Combined pile retaining structure plugging device

Abstract

The present invention provides a plugging device for a combined pile retaining structure, comprising a fixed bracket, the fixed bracket having a support frame; a plugging mechanism is arranged on the outer side of the support frame, the plugging mechanism has a plugging plate, the plugging plate is provided with a drainage valve, a sealing ring is fixedly arranged on the inner side of the plugging plate, and a plugging hydraulic cylinder for driving the plugging plate to reciprocate in a horizontal direction is mounted on the outer side of the support frame; a grinding drive mechanism is arranged on the inner side of the support frame to slide in a vertical direction, a lifting drive mechanism for driving the grinding drive mechanism to move up and down is arranged on the support frame, a grinding mechanism is arranged on the inner side of the grinding drive mechanism, and the grinding drive mechanism is used to drive the grinding mechanism to move in a trajectory matching the shape of the sealing ring; the present invention can reduce the difficulty of construction, reduce the investment in manpower and material resources, and can be suitable for plugging leaks at leaks at different heights.

Description

Technical Field

[0001] The invention belongs to the technical field of foundation pit retaining construction, and in particular relates to a combined pile retaining structure plugging device. Background Art

[0002] Cast-in-place piles are a foundation reinforcement method that uses concrete slurry to form a columnar body that is continuous with the foundation mass in the hole to support buildings or structures. Water-stop curtains are water-blocking measures taken in underground construction projects to prevent groundwater infiltration. In the case of deep foundation pits in narrow sites and complex surrounding environments, the advantages of the combined pile support of mixing piles + cast-in-place piles are fully utilized and applied, achieving the goal of shortening the construction period and ensuring the safety of the foundation pit and surrounding buildings.

[0003] When mixing piles are used as water-stop curtains, unforeseen cold joints are prone to occur during the construction process, which may cause leakage of the water-stop curtain. The spacing between cast-in-place piles is usually 1 to 3 times the pile diameter. There is a soil layer between two adjacent cast-in-place piles, which cannot play a water-isolating role, and leakage is prone to occur between the cast-in-place piles.

[0004] At present, the leaking point is usually blocked on the inside of the foundation pit, and the leaking point is blocked by grouting from the outside of the foundation pit. The inside of the foundation pit is usually blocked by covering the soil with a cofferdam because the inner wall of the foundation pit is uneven. This blocking method is difficult to construct and requires a large amount of manpower and material resources. In addition, it is not suitable for situations where the leaking point is high from the bottom of the foundation pit.

[0005] Therefore, it is necessary to design a combined pile retaining structure plugging device that reduces construction difficulty, reduces manpower and material investment, and can be used to plug leaks at leaking points at different heights to solve the current technical problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a combined pile retaining structure plugging device which reduces construction difficulty, reduces the investment in manpower and material resources, and can be used to plug leaks at leaking points at different heights.

[0007] The technical solution of the present invention is: a combined pile retaining structure plugging device, comprising a fixed bracket, the fixed bracket having a support frame; a sealing mechanism is arranged on the outer side of the support frame, the sealing mechanism has a sealing plate, the sealing plate is provided with a drainage valve, a sealing ring is fixedly arranged on the inner side of the sealing plate, a sealing hydraulic cylinder for driving the sealing plate to reciprocate in the horizontal direction is mounted on the outer side of the support frame; a grinding drive mechanism is arranged on the inner side of the support frame for sliding in the vertical direction, a lifting drive mechanism for driving the grinding drive mechanism to move up and down is arranged on the support frame, a grinding mechanism is arranged on the inner side of the grinding drive mechanism, and the grinding drive mechanism is used to drive the grinding mechanism to move in a trajectory matching the shape of the sealing ring.

[0008] Furthermore, the grinding drive mechanism comprises a grinding support plate slidably arranged inside the support frame along the vertical direction, and transverse guide rods are arranged in parallel at the upper and lower ends of the inner side of the grinding support plate, and transverse sliding blocks are slidably mounted on the upper and lower transverse guide rods, and a longitudinal guide rod is fixedly arranged between the two transverse sliding blocks, and a longitudinal sliding block is slidably mounted on the longitudinal guide rod; a center slide is rotatably arranged in the center of the inner side of the grinding support plate, and a slide drive motor for driving the center slide to rotate is arranged on the outer side of the grinding support plate, a driving slide rod is slidably arranged inside the center slide, and a rotating connecting seat is fixedly arranged on one end of the driving slide rod, the rotating connecting seat is rotatably connected to the longitudinal sliding block, and a supporting spring is mounted on the outer side of the driving slide rod between the rotating connecting seat and the center slide; the grinding mechanism is arranged on the inner side of the longitudinal sliding block.

