Foundation base plate, anti-floating anchor rod and construction method

Abstract

The application relates to the technical field of building anti-floating, and provides a foundation bottom plate, an anti-floating anchor rod and a construction method, solves the problem of low efficiency caused by slow cement slurry flow rate during grouting, and the foundation bottom plate comprises a base plate body, a first through hole arranged in the middle of the base plate body, a guide pipe arranged in the first through hole, a top end of the guide pipe exceeding the top surface of the base plate body, a bottom end of the guide pipe exceeding the bottom surface of the base plate body, three vertical columns mounted on the top surface of the base plate body, the three vertical columns being arranged in a ring shape around the periphery of the guide pipe, a bearing mounted on each vertical column, a polyurethane seat fixed to the outer ring of the bearing, and three hard rubber rings being extruded on the outer wall surface of the grouting pipe in three equiangular directions, so that the grouting pipe can be kept vertical when being put into a construction hole with a larger diameter, and the anti-floating anchor rod filled in the grouting pipe and put into the construction hole is kept vertical.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building anti-floating, in particular to a foundation bottom plate, anti-floating anchor rod and construction method. BACKGROUND

[0002] The anti-floating anchor rod is a kind of anti-floating measure for underground structure of building engineering, and its technological process is as follows: 1. positioning and laying line, the positioning of anchor rod should not be greater than 2 cm, and the top elevation of anchor rod should be controlled; 2. positioning of drilling machine, ensuring the verticality of drilling machine, so that the drilling machine becomes a plumb line; 3. drilling machine speed is 5-10 cm per minute in the construction area; 4. grouting and pouring, inserting anchor rod into the drilling hole, pouring cement, and anchor rod needs to be inserted into the drilling hole through the grouting pipe, and the pipe end should be set several centimeters above the hole bottom.

[0003] In the existing pouring method, the anti-floating anchor rod is inserted into the grouting pipe and placed into the construction hole together with the grouting pipe, so the gap between the anti-floating anchor rod and the inner wall of the grouting pipe is limited, and when grouting, the cement is poured into the grouting pipe from the top end of the grouting pipe, which leads to low flow speed when the cement flows down from the top end of the grouting pipe, and after grouting, the cement between the anti-floating anchor rod and the inner wall of the grouting pipe is unevenly distributed, thereby affecting the construction quality. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a foundation bottom plate with a rotating function, which can improve the pouring efficiency when pouring cement into the grouting pipe.

[0005] The technical scheme of the present application is a kind of base plate, including substrate body, first through hole being opened in the middle part of substrate body, guide pipe being arranged in first through hole, the top end of guide pipe exceeds the top surface of substrate body, the bottom end of guide pipe exceeds the bottom surface of substrate body, the top surface of substrate body is equipped with three columns, three columns are annular array in the periphery of guide pipe, each column is equipped with bearing, the outer ring of bearing is fixed with polyurethane seat, the top of polyurethane seat is equipped with annular cavity, the opening of annular cavity faces upward, the outer thread is arranged on the column, the pressure seat is installed on the column through the outer thread, the pressure seat is located above polyurethane seat, the bottom surface of pressure seat is equipped with vertical downward pressure ring, the cross-sectional shape of annular cavity is V-shaped, the downward inclined surface is formed in annular cavity, the bottom end of pressure ring is equipped with upper inclined surface, the upper inclined surface is filled with a plurality of rolling ball, when pressure ring moves downward with pressure seat, ball is rolled on downward inclined surface, so that the diameter size of polyurethane seat increases in the direction of guide pipe, the outer circular surface of polyurethane seat is equipped with annular assembly groove, hard rubber ring is embedded in assembly groove, hard rubber ring can change diameter in the same direction with polyurethane seat;Transmission device is installed on substrate body, transmission device is located in the periphery of one polyurethane seat, transmission device is drivingly connected on polyurethane seat, and can drive polyurethane seat to drive hard rubber ring to rotate in the peripheral direction of guide pipe.

[0006] As further preferred, the top end of the three columns is equipped with external threads, and the top end of the three columns is equipped with two anti-loosening nuts through the external threads.

