A leak-proof grouting device between deep foundation pit retaining piles

Abstract

The present invention discloses a plugging and grouting device between retaining piles of deep foundation pit, specifically relates to the technical field of building construction, comprising a mounting frame, a fixing frame is fixedly mounted on the end portion of the mounting frame, a drilling mechanism is provided in the middle of the fixing frame, a driving component is provided between the fixing frame and the drilling mechanism, and a grouting pipe is movably sleeved on the outer wall of the drilling mechanism away from the fixing frame. The present invention provides a drilling mechanism and cooperates with the driving component to automatically drive the drilling mechanism to rotate stably and at high speed in a rotating ring frame, cooperates with the opening of an external extension mechanism, drives the mounting frame, the fixing frame, the drilling mechanism, the driving component and the grouting pipe to translate synchronously, and the drill cam rotates at high speed, and the grouting drill barrel and the grouting pipe synchronously enter the leaking place between two adjacent retaining pile bodies of the foundation to drill a hole, and the grouting pipe directly and synchronously enters the drilled hole, and facilitates the subsequent slurry in the grouting inner barrel to be directly and synchronously sprayed into the hole through the groove, so as to perform direct plugging and grouting operations at the leaking place, thereby improving the efficiency of the plugging and grouting operations.

Description

Technical Field

[0001] The invention relates to the technical field of deep foundation pit retaining pile construction, in particular to a leak-proof grouting device between deep foundation pit retaining piles. Background Art

[0002] Deep foundation pit construction is a very common construction method in modern civil engineering construction. The excavation depth of deep foundation pits generally ranges from a few meters to tens of meters. Deep foundation pit construction can make use of underground space. For example, in urban road construction, in order to achieve high-standard planning and design, underground pipeline corridor construction is an indispensable construction process. That is, a tunnel space is built under the urban road, and various engineering pipelines such as electricity, communications, gas, heating, water supply and drainage are integrated and arranged in this tunnel space. Special inspection ports, lifting ports and monitoring systems are also provided to implement unified planning, design, construction and management. Deep foundation pit construction is inevitable when carrying out underground pipeline corridor construction.

[0003] When carrying out deep foundation pit construction, in order to prevent soil collapse from affecting the safety of construction in the pit and the stability of the surrounding building foundations, and to prevent groundwater from concentratedly infiltrating into the pit, thereby ensuring the stability of the foundation pit and the safety and convenience of the pit operation, it is generally necessary to carry out advance retaining treatment before the deep foundation pit excavation. The retaining methods can be divided into gravity mixing pile retaining wall, underground continuous wall, pile column retaining wall, etc. The specific retaining method can be selected based on comprehensive considerations such as the construction environment and economy. Among them, the pile column retaining wall is mainly composed of a wall composed of several retaining piles. The pile column retaining wall can be specifically divided into interval bored cast-in-place piles, interlocking bored cast-in-place piles, high-pressure rotary jet piles, etc. according to the structure of the retaining piles. Interlocking bored cast-in-place piles are continuous pile structures, so they have better waterproof sealing than interval bored cast-in-place piles. However, interval bored cast-in-place piles use less materials and are more economical. Therefore, interval bored cast-in-place piles are widely selected for deep foundation pit retaining in actual construction.

[0004] When using interval bored piles for deep foundation pit protection, since there is a soil layer structure between two adjacent retaining piles, groundwater leakage will inevitably appear between the interval soil layers during the excavation of the deep foundation pit. In order to prevent groundwater from leaking into the foundation pit, it is necessary to plug the leakage. Under the existing technology, plugging grouting devices are basically used to seal the leakage, that is, grouting is performed between two adjacent retaining piles (the grouting can be injected with concrete or foaming materials such as polyurethane) to block the water outlet. However, the traditional plugging grouting device is basically a fixed plate structure;