[0009] Furthermore, the grinding mechanism is fixedly mounted on one side of the longitudinal slider through a grinding telescopic mechanism; the grinding telescopic mechanism has a telescopic support tube fixedly arranged on one side of the longitudinal slider, a telescopic arm is slidably arranged inside one end of the telescopic support tube, a telescopic slide is fixedly arranged on the outside of one end of the telescopic arm located inside the telescopic support tube, an installation groove is opened inside the end of the telescopic arm located inside the telescopic support tube, a telescopic driving hydraulic cylinder is fixedly arranged between the installation groove and one end inside the telescopic support tube, the telescopic slide is slidably arranged inside the telescopic support tube, and a telescopic stop edge corresponding to the telescopic slide is fixedly arranged on the inner side of the end of the telescopic support tube; the grinding mechanism is fixedly arranged on the end of the telescopic arm away from the telescopic support tube.

[0010] Furthermore, the lifting drive mechanism has a lifting drive hydraulic cylinder, which is fixedly arranged on the upper end of the support frame along the vertical direction through a hydraulic cylinder fixing seat, and a hydraulic cylinder connecting seat is fixedly arranged on the outside of the grinding drive mechanism, and the piston rod end of the lifting drive hydraulic cylinder is fixedly connected to one side of the hydraulic cylinder connecting seat; two parallel lifting guide rods are arranged inside the support frame along the vertical direction, and a lifting slide seat slidingly mounted on the outside of the lifting guide rod is fixedly arranged on the grinding support plate.

[0011] Furthermore, the grinding mechanism has a casing, a main grinding wheel is rotatably arranged in the center of the casing on a side away from the grinding drive mechanism, and a grinding drive motor for driving the main grinding wheel to rotate is arranged inside the casing.

[0012] Furthermore, four secondary grinding wheels are evenly arranged around the center of the main grinding wheel on the side of the casing away from the grinding drive mechanism, and a partition is arranged inside the casing, and a main gear and a secondary gear are rotatably arranged on one side of the partition, the main gear is coaxially connected to the main grinding wheel, the secondary gear is coaxially connected to the secondary grinding wheel, the secondary gear is connected to the main gear through an idler gear, and the grinding drive motor is fixedly arranged on the side of the partition away from the main gear, and the grinding drive motor is coaxially connected to the main gear.

[0013] Furthermore, an air blowing cleaning mechanism is arranged on the outer side of the casing; the air blowing cleaning mechanism has an air distribution cavity fixedly arranged on the outer side of the casing, and air jet pipes are evenly arranged on the side of the air distribution cavity close to the main grinding wheel, and the air jet pipes are connected to the air distribution cavity, and an air pipe joint connected to the air distribution cavity is arranged on the air distribution cavity.

[0014] Furthermore, at least two auxiliary support mechanisms are symmetrically arranged on the outer side of the blocking plate; one end of the auxiliary support mechanism is hinged to the outer side of the blocking plate, and the other end of the auxiliary support mechanism has an auxiliary connecting plate, and a waist-shaped connecting hole is opened on the auxiliary connecting plate.

[0015] Furthermore, the auxiliary support mechanism has an auxiliary support arm, one end of the auxiliary support arm is hinged to the outer side of the blocking plate, the other end of the auxiliary support arm is provided with a support end plate, the interior of the support end plate is provided with a support screw, the support screws on both sides of the support end plate are equipped with fixing nuts, and the auxiliary connecting plate is fixedly arranged on one end of the support screw away from the auxiliary support arm.

[0016] Furthermore, support legs are evenly arranged on the inner side of the support frame, and a fixing plate is fixedly arranged on one end of the support leg away from the support frame, and the fixing plate is a straight plate body or an arc-shaped plate body.

