CN110258552B

CN110258552B - Mechanical linkage anti-pulling anchor rod

Info

Publication number: CN110258552B
Application number: CN201910563745.1A
Authority: CN
Inventors: 不公告发明人
Original assignee: Nanjing Liuhe Hi Tech Construction Development Co ltd
Current assignee: Nanjing Liuhe hi tech Construction Development Co.,Ltd.
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2021-09-21
Anticipated expiration: 2039-06-26
Also published as: CN110258552A

Abstract

The invention relates to the field of anchor rods, in particular to a mechanical linkage uplift anchor rod, which comprises a supporting structure, a fixing structure, a rotating structure, a fastening structure and a sliding structure, wherein the supporting structure is arranged on the supporting structure; in the fixed rod pivoted in-process, make the grout mouth that is close to the supporting seat communicate with the first grout outlet hole that is close to the supporting seat at first, pour into grout into first grout outlet hole inside, continue to rotate the fixed rod, make the grout mouth that is located the centre communicate with the first grout outlet hole that is close to the fixed block, pour into grout, continue to rotate the fixed rod, make the grout mouth that is located the fixed block inside communicate with second grout outlet hole, pour into grout, make the gag lever post get into the stratum and increase the area of contact of stock and stratum in-process from up down gradually pour into the anchor hole with the grout layer by layer into, make the gag lever post roll-off the fixed block inside completely after, increase the area of contact of stock and stratum, make the fixed column make grout pour into the anchor hole into when firmly fixed in the anchor hole.

Description

Mechanical linkage anti-pulling anchor rod

Technical Field

The invention relates to the field of anchor rods, in particular to a mechanical linkage uplift anchor rod.

Background

The anchor rod is the most basic component of roadway support in the contemporary coal mine, and the anchor rod consolidates the surrounding rocks of the roadway to support the surrounding rocks, and the anchor rod is not only used for mines, but also used in engineering technology to perform main body reinforcement on side slopes, tunnels and dam bodies.

The stock upwards comes in and goes out the tunnel top in the tunnel inside and meets the weak soil, and stock and rock stratum area of contact are less, and the stock slides easily in anchor eye inside, makes the resistance to plucking ability of stock weak, and the anchor eye that drops easily reduces ground intensity and stability, and the stock makes stock and ground layer fastening from up inconvenient injected cement down in anchor eye inside to be unfavorable for the fixed of stock.

Disclosure of Invention

In order to make up for the defects of the prior art, the mechanical linkage uplift anchor rod provided by the invention is particularly suitable for a humid environment.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a mechanical linkage anti-pulling anchor rod, which comprises a supporting structure, a fixing structure, a rotating structure, a fastening structure and a sliding structure, wherein the supporting structure is fixedly arranged on the supporting structure; be used for fastening ground, support the inside rotation of bearing structure is connected with and is used for the drive rotating-structure, the bearing structure bottom is installed and is used for perforating, fixed knot structure, rotating-structure rotate connect in inside the fixed knot constructs, the inside sliding connection of fixed knot constructs is used for inserting ground and goes on fixing sliding structure, the sliding structure meshing connect in the rotating-structure bottom, rotating-structure externally mounted has and is used for fixing rotating-structure fastening structure, fastening structure rotate connect in the bearing structure top.

Preferably, the supporting structure comprises a third nut, a supporting seat, a second inclined thread, a fixed column, a groove, a first slurry outlet hole, a blade and first sliding grooves, the second inclined thread with an included angle of 30 degrees with the fixed column is installed at the top end of the outer portion of the fixed column, the supporting seat is in threaded connection with the outer portion of the second inclined thread, the supporting seat is in rotary connection with the top end of the outer portion of the fixed column, the third nut is welded at the top end of the supporting seat, the third nut is in rotary connection with the top end of the outer portion of the fixed column, a plurality of grooves with downward openings and a semi-circular arc structure are formed in the bottom end of the inner portion of the supporting seat, two first slurry outlet holes are formed in the inner side wall of the fixed column, two first sliding grooves with an annular structure are formed in the inner portion of the fixed column, and are respectively communicated with one first slurry outlet hole, a blade with the width same as the depth of the first sliding groove is fixed in each of the two first sliding grooves; the supporting seat is supported on the surface of the rock and soil more tightly through the groove, cement paste is injected into the anchor hole layer by layer through the three grouting ports, the rubber plug inside the grouting port is plugged into the first sliding groove to rotate inside the first sliding groove and enable the rubber plug to be scratched when the blade is in contact with the rubber plug, so that the cement paste inside the fixing rod can flow into the first grout outlet and the second grout outlet through the grouting ports, and the cement paste cannot flow into gaps between the fixing rod and the inner side walls of the fixing columns when the anchor hole is not injected.

