Anti-floating anchor rod splitting type grouting device

Abstract

The utility model provides anti -floating anchor rod split type grouting device, include: anti -floating anchor rod, the anti -floating anchor rod includes anchor rod main stem, anchor rod main stem is equipped with three groups and is circularly divided distribution, compared with prior art, the utility model has the beneficial effect as follows: through setting up anti -floating anchor rod and grouting subassembly, makes anti -floating anchor rod with grouting subassembly preposition splicing in building construction, makes grouting subassembly follow anti -floating anchor rod and leads into the hole, makes the external slurry to lead to the hole through the grouting pipe, and realizes sectional slurry filling through the sectional board, and sectional pressure gradually increases and makes sealed ball to separate and sealed seat sealed butt joint, linkage split block rotates and cuts the hole wall, forms multi -point, radial, vein -like grouting network, so as to be able to improve anchoring effect, through setting up grouting subassembly, split groove is located in the inner end sealed split groove through sealed metal spring piece in non -grouting stage, and reduces slurry reflux, so as to be able to assist grouting use.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and specifically relates to an anti-buoyancy anchor bolt splitting type grouting device. Background Technology

[0002] In construction engineering, anti-buoyancy anchors are a key technology for solving the problem of underground structures (such as basements, pools, and underground garages) floating due to the buoyancy of groundwater. The core process involves drilling holes in the foundation soil and rock, inserting reinforcing bars or steel strands, and then grouting to form an anchor body, firmly bonding the anchor to the ground and providing pull-out resistance. Traditional construction methods involve pre-installing anti-buoyancy anchors, drilling holes on-site, grouting the holes, and then inserting the anti-buoyancy anchors into the holes so that the grout coats them. This method is prone to grout segregation within the holes, making it difficult to guarantee full coverage and requiring repeated grout replenishment. This results in low construction efficiency, especially since grout constantly overflows during the anchor insertion process, wasting materials, causing pollution at the construction site, and increasing construction costs.

[0003] In summary, we hope to propose a new structure to solve the aforementioned technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an anti-buoyancy anchor bolt splitting grouting device to solve the problems mentioned in the background technology.

[0005] This utility model is achieved through the following technical solution: an anti-buoyancy anchor bolt splitting grouting device, comprising: an anti-buoyancy anchor bolt, wherein the anti-buoyancy anchor bolt includes an anchor bolt main rod, and the anchor bolt main rod is provided with three groups equally distributed in a circle;

[0006] A grouting assembly is installed on the outside of the main anchor rod. The grouting assembly includes a grouting pipe, segmented plates, splitting grooves, splitting blocks, sealing balls, and sealing seats. Several segments are fixedly connected to the outside of the grouting pipe.

[0007] The outer side of the grouting pipe is provided with three sets of circumferentially distributed splitting grooves corresponding to the lower part of each segment plate. The splitting grooves are fixedly connected to splitting blocks in a rotating structure. The upper surface of the segment plate is vertically penetrated to form three sets of through holes. The lower end of the inner side of the through holes is fixedly connected to a sealing seat, and a sealing ball is provided above the sealing seat.

[0008] In a preferred embodiment, an anchor base is fixedly connected to the bottom of the anchor rod, and three sets of positioning holes are vertically formed through the upper surface of the segment plate in a circumferentially evenly distributed manner.

[0009] In a preferred embodiment, the anchor rod is provided through the positioning hole, and a set of protrusions is fixedly connected to the upper surface of the segment plate corresponding to each set of through holes.

[0010] In a preferred embodiment, a spring seat is fixedly connected to the upper inner side of the protrusion, and a sealing spring is fixedly connected to the lower part of the spring seat. The lower end of the sealing spring is fixedly connected to the sealing ball.

[0011] In a preferred embodiment, the sealing ball is sealed to the sealing seat under the action of the rebound force of the sealing spring and the weight of the sealing ball. A connecting rod groove is provided at the center of the lower end of the outer side of the sealing ball. The sealing ball is sealed to the sealing seat under the action of the rebound force of the sealing spring and the weight of the sealing ball without the action of grout pressure, so as to realize segmented grouting within the preset pressure range.

[0012] In a preferred embodiment, the splitting block has a pointed lower end and the rotation axis is located at the upper end, and a limit stop is fixedly connected to the upper end of the inner side of the splitting groove away from the center of the grouting pipe.

[0013] In a preferred embodiment, a set of connecting rod grooves is also provided on the side of the splitting block away from the center of the grouting pipe. A set of connecting rods is fixedly connected to the inner side of the two sets of connecting rod grooves in a rotating structure. When the sealing ball moves up and disengages from the sealing seat, it drives the connecting rods to pull the splitting block to rotate.

