An angle installation adjusting device for a foundation steel diagonal brace and a method thereof

Abstract

The application provides a kind of angle installation adjusting device of foundation pit steel diagonal bracing and method thereof.The angle installation adjusting device of foundation pit steel diagonal bracing includes adjusting mechanism, the adjusting mechanism for adjusting steel pipe angle is installed on the surface of support mechanism, the side wall of guide rail is used to avoid the fixed mechanism that steel pipe slides, the side wall of guide rail is rotatably connected with a plurality of fixed plates, the side wall of fixed plate is installed with arc-shaped brake pad, and the side wall of brake pad is installed with a plurality of protrusions for increasing friction, the side wall of fixed mechanism is installed with connecting mechanism for facilitating the sliding of steel pipe inside guide rail without deviation, the sliding connection is between the side wall of ball and steel pipe, the inner part of slide bar is slidably connected with brake pad and support rod, and the end of slide bar is abutted by limiting rod.The angle installation adjusting device of foundation pit steel diagonal bracing and method thereof provided by the application has the advantages of quickly and accurately inserting steel pipe into soil and improving construction quality.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation pit steel diagonal braces, and in particular to an angle installation and adjustment device for a foundation pit steel diagonal brace and a method thereof. Background Art

[0002] Grouting steel pipe diagonal bracing is a new type of support method used to ensure the safety and stability of foundation pits and shorten the construction period of underground projects. The grouting steel pipe diagonal bracing within the pit forms a system with the surrounding enclosure, fully utilizing its mechanical properties. Compared with conventional reinforced concrete ring beam horizontal support systems, grouting steel pipe diagonal bracing can shorten construction time and save significant costs in concrete pouring, curing, and demolition. This support system is also relatively low-cost, shortening construction time while ensuring underground construction safety.

[0003] When carrying out the construction of grouting steel pipe oblique support, a pulling machine is required to insert the steel pipe obliquely into the soil. However, due to the height and weight of the steel pipe, when the steel pipe is tilted and aligned with the insertion position, the insertion angle and insertion position of the steel pipe are mainly observed and controlled by the naked eye, resulting in a large deviation when the steel pipe is inserted into the soil, reducing the quality of the steel oblique support; and in the process of the steel pipe being tilted in the air, under the action of gravity, one end of the steel pipe is easy to slide downward and insert into the soil, and is difficult to pull out, which increases the workload and difficulty of the workers.

[0004] Therefore, it is necessary to provide a new angle installation and adjustment device for foundation pit steel diagonal braces and a method thereof to solve the above technical problems. Summary of the Invention

[0005] The technical problem solved by the present invention is to provide a device and method for adjusting the angle of foundation pit steel diagonal braces, which can quickly and accurately insert steel pipes into soil and improve construction quality.

[0006] In order to solve the above technical problems, the angle installation and adjustment device of the foundation pit steel diagonal brace provided by the present invention includes: an adjusting mechanism for adjusting the angle of the steel pipe, the adjusting mechanism is installed on the surface of the supporting mechanism, the adjusting mechanism includes a base frame, one end of the base frame is fixedly connected to a support for providing support for the guide rail, the side wall of the support is rotatably connected to the guide rail, and the two ends of the second hydraulic rod for adjusting the angle of the steel pipe are rotatably connected to the guide rail and the base frame respectively; the side wall of the guide rail is used to prevent the steel pipe from sliding, the fixing mechanism includes a fixing plate, the side wall of the fixing plate is connected to a steel wire rope for driving the fixing plate to rotate, and the bottom end of the fixing mechanism is installed with a driving mechanism for driving the steel wire rope to rotate; the side wall of the guide rail is rotatably connected to Multiple fixed plates are connected, and the side walls of the fixed plates are installed with brake pads with arc-shaped side walls, and the side walls of the brake pads are installed with multiple protrusions for increasing friction, and the brake pads and the protrusions are in contact with the side walls of the steel pipe; the side walls of the fixing mechanism are installed with a connecting mechanism for facilitating the steel pipe to slide inside the guide rail without deflection, and the connecting mechanism includes a sliding rod, one end of the sliding rod is rolling-connected to a ball, and the ball is slidingly connected to the side wall of the steel pipe; the sliding rod is slidably connected to the brake pad and the inside of the support rod, and the side wall of the support rod is threadedly connected to the limit rod, and the limit rod is in contact with one end of the sliding rod; the side wall of the sliding rod is covered with a spring for resetting the ball, and one end of the spring is connected to the inner side wall of the support rod.

