Anti-sliding anchor rod for slope construction support

Abstract

The utility model relates to the technical field of anchor rod, and disclose a kind of anti-slide anchor rod for slope construction support, the middle part of column sleeve is sequentially surrounded by a group of upper tightening corner blocks and lower tightening corner blocks from top to bottom, a plurality of tightening grooves are opened around the upper tightening corner block and the lower tightening corner block of column sleeve, upper corner ring block and lower corner ring block are respectively arranged on the inner wall of the upper and lower sides of fixed sleeve, and compression spring is welded at the corresponding inclined surface of upper corner ring block and lower corner ring block and adjacent upper tightening corner block and lower tightening corner block.The utility model is provided with fixed sleeve, tightening corner block and compression spring, and upper tightening corner block and lower tightening corner block cooperate with tightening groove and can deform under stress, the elastic feedback of fixed sleeve and compression spring can adaptively adjust tightening degree according to the size of slope sliding force, adapt to slope working conditions of different sliding degree, combined with the elastic buffer of compression spring, reduce the abrasion of component due to rigid impact, prolong service life.

Description

Technical Field

[0001] This utility model relates to the field of anchor technology, specifically to an anti-sliding anchor for slope construction support. Background Technology

[0002] As a key component of the slope support system, the anchor rod is anchored at one end to the deep stable strata (rock or soil) of the slope, and the other end is connected to the surface support structure (such as lattice beams, anchor cable frames, retaining walls, etc.). By utilizing the tensile strength and anchoring force of the rod, the sliding force of the unstable rock and soil on the surface of the slope is transferred to the deep stable structure, thereby inhibiting the displacement of the rock and soil and improving the overall stability of the slope.

[0003] Application number CN202321831711.4 discloses an anchor-type anti-slide pile, belonging to the field of slope stabilization technology. It includes an anchor hole and an anchor body. The anchor hole is drilled in the landslide, and the anchor body is installed inside the anchor hole. An upper sleeve and a lower sleeve are fitted onto the outer side of the anchor body. The lower sleeve is buried in the landslide bed, and the upper sleeve is buried within the landslide body and protrudes from the ground surface. The anchor body has a first cone and a second cone at the bottom ends of the upper and lower sleeves, respectively. The technical solution of this application has a simple structure, can quickly reinforce slopes, and reduces construction time and cost.

[0004] The anchor body of the anti-slide pile is reinforced by an upper sleeve, a lower sleeve, and fixed first and second cones. The whole structure is a rigid connection structure. During the slope sliding process, the magnitude, direction and point of application of the sliding force often change dynamically with geological conditions (such as rainfall and soil loosening). The rigid sleeve and cones cannot adjust the anchoring force or stress posture according to the real-time changes of the sliding force. For example, when the slope experiences local uneven sliding, the fixed cones and sleeves are difficult to adaptively adjust the contact pressure, which can easily lead to some areas being overloaded and loosening, and some areas being understressed and failing. The anti-slide stability has poor adaptability to dynamic sliding. Utility Model Content

[0005] The purpose of this utility model is to provide an anti-slip anchor rod for slope construction support, which solves the problem of lack of dynamic adjustment capability and difficulty in adapting to the uncertainty of slope sliding.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to an anti-slip anchor rod for slope construction support, comprising an anchor rod and a positioning pile. The anchor rod is installed on the inner walls of both ends of the positioning pile. The positioning pile includes a column sleeve. A set of upper tightening corner blocks and lower tightening corner blocks are arranged around the middle pile body of the column sleeve from top to bottom. Several tightening grooves are formed around the upper and lower tightening corner blocks of the column sleeve. A fixing sleeve is fitted outside the upper and lower tightening corner blocks of the column sleeve. Upper and lower corner ring blocks and lower corner ring blocks are respectively provided on the inner walls of the upper and lower sides of the fixing sleeve. Compression springs are welded to the corresponding inclined surfaces of the upper and lower corner ring blocks and adjacent upper and lower tightening corner blocks.