[0005] However, there are still some problems with the existing technology for the plugging grouting process between deep foundation pit retaining piles: traditional plugging grouting mostly adopts a step-by-step docking structural design for deep plugging of foundation pits, but after docking, it is necessary to drill and lock the corresponding positions of each plugging grouting device on the two retaining piles. Not only is it troublesome to drill holes and install before fixing, but it is also troublesome to disassemble after grouting and plugging. Moreover, the fixed plate sealing only performs surface grouting to plug the leak. When plugging, water can easily wash out the grouting material, affecting the effect of grouting and plugging. For this reason, we propose a plugging grouting device between deep foundation pit retaining piles to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a leak-proof grouting device between deep foundation pit retaining piles to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a leak-proof grouting device between deep foundation pit retaining piles, comprising a mounting frame, a fixing frame fixedly mounted on the end of the mounting frame, a drilling mechanism provided in the middle of the fixing frame, a driving assembly provided between the fixing frame and the drilling mechanism, a grouting pipe movably sleeved on the outer wall of the drilling mechanism away from the fixing frame, and a grouting hose provided on the end of the drilling mechanism away from the grouting pipe.

[0008] Preferably, the drilling mechanism includes a grouting drill barrel, a sliding card is provided in the grouting drill barrel with a translation slide, and one end of the grouting drill barrel is rotatably provided with a plurality of special-shaped frames distributed in a ring array, one end of the special-shaped frame extends out of the outside of the grouting drill barrel and contacts the outer wall of the grouting drill barrel, and the extended end position of the special-shaped frame is fixedly installed with a drilling convex, and the plurality of drilling convex are distributed in a ring array, and the special-shaped frame extends obliquely away from the side of the drilling convex into the translation slide, and the inner wall end of the translation slide is integrally formed with a plurality of connecting blocks and a plurality of L-shaped frames corresponding to the special-shaped frames, and the opposite ends of the plurality of connecting blocks are integrally formed with a first driving convex, and the opposite ends of the plurality of L-shaped frames are integrally formed with a second driving convex, the first driving convex contacts the opposite end surface of the corresponding special-shaped frame, and the second driving convex contacts the opposite end surface of the corresponding special-shaped frame.

[0009] Preferably, a rotating bearing is fixedly provided on the top of the translation slide away from the first driving protrusion, and an inner screw is fixedly provided on the top of the grouting drill tube close to the rotating bearing. A threaded rod is inserted into the middle thread of the inner screw, and the end of the threaded rod is rotatably clamped in the rotating bearing.

[0010] Preferably, the translation slide is fixedly provided with an inner tube in the middle of the side away from the first driving convexity, the end of the inner tube is movably connected to the middle of the side of the grouting drill barrel close to the special-shaped frame, a grouting inner tube is slidingly provided in the inner tube, and a connecting rod is fixedly provided on the inner wall of the side of the inner tube close to the special-shaped frame, a blocking column is integrally formed in the middle of the side of the connecting rod close to the grouting inner tube, a through groove corresponding to the blocking column is opened in the middle of the side of the grouting inner tube close to the connecting rod, the blocking column is movably connected in the corresponding through groove, and the side of the grouting inner tube away from the blocking column is fixedly connected to the middle of the side of the grouting drill barrel close to the inner spiral tube.

[0011] Preferably, a sealing rotating part is provided on the side of the grouting inner cylinder away from the blocking column, and the grouting hose is installed in the middle of the sealing rotating part;

[0012] By setting up a sealing rotating part, the rotation of the grouting inner cylinder will not affect the fixed position of the grouting hose, thereby improving the stability of the grouting hose in grouting.

[0013] Preferably, the grouting pipe is movably sleeved on the outside of the grouting drill barrel, one side of the drill boss contacts the end of the grouting pipe, and the end face of the grouting pipe away from the drill boss contacts the fixing frame.

[0014] Preferably, a fixing sleeve on one side of the grouting hose close to the drilling mechanism is provided with a stabilizing frame, and the stabilizing frame is fixedly installed in the mounting frame;

[0015] A stabilizing frame is provided on one side of the grouting hose close to the drilling mechanism, and the stabilizing frame is fixedly installed in the mounting frame, thereby improving the stability of the grouting hose.

