Water stop device for tensioning end of prestressed anti-floating anchor rod

Abstract

The utility model provides a prestress anti-floating anchor rod tensioning end water stopping device which comprises a protection pipe embedded in a cushion layer. The water stop plate is welded and fixed on the side wall of the protective pipe; the anchorage device comprises an anchor ring, an anchor plug and a prestressed tendon, the prestressed tendon penetrates through the cushion layer through the protection pipe and is inserted into an anchor hole, the anchor plug is installed at one end of the prestressed tendon, and the anchor plug is clamped in the anchor ring; the anchor ring is mounted in the anchoring structure; the blocking structure comprises a cover plate and a guide pipe, the cover plate is installed in the top end of the anchoring cylinder, and the guide pipe is fixed to the top face of the cover plate; the water stop device for the tensioning end of the prestressed anti-floating anchor rod has the advantage that external moisture can be effectively prevented from permeating during grouting after tensioning.

Description

TECHNICAL FIELD

[0001] The utility model relates to building construction technical field especially relates to a prestressed anti floating anchor rod tensioning end water stop device. BACKGROUND

[0002] Compared with common anti floating anchor rod, prestressed anti floating anchor rod has certain advantages, that is, under the action of load, the grouting body of prestressed anti floating anchor rod will not appear fracture crack, thereby meeting the overall anti permeation waterproof requirement of anchor rod body.

[0003] At present, some existing basement prestressed anti floating anchor rods, in the process of construction, due to tensioning through the top end of prestressed tendon, the limiting position of the top end of prestressed tendon is exposed, therefore when grouting after tensioning, the moisture of outside will enter into the anchor rod through the opening of the top end, thereby affecting the quality of anchor rod.

[0004] Therefore, it is necessary to provide a new prestressed anti floating anchor rod tensioning end water stop device to solve the above technical problems. UTILITY MODEL CONTENT

[0005] The utility model solves the technical problem to provide a prestressed anti floating anchor rod tensioning end water stop device which can effectively prevent the infiltration of external moisture when grouting after tensioning.

[0006] In order to solve the above technical problems, the prestressed anti floating anchor rod tensioning end water stop device provided by the utility model comprises a protective tube embedded in the inside of a cushion layer, a water stop plate welded and fixed to the side wall of the protective tube, an anchor device comprising an anchor ring, an anchor plug and a prestressed tendon, the prestressed tendon penetrating the cushion layer and inserted into an anchor hole through the protective tube, the anchor plug being installed at one end of the prestressed tendon and clamped in the inside of the anchor ring, an anchoring structure, the anchor ring being installed in the inside of the anchoring structure, the anchoring structure comprising an anchoring cylinder, a backing plate and a horn pipe, the anchor ring being installed in the inside of the anchoring cylinder, the backing plate being welded and fixed to the bottom end of the anchoring cylinder, and the horn pipe being fixed to the bottom end of the anchoring cylinder, and a plugging structure, the plugging structure comprising a cover plate and a guide pipe, the cover plate being installed in the inside of the top end of the anchoring cylinder, and the guide pipe being fixed to the top surface of the cover plate.

[0007] Preferably, a corrugated pipe is installed at the bottom end of the horn pipe, and a spiral tendon is sleeved on the periphery of the corrugated pipe.

[0008] Preferably, the protective tube penetrates the cushion layer and communicates with the anchor hole, and the bottom surface of the water stop plate covers the surface of the connection point between the cushion layer and the protective tube.

[0009] Preferably, the inner side wall of the top end of the anchoring cylinder is provided with threads, and the side wall of the cover plate is also provided with corresponding threads, and the anchoring cylinder and the cover plate are threadedly connected.

[0010] Preferably, the inside of the guide pipe is hollow, the anchoring cylinder and the horn pipe are in communication with each other, the inside of the top end of the anchoring cylinder is in communication with the outside through the guide pipe, and the bottom end of the anchoring cylinder is in communication with the corrugated pipe through the horn pipe.