[0007] As further preferred, one of the three columns is equipped with external threads, and the column equipped with external threads is sleeved with a pressure plate, the pressure plate is triangular, and one second through hole is formed on each of the three corners of the pressure plate, one second through hole is sleeved on the column equipped with external threads, the other two second through holes are sleeved on the other two columns, and the bottom surface of the pressure plate is horizontally contacted on the top surface of the three polyurethane seats.

[0008] As further preferred, three fixing holes are annularly arrayed on the pressure plate, and the three fixing holes are arranged in the space of the three columns.

[0009] As further preferred, the side of the substrate body is equipped with a mounting groove, the transmission device includes a bearing seat, a rotating shaft, and a bevel gear set, the mounting groove is located outside one of the columns, the bearing seat is fixed on the top surface of the substrate body, the rotating shaft is installed on the bearing seat, the rotating shaft is horizontally arranged, the inner end of the rotating shaft is vertically arranged outside the column, the bevel gear set includes a driving bevel gear and a driven bevel gear, the driving bevel gear is fixed on the inner end of the rotating shaft, the driven bevel gear is fixed on the bottom surface of the polyurethane seat, the diameter size of the driven bevel gear is smaller than the diameter size of the polyurethane seat, the driving bevel gear extends to the bottom of the driven bevel gear, and engages and drives the driven bevel gear.

[0010] As a further preferred, the transmission device further comprises a foot pedal assembly arranged on the base plate body, the foot pedal assembly comprising a cylindrical gear, a rack, a guide seat, a foot pedal and a cam structure, the cylindrical gear is fixed on the outer end of the rotating shaft, the guide seat is fixed on the top surface of the base plate body, the rack is slidingly fitted in the guide seat, one end of the rack extends horizontally above the rotating shaft and is engaged on the cylindrical gear, a tension spring is connected between the other end of the rack and the guide seat, the foot pedal is connected to the outside of the guide seat, and the cam structure is arranged between the foot pedal and the rack.

[0011] An anti-floating anchor rod comprises a grouting pipe and a plurality of steel bars filled in the grouting pipe, the steel bars are collectively sleeved with a positioning plate, the steel bars are fixed by the positioning plate, and the fixed steel bars are spaced apart from each other, and a circle of pouring grooves is formed on the grouting pipe.

[0012] A construction method of a foundation base plate and an anti-floating anchor rod, characterized in that the method comprises the following steps:

[0013] Step S1: manufacturing an anti-floating anchor rod: a plurality of steel bars are positioned together by at least one positioning plate to form an anti-floating anchor rod;

[0014] Step S2: manufacturing a grouting pipe, using a metal pipe or a plastic pipe as a raw material, a large number of pouring grooves are formed along the circumferential direction of the pipe, one end of the pouring groove reaches the upper side of the bottom of the grouting pipe, and the other end of the pouring groove reaches three quarters of the grouting pipe;

[0015] Step S3: inserting the anti-floating anchor rod in step S1 into the grouting pipe in step S2, and ensuring that the positioning plate is located at the bottom of the lumen of the grouting pipe, and the outer contour of the positioning plate abuts against the inner wall of the lumen of the grouting pipe, so that the anti-floating anchor rod is positioned vertically in the grouting pipe;

[0016] Step S4: placing the base plate body above the construction hole, so that the first through hole on the base plate body is kept on the same vertical line with the construction hole, and at the same time, the bottom end of the guide pipe is inserted into the construction hole;

[0017] Step S5: inserting the grouting pipe with the anti-floating anchor rod in step S3 into the construction hole from the top end of the guide pipe, and ensuring that the anti-floating anchor rod is located at the bottom of the construction hole along the end with the positioning plate, and at the same time, the grouting pipe and the anti-floating anchor rod are exposed on the construction ground by one quarter, and the diameter of the grouting pipe is smaller than the size of the lumen of the guide pipe;

[0018] Step S6: pouring cement from above the ground down into the pipe cavity of the grouting pipe, while pouring the cement into the grouting pipe, rotating the grouting pipe repeatedly, so that the cement can be evenly distributed along the pouring gap between the grouting pipe and the anti-floating anchor rod, at the same time, part of the cement flows out of the pouring groove into the construction hole, so as to pour the grouting pipe into the construction hole, and complete the pouring of the anti-floating anchor rod into the construction hole.