[0007] The purpose of this design is that, during the use of this structure, the anchor rods are installed on the inner walls of both ends of the positioning pile, and the column sleeve of the positioning pile is the core support structure. The upper tightening corner blocks and the lower tightening corner blocks distributed around the middle pile body from top to bottom form an initial contact with the middle end of the screw rod through their own corners. The tightening grooves opened around the corner blocks of the column sleeve provide deformation space for the corner blocks, so that they can shrink inward with the force. When the slope shows a tendency to slide, the bolt of the anchor is subjected to lateral thrust, which pushes the upper and lower tightening corner blocks to expand slightly outward. At this time, the fixed sleeve fitted outside the column sleeve forms a close fit with the inclined surface of the corner block through the upper and lower corner ring blocks on the inner wall. The upper corner ring block corresponds to the inclined surface of the upper tightening corner block, and the lower corner ring block corresponds to the inclined surface of the lower tightening corner block. The compression spring welded to the contact surface of the two is compressed due to the outward expansion of the corner block, releasing the elastic reaction force. The spring force pushes the fixed sleeve to move along the column sleeve axis. At the same time, the angled ring block squeezes the inclined surface of the angled block, forcing the upper and lower tightening angled blocks to contract inward along the tightening groove, further clamping the middle end of the screw rod. This dynamic response of "force-deformation-elasticity feedback-tightening" makes the connection strength between the column sleeve and the screw rod increase with the increase of the slope sliding force. Finally, through the synergistic effect of the anchor rod and the positioning pile, the slope sliding tendency is offset, and anti-sliding support is achieved. The upper and lower tightening corner blocks, together with the tightening groove, can deform under force. The elastic feedback of the fixed sleeve and the compression spring can adaptively adjust the tightening force according to the magnitude of the slope sliding force, adapting to slope conditions with different degrees of sliding. The fixed sleeve is set around the column sleeve, and full-circumferential tightening is achieved through the upper and lower corner blocks. Combined with the elastic buffer of the compression spring, it reduces the wear of components caused by rigid collisions and extends service life.

[0008] Furthermore, the top of the column sleeve is provided with a flange ring, and the bottom surface of the flange ring is provided with inlay blocks on both sides.

[0009] The purpose of this design is that, during the use of this structure, the flange ring at the top of the column sleeve is a ring-shaped flat plate structure, which is used to connect with the support frame or prefabricated components of the slope surface through bolts, transferring the force of the positioning pile to the external stable structure of the slope. The inlay blocks on both sides of the bottom surface of the flange ring are wedge-shaped, which are embedded into the grooves of the slope surface soil or prefabricated holes during installation. Through mechanical interlocking, the connection friction between the flange ring and the slope is enhanced, preventing the positioning pile from rotating or translating when subjected to lateral sliding force, and providing a stable top anchoring support for the overall anti-sliding structure.

[0010] Furthermore, a rust-proof ring is fixedly provided on the top surface of the column sleeve, and a screw is threadedly connected to the inner wall of the rust-proof ring.

[0011] The purpose of this design is that, during the use of this structure, the anti-rust ring fixed on the top surface of the sleeve is a metal ring with internal threads machined on its inner wall, which precisely meshes with the external threads of the screw. Its core function is to isolate the top connection gap between the screw and the sleeve, preventing rainwater, mud and other corrosive media from entering the threaded mating surface, thus avoiding the threads from jamming or weakening due to rust. At the same time, the threaded connection ensures the axial positioning accuracy of the screw and the sleeve, ensuring that the upper and lower tightening corner blocks can stably abut against the preset position of the screw.

[0012] Furthermore, the top of the screw is provided with an anchor head, and the anti-rust ring is located in the middle of the connection between the anchor head and the anchor head.

[0013] The purpose of this design is that, during the use of this structure, the anti-rust ring is located in the middle of the connection between the anchor head and the column sleeve. This not only separates the metal contact surfaces of the anchor head and the column sleeve, reducing the risk of electrochemical corrosion, but also evenly transmits the anchoring force of the anchor head to the column sleeve through the threaded connection, preventing breakage due to stress concentration at the connection.

[0014] Furthermore, the bottom end of the sleeve is provided with a rubber ring, and the bottom end of the screw extends downward to the rubber ring.

[0015] The purpose of this design is that, during the use of this structure, the rubber ring at the bottom of the column sleeve is an elastic annular component that tightly fits onto the outer wall of the extension section at the bottom of the screw. Its function is to seal the bottom opening of the column sleeve, preventing mud, sand, and groundwater from the bottom of the slope from entering the interior of the column sleeve, and preventing the bottom of the screw and the lower tightening corner block from failing due to the accumulation of impurities or corrosion. At the same time, the elasticity of the rubber ring can buffer the axial impact of the bottom of the screw when it is under force, protecting the structural integrity of the bottom of the screw.

[0016] Furthermore, the inwardly bent corner blocks of the upper and lower tightening corner blocks respectively abut against the middle end of the screw rod.

