A steel casing positioning device for steel sheet pile hole construction for pipe jacking construction

Abstract

The present invention belongs to the technical field of building construction, and specifically is a steel casing positioning device for steel sheet pile boring construction for pipe jacking construction, comprising a guide rail, a connecting rod, a cylinder and a supporting mechanism; the cross section of the guide rail is I-shaped, and a slider is slidably connected to the guide rail, and the slider is adapted to the shape of the cross section of the guide rail, and one end face of the slider is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to a connecting block; the connecting block is connected to both sides of the outer ring of the cylinder, and a supporting mechanism is arranged on the inner wall of the cylinder, and the supporting mechanism is close to the upper port of the cylinder; the guide rail is fixed on one side of the boring position, and then the cylinder is dragged, and the cylinder drives the slider to move through the connecting rod, and the slider moves along the guide rail; the supporting mechanism arranged in the cylinder constrains the steel sheet pile, so that the steel sheet pile is driven into the ground below the ground along the supporting mechanism perpendicular to the ground, thereby ensuring the accuracy of the extension direction of the steel sheet pile boring, controlling the verticality of the boring, and keeping the boring machine in position as much as possible.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, in particular to a steel casing positioning device for steel sheet pile hole guiding construction used in jacking construction. Background Art

[0002] Steel sheet piles are a commonly used sheet pile cofferdam and were first used in bridge foundation construction. They have the advantages of light weight, high strength, tight locking, good water tightness, and high safety. In addition, they are simple to construct and have a short construction period. Therefore, steel sheet piles are widely used in deep foundation pit support.

[0003] In some construction sites, when excavating earth, some of the ground soil is soft and loose, and the pedestal is located at a certain height below the ground. The corresponding pedestal and some pier construction require the use of steel sheet pile cofferdam construction. In addition, under special geological conditions such as soft and loose strata, the insertion of steel sheet piles is more difficult.

[0004] For example, when encountering some hard strata, it is difficult to rely solely on a pile driver to drive the steel sheet piles into the ground and penetrate the hard strata. At the same time, the steel sheet piles will be pressed against the hard soil layer, which will cause the steel sheet piles to tilt or the lower end of the steel sheet piles to shift, affecting the subsequent mutual engagement of the steel sheet piles and the supporting strength of the cofferdam formed by the steel sheet piles.

[0005] To this end, the present invention provides a steel casing positioning device for steel sheet pile hole construction used in jacking construction. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a steel casing positioning device for steel sheet pile hole construction for jacking construction described in the present invention comprises a guide rail, a connecting rod, a cylinder and a supporting mechanism; the cross-section of the guide rail is I-shaped, and a slider is slidably connected to the guide rail, the slider is adapted to the shape of the cross-section of the guide rail, one end face of the slider is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to a connecting block; the connecting block is connected to both sides of the outer ring of the cylinder, and a supporting mechanism is arranged on the inner wall of the cylinder, and the supporting mechanism is close to the upper end of the cylinder; the guide rail is fixed on one side of the hole-drawing position, and then the cylinder is dragged, and the cylinder drives the slider to move through the connecting rod, and the slider moves along the guide rail; the supporting mechanism arranged in the cylinder constrains the steel sheet pile, so that the steel sheet pile is driven into the ground below the ground along the supporting mechanism perpendicular to the ground, thereby ensuring the accuracy of the extension direction of the steel sheet pile hole-drawing, controlling the verticality of the hole-drawing, and keeping the hole-drawing machine in position as much as possible.

[0008] Preferably, the supporting mechanism comprises a crossbeam and a positioning block; the crossbeam is symmetrically fixed on the inner side wall of the cylinder, a positioning groove is provided on the crossbeam, and the positioning block is embedded in the positioning groove; the positioning block comprises a convex end, a connecting plate and a concave end; the shape of one end of the convex end is adapted to the shape of the inner concave surface of the steel sheet pile, the other end face of the convex end is fixedly connected to one end of the connecting plate, the other end of the connecting plate is fixedly connected to the other end face of the concave end, and one end face of the concave end is adapted to the shape of the convex surface of the steel sheet pile; the connecting plate is embedded in the positioning groove; the positioning block squeezes and clamps the steel sheet pile in the cylinder, constrains the angle and position of the steel sheet pile, and ensures the accuracy of the extension of the steel sheet pile lead hole. At the same time, the shape of each positioning block is set so that when constructing the next steel sheet pile, it is only necessary to reverse the direction of the positioning block, or exchange the positions of the two positioning blocks, so that the steel sheet piles in the alternating directions can be clamped, which has high flexibility, and the positioning block can be customized according to the specifications and dimensions of the steel sheet piles, and it is only necessary to ensure that the size of the connecting plate remains unchanged, which has strong adaptability.

