A prestressed stress transmission device for anti-floating anchor rod

Abstract

The present invention relates to a prestressed stress transmission device for an anti-floating anchor rod, comprising a lower connecting tube, an upper connecting tube, a top plate, and a rotating member. The upper connecting tube is sleeved in the lower connecting tube. N bolts arranged in a circular array are screwed onto the wall of the lower connecting tube for locking the upper connecting tube. The tail ends of the bolts abut against the outer side surface of the upper connecting tube. The top plate is installed on the top of the upper connecting tube. The rotating member is rotatably installed in the top plate and the upper connecting tube. Four anchor rod through-holes for installing anti-floating anchor rods are provided in the rotating member. An anchor rod locking mechanism for locking the anti-floating anchor rods is installed on the rotating member. The beneficial effects are as follows: the prestressed stress transmission device of the present invention is easy to install, easy to adjust and replace anti-floating anchor rods, and has good stability in fixing the anti-floating anchor rods.

Description

Technical Field

[0001] The invention relates to the field of construction engineering, and in particular to a prestressed stress transmission device for an anti-floating anchor rod. Background Art

[0002] When the weight of a building's basement and the covering soil cannot offset the buoyancy generated by groundwater, vertical anti-floating anchors can be installed to eliminate the adverse effects of groundwater buoyancy and ensure the stability and safety of the basement. The anti-floating anchor is a tensile member, anchored at one end to the building's floor and at the other end to the bearing layer of the foundation. The force-bearing process first transmits the upward pull to the grouting through the interaction between the anchor reinforcement and the grouting. Then, the force exerted on the grouting is transmitted to the surrounding stable soil through the friction between the grouting and the surrounding soil layer, thus forming an anti-floating anchor with a certain pull-out resistance, playing the role of anti-floating anchors in anti-floating. In addition to balancing the buoyancy of groundwater, the anti-floating anchor can also play a role in strengthening the foundation, thereby reducing foundation deformation and uneven settlement. However, in the current construction of anti-floating anchors, the stability of the prestressed transfer device is poor. When the anti-floating anchor becomes unsuitable, it is not convenient to replace it, which affects the overall convenience of indoor floor construction. Summary of the Invention

[0003] The purpose of the present invention is to overcome the poor stability of the prestressed transfer device in the prior art, and to provide a prestressed transfer device for anti-floating anchor rods, which is inconvenient to replace when the anti-floating anchor rod is inappropriate, thereby affecting the overall construction convenience of the indoor floor.

[0004] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0005] A prestressed stress transmission device for an anti-floating anchor comprises a circular tubular lower connecting tube, a circular tubular upper connecting tube, a top plate with a square outer edge and a circular inner edge, and a circular rotating member. The upper connecting tube is sleeved in the lower connecting tube, and N bolts arranged in a circular array are screwed on the wall of the lower connecting tube for locking the upper connecting tube. The tail ends of the bolts abut against the outer side surface of the upper connecting tube, the top plate is installed on the top of the upper connecting tube, and the rotating member is rotatably installed in the top plate and the upper connecting tube. Four anchor through-holes for installing anti-floating anchors are provided in the rotating member, and an anchor locking mechanism for locking the anti-floating anchor is installed on the rotating member.

[0006] Furthermore, N rows of screw holes are drilled on the wall of the upper connecting tube, each row of screw holes includes multiple first screw holes evenly distributed on the same straight line, and the tail of each bolt can be screwed into any first screw hole in any row of screw holes.

[0007] The top outer side of the upper connecting tube is provided with an external thread, and the bottom center of the top plate is provided with a second screw hole, and the second screw hole is screwed into the external thread so that the top plate is screwed to the top of the upper connecting tube.

[0008] Among them, the rotating component includes a circular rotating ring body, four C-shaped blocks, four support tubes, and a mounting tube. The rotating ring body, C-shaped block, support tube and mounting tube are made of an integral whole. The C-shaped block is connected to the inner side of the rotating ring body. A circular anchor rod through-hole is formed between the C-shaped block and the rotating ring body. One end of the support tube is connected to the C-shaped block, and the other end of the support tube is connected to the bottom of the mounting tube and the adjacent support tube. The rotating ring body is coaxial with the mounting tube. The four C-shaped blocks and four support tubes are arranged in a circular array with the mounting tube as the center, and the support tube is connected to the anchor rod through-hole and the mounting tube; an inlet and outlet hole coaxial with the mounting tube is provided at the junction of the four support tubes.

