Grouting device comprising grouting steel pipe

Abstract

A grouting device comprising a grouting steel pipe, the grouting device being used for injecting grout into holes and comprising a grouting pipe, a first blocking mechanism and a second blocking mechanism, wherein the grouting pipe has a top end and a bottom end; and a first through hole, a second through hole, a third through hole and a fourth through hole are sequentially provided in the grouting pipe from the top end and the bottom end. The first blocking mechanism comprises a first main cylinder and a first rubber bladder, wherein the first main cylinder is fixedly sleeved on the grouting pipe; and the first rubber bladder is rotationally sleeved on the first main cylinder, and is in communication with the first through hole. The second blocking mechanism comprises a first auxiliary cylinder and a second rubber bladder, wherein the first auxiliary cylinder can be slidably sleeved on the grouting pipe along the axis of the first auxiliary cylinder. The second rubber bladder is rotationally sleeved on the first auxiliary cylinder, and is configured to be in communication with the second through hole or the third through hole. Therefore, the grouting device can be used for solving the problem of existing grouting devices not performing grouting uniformly.

Description

A steel flower pipe grouting device Technical Field

[0001] The invention relates to the technical field of grouting devices, and in particular to a steel flower pipe grouting device. Background Art

[0002] Grouting is divided into ceramic process grouting and construction engineering grouting. Ceramic process grouting is a process of injecting prepared mud into ceramic production. Construction engineering is a method of injecting certain solidifying slurries into cracks or pores in rock foundations by appropriate methods, and improving their physical and mechanical properties through replacement, filling, extrusion, etc.

[0003] There are two common methods for grouting steel pipes: dry grouting and wet grouting. Dry grouting involves mixing materials into a slurry at a specific ratio and then pouring it into the steel pipe for curing. Wet grouting involves mixing materials into a gel at a specific ratio and then flushing it into the steel pipe for curing.

[0004] For example, the Chinese invention patent with authorization announcement number CN112854194B provides a device and method for backward grouting. Although the grouting can be performed in sections, the actual grouting section length increases with each step, resulting in uneven grouting and poor grouting results. Furthermore, when the plug is being used to seal the hole wall, the pressure exerted by the plug on the hole wall differs significantly from the pressure exerted by the slurry on the remaining sections. In particular, the hole wall above the plug is subjected to greater pressure, which still poses a risk of hole wall collapse.

[0005] Summary of the Invention

[0006] The invention provides a steel flower pipe grouting device to solve the problem of uneven grouting of the existing grouting device.

[0007] The present invention provides a steel flower tube grouting device, which adopts the following technical solution: a steel flower tube grouting device, for grouting into a hole, comprising a flower tube, a first blocking mechanism, and a second blocking mechanism; the flower tube has a top end and a bottom end, and is provided with a first through hole, a second through hole, a third through hole, and a fourth through hole in sequence from the top end to the bottom end;

[0008] The first blocking mechanism includes a first main cylinder and a first rubber bladder. The first main cylinder is fixedly mounted on the floral tube, and the first rubber bladder is rotatably mounted on the first main cylinder, and the first rubber bladder is connected to the first through hole. The second blocking mechanism includes a first auxiliary cylinder and a second rubber bladder. The first auxiliary cylinder can be slidably mounted on the floral tube along its own axis, and the first auxiliary cylinder and the floral tube rotate synchronously. The second rubber bladder is rotatably mounted on the first auxiliary cylinder, and the second rubber bladder is used to connect to the second through hole or the third through hole.

[0009] The first rubber sac and the second rubber sac are both annular and have a first state, a second state, a third state, and a fourth state. In the first state, the diameters of the first rubber sac and the second rubber sac are smaller than the diameter of the hole. In the second state, the diameters of the first rubber sac and the second rubber sac are the same as the diameters of the hole. The thicknesses of the first rubber sac and the second rubber sac in the second state are the same as those in the first state.

[0010] In the third state, the diameters of the first and second rubber bags are smaller than the diameter of the hole, and the thicknesses of the first and second rubber bags in the third state are greater than those in the first state. In the fourth state, the diameters of the first and second rubber bags are larger than the diameter of the hole, and the thicknesses of the first and second rubber bags in the fourth state are less than those in the first state.

