Pipe jacking angle adjusting device

Abstract

The application discloses a pipe jacking angle adjusting device for pipe jacking construction and belongs to the field of pipe jacking construction equipment.The pipe jacking angle adjusting device comprises a pipe jacking body and a hoisting mechanism.The hoisting mechanism comprises a connecting piece, the lower end of the connecting piece is fixedly provided with a connecting rod, the lower end of the connecting rod is fixedly provided with a mounting block, the outer periphery of one side of the mounting block is fixedly provided with a first connecting ring, one side of the first connecting ring is fixedly provided with two first sliding rails, and the side, away from the first connecting ring, of the mounting block is provided with a first sliding groove.When the device is used, the driving wheels on the two sides of one pipe jacking body rotate simultaneously, so that the clamping mechanism can clamp the pipe jacking body, the stability of the pipe jacking body in the rotating process is facilitated, the ground driving structure is further arranged on the device, the hoisting equipment cooperates together, the pipe jacking body can be more accurately clamped on the two sides, and the clamping accuracy is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pipe jacking construction equipment, in particular to a pipe jacking angle adjusting device for pipe jacking construction. BACKGROUND

[0002] Pipe jacking technology is a trenchless pipe laying construction technology for municipal construction. The advantages are that it does not affect the surrounding environment or has little impact, the construction site is small, the noise is small, and it can work deep underground. During the use of pipe jacking, a pipe jacking angle adjusting device for pipe jacking construction is often needed.

[0003] The pipe jacking angle adjusting device for pipe jacking construction disclosed in the patent No. CN220354634U includes a sleeve, the top of the sleeve is connected with a lifting structure, the top of the lifting structure is connected with a top plate, the top of the top plate is fixedly connected with a vertical rod, the outer wall of the vertical rod is rotatably connected with a circular plate, a plurality of circular openings are processed on the top of the circular plate, and the circular openings are located on the outer side of the vertical rod. By rotating the front vertical cylinder in the lifting structure, the front groove wheel is rotated, the rotating groove wheel drives the rear groove wheel to rotate through the belt, and then the two vertical cylinders are simultaneously rotated, so that the vertical cylinder is rotated downward on the outer wall of the screw rod, the vertically downward moving vertical cylinder drives the sleeve to move downward, so that the position of the internal pipe jacking is moved, the working efficiency of the pipe jacking angle adjusting device for pipe jacking construction is improved, and the use limitation is eliminated.

[0004] In the use process of the existing pipe jacking angle adjusting device, the whole pipe jacking is hoisted and then the angle of the pipe jacking is adjusted through hoisting equipment. In the process of angle adjustment, the pipe jacking is suspended in the air, and external impact and wind blowing may cause the whole pipe jacking to shake, so that the stability is poor, the adjustment efficiency is low, and the precision is low. SUMMARY

[0005] In view of the above problems existing in the prior art, the purpose of the present application is to provide a pipe jacking angle adjusting device for pipe jacking construction. The ground driving structure is provided, and the lifting equipment cooperates to clamp more accurately on both sides of the pipe jacking body, so that the clamping accuracy is ensured.

[0006] In order to solve the above problems, the technical scheme adopted by the present application is as follows: a pipe jacking angle adjusting device for pipe jacking construction, comprising a pipe jacking body and a lifting mechanism, the lifting mechanism comprises a connecting piece, the lower end of the connecting piece is fixedly installed with a connecting rod, the lower end of the connecting rod is fixedly installed with a mounting block, the outer periphery of one side of the mounting block is fixedly installed with a first connecting ring, one side of the first connecting ring is fixedly installed with two first sliding rails, and the side of the mounting block away from the first connecting ring is provided with a first sliding groove;

[0007] An angle adjustment mechanism is provided on one side of the lifting mechanism. The angle adjustment mechanism includes a second connecting ring. Two second slide rails are fixedly installed on one side of the second connecting ring. A first slider is fixedly installed on the inner wall of the second connecting ring. The first slider is slidably installed in the first slide groove.

[0008] The lower end of the angle adjustment mechanism is provided with a lifting mechanism;

[0009] The lower end of the lifting mechanism is provided with a clamping mechanism, which includes a first clamping rod, a second clamping rod fixedly installed on one side of the upper end of the first clamping rod, a drive rod rotatably installed on the outer side of the first clamping rod, and a drive wheel rotatably installed on one side of the drive rod.