[0007] Preferably, the supporting mechanism includes a mixing pile, which is inserted into the interior of the soil layer to reinforce it, and a concrete layer is poured on the top of the mixing pile and the surface of the soil layer.

[0008] Preferably, the adjustment mechanism also includes a base, a plurality of universal wheels are installed on the bottom surface of the base, the universal wheels are placed on the surface of the concrete layer, a plurality of first hydraulic rods for adjusting the height of the guide rails are installed on the surface of the base, and the top end of the first hydraulic rod is fixedly connected to the base frame.

[0009] Preferably, the fixing mechanism further includes a conduit, a plurality of conduits are installed on the side wall of the guide rail, and the interior of the conduit is slidably connected to the steel wire rope; a plurality of rollers are installed at the bottom end of the guide rail, and the steel wire rope is wound around the side walls of the rollers.

[0010] Preferably, the driving mechanism includes a box body, which is fixed to the bottom end of the guide rail, and the interior of the box body is rotatably connected to a fixed shaft and a second gear, and the side wall of the fixed shaft is fixedly connected to the roller and the first gear, and the first gear is meshed with the second gear; a third hydraulic rod is installed inside the box body, and one end of the third hydraulic rod is connected to a rack, and the rack is meshed with the second gear.

[0011] Preferably, the first gear and the second gear are perpendicular to each other, and the diameter of the first gear is larger than the diameter of the second gear.

[0012] Preferably, the fixing mechanism also includes a rotating shaft, the side wall of the fixing plate is fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the inside of the guide rail; the side wall of the rotating shaft is fitted with a torsion spring, and the two ends of the torsion spring are respectively connected to the rotating shaft and the side wall of the guide rail.

[0013] Preferably, the sidewall of the protrusion on the surface of the brake pad is in an arc-shaped structure, and the ball is arranged at the location where the brake pad has the largest thickness.

[0014] A method for installing and adjusting the angle of a foundation pit steel diagonal brace, comprising the following steps:

[0015] Step 1: After the construction of the mixing pile is completed, a concrete layer is poured on the surface of the mixing pile and the soil layer. The mixing pile increases the stability and firmness of the concrete layer, prevents the concrete layer from settling rapidly during the insertion of the steel pipe, and prevents the steel pipe from being dislocated when driven into the soil layer.

[0016] The cam is pressed against the support rail and the guide rail is moved up and down by the hydraulic cylinder to move the cam, so that the cam is in a state of rotation and the cam is rotated. The ball shrinks to facilitate the sliding of the ball over the side wall of the steel pipe; as the fixed plate rotates, the brake pad is squeezed against the side wall of the steel pipe, and the side wall of the brake pad is curved, which increases the contact area of ​​the brake pad against the steel pipe. A plurality of protrusions with curved side walls are installed on the surface of the brake pad, and the protrusions are in contact with the steel pipe, and the sliding direction of the steel pipe is opposite to the bending direction of the protrusions, thereby further increasing the friction between the steel pipe and the brake pad; the brake pads at both ends of the guide rail are staggered to improve the stability of the steel pipe inside the guide rail and prevent the steel pipe from sliding inside the guide rail; one end of the steel pipe is fixed by a sling and the other end is fixed by the guide rail to prevent the steel pipe from sliding downward, and by controlling the operation of the second hydraulic rod, the second hydraulic rod drives the guide rail and the steel pipe to rotate, adjusts the insertion angle of the steel pipe, and the second hydraulic rod is extended and retracted to align the steel pipe with the insertion position, thereby preventing the insertion position of the steel pipe from being offset;

[0017] Step 3: After the position angle adjustment of the steel pipe is completed, the top end of the steel pipe is connected to the drawing machine, the third hydraulic rod is opened, and the third hydraulic rod drives the roller to rotate. The steel wire rope is loosened to rotate the fixed plate and the brake pad, and the brake pad is separated from the steel pipe; the limit rod is rotated to make the limit rod contact one end of the slide rod to prevent the slide rod from sliding inside the support rod; the third hydraulic rod is then opened to contract the steel wire rope, so that the fixed plate rotates and drives the ball to contact and squeeze the side wall of the steel pipe, thereby fixing the steel pipe inside the guide rail;

[0018] Step 4: Use a driving machine to drive the steel pipe into the soil. The steel pipe slides along the guide rail. The sliding of the steel pipe pushes the ball bearing to roll inside the slide rod, reducing the resistance of the steel pipe sliding downward. At the same time, the ball bearing fixes the steel pipe to prevent the steel pipe from being offset when inserted into the soil layer, thereby improving the quality of the steel diagonal brace.