[0019] The beneficial effects of the present application compared with the prior art are:

[0020] The bottom end of the guide pipe is inserted into the construction hole, the multiple anti-floating anchor rods are tied together and inserted into the same grouting pipe, then the anti-floating anchor rod is inserted into the construction hole through the guide pipe from the top end of the guide pipe, at this time the top end of the guide pipe is exposed on the ground, the top end of the anti-floating anchor rod is exposed on the top of the guide pipe, used for connecting the anti-floating building, the bottom end of the anti-floating anchor rod is inserted into the construction hole, all the pressure seats are rotated, the pressure seats are lowered along the column, when the pressure seats are lowered, the pressure rings are lowered synchronously and pressed on the polyurethane seat, so that the diameter of the polyurethane seat is increased, the polyurethane seat will press the rubber ring on the grouting pipe, since the polyurethane seat is three, and surrounds the outer periphery of the grouting pipe, and one hard rubber ring is arranged on each of the three polyurethane seats, and the sizes of the three polyurethane seats and the three hard rubber rings are consistent, therefore, when the three hard rubber rings are extruded on the outer wall surface of the grouting pipe in three equiangular directions, the grouting pipe can be kept vertical when being put into the construction hole with larger diameter, and the anti-floating anchor rod filled in the grouting pipe and put into the construction hole is kept vertical, since the anti-floating anchor rod is treated vertically, the cement poured into the grouting pipe can be rotated and carried by the polyurethane seat with rotation function, so as to improve the falling speed of the cement along the pipe cavity of the grouting pipe. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The structure of the present application is shown in the structure diagram;

[0022] Figure 2 The structure of the present application is shown in the structure diagram; Figure 1 The structure of the present application is shown in the structure diagram;

[0023] Figure 3 The structure of the present application is shown in the structure diagram; Figure 2 The structure of the present application is shown in the structure diagram;

[0024] Figure 4 The structure of the present application is shown in the structure diagram; Figure 1 The structure of the present application is shown in the structure diagram;

[0025] Figure 5 The structure of the present application is shown in the structure diagram; Figure 2Structure diagram of the structure from the perspective of the cross section;

[0026] Figure 6 Structure diagram of the structure from the perspective of the cross section; Figure 5 Structure diagram of the structure from the perspective of the cross section;

[0027] Figure 7 Structure diagram of the structure from the perspective of the cross section;

[0028] Figure 8 Structure diagram of the structure from the perspective of the cross section;

[0029] Figure 9 Structure diagram of the structure from the perspective of the cross section;

[0030] Figure 10 Structure diagram of the structure from the perspective of the cross section.

[0031] In the figure: 1, base plate body; 2, first through hole; 3, guide pipe; 4, stand; 5, bearing; 6, polyurethane seat; 7, annular cavity; 8, external thread; 9, pressing seat; 10, pressing ring; 11, lower inclined surface; 12, upper inclined surface; 13, ball; 14, assembly groove; 15, hard rubber ring; 16, lock nut; 17, pressing plate; 171, second through hole; 18, fixing hole; 19, mounting groove; 20, bearing seat; 21, rotating shaft; 22, conical gear set; 221, driving bevel gear; 222, driven bevel gear; 23, foot pedal assembly; 231, cylindrical gear; 232, rack; 233, guide seat; 234, foot pedal; 235, cam structure; 236, tension spring; 24, grouting pipe; 25, steel bar; 26, positioning plate; 27, pouring groove. DETAILED DESCRIPTION

[0032] The above and other embodiments and advantages of the present application are described in detail in connection with the drawings, in which:

[0033] In one embodiment, as Figures 1-9As shown, the base plate provided by the embodiment comprises a base plate body 1, a first through hole 2 arranged in the middle of the base plate body 1, a guide pipe 3 arranged in the first through hole 2, the top end of the guide pipe 3 exceeding the top surface of the base plate body 1, the bottom end of the guide pipe 3 exceeding the bottom surface of the base plate body 1, three vertical columns 4 arranged on the top surface of the base plate body 1, the three vertical columns 4 being arranged in a circular array around the guide pipe 3, a bearing 5 arranged on each vertical column 4, an outer ring of the bearing 5 being fixed with a polyurethane seat 6, a circular cavity 7 being arranged on the top of the polyurethane seat 6, the opening of the circular cavity 7 being upward, an outer thread 8 being arranged on the vertical column 4, a pressing seat 9 being arranged on the vertical column 4 through the outer thread 8, the pressing seat 9 being arranged above the polyurethane seat 6, a pressing ring 10 being arranged on the bottom surface of the pressing seat 9 and vertically downward, the cross section of the circular cavity 7 being V-shaped, an outward and upward inclined lower inclined surface 11 being formed in the circular cavity 7, an upper inclined surface 12 being arranged on the bottom end of the pressing ring 10 and corresponding to the lower inclined surface 11, a plurality of rolling balls 13 being filled in the upper inclined surface 12, the rolling balls 13 being rolled on the lower inclined surface 11 when the pressing ring 10 moves downward with the pressing seat 9, so that the diameter of the polyurethane seat 6 increases in the direction of the guide pipe 3, a circular assembly groove 14 being arranged on the outer surface of the polyurethane seat 6, a hard rubber ring 15 being inlaid in the assembly groove 14, the hard rubber ring 15 being able to change the diameter in the same direction with the polyurethane seat 6; a transmission device is arranged on the base plate body 1, the transmission device being arranged around one of the polyurethane seats 6, the transmission device being drivingly connected to the polyurethane seat 6 and being able to drive the polyurethane seat 6 to drive the hard rubber ring 15 to rotate in the direction around the guide pipe 3.

[0034] During construction, the base plate body 1 is placed above the construction hole, the first through hole 2 on the base plate body 1 is kept on the same vertical line with the construction hole, the bottom end of the guide pipe 3 is inserted into the construction hole, a plurality of anti-floating anchor rods are tied together and inserted into the same grouting pipe, then the anti-floating anchor rods are inserted into the construction hole by guiding from the top end of the guide pipe 3, at this time the top end of the guide pipe 3 is exposed on the ground, the top end of the anti-floating anchor rod is exposed on the top of the guide pipe 3 and used to connect the anti-floating building, the bottom end of the anti-floating anchor rod is inserted into the construction hole, all the pressure seats 9 are rotated to make the pressure seats 9 descend along the stand 4, when the pressure seats 9 descend, the pressure rings 10 are synchronously lowered, and finally the upper inclined surface 12 at the bottom end of the pressure ring 10 is pressed on the upper inclined surface 12 of the annular cavity 7, because the annular cavity 7 is the top structure of the polyurethane seat 6, and the polyurethane seat 6 is a flexible polyurethane material, when the pressure seats 9 continue to descend, the upper inclined surface 12 will press the lower inclined surface 11 for a long time, because the upper inclined surface 12 is the bottom end structure of the pressure ring 10, and the pressure ring 10 is a metal material, when a metal material pressure ring 10 continuously extrudes a flexible material lower inclined surface 11 in the vertical direction through the upper inclined surface 12, it will cause the annular cavity 7 to gradually increase along the radial direction of the polyurethane seat 6, that is, the outer diameter of the polyurethane seat 6 becomes larger, that is, the hard rubber ring 15 on the outer circular surface of the polyurethane seat 6 is pushed towards the guide pipe 3, and the outer wall of the hard rubber ring 15 is extruded with the outer wall of the grouting pipe in the guide pipe 3, because the polyurethane seat 6 simultaneously performs the above-mentioned action at three places, and one hard rubber ring 15 is arranged on each of the three polyurethane seats 6, and the sizes of the three polyurethane seats 6 and the three hard rubber rings 15 are consistent, therefore when the three hard rubber rings 15 extrude the outer wall of the grouting pipe at three equal angles, it can ensure that the grouting pipe remains vertical when it is put into the construction hole with a larger diameter, and also ensures that the anti-floating anchor rod filled in the grouting pipe and put into the construction hole is vertical.