[0010] Preferably, a protective ring is fixedly installed on the outer periphery of the connecting rod, a rack is fixedly installed on the groove wall of the first sliding groove, and a positioning block is fixedly installed on the outer periphery of the mounting block.

[0011] Preferably, the angle adjustment mechanism further includes an electromechanical box fixedly installed on the outside of the second connecting ring. An angle sensor is fixedly installed on the upper end of the electromechanical box. An clearance hole communicating with the electromechanical box is opened on the second connecting ring. A first motor is fixedly installed on the lower end of the second connecting ring. A gear is fixedly installed on the upper end of the first motor. The gear is meshed in the rack.

[0012] Preferably, the lifting mechanism includes four telescopic sleeves, with limit rings fixedly installed on the outer periphery of each telescopic sleeve. The four limit rings are slidably installed in the first slide rail and the second slide rail, respectively. An extension rod is fixedly installed at the lower end of each telescopic sleeve, and a rotating block is fixedly installed at the lower end of each extension rod. The rotating block is rotatably connected to the first clamping rod.

[0013] Preferably, both the first slide rail and the second slide rail are connected to an arc-shaped rod. A connecting rod is rotatably mounted on one end of the arc-shaped rod, and a fixed sleeve is rotatably mounted on one side of the connecting rod. A second sliding groove is provided on the fixed sleeve, and a second slider is slidably mounted in the second sliding groove. The second slider is rotatably connected to the connecting rod near the side of the second connecting ring.

[0014] Preferably, a triangular block is installed at one end of both the first clamping rod and the second clamping rod, a movable wheel is rotatably installed at the back end of both the first clamping rod and the second clamping rod, an elastic element is installed between the first clamping rod and the drive rod, a conveyor belt is installed on both the first clamping rod and the second clamping rod, and the conveyor belt and the drive wheel are connected by a belt drive structure.

[0015] Preferably, the lower end of the lifting mechanism is provided with a stabilizing mechanism, the stabilizing mechanism including a hydraulic rod fixedly installed at the lower end of the mounting block, a hollow cylinder fixedly installed at the lower end of the hydraulic rod, the hollow cylinder being fixedly connected to the fixed sleeve, and a connecting cylinder being installed at the lower end of the hollow cylinder.

[0016] Preferably, a connecting mechanism is provided on both sides of the lifting mechanism. The connecting mechanism includes a first support rod and a second support rod. The first support rod and the second support rod are rotatably connected to the extension rod. A central shaft is rotatably installed between the two extension rods. Mounting parts are rotatably installed at the upper and lower ends of the central shaft, respectively.

[0017] Preferably, a limiting plate is fixedly installed on the mounting component, a torsion spring is sleeved on the central shaft, the torsion spring is respectively abutted against the limiting plate and the mounting component, and a corrugated pipe is connected between the mounting component and the connecting cylinder.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] (1) Through the cooperation between the first slider, the first slide groove and the mounting block, the angle between the second slide rail and the first slide rail changes, and the angle between the second set of jacking pipe bodies and the first set of jacking pipe bodies at its lower end changes. In this way, the angle of the jacking pipe body can be adjusted during construction. During the angle adjustment process, both are fixed and are not easy to move or shift, so they are stable. After the angle is adjusted, the pier can be used directly for fixing and support. When the drive wheel contacts the ground, it can drive the first clamping rod to move towards the jacking pipe body until the first clamping rod abuts the lower end of the jacking pipe body. The first clamping rod and the second clamping rod are combined to form a bending structure, which can be clamped on one side of the jacking pipe body. When the device is in use, the drive wheels on both sides of one jacking pipe body rotate at the same time. Therefore, the clamping mechanism can clamp the jacking pipe body, which is convenient for the jacking pipe body to be stable during rotation. The device is also equipped with a ground drive structure and the lifting equipment works together to clamp the jacking pipe body on both sides more accurately, ensuring the accuracy of clamping.