[0011] The first blocking mechanism also includes a second main tube and a third main tube, both of which extend along the axis of the floral tube; the second main tube is rotatably sleeved on the first main tube and can slide along the axis of the first main tube; one side of the first rubber sac is fixedly connected to an end of the second main tube near the bottom end of the floral tube; the third main tube is rotatably sleeved on the first main tube and moves synchronously with the first main tube; one side of the first rubber sac is fixedly connected to an end of the third main tube near the top end of the floral tube;

[0012] The second blocking mechanism also includes a second auxiliary cylinder and a third auxiliary cylinder, both of which extend along the axis of the floral tube; the second auxiliary cylinder is rotatably sleeved on the first auxiliary cylinder and can slide along the axis of the first auxiliary cylinder; a second rubber sac is sleeved on the first auxiliary cylinder, one side of the second rubber sac is fixedly connected to an end of the second auxiliary cylinder near the top of the floral tube; the third auxiliary cylinder is rotatably sleeved on the first auxiliary cylinder, and the third auxiliary cylinder and the first auxiliary cylinder move synchronously, and the other side of the second rubber sac is fixedly connected to an end of the third auxiliary cylinder near the bottom of the floral tube;

[0013] The first rubber bag includes a first support ring, a first annular plate, a second annular plate and a first rubber ring; the first support ring is sleeved on the first main tube, the first annular plate is fixedly connected to the side of the first support ring close to the top end of the flower tube, and the second annular plate is fixedly connected to the side of the first support ring close to the bottom end of the flower tube; both sides of the first rubber ring are fixedly connected to the first annular plate and the second annular plate respectively;

[0014] The second rubber bag includes a second support ring, a third annular plate, a fourth annular plate, and a second rubber ring; the second support ring is sleeved on the first secondary cylinder, the third annular plate is fixedly connected to the side of the second support ring close to the bottom end of the flower tube, the fourth annular plate is fixedly connected to the side of the second support ring close to the top end of the flower tube, and both sides of the second rubber ring are fixedly connected to the third annular plate and the fourth annular plate respectively;

[0015] A first baffle is fixedly provided at one end of the second main tube near the bottom end of the floral tube, and the first baffle is fixedly connected to the first annular plate; a second baffle is fixedly provided at one end of the third main tube near the top end of the floral tube, and the second baffle is fixedly connected to the second annular plate; a first baffle ring is fixedly provided on the peripheral wall of the first main tube, and the first baffle ring is used to limit the distance the first baffle moves on the first main tube;

[0016] A third baffle is fixedly provided at one end of the second secondary tube near the top of the floral tube, and the third baffle is fixedly connected to the third annular plate; a fourth baffle is fixedly provided at one end of the third secondary tube near the bottom of the floral tube, and the fourth baffle is fixedly connected to the fourth annular plate; a second baffle ring is fixedly provided on the peripheral wall of the first secondary tube, and the second baffle ring is used to limit the distance the third baffle moves on the first secondary tube;

[0017] The second main tube is provided with a first internal thread on its inner peripheral wall, and the first main tube is provided with a first external thread on its outer peripheral wall, and the first external thread and the first internal thread are threadedly engaged; when the first main tube rotates forward relative to the second main tube, the second main tube moves toward the top end of the flower tube relative to the first main tube; when the first main tube rotates backward relative to the second main tube, the second main tube moves toward the bottom end of the flower tube relative to the first main tube;

[0018] A second internal thread is provided on the inner circumferential wall of the second auxiliary tube, and a second external thread is provided on the outer circumferential wall of the first auxiliary tube. The second internal thread and the second external thread are threadedly engaged with each other. When the first auxiliary tube rotates forward relative to the second auxiliary tube, the second auxiliary tube moves toward the top end of the floral tube relative to the first auxiliary tube. When the first auxiliary tube rotates backward relative to the second auxiliary tube, the second auxiliary tube moves toward the bottom end of the floral tube relative to the first auxiliary tube.

[0019] The steel flower tube grouting device also includes a connecting mechanism, which includes a first telescopic tube, a second telescopic tube and a spring; one end of the first telescopic tube is fixedly connected to an end of the first main tube near the bottom end of the flower tube, one end of the second telescopic tube is fixedly connected to an end of the first secondary tube near the top end of the flower tube, and the other end of the second telescopic tube is inserted into the interior of the other end of the first telescopic tube; one end of the spring is fixedly connected to the other end of the second telescopic tube, and the other end of the spring is fixedly connected to the inner wall of the first telescopic tube.