[0009] Preferably, an oil replenishing lubrication unit is provided on the concave end; the oil replenishing lubrication unit includes an oil pipe and an extrusion block; a sliding hole is provided in the concave surface of the other end of the concave end, the inner bottom surface of the sliding hole is connected to the oil pipe, one end of the oil pipe is threadedly fixed to the upper surface of the concave end, oil channels are provided on both sides of the sliding hole, one end of the oil channel is connected to the sliding hole, and the other end of the oil channel extends to the convex surfaces on both sides of the concave end; one end of the extrusion block is slidably connected to the top surface of the sliding hole through a spring, a T-shaped hole is provided in the extrusion block, one end of the T-shaped hole is connected to the oil pipe, The two side ports of the T-shaped hole are connected with the oil channel; the raised surface of the steel sheet pile squeezes the squeezing block, and the T-shaped hole on the squeezing block is connected with the oil channel, and the lubricating oil in the oil pipe flows into the oil channel and is sprayed on the meshing points of the steel sheet piles and the surface of the steel sheet piles to lubricate them, which is convenient for the subsequent extraction of the steel sheet piles, and reduces the corrosion of the steel guard piles by moisture in the soil, thereby extending the service life of the steel guard piles; and oil spraying in the oil channel, the lubricating oil will only be sprayed when the steel sheet piles are squeezed against the squeezing block, so that the lubricating oil can be used economically and avoid waste.

[0010] Preferably, a sliding layer is provided on one side of the oil passage. The sliding layer is in a U shape, and arc-shaped holes are provided at both ends of the sliding layer. The arc-shaped holes communicate with the sliding layer, and the ends of the arc-shaped holes penetrate through the outlet position of the oil passage. A sealing unit is provided between the arc-shaped holes and the sliding layer; the sealing unit includes a rubber plug and a pulling rope; the end of the extrusion block extends to the right-angle position of the sliding layer and is fixedly connected to one end of the pulling rope. The other end of the pulling rope is fixedly connected to one end of the rubber plug. A through hole is provided in the middle position of the rubber plug, and the inner diameter of the through hole is larger than the inner diameter of the oil passage. The other end of the rubber plug is slidably connected to the end position of the arc-shaped hole through a tension spring; the surrounding environment of the steel sheet pile during use is all mud. When the device is in use, the mud or sundries of the steel sheet pile may adhere to the inside of the outlet of the oil passage. Therefore, by providing a sealing unit, the mud and sundries are blocked outside; when the extrusion block retracts into the sliding hole, the rear end of the extrusion block pulls the pulling rope, and the pulling rope pulls the rubber plug to move. The through hole on the rubber plug communicates with the oil passage. At this time, the oil passage is opened, and the lubricating oil can be ejected smoothly; when the extrusion block resets, the tension spring pulls the rubber plug to reset, and the rubber plug seals the inner side of the outlet end of the oil passage, realizing the protection of the inside of the oil passage, preventing external mud or particles from filling the deep part of the oil passage and affecting the normal use of the oil passage next time.

[0011] Preferably, the cylinder body includes arc-shaped plates and connecting plates; the arc-shaped plates are symmetrically arranged, and connecting plates are fixedly connected to the relative edges of the arc-shaped plates respectively. Fixing holes are provided at the upper and lower ends of the connecting plates. Convex parts are provided on the opposite side walls of two adjacent connecting plates, and a connecting block is clamped between the convex parts. Grooves are provided on both sides of the connecting block, and the convex parts are embedded in the grooves; the cylinder body is divided into two semi-circular arc-shaped plates, and the connecting block and the connecting plate are designed as a detachable structure, which is convenient for the transfer and transportation of the device. At the same time, the structure is simple and convenient for installation and disassembly.

[0012] Preferably, a fixing mechanism is provided inside the connecting block; the fixing mechanism includes a piston block, a gear and a top block; a rectangular groove is provided inside the connecting block at the position where it is connected to the connecting block. The other end of the connecting rod vertically rotates through to the rectangular groove and is fixedly connected to the gear. The gear is rotatably connected in the rectangular groove. Hydraulic grooves are provided on the upper and lower sides of the rectangular groove. The top block is hermetically slidably connected to the hydraulic groove through a spring. One end of the top block is fixedly connected with a limiting block, and the limiting block is embedded between two adjacent teeth of the gear. Sealing grooves are provided on both sides of the hydraulic groove, and the sealing grooves communicate with the hydraulic groove and penetrate through to the groove. The piston block is hermetically slidably connected to the sealing groove through a compression spring; after the bolt is tightened on the connecting plate, the connecting plate presses the connecting block, and the convex part presses the piston block in the groove. The piston block pumps the hydraulic oil in the sealing groove into the hydraulic groove, and then pushes down the top block. The limiting block on the top block is embedded between two adjacent teeth of the gear to fix the gear. At the same time, the swing between the connecting rod and the cylinder body is also fixed, making the cylinder body more stable, thereby improving the stability between the positioning block and the steel sheet pile and improving the accuracy and stability of driving the steel sheet pile into the soil.