Preferably, the fixing structure comprises fixing teeth, a fixing block and a second slurry outlet, the fixing block is fixed at the bottom end of the fixing column and is of a conical structure, multiple layers of the fixing teeth with an inclination angle of 30 ° are welded outside the fixing block, the fixing teeth are symmetrically distributed about the center line of the fixing block, the second slurry outlet is formed in the fixing block, the second slurry outlet and the two first slurry outlet are distributed in the fixing block and the fixing column in a stepped manner, the first chute is formed in the fixing block, and the blade is fixed in the first chute; the fixing block of the conical structure is convenient to insert the fixing column into the anchor hole for fixing, the fixing blocks are favorable for fixing when slurry is injected into the anchor hole through multiple layers of fixing teeth, the tightness of the fixing column in the anchor hole is reinforced, and cement slurry injected into the fixing rod enters the two second grout outlet holes from the grouting port and then enters the anchor hole.

Preferably, the rotating structure comprises a first nut, a fixing rod, a first helical thread, helical gears, grouting ports and a rubber plug, the fixing rod with a length larger than that of the fixing rod with a hollow structure is rotatably connected inside the fixing column, the bottom end of the fixing rod is rotatably connected inside the fixing block, the first nut is fixed at the top end of the fixing rod, the first nut is rotatably connected at the top end of the fixing column, the first helical thread with an included angle of 30 degrees is installed at the top end of the fixing rod, the first helical thread is located at the top end of the fixing column, two helical gears with an inclination angle of 30 degrees are fixed at the bottom end outside the fixing rod, the two helical gears are rotatably connected inside the fixing block, three equidistant grouting ports are formed inside the fixing rod, and the three grouting ports are communicated with the fixing rod inside the fixing rod, the three grouting ports are vertically distributed on the fixed rod, the vertical distance between the two first grouting holes and the vertical distance between the first grouting hole and the second grouting hole which are close to the fixed block are the same as the distance between the two grouting ports, the second grouting hole and the grouting port at the bottommost end are positioned at the same height, one rubber plug is sleeved inside each of the three grouting ports, the three rubber plugs are respectively connected inside the three first sliding grooves in a sliding mode, and the blade is positioned between the first grouting hole and the grouting port at the same angle; through rotating first nut, make the dead lever rotates and drives two the helical gear is in the inside rotation of fixed block to can make the gag lever post can follow in the fixed block go out and insert the anchor eye, thereby make the fixed block with the dead lever can be more stable fix in the anchor eye dead lever pivoted in-process makes and is close to the supporting seat grouting port first with be close to the supporting seat first grout outlet intercommunication, with grout injection first grout outlet inside the hole continues to rotate the dead lever makes and is located in the middle of grouting port with be close to the fixed block first grout outlet intercommunication, injection grout continues to rotate the dead lever makes and is located inside the fixed block grouting port with second grout outlet intercommunication, injection grout, makes like this the gag lever post gets into the in-process that the area of contact of stratum increase stock and stratum gradually from up down pours into grout into the anchor eye into the grout layer by layer into in the in-process .

Preferably, the fastening structure comprises a second nut and an internal thread cap, the internal thread cap is rotatably connected to the outside of the fixing rod, the internal thread cap is rotatably connected to the top end of the first inclined thread, the second nut is fixed to the top end of the internal thread cap, the second nut is rotatably connected to the outside of the fixing rod, and the second nut is rotatably connected between the top end of the first inclined thread and the bottom end of the first nut; the second nut is rotated to enable the second nut to be in threaded connection with the inside of the first inclined thread, and the internal thread cap to be in threaded connection with the inside of the second inclined thread at the top end of the outer portion of the fixed column, so that the fixed rod can be fixed inside the fixed column, the inclined wheel is fixed, and the limiting rod cannot enter the inside of the fixed block after sliding out of the fixed block.