[0020] Beneficial effect: A steel flower pipe grouting device adopts backward grouting and segmented grouting at the same time. By setting a first sealing mechanism and a second sealing mechanism, the second sealing mechanism and the space at the bottom of the hole are first grouting, and then the first sealing mechanism and the second sealing mechanism are grouting. At the same time, the first sealing mechanism and the second sealing mechanism move toward the entrance of the hole along with the flower pipe until the first sealing mechanism and the second sealing mechanism are moved out of the hole, and then the space at the entrance of the hole is grouting through the feed pipe. The segmented grouting can effectively control the pressure in each space, so that the pressure in the entire hole is balanced, which can effectively improve the grouting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic structural diagram of a first embodiment of the present invention;

[0022] FIG2 is a partial cross-sectional view of a first blocking mechanism according to an embodiment of the present invention;

[0023] FIG3 is an exploded view of FIG2 ;

[0024] FIG4 is a partial cross-sectional view of a second blocking mechanism according to an embodiment of the present invention;

[0025] FIG5 is a schematic structural diagram of a flower tube according to an embodiment of the present invention;

[0026] FIG6 is a schematic diagram of the state of step 1 during operation of the first embodiment of the present invention;

[0027] FIG7 is a schematic diagram of the state of step 2 during operation of the first embodiment of the present invention;

[0028] FIG8 is a schematic diagram of the state of step three of the first embodiment of the present invention;

[0029] FIG9 is a schematic diagram of the state of step 4 during operation of the first embodiment of the present invention;

[0030] FIG10 is a schematic diagram of the state of step five during operation of the first embodiment of the present invention;

[0031] FIG11 is a schematic diagram of the state of step six during operation of the first embodiment of the present invention;

[0032] FIG12 is a schematic diagram of the state of step seven during operation of the first embodiment of the present invention.

[0033] In the figure: 100, straight tube; 200, flower tube; 210, first through hole; 220, second through hole; 230, third through hole; 240, fourth through hole; 300, first blocking mechanism; 310, first main tube; 311, first external thread; 312, fifth through hole; 313, first retaining ring; 314, first limiting ring; 320, second main tube; 321, first baffle; 322, first internal thread; 330, third main tube; 331, second baffle; 340, first rubber bag; 350, first Support ring; 351, first annular plate; 352, second annular plate; 360, first telescopic tube; 400, second blocking mechanism; 410, first sub-cylinder; 411, second baffle ring; 412, sixth through hole; 413, second external thread; 420, second sub-cylinder; 421, third baffle; 422, second internal thread; 430, third sub-cylinder; 431, fourth baffle; 440, second rubber bladder; 450, second support ring; 460, second telescopic tube; 510, sealing cover; 600, hole. DETAILED DESCRIPTION

[0034] Example 1: Referring to Figures 1 to 12, a steel flower tube grouting device is used for grouting a hole 600, comprising a flower tube 200, a first sealing mechanism 300, and a second sealing mechanism 400. The flower tube 200 has a top and a bottom. A first through hole 210, a second through hole 220, a third through hole 230, and a fourth through hole 240 are sequentially formed on the flower tube 200 from the top and the bottom along the axis of the flower tube 200. Specifically, there are a plurality of the first through hole 210, the second through hole 220, the third through hole 230, and the fourth through hole 240, and the plurality of the first through hole 210, the plurality of the second through hole 220, the plurality of the third through hole 230, and the plurality of the fourth through hole 240 are evenly distributed along the circumference of the flower tube 200.

[0035] The first sealing mechanism 300 includes a first main tube 310 and a first rubber bladder 340. The first main tube 310 extends along the axis of the floral tube 200. The first main tube 310 is fixedly mounted on the floral tube 200. A fifth through-hole 312 is defined in the peripheral wall of the first main tube 310, communicating with the first through-hole 210. The first rubber bladder 340 is rotatably mounted on the first main tube 310, with the interior of the first rubber bladder 340 communicating with the fifth through-hole 312.

[0036] The second sealing mechanism 400 includes a first sub-tube 410 and a second rubber bladder 440. The first sub-tube 410 extends along the axis of the floral tube 200 and is slidably mounted on the floral tube 200 along its axis. The first sub-tube 410 and the floral tube 200 rotate synchronously. A sixth through-hole 412 is defined in the first sub-tube 410, which communicates with the second through-hole 220 or the third through-hole 230. The second rubber bladder 440 is rotatably mounted on the first sub-tube 410, communicating with the sixth through-hole 412.

[0037] The first and second rubber bladders 340 and 440 are both annular in shape, identical in size and shape, and have a first, second, third, and fourth state. In the first state, the diameters of the first and second rubber bladders 340 and 440 are smaller than the diameter of the hole 600. In the second state, the diameters of the first and second rubber bladders 340 and 440 are the same as the diameters of the hole 600. Furthermore, the thicknesses of the first and second rubber bladders 340 and 440 in the second state are the same as those in the first state. In this state, the walls of the first and second rubber bladders 340 and 440 abut against the wall of the hole 600, preventing the slurry from flowing out from between the walls of the first and second rubber bladders 340 and 440 and the wall of the hole 600.

[0038] In the third state, the diameters of the first rubber bag 340 and the second rubber bag 440 are smaller than the diameter of the hole 600 , and the thicknesses of the first rubber bag 340 and the second rubber bag 440 in the third state are greater than those in the first state.