[0016] Preferably, a rotating ring frame is integrally formed in the middle of the fixing frame, and the grouting drill tube is rotatably mounted on the middle of the rotating ring frame on the side close to the grouting hose;

[0017] By integrally forming a rotating ring frame in the middle of the fixing frame, the grouting drill tube is rotatably mounted on the middle of the rotating ring frame on one side close to the grouting hose, so that the drilling mechanism can rotate on the rotating ring frame.

[0018] Preferably, the driving assembly includes a driven gear ring, which is fixedly sleeved on the side of the grouting drill barrel close to the grouting hose, and the outer side of the driven gear ring is meshed with multiple driving gears, the shaft end of the driving gear is fixedly installed with a driving shaft, the end of the driving shaft is rotatably sleeved with a rotating frame, and the rotating frame is fixedly installed on the inner side of the fixed frame, and the outer sides of the multiple driving shafts are fixedly sleeved with transmission sprockets, and the outer sides of the multiple transmission sprockets are meshed with transmission chains.

[0019] Preferably, a driving motor is fixedly mounted on one side of the inner side of the fixing frame close to one of the driving shafts, and the driving end of the driving motor and the end of the corresponding driving shaft are coaxially fixedly mounted.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By setting up a drilling mechanism and using a driving assembly, the drilling mechanism is automatically driven to rotate stably and at high speed in the rotating ring frame, and the external extension mechanism is opened to drive the mounting frame, the fixing frame, the drilling mechanism, the driving assembly and the grouting pipe to translate synchronously. The drill cam rotates at high speed, and the grouting drill barrel and the grouting pipe synchronously enter the leaking place between two adjacent retaining piles of the foundation to drill a hole, and the grouting pipe directly enters the drilling place synchronously, and facilitates the subsequent slurry in the grouting inner barrel to be directly and synchronously sprayed into the hole through the groove, so as to carry out direct leak-proof grouting operations at the leaking place, thereby improving the efficiency of the leak-proof grouting operations.

[0022] 2. By setting up a drilling mechanism, after the plugging and grouting operation is completed, multiple drill convexities can be driven to rotate synchronously in the opposite direction to contact the end of the grouting pipe, and the outer diameter of the outer circular contour of the drill convex can be rotated to the same size as the outer diameter of the grouting pipe, so as to facilitate the subsequent driving of the grouting drill barrel to rotate and drive the multiple drill convexities on the head to rotate for drilling.

[0023] 3. By setting a sealing rotating part, the grouting inner cylinder rotates without affecting the fixed position of the grouting hose, thereby improving the stability of the grouting hose grouting; by setting a stabilizing frame on the side of the grouting hose close to the drilling mechanism, the stabilizing frame is fixedly installed in the mounting frame to improve the stability of the grouting hose.

[0024] 4. A rotating ring frame is integrally formed in the middle of the fixed frame, and the grouting drill tube is rotatably mounted on the middle of the rotating ring frame on the side close to the grouting hose, so that the drilling mechanism can rotate in the rotating ring frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the structure of the present invention.

[0027] Figure 2 It is a structural diagram of the leak-proof grouting device in the present invention,

[0028] Figure 3 This is a schematic diagram of the structural connection of the drilling mechanism in the present invention.

[0029] Figure 4 For the present invention Figure 3 The enlarged view of point A in the middle.

[0030] Figure 5 For the present invention Figure 3 The enlarged view of point B in the middle.

[0031] Figure 6 For the present invention Figure 4 The enlarged image of point C in the middle,

[0032] Figure 7 This is a partial structural connection diagram of the drilling mechanism in the present invention.

[0033] Figure 8 This is a schematic diagram of the connection structure of the grouting pipe, the drill boss and the fixing frame in the present invention.

[0034] Figure 9 This is a schematic diagram of the structural connection between the drilling mechanism and the drive assembly in the present invention.