[0017] Beneficial effects of the present invention:

[0018] (1) In the present invention, the two sides of the support frame of the fixed bracket are fixedly installed on the outer sides of the bored piles on both sides of the water leakage point, and the plugging mechanism corresponds to the water leakage point. The plugging hydraulic cylinder drives the plugging plate to abut against the inner wall of the enclosure structure, so as to plug the water leakage point. At this time, a grouting pipe can be inserted downward above the leakage point outside the enclosure structure to inject grouting inside the leakage point to stop water leakage. During the grouting process, the drainage valve is opened. When a relatively pure slurry flows out of the drainage valve, the drainage valve is closed and kept for a period of time until the slurry is fully solidified. Then, the fixed bracket can be removed to complete the plugging construction;

[0019] (2) The plugging device of the combined pile retaining structure can be disassembled and reused, which reduces the construction cost. The fixed bracket can be installed and fixed according to the height of the leakage point, which can be applied to the situation where the leakage point is at different heights from the bottom of the foundation pit;

[0020] (3) Before the plugging mechanism plugs the water leakage point, the grinding mechanism is started to grind the inner wall of the enclosure structure. At the same time, the grinding drive mechanism drives the grinding mechanism to move along a trajectory matching the shape of the sealing ring, and a flat grinding surface matching the shape of the sealing ring is ground on the inner wall of the enclosure structure. Then, the lifting drive mechanism drives the grinding drive mechanism to move the grinding mechanism upward to reserve moving space for the plugging mechanism. The plugging hydraulic cylinder drives the plugging plate to abut against the inner wall of the enclosure structure, and the sealing ring abuts against the flat grinding surface, thereby plugging the water leakage point and improving the tightness of the seal.

[0021] (4) When plugging the leak, it is only necessary to fix the two sides of the support frame of the fixed bracket on the outside of the bored piles on both sides of the leak point, and the grinding and plugging construction can be automatically carried out, which reduces the construction difficulty and reduces the investment of manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the structural schematic diagrams of the combined pile retaining structure plugging device in the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the grinding drive mechanism and the lifting drive mechanism in the present invention.

[0024] Figure 3 This is the second structural schematic diagram of the combined pile retaining structure plugging device in the present invention.

[0025] Figure 4 It is a structural schematic diagram of the auxiliary support mechanism in the present invention.

[0026] Figure 5 This is one of the structural schematic diagrams of a grinding telescopic mechanism and an implementation mode of a grinding mechanism in the present invention.

[0027] Figure 6 This is the second structural schematic diagram of an implementation mode of the grinding telescopic mechanism and the grinding mechanism in the present invention.

[0028] Figure 7 for Figure 6 Cross-section view at AA in the middle.

[0029] Figure 8 for Figure 6 Cross-section view at the middle BB.

[0030] Fig. 9 It is a schematic structural diagram of another embodiment of the grinding telescopic mechanism and the grinding mechanism in the present invention.

[0031] Description of reference numerals:

[0032] 1-fixed bracket; 11-support frame; 12-support leg; 13-fixed plate;

[0033] 2-grinding drive mechanism; 21-grinding support plate; 22-longitudinal guide rod; 23-transverse guide rod; 24-transverse slide block; 25-longitudinal slide block; 26-center slide seat; 27-driving slide rod; 271-rotating connecting seat; 28-support spring; 29-slide seat driving motor;

[0034] 3-lifting drive mechanism; 31-lifting drive hydraulic cylinder; 32-hydraulic cylinder fixing seat; 33-hydraulic cylinder connecting seat; 34-lifting guide rod; 35-lifting slide seat;

[0035] 4-grinding mechanism; 41-housing; 42-primary grinding wheel; 43-secondary grinding wheel; 44-grinding drive motor; 45-partition plate; 46-primary gear; 47-secondary gear; 48-idler wheel;

[0036] 5-blocking mechanism; 51-blocking plate; 52-sealing ring; 53-drainage valve; 54-blocking hydraulic cylinder; 55-blocking guide rod; 56-door frame;

[0037] 6- auxiliary support mechanism; 61- auxiliary support arm; 62- support screw; 63- fixing nut; 64- auxiliary connecting plate; 641- waist-shaped connecting hole; 65- supporting end plate;

[0038] 7-air blowing and cleaning mechanism; 71-air chamber; 72-air jet pipe; 73-trachea joint;

[0039] 8-grinding telescopic mechanism; 81-telescopic driving hydraulic cylinder; 82-telescopic support tube; 83-telescopic arm; 84-mounting groove; 85-telescopic slide; 86-telescopic stop edge. DETAILED DESCRIPTION

[0040] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is not intended to be any limitation on the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limitations.