[0039] In the fourth state, the diameters of the first rubber bag 340 and the second rubber bag 440 are larger than the diameter of the hole 600 , and the thicknesses of the first rubber bag 340 and the second rubber bag 440 in the fourth state are respectively smaller than those in the first state. At this time, the first rubber bag 340 and the second rubber bag 440 are severely inflated.

[0040] In this embodiment, the first sealing mechanism 300 also includes a second main cylinder 320 and a third main cylinder 330. Both the second main cylinder 320 and the third main cylinder 330 extend along the axis of the floral tube 200. The second main cylinder 320 is rotatably mounted on the first main cylinder 310 and is capable of sliding along the axis of the first main cylinder 310. A first rubber bladder 340 is fixedly connected to one end of the second main cylinder 320 near the bottom of the floral tube 200. The third main cylinder 330 is rotatably mounted on the first main cylinder 310 and moves synchronously with the first main cylinder 310. One end of the first rubber bladder 340 is fixedly connected to one end of the third main cylinder 330 near the top of the floral tube 200. Rotation of the floral tube 200 drives the first main cylinder 310 to rotate synchronously. As the second main cylinder 320 slides along the axis of the first main cylinder 310, the relative motion between the second and third main cylinders 320, 330 changes the thickness and radius of the first rubber bladder 340.

[0041] The second sealing mechanism 400 also includes a second sub-cylinder 420 and a third sub-cylinder 430, both of which extend along the axis of the floral tube 200. The second sub-cylinder 420 is rotatably mounted on the first sub-cylinder 410 and is capable of sliding along the axis of the first sub-cylinder 410. A second rubber bladder 440 is mounted on the first sub-cylinder 410, with one side of the second rubber bladder 440 fixedly connected to the end of the second sub-cylinder 420 near the top of the floral tube 200. The third sub-cylinder 430 is rotatably mounted on the first sub-cylinder 410, and the third sub-cylinder 430 and the first sub-cylinder 410 move synchronously. The other side of the second rubber bladder 440 is fixedly connected to the end of the third sub-cylinder 430 near the bottom of the floral tube 200.

[0042] When the floral tube 200 rotates, the second sub-tube 420 rotates synchronously. When the second sub-tube 420 slides along the axis of the first sub-tube 410 , the relative movement between the second sub-tube 420 and the third sub-tube 430 changes the thickness and radius of the second rubber bag 440 .

[0043] In this embodiment, the first rubber bladder 340 includes a first support ring 350, a first annular plate 351, a second annular plate 352, and a first rubber ring. The first support ring 350 is sleeved onto the first main tube 310. The first annular plate 351 is fixedly connected to the side of the first support ring 350 near the top of the floral tube 200, and the second annular plate 352 is fixedly connected to the side of the first support ring 350 near the bottom of the floral tube 200. The first rubber ring is fixedly connected to the first annular plate 351 and the second annular plate 352 on either side, respectively. A first through-slot is defined in the first support ring 350. The first through-slot extends along the circumference of the first support ring 350 and communicates with the fifth through-hole 312.

[0044] The second rubber bladder 440 includes a second support ring 450, a third annular plate, a fourth annular plate, and a second rubber ring. The second support ring 450 is sleeved onto the first secondary cylinder 410. The third annular plate is fixedly connected to the side of the second support ring 450 near the bottom of the floral tube 200. The fourth annular plate is fixedly connected to the side of the second support ring 450 near the top of the floral tube 200. The second rubber ring is fixedly connected to the third and fourth annular plates on either side, respectively. A second through-slot is defined in the second support ring 450, extending along the circumference of the second support ring 450 and communicating with the sixth through-hole 412.

[0045] In this embodiment, a first baffle 321 is fixedly mounted on one end of the second main tube 320 near the bottom of the floral tube 200. The first baffle 321 is fixedly connected to the first annular plate 351. A beveled annular surface is fixedly mounted on the first baffle 321 and is fixedly connected to the outer wall of the second main tube 320. As the beveled annular surface moves from the top to the bottom of the floral tube 200, the side of the beveled annular surface near the bottom of the floral tube 200 gradually moves away from the axis of the floral tube 200.

[0046] A second baffle 331 is fixedly mounted on one end of the third main tube 330, near the top of the floral tube 200. The second baffle 331 is fixedly connected to the second annular plate 352. A first baffle ring 313 is fixedly mounted on the peripheral wall of the first main tube 310. The first baffle ring 313 is used to limit the distance that the first baffle 321 can move on the first main tube 310. When the first rubber bladder 340 is in the third state, the first baffle ring 313 and the first baffle 321 abut against each other.