[0035] Figure 10 For the present invention Figure 9 The enlarged view of point D in the middle,

[0036] In the figure: 1. Mounting frame; 2. Fixed frame; 21. Rotating ring frame; 3. Drilling mechanism; 4. Driving assembly; 5. Grouting pipe; 6. Grouting hose; 7. Stabilizing frame; 10. Foundation; 11. Retaining pile body; 31. Grouting drill barrel; 32. Translation slide; 321. Rotating bearing; 322. Inner screw tube; 323. Threaded rod; 33. Special-shaped frame; 331. Connecting block; 332. First driving protrusion; 333. L-shaped frame; 334. Second driving protrusion; 34. Drilling protrusion; 35. Inner pipe; 36. Grouting inner barrel; 37. Connecting rod; 38. Blocking column; 381. Through groove; 39. Sealing rotating part; 41. Driven gear ring; 42. Driving gear; 43. Driving shaft; 44. Rotating frame; 45. Drive sprocket; 46. Drive chain; 47. Driving motor. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] Example: Figure 1-10As shown, the present invention provides a plugging and grouting device between deep foundation pit retaining piles, including a mounting frame 1. When in use, the mounting frame 1 is fixedly mounted on the driving end of an external extension mechanism. By controlling and opening the external extension mechanism, the mounting frame 1 is driven to translate, thereby facilitating subsequent translational drilling at the leaking part of the foundation 10. A fixing frame 2 is fixedly mounted on the end of the mounting frame 1, a drilling mechanism 3 is provided in the middle of the fixing frame 2, a driving assembly 4 is provided between the fixing frame 2 and the drilling mechanism 3, a grouting pipe 5 is movably sleeved on the outer wall of the drilling mechanism 3 on the side away from the fixing frame 2, and a grouting hose 6 is provided on the end of the drilling mechanism 3 away from the grouting pipe 5. Driving the mounting frame 1 to translate can drive the fixing frame 2, the drilling mechanism 3, the driving assembly 4 and the grouting pipe 5 to translate synchronously. When in use, the end of the grouting hose 6 is connected to the feed end of the grouting mechanism, and the grouting mechanism is opened so that the plugging slurry can enter the grouting hose 6.

[0039] The drilling mechanism 3 includes a grouting drill barrel 31, in which a translation slide 32 is provided for sliding in the grouting drill barrel 31. The translation slide 32 can slide in the grouting drill barrel 31. One end of the grouting drill barrel 31 is provided with a plurality of special-shaped frames 33 distributed in a ring array. The special-shaped frames 33 can rotate at one end of the grouting drill barrel 31. One end of the special-shaped frame 33 extends out of the outside of the grouting drill barrel 31 and contacts the outer wall of the grouting drill barrel 31. The extended end positions of the special-shaped frames 33 are all fixedly installed with drilling protrusions 34. The plurality of drilling protrusions 34 are distributed in a ring array. The grouting pipe 5 is movably sleeved on the outside of the grouting drill barrel 31, and one side of the drill protrusion 34 contacts the end of the grouting pipe 5. At this time, multiple drill protrusions 34 are in a vertical state, and the outer contours of multiple drill protrusions 34 form a circle. The outer diameter of the circle is the same as the outer diameter of the grouting pipe 5, which is convenient for the subsequent grouting drill barrel 31 to synchronously enter the leaking area between two adjacent retaining piles 11 of the foundation 10 to drill a hole. The end face of the grouting pipe 5 away from the drill protrusion 34 contacts the fixing frame 2, and the fixing frame 2 limits the grouting pipe 5. When the fixing frame 2 moves horizontally, the grouting pipe 5 is synchronously driven to move horizontally.