Preferably, the sliding structure comprises a limiting rod, a second sliding groove, a gear track, a clamping groove, a limiting block, a limiting groove and a limiting tooth, wherein four second sliding grooves with an included angle of 30 degrees with the fixed block are arranged in the fixed block, the four second sliding grooves are symmetrically distributed about the central line of the fixed block, the limiting rod with an included angle of 30 degrees with the fixed block is connected in each of the four second sliding grooves in a sliding manner, the four limiting rods are symmetrically distributed about the central line of the fixed block, the limiting teeth in a triangular structure are arranged at the top ends of the four limiting rods, the limiting teeth are connected in the second sliding grooves in a sliding manner, the clamping groove is arranged in each of the limiting rods, the gear track with an inclination angle of 30 degrees is fixed in each clamping groove, the gear track is connected in the helical gear in a meshing manner, and the limiting rods are connected in the second sliding grooves in a sliding manner through the gear track and the helical gear, one side of the inside of the fixed block is provided with the limiting groove in a spherical structure, one side of the limiting rod is fixedly provided with the limiting block in a hemispherical structure, and the diameter of the limiting block is smaller than that of the limiting groove; the four limiting rods are driven by the two bevel gears to slide in the fixing block, so that the four limiting rods are obliquely inserted into rock soil on two sides of the anchor hole, the limiting rods are tightly fixed in the rock soil through the limiting teeth, the fixing column is tightly fixed in the anchor hole through the limiting rods, the pulling resistance of the fixing column is improved, the limiting blocks are driven by the limiting rods to enter the limiting grooves through the sliding of the limiting rods, and the limiting rods are prevented from sliding out of the fixing block in the sliding process driven by the bevel gears and the gear tracks.

Drawings

The invention will be further explained with reference to the drawings.

Fig. 1 is a schematic view of the overall structure of a preferred embodiment of a mechanical linkage uplift anchor rod provided by the invention;

FIG. 2 is a schematic structural view of the internal structure shown in FIG. 1;

FIG. 3 is a top view of the attachment of the mounting block shown in FIG. 1;

FIG. 4 is an enlarged view of the part A shown in FIG. 2;

FIG. 5 is a schematic structural view of the support structure shown in FIG. 1;

FIG. 6 is a schematic view of the connection of the rotating structure and the support structure shown in FIG. 1;

fig. 7 is a schematic structural view of the rotating structure shown in fig. 1.

In the figure: 1. rotating-structure, 11, first nut, 12, dead lever, 13, first oblique screw thread, 14, helical gear, 15, slip casting mouth, 16, rubber buffer, 2, fastening structure, 21, second nut, 22, internal screw cap, 3, bearing structure, 31, third nut, 32, supporting seat, 33, second oblique screw thread, 34, fixed column, 35, recess, 36, first grout outlet, 37, blade, 38, first spout, 4, fixed structure, 41, fixed tooth, 42, fixed block, 43, second grout outlet, 5, sliding structure, 51, gag lever post, 52, second spout, 53, gear track, 54, draw-in groove, 55, stopper, 56, spacing groove, 57, spacing tooth.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 7, the mechanical linkage uplift anchor rod of the invention comprises a supporting structure 3, a fixing structure 4, a rotating structure 1, a fastening structure 2 and a sliding structure 5; be used for fastening ground, support 3 inside rotations of bearing structure are connected with and are used for the drive rotating-

structure

1, 3 bottoms of bearing structure are installed and are used for perforating, fixed knot structure 4, rotating-structure 1 rotate connect in inside fixed knot structure 4, the inside sliding connection of fixed knot structure 4 has and is used for inserting ground and go on fixing sliding structure 5, sliding structure 5 mesh connect in rotating-structure 1 bottom, rotating-structure 1 externally mounted has and is used for fixing rotating-structure 1 fastening structure 2, fastening structure 2 rotate connect in 3 tops of bearing structure.