[0019] Compared with related technologies, the angle installation and adjustment device for foundation pit steel diagonal braces and the method thereof provided by the present invention have the following beneficial effects:

[0020] The present invention provides an angle installation and adjustment device for a foundation pit steel diagonal brace and a method thereof, wherein when the steel pipe is driven into the soil layer, a crane is used to place the bottom end of the steel pipe into the interior of the guide rail; the driving mechanism is turned on to drive the roller to rotate, so that the steel wire rope is wrapped around the side wall of the roller; the steel wire rope drives the fixed plate to rotate, and as the fixed plate rotates, the brake pad is squeezed against the side wall of the steel pipe, and the side wall of the brake pad is curved, which increases the contact area of ​​the brake pad against the steel pipe; a plurality of protrusions with curved side walls are installed on the surface of the brake pad, the protrusions are in contact with the steel pipe, and the sliding direction of the steel pipe is opposite to the bending direction of the protrusions, thereby further increasing the friction between the steel pipe and the brake pad; the brake pads at both ends of the guide rail are staggered to improve the stability of the steel pipe inside the guide rail and prevent the steel pipe from sliding inside the guide rail; one end of the steel pipe is fixed by a sling, and the other end is fixed by the guide rail to prevent the steel pipe from sliding downward The cam is pressed against the guide rail and the push rod is pressed against the guide rail, and the push rod is pressed against the guide rail to prevent the push rod from sliding into the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of the angle installation and adjustment device and method for the foundation pit steel diagonal brace provided by the present invention;

[0022] Figure 2 forFigure 1 The schematic diagram of the steel pipe being drilled into the soil layer is shown;

[0023] Figure 3 for Figure 1 Schematic diagram of the internal structure of the guide rail shown;

[0024] Figure 4 for Figure 1 The schematic diagram of the steel pipe being placed into the guide rail is shown;

[0025] Figure 5 for Figure 4 Schematic diagram of the connection between the steel pipe and the ball shown;

[0026] Figure 6 for Figure 5 An enlarged schematic diagram of the structure at point A is shown;

[0027] Figure 7 for Figure 1 A top view of the guide rail structure shown;

[0028] Figure 8 for Figure 7 An enlarged schematic diagram of the structure at point B is shown;

[0029] Figure 9 for Figure 7 An enlarged schematic diagram of the structure at position C is shown;

[0030] Figure 10 for Figure 8 A side view of the bump structure shown;

[0031] Figure 11 for Figure 2 Schematic diagram of the internal structure of the driving mechanism shown.

[0032] Numbers in the figure: 1. Soil layer, 2. Support mechanism, 21. Mixing pile, 22. Steel pipe, 23. Concrete layer, 24. Lifting rope, 3. Adjusting mechanism, 31. Base, 32. First hydraulic rod, 33. Universal wheel, 34. Second hydraulic rod, 35. Support, 36. Guide rail, 37. Underframe, 4. Fixing mechanism, 41. Fixing plate, 42. Brake pad, 43. Steel wire rope, 44. Conduit, 45. Roller, 46. Bump, 47. Rotating shaft, 48. Torsion spring, 5. Connecting mechanism, 51. Ball, 52. Support rod, 53. Sliding rod, 54. Spring, 55. Limiting rod, 6. Driving mechanism, 61. Box, 62. Fixed shaft, 63. First gear, 64. Second gear, 65. Third hydraulic rod, 66. Rack. DETAILED DESCRIPTION

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] Please refer toFigures 1-11 in, Figure 1 A schematic structural diagram of the angle installation and adjustment device and method for the foundation pit steel diagonal brace provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of the structure at point A is shown; Figure 3 for Figure 2 An enlarged schematic diagram of the structure at point B is shown; Figure 4 for Figure 2 A top view of the internal structure of the water distribution pipe and the fixed pipe is shown; Figure 5 for Figure 2 An enlarged schematic diagram of the structure at position C is shown; Figure 6 for Figure 2 Schematic diagram of optical fiber distribution shown; Figure 7 The schematic diagram of the circuit structure provided by the present invention. The angle installation and adjustment device of the foundation pit steel diagonal brace includes: an adjustment mechanism 3, the adjustment mechanism 3 for adjusting the angle of the steel pipe 22 is installed on the surface of the support mechanism 2, the adjustment mechanism 3 includes a base frame 37, one end of the base frame 37 is fixedly connected to a support 35 for providing support for the guide rail 36, the side wall of the support 35 is rotatably connected to the guide rail 36, and the two ends of the second hydraulic rod 34 for adjusting the angle of the steel pipe 22 are rotatably connected to the guide rail 36 and the base frame 37 respectively; the adjustment mechanism 3 also includes a base 31, the bottom surface of the base 31 is equipped with a plurality of universal joints. Wheel 33, the universal wheel 33 is placed on the surface of the concrete layer 23, and a plurality of first hydraulic rods 32 for adjusting the height of the guide rail 36 are installed on the surface of the base 31, and the top of the first hydraulic rod 32 is fixedly connected to the base frame 37; the base 31 is moved to a suitable position through the universal wheel 33, and the device is connected to an external power supply. The guide rail 36 is driven up and down by the operation of the first hydraulic rod 32, so that the height of the guide rail 36 is appropriate, which is convenient for placing the steel pipe 22 into the interior of the guide rail 36, so that the guide rail 36 provides support for the steel pipe 22.