[0040] The special-shaped frame 33 extends obliquely to the translation slide 32 away from the side of the drilling protrusion 34. The inner wall end of the translation slide 32 is integrally formed with a plurality of connecting blocks 331 and a plurality of L-shaped frames 333 corresponding to the special-shaped frame 33. The opposite ends of the plurality of connecting blocks 331 are integrally formed with a first driving protrusion 332, and the opposite ends of the plurality of L-shaped frames 333 are integrally formed with a second driving protrusion 334. The first driving protrusion 332 contacts the opposite end surface of the corresponding special-shaped frame 33, and the second driving protrusion 334 is integrally formed. 4 and the corresponding end surface of the special-shaped frame 33, the plurality of first driving protrusions 332 contact and limit the opposite end surface of the special-shaped frame 33, and the plurality of second driving protrusions 334 contact and limit the opposite end surface of the special-shaped frame 33. When the translation slide 32 is driven to move toward the side close to the drilling protrusion 34, the first driving protrusion 332 and the second driving protrusion 334 are driven to move toward the side close to the drilling protrusion 34 synchronously. At this time, the first driving protrusion 332 is separated from the opposite end surface of the special-shaped frame 33, and the second driving protrusion 334 is in the opposite end surface. The opposite end surface of the special-shaped frame 33 moves, and synchronously drives multiple special-shaped frames 33 to rotate, driving multiple drilling protrusions 34 to rotate synchronously, breaking away from the contact of the end of the grouting pipe 5, and rotating the outer diameter of the outer circular contour of the drilling protrusion 34 to a state smaller than the inner diameter of the grouting pipe 5, so that the drilling protrusion 34 can be translated into the grouting pipe 5 to separate the drilling mechanism 3 and the grouting pipe 5. On the contrary, when the translation slide 32 is driven to move to the side away from the drilling protrusion 34, the first driving protrusion 332 and the second driving protrusion 334 are driven to move synchronously away from the drilling protrusion 34. Move to one side of the drilling protrusion 34. At this time, the second driving protrusion 334 disengages from the opposite end surface of the special-shaped frame 33, and the first driving protrusion 332 moves on the opposite end surface of the special-shaped frame 33, and synchronously drives multiple special-shaped frames 33 to rotate in the opposite direction, driving multiple drilling protrusions 34 to rotate in the opposite direction synchronously, and contacting the end of the grouting pipe 5, and rotating the outer diameter of the outer circular contour of the drilling protrusion 34 to the same size as the outer diameter of the grouting pipe 5, so as to facilitate the subsequent driving of the grouting drill barrel 31 to rotate and drive the multiple drilling protrusions 34 on the head to rotate for drilling.

[0041] The top of the translation slide 32 away from the first driving protrusion 332 is fixedly provided with a rotating bearing 321, and the top of the grouting drill barrel 31 close to the rotating bearing 321 is fixedly provided with an inner screw tube 322, and the middle part of the inner screw tube 322 is threadedly inserted with a threaded rod 323, and the end of the threaded rod 323 is rotatably connected to the rotating bearing 321. By setting the rotating bearing 321, the threaded rod 323 is easy to rotate at the top of the side of the translation slide 32 away from the first driving protrusion 332. By manually screwing the threaded rod 323 and cooperating with the inner screw tube 322, the translation slide 32 is driven to translate and slide in the grouting drill barrel 31.

[0042] The translation slide 32 is fixedly provided with an inner tube 35 in the middle of one side away from the first driving protrusion 332, and the end of the inner tube 35 is movably connected to the middle of the side of the grouting drill barrel 31 close to the special-shaped frame 33. When the translation slide 32 is translated and slid in the grouting drill barrel 31, the inner tube 35 is synchronously driven to translate and slide in the grouting drill barrel 31. A grouting inner tube 36 is provided in the sliding card of the inner tube 35. A connecting rod 37 is fixedly provided on the inner wall of the side of the inner tube 35 close to the special-shaped frame 33. A blocking column 38 is integrally formed on the middle of the side of the connecting rod 37 close to the grouting inner tube 36. The grouting inner tube 36 is close to the connecting rod. A through groove 381 corresponding to the blocking column 38 is provided in the middle of one side of 37, and the blocking column 38 is movably connected in the corresponding through groove 381, and the through groove 381 is blocked by the blocking column 38. The side of the grouting inner tube 36 away from the blocking column 38 is fixedly connected to the middle of the side of the grouting drill barrel 31 close to the inner spiral tube 322. When the inner tube 35 slides horizontally in the grouting drill barrel 31, the inner tube 35 slides on the outside of the grouting inner tube 36, the blocking column 38 is separated from the through groove 381, and the through groove 381 is opened. The slurry in the grouting inner tube 36 can be directly sprayed into the hole through the through groove 381 to perform direct plugging grouting operations at the leaking area.