[0009] Among them, the anchor rod locking mechanism includes four cylindrical pressure blocks and an external gear. The pressure blocks are sleeved in the support tube. The top end of the external gear is fixedly connected with an external threaded column. The top of the mounting tube is provided with a third screw hole. The external threaded column passes through the entry and exit holes from bottom to top and is screwed into the third screw hole. The external gear passes through the entry and exit holes from bottom to top and enters the mounting tube and the support tube; each of the pressure blocks is fixedly connected to a rack toward one end of the mounting tube, and the external gear is engaged with four racks at the same time.

[0010] The racks on the two pressing blocks located on the same straight line are on the same horizontal plane, and the racks on the two pressing blocks located on the same straight line are arranged in a centrally symmetrical manner with the outer gear as the center.

[0011] Among them, a circle of convex rings is provided in the middle of the outer side of the rotating ring body, a circle of accommodating grooves is provided on the inner side of the top of the upper connecting tube, and a circle of horizontally inwardly protruding limiting flanges is provided at the top center of the top plate. The convex ring is rotatably installed between the limiting flange and the accommodating groove.

[0012] The beneficial effects of the present invention are: thanks to the split design of the upper connecting tube and the lower connecting tube, the present invention can effectively save space occupancy during transportation, save transportation costs on construction sites, and can be unfolded when in use; since the rotating component is rotatably connected to the top plate and the upper connecting tube, after the anti-floating anchor rod and the installation pipe are installed accordingly, the anti-floating anchor rod can be rotated before concrete pouring, and concrete pouring can be carried out after rotating to the required position; when the anti-floating anchor rod is installed, the anchor rod locking mechanism can be used to limit and fix the anti-floating anchor rod, ensuring that the anti-floating anchor rod will not rise and fall and shake during pouring, thereby improving the stability during pouring, and the anti-floating anchor rod will not affect the displacement; the prestressed transmission device of the present invention is easy to install, easy to adjust and replace the anti-floating anchor rod, and the anti-floating anchor rod has good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0014] Figure 1 This is a schematic structural diagram of the prestressed stress transfer device in the present invention in an expanded state;

[0015] Figure 2 This is a schematic structural diagram of the prestressed stress transfer device in the present invention in a stored state;

[0016] Figure 3 It is a structural schematic diagram of the upper connecting tube in the present invention;

[0017] Figure 4 It is a structural schematic diagram of the top plate in the present invention;

[0018] Figure 5 This is a schematic diagram of the structure of the anchor rod locking mechanism installed in the rotating component in the present invention;

[0019] Figure 6 This is a schematic structural diagram of the rotating component in the present invention from a first perspective;

[0020] Figure 7 This is a schematic structural diagram of the rotating component of the present invention from a second viewing angle;

[0021] Figure 8 It is a structural schematic diagram of the anchor rod locking mechanism of the present invention;

[0022] Explanation of the numbers in the figure: lower connecting tube 1, hollow hole 11, upper connecting tube 2, first screw hole 21, hollow hole 22, external thread 23, accommodating groove 24, top plate 3, second screw hole 31, limiting flange 32, rotating member 4, rotating ring body 41, C-shaped block 42, support tube 43, mounting tube 44, anchor rod through hole 45, inlet and outlet hole 46, convex ring 47, third screw hole 48, anchor rod locking mechanism 5, pressure block 51, external gear 52, external threaded column 53, hexagonal head 54, rack 55, arc-shaped groove 56, bolt 6. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0024] like Figures 1 to 8 As shown, a prestressed stress transmission device for anti-floating anchor rods includes a circular tubular lower connecting tube 1, a circular tubular upper connecting tube 2, a top plate 3 with an outer square and an inner circle, and a circular rotating component 4. Four anchor rod through-holes for installing anti-floating anchor rods are provided in the rotating component 4, and an anchor rod locking mechanism 5 for locking the anti-floating anchor rods is installed on the rotating component 4.

[0025] The upper connecting tube 2 is sleeved in the lower connecting tube 1 . Four bolts 6 arranged in a circular array are screwed onto the wall of the lower connecting tube 1 for locking the upper connecting tube 2 . The tail ends of the bolts 6 abut against the outer side surface of the upper connecting tube 2 .

[0026] In order to improve the stability of the connection between the upper connecting tube 2 and the lower connecting tube 1, four rows of screw holes are drilled on the wall of the upper connecting tube 2. Each row of screw holes includes multiple first screw holes 21 evenly distributed on the same straight line. The tail of each bolt 6 can be screwed into any first screw hole 21 in any row of screw holes.