[0020] (2) Through the cooperation between the second connecting ring, the first motor, the gear and the rack, after the motor is turned on, the gear rotates in the clearance hole and moves along the rack. At this time, the second connecting ring can slide in the first slide groove through the first slider. The angle between the second set of jacking pipe bodies and the first set of jacking pipe bodies at its lower end changes. This angle adjustment is controlled by the motor and has a certain degree of accuracy, which is convenient for small-amplitude rotation. An angle sensor is fixedly installed at the upper end of the electromechanical box, which makes the angle adjustment more accurate and the use effect is good.

[0021] (3) Through the cooperation between the hydraulic rod, fixed sleeve, connecting rod and arc rod, after the hydraulic rod is extended, the fixed sleeve, connecting rod and arc rod move downward until the drive wheel contacts the ground. The two first clamping rods and the second clamping rod are engaged on both sides of the jacking pipe body. At this time, the arc rod can no longer move downward. The telescopic sleeves on both sides of the arc rod approach each other. With the squeezing force of the drive wheel, the upper and lower ends exert force at the same time, which further enhances the clamping force on the jacking pipe body. When this device is in use, the positioning and clamping of the jacking pipe body can be completed by completing the linear extension of the hydraulic rod in one go, which ensures the stability of the jacking pipe body during the angle adjustment process.

[0022] (4) During the rotation of the first and second support rods, the torsion spring deforms. After the angle of the jacking pipe body is adjusted, the mechanism resets under the reaction of the torsion spring, which facilitates the secondary use of the device. The mounting parts and the connecting cylinder are connected by a bellows. The bellows adapts to the expansion and contraction, which makes the synchronous movement force of the first and second support rods on both sides uniform. The elasticity of the bellows expansion and contraction is matched with the elasticity of the torsion spring, which further ensures the smoothness of the device's reset after use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the lifting mechanism structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the angle adjustment mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram of the lifting mechanism structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the connecting rod structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the clamping mechanism of the present invention;

[0030] Figure 8 This is a cross-sectional view of the clamping mechanism of the present invention;

[0031] Figure 9 This is a schematic diagram of the connection mechanism of the present invention.

[0032] In the diagram: 1. Pipe jacking body; 2. Lifting mechanism; 21. Connecting piece; 22. Connecting rod; 23. Protective ring; 24. Mounting block; 25. First connecting ring; 26. First slide rail; 27. First slide groove; 28. Rack; 29. ​​Positioning block; 4. Angle adjustment mechanism; 41. Second connecting ring; 42. Second slide rail; 43. Electromechanical box; 44. Angle sensor; 45. Clearance hole; 46. First slider; 47. First motor; 48. Gear; 5. Lifting mechanism; 51. Telescopic sleeve; 52. Extension rod; 53. Limiting ring; 54. Rotating block; 55. Arc 56. Connecting rod; 57. Fixed sleeve; 58. Second slide groove; 59. Second slider; 6. Clamping mechanism; 61. First clamping rod; 62. Second clamping rod; 63. Triangular block; 64. Moving wheel; 65. Drive rod; 66. Drive wheel; 67. Elastic element; 68. Conveyor belt; 69. Belt drive structure; 7. Stabilizing mechanism; 71. Hydraulic rod; 72. Hollow cylinder; 73. Connecting cylinder; 8. Connecting mechanism; 81. First support rod; 82. Second support rod; 83. Central shaft; 84. Mounting part; 85. Limiting plate; 86. Torsion spring; 87. Bellows. Detailed Implementation

[0033] The present invention will be further described below with reference to specific embodiments.

[0034] Example 1

[0035] like Figures 1-8 As shown, a pipe jacking angle adjustment device for pipe jacking construction includes a pipe jacking body 1 and a lifting mechanism 2. During construction, the angle between two pipe jacking bodies 1 needs to be adjusted. The lifting mechanism 2 includes a connector 21, a connecting rod 22 is fixedly installed at the lower end of the connector 21, and an installation block 24 is fixedly installed at the lower end of the connecting rod 22. A screw hole is opened at the upper end of the connector 21, and a bolt is inserted into the screw hole for connection with the lifting equipment. After the lifting equipment is started, the connector 21 and its lower end mechanism are moved to the outer periphery of the pipe jacking body 1 for supporting and adjusting the angle of the pipe jacking body 1.