[0035] The driving mechanism 6 includes a box body 61 fixed to the bottom end of the guide rail 36, a fixed shaft 62 and a second gear 64 rotatably connected inside the box body 61, the side wall of the fixed shaft 62 is fixedly connected with the roller 45 and a first gear 63, the first gear 63 is engaged with the second gear 64; a third hydraulic rod 65 is installed inside the box body 61, one end of the third hydraulic rod 65 is connected with a rack 66, the rack 66 is engaged with the second gear 64; the side wall of the guide rail 36 is provided with a fixing mechanism 4 for preventing the steel pipe 22 from sliding, the fixing mechanism 4 includes a fixed plate 41, the side wall of the fixed plate 41 is connected with a steel wire rope 43 for driving the fixed plate 41 to rotate, and the bottom end of the fixing mechanism 4 is provided with a driving mechanism 6 for driving the steel wire rope 43 to rotate; the side wall of the guide rail 36 is rotatably connected with a plurality of fixed plates 41, the side wall of the fixed plate 41 is provided with an arc-shaped brake pad 42, the side wall of the brake pad 42 is provided with a plurality of protrusions 46 for increasing friction, and the brake pad 42 and the protrusions 46 abut against the side wall of the steel pipe 22; the fixing mechanism 4 further includes a conduit 44, a plurality of conduits 44 are installed on the side wall of the guide rail 36, the inside of the conduit 44 is slidably connected with the steel wire rope 43; a plurality of rollers 45 are installed at the bottom end of the guide rail 36, and the steel wire rope 43 is wound around the side wall of the roller 45; the steel pipe 22 is hoisted above the guide rail 36 by a crane, and the bottom end of the steel pipe 22 is placed inside the guide rail 36, the bottom end of the guide rail 36 is arc-shaped, which facilitates the steel pipe 22 to enter the inside of the guide rail 36 and prevents the steel pipe 22 from shaking randomly inside the guide rail 36; the limiting rod 55 is rotated to separate the limiting rod 55 from the sliding rod 53, the third hydraulic rod 65 is opened, the third hydraulic rod 65 drives the rack 66 to move, the rack 66 drives the second gear 64, the first gear 63, the fixed shaft 62, and the roller 45 to rotate, so that the steel wire rope 43 is wound around the side wall of the roller 45; the first gear 63 and the second gear 64 are perpendicular to each other, which facilitates the second gear 64 to drive the first gear 63 to rotate, while preventing the steel wire rope 43 from easily retracting; and the diameter of the first gear 63 is greater than the diameter of the second gear 64, so as to facilitate the second gear 64 to push the first gear 63 to rotate more easily; the steel wire rope 43 drives the fixed plate 41 to rotate, the fixed plate 41 drives the brake pad 42 to rotate, when the brake pad 42 and the roller 51 contact the steel pipe 22, the roller 51 and the sliding rod 53 are pressed by the steel pipe 22, the sliding rod 53 enters the inside of the support rod 52, the roller 51 is retracted, and the roller 51 slides from the side wall of the steel pipe 22.As the fixing plate 41 rotates, the brake pad 42 squeezes the side wall of the steel pipe 22. The side wall of the brake pad 42 is curved, which increases the contact area of ​​the brake pad 42 against the steel pipe 22. A plurality of protrusions 46 with curved side walls are installed on the surface of the brake pad 42. The protrusions 46 are in contact with the steel pipe 22, and the sliding direction of the steel pipe 22 is opposite to the bending direction of the protrusions 46, thereby further increasing the friction between the steel pipe 22 and the brake pad 42. The brake pads 42 are staggered at both ends of the guide rail 36. The stability of the steel pipe 22 within the guide rail 36 is improved to prevent the steel pipe 22 from sliding within the guide rail 36. One end of the steel pipe 22 is fixed by the sling 24, and the other end is fixed by the guide rail 36 to prevent the steel pipe 22 from sliding downward. By controlling the operation of the second hydraulic rod 34, the second hydraulic rod 34 drives the guide rail 36 and the steel pipe 22 to rotate, adjusting the insertion angle of the steel pipe 22. The second hydraulic rod 34 is extended and retracted to align the steel pipe 22 with the insertion position, preventing the insertion position of the steel pipe 22 from shifting.