[0011] Preferably, the anchoring ring is provided with a through hole at the center, the inner diameter of the through hole is consistent with the inner diameter of the guide pipe, and the through hole is directly below the guide pipe.

[0012] Compared with the related art, the prestressed anti-floating anchor rod tensioning end water stop device has the following beneficial effects:

[0013] The utility model provides a kind of prestressed anti-floating anchor rod tensioning end water stop device, first to carry out the anchoring hole on foundation, then with the position of anchoring hole The protective tube is placed at anchoring hole mouth, the anchoring hole is shielded, then the mat layer is laid on the surface of foundation, the thickness of the laid mat layer reaches the thickness of the water stop plate from ground, the water stop plate is covered on the surface of the mat layer and the protective tube connecting point, to effectively prevent groundwater from seeping upwards, by the corrugated pipe sleeve in the bottom end of the anchoring structure, the spiral rib is supported, then the anchorage device is inserted through the top opening of the anchoring structure, the position of the prestressed tendon is limited by the positioning card, then the anchorage device is inserted into anchoring hole, again pouring concrete into anchoring hole, after completely solidifying, the prestressed tendon is tensioned, after tensioning, the prestressed tendon extending out of the top end of the anchoring structure is cut, then the plugging structure is threadedly connected to the top opening of the anchoring structure, the top opening of the anchoring structure can be effectively closed, so that water cannot seep in, then fill layer is laid on the surface of the mat layer, then concrete is poured into the inside of the anchorage device through the guide pipe provided at the top of the plugging structure, when laying surface layer, the guide pipe is cut off, this device has the advantages that it is convenient to grout after tensioning, and external moisture can be effectively prevented from entering. ACCURACY

[0014] Figure 1 It is a preferred embodiment of the structure of the prestressed anti-floating anchor rod tensioning end water stop device provided by the utility model.

[0015] Figure 2 It is Figure 1 It is the structure diagram of the three-dimensional separation display of the plugging structure shown in the figure.

[0016] Figure 3 for Figure 2 The enlarged structural diagram of part A is shown.

[0017] Numbers in the figure: 1. Protective pipe, 2. Spiral reinforcement, 3. Corrugated pipe, 4. Anchoring structure, 41. Anchoring tube, 42. Pad, 43. Trumpet pipe, 5. Anchor, 51. Anchor ring, 52. Anchor plug, 53. Prestressed reinforcement, 6. Sealing structure, 61. Cover plate, 62. Guide pipe, 7. Positioning card, 8. Water stop plate, 9. Pad. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0019] See also Figures 1 to 3 , Figure 1 A schematic structural diagram of a preferred embodiment of the prestressed anti-floating anchor tensioning end water-stopping device provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the structure of the blocking structure shown is a three-dimensional separation display; Figure 3 for Figure 2 The enlarged structural diagram of part A is shown, in which the prestressed anti-floating anchor tensioning end water-stop device includes: a protective tube 1, which is embedded in the interior of the cushion layer 9; a water-stop plate 8, which is welded and fixed to the side wall of the protective tube 1; an anchor 5, which includes an anchor ring 51, an anchor plug 52 and a prestressed tendon 53, the prestressed tendon 53 passes through the protective tube 1 through the cushion layer 9 and is inserted into the anchor hole, the anchor plug 52 is installed at one end of the prestressed tendon, and the anchor plug 52 is engaged with the interior of the anchor ring 51; an anchoring structure 4, The anchor ring 51 is installed inside the anchoring structure 4, and the anchoring structure 4 includes an anchoring tube 41, a pad 42 and a trumpet 43. The anchor ring 51 is installed inside the anchoring tube 41, the pad 42 is welded and fixed to the bottom end of the anchoring tube 41, and the trumpet 43 is fixed to the bottom end of the anchoring tube 41; the sealing structure 6, the sealing structure 6 includes a cover plate 61 and a guide tube 62, the cover plate 61 is installed inside the top end of the anchoring tube 41, and the guide tube 62 is fixed to the top surface of the cover plate 61.