Specifically, the supporting structure 3 includes a third nut 31, a supporting seat 32, a second inclined thread 33, a fixing column 34, a groove 35, a first slurry outlet hole 36, a blade 37 and a first sliding groove 38, the second inclined thread 33 having an included angle of 30 ° with the fixing column 34 is installed at the top end of the outside of the fixing column 34, the supporting seat 32 is connected to the outside of the second inclined thread 33 by a thread, the supporting seat 32 is rotatably connected to the top end of the outside of the fixing column 34, the third nut 31 is welded to the top end of the supporting seat 32, the third nut 31 is rotatably connected to the top end of the outside of the fixing column 34, a plurality of grooves 35 having a semi-circular arc structure and a downward opening are opened at the bottom end of the inside of the supporting seat 32, two first slurry outlet holes 36 are opened on the fixing column 34, two first sliding grooves 38 having an annular structure are opened inside the fixing column 34, the two first sliding chutes 38 are respectively communicated with one first slurry outlet hole 36, and a blade 37 with the width being the same as the depth of the first sliding chute 38 is fixed inside each of the two first sliding chutes 38; the fixing column 34 enters an anchor hole to extrude, fix and fasten rock soil, the supporting seat 32 is used for adjusting the length of the fixing column 34 entering the anchor hole, the supporting seat 32 can be supported on the surface of the rock soil more tightly through the groove 35, cement slurry is injected into the anchor hole through the three grouting ports 15 in a layered mode, the rubber plug 16 inside the grouting port 15 rotates inside the first sliding groove 38 and contacts with the blade 37, the rubber plug 16 is cut through, the cement slurry inside the fixing rod 12 can flow into the first slurry outlet hole 36 and the second slurry outlet hole 43 through the grouting port 15, and the cement slurry cannot flow into a gap between the inner side walls of the fixing rod 12 and the fixing column 34 when the cement slurry is not injected into the anchor hole.

Specifically, the fixed structure 4 includes a fixed tooth 41, a fixed block 42 and a second slurry outlet 43, the fixed block 42 is fixed at the bottom end of the fixed column 34 and is in a "conical" structure, multiple layers of the fixed teeth 41 with an inclination angle of 30 ° are welded outside the fixed block 42, the fixed teeth 41 are symmetrically distributed about the center line of the fixed block 42, the second slurry outlet 43 is formed inside the fixed block 42, the second slurry outlet 43 and the two first slurry outlet 36 are distributed in a step shape on the fixed block 42 and the fixed column 34, the first chute 38 is formed inside the fixed block 42, and the blade 37 is fixed inside the first chute 38; the fixing block 42 with a conical structure is convenient to insert the fixing column 34 into an anchor hole for fixing, the fixing block 42 is convenient to fix when slurry is injected into the anchor hole through the multiple layers of fixing teeth 41, the tightness of the fixing column 34 in the anchor hole is reinforced, and cement slurry injected into the fixing rod 12 enters the two second slurry outlet holes 43 from the grouting port 15 and then enters the anchor hole.

Specifically, the rotating structure 1 includes a first nut 11, a fixing rod 12, a first helical thread 13, a helical gear 14, a grouting port 15 and a rubber plug 16, the fixing rod 12, which is longer than the fixing rod 34 and has a hollow structure inside, is rotatably connected inside the fixing rod 34, the bottom end of the fixing rod 12 is rotatably connected inside the fixing block 42, the first nut 11 is fixed at the top end of the fixing rod 12, the first nut 11 is rotatably connected at the top end of the fixing rod 34, the first helical thread 13, which forms an included angle of 30 degrees with the fixing rod 12, is installed at the top end of the fixing rod 12, the first helical thread 13 is located at the top end of the fixing rod 34, two helical gears 14, which have an inclination angle of 30 degrees, are fixed at the bottom end outside the fixing rod 12, both the two helical gears 14 are rotatably connected inside the fixing block 42, and three equidistant grouting ports 15 are opened inside, the three grouting ports 15 are all communicated with the inside of the fixing rod 12, the three grouting ports 15 are vertically distributed on the fixing rod 12, the vertical distance between the two first grout outlet holes 36 and the vertical distance between the first grout outlet hole 36 and the second grout outlet hole 43 which are close to the fixing block are all the same as the distance between the two grouting ports 15, the second grout outlet hole 43 and the lowest grouting port 15 are located at the same height, one rubber plug 16 is sleeved inside each of the three grouting ports 15, the three rubber plugs 16 are respectively connected inside the three first sliding grooves 38 in a sliding manner, and the blade 37 is located between the first grout outlet hole 36 and the grouting port 15 at the same angle; the fixing rod 12 is rotated to drive the two bevel gears 14 to rotate inside the fixing block 42 by rotating the first nut 11, so that the limiting rod 51 can be led out of the fixing block 42 and inserted into an anchor hole, and the fixing block 42 and the fixing rod 12 can be more stably fixed in the anchor hole, in the rotating process of the fixing rod 12, the grouting port 15 close to the supporting seat 32 is firstly communicated with the first grout outlet 36 close to the supporting seat 32, cement grout is injected into the first grout outlet 36, the fixing rod 12 is continuously rotated to communicate the grouting port 15 in the middle with the first grout outlet 36 close to the fixing block 42, and the fixing rod 12 is continuously rotated to communicate the grouting port 15 in the fixing block 42 with the second grout outlet 43, and cement paste is injected, so that the cement paste is gradually injected into the anchor hole layer by layer from bottom to top in the process that the limiting rod 51 enters the rock stratum to increase the contact area of the anchor rod and the rock stratum.