[0036] Two first slide rails 26 are fixedly installed on one side of the first connecting ring 25. The first slide rails 26 are relatively long and can be adapted to jacking pipe bodies 1 of different diameters. An angle adjustment mechanism 4 is provided on one side of the lifting mechanism 2. The angle adjustment mechanism 4 includes a second connecting ring 41. Two second slide rails 42 are fixedly installed on one side of the second connecting ring 41. The second slide rails 42 and the first slide rails 26 are arranged opposite each other and are adapted to the positions of the two jacking pipe bodies 1 on both sides. The clamping mechanism 6 at the lower end of the first slide rail 26 clamps the two sides of the jacking pipe body 1. The lower end of the angle adjustment mechanism 4 is provided with a lifting mechanism 5. The lower end of the lifting mechanism 5 is provided with a clamping mechanism 6. The two clamping mechanisms 6 at the lower end of the second slide rails 42 clamp the two sides of the second set of jacking pipe bodies 1, so that the two jacking pipe bodies 1 can be clamped and fixed respectively, ensuring that the two jacking pipe bodies 1 are positioned during the angle adjustment process and will not shift.

[0037] A first groove 27 is provided on the side of the mounting block 24 away from the first connecting ring 25. The first connecting ring 25 is fixedly installed on the outer periphery of one side of the mounting block 24. A first slider 46 is fixedly installed on the inner wall of the second connecting ring 41. The first slider 46 is slidably installed in the first groove 27. Through the cooperation between the first slider 46, the first groove 27, and the mounting block 24, the second connecting ring 41 can slide through the first slider 46 in the first groove 27. During the sliding process, the angle between the second slide rail 42 and the first slide rail 26 changes. Therefore, the angle between the second set of jacking pipe bodies 1 and the first set of jacking pipe bodies 1 at their lower ends changes. In this way, the angle of the jacking pipe body 1 can be adjusted during construction. This device moves and rotates the jacking pipe body 1 by lifting. It is suitable for rugged terrain and narrow environments. During the angle adjustment process, both the jacking pipe body 1 and the first set of jacking pipe bodies 1 are fixed, and it is not easy to displace or shift, so it has stability. After the angle is adjusted, it can be directly fixed and supported by the anchor block.

[0038] The clamping mechanism 6 includes a first clamping rod 61, a second clamping rod 62 fixedly installed on one side of the upper end of the first clamping rod 61, a drive rod 65 rotatably installed on the outer side of the first clamping rod 61, and a drive wheel 66 rotatably installed on one side of the drive rod 65.

[0039] When the lifting equipment transports the clamping mechanism 6 to both sides of the jacking pipe body 1, the lowest end of the first clamping rod 61 first contacts the ground. The first clamping rod 61 abuts against the ground and rotates towards the bottom of the jacking pipe body 1 until the drive wheel 66 contacts the ground. The drive wheel 66 is equipped with a separate motor drive module. After the drive wheel 66 rotates, it can drive the first clamping rod 61 to move towards the jacking pipe body 1 until the first clamping rod 61 abuts against the lower end of the jacking pipe body 1. The first clamping rod 61 and the second clamping rod 62 are combined to form a bent structure, which can be clamped on one side of the jacking pipe body 1. When the device is in use, the drive wheels 66 on both sides of the jacking pipe body 1 rotate simultaneously. Therefore, the clamping mechanism 6 can clamp the jacking pipe body 1, which is convenient for the stability of the jacking pipe body 1 during rotation. This device is also equipped with a ground drive structure. With the cooperation of the lifting equipment, it can clamp the jacking pipe body 1 more accurately on both sides, ensuring the accuracy of clamping.

[0040] Example 2

[0041] like Figures 3-5 As shown, a protective ring 23 is fixedly installed on the outer periphery of the connecting rod 22, a rack 28 is fixedly installed on the groove wall of the first slide groove 27, and a positioning block 29 is fixedly installed on the outer periphery of the mounting block 24.

[0042] The angle adjustment mechanism 4 also includes an electromechanical box 43 fixedly installed on the outside of the second connecting ring 41. The second connecting ring 41 has a clearance hole 45 that communicates with the electromechanical box 43. The lower end of the second connecting ring 41 is fixedly installed with a first motor 47, and the upper end of the first motor 47 is fixedly installed with a gear 48. The gear 48 is meshed in the rack 28.