[0035] In the embodiment, because a ring of balls 13 is filled and installed on the upper inclined surface 12 at the bottom end of the pressure ring 10, and the polyurethane seat 6 is assembled on the stand 4 through the bearing 5, in actual use, the upper inclined surface 12 extrudes the lower inclined surface 11 in the annular cavity 7 at the top of the polyurethane seat 6 through the balls 13, but according to the rolling performance of the balls 13, the upper inclined surface 12 pressed on the lower inclined surface 11 will not affect the rotation of the polyurethane seat 6 around the stand 4, therefore when the transmission device rotates the polyurethane seat 6, the polyurethane seat 6 will rotate with the hard rubber ring 15 on the outer circular surface, the hard rubber ring 15 will rotate by extruding and rubbing the grouting pipe, when the grouting pipe rotates, the cement poured into the grouting pipe will also rotate to improve the falling speed of the cement along the lumen of the grouting pipe.

[0036] In one embodiment, external threads 8 are formed on the top ends of the three upright columns 4, and upper and lower anti-loosening nuts 16 are installed on the top ends of the three upright columns 4 through the external threads 8. After the three pressing seats 9 are respectively lowered, the annular cavities 7 on the top of the polyurethane seats 6 are impacted and deformed by the pressing rings 10, and then the three anti-loosening nuts 16 are respectively locked to ensure the positioning of the pressing seats 9.

[0037] In another embodiment, in order to improve the locking efficiency when the three pressing seats 9 are lowered and after the three pressing seats 9 are lowered in the last embodiment, an external thread 8 is formed on one of the three upright columns 4, and a pressing plate 17 is sleeved on the upright column 4 with the external thread 8. The pressing plate 17 is triangular, and a second through hole 171 is formed on each of the three corners of the pressing plate 17. One of the second through holes 171 is sleeved on the upright column 4 with the external thread 8, and the other two second through holes 171 are sleeved on the other two upright columns 4. The bottom surface of the pressing plate 17 is horizontally in contact with the top surface of each of the three polyurethane seats 6.