[0013] Preferably, spring grooves are symmetrically provided on both sides of the hydraulic groove, the spring grooves are connected to the hydraulic groove, the spring grooves are close to the rectangular groove, and a fixing pin is provided in the spring groove; the fixing pin is slidably connected in the spring groove through a spring, and the inner end tip of the fixing pin is embedded in the groove provided on the outer surface of the top block. In the initial state, the length of the inner surface of the protruding groove of the fixing pin is smaller than the length of the inner surface of the protruding groove of the piston block; the piston block drums the hydraulic oil into the hydraulic groove, and the limit block is embedded between the two teeth. At this time, the length of the protruding groove of the piston block is the same as the length of the inner surface of the protruding groove of the fixing pin, and the convex part is squeezed into the groove, and the inner end of the fixing pin is embedded in the groove on the surface of the top block, so as to further fix the top block and further improve the stability between the cylinder body and the connecting rod.

[0014] Preferably, a fastener is provided between the slider and the guide rail; the fastener includes a plate body, a bolt and a pointed cone; the plate body is attached and extruded on the rear side wall of the guide rail, the bolt passes through the plate body and is threadedly connected to the rear end face of the slider, and a plurality of pointed cones are evenly fixed on the front wall of the guide rail, the tip of the pointed cone passes through the rotation connection position between the slider and the connecting rod, and the tip of the pointed cone is embedded in a concave point opened on the outer surface of the rotating shaft at one end of the connecting rod; the fastener is tightened to fix the slider on the guide rail, thereby improving the stability of the cylinder body, and the sliding hole moves backward relative to the guide rail, and the tip of the pointed cone on the guide rail is embedded in the concave point on the rotating shaft, at this time, the rotation between the slider and the connecting rod is fixed, thereby improving the stability between the connecting rod and the guide rail, thanks to the stability of the cylinder body.

[0015] Preferably, connecting blocks are provided on both side walls at both ends of the connecting block, one end of the connecting block is fixedly connected to the connecting block, and the other end of the connecting block is slidably connected to a connecting groove provided on the side wall of the connecting plate; by providing the connecting blocks, when the cylinder is assembled, it is first pre-positioned together by the connecting blocks, which facilitates the later bolts to penetrate the connecting plate and fix the cylinder.

[0016] Preferably, a reinforcing rod is provided on the cross beam, which is horizontally placed inside the cylinder, one end of the reinforcing rod is welded to the inner wall of the cylinder, and the other end of the reinforcing rod is fixedly connected to the side wall of the cross beam; by arranging the reinforcing rod, the cross beam is supported, the bending resistance of the cross beam is improved, and the extrusion constraint force of the positioning block on the steel sheet pile is enhanced.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The steel casing positioning device for steel sheet pile boring construction for pipe jacking construction described in the present invention fixes a guide rail on one side of the boring position, and then drags the cylinder body, which drives the slider to move through the connecting rod, and the slider moves along the guide rail; the support mechanism arranged in the cylinder body constrains the steel sheet piles, so that the steel sheet piles are driven into the ground below the ground along the support mechanism perpendicular to the ground, ensuring the accuracy of the extension direction of the steel sheet pile boring, controlling the verticality of the boring, and keeping the boring machine in position as much as possible.

[0019] 2. The steel casing positioning device for steel sheet pile hole construction for pipe jacking construction described in the present invention squeezes and clamps the steel sheet piles in the cylinder body through the positioning blocks, constrains the angle and position of the steel sheet piles, and ensures the accuracy of the extension of the steel sheet pile hole. At the same time, the shape of each positioning block is set so that when constructing the next steel sheet pile, it is only necessary to reverse the direction of the positioning block, or exchange the positions of two positioning blocks, so that the steel sheet piles in the alternating directions can be clamped. It has high flexibility, and the positioning blocks can be customized according to the specifications of the steel sheet piles. It only needs to ensure that the size of the connecting plate remains unchanged, and it has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the positioning device of the present invention;

[0022] Figure 2 is a cross-sectional view of a positioning block in the present invention;

[0023] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0024] Figure 4 It is a matching diagram of the connecting block and the connecting plate in the present invention;

[0025] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0026] Figure 6 yes Figure 4 A partial enlarged view of point C in the middle;

[0027] Figure 7 It is a matching diagram of the guide rail and the slider in the present invention;

[0028] Figure 8 It is a diagram of the coordination of the reinforcing rod and the cross beam in the present invention.

