Anti-floating anchor rod reinforcing structure and anti-floating anchor rod

Abstract

The invention relates to the technical field of fixed anchor rods, in particular to an anti-floating anchor rod reinforcing structure and an anti-floating anchor rod. The anti-floating anchor rod reinforcing structure comprises a hollow anchor rod body and a plurality of fixed anchor rod bodies, the hollow anchor rod body comprises an upper anchor rod and a lower anchor rod, a balance weight anchor head is fixedly installed at the bottom end of the lower anchor rod, and a containing groove is formed in the inner side of the balance weight anchor head; one end of the counterweight anchor head is hinged to an extension assembly capable of being synchronously pushed outwards, and the extension assembly comprises a synchronous connecting block used for controlling the extension assembly to be unfolded and stored. Through the arrangement of the counterweight anchor head and the adjusting sliding block, after the hollow anchor rod body reaches a designated position, the guide hole and the limiting column form insertion connection, the multiple fixed anchor rod bodies and the lower anchor rod are connected into a whole through the counterweight anchor head, the overall collaboration of the anchor rod group is enhanced, and the situation that a single anchor rod fails due to excessive stretching is avoided; and the ejection rod extends outwards into the foundation pit, the overturning block and the ejection sliding block are in a locked state, and the overall stability and the anti-floating capacity are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fixed anchor rods, and particularly relates to an anti-floating anchor rod strengthening structure and an anti-floating anchor rod. Background Art

[0002] An anti-floating anchor rod is a structural member that resists the buoyancy of groundwater by being anchored in a stable rock and soil layer and utilizing the friction or adhesion between the anchor rod and the rock and soil mass. It is widely used in various underground projects and is applicable to various strata such as sandy soil, clay, and rock strata, with strong adaptability.

[0003] In an anti-floating anchor rod, the inside of the hollow anchor rod body is a cavity, which is used as a grouting channel to grout from the bottom of the foundation pit to improve the anchoring effect. Multiple anchor rods are also required in the anti-floating anchor rod to disperse the load, avoid stress concentration, optimize the anchoring form, and enhance the overall stability. Before grouting in the foundation pit, the ungrouted anchor rods may move due to the buoyancy force, affecting the subsequent grouting and the stability of the overall structure. For example, they may float up from the drill hole due to the buoyancy force, resulting in positioning deviation or deviation from the designed position, leading to insufficient actual anchoring length of the anchor rod and reduced pull-out resistance.

[0004] Therefore, it is very necessary to invent an anti-floating anchor rod strengthening structure and an anti-floating anchor rod to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an anti-floating anchor rod strengthening structure and an anti-floating anchor rod, and by optimizing the setting of the counterweight anchor head structure, the position of the anchor rod is optimized, the positioning deviation is reduced, and the stability of the overall structure before grouting is improved.

[0006] To achieve this purpose, the present invention adopts the following technical solutions: Provide an anti-floating anchor rod strengthening structure, including a hollow anchor rod body and a plurality of fixed anchor rod bodies. The hollow anchor rod body includes an upper anchor rod and a lower anchor rod. A counterweight anchor head is fixedly installed at the bottom end of the lower anchor rod. A receiving groove is formed inside the counterweight anchor head. One end of the counterweight anchor head is hinged with an extension assembly that can be synchronously pushed outwards. The extension assembly includes a synchronous connection block for controlling its deployment and storage. An adjustment slider is sleeved outside the lower anchor rod and slides along its length direction. One end of the adjustment slider is slidably connected to the synchronous connection block.

[0007] As a preferred solution of an anti-floating anchor rod strengthening structure, a guiding groove is formed on the outer side surface of the counterweight anchor head. One side of the adjustment slider corresponding to the guiding groove extends outwards and is provided with a guiding hole. A limiting column is fixedly installed on the outer side of each of the plurality of fixed anchor rod bodies. The limiting column corresponds to the guiding hole and is used to drive the adjustment slider to slide.

[0008] As a preferred solution of an anti-floating anchor rod strengthening structure, the extension assembly further includes a flipping block, an ejecting slider, and a straightening spring. One end of the flipping block is hinged to the inner side of the counterweight anchor head through a second hinge shaft. The other end of the flipping block is hinged to the synchronous connection block. The other end of the synchronous connection block is hinged to the ejecting slider. Both ends of the straightening spring are fixedly installed on the inner sides of the flipping block and the ejecting slider respectively. When the extension assembly is in a contracted state, the straightening spring is in a contracted state; when the extension assembly is in an extended state, the straightening spring is tightened to make the flipping block, the synchronous connection block, and the ejecting slider all in a horizontal state.