[0036] The side wall of the fixing mechanism 4 is installed with a connecting mechanism 5 for facilitating the sliding of the steel pipe 22 inside the guide rail 36 without deviation. The connecting mechanism 5 includes a sliding rod 53, one end of which is rollingly connected to the ball 51, and the ball 51 is slidingly connected to the side wall of the steel pipe 22; the sliding rod 53 is slidingly connected to the inside of the brake pad 42 and the support rod 52, and the side wall of the support rod 52 is threadedly connected to the limit rod 55, and the limit rod 55 abuts against one end of the sliding rod 53; the side wall of the sliding rod 53 is covered with a spring 54 for resetting the ball 51, and one end of the spring 54 is connected to the inner side wall of the support rod 52. When the position adjustment of the steel pipe 22 is completed, the limit rod 55 is rotated so that the limit rod 55 contacts one end of the slide rod 53 to prevent the slide rod 53 from sliding inside the support rod 52; then the third hydraulic rod 65 is opened to shrink the steel wire rope 43, so that the fixed plate 41 rotates to drive the ball 51 to contact and squeeze the side wall of the steel pipe 22, and fix the steel pipe 22 inside the guide rail 36; the steel pipe 22 is driven into the soil by a pulling machine, and the steel pipe 22 slides along the guide rail 36. The sliding of the steel pipe 22 pushes the ball 51 to roll inside the slide rod 53, reducing the resistance of the steel pipe 22 to sliding downward. At the same time, the ball 51 fixes the steel pipe 22 to prevent the steel pipe 22 from being offset when inserted into the soil layer 1, thereby improving the quality of the steel diagonal brace.

[0037] The side wall of the protrusion 46 on the surface of the brake pad 42 is in an arc-shaped structure, in order to increase the friction between the protrusion 46 and the steel pipe 22 and prevent the steel pipe 22 from sliding inside the guide rail 36; the ball 51 is arranged at the place where the brake pad 42 has the largest thickness, in order to facilitate the ball 51 to contact the side wall of the steel pipe 22, and the steel pipe 22 is fixed inside the guide rail 36.

[0038] The support mechanism 2 includes a mixing pile 21, which is inserted into the soil layer 1 to reinforce it. A concrete layer 23 is poured on the top of the mixing pile 21 and the surface of the soil layer 1. After the construction of the mixing pile 21 is completed, the concrete layer 23 is poured on the mixing pile 21 and the surface of the soil layer 1. The mixing pile 21 increases the stability and firmness of the concrete layer 23, prevents the concrete layer 23 from settling rapidly during the insertion of the steel pipe 22, and prevents the steel pipe 22 from being misaligned when it is driven into the soil layer 1.

[0039] The fixing mechanism 4 also includes a rotating shaft 47, and the side wall of the fixing plate 41 is fixedly connected to the rotating shaft 47, and the rotating shaft 47 is rotatably connected to the inside of the guide rail 36; the side wall of the rotating shaft 47 is fitted with a torsion spring 48, and the two ends of the torsion spring 48 are respectively connected to the rotating shaft 47 and the side wall of the guide rail 36; when the steel wire rope 43 drives the fixing plate 41 to rotate toward the direction of the steel pipe 22, the fixing plate 41 drives the rotating shaft 47 to rotate inside the guide rail 36, and at the same time, the rotation of the rotating shaft 47 drives the torsion spring 48 to twist and tighten; when the steel wire rope 43 is loosened, the torsion spring 48 resets and drives the rotating shaft 47 and the fixing plate 41 to rotate and reset, so as to facilitate the next use.

[0040] A method for installing and adjusting the angle of a foundation pit steel diagonal brace, comprising the following steps:

[0041] Step 1: After the construction of the mixing pile 21 is completed, a concrete layer 23 is poured on the surface of the mixing pile 21 and the soil layer 1. The mixing pile 21 increases the stability and firmness of the concrete layer 23, prevents the concrete layer 23 from settling rapidly during the insertion of the steel pipe 22, and prevents the steel pipe 22 from being misplaced when driven into the soil layer 1.

