Multi-stage reinforcing device for slope support

Abstract

The invention discloses a slope support multi-stage reinforcing device, relates to the technical field of slope support, and aims to solve the technical problem that an existing slope anchor rod reinforcing device is insufficient in function, the slope support multi-stage reinforcing device comprises an inner penetrating shaft sleeve assembly, and the inner penetrating shaft sleeve assembly is of a telescopic structure; a first-stage hard meshing assembly is arranged in the inner penetrating shaft sleeve assembly in a penetrating mode. In addition, a second-stage jacking and unfolding mechanism is movably arranged on the first-stage hard occlusion assembly; a screw rod is rotationally arranged at the top of the first-stage hard occlusion assembly through a bearing; the second-stage jacking and unfolding mechanism is in threaded connection with the screw rod; the top of the screw rod is fixedly provided with a ribbed steel bar, the top of the ribbed steel bar is fixedly provided with a screw shaft, and the screw shaft is in threaded connection with a stress fastening block; the top of the inner penetrating shaft sleeve assembly is detachably connected with a stress connecting sleeve. The functionality of the reinforcing device is effectively improved based on the two operation modes.

Description

Technical Field

[0001] The present invention relates to the technical field of slope support, and more specifically to a multi-stage reinforcement device for slope support. Background Art

[0002] Slope anchor is a geotechnical engineering structure used to reinforce slopes. It mainly connects unstable slope rock and soil with stable strata through anchors, thereby improving the overall stability of the slope. In slope engineering, due to the influence of gravity, groundwater, earthquakes and other factors, the rock and soil may slide or collapse. The anchor system is like a "nail" to fix the rock and soil in place.

[0003] The slope anchors used in existing water conservancy projects are mostly connected and fixed by penetrating underground to cooperate with the protrusions or barbs on the anchors. The existing protrusions or barbs cannot be well adapted to the different underground geological layers of water flow projects. They are mostly connected through the same structure, and it is impossible to maintain good rigid contact with the hard layer while requiring multiple contact points. The contact area with the soil layer needs to be increased. Therefore, it is particularly important to propose a multi-stage reinforcement device with the function of interlocking connection with the hard layer in the slope of the water conservancy project and increasing the contact area with the soil layer. In view of this, we propose a multi-stage reinforcement device for slope support. Summary of the invention

[0004] The object of the present invention is to provide a multi-stage reinforcement device for slope support, so as to solve the technical problem that the existing slope anchor reinforcement device has insufficient functions.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a multi-stage reinforcement device for slope support, comprising an inner sleeve assembly, which is a telescopic structure; a first-level hard bite assembly is arranged inside the inner sleeve assembly; and a second-level top expansion mechanism is movably arranged on the first-level hard bite assembly; and a screw rod is rotatably arranged on the top of the first-level hard bite assembly through a bearing; the second-level top expansion mechanism is threadedly connected to the screw rod; and a ribbed steel bar is fixedly arranged on the top of the screw rod, and a screw shaft is fixedly arranged on the top of the ribbed steel bar, and a force-bearing fastening block is threadedly connected to the screw shaft; and a force-bearing connecting sleeve is detachably connected to the top of the inner sleeve assembly.

[0006] The present invention realizes a good rigid bite connection to the hard layer through a first-level hard bite component that can be unfolded on a first-level basis, thereby realizing the anchor connection of the underground layer of the water conservancy project as a rock-like hard layer during the anchor operation; and the second-level top expansion mechanism descends and unfolds to realize further force-extrusion and expansion of the first-level hard bite component, so that the movable bite end in the first-level hard bite component can be further inserted and connected to the soil layer outside the borehole, thereby improving the good effect of the contact surface, thereby realizing the anchor connection of the underground layer of the water conservancy project as a soil-like geological layer during the anchor operation; the first-level foundation is unfolded to adapt to the anchor connection of the hard layer, and the second-level unfolding is then used to adapt to the anchor connection of the soil layer. Based on the above-mentioned multi-stage operation, the functionality of the reinforcement device is effectively improved.

