is placed between the two guide plates 63, the top rod 50a and the two clamping rods 53 together form a triangular support structure, which can stably provide fixation, thereby ensuring the stability of the pipeline when it is lifted and avoiding the pipeline from shaking during the rising process; The pressing structure includes a connecting frame 71, a through hole 72 and two anti-dropping sleeves 73. The connecting frame 71 is fixed on the top surface of the pressing plate 64. The through hole 72 is opened on the side of the mounting frame 50b. The end of the connecting frame 71 away from the pressing plate 64 extends into the through hole 72, and the connecting frame 71 is slidably arranged in the through hole 72. The two anti-dropping sleeves 73 are fixedly sleeved on the end of the connecting frame 71 away from the pressing plate 64, and the two anti-dropping sleeves 73 are respectively located on both sides of the mounting frame 50b. The connecting frame 71 is connected to the top rod 50a by a tension spring 74. The positioning structure includes an outer cylinder 81, an inner rod 82, a connecting rod 84, a movable rack 85 and a fixed rack 86. The outer cylinder 81 is fixed to the end of the connecting frame 71 away from the pressure plate 64. The inner rod 82 is slidably arranged in the outer cylinder 81. A handle is installed at one end of the inner rod 82 located outside the outer cylinder 81. The outer cylinder 81 and the inner rod 82 are connected by a second spring 83. One end of the connecting rod 84 is connected to the inner rod 82. The inner rod 82 is fixedly connected, and the other end of the connecting rod 84 is fixedly connected to the movable rack 85. The fixed rack 86 is fixed to the side of the mounting frame 50b, and the fixed rack 86 is arranged opposite to the movable rack 85. The staff first inserts the top rod 50a into the pipe mouth position of the pipeline, and then pulls the handle on the inner rod 82 to move the inner rod 82. When the inner rod 82 moves, it can drive the movable rack 85 to move through the connecting rod until the movable rack 85 is separated from the fixed rack 86. Without the restriction of the movable rack 85, the connecting frame 71 can slide freely in the through-hole 72. Then the staff pulls the connecting frame 71 downward, so that the connecting frame 71 drives the pressure plate 64 to move downward. When the pressure plate 64 moves downward, it can squeeze the two inclined guide plates 63. When the two inclined guide plates 63 are squeezed, the two guide plates 63 can respectively drive the two limit blocks 62 to move, so that the two clamping rods 53 move away from each other.