[0038] As further preferred, the side of the base plate body 1 is provided with a mounting groove 19, the transmission device comprises a bearing seat 20, a rotating shaft 21 and a bevel gear set 22, the mounting groove 19 is located at the outside of one of the columns 4, the bearing seat 20 is fixed on the top surface of the base plate body 1, the rotating shaft 21 is installed on the bearing seat 20, the rotating shaft 21 is horizontally arranged, the inner end of the rotating shaft 21 is vertically arranged at the outside of the column 4, the outer end of the rotating shaft 21 extends into the mounting groove 19, the bevel gear set 22 comprises a driving bevel gear 221 and a driven bevel gear 222, the driving bevel gear 221 is fixed on the inner end of the rotating shaft 21, the driven bevel gear 222 is fixed on the bottom surface of the polyurethane seat 6, the diameter size of the driven bevel gear 222 is smaller than that of the polyurethane seat 6, the driving bevel gear 221 extends to the bottom of the driven bevel gear 222 and meshes with the driven bevel gear 222 to drive the driven bevel gear 222, the transmission device further comprises a foot pedal assembly 23 arranged on the base plate body 1, the foot pedal assembly 23 comprises a cylindrical gear 231, a rack 232, a guide seat 233, a foot pedal 234 and a cam structure 235, the cylindrical gear 231 is fixed on the outer end of the rotating shaft 21, the guide seat 233 is fixed on the top surface of the base plate body 1, the rack 232 is slidingly fitted in the guide seat 233, one end of the rack 232 extends above the rotating shaft 21 and meshes with the cylindrical gear 231, the other end of the rack 232 is connected with the guide seat 233 through a tension spring 236, the foot pedal 234 is connected to the outside of the guide seat 233, and the cam structure 235 is arranged between the foot pedal 234 and the rack 232.Therefore, in order to conveniently rotate the grouting pipe while pouring cement, in the embodiment, the action can be completed by frequently stepping on the foot pedal 234, that is, the polyurethane seat 6 does not need to be manually rotated by bending over. The specific principle is as follows: when the operator releases both hands and steps on the foot pedal 234 to press downward, the foot pedal 234 rotates downward, the cam portion at the bottom of the foot pedal 234 contacts and is pressed by the cam portion on the rack 232, that is, the roller, so that the rack 232 moves along the guide seat 233 once, and the tension spring 236 is stretched and lengthened. When the force of the foot on the foot pedal 234 decreases, the tension spring 236 is shortened, and the rack 232 is pulled back along the guide seat 233 by the pulling force of the tension spring 236 when it is shortened, so that the rack 232 frequently reciprocates linearly. The rack 232 frequently reciprocates linearly and meshes with the cylindrical gear 231 to frequently rotate clockwise and counterclockwise. The cylindrical gear 231 frequently rotates clockwise and counterclockwise, and the rotating shaft 21 frequently rotates clockwise and counterclockwise. The rotating shaft 21 frequently rotates clockwise and counterclockwise, and the driven bevel gear 222 frequently rotates clockwise and counterclockwise through the driving bevel gear 221. The driven bevel gear 222 frequently rotates clockwise and counterclockwise and drives the polyurethane seat 6 to frequently rotate forward and backward. The polyurethane seat 6 frequently rubs the grouting pipe by the hard rubber ring 15, so that the grouting pipe frequently rotates forward and backward, and the cement poured into the grouting pipe is shaken back and forth in the lumen, so that the cement smoothly falls along the lumen, thereby preventing the cement from being affected by the anchor rod when falling, and also allowing the cement to smoothly fill the lumen, so that the anchor rod is poured into the grouting pipe and poured into the construction hole together with the grouting pipe.

[0039] An anti-floating anchor rod comprises a grouting pipe 24 and a plurality of steel bars 25 filled in the grouting pipe 24. The steel bars 25 are collectively sleeved with a positioning plate 26, and the steel bars 25 are fixed by the positioning plate 26 and have a spacing between each other. A pouring groove 27 is formed on the grouting pipe 24, and a plurality of positioning holes are formed on the positioning plate 26, and the number of the positioning holes is consistent with the number of the steel bars 25. Figures 8 to 10As shown, when three steel bars 25 need to be combined together to form an anti-floating anchor rod, the three steel bars 25 are simultaneously inserted into the positioning plate 26 through three positioning holes, the positioning plate 26 is used to combine the three steel bars 25 together to form the anti-floating anchor rod, the positioning plate 26 is ensured to be located at the bottom end of the three steel bars 25, the combined anti-floating anchor rod is inserted into the grouting pipe 24, and the positioning plate 26 is ensured to be located at the bottom of the lumen of the grouting pipe 24, and the outer contour of the positioning plate 26 is abutted against the inner wall of the lumen of the grouting pipe 24, so that the anti-floating anchor rod is positioned in the grouting pipe 24 in a vertical manner, at the same time, a large amount of grouting cement is overflowed from the pouring groove 27 to be used for pouring connection with the construction hole, so as to ensure that the anti-floating anchor rod is in a vertical manner when the grouting pipe 24 is inserted into the construction hole, and also ensure that a pouring gap is left between the periphery of the anti-floating anchor rod and the inner wall of the grouting pipe 24, when the cement is poured into the grouting pipe 24 from the top end of the grouting pipe 24, the cement can be distributed along the pouring gap, and when the anti-floating anchor rod is poured into the grouting pipe 24, it can be perpendicular to the lumen, and also ensure that the anti-floating anchor rod is perpendicular to the construction pavement when it is poured into the construction hole, thereby improving the construction quality.