[0027] Four hollow holes 11 are provided on the wall of the lower connecting tube 1, and four hollow holes 22 are provided on the wall of the upper connecting tube 2, so that concrete can enter the anchor rod casting hole through the hollow holes (11, 22) during casting.

[0028] The top plate 3 is installed on the top of the upper connecting tube 2. Specifically, an external thread 23 is provided on the outer side of the top of the upper connecting tube 2, and a second screw hole 31 is provided in the center of the bottom of the top plate 3. The second screw hole 31 is screwed into the external thread 23 so that the top plate 3 is screwed to the top of the upper connecting tube 2.

[0029] The rotating component 4 includes a circular rotating ring body 41, four C-shaped blocks 42, four support tubes 43, and a mounting tube 44. The rotating ring body 41, C-shaped blocks 42, support tubes 43 and mounting tube 44 are made into one piece. The C-shaped block 42 is connected to the inner side of the rotating ring body 41. A circular anchor rod through-hole 45 is formed between the C-shaped block 42 and the rotating ring body 41. One end of the support tube 43 is connected to the C-shaped block 42, and the other end of the support tube 43 is connected to the bottom of the mounting tube 44 and the adjacent support tube 43. The rotating ring body 41 is coaxial with the mounting tube 44. The four C-shaped blocks 42 and the four support tubes 43 are arranged in a circular array with the mounting tube 44 as the center, and the support tube 43 is connected to the anchor rod through-hole 45 and the mounting tube 44; the junction of the four support tubes 43 is provided with an inlet and outlet hole 46 coaxial with the mounting tube 44.

[0030] The rotating member 4 is rotatably installed in the top plate 3 and the upper connecting tube 2. Specifically, a circle of convex rings 47 is provided in the middle part of the outer side of the rotating ring body 41, a circle of accommodating grooves 24 is provided on the inner side of the top of the upper connecting tube 2, and a circle of horizontally inwardly protruding limiting flanges 32 is provided at the top center of the top plate 3. The convex ring 47 is rotatably installed between the limiting flanges 32 and the accommodating grooves 24.

[0031] The anchor locking mechanism 5 includes four cylindrical pressure blocks 51 and an external gear 52. The pressure block 51 is sleeved in the support tube 43. The top of the external gear 52 is fixedly connected with an external threaded column 53. The top of the external threaded column 53 is provided with a hexagonal head 54 for screwing the external threaded column 53. The top of the mounting tube 44 is provided with a third screw hole 48. The external threaded column 53 passes through the entry and exit hole 46 from bottom to top and is screwed into the third screw hole 48. The external gear 52 passes through the entry and exit hole 46 from bottom to top and enters the mounting tube 44 and the support tube 43.

[0032] A rack 55 is fixedly connected to one end of each pressing block 51 facing the mounting tube 44, and the external gear 52 is engaged with the four racks 55 at the same time; the racks 55 on the two pressing blocks 51 located on the same straight line are on the same horizontal plane, and the racks 55 on the two pressing blocks 51 located on the same straight line are arranged in a centrally symmetrical manner with the external gear 52 as the center.

[0033] An arcuate groove 56 is formed at one end of the pressing block 51 facing the anchor rod through-hole 45 , and a surface of the arcuate groove 56 is provided with a grid-shaped anti-slip pattern.

[0034] During storage and transportation, the upper connecting tube is inserted into the lower connecting tube, and the bottom ends of the upper connecting tube are aligned with the bottom ends of the lower connecting tube, which can effectively save storage and transportation space and reduce transportation costs at the construction site. The tail end of the screw is used to abut the outer side of the upper connecting tube to lock the upper connecting tube into the lower connecting tube, preventing the upper and lower connecting tubes from separating during transportation.

[0035] During use, according to the installation requirements of the ground, after stretching the upper connecting tube and the lower connecting tube to the required length, rotate the bolt so that the tail of the bolt is screwed into the first screw hole at the corresponding position, and then install the prestressed transmission device as a whole in the ground so that the top plate is flush with the ground, and the upper connecting tube and the lower connecting tube are extended into the ground, and then the anti-floating anchor rod is inserted into the anchor rod through-hole, and the anti-floating anchor rod passes through the anchor rod through-hole into the upper connecting tube and the lower connecting tube. After the anti-floating anchor rod and the installation pipe are installed accordingly, they can be adjusted in time according to the installation position requirements of the anti-floating anchor rod. Since the rotating component is rotatably connected to the top plate and the upper connecting tube, the anti-floating anchor rod and the rotating component can be rotated before concrete pouring, and concrete pouring can be carried out after rotating to the required position.