[0047] A third baffle 421 is fixedly mounted on the end of the second sub-tube 420 near the top of the floral tube 200. The third baffle 421 is fixedly connected to the third annular plate. A fourth baffle 431 is fixedly mounted on the end of the third sub-tube 430 near the bottom of the floral tube 200. The fourth baffle 431 is fixedly connected to the fourth annular plate. A second baffle ring 411 is fixedly mounted on the peripheral wall of the first sub-tube 410. The second baffle ring 411 is used to limit the distance that the third baffle 421 can move on the first sub-tube 410. When the second rubber bladder 440 is in the third state, the second baffle ring 411 and the third baffle 421 abut against each other.

[0048] In this embodiment, a first internal thread 322 is provided on the inner circumferential wall of the second main cylinder 320, and a first external thread 311 is provided on the outer circumferential wall of the first main cylinder 310. The first external thread 311 and the first internal thread 322 are threadedly engaged. When the first main cylinder 310 rotates forward relative to the second main cylinder 320, the second main cylinder 320 moves toward the top of the floral tube 200 relative to the first main cylinder 310. When the first main cylinder 310 rotates backward relative to the second main cylinder 320, the second main cylinder 320 moves toward the bottom of the floral tube 200 relative to the first main cylinder 310.

[0049] A second internal thread 422 is provided on the inner circumferential wall of the second auxiliary cylinder 420, and a second external thread 413 is provided on the outer circumferential wall of the first auxiliary cylinder 410. The second internal thread 422 and the second external thread 413 are threadedly engaged with each other. When the first auxiliary cylinder 410 rotates forward relative to the second auxiliary cylinder 420, the second auxiliary cylinder 420 moves toward the top end of the floral tube 200 relative to the first auxiliary cylinder 410. When the first auxiliary cylinder 410 rotates backward relative to the second auxiliary cylinder 420, the second auxiliary cylinder 420 moves toward the bottom end of the floral tube 200 relative to the first auxiliary cylinder 410.

[0050] In this embodiment, a first limiting ring 314 is fixedly arranged on the outer peripheral wall of the first main cylinder 310, and a first annular groove extending along its own circumference is opened on the first limiting ring 314. The third main cylinder 330 is rotatably arranged in the first annular groove, so that the third main cylinder 330 can only rotate relative to the first main cylinder 310.

[0051] A second limiting ring is fixedly provided on the outer peripheral wall of the first sub-cylinder 410 , and a second annular groove extending along its own circumference is opened on the second limiting ring. The third sub-cylinder 430 is rotatably provided in the second annular groove, so that the third sub-cylinder 430 can only rotate relative to the first sub-cylinder 410 .

[0052] In this embodiment, the steel flower tube grouting device further includes a connecting mechanism comprising a first telescopic tube 360, a second telescopic tube 460, and a spring. One end of the first telescopic tube 360 ​​is fixedly connected to the end of the first main tube 310 near the bottom of the flower tube 200. One end of the second telescopic tube 460 is fixedly connected to the end of the first secondary tube 410 near the top of the flower tube 200. The other end of the second telescopic tube 460 is inserted into the other end of the first telescopic tube 360. One end of the spring is fixedly connected to the other end of the second telescopic tube 460, and the other end of the spring is fixedly connected to the inner wall of the first telescopic tube 360.

[0053] In this embodiment, the steel flower pipe grouting device also includes a straight pipe 100, which extends along the axial direction of the flower pipe 200. One end of the straight pipe 100 is connected to the top of the flower pipe 200. The length of the straight pipe 100 can be adjusted according to the length of the hole 600, so that the device can adapt to holes 600 of different depths.

[0054] In this embodiment, the steel flower pipe grouting device further includes a limiting mechanism, which includes a sealing cap 510. After the steel flower pipe grouting device is placed in the hole 600, the sealing cap 510 is fitted over the straight pipe 100. The hole 600 has an entrance, and the sealing cap 510 is disposed at the entrance of the hole 600. The sealing cap 510 is used to seal the gap between the entrance of the hole 600 and the straight pipe 100, thereby preventing slurry from leaking out of the entrance of the hole 600.

[0055] In this embodiment, the sealing cover 510 is provided with a feed hole, and the steel flower pipe grouting device further includes a feed pipe, which is arranged at the feed hole and is used to grout the space between the device and the hole 600 .

[0056] Working process: Place the device within hole 600, with the bottom end of the floral tube 200 at the bottom of hole 600. Then, install the sealing cap 510 on the straight tube 100, at the entrance of the device. In the initial state, both the first rubber bladder 340 and the second rubber bladder 440 are in the first state, and the sixth through hole 412 is connected to the second through hole 220. That is, the second rubber bladder 440 is connected to the second through hole 220.

