Basement anti-floating anchor rod

Abstract

The utility model provides an anti-floating anchor rod for a basement. The basement anti-floating anchor rod comprises an anti-floating anchor rod body, the anti-floating anchor rod body is installed below a basement bottom plate, a first grouting pipe used for primary grouting is bound to the side wall of the anti-floating anchor rod body, and a second grouting pipe used for secondary grouting is bound to the interior of the anti-floating anchor rod body; the bottom end of the second grouting pipe is provided with a lifting mechanism used for reducing the upward moving resistance of the second grouting pipe, the bottom end of the lifting mechanism is provided with an injection mechanism, the bottom end of the lifting mechanism is fixedly connected with the barrel, and the interior of the barrel is slidably connected with the fixing rod, the drill bit and the sealing ring. The drill bit and the sealing ring are installed at the two ends of the fixing rod respectively, the multiple sprayers are obliquely installed at the bottom end of the fixing rod, and a reset mechanism is installed in the barrel. The basement anti-floating anchor rod has the advantages that the spray head is prevented from being blocked, and the secondary grouting pipe is conveniently pulled out.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-floating anchor rods, in particular to an anti-floating anchor rod for a basement. Background Art

[0002] Anti-floating anchor rods are a type of anti-floating measure for underground structures in construction projects. They are structural components set up to resist the upward displacement of buildings above them. They are related to the height and changes of the groundwater level and are opposite to the force direction of the compression piles. Anti-floating anchor rods have the advantages of ensuring anchoring quality, accurate positioning and line measurement, and facilitating the protection of finished products. They are mainly used to prevent buildings or other structures from being affected by settlement or floating, and to ensure the stability and safety of buildings and structures.

[0003] In order to improve the pull-out resistance of the anti-floating anchor, after the initial setting of the grouting of the anti-floating anchor, the anti-floating anchor can be subjected to secondary grouting. The grouting can make the cement slurry penetrate, squeeze and diffuse in the surrounding strata, and can also form radial pressure on the borehole, thereby increasing the bonding friction resistance between the anchor body and the stratum; then the nozzle on the surface of the secondary grouting pipe is easily blocked by the mortar, resulting in grouting failure, and because the bonding force between the secondary grouting pipe and the mortar increases after the initial setting of the mortar, it is inconvenient to pull out the secondary grouting pipe.

[0004] Therefore, it is necessary to provide a new basement anti-floating anchor rod to solve the above technical problems. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a basement anti-floating anchor rod which can avoid nozzle blockage and facilitate pulling out of a secondary grouting pipe.

[0006] In order to solve the above technical problems, the utility model provides an anti-floating anchor rod for a basement, comprising: an anti-floating anchor rod, wherein the anti-floating anchor rod is installed below the basement floor, the side wall of the anti-floating anchor rod is used for binding a first grouting pipe for the first grouting, and the interior of the anti-floating anchor rod is used for binding a second grouting pipe for the secondary grouting; a lifting mechanism for reducing the upward resistance of the second grouting pipe is installed at the bottom end of the second grouting pipe, and an injection mechanism is installed at the bottom end of the lifting mechanism, and the injection mechanism comprises a fixed rod, a nozzle, a drill bit, a cylinder and a sealing ring, the bottom end of the lifting mechanism is fixedly connected to the cylinder, the interior of the cylinder is slidably connected to the fixed rod, the drill bit and the sealing ring, the drill bit and the sealing ring are installed at both ends of the fixed rod, a plurality of nozzles are installed obliquely at the bottom end of the fixed rod, and a reset mechanism is installed inside the cylinder.

[0007] Preferably, the lifting mechanism comprises a lifting rod and a blade, the top end of the lifting rod is rotatably connected to the second grouting pipe, and the spiral blade is installed on the side wall of the lifting rod.

[0008] Preferably, the bottom end of the lifting rod is fixedly connected to the cylinder, and the interior of the cylinder and the top end of the fixing rod are both hexagonal column structures.

[0009] Preferably, the reset mechanism includes a rubber ring, a first magnetic ring, a spring and a second magnetic ring; the rubber ring and the first magnetic ring are fixedly connected to the inside of the cylinder; the side wall of the sealing ring is fixedly connected to the second magnetic ring; a plurality of springs are installed between the rubber ring and the sealing ring, and the first magnetic ring absorbs the second magnetic ring.

[0010] Preferably, the side wall of the rubber ring is slidably connected to the fixing rod, and the first magnetic ring is located between the rubber ring and the second magnetic ring.

[0011] Preferably, one end of the drill bit is in a conical structure, and the maximum diameter of the drill bit is equal to the inner diameter of the barrel.