[0041] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] like Figures 1 to 8 As shown, the combined pile enclosure structure plugging device comprises a fixed bracket 1, the fixed bracket 1 has a support frame 11, the fixed bracket 1 is used to be fixedly installed on both sides of the leaking point to provide fixed support for the combined pile enclosure structure plugging device. For the convenience of description, the side of the support frame 11 close to the inner wall of the enclosure structure is the inner side, and the other side of the support frame 11 is the outer side; the outer side of the support frame 11 is provided with a plugging mechanism 5, the plugging mechanism 5 has a plugging plate 51, the plugging plate 51 is provided with a drainage valve 53, and the inner side of the plugging plate 51 is fixedly provided with a sealing Ring 52, a groove corresponding to the sealing ring 52 is opened on the inner side of the sealing plate 51, and a sealing hydraulic cylinder 54 for driving the sealing plate 51 to reciprocate in the horizontal direction is mounted on the outer side of the support frame 11; a grinding drive mechanism 2 is provided on the inner side of the support frame 11 for sliding in the vertical direction, and a lifting drive mechanism 3 for driving the grinding drive mechanism 2 to move up and down is provided on the support frame 11, and a grinding mechanism 4 is provided on the inner side of the grinding drive mechanism 2, and the grinding drive mechanism 2 is used to drive the grinding mechanism 4 to move along a trajectory matching the shape of the sealing ring 52.

[0043] In the above embodiment, both sides of the support frame 11 of the fixed bracket 1 are fixedly installed on the outer sides of the bored piles on both sides of the water leakage point, the plugging mechanism 5 corresponds to the water leakage point, and the plugging hydraulic cylinder 54 drives the plugging plate 51 to press against the inner wall of the enclosure structure, so as to plug the water leakage point. At this time, the grouting pipe can be inserted downward above the leakage point outside the enclosure structure to inject grouting to seal the leakage point and stop the water leakage. During the grouting process, the drainage valve 53 is opened, and when the drainage valve 53 flows out a relatively pure slurry, the drainage valve 53 is closed and kept for a period of time until the slurry is fully solidified, and then the fixed bracket 1 can be removed to complete the plugging construction; the combined pile enclosure structure plugging device can be detachable and repeatedly used to reduce the construction cost, and the fixed bracket 1 can be installed and fixed according to the different heights of the leakage point, and can be suitable for the situation where the leakage point is at different heights from the bottom of the foundation pit; in the plugging mechanism 5 Before sealing the leaking point, start the grinding mechanism 4 to grind the inner wall of the enclosure structure. At the same time, the grinding drive mechanism 2 drives the grinding mechanism 4 to move along a trajectory that matches the shape of the sealing ring 52, and grinds a smooth grinding surface that matches the shape of the sealing ring 52 on the uneven inner wall of the enclosure structure. Then the lifting drive mechanism 3 drives the grinding drive mechanism 2 to drive the grinding mechanism 4 to move upward to make room for the sealing mechanism 5 to move. The sealing hydraulic cylinder 54 drives the sealing plate 51 to abut against the inner wall of the enclosure structure, and the sealing ring 52 abuts against the smooth grinding surface, and the fit is tighter, thereby sealing the leaking point and improving the tightness of the seal. When plugging the leak, it is only necessary to fix the two sides of the support frame 11 of the fixed bracket 1 on the outside of the bored piles on both sides of the leaking point, and the grinding and plugging construction can be automatically performed, which reduces the construction difficulty and reduces the investment in manpower and material resources.