[0017] The purpose of this design is that, during the use of this structure, the inwardly folding blocks of the upper and lower tightening corner blocks are wedge-shaped protrusions that fit tightly against the outer wall of the middle end of the screw, forming multiple contact fulcrums. When the screw is subjected to lateral displacement due to the slope sliding force, the folding surface of the corner block generates friction with the outer wall of the screw. At the same time, the corner block expands slightly outward due to the force, triggering the tightening feedback of the fixing sleeve and compression spring. This contact relationship ensures that the sliding force can be efficiently converted into the deformation force of the corner block, providing the initial triggering condition for the dynamic response of "force-tightening" and enhancing the force transmission efficiency of the overall anti-slip structure.

[0018] This utility model has the following beneficial effects: (1) This utility model, through the setting of a fixed sleeve, a tightening corner block and a compression spring, the upper tightening corner block and the lower tightening corner block, together with the tightening groove, can deform with force. The elastic feedback of the fixed sleeve and the compression spring can adaptively adjust the tightening force according to the magnitude of the slope sliding force, adapting to slope working conditions with different degrees of sliding. Combined with the elastic buffer of the compression spring, it reduces the wear of the parts caused by rigid collision and extends the service life.

[0019] (2) By setting the rubber ring, the rubber ring at the bottom of the column sleeve is an elastic ring that is tightly fitted on the outer wall of the extension section at the bottom of the screw. Its function is to seal the bottom opening of the column sleeve, prevent the mud and sand and groundwater at the bottom of the slope from entering the inside of the column sleeve, and prevent the bottom of the screw and the lower tightening corner block from failing due to the accumulation of impurities or corrosion. At the same time, the elasticity of the rubber ring can buffer the axial impact of the bottom of the screw when it is under force, and protect the structural integrity of the bottom of the screw.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0022] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a schematic diagram of the main structure of the positioning pile of this utility model; Figure 3 This is a schematic diagram of the internal structure of the positioning pile of this utility model in cross section; Figure 4 This is a partial cross-sectional structural diagram of the present invention; Figure 5 This is a schematic diagram of the internal structure of the present invention in plan view and cross section; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Anchor bolt; 101. Anchor head; 102. Screw; 2. Positioning pile; 201. Column sleeve; 202. Upper tightening corner block; 203. Lower tightening corner block; 204. Rubber ring; 205. Flange ring; 206. Rust-proof ring; 207. Fixing sleeve; 208. Upper corner ring block; 209. Lower corner ring block; 210. Compression spring; 211. Inlay block; 212. Tightening groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0024] Please see Figures 1-5 As shown, this utility model is an anti-slip anchor for slope construction support, including an anchor 1 and a positioning pile 2. The anchor 1 is installed on the inner walls of both ends of the positioning pile 2. The positioning pile 2 includes a column sleeve 201. A set of upper tightening corner blocks 202 and lower tightening corner blocks 203 are arranged around the middle pile body of the column sleeve 201 from top to bottom. Several openings are formed around the upper tightening corner blocks 202 and lower tightening corner blocks 203 of the column sleeve 201. A fixing sleeve 207 is fitted outside the upper tightening corner block 202 and lower tightening corner block 203 of the tightening groove 212 and the column sleeve 201. An upper corner ring block 208 and a lower corner ring block 209 are respectively provided on the inner walls of the upper and lower sides of the fixing sleeve 207. A compression spring 210 is welded to the corresponding inclined surface of the upper corner ring block 208 and the lower corner ring block 209 and the adjacent upper tightening corner block 202 and lower tightening corner block 203.

[0025] The purpose of this arrangement is that, during the use of this structure, the anchor rod 1 is installed on the inner walls of both ends of the positioning pile 2, and the column sleeve 201 of the positioning pile 2 is the core support structure. The upper tightening corner block 202 and the lower tightening corner block 203 distributed around the middle pile body from top to bottom form an initial contact with the middle rod body of the screw rod 102 through their own corners. The tightening groove 212 opened around the corner block of the column sleeve 201 provides deformation space for the corner block, so that it can shrink inward with force. When the slope shows a tendency to slide, the screw 102 of the anchor rod 1 is subjected to lateral thrust, which pushes the upper tightening corner block 202 and the lower tightening corner block 203 to expand slightly outward. At this time, the fixed sleeve 207, which is sleeved outside the column sleeve 201, forms a close fit with the inclined surface of the corner block through the upper corner ring block 208 and the lower corner ring block 209 on the inner wall. The upper corner ring block 208 corresponds to the inclined surface of the upper tightening corner block 202, and the lower corner ring block 209 corresponds to the inclined surface of the lower tightening corner block 203. The compression spring 210 welded to the contact surface of the two is compressed due to the outward expansion of the corner block, releasing the elastic reaction force. The elastic force of the compression spring 210 pushes the fixed sleeve 207 to move axially along the column sleeve 201. At the same time, the angled ring block squeezes the inclined surface of the angled block, forcing the upper tightening angled block 202 and the lower tightening angled block 203 to contract inward along the tightening groove 212, further clamping the middle end of the screw 102. This dynamic response of "force-deformation-elasticity feedback-tightening" makes the connection strength between the column sleeve 201 and the screw 102 increase with the increase of the slope sliding force. Finally, through the synergistic effect of the anchor rod 1 and the positioning pile 2, the slope sliding tendency is offset, and anti-sliding support is achieved. The upper tightening corner block 202 and the lower tightening corner block 203, together with the tightening groove 212, can deform under force. The elastic feedback of the fixed sleeve 207 and the compression spring 210 can adaptively adjust the tightening force according to the magnitude of the slope sliding force, adapting to slope conditions with different degrees of sliding. The fixed sleeve 207 is set around the column sleeve 201, and the upper and lower corner blocks achieve full circumferential tightening. Combined with the elastic buffer of the compression spring 210, it reduces the wear of components caused by rigid collision and extends service life.