[0043] The first motor 47 is fixedly installed on the second connecting ring 41. After it is turned on, the gear 48 rotates in the clearance hole 45 and moves along the rack 28. At this time, the second connecting ring 41 can slide in the first slide groove 27 through the first slider 46. During the sliding process, the angle between the second slide rail 42 and the first slide rail 26 changes. Therefore, the angle between the second set of jacking pipe bodies 1 and the first set of jacking pipe bodies 1 at its lower end changes. In this way, the angle of the jacking pipe body 1 can be adjusted during the construction process.

[0044] This angle adjustment is controlled by a motor, which has a certain degree of precision and facilitates small-amplitude rotation. An angle sensor 44, model MRF500, is fixedly installed on the upper end of the electromechanical box 43. In the initial state, the first slide rail 26 and the second slide rail 42 are opposite each other, and the data detected by the angle sensor 44 is zero. After the first motor 47 is turned on, the angle between the second slide rail 42 and the first slide rail 26 changes. At this time, the angle sensor 44 detects the angle change, which is consistent with the angle data of the rotation of the jacking pipe body 1, making the angle adjustment more precise and the use effect better.

[0045] Example 3

[0046] like Figures 3-8 As shown, the lifting mechanism 5 includes four telescopic sleeves 51. Limiting rings 53 are fixedly installed on the outer periphery of the telescopic sleeves 51. The four limiting rings 53 are slidably installed in the first slide rail 26 and the second slide rail 42 respectively. An extension rod 52 is fixedly installed at the lower end of the movable rod of the telescopic sleeve 51. A rotating block 54 is fixedly installed at the lower end of the extension rod 52. The rotating block 54 is rotatably connected to the first clamping rod 61. The angle between the first clamping rod 61 and the second clamping rod 62 is adjustable to accommodate different angles of the jacking pipe body 1.

[0047] Arc-shaped rods 55 are connected to both the first slide rail 26 and the second slide rail 42. Two sets of arc-shaped rods 55 are provided on each side. A connecting rod 56 is rotatably installed at one end of the arc-shaped rod 55, and a fixed sleeve 57 is rotatably installed on one side of the connecting rod 56.

[0048] The lower end of the lifting mechanism 2 is provided with a stabilizing mechanism 7. The stabilizing mechanism 7 includes a hydraulic rod 71 fixedly installed at the lower end of the mounting block 24. A hollow cylinder 72 is fixedly installed at the lower end of the hydraulic rod 71. The hollow cylinder 72 is fixedly connected to the fixed sleeve 57. There are two sets of connecting rods 56 on each side. The four sets of connecting rods 56 are rotatably connected to the corresponding arc rods 55.

[0049] When the hydraulic rod 71 is activated, its bottom extends, causing the fixed sleeve 57, connecting rod 56, and arc-shaped rod 55 to move downwards until the drive wheel 66 contacts the ground. The two first clamping rods 61 and the second clamping rod 62 are engaged on both sides of the jacking pipe body 1. At this point, the arc-shaped rod 55 can no longer move downwards, the fixed sleeve 57 moves downwards, the connecting rod 56 rotates, and the arc angle between the drive arc-shaped rods 55 decreases. The telescopic sleeves 51 on both sides of the arc-shaped rod 55 move closer to each other, and with the squeezing force of the drive wheel 66 moving forward, the upper and lower ends exert force simultaneously, further enhancing the clamping force on the jacking pipe body 1.

[0050] When in use, this device completes the positioning and clamping of the jacking pipe body 1 by extending the hydraulic rod 71 in a straight line, which ensures the stability of the jacking pipe body 1 during the angle adjustment process.

[0051] The fixed sleeve 57 has a second sliding groove 58, in which a second slider 59 is slidably installed. The second slider 59 is rotatably connected to the connecting rod 56 near the second connecting ring 41.

[0052] When the first motor 47 is driven, the second connecting ring 41, the second slide rail 42, the telescopic sleeve 51, and the arc rod 55 change angle together. At this time, the connecting rod 56 and the second slider 59 on the same side rotate along the second slide groove 58, ensuring the feasibility of the device.

[0053] Example 4

[0054] like Figures 5-9 As shown, a triangular block 63 is installed at one end of the first clamping rod 61 and the second clamping rod 62. A conveyor belt 68 is installed on both the first clamping rod 61 and the second clamping rod 62. When the first clamping rod 61 and the second clamping rod 62 abut against the outer periphery of the jacking pipe body 1, the conveyor belt 68 contacts the outer periphery of the jacking pipe body 1. The conveyor belt 68 has a certain friction force, which further reduces the deviation during the clamping process.