[0036] During installation, the anti-floating anchor rod is secured in place by an anchor rod locking mechanism, ensuring it does not rise or fall during pouring, enhancing stability and preventing displacement. Operation is accomplished by rotating the hexagonal head, which causes the external gear to drive the rack and pressure block toward the anchor rod's perforation until the pressure block engages the rotating ring to secure the anti-floating anchor rod.

[0037] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A prestressed stress transmission device for an anti-floating anchor, characterized in that: It includes a circular tubular lower connecting tube, a circular tubular upper connecting tube, a top plate with an outer square and an inner circle, and a circular rotating component. The upper connecting tube is sleeved in the lower connecting tube. Four bolts arranged in a circular array are screwed on the wall of the lower connecting tube for locking the upper connecting tube. The tail ends of the bolts abut against the outer side surface of the upper connecting tube. The top plate is installed on the top of the upper connecting tube. The rotating component is rotatably installed in the top plate and the upper connecting tube. Four anchor through-holes for installing anti-floating anchors are provided in the rotating component. An anchor locking mechanism for locking the anti-floating anchor is installed on the rotating component. The rotating component includes a circular rotating ring body, four C-shaped blocks, four support tubes, and a mounting tube. The rotating ring body, C-shaped blocks, support tube and mounting tube are made of an integral body. The C-shaped blocks are connected to the inner side of the rotating ring body. A circular anchor rod through-hole is formed between the C-shaped blocks and the rotating ring body. One end of the support tube is connected to the C-shaped block, and the other end of the support tube is connected to the bottom of the mounting tube and the adjacent support tube. The rotating ring body is coaxial with the mounting tube. The four C-shaped blocks and the four support tubes are arranged in a circular array with the mounting tube as the center, and the support tube is connected to the anchor rod through-hole and the mounting tube; an inlet and outlet hole coaxial with the mounting tube is provided at the junction of the four support tubes; The anchor rod locking mechanism includes four cylindrical pressure blocks and an external gear. The pressure blocks are sleeved in the support tube. The top end of the external gear is fixedly connected to an external threaded column. The top of the mounting tube is provided with a third screw hole. The external threaded column passes through the entry and exit holes from bottom to top and is screwed into the third screw hole. The external gear passes through the entry and exit holes from bottom to top and enters the mounting tube and the support tube; each of the pressure blocks is fixedly connected to a rack toward one end of the mounting tube, and the external gear is engaged with four racks at the same time.

2. The prestressed force transfer device according to claim 1, characterized in that: A plurality of hollow holes are respectively provided on the cylinder wall of the lower connecting cylinder and the cylinder wall of the upper connecting cylinder.

3. The prestressed force transfer device according to claim 1, characterized in that: Four rows of screw holes are drilled on the wall of the upper connecting tube, each row of screw holes includes multiple first screw holes evenly distributed on the same straight line, and the tail of each bolt can be screwed into any first screw hole in any row of screw holes.

4. The prestressed stress transfer device according to claim 1, characterized in that: An external thread is provided on the outer side of the top of the upper connecting tube, and a second screw hole is provided at the center of the bottom of the top plate. The second screw hole is screwed into the external thread so that the top plate is screwed to the top of the upper connecting tube.

5. The prestressed force transfer device according to claim 1, characterized in that: The racks on the two pressing blocks located on the same straight line are on the same horizontal plane, and the racks on the two pressing blocks located on the same straight line are arranged in a centrally symmetrical manner with the outer gear as the center.

6. The prestressed stress transfer device according to claim 1, characterized in that: An arc-shaped groove is provided on one end of the pressing block facing the anchor rod through-hole, and a grid-shaped anti-slip pattern is provided on the surface of the arc-shaped groove.

7. The prestressed stress transfer device according to claim 1, characterized in that: The top end of the external thread column is provided with a hexagonal head for screwing the external thread column.

8. The prestressed force transfer device according to claim 1, characterized in that: A circle of convex rings is provided in the middle of the outer side of the rotating ring body, a circle of accommodating grooves is provided on the inner side of the top of the upper connecting tube, and a circle of horizontally inwardly protruding limiting flanges is provided at the top center of the top plate. The convex ring is rotatably installed between the limiting flanges and the accommodating grooves.

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