[0026] The top of the column sleeve 201 is provided with a flange ring 205, and the bottom surface of the flange ring 205 is provided with inlay blocks 211 on both sides.

[0027] The purpose of this design is that, during the use of this structure, the flange ring 205 at the top of the column sleeve 201 is an annular flat plate structure, which is used to connect with the support frame or prefabricated components of the slope surface through bolts, so as to transfer the force of the positioning pile 2 to the external stable structure of the slope. The inlay blocks 211 on both sides of the bottom surface of the flange ring 205 are wedge-shaped and are embedded into the grooves of the slope surface soil or prefabricated holes during installation. The mechanical interlocking enhances the connection friction between the flange ring 205 and the slope, preventing the positioning pile 2 from rotating or translating when subjected to lateral sliding force, and providing a stable top anchoring support for the overall anti-sliding structure.

[0028] A rust-proof ring 206 is fixedly provided on the top surface of the column sleeve 201, and a screw 102 is threadedly connected to the inner wall of the rust-proof ring 206.

[0029] The purpose of this design is that, during the use of this structure, the anti-rust ring 206 fixed on the top surface of the sleeve 201 is a metal ring with internal threads machined on its inner wall, which precisely meshes with the external threads of the screw 102. Its core function is to isolate the top connection gap between the screw 102 and the sleeve 201, preventing rainwater, mud and other corrosive media from entering the threaded mating surface, avoiding thread jamming or strength reduction due to rust. At the same time, the threaded connection ensures the axial positioning accuracy of the screw 102 and the sleeve 201, ensuring that the upper tightening corner block 202 and the lower tightening corner block 203 can stably abut against the preset position of the screw 102.

[0030] The top of the screw 102 is provided with an anchor head 101, and the anti-rust ring 206 is located in the middle of the connection between the anchor head 101 and the anchor head 101.

[0031] The purpose of this design is that, during the use of this structure, the anti-rust ring 206 is located in the middle of the connection between the anchor head 101 and the column sleeve 201, which not only separates the metal contact surfaces of the anchor head 101 and the column sleeve 201 to reduce the risk of electrochemical corrosion, but also transmits the anchoring force of the anchor head 101 evenly to the column sleeve 201 through the threaded connection, thus avoiding breakage due to stress concentration at the connection.

[0032] The bottom end of the sleeve 201 is provided with a rubber ring 204, and the bottom end of the screw 102 extends downward to the rubber ring 204.

[0033] The purpose of this design is that, during the use of this structure, the rubber ring 204 at the bottom of the column sleeve 201 is an elastic annular component that tightly fits onto the outer wall of the extension section at the bottom of the screw 102. Its function is to seal the bottom opening of the column sleeve 201, preventing mud, sand, and groundwater from the bottom of the slope from entering the interior of the column sleeve 201, and preventing the bottom of the screw 102 and the lower tightening corner block 203 from failing due to the accumulation of impurities or corrosion. At the same time, the elasticity of the rubber ring 204 can buffer the axial impact of the bottom of the screw 102 when it is under force, protecting the structural integrity of the bottom of the screw 102.

[0034] The inward-folding corner blocks of the upper tightening corner block 202 and the lower tightening corner block 203 respectively abut against the middle end of the screw 102.