[0029] In the figure: guide rail 1, connecting rod 2, cylinder 3, slider 4, connecting block 5, cross beam 6, positioning block 7, positioning groove 8, convex end 9, connecting plate 10, concave end 11, oil pipe 12, extrusion block 13, sliding hole 14, oil channel 15, T-shaped hole 16, sliding layer 17, arc hole 18, rubber plug 19, pull rope 20, through hole 21, arc plate 22, connecting plate 23, fixing hole 24, convex part 25, groove 26, piston block 27, gear 28, top block 29, rectangular groove 30, hydraulic groove 31, limit block 32, sealing groove 33, fixing pin 34, slot 35, plate body 36, pointed cone 37, concave point 38, connecting block 39, connecting groove 40, reinforcing rod 41. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] Embodiment 1:

[0032] Reference Figure 1 , a steel casing positioning device for steel sheet pile hole construction for jacking construction, comprising a guide rail 1, a connecting rod 2, a cylinder 3 and a supporting mechanism; the cross-section of the guide rail 1 is I-shaped, and a slider 4 is slidably connected to the guide rail 1, and the slider 4 is adapted to the cross-sectional shape of the guide rail 1, and one end face of the slider 4 is rotatably connected to one end of the connecting rod 2, and the other end of the connecting rod 2 is rotatably connected to a connecting block 5; the connecting block 5 is connected to both sides of the outer ring of the cylinder 3, and a supporting mechanism is arranged on the inner side wall of the cylinder 3, and the supporting mechanism is close to the upper end of the cylinder 3; the guide rail 1 is fixed on one side of the hole-guiding position, and then the cylinder 3 is dragged, and the cylinder 3 drives the slider 4 to move through the connecting rod 2, and the slider 4 moves along the guide rail 1; the supporting mechanism arranged in the cylinder 3 constrains the steel sheet pile, so that the steel sheet pile is driven into the ground below the ground along the supporting mechanism perpendicular to the ground, so as to ensure the accuracy of the extension direction of the steel sheet pile hole-guiding, control the verticality of the hole-guiding, and keep the hole-guiding machine in position as much as possible.

[0033] Reference Figure 2 The supporting mechanism includes a crossbeam 6 and a positioning block 7; the crossbeam 6 is symmetrically fixed to the inner wall of the cylinder 3, a positioning groove 8 is provided on the crossbeam 6, and the positioning block 7 is embedded in the positioning groove 8; the positioning block 7 includes a convex end 9, a connecting plate 10 and a concave end 11; the shape of one end of the convex end 9 is adapted to the inner concave surface shape of the steel sheet pile, the other end face of the convex end 9 is fixed to one end of the connecting plate 10, the other end of the connecting plate 10 is fixed to the other end face of the concave end 11, and one end face of the concave end 11 is adapted to the convex surface shape of the steel sheet pile; the connecting The plate 10 is embedded in the positioning groove 8; the positioning block 7 squeezes and clamps the steel sheet pile in the cylinder 3, constrains the angle and position of the steel sheet pile, and ensures the accuracy of the extension of the steel sheet pile guide hole. At the same time, the shape of each positioning block 7 is set so that when constructing the next steel sheet pile, it is only necessary to reverse the direction of the positioning block 7, or exchange the positions of two positioning blocks 7, so that the steel sheet piles in the alternating directions can be clamped. It has high flexibility, and the positioning block 7 can be customized according to the specifications of the steel sheet pile. It only needs to ensure that the size of the connecting plate 10 remains unchanged, and it has strong adaptability.

[0034] Reference Figure 2-3, a supplementary oil lubrication unit is provided on the concave end 11; the supplementary oil lubrication unit includes an oil pipe 12 and a pressing block 13; a sliding hole 14 is opened in the concave surface at the other end of the concave end 11, the inner bottom surface of the sliding hole 14 is communicated with one end of the oil pipe 12, one end of the oil pipe 12 is threadedly fixed on the upper surface of the concave end 11, oil channels 15 are opened on both sides of the sliding hole 14, one port of the oil channel 15 is communicated with the sliding hole 14, and the other end of the oil channel 15 extends to the convex surfaces on both sides of the concave end 11; one end of the pressing block 13 is slidably connected to the inner top surface of the sliding hole 14 through a spring, a T-shaped hole 16 is opened in the pressing block 13, one port of the T-shaped hole 16 is communicated with the oil pipe 12, and both side ports of the T-shaped hole 16 are communicated with the oil channels 15; the convex surface of the steel sheet pile presses the pressing block 13, the T-shaped hole 16 on the pressing block 13 is communicated with the oil channels 15, the lubricating oil in the oil pipe 12 flows into the oil channels 15, and is sprayed on the meshing position points of the steel sheet piles and the surface of the steel sheet piles to lubricate them, which is convenient for later extraction of the steel sheet piles, and reduces the corrosion of the steel protection pile by the moisture in the soil, and prolongs the service life of the steel protection pile; and when oil is sprayed in the oil channels 15, the lubricating oil will only be sprayed when the steel sheet pile presses the pressing block 13, so that the lubricating oil can be saved and wasted is avoided.