[0012] Preferably, the anti-floating anchor rod is welded by a fixed head and a plurality of steel bars, and a plurality of retaining rods for increasing the firmness of the steel bars are welded to the side walls of the steel bars.

[0013] Compared with the related art, the basement anti-floating anchor rod provided by the utility model has the following beneficial effects:

[0014] The utility model provides an anti-floating anchor rod for a basement. When the anti-floating anchor rod is initially grouted through the first grouting pipe, the drill bit and the nozzle are located inside the cylinder, and the drill bit prevents the mortar from entering the inside of the cylinder and contacting the nozzle, so as to prevent the mortar from clogging the nozzle. After the mortar of the anti-floating anchor rod is initially solidified, an air compressor is connected to the second grouting pipe and the mortar pool, and the air compressor presses the mortar into the inside of the second grouting pipe, and squeezes the air inside the second grouting pipe into the inside of the cylinder. The pressure grouting increases and pushes the drill bit and the fixing rod to slide out from the inside of the cylinder. One end of the drill bit is conical, so that The drill bit crushes the initially set mortar, and the sealing ring prevents the mortar from leaking, which facilitates the mortar to enter the interior of the fixed rod, so that the drill bit drives the fixed rod and the nozzle to slide out from the interior of the cylinder. When the mortar is sprayed from the nozzle on the side wall of the fixed rod, the mortar is sprayed downwardly through the nozzle, which has an upward thrust on the cylinder and the lifting mechanism, making it convenient to lift the second grouting pipe upward; at the same time, the direction in which the mortar is sprayed from the nozzle is tangent to the side wall of the fixed rod, which pushes the fixed rod, the cylinder and the lifting mechanism to rotate, further reducing the resistance to the upward movement of the second grouting pipe, making it convenient for the second grouting pipe to move upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of the basement anti-floating anchor provided by the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the anti-floating anchor structure shown;

[0017] Figure 3 for Figure 1 A top view of the anti-floating anchor structure shown;

[0018] Figure 4 for Figure 3 The schematic diagram of the bottom structure of the second grouting pipe is shown;

[0019] Figure 5 for Figure 4 An enlarged schematic diagram of the structure at A shown;

[0020] Figure 6 for Figure 4 A top view of the internal structure of the fixing rod shown;

[0021] Figure 7 for Figure 4 A top view of the internal structure of the cylinder is shown.

[0022] Numbers in the figure: 1. basement floor, 2. anti-floating anchor rod, 21. stop rod, 22. fixed head, 23. steel bar, 3. first grouting pipe, 4. second grouting pipe, 5. lifting mechanism, 51. lifting rod, 52. blade, 6. injection mechanism, 61. fixing rod, 62. nozzle, 63. drill bit, 64. cylinder, 65. sealing ring, 7. reset mechanism, 71. rubber ring, 72. first magnetic ring, 73. spring, 74. second magnetic ring. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0024] Please refer to Figures 1 to 7 ,in, Figure 1 A schematic diagram of the structure of the basement anti-floating anchor provided by the utility model; Figure 2 for Figure 1 Schematic diagram of the anti-floating anchor structure shown; Figure 3 for Figure 1 A top view of the anti-floating anchor structure shown; Figure 4 for Figure 3 The schematic diagram of the bottom structure of the second grouting pipe is shown; Figure 5 for Figure 4 An enlarged schematic diagram of the structure at A shown; Figure 6 for Figure 4 A top view of the internal structure of the fixing rod shown; Figure 7 for Figure 4The top view of the internal structure of the cylinder is shown. The basement anti-floating anchor comprises: an anti-floating anchor 2, the anti-floating anchor 2 is installed below the basement floor 1, the side wall of the anti-floating anchor 2 is tied to the first grouting pipe 3 for the first grouting, and the interior of the anti-floating anchor 2 is used to tie the second grouting pipe 4 for the second grouting; the bottom end of the second grouting pipe 4 is installed with a lifting mechanism 5 for reducing the upward resistance of the second grouting pipe 4, the bottom end of the lifting mechanism 5 is installed with an injection mechanism 6, the injection mechanism 6 comprises a fixing rod 61, a nozzle 62, a drill bit 63, a cylinder 64 and a sealing ring 65, the bottom end of the lifting mechanism 5 is fixedly connected to the cylinder 64, the The interior of the cylinder 64 is slidably connected to the fixing rod 61, the drill bit 63 and the sealing ring 65. The drill bit 63 and the sealing ring 65 are respectively installed at both ends of the fixing rod 61. The bottom end of the fixing rod 61 is obliquely installed with multiple nozzles 62, and a reset mechanism 7 is installed inside the cylinder 64. When the anti-floating anchor rod 2 is initially grouted through the first grouting pipe 3, the drill bit 63 and the nozzle 62 are located inside the cylinder 64. The drill bit 63 prevents the mortar from entering the interior of the cylinder 64 and contacting the nozzle 62, thereby preventing the mortar from clogging the nozzle 62.