[0021] The specific working principle of the present invention is as follows: When the hydraulic construction pipeline lifting device with angle adjustment function proposed by the present invention is used, the staff first moves the suspension gantry 11 to the top of the hydraulic pipeline to be installed, and then arranges the two jacking structures at the two ends of the pipeline respectively, and uses the two second lifting devices 14 and the two jacking structures to lift the pipeline together, so that there is a certain distance between the pipeline and the ground. Then the staff installs the two suspension structures on the two belt feeding structures respectively, and controls the positions of the two belt feeding structures so that the two belt feeding structures are both sleeved on the pipeline, and then uses the two belt feeding structures to complete the belt feeding action, so as to realize the automatic winding of the lifting belt 21 around the pipe. Finally, the staff uses the two first lifting devices 13 to lift the two lifting belts 21, so as to realize the lifting of the pipeline. In addition, during the installation of the pipeline, the staff can control the angle of the pipeline by pushing and pulling the pipeline. Specifically, in the present invention, the jacking structure is used to apply a force point at the pipe mouth position of the pipeline, so that the pipeline can be quickly lifted and lifted off the ground. For the jacking structure, the staff first inserts the jack rod 50a into the pipe mouth position of the pipeline, and then pulls the handle on the inner rod 82 to move the inner rod 82. When the inner rod 82 moves, it can drive the movable rack 85 to move through the connecting rod until the movable rack 85 is separated from the fixed rack 86. Without the restriction of the movable rack 85, the connecting frame 71 can slide freely in the through-hole 72. Then the staff pulls the connecting frame 71 downward, so that the connecting frame 71 drives the pressure plate 64 to move downward. When the pressure plate 64 moves downward, it can squeeze the two inclined guide plates 63. When the two inclined guide plates 63 are squeezed, the two guide plates 63 can respectively drive the two limit switches. The block 62 moves, so that the two clamping rods 53 move away from each other until the two clamping rods 53 both press the inner wall of the pipe. In this case, the staff releases the grip on the inner rod 82, so that the inner rod 82 is reset under the elastic force of the second spring 83. When the inner rod 82 is reset, the connecting rod 84 and the movable rack 85 are reset accordingly, until the movable rack 85 is meshed with the fixed rack 86 again. At this time, the movable rack 85 and the fixed rack 86 play a fixing role in the position of the connecting frame 71, and the position of the pressing plate 64 will also be fixed. When the pressing plate 64 is fixed, the positions of the two clamping rods 53 are also fixed. In this state, the top rod 50a and the two clamping rods 53 together form a triangular support structure, which can stably provide fixation, thereby ensuring the stability of the pipeline when it is lifted and avoiding the pipeline from shaking during the rising process. When the pipeline is lifted, the staff uses the belt feeding structure to realize automatic assembly of the lifting belt 21. Specifically, the fixed column 22 at one end of the lifting belt 21 is connected to the traction end of the first lifting device 13 through a sling. The staff inserts the fixed column 22 at the other end of the lifting belt 21 into the slot 33. When feeding the belt, the staff moves the fixed plate 31 to one side of the pipeline and starts the drive motor 43. When the drive motor 43 is running, it can drive the gear 44 to rotate. When the gear 44 rotates, it drives the gear plate 45 meshing with it to rotate, which makes the belt feeding plate 32 rotate. When the belt feeding plate 32 rotates, it can drive the fixed rod inserted in the slot 33 to move. Figure 5 As shown, when the tape feeding plate 32 rotates to the other side of the pipe, the lifting belt 21 will bypass the bottom of the pipe and extend from the other side of the pipe, thereby realizing automatic assembly of the lifting belt 21. There is no need to manually bypass the lifting belt 21 from the bottom of the pipe. In addition, during the movement of the tape feeding plate 32, the guide rod 38 and the guide block 39 limit the movement of the tape feeding plate 32, thereby ensuring the stability of the tape feeding plate 32 during movement. In addition, the setting of the slide rod 35 and the limiting plate 36 can prevent the tape feeding plate 32 from detaching from the fixed plate 31.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic construction pipeline lifting device with angle adjustment function, characterized in that: It includes a lifting structure, two suspension structures, two belt conveying structures and two jacking structures; The lifting structure comprises a suspension gantry (11), two sliding frames (12), two first lifting devices (13) and two second lifting devices (14); the two sliding frames (12) are both slidably mounted on the top of the suspension gantry (11); the two first lifting devices (13) are respectively mounted on the two sliding frames (12); and the two second lifting devices (14) are respectively mounted at both ends of the suspension gantry (11); The suspension structure comprises a lifting belt (21) and two fixing columns (22), the two fixing columns (22) are respectively fixed to the two ends of the lifting belt (21), and the two lifting belts (21) are respectively connected to the traction ends of the two first lifting devices (13); Wherein, the belt feeding structure is composed of a belt feeding unit and a driving unit; The lifting structure is composed of a push rod (50a), a mounting frame (50b), a clamping structure, a sliding structure, a pressing structure and a positioning structure; the push rod (50a) is fixed at the top position of the mounting frame (50b); and the two mounting frames (50b) are respectively connected to the traction ends of two second lifting devices (14).

2. The hydraulic construction pipeline lifting device with angle adjustment function according to claim 1 is characterized in that: The tape feeding unit comprises a fixed plate (31), a tape feeding plate (32) and a sliding rod (35); the tape feeding plate (32) is slidably arranged on the fixed plate (31), and the fixed plate (31) and the tape feeding plate (32) are both semi-annular structures; a slot (33) is provided at one end of the tape feeding plate (32), and the slot (33) is adapted to the shape of the fixed column (22); an arc-shaped sliding opening (34) is provided on the fixed plate (31); a sliding block is fixed on the side of the tape feeding plate (32); the sliding rod (35) is slidably arranged in the sliding opening (34); a limiting plate (36) is fixed at one end of the sliding rod (35) away from the tape feeding plate (32); and the fixed plate (31) and the tape feeding plate (32) are connected via a limiting member.