[0009] As a preferred solution of an anti-floating anchor rod strengthening structure, a flipping guide rail is sleeved outside the ejecting slider. A chute is opened on the inner side of the flipping guide rail. One end of the ejecting slider is located and slides in the chute. One end face of the flipping guide rail is fixedly connected with a kidney-shaped slider. One end of the counterweight anchor head is fixedly connected with a plurality of first hinge shafts that slide inside the kidney-shaped slider.

[0010] As a preferred solution of an anti-floating anchor rod strengthening structure, one end of the ejecting slider is fixedly connected with an ejecting rod for outward extension. When the extension assembly is in an extended state, one end of the ejecting rod extends to the outside of the ejecting slider.

[0011] As a preferred solution of an anti-floating anchor rod strengthening structure, an extension arm is arranged at the bottom end of the synchronous connection block. A guiding slider is arranged at the end of the extension arm. A plurality of limiting chutes for the guiding slider to slide are arranged at one end of the adjusting slider facing the counterweight anchor head.

[0012] Provided is an anti-floating anchor rod, including an upper anchor rod and a lower anchor rod. The upper anchor rod and the lower anchor rod are detachably connected through a shaft sleeve. Both the upper anchor rod and the lower anchor rod are hollow, and a grouting pipeline is used to pass through their interiors.

[0013] As a preferred solution of an anti-floating anchor rod, the shaft sleeve is sleeved at the bottom end outside the upper anchor rod. A plurality of clamping blocks are arranged on the inner side of the shaft sleeve. A plurality of clamping grooves adapted to the clamping blocks are opened at the top end of the lower anchor rod.

[0014] Advantages of the present invention: Through the setting of the counterweight anchor head and the adjusting slider, after the hollow anchor rod body reaches the designated position, the guide hole in the adjusting slider and the limit post in the remaining fixed anchor rod bodies form an insertion connection. Multiple fixed anchor rod bodies and the lower anchor rod are connected as a whole through the counterweight anchor head, enhancing the overall coordination of the anchor rod group and avoiding the failure of a single anchor rod due to excessive stretching. When the extension assembly is deployed, the ejector rod extends outward into the interior of the foundation pit, and the flipping block and the ejecting slider are in a locked state, improving the overall stability and anti-floating ability; when the extension assembly is in the deployed state, the setting of the straightening spring makes the flipping block and the ejecting slider in a taut state. The flipping block and the ejecting slider are in a horizontal state, and the ejecting slider slides outward, synchronously driving the ejector rod to extend outward, so that the ejector rod is inserted into the interior of the foundation pit soil to fix the lower anchor rod. While fixing the lower anchor rod, the lower anchor rod synchronously connects multiple fixed anchor rod bodies, improving the stability of the overall device. Brief Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments of the present invention. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the anti-floating anchor rod described in the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the counterweight anchor head described in the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the adjusting slider described in the present invention.

[0019] Figure 4 It is a schematic diagram of the internal structure of the bushing described in the present invention.

[0020] Figure 5 It is a schematic diagram of the connection relationship structure between the adjusting slider and the fixed anchor rod body described in the present invention.

[0021] Figure 6 It is a schematic diagram of the structure of the counterweight anchor head described in the present invention.

[0022] Figure 7 It is a schematic diagram of the structure of the guide groove and the guide hole described in the present invention.

[0023] Figure 8 It is a schematic diagram of the structure of the flipping block in the retracted state described in the present invention.

[0024] Figure 9 It is a schematic diagram of the structure of the flipping block in the deployed state described in the present invention.

[0025] In the figure: 1. Fixed anchor rod body; 101. Limit post; 2. Hollow anchor rod body; 201. Upper anchor rod; 202. Bush; 203. Lower anchor rod; 204. Block; 205. Card slot; 3. Counterweight anchor head; 301. Guide groove; 4. Adjusting slider; 401. Guide hole; 402. Limit sliding groove; 5. Extension component; 501. Flipping block; 502. Synchronous connecting block; 503. Ejecting slider; 504. Flipping guide rail; 505. Waist-shaped slider; 506. Hinge shaft I; 507. Ejecting rod; 508. Extension arm; 509. Guide slider; 510. Straightening spring; 511. Hinge shaft II. Detailed implementation manners

[0026] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation manners.