[0014] In a preferred embodiment, an inner sealing groove is provided on the inner side of the grouting pipe around each set of splitting grooves. A sealing metal spring is fixedly connected to the inner side of the inner sealing groove via a rotating torsion spring. A sealing gasket is fixedly connected to the side of the sealing metal spring near the splitting block. The splitting groove is sealed at the inner end by the sealing metal spring during the non-grouting stage, which reduces grout backflow and thus assists in grouting.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are:

[0016] 1. By setting up anti-buoyancy anchors and grouting components, the anti-buoyancy anchors and grouting components are pre-assembled during construction. The grouting components are then guided into the hole along with the anti-buoyancy anchors. External grout is then delivered into the hole through the grouting pipe, and the grout is filled in segments through the segmented plate. The segmented pressure gradually increases, causing the sealing ball to detach from the sealing seat and seal. The linkage splitting block rotates and cuts the inner wall of the hole, forming a multi-point, radial, vein-like grouting network, thereby improving the anchoring effect.

[0017] 2. By setting up the grouting component, the splitting groove is sealed at the inner end by the sealing metal spring during the non-grouting stage, and the grout backflow is reduced, thereby assisting the grouting process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the anti-buoyancy anchor bolt splitting grouting device of this utility model.

[0020] Figure 2 This is a schematic diagram of the anti-buoyancy anchor bolt in the anti-buoyancy anchor bolt splitting grouting device of this utility model.

[0021] Figure 3 This is a schematic diagram of the upper structure of the grouting component in the anti-buoyancy anchor bolt splitting grouting device of this utility model.

[0022] Figure 4 This is a schematic diagram of the lower structure of the grouting component in the anti-buoyancy anchor bolt splitting grouting device of this utility model.

[0023] Figure 5 This is a partial cross-sectional schematic diagram of the grouting component in the anti-buoyancy anchor bolt splitting grouting device of this utility model.

[0024] In the diagram, 100 is the anti-buoyancy anchor, 101 is the anchor base, and 102 is the main anchor rod.

[0025] 200-Grouting component, 201-Grouting pipe, 202-Segment plate, 203-Positioning hole, 204-Split groove, 205-Limit stop, 206-Split block, 207-Inner sealing groove, 208-Sealing metal spring, 209-Conducting connecting rod, 210-Protrusion, 211-Spring seat, 212-Sealing spring, 213-Sealing ball, 214-Sealing seat. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 As the first embodiment of this utility model:

[0028] The anti-buoyancy anchor bolt splitting type grouting device includes: an anti-buoyancy anchor bolt 100, the anti-buoyancy anchor bolt 100 includes an anchor bolt main rod 102, and the anchor bolt main rod 102 is provided with three sets evenly distributed in a circle;

[0029] A grouting assembly 200 is installed on the outside of the anchor rod 102. The grouting assembly 200 includes a grouting pipe 201, a segmented plate 202, a splitting groove 204, a splitting block 206, a sealing ball 213, and a sealing seat 214. Several segments of the segmented plate 202 are fixedly connected to the outside of the grouting pipe 201.

[0030] Three sets of circumferentially distributed splitting grooves 204 are provided on the outer side of the grouting pipe 201 corresponding to the lower part of each segment plate 202. Splitting blocks 206 are fixedly connected to the inner side of the splitting grooves 204 in a rotating structure. Three sets of through holes are formed vertically through the upper surface of the segment plate 202. A sealing seat 214 is fixedly connected to the lower end of the inner side of the through hole. A sealing ball 213 is provided above the sealing seat 214.

[0031] An anchor base 101 is fixedly connected to the bottom of the anchor main rod 102, and three sets of positioning holes 203 are formed vertically through the upper surface of the segment plate 202 in a circularly evenly distributed manner.

[0032] The anchor rod 102 is set through the positioning hole 203, and a set of bosses 210 are fixedly connected to each set of through holes on the upper surface of the segment plate 202.

[0033] A spring seat 211 is fixedly connected to the upper inner side of the protrusion 210, and a sealing spring 212 is fixedly connected to the lower part of the spring seat 211. The lower end of the sealing spring 212 is fixedly connected to the sealing ball 213.

[0034] Under the action of the rebound force of the sealing spring 212 and the weight of the sealing ball 213, the sealing ball 213 seals and connects with the sealing seat 214. A connecting rod groove is opened at the center of the lower end of the outer side of the sealing ball 213. Under the action of the rebound force of the sealing spring 212 and the weight of the sealing ball 213, the sealing ball 213 seals and connects with the sealing seat 214 without the action of grout pressure, so as to realize segmented grouting within the preset pressure range.

[0035] The splitting block 206 has a pointed structure at the lower end and the rotation axis is located at the upper end. The upper end of the inner side of the splitting groove 204, away from the center of the grouting pipe 201, is fixedly connected to a limit stop 205.

[0036] A set of connecting rod grooves is also provided on the side of the splitting block 206 away from the center of the grouting pipe 201. A set of connecting rods 209 are fixedly connected to the inner side of the two sets of connecting rod grooves in a rotating structure. When the sealing ball 213 moves up and disengages from the sealing seat 214, it drives the connecting rods 209 to pull the splitting block 206 to rotate.