[0044] In some embodiments, as a specific implementation of the grinding drive mechanism 2, as Figures 1 to 3As shown, the grinding drive mechanism 2 has a grinding support plate 21 slidably arranged inside the support frame 11 along the vertical direction, and a transverse guide rod 23 is arranged parallel to the upper and lower ends of the inner side of the grinding support plate 21, and a transverse slide block 24 is slidably mounted on the upper and lower transverse guide rods 23, and a longitudinal guide rod 22 is fixedly arranged between the two transverse slide blocks 24, and a longitudinal slide block 25 is slidably arranged on the longitudinal guide rod 22; a center slide 26 is rotatably arranged in the center of the inner side of the grinding support plate 21, and a slide drive motor 29 for driving the center slide 26 to rotate is arranged on the outer side of the grinding support plate 21, and the inner sliding arrangement of the center slide 26 There is a driving slide bar 27, one end of which is fixedly provided with a rotating connection seat 271, which is rotatably connected to the outer side of the longitudinal slide bar 25, and a supporting spring 28 is sleeved on the outer side of the driving slide bar 27 between the rotating connection seat 271 and the center slide bar 26; the grinding mechanism 4 is arranged on the inner side of the longitudinal slide bar 25; the slide seat driving motor 29 drives the center slide bar 26 to rotate, and when the center slide bar 26 rotates, it drives the driving slide bar 27 to rotate, and when the driving slide bar 27 rotates, the rotating connection seat 271 at one end of the driving slide bar 27 drives the longitudinal slide bar 25 to move; when the center slide bar 26 is in the position as shown in FIG. Figure 2 When the longitudinal slide 25 is in the position shown, the central slide 26 rotates clockwise, and the longitudinal slide 25 drives the longitudinal guide rod 22 and the transverse slides 24 at both ends to move along the transverse guide rod 23 located below. When the transverse slide 24 moves to one end of the transverse guide rod 23 located below, the transverse slide 24 no longer moves, and the longitudinal slide 25 slides upward along the longitudinal guide rod 22, driving the slide 27 to slide inside the central slide 26, and the supporting spring 28 is deformed accordingly. When the longitudinal slide 25 slides upward along the longitudinal guide rod 22 to the upper end of the longitudinal guide rod 22, the longitudinal slide 25 drives the longitudinal guide rod 22 and the transverse slides 24 at both ends to move along the transverse guide rod 23 located above. When the transverse slide 24 moves to one end of the transverse guide rod 23 located above, the transverse slide 24 no longer moves. The longitudinal slider 25 slides downward along the longitudinal guide rod 22, driving the slide rod 27 to slide inside the central slide seat 26. When the longitudinal slider 25 slides downward along the longitudinal guide rod 22 to the lower end of the longitudinal guide rod 22, the longitudinal slider 25 drives the longitudinal guide rod 22 and the transverse sliders 24 at both ends to move again along the transverse guide rod 23 located below, thereby the longitudinal slider 25 completes a rectangular running trajectory. The sealing ring 52 is a rectangular sealing ring that matches the rectangular running trajectory. The grinding mechanism 4 is driven by the longitudinal slider 25 to grind along the rectangular running trajectory, so that a plane matching the sealing ring 52 can be ground on the inner wall of the enclosure structure, so that the sealing ring 52 is tightly fitted with the inner wall of the enclosure structure, thereby improving the sealing effect of the sealing plate 51.

[0045] In some embodiments, Figure 6 and 7As shown, the grinding mechanism 4 is fixedly mounted on one side of the longitudinal slider 25 through the grinding telescopic mechanism 8, and the grinding telescopic mechanism 8 can adjust the distance between the grinding mechanism 4 and the inner wall of the enclosure structure during the grinding process; the grinding telescopic mechanism 8 has a telescopic support tube 82 fixedly arranged on one side of the longitudinal slider 25, a telescopic arm 83 is slidably arranged inside one end of the telescopic support tube 82, a telescopic slide 85 is fixedly arranged on the outer side of one end of the telescopic arm 83 located inside the telescopic support tube 82, a mounting groove 84 is opened inside one end of the telescopic arm 83 located inside the telescopic support tube 82, and a telescopic drive is fixedly arranged between the mounting groove 84 and the inner end of the telescopic support tube 82 The hydraulic cylinder 81 and the telescopic slide 85 are slidably arranged inside the telescopic support tube 82. A telescopic stopper 86 corresponding to the telescopic slide 85 is fixedly arranged on the inner side of the end of the telescopic support tube 82. The telescopic stopper 86 forms a block for the telescopic slide 85, which can prevent the telescopic arm 83 from slipping out from the inside of the telescopic support tube 82; the grinding mechanism 4 is fixedly arranged on the end of the telescopic arm 83 away from the telescopic support tube 82; the piston rod of the telescopic driving hydraulic cylinder 81 is extended or retracted, which can drive the telescopic arm 83 to slide inside the telescopic support tube 82, thereby adjusting the position of the grinding mechanism 4 arranged at one end of the telescopic arm 83 and adjusting the grinding depth.