[0055] The conveyor belt 68 and the drive wheel 66 are connected by a belt drive structure 69, which consists of pulleys and belts. The pulleys are respectively installed on the shafts of the conveyor belt 68 and the drive wheel 66. Adjacent pulleys are connected by belts. When the drive wheel 66 rotates, the belt drive structure 69 and the conveyor belt 68 rotate together in the same direction. The conveyor belts 68 on both sides of the same jacking pipe body 1 rotate in opposite directions. When the triangular block 63 at the lower end of the first clamping rod 61 is inserted into the bottom of the jacking pipe body 1, the jacking pipe body 1 can be rolled in the opposite direction on the triangular block 63 and between the first clamping rod 61 and the second clamping rod 62, which further ensures the clamping of the device.

[0056] The back ends of the first clamping rod 61 and the second clamping rod 62 are rotatably mounted with movable wheels 64. During the movement of the drive wheel 66, the movable wheels 64 rotate synchronously to ensure that the angles of the first clamping rod 61 and the second clamping rod 62 remain fixed. An elastic element 67 is installed between the first clamping rod 61 and the drive rod 65.

[0057] Both sides of the lifting mechanism 5 are provided with connecting mechanisms 8. The connecting mechanism 8 includes a first support rod 81 and a second support rod 82. The first support rod 81 and the second support rod 82 are rotatably connected to the extension rod 52. The two extension rods 52 are rotatably mounted with a central shaft 83. The upper and lower ends of the central shaft 83 are respectively rotatably mounted with mounting parts 84. In the initial state, the angle between the first support rod 81 and the second support rod 82 is set towards the hollow cylinder 72.

[0058] A limiting plate 85 is fixedly installed on the mounting component 84, and a torsion spring 86 is sleeved on the central shaft 83. The torsion spring 86 is respectively abutted against the limiting plate 85 and the mounting component 84. During the rotation of the jacking pipe body 1, the corresponding two first support rods 81 and second support rods 82 rotate about the central shaft 83, so that the device has a support point during the rotation, ensuring the stability of the device.

[0059] During the rotation of the first support rod 81 and the second support rod 82, the torsion spring 86 deforms. After the angle of the jacking pipe body 1 is adjusted, the mechanism resets under the reaction of the torsion spring 86, which facilitates the secondary use of the device.

[0060] The lower end of the hollow cylinder 72 is connected to a connecting cylinder 73. The mounting part 84 and the connecting cylinder 73 are connected by a bellows 87. The bellows 87 is a sealed chamber filled with gas. During the rotation of the two first support rods 81 and the second support rod 82 about the central axis 83, the bellows 87 adapts to the expansion and contraction, which makes the synchronous movement force of the first support rods 81 and the second support rod 82 on both sides uniform. The elasticity of the expansion and contraction of the bellows 87 is matched with the elasticity of the torsion spring 86, which further ensures the smoothness of the device's reset after use.

[0061] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0062] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pipe jacking angle adjusting device for pipe jacking construction, comprising a pipe jacking body (1) and a hoisting mechanism (2), characterized in that, The lifting mechanism (2) is provided with a connecting piece (21), the lower end of the connecting piece (21) is fixedly installed with a connecting rod (22), the lower end of the connecting rod (22) is fixedly installed with a mounting block (24), the outer periphery of one side of the mounting block (24) is fixedly installed with a first connecting ring (25), one side of the first connecting ring (25) is fixedly installed with two first sliding rails (26), and the side, away from the first connecting ring (25), of the mounting block (24) is provided with a first sliding groove (27). The lifting mechanism (2) is provided with an angle adjusting mechanism (4), the angle adjusting mechanism (4) comprises a second connecting ring (41), the second connecting ring (41) is fixedly installed with two second sliding rails (42) on one side, and a first sliding block (46) is fixedly installed on the inner wall of the second connecting ring (41). The lower end of the angle adjusting mechanism (4) is provided with a lifting mechanism (5). The lower end of the lifting mechanism (5) is provided with a clamping mechanism (6), the clamping mechanism (6) comprises a first clamping rod (61), a second clamping rod (62) is fixedly installed on one side of the upper end of the first clamping rod (61), a driving rod (65) is rotatably installed on the outer side of the first clamping rod (61), and a driving wheel (66) is rotatably installed on one side of the driving rod (65).