[0020] In the specific implementation process, Figure 1 and Figure 3 As shown, a bellows 3 is installed at the bottom end of the trumpet tube 43, and a spiral rib 2 is sleeved on the outer periphery of the bellows 3; it is convenient to protect a section of the top end of the prestressed rib 53 through the bellows 3, and at the same time enable the bellows 3 to support and limit the spiral rib 2.

[0021] In the specific implementation process, Figure 1As shown, the pipe 1 is communicated with the anchor hole through the cushion layer 9, and the bottom surface of the water stop plate 8 covers the surface at the connecting point of the cushion layer 9 and the pipe 1; thus, the underground water is prevented from leaking through the gap between the pipe 1 and the cushion layer 9 by the water stop plate 8.

[0022] In the specific implementation process, as shown in Figure 1 、 Figure 2 and Figure 3 , the inner side wall of the top end of the anchoring cylinder 41 is provided with a thread, and the side wall of the cover plate 61 is also provided with a corresponding thread, and the anchoring cylinder 41 is threadedly connected with the cover plate 61; the inside of the guide pipe 62 is hollow, the anchoring cylinder 41 and the horn pipe 43 are communicated with each other, the inside of the top end of the anchoring cylinder 41 is communicated with the outside through the guide pipe 62, and the bottom end of the anchoring cylinder 41 is communicated with the corrugated pipe 3 through the horn pipe 43; thus, the top end opening of the anchoring cylinder 41 can be closed through the thread connection between the cover plate 61 and the anchoring cylinder 41, and the inside of the anchoring cylinder 41 can be grouted through the guide pipe 62; the anchoring ring 51 is provided with a through hole at the center, the inner diameter of the through hole is consistent with the inner diameter of the guide pipe 62, and the through hole is directly below the guide pipe 62.

[0023] The working principle of the water stop device for the prestressed anti-floating anchor rod tensioning end provided by the utility model is as follows:

[0024] In use, first, drill anchor hole on the foundation, then place the protective pipe 1 at the anchor hole, lay the cushion 9 with the thickness of the water stop plate 8, embed the protective pipe 1 in the cushion 9, make the water stop plate 8 fixed by the side wall of the protective pipe 1 on the surface of the cushion 9, then put the bellows 3 on the bottom end of the trumpet tube 43, prevent the anchor ring 51 inside the anchoring cylinder 41, pass the prestressed tendon 53 through the through hole at the edge position of the anchor ring 51, make the other end of the prestressed tendon 53 install the anchor plug 52, make the anchor plug 52 engage in the through hole of the anchor ring 51, position the prestressed tendon 53, then make the positioning card 7 of the corresponding anchor hole inner diameter size equidistantly engage on the side wall of the prestressed tendon 53, make the prestressed tendons 53 can be supported apart by the positioning card 7, so that the prestressed tendons 53 cannot be intertwined together, thereby enabling the prestressed tendons 53 to achieve the best effect, then insert the bottom end of the prestressed tendon 53 into the anchor hole from the top end opening of the protective pipe 1, then pour concrete into the anchor hole, after solidification, lay the filling layer with the corresponding thickness on the surface of the cushion 9, then tension the prestressed tendon 53, after tensioning, cut off the prestressed tendon 53 extending out of the anchoring cylinder 41, install the cover plate 61 on the top end of the anchoring cylinder 41, make the top end opening of the anchoring cylinder 41 closed, then pour concrete into the inside of the anchor device 5 through the guide pipe 62, under the blockage of the cover plate 61, water can be effectively prevented from entering, after the concrete in the anchor device 5 is completely solidified, remove the guide pipe 62, and then pour the surface layer, the device has the advantages that when grouting after tensioning, water from the outside can be effectively prevented from entering.