Specifically, the fastening structure 2 includes a second nut 21 and an internal thread cap 22, the internal thread cap 22 is rotatably connected to the outside of the fixing rod 12, the internal thread cap 22 is rotatably connected to the top end of the first inclined thread 13, the second nut 21 is fixed to the top end of the internal thread cap 22, the second nut 21 is rotatably connected to the outside of the fixing rod 12, and the second nut 21 is rotatably connected between the top end of the first inclined thread 13 and the bottom end of the first nut 11; by rotating the second nut 21, the second nut 21 is screwed into the first inclined thread 13, and the internal thread cap 22 is screwed into the second inclined thread 33 at the top end of the outer portion of the fixed column 34, so that the fixed rod 12 can be fixed inside the fixed column 34, the helical gear 14 is fixed, and the limit rod 51 cannot enter the fixed block 42 after sliding out of the fixed block 42.

Specifically, the sliding structure 5 includes a limiting rod 51, a second sliding groove 52, a gear track 53, a clamping groove 54, a limiting block 55, a limiting groove 56 and a limiting tooth 57, the fixed block 42 is provided with four second sliding grooves 52 forming an included angle of 30 degrees with the fixed block 42, the four second sliding grooves 52 are symmetrically distributed about a central line of the fixed block 42, the four second sliding grooves 52 are connected with one limiting rod 51 forming an included angle of 30 degrees with the fixed block 42 in a sliding manner, the four limiting rods 51 are symmetrically distributed about the central line of the fixed block 42, the top ends of the four limiting rods 51 are provided with the limiting teeth 57 forming a triangular structure, the limiting teeth 57 are connected in the second sliding grooves 52 in a sliding manner, the clamping groove 54 is provided in the limiting rods 51, and the gear track 53 having an inclination angle of 30 degrees is fixed in the clamping groove 54, the gear track 53 is engaged and connected inside the helical gear 14, the limiting rod 51 is slidably connected inside the second sliding groove 52 through the gear track 53 and the helical gear 14, a limiting groove 56 in a spherical structure is formed in one side inside the fixed block 42, a limiting block 55 in a hemispherical structure and smaller than the diameter of the limiting groove 56 is fixed on one side of the limiting rod 51, and the limiting block 55 is slidably connected outside the limiting groove 56; the four limit rods 51 are driven by the two bevel gears 14 to slide in the fixed block 42, so that the four limit rods 51 are obliquely inserted into rock soil on two sides of an anchor hole, the limit rods 51 are tightly fixed in the rock soil through the limit teeth 57, the fixed column 34 is tightly fixed in the anchor hole through the limit rods 51, the pulling resistance of the fixed column 34 is improved, the limit blocks 55 are driven by the limit rods 51 to enter the limit grooves 56 through the sliding, and the limit rods 51 are prevented from sliding out of the fixed block 42 in the driving sliding process of the bevel gears 14 and the gear tracks 53.