2. The pipe jacking angle adjusting device for pipe jacking construction according to claim 1, characterized in that, The outer periphery of the connecting rod (22) is fixedly installed with a protective ring (23), the groove wall of the first sliding groove (27) is fixedly installed with a rack (28), and the outer periphery of the mounting block (24) is fixedly installed with a positioning block (29).

3. The pipe jacking angle adjusting device for pipe jacking construction according to claim 2, characterized in that, The angle adjusting mechanism (4) further comprises an electromechanical box (43) fixedly installed on the outer side of the second connecting ring (41), an angle sensor (44) is fixedly installed on the upper end of the electromechanical box (43), an avoiding hole (45) is formed in the second connecting ring (41) and communicates with the electromechanical box (43), a first motor (47) is fixedly installed on the lower end of the second connecting ring (41), a gear (48) is fixedly installed on the upper end of the first motor (47), and the gear (48) is meshedly installed in the rack (28).

4. The pipe jacking angle adjusting device for pipe jacking construction according to claim 3, characterized in that, The lifting mechanism (5) comprises four telescopic sleeves (51), the outer periphery of the telescopic sleeve (51) is fixedly installed with a limiting ring (53), four limiting rings (53) are slidably installed in the first sliding rail (26) and the second sliding rail (42) respectively, the lower end of the telescopic sleeve (51) is fixedly installed with an extension rod (52), the lower end of the extension rod (52) is fixedly installed with a rotating block (54), and the rotating block (54) is rotatably connected with the first clamping rod (61).

5. The pipe jacking angle adjusting device for pipe jacking construction according to claim 4, characterized in that, The first slide rail (26) and the second slide rail (42) are connected with an arc-shaped rod (55), one end of the arc-shaped rod (55) is rotatably connected with a connecting rod (56), one side of the connecting rod (56) is rotatably connected with a fixed sleeve (57), the fixed sleeve (57) is provided with a second sliding groove (58), the second sliding groove (58) is slidably connected with a second sliding block (59), and the second sliding block (59) is rotatably connected with the connecting rod (56) close to the second connecting ring (41).

6. The pipe jacking angle adjusting device for pipe jacking construction according to claim 5, characterized in that, The first clamping rod (61) and the second clamping rod (62) are rotatably connected with a moving wheel (64) at the back end.

7. The pipe jacking angle adjusting device for pipe jacking construction according to claim 6, characterized in that, The first clamping rod (61) and the drive rod (65) are rotatably connected with an elastic member (67), the first clamping rod (61) and the second clamping rod (62) are rotatably connected with a drive wheel (66) through a belt transmission structure (69).

8. The pipe jacking angle adjusting device for pipe jacking construction according to claim 7, characterized in that, The lifting mechanism (2) is provided with a stabilizing mechanism (7) at the lower end, the stabilizing mechanism (7) comprises a hydraulic rod (71) fixedly installed at the lower end of the mounting block (24), the lower end of the hydraulic rod (71) is fixedly connected with a hollow cylinder (72), the hollow cylinder (72) is fixedly connected with the fixed sleeve (57), and the lower end of the hollow cylinder (72) is connected with a communication cylinder (73).

9. The pipe jacking angle adjusting device for pipe jacking construction according to claim 8, characterized in that, The lifting mechanism (5) is provided with a connecting mechanism (8) on both sides, the connecting mechanism (8) comprises a first supporting rod (81) and a second supporting rod (82), the first supporting rod (81) and the second supporting rod (82) are rotatably connected with the extension rod (52), and the two extension rods (52) are rotatably connected with a middle shaft (83).

10. The pipe jacking angle adjusting device for pipe jacking construction according to claim 9, characterized in that, The mounting piece (84) is fixedly connected with a limiting plate (85), the middle shaft (83) is rotatably connected with a torsional spring (86), and the torsional spring (86) is rotatably connected with the limiting plate (85) and the mounting piece (84). The mounting piece (84) and the communication cylinder (73) are rotatably connected with a corrugated pipe (87).

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