[0025] Compared with the related art, the prestressed anti-floating anchor rod tensioning end water stop device has the following advantages:

[0026] The utility model provides a kind of prestressed anti-floating anchor rod tensioning end water stop device, first on foundation is carried out to open anchor hole, then with the position of anchor hole The protective tube 1 is placed at anchor hole mouth, the anchor hole is shielded, then the mat 9 is laid on foundation surface, the thickness of the mat 9 laid reaches the thickness of the water stop plate 8 distance ground, the water stop plate 8 is covered on the surface of the mat 9 and the protective tube 1 connecting point, to effectively prevent groundwater seepage upwards, by the corrugated pipe 3 is sleeved in the bottom end of the anchoring structure 4, the spiral rib 2 is supported, then the anchor device 5 is inserted by the top opening of the anchoring structure 4, by the positioning card 7 The position of the prestressed tendon 53 is limited, then the anchor device 5 is inserted into anchor hole, and then concrete is poured into anchor hole, after complete solidification, the prestressed tendon 53 is tensioned, after tensioning, the prestressed tendon 53 extending out of the top of the anchoring structure 4 is cut, then the plugging structure 6 is screwed to the top opening of the anchoring structure 4, the top opening of the anchoring structure 4 can be effectively closed, so that water cannot seep into, then fill layer is laid on the surface of the mat 9, then the guide pipe 62 provided at the top of the plugging structure 6 is used to pour concrete into the anchor device 5, when laying surface layer, the guide pipe 62 is cut off, this device has the advantages of facilitating grouting after tensioning, which can effectively prevent external moisture from entering.

[0027] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A water stop device for a tensioning end of a prestressed anti-floating anchor rod, characterized in that, Comprise; The pipe (1) is embedded in the inside of the cushion layer (9); The water stop plate (8) is welded and fixed to the side wall of the pipe (1); The anchor (5) comprises an anchor ring (51), an anchor plug (52) and a prestressed tendon (53), the prestressed tendon (53) is inserted into the anchor hole through the pipe (1) penetrating the cushion layer (9), the anchor plug (52) is installed at one end of the prestressed tendon (53), and the anchor plug (52) is clamped in the inside of the anchor ring (51); The anchor structure (4) is installed in the inside of the anchor structure (4), the anchor structure (4) comprises an anchor cylinder (41), a backing plate (42) and a horn pipe (43), the anchor ring (51) is installed in the inside of the anchor cylinder (41), the backing plate (42) is welded and fixed to the bottom end of the anchor cylinder (41), and the horn pipe (43) is fixed to the bottom end of the anchor cylinder (41); The sealing structure (6) comprises a cover plate (61) and a guide pipe (62), the cover plate (61) is installed in the inside of the top end of the anchor cylinder (41), and the guide pipe (62) is fixed to the top surface of the cover plate (61).

2. The water stop device for tensioning end of a prestressed anti-float anchor rod according to claim 1, characterized in that, The bottom end of the horn pipe (43) is provided with a corrugated pipe (3), and the outer periphery of the corrugated pipe (3) is sleeved with a spiral tendon (2).

3. The water stop device for tensioning end of a prestressed anti-float anchor rod according to claim 1, characterized in that, The pipe (1) penetrates the cushion layer (9) and communicates with the anchor hole, and the bottom surface of the water stop plate (8) covers the surface of the cushion layer (9) at the connection point of the pipe (1).

4. The water stop device for tensioning end of a prestressed anti-float anchor rod according to claim 1, characterized in that, The inside wall of the top end of the anchor cylinder (41) is provided with threads, and the side wall of the cover plate (61) is also provided with corresponding threads, and the anchor cylinder (41) and the cover plate (61) are threadedly connected.

5. The water stop device for tensioning end of a prestressed anti-float anchor rod according to claim 2, characterized in that, The inside of the guide pipe (62) is hollow, the anchor cylinder (41) and the horn pipe (43) are in communication with each other, the inside of the top end of the anchor cylinder (41) is communicated with the outside through the guide pipe (62), and the bottom end of the anchor cylinder (41) is communicated with the corrugated pipe (3) through the horn pipe (43).

6. The water stop device for tensioning end of a prestressed anti-float anchor rod according to claim 1, characterized in that, The anchor ring (51) is provided with a through hole at the center, the inner diameter of the through hole is consistent with the inner diameter of the guide pipe (62), and the through hole is directly below the guide pipe (62).

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