[0043] A sealing rotating part 39 is provided on the side of the grouting inner cylinder 36 away from the blocking column 38, and the grouting hose 6 is installed in the middle of the sealing rotating part 39. By providing the sealing rotating part 39, when the grouting inner cylinder 36 rotates, it does not affect the fixed position of the grouting hose 6, thereby improving the stability of the grouting hose 6 in slurry delivery.

[0044] A stabilizing frame 7 is fixedly provided on one side of the grouting hose 6 close to the drilling mechanism 3, and the stabilizing frame 7 is fixedly installed in the mounting frame 1. By arranging the stabilizing frame 7 on the side of the grouting hose 6 close to the drilling mechanism 3 and fixing the stabilizing frame 7 in the mounting frame 1, the stability of the grouting hose 6 is improved.

[0045] A rotating ring frame 21 is integrally formed in the middle of the fixed frame 2, and the grouting drill tube 31 is rotatably mounted on the middle of the rotating ring frame 21 on the side close to the grouting hose 6. By integrally forming the rotating ring frame 21 in the middle of the fixed frame 2, the grouting drill tube 31 is rotatably mounted on the side close to the grouting hose 6 on the middle of the rotating ring frame 21, which facilitates the rotation of the drilling mechanism 3 in the rotating ring frame 21.

[0046] The drive assembly 4 includes a driven gear ring 41, which is fixedly sleeved on the side of the grouting drill tube 31 near the grouting hose 6. The outer side of the driven gear ring 41 is meshed with multiple drive gears 42. The shaft end of the drive gear 42 is fixedly mounted with a drive shaft 43, and the end of the drive shaft 43 is rotatably sleeved with a rotating frame 44; a drive motor 47 is fixedly mounted on the inner side of the fixed frame 2 near one of the drive shafts 43, and the drive end of the drive motor 47 is coaxially fixedly mounted with the end of the corresponding drive shaft 43;

[0047] The rotating frame 44 is fixedly installed on the inner side of the fixed frame 2, and the outer sides of the multiple drive shafts 43 are fixedly sleeved with a transmission sprocket 45, and the outer sides of the multiple drive sprockets 45 are meshed with a transmission chain 46; when in use, the corresponding drive shaft 43 is driven to rotate by controlling and turning on the drive motor 47, and the transmission of the multiple drive sprockets 45 and the transmission chain 46 is used to synchronously drive the multiple drive shafts 43 and the drive gear 42 to rotate synchronously at the same speed and in the same direction, thereby driving the driven gear ring 41 to rotate at high speed, and then automatically driving the drilling mechanism 3 to rotate stably and at high speed in the rotating ring frame 21.

[0048] Working principle: When in use, the mounting bracket 1 is fixedly mounted on the driving end of the external extension mechanism, and the end of the grouting hose 6 is connected to the feeding end of the grouting mechanism. Then, the grouting pipe 5 is sleeved on the outside of the grouting drill barrel 31, so that the end face of the grouting pipe 5 away from the drill protrusion 34 contacts the fixing bracket 2, and the grouting pipe 5 is limited. Then, the threaded rod 323 is manually screwed, and the inner screw tube 322 is matched to drive the translation slide 32 to move to the side away from the drill protrusion 34, driving the first driving protrusion 332 and the second driving protrusion 334 to move synchronously to the side away from the drill protrusion 34. At this time, The second driving protrusion 334 is separated from the opposite end surface of the special-shaped frame 33, and the first driving protrusion 332 moves on the opposite end surface of the special-shaped frame 33, and synchronously drives the multiple special-shaped frames 33 to rotate in the opposite direction, driving the multiple drilling protrusions 34 to rotate in the opposite direction synchronously, and contacting the end of the grouting pipe 5, and rotating the outer diameter of the outer circular contour of the drilling protrusion 34 to a state with the same size as the outer diameter of the grouting pipe 5, and the blocking column 38 is movably engaged in the corresponding through groove 381, and the through groove 381 is blocked by the blocking column 38 to prevent the through groove 381 from being blocked during subsequent drilling and affecting the subsequent grouting operation;