[0042] Step 2: Move the base 31 to a suitable position through the universal wheel 33, connect the device to an external power source, and drive the guide rail 36 to move up and down through the operation of the first hydraulic rod 32, so that the guide rail 36 is at an appropriate height; hoist the steel pipe 22 to the top of the guide rail 36 through a crane, and put the bottom end of the steel pipe 22 into the inside of the guide rail 36. The bottom end of the guide rail 36 is curved, which facilitates the steel pipe 22 to enter the inside of the guide rail 36 and prevents the steel pipe 22 from shaking freely inside the guide rail 36; turn the limit rod 55 , so that the limiting rod 55 is separated from the sliding rod 53, and the third hydraulic rod 65 is opened. The third hydraulic rod 65 drives the rack 66 to move, and the rack 66 drives the second gear 64, the first gear 63, the fixed shaft 62, and the roller 45 to rotate, so that the wire rope 43 is wound around the side wall of the roller 45; the wire rope 43 drives the fixed plate 41 to rotate, and the fixed plate 41 drives the rotating shaft 47 to rotate inside the guide rail 36. At the same time, the rotation of the rotating shaft 47 drives the torsion spring 48 to twist and tighten. The fixing plate 41 drives the brake pad 42 to rotate. When the brake pad 42 and the ball 51 come into contact with the steel pipe 22, the ball 51 and the slide rod 53 are squeezed by the steel pipe 22, and the slide rod 53 enters the interior of the support rod 52, causing the ball 51 to contract, making it easier for the ball 51 to slide over the side wall of the steel pipe 22. As the fixing plate 41 rotates, the brake pad 42 squeezes the side wall of the steel pipe 22. The side wall of the brake pad 42 is curved, increasing the contact area of ​​the brake pad 42 against the steel pipe 22. A plurality of protrusions 46 with curved side walls (as shown in the attached figure) are installed on the surface of the brake pad 42. Figure 8 , Attachment Figure 9 and attached Figure 10 As shown in FIG, the protrusion 46 contacts the steel pipe 22, and the sliding direction of the steel pipe 22 is opposite to the bending direction of the protrusion 46, thereby further increasing the friction between the steel pipe 22 and the brake pad 42; the brake pad 42 is staggered at both ends of the guide rail 36 (as shown in FIG. Figure 7 As shown in the figure, the stability of the steel pipe 22 inside the guide rail 36 is improved to prevent the steel pipe 22 from sliding inside the guide rail 36; one end of the steel pipe 22 is fixed by the sling 24, and the other end is fixed by the guide rail 36 to prevent the steel pipe 22 from sliding downward, and by controlling the operation of the second hydraulic rod 34, the second hydraulic rod 34 drives the guide rail 36 and the steel pipe 22 to rotate, and adjusts the insertion angle of the steel pipe 22 (as shown in the figure). Figure 1 , Attachment Figure 3 As shown), the second hydraulic rod 34 is extended and retracted to align the steel pipe 22 with the insertion position to prevent the insertion position of the steel pipe 22 from being offset;

[0043] Step 3: After the position angle adjustment of the steel pipe 22 is completed, the top end of the steel pipe 22 is connected to the pulling machine, the third hydraulic rod 65 is opened, and the third hydraulic rod 65 drives the roller 45 to rotate, the steel wire rope 43 is loosened, and the torsion spring 48 operates to push the rotating shaft 47 to rotate in the opposite direction, so that the fixing plate 41 and the brake pad 42 rotate and reset, and the brake pad 42 is separated from the steel pipe 22 (as shown in the attached figure). Figure 4 As shown); rotate the limiting rod 55 so that the limiting rod 55 contacts one end of the sliding rod 53 to prevent the sliding rod 53 from sliding inside the support rod 52; then open the third hydraulic rod 65 to shrink the steel wire rope 43, so that the fixing plate 41 rotates and drives the ball 51 to contact and squeeze the side wall of the steel pipe 22, fixing the steel pipe 22 inside the guide rail 36 (as shown in the attached figure). Figure 5 , Attachment Figure 6 shown);

[0044] Step 4: Use a pulling machine to drive the steel pipe 22 into the soil (as shown in the attached Figure 2 As shown), the steel pipe 22 slides along the guide rail 36, and the sliding of the steel pipe 22 pushes the ball 51 to roll inside the slide rod 53, reducing the resistance of the steel pipe 22 sliding downward. At the same time, the ball 51 fixes the steel pipe 22 to prevent the steel pipe 22 from being offset when inserted into the soil layer 1, thereby improving the quality of the steel brace.