[0027] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical diagrams, and should not be construed as a limitation of this patent; in order to better illustrate the embodiments of the present invention, some components in the accompanying drawings will be omitted, enlarged or reduced, which does not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0028] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, if terms such as "connection" are used to indicate the connection relationship between components, this term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Refer to Figures 1 to 9, an example of the present invention provides an anti-floating anchor rod strengthening structure, including a hollow anchor rod body 2 and a plurality of fixed anchor rod bodies 1. The hollow anchor rod body 2 includes an upper anchor rod 201 and a lower anchor rod 203. A counterweight anchor head 3 is fixedly installed at the bottom end of the lower anchor rod 203. A receiving groove is formed inside the counterweight anchor head 3. One end of the counterweight anchor head 3 is hinged with an extension assembly 5 that can be synchronously pushed outwards. The extension assembly 5 includes a synchronous connection block 502 for controlling its deployment and accommodation. An adjustment slider 4 that slides along the length direction is sleeved outside the lower anchor rod 203. One end of the adjustment slider 4 is slidably connected to the synchronous connection block 502. The setting of the counterweight anchor head 3 can increase the overall weight of the hollow anchor rod body 2, facilitating installation into the foundation pit. The setting of the receiving groove inside the counterweight anchor head 3 enables the turning guide rail 504 and the ejecting rod 507 to contract within the range of the foundation pit aperture, reducing the volume occupied by the counterweight anchor head 3 in the contracted state. The ejecting slider 503 can be adapted accordingly according to the different foundation pit apertures to ensure that the extension assembly 5 can extend into the foundation pit after deployment.

[0031] A guiding groove 301 is formed on the outer side surface of the counterweight anchor head 3. One side of the adjustment slider 4 corresponding to the guiding groove 301 extends outwards and is provided with a guiding hole 401. A limiting column 101 is fixedly installed on the outer side of each of the plurality of fixed anchor rod bodies 1. The limiting column 101 corresponds to the guiding hole 401 and is used to drive the adjustment slider 4 to slide. The setting of the guiding groove 301 is used to ensure that during the downward sliding of the counterweight anchor head 3, the inclined end surface of the counterweight anchor head 3 interferes with the limiting column 101 provided on the fixed anchor rod body 1, reducing the difficulty of adapting the limiting column 101 to the guiding hole 401. The limiting columns 101 provided on the plurality of fixed anchor rod bodies 1 are in the same plane.

[0032] The extension assembly 5 further includes a flipping block 501, an ejecting slider 503, and a straightening spring 510. One end of the flipping block 501 is hinged to the inner side of the counterweight anchor head 3 through a second hinge shaft 511. The other end of the flipping block 501 is hinged to the synchronous connection block 502. The other end of the synchronous connection block 502 is hinged to the ejecting slider 503. Both ends of the straightening spring 510 are fixedly installed on the inner sides of the flipping block 501 and the ejecting slider 503 respectively. When the extension assembly 5 is in the contracted state, the straightening spring 510 is in the contracted state; when the extension assembly 5 is in the extended state, the straightening spring 510 is tightened to make the flipping block 501, the synchronous connection block 502, and the ejecting slider 503 all in the horizontal state. When the counterweight anchor head 3 reaches the designated position, the adjusting slider 4 comes into contact with the limit post 101. At this time, the hollow anchor rod body 2 continues to move downward, and the entire counterweight anchor head 3 moves downward, while the adjusting slider 4 remains in place. Under the action of the limit chute 402, the guiding slider 509 pulls the synchronous connection block 502, causing the extension assembly 5 to change from the contracted state to the deployed state. When in the deployed state, the setting of the straightening spring 510 makes the flipping block 501 and the ejecting slider 503 in a taut state. After the flipping block 501 and the ejecting slider 503 are in the horizontal state, the ejecting slider 503 slides outward, synchronously driving the ejecting rod 507 to extend outward, so that the ejecting rod 507 is inserted into the internal soil of the foundation pit to fix the lower anchor rod 203. While fixing the lower anchor rod 203, the lower anchor rod 203 is synchronously connected to a plurality of fixed anchor rod bodies 1 to improve the stability of the overall device.