When in use, firstly, the fixed column 34 and the fixed block 42 are inserted into an anchor hole at the top end of a tunnel, the fixed block is positioned at the top end of the fixed column, cement slurry is injected into the fixed rod to push the fixed column 34 to extrude and fix rock soil in the anchor hole, the stability of the rock soil is increased, the third nut 31 is rotated to rotate the supporting seat 32 on the fixed column 34 to adjust the length of the fixed column 34 entering the anchor hole, the first nut 11 is rotated to rotate the fixed rod 12 in the fixed column 34 and the fixed block 42 for a certain distance, the helical gear 14 is rotated in the fixed block 42 to slowly slide the limiting rod 51 out of the fixed block 42, and the limiting rod 51 forming an included angle of 30 degrees with the fixed block 42 is obliquely inserted into the rock soil around the anchor hole, dead lever 12 pivoted in-process, blade 37 rips rubber buffer 16, makes and is close to supporting seat 32 grouting opening 15 first with be close to supporting seat 32 first grout outlet 36 communicates, pours into grout into first grout outlet 36 inside, continues to rotate dead lever 12, makes and is located the centre grouting opening 15 with be close to fixed block 42 first grout outlet 36 communicates pours into grout into, continues to rotate dead lever 12, makes and is located inside the fixed block 42 grouting opening 15 with second grout outlet 43 communicates, pours into grout into, makes like this the gag lever 51 get into the in-process that the area of contact of rock stratum increase stock and rock stratum gradually from up pours into the grout layer by layer into the anchor hole into down, makes gag lever 51 roll-off completely behind fixed block 42 is inside, increases the area of contact of stock and rock stratum, the fixing post 34 is firmly fixed in the anchor hole while grout is injected into the anchor hole, after the grout is injected, the through hole of the fixing post 12 is sealed, the second nut 21 enters the first inclined thread 13 on the fixing post 12 by rotating the second nut 21, the internal thread cap 22 at the bottom end of the second nut 21 enters the second inclined thread 33 on the fixing post 34, the internal thread cap 21 is fixed on the fixing post 34, so that the fixing post 12 is fixed inside the fixing post 34 without rotating, and the bevel gear 14 at the bottom end of the fixing post 34 is fixed, so that the gear rail 53 engaged with the bevel gear 14 is fixed without sliding, the limiting rod 51 slides out of the inside of the fixing block 42 for fixing, and the limiting rod 51 is prevented from being squeezed by rock soil around the anchor hole and returning to the inside of the fixing block 42, the pulling resistance of the fixing column 34 is improved, the fixing column 34 is prevented from being separated from the anchor hole, the strength and the stability around the anchor hole rock soil are improved, the limiting teeth 57 with the triangular structure at the top end of the limiting rod 51 are used for clamping the limiting rod 51 in the rock soil when the limiting rod 51 enters the rock soil, and the limiting rod 51 is prevented from sliding into the fixing block 42; in the process of performing sectional grouting, the force of the rotation of the anchor rod can be smaller in the process of grouting the first section, the sliding mechanism 5 at the bottom can be partially rotated out, the sliding mechanism 5 can slide out partially again in the process of performing second section grouting, and finally the third section grouting is performed to slide out the whole sliding mechanism 5, so that the anchor rod is prevented from generating larger vibration and offset in the grouting process, and the grouting effect is better.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a mechanical linkage resistance to plucking stock which characterized in that: comprises a supporting structure (3), a fixed structure (4), a rotating structure (1), a fastening structure (2) and a sliding structure (5); the supporting structure (3) used for fastening rock soil and supporting is internally and rotatably connected with the rotating structure (1) used for driving, the fixed structure (4) used for perforating and fixing is installed at the bottom end of the supporting structure (3), the rotating structure (1) is rotatably connected inside the fixed structure (4), the sliding structure (5) used for inserting the rock soil and fixing is slidably connected inside the fixed structure (4), the sliding structure (5) is meshed and connected with the bottom end of the rotating structure (1), the fastening structure (2) used for fixing the rotating structure (1) is installed outside the rotating structure (1), and the fastening structure (2) is rotatably connected to the top end of the supporting structure (3); the supporting structure (3) comprises a third nut (31), a supporting seat (32), a second inclined thread (33), a fixing column (34), a groove (35), a first slurry outlet hole (36), a blade (37) and a first sliding groove (38), the second inclined thread (33) forming an included angle of 30 degrees with the fixing column (34) is installed at the top end of the outer portion of the fixing column (34), the supporting seat (32) is in threaded connection with the outer portion of the second inclined thread (33), the supporting seat (32) is in rotary connection with the top end of the outer portion of the fixing column (34), the third nut (31) is welded at the top end of the supporting seat (32), the third nut (31) is in rotary connection with the top end of the outer portion of the