[0045] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An angle installation and adjustment device for foundation pit steel diagonal bracing, characterized in that: include: An adjusting mechanism (3) for adjusting the angle of the steel pipe (22) is mounted on the surface of the supporting mechanism (2), the adjusting mechanism (3) comprising a base frame (37), one end of the base frame (37) being fixedly connected to a support (35) for providing support for the guide rail (36), a side wall of the support (35) being rotatably connected to the guide rail (36), and two ends of a second hydraulic rod (34) for adjusting the angle of the steel pipe (22) being rotatably connected to the guide rail (36) and the base frame (37); The side wall of the guide rail (36) is used to prevent the steel pipe (22) from sliding. The fixing mechanism (4) includes a fixing plate (41). The side wall of the fixing plate (41) is connected to a steel wire rope (43) for driving the fixing plate (41) to rotate, and the bottom end of the fixing mechanism (4) is installed with a driving mechanism (6) for driving the steel wire rope (43) to rotate; the side wall of the guide rail (36) is rotatably connected to a plurality of fixing plates (41), the side wall of the fixing plate (41) is installed with a brake pad (42) with an arc-shaped side wall, and the side wall of the brake pad (42) is installed with a plurality of protrusions (46) for increasing friction, and the brake pad (42) and the protrusions (46) are in contact with the side wall of the steel pipe (22); The side wall of the fixing mechanism (4) is installed with a connecting mechanism (5) for facilitating the sliding of the steel pipe (22) inside the guide rail (36) without deviation. The connecting mechanism (5) includes a slide rod (53), one end of which is rollingly connected to a ball (51), and the ball (51) is slidably connected to the side wall of the steel pipe (22); the slide rod (53) is slidably connected to the inside of the brake pad (42) and the support rod (52), the side wall of the support rod (52) is threadedly connected to a limiting rod (55), and the limiting rod (55) abuts against one end of the slide rod (53); the side wall of the slide rod (53) is covered with a spring (54) for returning the ball (51), and one end of the spring (54) is connected to the inner side wall of the support rod (52).

2. The angle installation and adjustment device for foundation pit steel diagonal bracing according to claim 1 is characterized in that: The support mechanism (2) comprises a mixing pile (21), the mixing pile (21) being inserted into the interior of the soil layer (1) to reinforce it, and a concrete layer (23) being poured on the top of the mixing pile (21) and the surface of the soil layer (1).

3. The angle installation and adjustment device for foundation pit steel diagonal bracing according to claim 2 is characterized in that: The adjustment mechanism (3) further comprises a base (31), a bottom surface of the base (31) being mounted with a plurality of universal wheels (33), the universal wheels (33) being placed on the surface of the concrete layer (23), a surface of the base (31) being mounted with a plurality of first hydraulic rods (32) for adjusting the height of the guide rail (36), and the top ends of the first hydraulic rods (32) being fixedly connected to the base frame (37).

4. The angle installation and adjustment device for foundation pit steel diagonal bracing according to claim 1 is characterized in that: The fixing mechanism (4) further comprises a conduit (44), a plurality of conduits (44) being installed on the side wall of the guide rail (36), the interior of the conduit (44) being slidably connected to the steel wire rope (43); a plurality of rollers (45) being installed at the bottom end of the guide rail (36), and the steel wire rope (43) being wound around the side wall of the roller (45).

5. The angle installation and adjustment device for foundation pit steel diagonal bracing according to claim 4 is characterized in that: The driving mechanism (6) includes a box (61), the box (61) is fixed to the bottom end of the guide rail (36), the interior of the box (61) is rotatably connected to a fixed shaft (62) and a second gear (64), the side wall of the fixed shaft (62) is fixedly connected to the roller (45) and the first gear (63), and the first gear (63) is meshed with the second gear (64); a third hydraulic rod (65) is installed inside the box (61), one end of the third hydraulic rod (65) is connected to a rack (66), and the rack (66) is meshed with the second gear (64).

6. The angle installation and adjustment device for foundation pit steel diagonal bracing according to claim 5 is characterized in that: The first gear (63) and the second gear (64) are perpendicular to each other, and the diameter of the first gear (63) is larger than the diameter of the second gear (64).

7. The angle installation and adjustment device for foundation pit steel diagonal bracing according to claim 1 is characterized in that: The fixing mechanism (4) further comprises a rotating shaft (47), the side wall of the fixing plate (41) being fixedly connected to the rotating shaft (47), and the rotating shaft (47) being rotatably connected to the interior of the guide rail (36); a torsion spring (48) is sleeved on the side wall of the rotating shaft (47), and the two ends of the torsion spring (48) are respectively connected to the side wall of the rotating shaft (47) and the guide rail (36).