[0035] Refer to Figure 2-3 , a sliding layer 17 is opened on one side of the oil channel 15, the sliding layer 17 is in a C shape, arc-shaped holes 18 are opened at both ends of the sliding layer 17, the arc-shaped holes 18 are communicated with the sliding layer 17, the end of the arc-shaped hole 18 penetrates through the outlet position of the oil channel 15, and a blocking unit is provided between the arc-shaped hole 18 and the sliding layer 17; the blocking unit includes a rubber plug 19 and a pulling rope 20; the end of the pressing block 13 extends to the right-angle position of the sliding layer 17 and is fixedly connected to one end of the pulling rope 20, the other end of the pulling rope 20 is fixedly connected to one end of the rubber plug 19, a through hole 21 is opened in the middle position of the rubber plug 19, the inner diameter of the through hole 21 is larger than the inner diameter of the oil channel 15, and the other end of the rubber plug 19 is slidably connected to the end position of the arc-shaped hole 18 through a pulling spring; the surrounding of the steel sheet pile use environment is all soil, when the device is in use, the soil or sundries of the steel sheet pile may adhere to the inside of the outlet of the oil channel 15, for this reason, by setting the blocking unit, the soil and sundries are blocked outside; the pressing block 13 retracts into the sliding hole 14, the rear end of the pressing block 13 pulls the pulling rope 20, the pulling rope 20 pulls the rubber plug 19 to move, the through hole 21 on the rubber plug 19 is communicated with the oil channel 15, at this time the oil channel 15 is opened, and the lubricating oil can be sprayed out smoothly; when the pressing block 13 resets, the pulling spring pulls the rubber plug 19 to reset, and the rubber plug 19 blocks the inner side of the outlet end of the oil channel 15, realizing the protection of the inside of the oil channel 15, preventing the outside soil or particles from filling deep into the oil channel 15 and affecting the normal use of the oil channel 15 next time.

[0036] Refer to Figure 1 and Figure 4-5The cylinder 3 includes an arc plate 22 and a connecting plate 23; the arc plates 22 are symmetrically arranged, and the opposite edges of the arc plates 22 are fixedly connected to the connecting plates 23. Fixing holes 24 are provided at the upper and lower ends of the connecting plates 23. Protrusions 25 are provided on the opposite side walls of two adjacent connecting plates 23, and the connecting blocks 5 are clamped between the protrusions 25. Grooves 26 are provided on both sides of the connecting blocks 5, and the protrusions 25 are embedded in the grooves 26; the cylinder 3 is divided into the arc plate 22 in half, and the connecting blocks 5 and the connecting plates 23 are designed to be detachable, which is convenient for the reloading and consignment of the device. At the same time, the structure is simple and easy to install and disassemble.

[0037] Reference Figure 4-5 , a fixing mechanism is provided in the connecting block 5; the fixing mechanism includes a piston block 27, a gear 28 and a top block 29; a rectangular groove 30 is provided inside the connecting block 5 at the connection position with the connecting block 5, the other end of the connecting rod 2 rotates vertically to penetrate the rectangular groove 30 and is fixedly connected to the gear 28, the gear 28 is rotatably connected in the rectangular groove 30, hydraulic grooves 31 are provided on the upper and lower sides of the rectangular groove 30, the top block 29 is slidably connected in the hydraulic groove 31 through a spring seal, one end of the top block 29 is fixedly connected to a limit block 32, the limit block 32 is embedded between two adjacent teeth on the gear 28, sealing grooves 33 are provided on both sides of the hydraulic groove 31, and the sealing groove 33 is connected to the hydraulic groove 31 , the sealing groove 33 penetrates into the groove 26, and the piston block 27 is slidably connected in the sealing groove 33 through the compression spring seal; after the connecting plate 23 is bolted, the connecting plate 23 squeezes the connecting block 5, and the convex portion 25 squeezes the piston block 27 in the groove 26, and the piston block 27 pumps the hydraulic oil in the sealing groove 33 into the hydraulic groove 31, and then pushes down the top block 29, and the limit block 32 on the top block 29 is embedded between two adjacent teeth on the gear 28 to fix the gear 28, and also fixes the swing between the connecting rod 2 and the cylinder 3, making the cylinder 3 more stable, thereby improving the stability between the positioning block 7 and the steel sheet pile, and improving the accuracy and stability of the steel sheet pile driven into the soil.

[0038] Reference Figure 6, spring grooves are symmetrically provided on both sides of the hydraulic groove 31, the spring grooves are connected to the hydraulic groove 31, the spring grooves are close to the rectangular groove 30, and a fixing pin 34 is provided in the spring groove; the fixing pin 34 is slidably connected in the spring groove by a spring, and the inner end tip of the fixing pin 34 is embedded in the card groove 35 provided on the outer surface of the top block 29. In the initial state, the length of the fixing pin 34 protruding from the inner surface of the groove 26 is less than the length of the piston block 27 protruding from the inner surface of the groove 26; the piston block 27 drums the hydraulic oil into the hydraulic groove 31, and the limit block 32 is embedded between the two teeth. At this time, the length of the piston block 27 protruding from the groove 26 is the same as the length of the inner surface of the groove 26 protruding from the fixing pin 34, and the convex portion 25 is squeezed into the groove 26, and the inner end of the fixing pin 34 is embedded in the card groove 35 on the surface of the top block 29, so as to further fix the top block 29 and improve the stability between the cylinder 3 and the connecting rod 2 again.