[0025] The lifting mechanism 5 includes a lifting rod 51 and a blade 52, the top end of the lifting rod 51 is rotatably connected to the second grouting pipe 4, and the side wall of the lifting rod 51 is installed with the spiral blade 52; the bottom end of the lifting rod 51 is fixedly connected to the cylinder 64; after the mortar of the anti-floating anchor rod 2 is initially solidified, the air compressor is connected to the second grouting pipe 4 and the mortar pool, and the air compressor presses the mortar into the interior of the second grouting pipe 4, and squeezes the air inside the second grouting pipe 4 into the interior of the cylinder 64. The pressure grouting increases and pushes the drill bit 63 and the fixed rod 61 out of the interior of the cylinder. One end of the drill bit 63 is conical, which is convenient for the drill bit 63 to crush the initially solidified mortar. The drill bit 63 drives the fixed rod 61 and the nozzle 62 to slide out from the inside of the barrel 64. When the mortar is sprayed from the nozzle 62 on the side wall of the fixed rod 61, the mortar is sprayed downwardly through the nozzle 62, and an upward thrust is exerted on the barrel 64 and the lifting mechanism 5, which is convenient for lifting the second grouting pipe 4 upward; at the same time, the direction in which the mortar is sprayed from the nozzle 62 is tangent to the side wall of the fixed rod 61, pushing the fixed rod 61 to rotate clockwise, and the inside of the barrel 64 and the top of the fixed rod 61 are both hexagonal prism structures. The rotation of the barrel 64 drives the fixed rod 61 and the lifting rod 51 to rotate, and the lifting rod 51 drives the blade 52 to rotate clockwise (as shown in the attached figure). Figure 4 As shown in the figure), the spiral blade 52 rotates upward to cut the mortar, chopping up the mortar above the lifting rod 51, thereby reducing the resistance of the second grouting pipe 4 to be pulled out upward.

[0026] The reset mechanism 7 includes a rubber ring 71, a first magnetic ring 72, a spring 73 and a second magnetic ring 74. The inside of the cylinder 64 is fixedly connected to the rubber ring 71 and the first magnetic ring 72; the side wall of the sealing ring 65 is fixedly connected to the second magnetic ring 74, a plurality of springs 73 are installed between the rubber ring 71 and the sealing ring 65, and the first magnetic ring 72 absorbs the second magnetic ring 74. The side wall of the rubber ring 71 is slidably connected to the fixing rod 61, and the first magnetic ring 72 is located between the rubber ring 71 and the second magnetic ring 74; when the drill bit 63 drives the spray head 62 to gradually slide out of the inside of the cylinder 64, the fixing rod 61 moves downward to compress the spring 73. When the spray head 62 slides out of the inside of the cylinder 64, the first magnetic ring 72 absorbs the second magnetic ring 74, thereby fixing the position of the fixing rod 61 to prevent the fixing rod 61 from shaking when the fixing rod 61 sprays mortar.

[0027] One end of the drill bit 63 is in a conical structure, and the maximum diameter of the drill bit 63 is equal to the inner diameter of the cylinder 64 , so that the drill bit 63 can seal the bottom end of the cylinder 64 and prevent mortar from entering the interior of the cylinder 64 and clogging the nozzle 62 .

[0028] The anti-floating anchor rod 2 is welded by a fixed head 22 and a plurality of steel bars 23. In order to enable the fixed head 22 to support the steel bars 23, avoid the bottom end of the steel bars 23 from contacting the lowest end of the borehole, and prevent the drilling slag from contacting the steel bars 23; a plurality of guard rods 21 are welded on the side walls of the steel bars 23 to increase the firmness of the steel bars 23.