[0033] A flipping guide rail 504 is sleeved on the outer side of the ejecting slider 503. A chute is opened on the inner side of the flipping guide rail 504. One end of the ejecting slider 503 is located in the chute and slides. One side end face of the flipping guide rail 504 is fixedly connected with a waist-shaped slider 505. One end of the counterweight anchor head 3 is fixedly connected with a plurality of first hinge shafts 506 that slide inside the waist-shaped slider 505. The end face of the flipping guide rail 504 can be provided with a conical surface for facilitating the breaking of soil, so as to facilitate the deployment of the flipping guide rail 504. The setting of the waist-shaped slider 505 increases the accommodation length of the flipping guide rail 504. When the extension assembly 5 is deployed, it optimizes the movement range of the flipping guide rail 504 and reduces the difficulty of pulling by the adjusting slider 4.

[0034] One end of the ejecting slider 503 is fixedly connected with an ejecting rod 507 for extending outward. When the extension assembly 5 is in the extended state, one end of the ejecting rod 507 extends to the outside of the ejecting slider 503. The end face of the ejecting rod 507 is a spherical surface, an arc surface, or a conical surface, which is used to reduce the difficulty of inserting the ejecting rod 507 into the internal soil of the foundation pit.

[0035] The bottom end of the synchronous connection block 502 is provided with an extension arm 508, and the end of the extension arm 508 is provided with a guiding slider 509. One end of the adjusting slider 4 facing the counterweight anchor head 3 is provided with a plurality of limiting sliding grooves 402 for the guiding slider 509 to slide. The bottom end of the extension arm 508 is offset inward to ensure that when the synchronous connection block 502 is in the unfolded state, the guiding slider 509 at the bottom end of the extension arm 508 is still inside the limiting sliding groove 402.

[0036] Provided is an anti-floating anchor rod, including an upper anchor rod 201 and a lower anchor rod 203. The upper anchor rod 201 and the lower anchor rod 203 are detachably connected through a bushing 202. Both the upper anchor rod 201 and the lower anchor rod 203 are hollow, and a grouting pipeline is used to pass through their interiors. A slider for guiding the adjusting slider 4 can be provided on the outer side of the lower anchor rod 203 to avoid the problem of its deviation, ensuring that the limiting column 101 can be inserted into the guiding groove 301 and the guiding hole 401, and ensuring that after reaching the designated position, the extension assembly 5 can be accurately pushed out.

[0037] The bushing 202 is sleeved on the bottom end of the outer side of the upper anchor rod 201. A plurality of clamping blocks 204 are arranged on the inner side of the bushing 202, and a plurality of clamping grooves 205 adapted to the clamping blocks 204 are opened at the top end of the lower anchor rod 203. When grouting is required, if the pressure grouting method is adopted, the upper anchor rod 201 can be rotated before grouting to separate the upper anchor rod 201 from the lower anchor rod 203. At this time, the upper anchor rod 201 is gradually pulled out during the grouting process, and the lower anchor rod 203 remains inside the foundation pit to position and limit the fixed anchor body 1. Observation blocks with the same positions as the limiting column 101 and the adjusting slider 4 can be arranged on the side of the fixed anchor body 1 and the upper anchor rod 201 exposed on the ground to simultaneously display the positional relationship between the limiting column 101 and the guiding hole 401 inside the foundation pit, improving the installation accuracy.

[0038] In the present invention, through the setting of the counterweight anchor head 3 and the adjusting slider 4, after the hollow anchor rod body 2 reaches the designated position, the guiding hole 401 in the adjusting slider 4 and the limiting column 101 in the remaining fixed anchor rod bodies 1 form an insertion connection. A plurality of fixed anchor rod bodies 1 and the lower anchor rod 203 are connected into a whole through the counterweight anchor head 3, enhancing the overall coordination of the anchor rod group and avoiding the failure of a single anchor rod due to excessive stretching. When the extension assembly 5 is unfolded, the ejecting rod 507 extends outward into the interior of the foundation pit, and the flipping block 501 and the ejecting slider 503 are in a locked state, improving the overall stability and anti-floating ability. When the extension assembly 5 is in the unfolded state, the setting of the straightening spring 510 causes the flipping block 501 and the ejecting slider 503 to be in a taut state. The flipping block 501 and the ejecting slider 503 are in a horizontal state, and the ejecting slider 503 slides outward, synchronously driving the ejecting rod 507 to extend outward, so that the ejecting rod 507 is inserted into the interior of the foundation pit soil to fix the lower anchor rod 203. While fixing the lower anchor rod 203, the lower anchor rod 203 synchronously connects a plurality of fixed anchor rod bodies 1, improving the stability of the overall device.