[0057] The grouting process of the steel flower tube grouting device of this embodiment includes:

[0058] Step 1: Grout is injected into hole 600 through the feed tube, filling the gap between the device and hole 600. Grout is also injected into straight tube 100, maintaining the same low pressure P1 inside and outside of floral tube 200. Grouting is performed in a full-section manner first, allowing the slurry to initially provide some support to the wall of hole 600, further preventing wall collapse. The slurry in straight tube 100 enters floral tube 200, passes through first through-hole 210 and fifth through-hole 312, and enters first rubber bladder 340, causing it to expand, increasing its diameter. The slurry then passes through second through-hole 220 and sixth through-hole 412 and enters second rubber bladder 440, causing it to expand, increasing its diameter.

[0059] When the space between the device and the hole 600 is filled with slurry, as shown in FIG6 , the first rubber bag 340 and the second rubber bag 440 change from the first state to the second state, and the first rubber bag 340 and the second rubber bag 440 are against the hole wall.

[0060] Step 2: First, rotate the floral tube 200 forward. As shown in Figure 7, the floral tube 200 drives the first main cylinder 310 and the first auxiliary cylinder 410 to rotate forward synchronously. At this time, the second main cylinder 320 moves toward the top of the floral tube 200 relative to the first main cylinder 310. The first baffle 321 moves toward the top of the floral tube 200, thereby increasing the thickness of the first rubber bladder 340 and reducing its radius. The first rubber bladder 340 transitions from the second state to the third state.

[0061] The first sub-cylinder 410 rotates forward, and the second sub-cylinder 420 moves relative to the first sub-cylinder 410 toward the top of the floral tube 200. The third baffle 421 moves toward the top of the floral tube 200, causing the thickness of the second rubber bladder 440 to decrease and its radius to increase, transitioning the second rubber bladder 440 from the second state to the fourth state. At this point, the second rubber bladder 440 is severely inflated and in close contact with the hole wall. Slurry continues to be injected into the space between the second rubber bladder 440 and the bottom of the hole 600 through the third and fourth through-holes 230 and 240. At this point, the pressure in the space between the second rubber bladder 440 and the bottom of the hole 600 is P2, with P2 > P1.

[0062] Step 3: Next, move the floral tube 200 toward the entrance of the hole 600. As shown in Figure 8, since the second rubber bladder 440 is now severely inflated, the movement of the floral tube 200 only drives the first sealing mechanism 300 to move synchronously, thereby connecting the second rubber bladder 440 with the third through-hole 230. The second through-hole 220 is located between the first rubber bladder 340 and the second rubber bladder 440. The spring is now stretched. As the floral tube 200 moves, the slurry continues to be injected into the space between the second rubber bladder 440 and the bottom of the hole 600 through the fourth through-hole 240, maintaining the pressure in the space between the second rubber bladder 440 and the bottom of the hole 600 at P2.

[0063] Step 4: Rotate the floral tube 200 in the opposite direction. As shown in FIG9 , the second main cylinder 320 moves toward the bottom end of the floral tube 200 relative to the first main cylinder 310. The first baffle 321 moves toward the bottom end of the floral tube 200. The thickness of the first rubber bladder 340 decreases and its radius increases. The first rubber bladder 340 transforms from the third state to the second state.

[0064] The second sub-tube 420 moves relative to the first sub-tube 410 toward the bottom of the floral tube 200, and the third baffle 421 moves toward the bottom of the floral tube 200, thereby increasing the thickness and decreasing the radius of the second rubber bladder 440, and the second rubber bladder 440 transitions from the fourth state to the second state. Grout is injected between the first rubber bladder 340 and the second rubber bladder 440 through the second through-hole 220, resulting in a pressure between the first rubber bladder 340 and the second rubber bladder 440 of P2.

[0065] Step 5: Continue rotating the floral tube 200 in the opposite direction. As shown in Figure 10 , the thickness of the first rubber bladder 340 continues to decrease, while its radius continues to increase. The first rubber bladder 340 transitions from the second state to the fourth state, at which point the first rubber bladder 340 is severely inflated. The thickness of the second rubber bladder 440 continues to increase, while its radius continues to decrease. The second state transitions from the second state to the third state.

[0066] Step 6: Under the action of the spring, the second blocking mechanism 400 moves toward the entrance of the hole 600, as shown in Figure 11, so that the second rubber bag 440 is connected to the second through hole 220. At this time, the pressure between the first rubber bag 340 and the bottom of the hole 600 is P2.

[0067] Step 7: Rotate the floral tube 200 forward. As shown in FIG. 12 , the first rubber bag 340 is transformed from the fourth state to the second state, and the second rubber bag 440 is transformed from the third state to the second state.