[0039] Reference Figure 7 , a fastener is provided between the slider 4 and the guide rail 1; the fastener includes a plate body 36, a bolt and a pointed cone 37; the plate body 36 is attached and extruded on the rear side wall of the guide rail 1, the bolt passes through the plate body 36 and is threadedly connected to the rear end surface of the slider 4, and a plurality of pointed cones 37 are evenly fixed on the front wall of the guide rail 1, the tip of the pointed cone 37 passes through the rotation connection position between the slider 4 and the connecting rod 2, and the tip of the pointed cone is embedded in the concave point 38 opened on the outer surface of the rotating shaft at one end of the connecting rod 2; tighten the fastener to fix the slider 4 on the guide rail 1, improve the stability of the cylinder 3, and the sliding hole 14 moves backward relative to the guide rail 1, the tip of the pointed cone 37 on the guide rail 1 is embedded in the concave point 38 on the rotating shaft, at this time, the rotation between the slider 4 and the connecting rod 2 is fixed, thereby improving the stability between the connecting rod 2 and the guide rail 1, thanks to the stability provided by the cylinder 3.

[0040] Reference Figure 5 , connecting blocks 39 are provided on both side walls at both ends of the connecting block 5, one end of the connecting block 39 is fixedly connected to the connecting block 5, and the other end of the connecting block 39 is slidably connected to the connecting groove 40 provided on the side wall of the connecting plate 23; by providing the connecting block 39, the cylinder 3 is first pre-positioned together by the connecting block 39 during assembly, which is convenient for the later bolts to penetrate the connecting plate 23 and fix the cylinder 3.

[0041] Embodiment 2:

[0042] Reference Figure 8 , compared with Example 1, as another embodiment of the present invention, a reinforcing rod 41 is provided on the cross beam 6, and the reinforcing rod is horizontally placed in the cylinder 3, one end of the reinforcing rod is welded to the inner wall of the cylinder 3, and the other end of the reinforcing rod is fixed to the side wall of the cross beam 6; by arranging the reinforcing rod, the cross beam 6 is supported, the bending resistance of the cross beam 6 is improved, and the extrusion constraint force of the positioning block 7 on the steel sheet pile is enhanced.

[0043] Working principle: Fix the guide rail 1 on one side of the hole-guiding position, then drag the cylinder 3, which drives the slider 4 to move through the connecting rod 2, and the slider 4 moves along the guide rail 1; the support mechanism set in the cylinder 3 constrains the steel sheet piles, so that the steel sheet piles are driven into the ground perpendicularly along the support mechanism, ensuring the accuracy of the extension direction of the steel sheet pile hole-guiding, controlling the verticality of the hole-guiding, and keeping the hole-guiding machine in position as much as possible;

[0044] The positioning block 7 squeezes and clamps the steel sheet pile in the cylinder 3, constrains the angle and position of the steel sheet pile, and ensures the accuracy of the extension of the steel sheet pile lead hole. At the same time, the shape of each positioning block 7 is set so that when constructing the next steel sheet pile, it is only necessary to reverse the direction of the positioning block 7, or exchange the positions of two positioning blocks 7, so that the steel sheet piles in the alternating directions can be clamped. The flexibility is high, and the positioning block 7 can be customized according to the specifications and sizes of the steel sheet piles. It only needs to ensure that the size of the connecting plate 10 does not change, and the adaptability is strong.

[0045] The convex surface of the steel sheet pile squeezes the squeezing block 13, and the T-shaped hole 16 on the squeezing block 13 is connected to the oil channel 15. The lubricating oil in the oil pipe 12 flows into the oil channel 15 and is sprayed on the meshing position of the steel sheet piles and the surface of the steel sheet piles to lubricate them, which is convenient for the subsequent extraction of the steel sheet piles and reduces the corrosion of the steel guard piles by moisture in the soil, thereby extending the service life of the steel guard piles; and the oil is sprayed in the oil channel 15. The lubricating oil will be sprayed only when the steel sheet piles are squeezing the squeezing block 13, so that the lubricating oil can be used economically and avoid waste;

[0046] The surroundings of the steel sheet pile use environment are all covered with mud. When the device is in use, mud or debris on the steel sheet pile may adhere to the outlet of the oil passage 15. For this reason, a blocking unit is provided to block the mud and debris outside; the extrusion block 13 is retracted into the sliding hole 14, and the rear end of the extrusion block 13 pulls the pull rope 20, and the pull rope 20 pulls the rubber plug 19 to move, and the through hole 21 on the rubber plug 19 is connected with the oil passage 15. At this time, the oil passage 15 is opened, and the lubricating oil can be sprayed out smoothly; when the extrusion block 13 is reset, the tension spring pulls the rubber plug 19 to reset, and the rubber plug 19 is blocked at the inner side of the outlet end of the oil passage 15, so as to protect the inside of the oil passage 15 and prevent external mud or particles from filling the deep of the oil passage 15, which affects the next normal use of the oil passage 15;