fixing column (34), the bottom end of the inner portion of the supporting seat (32) is provided with a plurality of grooves (35) with downward openings and of a semi-circular arc structure, and two first slurry outlet holes (36) are formed in the inner side wall of the fixing column (34), two first sliding chutes (38) which are of an annular structure are formed in the fixed column (34), the two first sliding chutes (38) are respectively communicated with one first slurry outlet hole (36), and a blade (37) with the width being the same as the depth of the first sliding chute (38) is fixed in each of the two first sliding chutes (38); the fixed structure (4) comprises fixed teeth (41), a fixed block (42) and second slurry outlet holes (43), the fixed block (42) in a conical structure is fixed at the bottom end of the fixed column (34), multiple layers of the fixed teeth (41) with the inclination angle of 30 degrees are welded outside the fixed block (42), the fixed teeth (41) are symmetrically distributed about the center line of the fixed block (42), the second slurry outlet holes (43) are formed inside the fixed block (42), the second slurry outlet holes (43) and two first slurry outlet holes (36) are distributed on the fixed block (42) and the fixed column (34) in a step shape, the first sliding grooves (38) are formed inside the fixed block (42), and the blades (37) are fixed inside the first sliding grooves (38); the rotating structure (1) comprises a first nut (11), a fixing rod (12), a first inclined thread (13), a bevel gear (14), a grouting opening (15) and a rubber plug (16), the inside of the fixing rod (34) is rotatably connected with the fixing rod (12) with the length larger than that of the fixing rod (34) which is internally of a hollow structure, the bottom end of the fixing rod (12) is rotatably connected with the inside of a fixing block (42), the top end of the fixing rod (12) is fixedly provided with the first nut (11), the first nut (11) is rotatably connected with the top end of the fixing rod (34), the top end of the fixing rod (12) is provided with the first inclined thread (13) which forms an included angle of 30 degrees with the fixing rod (12), the first inclined thread (13) is positioned at the top end of the fixing rod (34), and the bottom end of the outside of the fixing rod (12) is fixedly provided with two bevel gears (14) with inclination angles of 30 degrees, two helical gear (14) all rotate connect in inside fixed block (42), dead lever (12) is inside to have seted up three equidistance slip casting mouth (15), three slip casting mouth (15) all communicate in inside dead lever (12), three slip casting mouth (15) vertical distribution in dead lever (12), perpendicular distance between two first grout outlet hole (36), be close to the fixed block first grout outlet hole (36) with perpendicular distance between second grout outlet hole (43) all with two distance between slip casting mouth (15) is the same, second grout outlet hole (43) and bottom slip casting mouth (15) are located same height, three slip casting mouth (15) inside all cup joints one slip casting mouth (16), three rubber buffer (16) difference sliding connection is in three inside first spout (38), the blade (37) is positioned between the first slurry outlet hole (36) and the slurry injection port (15) at the same angle; the fastening structure (2) comprises a second nut (21) and an internal thread cap (22), the internal thread cap (22) is rotatably connected to the outer portion of the fixing rod (12), the internal thread cap (22) is rotatably connected to the top end of the first inclined thread (13), the second nut (21) is fixed to the top end of the internal thread cap (22), the second nut (21) is rotatably connected to the outer portion of the fixing rod (12), and the second nut (21) is rotatably connected between the top end of the first inclined thread (13) and the bottom end of the first nut (11); the sliding structure (5) comprises a limiting rod (51), a second sliding groove (52), a gear track (53), a clamping groove (54), a limiting block (55), a limiting groove (56) and limiting teeth (57), wherein four second sliding grooves (52) with included angles of 30 degrees are formed inside the fixing block (42), four second sliding grooves (52) are symmetrically distributed about the central line of the fixing block (42), one limiting rod (51) with the fixing block (42) with included angles of 30 degrees is connected inside the four second sliding grooves (52) in a sliding mode, the four limiting rods (51) are symmetrically distributed about the central line of the fixing block (42), the four limiting teeth (57) with triangular structures are formed in the top ends of the limiting rods (51), and the limiting teeth (57) are connected inside the second sliding grooves (52) in a sliding mode, the limiting device is characterized in that the clamping groove (54) is formed in the limiting rod (51), the gear track (53) with the inclination angle of 30 degrees is fixed in the clamping groove (54), the gear track (53) is connected to the interior of the helical gear (14) in a meshed mode, the limiting rod (51) is connected to the interior of the second sliding groove (52) in a sliding mode through the gear track (53) and the helical gear (14), the limiting groove (56) in a spherical structure is formed in one side of the interior of the fixing block (42), the limiting block (55) smaller than the diameter of the limiting groove (56) in a hemispherical structure is fixed on one side of the limiting rod (51), and the limiting block (55) is connected to the exterior of the limiting groove (56) in a sliding mode.