[0068] Repeat steps 2 through 7 until the first rubber bladder 340 reaches the exit, and both the first and second rubber bladders 340 and 440 are in the second state. The grouting volume in the floral tube 200 is reduced, thereby reducing the pressure inside the floral tube 200 to less than P2. At this point, due to the pressure difference between the inside and outside of the floral tube 200, the first and second rubber bladders 340 and 440 transition from the second state to the first state. At this point, the first and second rubber bladders 340 and 440 no longer contact the wall of the hole 600, pulling the floral tube 200 upward, causing the floral tube 200 to move the first and second sealing mechanisms 300 and 400 synchronously upward, thereby lifting the steel floral tube grouting device out of the hole 600. The remaining portion of the hole 600 is then filled through the feed tube.

[0069] Alternatively, when the first rubber bladder 340 reaches the exit, and both the first rubber bladder 340 and the second rubber bladder 440 are in the second state, the floral tube 200 is first rotated forward, so that the first rubber bladder 340 is in the third state and the second rubber bladder 440 is in the fourth state. The floral tube 200 is then moved toward the entrance of the hole 600, thereby moving the first blocking mechanism 300 out of the hole 600. The floral tube 200 is then reversed again, so that the second rubber bladder 440 is in the third state. The floral tube 200 is then moved toward the entrance of the hole 600, thereby moving the second blocking mechanism 400 out of the hole 600.

[0070] In other embodiments, different from the above embodiments, the connecting mechanism can also be replaced by an electric telescopic rod, one end of which is fixedly connected to the end of the first main tube 310 near the bottom end of the flower tube 200, and the other end of the electric telescopic rod is fixedly connected to the end of the first secondary tube 410 near the top end of the flower tube 200.