[0029] The working principle of the anti-floating anchor rod for the basement provided by the utility model is as follows: the anti-floating anchor rod 2 is placed into the borehole, and when the anti-floating anchor rod 2 is grouting through the first grouting pipe 3, the first grouting pipe 3 is gradually pulled out from the borehole during the grouting process; when the mortar enters the borehole, the drill bit 63 and the nozzle 62 are located inside the cylinder 64, and the drill bit 63 prevents the mortar from entering the cylinder 64 and contacting the nozzle 62, thereby preventing the mortar from clogging the nozzle 62. After the mortar of the anti-floating anchor rod 2 is initially solidified, the air compressor is connected to the second grouting pipe 4 and the mortar pool, and the air compressor presses the mortar into the interior of the second grouting pipe 4, and squeezes the air inside the second grouting pipe 4 into the interior of the cylinder 64. The pressure grouting increases and pushes the drill bit 63 and the fixing rod 61 to slide out from the interior of the cylinder. One end of the drill bit 63 is conical, which is convenient for the drill bit 63 to crush the initially solidified mortar, so that the drill bit 63 drives the fixing rod 61 and the nozzle 62 to slide out from the interior of the cylinder 64. When the mortar is sprayed out from the nozzle 62 on the side wall of the fixing rod 61, the mortar is poured through the nozzle 62. It is sprayed obliquely downward, and an upward thrust is exerted on the barrel 64 and the lifting mechanism 5, so as to facilitate lifting the second grouting pipe 4 upward; at the same time, the direction in which the mortar is sprayed from the nozzle 62 is tangent to the side wall of the fixed rod 61, pushing the fixed rod 61 to rotate clockwise, and the interior of the barrel 64 and the top of the fixed rod 61 are both hexagonal prism structures. The rotation of the barrel 64 drives the fixed rod 61 and the lifting rod 51 to rotate, and the lifting rod 51 drives the blade 52 to rotate clockwise, and the spiral blade 52 rotates to cut the mortar upward, and the mortar above the lifting rod 51 is chopped up, reducing the resistance of the second grouting pipe 4 to be pulled out upward. When the nozzle 62 rotates to spray mortar, the mortar quickly enters between the multiple steel bars 23, and the mortar is sprayed from the gaps between the steel bars 23 to squeeze and crush the mortar that is easy to initially set. Since the sprayed mortar is sprayed from the center to the surroundings, the initially set mortar begins to break from the middle to the surroundings. At the same time, the nozzle 62 rotates continuously, so that the mortar enters the initially set mortar more evenly, which facilitates the penetration, extrusion and diffusion of cement slurry in the initially set mortar and the surrounding strata, thereby improving the effect of secondary grouting.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A basement anti-floating anchor rod, characterized in that: include: An anti-floating anchor rod (2), the anti-floating anchor rod (2) being installed below the basement floor (1), the side wall of the anti-floating anchor rod (2) being used for binding a first grouting pipe (3) for the first grouting, and the interior of the anti-floating anchor rod (2) being used for binding a second grouting pipe (4) for the second grouting; A lifting mechanism (5) for reducing the upward resistance of the second grouting pipe (4) is installed at the bottom end of the lifting mechanism (5), and the injection mechanism (6) comprises a fixed rod (61), a nozzle (62), a drill bit (63), a cylinder (64) and a sealing ring (65). The bottom end of the lifting mechanism (5) is fixedly connected to the cylinder (64), and the interior of the cylinder (64) is slidably connected to the fixed rod (61), the drill bit (63) and the sealing ring (65). The drill bit (63) and the sealing ring (65) are installed at both ends of the fixed rod (61). A plurality of nozzles (62) are obliquely installed at the bottom end of the fixed rod (61), and a reset mechanism (7) is installed inside the cylinder (64).

2. The basement anti-floating anchor rod according to claim 1, characterized in that: The lifting mechanism (5) comprises a lifting rod (51) and a blade (52); the top end of the lifting rod (51) is rotatably connected to the second grouting pipe (4); and the spiral blade (52) is installed on the side wall of the lifting rod (51).

3. The basement anti-floating anchor rod according to claim 2, characterized in that: The bottom end of the lifting rod (51) is fixedly connected to the cylinder (64), and the interior of the cylinder (64) and the top end of the fixing rod (61) both present a hexagonal column structure.

4. The basement anti-floating anchor rod according to claim 3, characterized in that: The reset mechanism (7) comprises a rubber ring (71), a first magnetic ring (72), a spring (73) and a second magnetic ring (74); the interior of the cylinder (64) is fixedly connected to the rubber ring (71) and the first magnetic ring (72); the side wall of the sealing ring (65) is fixedly connected to the second magnetic ring (74); a plurality of springs (73) are installed between the rubber ring (71) and the sealing ring (65), and the first magnetic ring (72) adsorbs the second magnetic ring (74).

5. The basement anti-floating anchor rod according to claim 4, characterized in that: The side wall of the rubber ring (71) is slidably connected to the fixing rod (61), and the first magnetic ring (72) is located between the rubber ring (71) and the second magnetic ring (74).

6. The basement anti-floating anchor rod according to claim 1, characterized in that: One end of the drill bit (63) is in a conical structure, and the maximum diameter of the drill bit (63) is equal to the inner diameter of the cylinder (64).

7. The basement anti-floating anchor rod according to claim 1, characterized in that: The anti-floating anchor rod (2) is welded from a fixed head (22) and a plurality of steel bars (23), and a plurality of stop rods (21) for increasing the firmness of the steel bars (23) are welded to the side walls of the steel bars (23).

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