[0040] The above-mentioned orientation reference does not represent the specific orientation of each component in the embodiment, and the embodiment is only for the convenience of describing the scheme and is relatively described by referring to the orientation in the figure. In essence, the specific orientation of each component is according to its actual installation and actual use and the orientation description habit of those skilled in the art, such as left, right, front, back, up, down, etc. Only the orientation reference in the figure is indicated, and the installation orientation of the invention itself in the actual application scene is not specifically indicated. Therefore, it is stated.

[0041] The above-mentioned specific embodiments further specifically describe the purposes, technical solutions, and beneficial effects of the application. It should be understood that the above-mentioned embodiments are only specific embodiments of the application and do not limit the protection scope of the application. It is particularly pointed out that any modification, equivalent replacement, improvement, etc. made by those skilled in the art within the spirit and principles of the application should be included in the protection scope of the application.

Claims

1. A foundation mat, characterized in that, The utility model provides a kind of substrate body (1), first through hole (2) is opened in the middle of substrate body (1), guide pipe (3) is arranged in first through hole (2), the top end of guide pipe (3) exceeds the top surface of substrate body (1), the bottom end of guide pipe (3) exceeds the bottom surface of substrate body (1), the top surface of substrate body (1) is equipped with three columns (4), three columns (4) annular array in the periphery of guide pipe (3), each column (4) is equipped with bearing (5), the outer ring of bearing (5) is fixed with polyurethane seat (6), the top of polyurethane seat (6) is equipped with annular cavity (7), the opening of annular cavity (7) is upward, column (4) is equipped with outer thread (8), column (4) is equipped with pressure seat (9) by outer thread (8), pressure seat (9) is located above polyurethane seat (6), the bottom surface of pressure seat (9) is equipped with vertical downward pressure ring (10), the cross-sectional shape of annular cavity (7) is V-shaped, annular cavity (7) is formed with the outward upper direction inclined lower inclined surface (11), the bottom end of pressure ring (10) is equipped with upper inclined surface (12) with lower inclined surface (11) up and down mutual response, upper inclined surface (12) is filled with several can roll ball (13), when pressure ring (10) moves downward with pressure seat (9), so that ball (13) is rolled and pressed on lower inclined surface (11), to make the diameter size of polyurethane seat (6) increase towards the direction of guide pipe (3), the outer circular surface of polyurethane seat (6) is equipped with annular assembly groove (14), assembly groove (14) is inlaid with hard rubber ring (15), hard rubber ring (15) can change diameter in the same direction with polyurethane seat (6);Substrate body (1) is equipped with transmission device, transmission device is located in the periphery of one polyurethane seat (6), transmission device is drivingly connected on polyurethane seat (6), and can drive polyurethane seat (6) to drive hard rubber ring (15) to rotate in the periphery direction of guide pipe (3); The side of substrate body (1) is equipped with mounting groove (19), and the transmission device includes bearing seat (20), rotating shaft (21), bevel gear set (22), the mounting groove (19) is located at the outside of one column (4), the bearing seat (20) is fixed on the top surface of substrate body (1), the rotating shaft (21) is installed on the bearing seat (20), the rotating shaft (21) is horizontally arranged, the inner end of rotating shaft (21) is perpendicular to the outside of column (4), the outer end of rotating shaft (21) extends into mounting groove (19), and the bevel gear set (22) includes driving bevel gear (221) and driven bevel gear (222), the driving bevel gear (221) is fixed on the inner end of rotating shaft (21), the driven bevel gear (222) is fixed on the bottom surface of polyurethane seat (6), and the diameter size of driven bevel gear (222) is less than the diameter size of polyurethane seat (6), and the driving bevel gear (221) extends to the bottom of driven bevel gear (222) and is engaged on driven bevel gear (222) for transmission. The transmission device further comprises a foot pedal assembly (23) arranged on the base plate body (1), the foot pedal assembly (23) comprises a cylindrical gear (231), a rack (232), a guide seat (233), a foot pedal (234) and a cam structure (235), the cylindrical gear (231) is fixed on the outer end of the rotating shaft (21), the guide seat (233) is fixed on the top surface of the base plate body (1), the rack (232) is slidingly fitted in the guide seat (233), one end of the rack (232) extends horizontally above the rotating shaft (21) and is engaged on the cylindrical gear (231), the other end of the rack (232) is connected with the guide seat (233) through a tension spring (236), the foot pedal (234) is connected to the outside of the guide seat (233), and the cam structure (235) is arranged between the foot pedal (234) and the rack (232).