[0049] Subsequently, the drilling mechanism 3 and the grouting pipe 5 are aligned with the leaking area, the driving motor 47 is controlled and turned on to drive the corresponding driving shaft 43 to rotate, and the transmission of multiple transmission sprockets 45 and transmission chains 46 is used in conjunction with the transmission to synchronously drive the multiple driving shafts 43 and the driving gear 42 to rotate synchronously at the same speed and in the same direction, thereby driving the driven gear ring 41 to rotate at high speed, and then automatically driving the drilling mechanism 3 to rotate stably and at high speed in the rotating ring frame 21, and cooperating with the opening of the external extension mechanism to drive the mounting frame 1, the fixing frame 2, the drilling mechanism 3, the driving assembly 4 and the grouting pipe 5 to translate synchronously, the drilling boss 34 rotates at high speed, and the grouting drill barrel 31 and the grouting pipe 5 synchronously enter the leaking area between the two adjacent retaining piles 11 of the foundation 10 to drill a hole until the end of the grouting pipe 5 close to the drilling boss 34 moves to the deep water seepage area;

[0050] Subsequently, the drilling mechanism 3 and the grouting pipe 5 are moved outward by a small distance, leaving a grouting cavity at the deep water seepage location;

[0051] Subsequently, when the translation slide 32 is driven to move toward the side close to the drilling protrusion 34, the first driving protrusion 332 and the second driving protrusion 334 are driven to move toward the side close to the drilling protrusion 34 synchronously. At this time, the first driving protrusion 332 is separated from the opposite end surface of the special-shaped frame 33, and the second driving protrusion 334 is moved on the opposite end surface of the special-shaped frame 33, and the multiple special-shaped frames 33 are synchronously driven to rotate, driving the multiple drilling protrusions 34 to rotate synchronously, breaking away from the contact at the end of the grouting pipe 5, and making the outer diameter of the outer circular contour of the drilling protrusion 34 rotate to a state smaller than the inner diameter of the grouting pipe 5, so that when the drilling mechanism 3 is moved outward, the drilling protrusion 34 is translated into the grouting pipe 5, and the drilling mechanism 3 and the grouting pipe 5 are detached. At the same time, the blocking column 38 is separated from the through groove 381, and the through groove 381 is opened;