[0047] The cylinder 3 is divided into arc-shaped plates 22 in half, and the connecting block 5 and the connecting plate 23 are designed to be detachable, which is convenient for the reloading and shipping of the device. At the same time, the structure is simple and easy to install and disassemble;

[0048] After the bolts are tightened on the connecting plate 23, the connecting plate 23 squeezes the connecting block 5, and the convex part 25 squeezes the piston block 27 in the concave groove 26. The piston block 27 pumps the hydraulic oil in the sealing groove 33 into the hydraulic groove 31, and then pushes down the top block 29. The limit block 32 on the top block 29 is embedded between two adjacent teeth on the gear 28 to fix the gear 28. At the same time, the swing between the connecting rod 2 and the cylinder 3 is also fixed, making the cylinder 3 more stable, thereby improving the stability between the positioning block 7 and the steel sheet pile, and improving the accuracy and stability of the steel sheet pile driven into the soil;

[0049] The piston block 27 pushes the hydraulic oil into the hydraulic groove 31, and the limit block 32 is embedded between the two teeth. At this time, the length of the piston block 27 protruding from the groove 26 is the same as the length of the fixing pin 34 protruding from the inner surface of the groove 26. The convex part 25 is squeezed into the groove 26, and the inner end of the fixing pin 34 is embedded in the groove 35 on the surface of the top block 29, so as to further fix the top block 29 and further improve the stability between the cylinder 3 and the connecting rod 2.

[0050] Tighten the fasteners to fix the slider 4 on the guide rail 1, improve the stability of the cylinder 3, and the slide hole 14 moves backward relative to the guide rail 1, and the tip of the cone 37 on the guide rail 1 is embedded in the concave point 38 on the rotating shaft. At this time, the rotation between the slider 4 and the connecting rod 2 is fixed, thereby improving the stability between the connecting rod 2 and the guide rail 1, which benefits from the stability of the cylinder 3; by providing the connecting block 39, the cylinder 3 is first pre-positioned together through the connecting block 39 during assembly, which is convenient for the later bolts to pass through the connecting plate 23 to fix the cylinder 3.

[0051] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A steel casing positioning device for steel sheet pile hole construction for pipe jacking construction, characterized in that: It includes a guide rail (1), a connecting rod (2), a cylinder body (3) and a support mechanism; the cross-section of the guide rail (1) is in the shape of a Chinese character '工' (I-shaped), a slider (4) is slidably connected to the guide rail (1), the shape of the slider (4) is adapted to the cross-section of the guide rail (1), one end face of the slider (4) is rotatably connected to one end of the connecting rod (2), and the other end of the connecting rod (2) is rotatably connected to a connecting block (5); the connecting block (5) is connected to both sides of the outer circle of the cylinder body (3), and a support mechanism is arranged on the inner side wall of the cylinder body (3), and the support mechanism is close to the upper port of the cylinder body (3). The support mechanism includes a cross beam (6) and a positioning block (7); the cross beam (6) is symmetrically fixed on the inner side wall of the cylinder body (3), a positioning groove (8) is opened on the cross beam (6), and the positioning block (7) is embedded in the positioning groove (8); the positioning block (7) includes a convex end (9), a connecting plate (10) and a concave end (11); one end shape of the convex end (9) is adapted to the concave surface shape of the steel sheet pile, the other end face of the convex end (9) is fixedly connected to one end of the connecting plate (10), the other end of the connecting plate (10) is fixedly connected to the other end face of the concave end (11), and one end face of the concave end (11) is adapted to the convex surface shape of the steel sheet pile; the connecting plate (10) is embedded in the positioning groove (8). A supplementary oil lubrication unit is arranged on the concave end (11); the supplementary oil lubrication unit includes an oil pipe (12) and an extrusion block (13); a sliding hole (14) is opened in the other concave surface of the concave end (11), the inner bottom surface of the sliding hole (14) is communicated with one end of the oil pipe (12), one end of the oil pipe (12) is threadedly fixed on the upper surface of the concave end (11), oil channels (15) are opened on both sides of the sliding hole (14), one port of the oil channel (15) is communicated with the sliding hole (14), and the other end of the oil channel (15) extends to the convex surfaces on both sides of the concave end (11); one end of the extrusion block (13) is slidably connected to the inner top surface of the sliding hole (14) through a spring, a T-shaped hole (16) is opened in the extrusion block (13), one port of the T-shaped hole (16) is communicated with the oil pipe (12), and the two side ports of the T-shaped hole (16) are communicated with the oil channels (15).