[0046] In some embodiments, Figure 2 and 3 As shown, the lifting drive mechanism 3 has a lifting drive hydraulic cylinder 31, which is fixedly arranged on the upper end of the support frame 11 in the vertical direction through a hydraulic cylinder fixing seat 32, and a hydraulic cylinder connecting seat 33 is fixedly arranged on the outer side of the grinding drive mechanism 2, and the hydraulic cylinder connecting seat 33 is welded and fixed on the outer side of the grinding support plate 21, and the piston rod end of the lifting drive hydraulic cylinder 31 is fixedly connected to one side of the hydraulic cylinder connecting seat 33. By controlling the piston rod of the lifting drive hydraulic cylinder 31 to retract or extend, the grinding drive mechanism 2 can be driven to drive the grinding mechanism 4 to move upward. The grinding drive mechanism 2 drives the grinding mechanism 4 to move upward or reset downward. After the grinding drive mechanism 2 drives the grinding mechanism 4 to move upward into position, the space below the support frame 11 can be vacated. At this time, the blocking mechanism 5 can be activated to block the leaking point. Two parallel lifting guide rods 34 are arranged inside the support frame 11 in the vertical direction. A lifting slide 35 slidingly mounted on the outer side of the lifting guide rod 34 is fixedly arranged on the grinding support plate 21. The grinding support plate 21 cooperates with the lifting guide rod 34 through the lifting slide 35 to realize the sliding setting of the grinding drive mechanism 2 on the inner side of the support frame 11 along the vertical direction.

[0047] In some embodiments, the grinding mechanism 4 has a casing 41, on which a main grinding wheel 42 is centrally arranged for rotation on one side of the casing 41 facing away from the grinding drive mechanism 2, and a grinding drive motor 44 for driving the main grinding wheel 42 to rotate is arranged inside the casing 41. The grinding drive motor 44 drives the main grinding wheel 42 to rotate at high speed to grind the inner wall of the enclosure structure and grind it flat.

[0048] In some embodiments, in order to reduce the curvature of the four corners of the rectangular area ground out of the inner wall of the enclosure structure so as to match the sealing ring 52, four secondary grinding wheels 43 are evenly arranged around the center of the main grinding wheel 42 on the side of the housing 41 away from the grinding drive mechanism 2, and a partition 45 is arranged inside the housing 41. A main gear 46 and a secondary gear 47 are rotatably arranged on one side of the partition 45. The main gear 46 is coaxially connected to the main grinding wheel 42, and the secondary gear 47 is coaxially connected to the secondary grinding wheel 43. The secondary gear 47 is connected to the main gear 46 through an idler gear 48. The grinding drive motor 44 is fixed. It is arranged on the side of the partition 45 away from the main gear 46, and the grinding drive motor 44 is coaxially connected with the main gear 46. The grinding drive motor 44 drives the main gear 46 to rotate. The main gear 46 and the secondary gear 47 are transmitted through the idler gear 48, which drives the secondary gear 47 to rotate. The main gear 46 and the secondary gear 47 respectively drive the main grinding wheel 42 and the secondary grinding wheel 43 to rotate at high speed to grind the inner wall of the enclosure structure; the outer diameter of the secondary grinding wheel 43 is relatively small. The four secondary grinding wheels 43 can reduce the curvature of the four corners of the rectangular area of ​​the inner wall of the enclosure structure, so that the rectangular area is adapted to the sealing ring 52.

[0049] In some embodiments, Fig. 9 As shown, an air blowing cleaning mechanism 7 is arranged on the outer side of the casing 41; the air blowing cleaning mechanism 7 has a sub-cavity 71 fixedly arranged on the outer side of the casing 41, and an air jet pipe 72 is evenly arranged on the side of the sub-cavity 71 close to the main grinding wheel 42, and the air jet pipe 72 is connected with the sub-cavity 71, and an air pipe joint 73 connected with it is arranged on the sub-cavity 71, and the air pipe joint 73 is connected with the external high-pressure air source through an electromagnetic valve. After the rectangular area is ground, the grinding telescopic mechanism 8 contracts, driving the grinding mechanism 4 away from the inner wall of the enclosure structure, and controlling the electromagnetic valve to connect the air pipe joint 73 with the external high-pressure air source, and the grinding drive mechanism 2 drives the longitudinal slider 25 to drive the air blowing cleaning mechanism 7 to run again along the rectangular track, and blows and cleans the rectangular area matching the sealing ring 52 after grinding, and blows off the dust adhering to the rectangular area, thereby further improving the fit between the sealing ring 52 and the rectangular area and improving the sealing effect; wherein the high-pressure air source can be an air compressor.