[0037] Specifically, the anti-buoyancy anchor 100 and the grouting assembly 200 are pre-assembled, allowing the grouting assembly 200 to follow the anti-buoyancy anchor 100 into a pre-drilled hole. Cement grout is guided to the bottom of the hole through the grouting pipe 201 and then filled in sections by several segmented plates 202. During the sectioned filling, the grout is injected, compacted, and the pressure is gradually increased. When the cement grout pressure reaches a preset value (usually 1.5-3.0 MPa), the sealing ball 213 is pushed upwards and disengaged from the sealing seat 21. 4. Sealing and connecting allows cement grout to flow upward through the through hole. Then, as the sealing ball 213 moves upward, it pulls the splitting block 206 to rotate via the connecting rod 209. This causes the pointed part at the lower end of the splitting block 206 to split the inner wall of the hole, and the grout fills the splitting crack. The grout no longer simply flows upward in a ring along the hole wall, but forms a multi-point, radial, vein-like grouting network with each "split-type" unit as the source. The grout is squeezed, penetrated and splits the surrounding medium under pressure, thereby improving the anchoring effect.

[0038] Please see Figure 1 and Figures 3-5 As a second embodiment of this utility model:

[0039] An inner sealing groove 207 is provided on the inner side of the grouting pipe 201 around the periphery of each set of splitting grooves 204. A sealing metal spring 208 is fixedly connected to the inner side of the inner sealing groove 207 via a rotating torsion spring. A sealing gasket is fixedly connected to the side of the sealing metal spring 208 near the splitting block 206. During the non-grouting stage, the splitting groove 204 is sealed at the inner end by the sealing metal spring 208, which also reduces grout backflow.

[0040] Based on the first embodiment described above, further, during the non-grouting stage, the split groove 204 is located at the inner end of the sealing metal spring 208 and rotates under the action of the rotary torsion spring, so that the sealing metal spring 208 and the inner sealing groove 207 are sealed and fitted together, and the grout backflow is reduced under the sealing and blocking, thereby assisting the grouting use.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Anti-buoyancy anchor bolt splitting type grouting device, including: An anti-buoyancy anchor (100) is characterized in that: the anti-buoyancy anchor (100) includes an anchor main rod (102), and the anchor main rod (102) is provided with three groups evenly distributed in a circle; A grouting assembly (200) is installed on the outside of the anchor rod (102). The grouting assembly (200) includes a grouting pipe (201), a segmented plate (202), a splitting groove (204), a splitting block (206), a sealing ball (213), and a sealing seat (214). Several segments of the segmented plate (202) are fixedly connected to the outside of the grouting pipe (201). The outer side of the grouting pipe (201) is provided with three sets of circumferentially distributed splitting grooves (204) corresponding to the lower part of each segment plate (202). The splitting groove (204) is fixedly connected to the splitting block (206) in a rotating structure. The upper surface of the segment plate (202) is vertically penetrated to form three sets of through holes. The lower end of the inner side of the through holes is fixedly connected to a sealing seat (214). A sealing ball (213) is provided above the sealing seat (214).

2. The anti-buoyancy anchor bolt splitting type grouting device as described in claim 1, characterized in that: Anchor base (101) is fixedly connected below the anchor rod (102), and three sets of positioning holes (203) are formed vertically through the upper surface of the segment plate (202) in a circumferentially evenly distributed manner.

3. The anti-buoyancy anchor bolt splitting type grouting device as described in claim 2, characterized in that: The anchor rod (102) is installed through the positioning hole (203), and a set of bosses (210) are fixedly connected to each set of through holes on the upper surface of the segment plate (202).

4. The anti-buoyancy anchor bolt splitting type grouting device as described in claim 3, characterized in that: A spring seat (211) is fixedly connected to the upper inner side of the protrusion (210), and a sealing spring (212) is fixedly connected to the lower part of the spring seat (211). The lower end of the sealing spring (212) is fixedly connected to the sealing ball (213).

5. The anti-buoyancy anchor bolt splitting type grouting device as described in claim 1, characterized in that: The sealing ball (213) is sealed and connected with the sealing seat (214) under the action of the rebound force of the sealing spring (212) and the weight of the sealing ball (213). A connecting rod groove is provided at the center of the lower end of the outer side of the sealing ball (213).

6. The anti-buoyancy anchor bolt splitting type grouting device as described in claim 1, characterized in that: The splitting block (206) has a pointed structure at the lower end and the rotation axis is located at the upper end. The upper end of the inner side of the splitting groove (204) away from the center of the grouting pipe (201) is fixedly connected to a limit stop (205).

7. The anti-buoyancy anchor bolt splitting type grouting device as described in claim 6, characterized in that: The splitting block (206) also has a set of connecting rod grooves on the side away from the center of the grouting pipe (201), and a set of connecting rods (209) are fixedly connected to the inner side of the two sets of connecting rod grooves in a rotating structure.

8. The anti-buoyancy anchor bolt splitting type grouting device as described in claim 7, characterized in that: The inner side of the grouting pipe (201) is provided with a set of inner sealing grooves (207) around each set of splitting grooves (204). The inner side of the inner sealing groove (207) is fixedly connected to a sealing metal spring (208) in a rotating structure via a rotary torsion spring. A sealing gasket is fixedly connected to the side of the sealing metal spring (208) near the splitting block (206).

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