[0039] It should be noted that the above specific embodiments are only the preferred embodiments of the present invention and the applied technical principles. Those skilled in the art should understand that various modifications, equivalent replacements, changes, etc. can be made to the present invention. However, as long as these transformations do not deviate from the spirit of the present invention, they should be within the protection scope of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. An anti-floating anchor reinforcement structure, characterized in that: The invention comprises a hollow anchor rod body (2) and a plurality of fixed anchor rod bodies (1), wherein the hollow anchor rod body (2) comprises an upper anchor rod (201) and a lower anchor rod (203), a counterweight anchor head (3) is fixedly mounted on the bottom end of the lower anchor rod (203), a receiving groove is provided on the inner side of the counterweight anchor head (3), an extension component (5) capable of being pushed out synchronously is hingedly connected to one end of the counterweight anchor head (3), the extension component (5) comprises a synchronous connection block (502) for controlling its deployment and storage, an adjustment slider (4) is sleeved on the outer side of the lower anchor rod (203) and slides along its length direction, and the adjustment slider (4) is slidably connected to one end of the synchronous connection block (502).

2. The anti-floating anchor reinforcement structure and the anti-floating anchor according to claim 1, characterized in that: The outer side surface of the counterweight anchor head (3) is provided with a guide groove (301), and the side of the adjusting slider (4) corresponding to the guide groove (301) extends outward and is provided with a guide hole (401). The outer sides of the plurality of fixed anchor rod bodies (1) are fixedly mounted with a limiting column (101), the limiting column (101) corresponds to the guide hole (401) and is used to drive the adjusting slider (4) to slide.

3. The anti-floating anchor reinforcement structure and the anti-floating anchor according to claim 2 are characterized by: The extension assembly (5) further comprises a flip block (501), an ejection slider (503) and a straightening spring (510); one end of the flip block (501) is hinged to the inner side surface of the counterweight anchor head (3) via a second hinge shaft (511); the other end of the flip block (501) is hinged to the synchronous connection block (502); the other end of the synchronous connection block (502) is hinged to the ejection slider (503); two ends of the straightening spring (510) are respectively fixedly mounted on the inner sides of the flip block (501) and the ejection slider (503); when the extension assembly (5) is in a retracted state, the straightening spring (510) is in a retracted state; when the extension assembly (5) is in an extended state, the straightening spring (510) is tightened so that the flip block (501), the synchronous connection block (502) and the ejection slider (503) are all in a horizontal state.

4. The anti-floating anchor reinforcement structure and the anti-floating anchor according to claim 3 are characterized by: The outer side of the ejection slider (503) is sleeved with a turnover guide rail (504), the inner side of the turnover guide rail (504) is provided with a slide groove, one end of the ejection slider (503) is located in the slide groove for sliding, one side end surface of the turnover guide rail (504) is fixedly connected to a waist-shaped slider (505), and one end of the counterweight anchor head (3) is fixedly connected to a plurality of hinge shafts (506) located inside the waist-shaped slider (505) for sliding.

5. The anti-floating anchor reinforcement structure and the anti-floating anchor according to claim 3, characterized in that: One end of the ejection slider (503) is fixedly connected to an ejection rod (507) for extending outwards, and when the extension assembly (5) is in an extended state, one end of the ejection rod (507) extends to the outside of the ejection slider (503).

6. The anti-floating anchor reinforcement structure and the anti-floating anchor according to claim 3, characterized in that: An extension arm (508) is provided at the bottom end of the synchronous connection block (502), a guide slider (509) is provided at the end of the extension arm (508), and a plurality of limiting slide grooves (402) for the guide slider (509) to slide are provided at one end of the adjustment slider (4) facing the counterweight anchor head (3). 7.An anti-floating anchor, characterized in that: The invention comprises an upper anchor rod (201) and a lower anchor rod (203) according to any one of claims 1 to 6, wherein the upper anchor rod (201) and the lower anchor rod (203) are detachably connected via a shaft sleeve (202), and both the upper anchor rod (201) and the lower anchor rod (203) are hollow, and the interior thereof is used for passing a grouting pipe.

8. The anti-floating anchor rod according to claim 7, characterized in that: The shaft sleeve (202) is sleeved on the bottom end of the outer side of the upper anchor rod (201), a plurality of clamping blocks (204) are arranged on the inner side of the shaft sleeve (202), and a plurality of clamping grooves (205) adapted to the clamping blocks (204) are arranged on the top end of the lower anchor rod (203).

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