[0050] In some embodiments, Figure 3 and 4As shown, at least two auxiliary support mechanisms 6 are symmetrically arranged on the outer side of the blocking plate 51; one end of the auxiliary support mechanism 6 is hinged to the outer side of the blocking plate 51, and the other end of the auxiliary support mechanism 6 has an auxiliary connecting plate 64, and a waist-shaped connecting hole 641 is opened on the auxiliary connecting plate 64. When the blocking plate 51 blocks the leaking point, the position of the waist-shaped connecting hole 641 opened on the auxiliary connecting plate 64 is tangent to the side of the bored pile. At this time, the auxiliary connecting plate 64 and the side of the bored pile can be fixedly connected by expansion bolts, and the blocking plate 51 is supported by the auxiliary support mechanism 6, so as to further strengthen the support for the blocking plate 51, so as to avoid excessive pressure during the grouting and plugging process, which causes loosening between the fixed bracket 1 and the bored pile, and then causes the blocking plate 51 to loosen and leak.

[0051] In some embodiments, the auxiliary support mechanism 6 has an auxiliary support arm 61, one end of the auxiliary support arm 61 is hinged to the outer side of the sealing plate 51, and the other end of the auxiliary support arm 61 is provided with a support end plate 65, and the interior of the support end plate 65 is provided with a support screw 62 parallel to the auxiliary support arm 61, and the support screws 62 on both sides of the support end plate 65 are equipped with fixing nuts 63, and the auxiliary connecting plate 64 is fixedly set on the support screw 62 at one end away from the auxiliary support arm 61; in different plugging construction processes, it is usually difficult to ensure that the auxiliary connecting plate 64 is just tangent to the side of the bored pile. At this time, the fixing nut 63 can be loosened, and the position of the support screw 62 relative to the support end plate 65 can be adjusted so that the auxiliary connecting plate 64 is tangent to the side of the bored pile. After the adjustment is completed, the fixing nut 63 is tightened to the support end plate 65, and the support screw 62 and the auxiliary support arm 61 are firmly fixed to provide stable support for the sealing plate 51.

[0052] In some embodiments, support legs 12 are evenly arranged on the inner side of the support frame 11, and a fixing plate 13 is fixedly arranged on the end of the support leg 12 facing away from the support frame 11, and the fixing plate 13 is a straight plate body or an arc-shaped plate body; at least one through hole is opened on the fixing plate 13, and the fixing plate 13 can be fixed to the outside of the cast-in-place pile through the through hole to cooperate with expansion, thereby fixing the fixed bracket 1.

[0053] In the above embodiment, a gate frame 56 is fixedly provided on the outer side of the support frame 11, and the blocking hydraulic cylinder 54 is fixedly provided on the gate frame 56, and the end of the piston rod of the blocking hydraulic cylinder 54 is fixedly connected to the outer side of the blocking plate 51; a blocking guide rod 55 parallel to the piston rod of the blocking hydraulic cylinder 54 is slidably provided on the gate frame 56, and the blocking guide rod 55 is slidably connected to the gate frame 56.

[0054] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0055] The above-mentioned embodiments only express some implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A leak plugging device for a combined pile retaining structure, characterized in that: It includes a fixed bracket, wherein the fixed bracket has a support frame; A blocking mechanism is arranged on the outer side of the support frame, the blocking mechanism has a blocking plate, a drainage valve is arranged on the blocking plate, a sealing ring is fixedly arranged on the inner side of the blocking plate, and a blocking hydraulic cylinder is mounted on the outer side of the support frame to drive the blocking plate to reciprocate in the horizontal direction; A grinding drive mechanism is provided on the inner side of the support frame for sliding along the vertical direction, a lifting drive mechanism is provided on the support frame for driving the grinding drive mechanism to move up and down, a grinding mechanism is provided on the inner side of the grinding drive mechanism, and the grinding drive mechanism is used to drive the grinding mechanism to move along a trajectory matching the shape of the sealing ring; The grinding drive mechanism comprises a grinding support plate slidably arranged inside the support frame along a vertical direction, a transverse guide rod is arranged parallel to the upper and lower ends of the inner side of the grinding support plate, a transverse slide block is slidably mounted on the upper and lower transverse guide rods, a longitudinal guide rod is fixedly arranged between the two transverse slide blocks, and a longitudinal slide block is slidably arranged on the longitudinal guide rod; A central slide is rotatably arranged at the center of the inner side of the grinding support plate, a slide drive motor for driving the central slide to rotate is arranged at the outer side of the grinding support plate, a driving slide rod is slidably arranged inside the central slide, a rotating connecting seat is fixedly arranged at one end of the driving slide rod, the rotating connecting seat is rotatably connected with the longitudinal slider, and a support spring is sleeved on the outer side of the driving slide rod between the rotating connecting seat and the central slide; The grinding mechanism is arranged on the inner side of the longitudinal slide block.