8. The angle installation and adjustment device for foundation pit steel diagonal bracing according to claim 1 is characterized in that: The side wall of the protrusion (46) on the surface of the brake pad (42) is in an arc-shaped structure, and the ball (51) is arranged at the location where the thickness of the brake pad (42) is the largest.

9. The operating method of the angle installation and adjustment device for foundation pit steel diagonal braces according to any one of claims 1 to 8, comprising the following steps: Step 1: After the construction of the mixing pile (21) is completed, a concrete layer (23) is poured on the surface of the mixing pile (21) and the soil layer (1). The mixing pile (21) increases the stability and firmness of the concrete layer (23), prevents the concrete layer (23) from settling rapidly during the insertion of the steel pipe (22), and prevents the steel pipe (22) from being dislocated when driven into the soil layer (1); Step 2: Move the base (31) to a suitable position through the universal wheel (33), connect the device to an external power source, and drive the guide rail (36) to move up and down through the operation of the first hydraulic rod (32), so that the guide rail (36) is at an appropriate height; hoist the steel pipe (22) to the top of the guide rail (36) through a crane, and put the bottom end of the steel pipe (22) into the inside of the guide rail (36). The bottom end of the guide rail (36) is curved, which facilitates the steel pipe (22) to enter the inside of the guide rail (36) and prevents the steel pipe (22) from shaking freely inside the guide rail (36); rotate the limit rod (55) to separate the limit rod (55) from the slide rod (53), and open The third hydraulic rod (65) is opened, and the third hydraulic rod (65) drives the rack (66) to move, and the rack (66) drives the second gear (64), the first gear (63), the fixed shaft (62), and the roller (45) to rotate, so that the wire rope (43) is wound around the side wall of the roller (45); the wire rope (43) drives the fixed plate (41) to rotate, so that the fixed plate (41) drives the brake pad (42) to rotate, and when the brake pad (42) and the ball (51) contact the steel pipe (22), the ball (51) and the slide rod (53) are squeezed by the steel pipe (22), and the slide rod (53) enters the support rod (52 ) inside, causing the ball (51) to shrink, making it easier for the ball (51) to slide over the side wall of the steel pipe (22); as the fixing plate (41) rotates, the brake pad (42) squeezes the side wall of the steel pipe (22), and the side wall of the brake pad (42) is arc-shaped, increasing the contact area of ​​the brake pad (42) against the steel pipe (22); a plurality of protrusions (46) with arc-shaped side walls are installed on the surface of the brake pad (42), and the protrusions (46) are in contact with the steel pipe (22), and the sliding direction of the steel pipe (22) is opposite to the bending direction of the protrusions (46), thereby further increasing the friction between the steel pipe (22) and the brake pad (42); the guide rail The brake pads (42) at both ends of the (36) are staggered to improve the stability of the steel pipe (22) inside the guide rail (36) and prevent the steel pipe (22) from sliding inside the guide rail (36); one end of the steel pipe (22) is fixed by the sling (24) and the other end is fixed by the guide rail (36) to prevent the steel pipe (22) from sliding downward, and by controlling the operation of the second hydraulic rod (34), the second hydraulic rod (34) drives the guide rail (36) and the steel pipe (22) to rotate, adjusts the insertion angle of the steel pipe (22), and the second hydraulic rod (34) is extended and retracted to align the steel pipe (22) with the insertion position, thereby preventing the insertion position of the steel pipe (22) from being offset; Step 3: After the position angle adjustment of the steel pipe (22) is completed, the top end of the steel pipe (22) is connected to the pulling machine, the third hydraulic rod (65) is opened, and the third hydraulic rod (65) drives the roller (45) to rotate, the steel wire rope (43) is loosened to rotate the fixed plate (41) and the brake pad (42), and the brake pad (42) is separated from the steel pipe (22); the limiting rod (55) is rotated to make the limiting rod (55) contact one end of the slide rod (53) to prevent the slide rod (53) from sliding inside the support rod (52); the third hydraulic rod (65) is opened again to shrink the steel wire rope (43), so that the fixed plate (41) rotates and drives the ball (51) to contact and squeeze the side wall of the steel pipe (22), thereby fixing the steel pipe (22) inside the guide rail (36); Step 4: Use a driving machine to drive the steel pipe (22) into the soil. The steel pipe (22) slides along the guide rail (36). The sliding of the steel pipe (22) pushes the ball (51) to roll inside the slide rod (53), reducing the resistance of the steel pipe (22) sliding downward. At the same time, the ball (51) fixes the steel pipe (22), preventing the steel pipe (22) from being offset when inserted into the soil layer (1), thereby improving the quality of the steel brace.

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