[0035] The purpose of this design is that, during the use of this structure, the inwardly folded corner blocks of the upper tightening corner block 202 and the lower tightening corner block 203 are wedge-shaped protrusions that fit tightly against the outer wall of the middle end of the screw 102, forming a multi-point contact fulcrum. When the screw 102 is subjected to the sliding force of the slope and undergoes lateral displacement, the folded surface of the corner block generates friction with the outer wall of the screw 102. At the same time, the corner block expands slightly outward due to the force, triggering the tightening feedback of the fixed sleeve 207 and the compression spring 210. This contact relationship ensures that the sliding force can be efficiently converted into the deformation force of the corner block, providing the initial triggering condition for the dynamic response of "force-tightening" and enhancing the force transmission efficiency of the overall anti-slip structure.

[0036] When in use, the installation and workflow of this anti-slip anchor revolves around "deep anchoring - surface fixing - dynamic anti-slip": First, the anchor head 101 of the anchor rod 1 is implanted into the deep stable stratum of the slope. The root anchoring is achieved through the mechanical interlocking of the anchor head 101. The screw rod 102 extends along the axis, and the top end is assembled with the column sleeve 201 of the positioning pile 2 through the threaded connection of the anti-rust ring 206. The anti-rust ring 206 isolates the corrosive medium and ensures the stability of the threaded connection. The positioning pile 2 is fixed by the flange ring 205 at the top of the column sleeve 201: the flange ring 205 is bolted to the slope surface support structure, the bottom inlay block 211 is embedded in the soil to form a top fixed support point, and the rubber ring 204 at the bottom of the column sleeve 201 seals the bottom to prevent impurities from entering the interior. When the slope tends to slide, the sliding force is transmitted to the anchor head 101, which drives the screw 102 to bear the lateral thrust. At this time, the upper tightening corner block 202 and the lower tightening corner block 203 in the middle of the column sleeve 201 abut against the middle end of the screw 102 and expand slightly outward with the displacement of the screw 102. The tightening groove 212 provides deformation space for it. The upper and lower corner ring blocks 208 and 209 of the outer fixing sleeve 207 fit with the inclined surface of the corner block. The welded compression spring 210 is compressed and generates elastic force, which pushes the fixing sleeve 207 to squeeze the corner block, forcing both to contract inward along the tightening groove 212 and clamp the screw 102. This dynamic tightening process increases the connection strength between the column sleeve 201 and the screw 102 as the sliding force increases. Ultimately, through the deep anchoring of the anchor head 101, the surface fixing of the flange ring 205, and the coordinated tightening of the corner block and the fixing sleeve, a complete anti-sliding force transmission path is formed, effectively preventing slope sliding.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-slide anchor for slope construction support, comprising an anchor (1) and a positioning pile (2), characterized in that: The anchor rod (1) is installed on the inner walls of both ends of the positioning pile (2). The positioning pile (2) includes a column sleeve (201). A set of upper tightening corner blocks (202) and lower tightening corner blocks (203) are arranged around the middle pile body of the column sleeve (201) from top to bottom. Several tightening grooves (212) are opened around the upper tightening corner blocks (202) and lower tightening corner blocks (203) of the column sleeve (201). A fixing sleeve (207) is fitted on the outside of the upper tightening corner block (202) and the lower tightening corner block (203). An upper corner ring block (208) and a lower corner ring block (209) are respectively provided on the upper and lower inner walls of the fixing sleeve (207). A compression spring (210) is welded to the corresponding inclined surface of the upper corner ring block (208) and the lower corner ring block (209) and the adjacent upper tightening corner block (202) and lower tightening corner block (203).

2. The anti-slide anchor for slope construction support according to claim 1, characterized in that: The top of the column sleeve (201) is provided with a flange ring (205), and the bottom surfaces of the flange ring (205) are provided with inlay blocks (211).

3. The anti-slide anchor bolt for slope construction support according to claim 1, characterized in that: The top surface of the sleeve (201) is fixedly provided with a rust-proof ring (206), and a screw (102) is threadedly connected to the inner wall of the rust-proof ring (206).

4. The anti-slide anchor for slope construction support according to claim 3, characterized in that: The top of the screw (102) is provided with an anchor head (101), and the anti-rust ring (206) is located in the middle of the connection between the anchor head (101) and the anchor head (101).

5. The anti-slide anchor bolt for slope construction support according to claim 3, characterized in that: The bottom end of the sleeve (201) is provided with a rubber ring (204), and the bottom end of the screw (102) extends downward to the rubber ring (204).

6. The anti-slide anchor for slope construction support according to claim 1, characterized in that: The inward-folding corner blocks of the upper tightening corner block (202) and the lower tightening corner block (203) respectively abut against the middle end of the screw (102).

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