[0052] At the same time as the detachment, the grouting mechanism is turned on and the plugging slurry can enter the grouting hose 6 and the grouting inner tube 36. The slurry in the grouting inner tube 36 can be directly and synchronously sprayed into the hole through the groove 381 to perform direct plugging grouting operations at the leaking area, thereby improving the efficiency of the plugging grouting operations.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A leak-proof grouting device between deep foundation pit retaining piles, comprising a mounting frame (1), characterized in that: A fixing frame (2) is fixedly mounted on the end of the mounting frame (1); a drilling mechanism (3) is provided in the middle of the fixing frame (2); a driving assembly (4) is provided between the fixing frame (2) and the drilling mechanism (3); a grouting pipe (5) is movably sleeved on the outer wall of the drilling mechanism (3) away from the fixing frame (2); and a grouting hose (6) is provided on the end of the drilling mechanism (3) away from the grouting pipe (5); The drilling mechanism (3) includes a grouting drill barrel (31), a translation slide barrel (32) is provided in the grouting drill barrel (31), and a plurality of special-shaped frames (33) distributed in a ring array are provided on one end of the grouting drill barrel (31). One end of the special-shaped frame (33) extends out of the outside of the grouting drill barrel (31) and contacts the outer wall of the grouting drill barrel (31). A drilling protrusion (34) is fixedly installed at the extended end position of the special-shaped frame (33). The plurality of drilling protrusions (34) are distributed in a ring array, and the special-shaped frame (33) is inclined away from the drilling protrusion (34). The translation slide (32) extends into the translation slide (32), and the inner wall end of the translation slide (32) is integrally formed with a plurality of connection blocks (331) and a plurality of L-shaped frames (333) corresponding to the special-shaped frames (33). The opposite ends of the plurality of connection blocks (331) are integrally formed with a first driving protrusion (332), and the opposite ends of the plurality of L-shaped frames (333) are integrally formed with a second driving protrusion (334). The first driving protrusion (332) contacts the opposite end surface of the corresponding special-shaped frame (33), and the second driving protrusion (334) contacts the opposite end surface of the corresponding special-shaped frame (33). A rotating bearing (321) is fixedly clamped on the top of the side of the translation slide (32) away from the first driving protrusion (332), and an inner screw tube (322) is fixedly clamped on the top of the side of the grouting drill tube (31) close to the rotating bearing (321). A threaded rod (323) is threadedly inserted in the middle of the inner screw tube (322), and the end of the threaded rod (323) is rotatably clamped in the rotating bearing (321). An inner tube (35) is fixedly provided in the middle of the side of the translation slide (32) away from the first driving protrusion (332), and the end of the inner tube (35) is movably connected to the middle of the side of the grouting drill tube (31) close to the special-shaped frame (33). A grouting inner tube (36) is slidably provided in the inner tube (35), and a connecting rod (37) is fixedly provided on the inner wall of the side of the inner tube (35) close to the special-shaped frame (33). The connecting rod (37) is close to the special-shaped frame (33). A blocking column (38) is integrally formed in the middle of one side of the grouting inner tube (36), and a through groove (381) corresponding to the blocking column (38) is opened in the middle of one side of the grouting inner tube (36) close to the connecting rod (37). The blocking column (38) is movably engaged in the corresponding through groove (381), and the side of the grouting inner tube (36) away from the blocking column (38) is fixedly engaged in the middle of one side of the grouting drill tube (31) close to the inner screw tube (322).

2. A leak-proof grouting device between deep foundation pit retaining piles according to claim 1, characterized in that: A sealing rotating part (39) is provided on the side of the grouting inner cylinder (36) away from the blocking column (38), and the grouting hose (6) is installed in the middle of the sealing rotating part (39).

3. The leak-proof grouting device between deep foundation pit retaining piles according to claim 1, characterized in that: The grouting pipe (5) is movably sleeved on the outside of the grouting drill barrel (31), one side of the drill boss (34) contacts the end of the grouting pipe (5), and the end face of the grouting pipe (5) away from the drill boss (34) contacts the fixing frame (2).

4. The leak-proof grouting device between deep foundation pit retaining piles according to claim 1, characterized in that: A stabilizing frame (7) is fixedly provided on one side of the grouting hose (6) close to the drilling mechanism (3), and the stabilizing frame (7) is fixedly installed in the mounting frame (1).

5. The leak-proof grouting device between deep foundation pit retaining piles according to claim 1, characterized in that: A rotating ring frame (21) is integrally formed in the middle of the fixing frame (2), and the grouting drill tube (31) is rotatably mounted on the middle of the rotating ring frame (21) on a side close to the grouting hose (6).

6. The leak-proof grouting device between deep foundation pit retaining piles according to claim 5, characterized in that: The driving assembly (4) comprises a driven gear ring (41), the driven gear ring (41) being fixedly sleeved on a side of the grouting drill tube (31) close to the grouting hose (6), the outer side of the driven gear ring (41) being meshedly connected with a plurality of driving gears (42), the shaft end of the driving gear (42) being fixedly mounted with a driving shaft (43), the end of the driving shaft (43) being rotatably sleeved with a rotating frame (44), the rotating frame (44) being fixedly mounted on the inner side of the fixed frame (2), the outer sides of the plurality of driving shafts (43) being fixedly sleeved with a transmission sprocket (45), the outer sides of the plurality of transmission sprockets (45) being meshedly connected with a transmission chain (46).

7. The leak-proof grouting device between deep foundation pit retaining piles according to claim 6, characterized in that: A drive motor (47) is fixedly mounted on one side of the inner side of the fixing frame (2) close to one of the drive shafts (43), and the drive end of the drive motor (47) is fixedly mounted coaxially with the end of the corresponding drive shaft (43).

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