3. The hydraulic construction pipeline lifting device with angle adjustment function according to claim 2 is characterized in that: The limiting member comprises two side plates (37), a guide rod (38) and a guide block (39); the two side plates (37) are respectively fixed at two ends of a fixed plate (31); the guide rod (38) is fixed between the two side plates (37), and the guide rod (38) is in an arc-shaped structure; the guide block (39) is slidably sleeved on the guide rod (38); a connecting plate (310) is fixed to a side surface of the guide block (39); and the connecting plate (310) is also fixedly connected to the tape feeding plate (32).

4. The hydraulic construction pipeline lifting device with angle adjustment function according to claim 3 is characterized in that: The outer surface of the fixing plate (31) is in contact with the side surface of the guide block (39).

5. The hydraulic construction pipeline lifting device with angle adjustment function according to claim 3 is characterized in that: The driving unit comprises an assembly plate (41), a support (42) and a driving motor (43); the assembly plate (41) is fixed on the fixed plate (31); the support (42) is mounted on an end of the assembly plate (41) away from the fixed plate (31); the driving motor (43) is mounted on the support (42); a gear (44) is mounted on the output shaft of the driving motor (43); a toothed plate (45) is fixed on the tape feeding plate (32); a plurality of teeth are arranged on the toothed plate (45); and the toothed plate (45) and the gear (44) are meshed with each other.

6. The hydraulic construction pipeline lifting device with angle adjustment function according to claim 1 is characterized in that: The clamping structure comprises a support plate (51), a through hole (52) and two clamping rods (53); the support plate (51) is fixed to one end of the mounting frame (50b) away from the top rod (50a); the through hole (52) is provided on a side of the support plate (51); the two clamping rods (53) are movably plugged into two ends of the through hole (52) respectively; and the two clamping rods (53) are connected via a first spring (54).

7. The hydraulic construction pipeline lifting device with angle adjustment function according to claim 6 is characterized in that: The sliding structure comprises an opening (61), two limit blocks (62), two guide plates (63) and a pressure plate (64); the opening (61) is formed on a side surface of the support plate (51), and the opening (61) is communicated with the through opening (52); the two limit blocks (62) are respectively fixed on two clamping rods (53), and the two limit blocks (62) are both slidably arranged in the opening (61); the two guide plates (63) are respectively fixed on the sides of the two limit blocks (62), and the two guide plates (63) are both inclined, and the inclination directions of the two guide plates (63) are opposite; and the pressure plate (64) is arranged between the two guide plates (63).

8. The hydraulic construction pipeline lifting device with angle adjustment function according to claim 7 is characterized in that: The pressing structure comprises a connecting frame (71), a through hole (72) and two anti-slip sleeves (73); the connecting frame (71) is fixed on the top surface of the pressing plate (64); the through hole (72) is opened on the side of the mounting frame (50b); one end of the connecting frame (71) away from the pressing plate (64) extends into the through hole (72); the connecting frame (71) is slidably arranged in the through hole (72); the two anti-slip sleeves (73) are fixedly sleeved on one end of the connecting frame (71) away from the pressing plate (64); the two anti-slip sleeves (73) are respectively located on both sides of the mounting frame (50b); the connecting frame (71) and the push rod (50a) are connected via a tension spring (74).

9. The hydraulic construction pipeline lifting device with angle adjustment function according to claim 8, characterized in that: The positioning structure comprises an outer cylinder (81), an inner rod (82), a connecting rod (84), a movable rack (85) and a fixed rack (86); the outer cylinder (81) is fixed to one end of the connecting frame (71) away from the pressure plate (64); the inner rod (82) is slidably arranged in the outer cylinder (81); the outer cylinder (81) and the inner rod (82) are connected via a second spring (83); one end of the connecting rod (84) is fixedly connected to the inner rod (82); the other end of the connecting rod (84) is fixedly connected to the movable rack (85); the fixed rack (86) is fixed to a side surface of the mounting frame (50b), and the fixed rack (86) and the movable rack (85) are arranged opposite each other.

10. The hydraulic construction pipeline lifting device with angle adjustment function according to claim 9, characterized in that: A handle is installed at one end of the inner rod (82) located outside the outer cylinder (81).

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