Claims

1. A steel flower tube grouting device for grouting into a hole, characterized in that: It comprises a flower tube, a first blocking mechanism and a second blocking mechanism, the flower tube has a top end and a bottom end, and the flower tube is provided with a first through hole, a second through hole, a third through hole and a fourth through hole in sequence from the top end and the bottom end; The first plugging mechanism includes a first main cylinder and a first rubber bag, wherein the first main cylinder is fixedly sleeved on the flower tube, the first rubber bag is rotatably sleeved on the first main cylinder, and the first rubber bag is communicated with the first through hole; the second plugging mechanism includes a first auxiliary cylinder and a second rubber bag, wherein the first auxiliary cylinder can be slidably sleeved on the flower tube along its own axis, and the first auxiliary cylinder and the flower tube rotate synchronously; the second rubber bag is rotatably sleeved on the first auxiliary cylinder, and the second rubber bag is used to communicate with the second through hole or the third through hole; The first rubber bag and the second rubber bag are both annular, and both have a first state, a second state, a third state, and a fourth state; in the first state, the diameters of the first rubber bag and the second rubber bag are smaller than the diameters of the hole, and in the second state, the diameters of the first rubber bag and the second rubber bag are the same as the diameters of the hole, and the thicknesses of the first rubber bag and the second rubber bag in the second state are the same as those in the first state; The third state is that the diameters of the first rubber bag and the second rubber bag are smaller than the diameters of the hole, and the thicknesses of the first rubber bag and the second rubber bag in the third state are greater than those of the first rubber bag and the second rubber bag in the first state; the fourth state is that the diameters of the first rubber bag and the second rubber bag are larger than the diameters of the hole, and the thicknesses of the first rubber bag and the second rubber bag in the fourth state are less than those of the first rubber bag and the second rubber bag in the first state; The first blocking mechanism also includes a second main cylinder and a third main cylinder, and the second main cylinder and the third main cylinder both extend along the axial direction of the floral tube; The second main cylinder is rotatably sleeved on the first main cylinder, and the second main cylinder can slide along the axis of the first main cylinder; One side of the first rubber bag is fixedly connected to one end of the second main tube near the bottom of the flower tube; the third main tube is rotatably sleeved on the first main tube, and the third main tube moves synchronously with the first main tube; one side of the first rubber bag is fixedly connected to one end of the third main tube near the top of the flower tube; The second blocking mechanism also includes a second sub-cylinder and a third sub-cylinder, both of which extend along the axial direction of the flower tube; the second sub-cylinder is rotatably sleeved on the first sub-cylinder, and the second sub-cylinder can slide along the axis of the first sub-cylinder; the second rubber bag is sleeved on the first sub-cylinder, and one side of the second rubber bag is fixedly connected to an end of the second sub-cylinder close to the top end of the flower tube; the third sub-cylinder is rotatably sleeved on the first sub-cylinder, and the third sub-cylinder and the first sub-cylinder move synchronously, and the other side of the second rubber bag is fixedly connected to an end of the third sub-cylinder close to the bottom end of the flower tube; the first rubber bag includes a first support ring, a first annular plate, a second annular plate and a first rubber ring; the first support ring is sleeved on the first main cylinder, the first annular plate is fixedly connected to a side of the first support ring close to the top end of the flower tube, and the second annular plate is fixedly connected to a side of the first support ring close to the bottom end of the flower tube; the two sides of the first rubber ring are respectively fixedly connected to the first annular plate and the second annular plate; The second rubber bag includes a second support ring, a third annular plate, a fourth annular plate and a second rubber ring; the second support ring is sleeved on the first secondary tube, the third annular plate is fixedly connected to a side of the second support ring close to the bottom end of the flower tube, the fourth annular plate is fixedly connected to a side of the second support ring close to the top end of the flower tube, and both sides of the second rubber ring are fixedly connected to the third annular plate and the fourth annular plate respectively; A first baffle is fixedly provided at one end of the second main tube close to the bottom end of the flower tube, and the first baffle is fixedly connected to the first annular plate; a second baffle is fixedly provided at one end of the third main tube close to the top end of the flower tube, and the second baffle is fixedly connected to the second annular plate; a first baffle ring is fixedly provided on the peripheral wall of the first main tube, and the first baffle ring is used to limit the distance that the first baffle moves on the first main tube; A third baffle is fixedly provided at one end of the second sub-tube close to the top end of the flower tube, and the third baffle is fixedly connected to the third annular plate; a fourth baffle is fixedly provided at one end of the third sub-tube close to the bottom end of the flower tube, and the fourth baffle is fixedly connected to the fourth annular plate; a second baffle ring is fixedly provided on the peripheral wall of the first sub-tube, and the second baffle ring is used to limit the distance that the third baffle moves on the first sub-tube; The second main tube is provided with a first internal thread on its inner peripheral wall, and the first main tube is provided with a first external thread on its outer peripheral wall, and the first external thread and the first internal thread are threadedly matched; when the first main tube rotates forward relative to the second main tube, the second main tube moves toward the top end of the flower tube relative to the first main tube; when the first main tube rotates reversely relative to the second main tube, the second main tube moves toward the bottom end of the flower tube relative to the first main tube; The second sub-tube is provided with a second internal thread on the inner peripheral wall, and the first sub-tube is provided with a second external thread on the outer peripheral wall. The second internal thread and the second external thread are threadedly matched. When the first sub-tube rotates forward relative to the second sub-tube, the second sub-tube moves toward the top end of the flower tube relative to the first sub-tube. When the first sub-tube rotates reversely relative to the second sub-tube, the second sub-tube moves toward the bottom end of the flower tube relative to the first sub-tube. The steel flower tube grouting device also includes a connecting mechanism, which includes a first telescopic tube, a second telescopic tube and a spring; one end of the first telescopic tube is fixedly connected to an end of the first main tube close to the bottom end of the flower tube, one end of the second telescopic tube is fixedly connected to an end of the first secondary tube close to the top end of the flower tube, and the other end of the second telescopic tube is inserted into the interior of the other end of the first telescopic tube; one end of the spring is fixedly connected to the other end of the second telescopic tube, and the other end of the spring is fixedly connected to the inner wall of the first telescopic tube.

2. A steel flower tube grouting device according to claim 1, characterized in that: A first limiting ring is fixedly arranged on the outer circumferential wall of the first main cylinder, and a first annular groove extending along its own circumference is formed on the first limiting ring, and the third main cylinder is rotatably arranged in the first annular groove; a second limiting ring is fixedly arranged on the outer circumferential wall of the first auxiliary cylinder, and a second annular groove extending along its own circumferential direction is formed on the second limiting ring, and the third auxiliary cylinder is rotatably arranged in the second annular groove.

3. A steel flower tube grouting device according to claim 1, characterized in that: The steel flower pipe grouting device also includes a straight pipe, which extends along the axial direction of the flower pipe, and one end of the straight pipe is connected to the top of the flower pipe.

4. A steel flower tube grouting device according to claim 3, characterized in that: The steel flower pipe grouting device also includes a limiting mechanism, which includes a sealing cover; when the steel flower pipe grouting device is placed in the hole, the sealing cover is sleeved on the straight pipe; the hole has an entrance, and the sealing cover is arranged at the entrance of the hole, and the sealing cover is used to seal the gap between the entrance of the hole and the straight pipe.

5. A steel flower tube grouting device according to claim 4, characterized in that: The sealing cover is provided with a feeding hole, and the steel flower pipe grouting device also includes a feeding pipe, which is arranged at the feeding hole.

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