2. The foundation mat of claim 1, wherein, The top end of each of the three columns (4) is provided with external threads (8), and the top end of each of the three columns (4) is provided with two upper and lower anti-loose nuts (16) through the external threads (8).

3. The foundation mat of claim 2, wherein, One of the three columns (4) is provided with external threads (8), and the column (4) provided with the external threads (8) is sleeved with a pressing plate (17), the pressing plate (17) is triangular, and one second through hole (171) is arranged on each of the three corners of the pressing plate (17), one second through hole (171) is sleeved on the column (4) provided with the external threads (8), and the other two second through holes (171) are sleeved on the other two columns (4), and the bottom surface of the pressing plate (17) is horizontally in contact with the top surface of the three polyurethane bases (6).

4. The foundation mat of claim 3, wherein, Three fixing holes (18) are arranged in the annular array on the pressing plate (17), and the three fixing holes (18) are arranged in the three columns (4).

5. An anti-float anchor rod characterized by: The foundation base is suitable for the foundation base in any one of claims 1-4, comprising a grouting pipe (24) and a plurality of steel bars (25) filled in the grouting pipe (24), the steel bars (25) are collectively sleeved with a positioning plate (26), the plurality of steel bars (25) are fixed through the positioning plate (26), and intervals are left between the fixed steel bars (25), and a circle of pouring grooves (27) is arranged on the grouting pipe (24).

6. A method of construction using an anti-float anchor as claimed in claim 5, characterised by: The method comprises the following steps: Step S1: manufacturing an anti-floating anchor rod: a plurality of steel bars (25) are positioned together through at least one positioning plate (26) to be combined into an anti-floating anchor rod; Step S2: manufacturing a grouting pipe (24), using a metal pipe or a plastic pipe as a raw material, a large number of pouring grooves (27) are arranged along the circumferential direction of the pipe, one end of the pouring grooves (27) reaches the upper side of the bottom of the grouting pipe (24), and the other end of the pouring grooves (27) reaches three quarters of the grouting pipe (24); Step S3: inserting the anti-floating anchor rod in step S1 into the grouting pipe (24) in step S2, and ensuring that the positioning plate (26) is located at the bottom of the lumen of the grouting pipe (24), and the outer contour of the positioning plate (26) is abutted against the inner wall of the lumen of the grouting pipe (24), so that the anti-floating anchor rod is positioned vertically in the grouting pipe (24). Step S4: Place the substrate body 1 above the construction hole, so that the first through hole (2) on the substrate body 1 is kept on the same vertical line with the construction hole, and at the same time ensure that the bottom end part of the guide pipe (3) is inserted into the construction hole; Step S5: Insert the grouting pipe (24) in step S3 together with the anti-floating anchor rod into the construction hole from the top end of the guide pipe (3), and ensure that the anti-floating anchor rod is located at the bottom of the construction hole along the end with the positioning plate (26), and at the same time ensure that the grouting pipe (24) and the anti-floating anchor rod are exposed on the construction ground by one quarter, and the diameter of the grouting pipe (24) is smaller than the lumen size of the guide pipe (3); Step S6: Pour cement from above the grouting pipe (24) ground downwards, so that the cement enters the lumen of the grouting pipe (24), and at the same time, the grouting pipe (24) is rotated repeatedly, so that the cement can be evenly distributed along the pouring gap between the grouting pipe (24) and the anti-floating anchor rod, and at the same time, part of the cement flows out of the pouring groove (27) into the construction hole, so as to pour the grouting pipe (24) in the construction hole, and complete the pouring work of the anti-floating anchor rod into the construction hole.

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