2. A steel casing positioning device for steel sheet pile hole construction for pipe jacking construction according to claim 1, characterized in that: A sliding layer (17) is opened on one side of the oil channel (15), the sliding layer (17) is in the shape of a '匚' (C-shaped), arc-shaped holes (18) are opened at both ends of the sliding layer (17), the arc-shaped holes (18) are communicated with the sliding layer (17), the end of the arc-shaped hole (18) penetrates through the outlet position of the oil channel (15), and a sealing unit is arranged between the arc-shaped hole (18) and the sliding layer (17); the sealing unit includes a rubber plug (19) and a pull rope (20); the end of the extrusion block (13) extends to the right-angle position of the sliding layer (17) and is fixedly connected to one end of the pull rope (20), the other end of the pull rope (20) is fixedly connected to one end of the rubber plug (19), a through hole (21) is opened in the middle position of the rubber plug (19), the inner diameter of the through hole (21) is larger than the inner diameter of the oil channel (15), and the other end of the rubber plug (19) is slidably connected to the end position of the arc-shaped hole (18) through a tension spring.

3. The steel casing positioning device for steel sheet pile hole construction for pipe jacking construction according to claim 1 is characterized by: The cylinder (3) comprises an arc-shaped plate (22) and a connecting plate (23); the arc-shaped plates (22) are symmetrically arranged, and opposite edges of the arc-shaped plates (22) are fixedly connected to the connecting plates (23); fixing holes (24) are provided at upper and lower ends of the connecting plates (23); convex portions (25) are provided on opposite side walls of two adjacent connecting plates (23); the connecting blocks (5) are clamped between the convex portions (25); grooves (26) are provided on two sides of the connecting blocks (5), and the convex portions (25) are embedded in the grooves (26).

4. A steel casing positioning device for steel sheet pile hole construction for pipe jacking construction according to claim 3, characterized in that: The connecting block (5) is provided with a fixing mechanism; the fixing mechanism comprises a piston block (27), a gear (28) and a top block (29); a rectangular groove (30) is provided inside the connecting block (5) at a position connected to the connecting block (5); the other end of the connecting rod (2) rotates vertically to penetrate the rectangular groove (30) and is fixedly connected to the gear (28); the gear (28) is rotatably connected in the rectangular groove (30); hydraulic grooves (31) are provided on upper and lower sides of the rectangular groove (30); the top block (29) is slidably connected in the hydraulic groove (31) through a spring seal; one end of the top block (29) is fixedly connected to a limit block (32); the limit block (32) is embedded between two adjacent teeth on the gear (28); sealing grooves (33) are provided on both sides of the hydraulic groove (31); the sealing grooves (33) are communicated with the hydraulic groove (31); the sealing grooves (33) penetrate into the groove (26); the piston block (27) is slidably connected in the sealing groove (33) through a compression spring seal.

5. A steel casing positioning device for steel sheet pile hole construction for pipe jacking construction according to claim 4, characterized in that: The hydraulic groove (31) is symmetrically provided with spring grooves on both sides. The spring grooves are connected to the hydraulic groove (31). The spring grooves are close to the rectangular groove (30). A fixing pin (34) is provided in the spring groove. The fixing pin (34) is slidably connected in the spring groove through a spring. The inner end tip of the fixing pin (34) is embedded in a clamping groove (35) provided on the outer surface of the top block (29). In the initial state, the length of the fixing pin (34) protruding from the inner surface of the groove (26) is less than the length of the piston block (27) protruding from the inner surface of the groove (26).

6. The steel casing positioning device for steel sheet pile hole construction for pipe jacking construction according to claim 1 is characterized by: A fastener is provided between the slider (4) and the guide rail (1); the fastener comprises a plate (36), a bolt and a pointed cone (37); the plate (36) is attached and pressed against the rear side wall of the guide rail (1); the bolt passes through the plate (36) and is threadedly connected to the rear end surface of the slider (4); a plurality of pointed cones (37) are evenly fixed to the front wall of the guide rail (1); the tip of the pointed cone (37) passes through the rotational connection position between the slider (4) and the connecting rod (2); and the tip of the pointed cone is embedded in a concave point (38) provided on the outer surface of the rotating shaft at one end of the connecting rod (2).

7. A steel casing positioning device for steel sheet pile hole construction for pipe jacking construction according to claim 4, characterized in that: Connecting blocks (39) are provided on both side walls at both ends of the connecting block (5), one end of the connecting block (39) is fixedly connected to the connecting block (5), and the other end of the connecting block (39) is slidably connected to a connecting groove (40) provided on the side wall of the connecting plate (23).

8. The steel casing positioning device for steel sheet pile hole construction for pipe jacking construction according to claim 1 is characterized by: The cross beam (6) is provided with a reinforcing rod (41), which is horizontally placed in the cylinder (3), one end of the reinforcing rod (41) is welded to the inner wall of the cylinder (3), and the other end of the reinforcing rod (41) is fixedly connected to the side wall of the cross beam (6).

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