2. The combined pile enclosure structure plugging device according to claim 1 is characterized in that: The grinding mechanism is fixedly mounted on one side of the longitudinal slide block through a grinding telescopic mechanism; The grinding telescopic mechanism comprises a telescopic support tube fixedly arranged on one side of the longitudinal slide block, a telescopic arm is slidably arranged inside one end of the telescopic support tube, a telescopic slide is fixedly arranged outside one end of the telescopic arm located inside the telescopic support tube, a mounting groove is provided inside one end of the telescopic arm located inside the telescopic support tube, a telescopic driving hydraulic cylinder is fixedly arranged between the mounting groove and one end inside the telescopic support tube, the telescopic slide is slidably arranged inside the telescopic support tube, and a telescopic stop edge corresponding to the telescopic slide is fixedly arranged inside the end of the telescopic support tube; The grinding mechanism is fixedly arranged on one end of the telescopic arm away from the telescopic support tube.

3. The combined pile enclosure structure plugging device according to claim 1 is characterized in that: The lifting drive mechanism has a lifting drive hydraulic cylinder, which is fixedly arranged on the upper end of the support frame in the vertical direction through a hydraulic cylinder fixing seat, and a hydraulic cylinder connecting seat is fixedly arranged on the outer side of the grinding drive mechanism, and the piston rod end of the lifting drive hydraulic cylinder is fixedly connected to one side of the hydraulic cylinder connecting seat; Two parallel lifting guide rods are arranged inside the support frame along the vertical direction, and a lifting slide seat which is slidably sleeved on the outer side of the lifting guide rods is fixedly arranged on the grinding support plate.

4. The combined pile enclosure structure plugging device according to claim 1 is characterized in that: The grinding mechanism comprises a casing, a main grinding wheel is centrally arranged on a side of the casing away from the grinding drive mechanism for rotation, and a grinding drive motor for driving the main grinding wheel for rotation is arranged inside the casing.

5. The combined pile enclosure structure plugging device according to claim 4 is characterized in that: Four secondary grinding wheels are evenly arranged around the center of the main grinding wheel on one side of the casing away from the grinding drive mechanism, and a partition is arranged inside the casing. A main gear and a secondary gear are rotatably arranged on one side of the partition, the main gear is coaxially connected to the main grinding wheel, the secondary gear is coaxially connected to the secondary grinding wheel, the secondary gear is connected to the main gear through an idler gear, and the grinding drive motor is fixedly arranged on a side of the partition away from the main gear, and the grinding drive motor is coaxially connected to the main gear.

6. The combined pile enclosure structure plugging device according to claim 5 is characterized by: An air blowing cleaning mechanism is arranged on the outside of the casing; the air blowing cleaning mechanism has an air distribution cavity fixedly arranged on the outside of the casing, and air jet pipes are evenly arranged on the side of the air distribution cavity close to the main grinding wheel, the air jet pipes are connected to the air distribution cavity, and the air distribution cavity is provided with an air pipe joint connected thereto.

7. The combined pile enclosure structure plugging device according to claim 1 is characterized by: At least two auxiliary support mechanisms are symmetrically arranged on the outer side of the blocking plate; One end of the auxiliary support mechanism is hinged to the outer side of the blocking plate, and the other end of the auxiliary support mechanism is provided with an auxiliary connecting plate, and a waist-shaped connecting hole is provided on the auxiliary connecting plate.

8. The combined pile enclosure structure plugging device according to claim 7 is characterized in that: The auxiliary support mechanism has an auxiliary support arm, one end of the auxiliary support arm is hinged to the outer side of the blocking plate, the other end of the auxiliary support arm is provided with a support end plate, the interior of the support end plate is provided with a support screw, the support screws on both sides of the support end plate are equipped with fixing nuts, and the auxiliary connecting plate is fixedly arranged on one end of the support screw away from the auxiliary support arm.

9. The combined pile enclosure structure plugging device according to claim 1 is characterized by: Support legs are evenly arranged on the inner side of the support frame, and a fixing plate is fixedly arranged on one end of the support leg away from the support frame, and the fixing plate is a straight plate body or an arc-shaped plate body.

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