[0007] Preferably, the inner sleeve assembly includes a guide spiral head fixedly arranged below the primary hard bite assembly; a guide slide rail is fixedly arranged at the middle end of the top of the guide spiral head; an extension sleeve is arranged on the top of the guide slide rail; a plurality of axial limit protrusions are arranged in a ring shape with equal intervals on the side of the extension sleeve; a fixed limit guide cylinder shaft is arranged on the side of the top of the guide spiral head; and a movable limit guide cylinder shaft is arranged above the fixed limit guide cylinder shaft, and an axial limit slide groove that slides with the axial limit protrusion is arranged on the side of the movable limit guide cylinder shaft.

[0008] Preferably, a "T"-shaped connecting and mounting groove is provided at the top of the movable limiting guide cylinder shaft, and a force-bearing auxiliary protrusion for slidingly hooking along the connecting and mounting groove is provided at the bottom of the force-bearing connecting sleeve; and a plurality of one-way guide blocks with triangular cross-sections are provided at the upper end of the inner wall of the movable limiting guide cylinder shaft, and a force-bearing limiting block distributed in a centrally symmetrical manner with the one-way guide block is provided at the bottom of the ribbed steel bar.

[0009] Preferably, the internal gaps of the movable limit guide cylinder shaft and the fixed limit guide cylinder shaft constitute an adjustment cavity; and the movable limit guide cylinder shaft is adjusted to slide and close with the extension sleeve through the axial limit groove, the axial limit protrusion and the extension sleeve, so that the movable limit guide cylinder shaft and the fixed limit guide cylinder shaft are in relative fit contact, forming a partition structure that closes the adjustment cavity.

[0010] Preferably, the movable limit guide cylinder shaft is adjusted by sliding expansion through the axial limit groove, the axial limit protrusion and the extension sleeve, so that the movable limit guide cylinder shaft and the fixed limit guide cylinder shaft are adjusted to move away from each other relatively to form an occlusal accommodating cavity for accommodating the occlusal end expansion protrusions of the primary hard occlusal component and the secondary top expansion mechanism; and both ends of the occlusal accommodating cavity are truncated cone-shaped.

[0011] Preferably, the primary hard bite component includes a primary forked base frame slidably arranged on the guide rail; and, the forked end of the primary forked base frame is provided with a bite block through at least two hinge shafts A, and, the outer arc surface of the bite block is evenly provided with connecting teeth A for bite connection to the hard layer; and, an extension accommodating cavity is provided inside the bite block, and, an extension force-bearing block is movably provided inside the bite block.

[0012] Preferably, the secondary top extension mechanism includes a secondary forked base frame screwed onto the screw rod; and, a secondary extrusion block is provided at the forked end of the secondary forked base frame through at least two hinge shafts B; and, contact and clamping blocks are provided on both sides of the secondary extrusion block, and, inclined auxiliary cut surfaces are provided on the upper and lower sides of the contact and clamping block; wherein, arc-shaped chamfered surfaces are provided on the upper and lower ends of the secondary extrusion block and the bite block in the same shape as the two ends of the bite accommodating cavity.

[0013] A method for using a slope support multi-stage reinforcement device comprises the following steps: S100, drilling treatment: use anchor drilling machine to drill holes on the slopes required for water conservancy projects; S200, installation process: inserting and installing the force-bearing connection sleeve into the top slot of the connection installation slot through the force-bearing auxiliary protrusion; S300, interpenetration processing: applying a force to the force-bearing connecting sleeve so that the movable limit guide cylinder shaft and the fixed limit guide cylinder shaft in the multi-stage reinforcement device are always in contact with each other and enter the required drilling depth; S400, Anchoring Processing: If anchoring treatment is performed on the hard layer: The ribbed steel bars are pushed manually or by machine to cause the primary forked base frame to slide downward along the guide rail and contact the upper surface of the guide spiral head. Then, by further pushing the hinge shaft A, both ends of the engaging accommodating cavity are arranged in a truncated cone shape, so that each set of hinge shafts A rotates synchronously, and the engaging block is unfolded. The connecting teeth A arranged on the outer surface of the engaging block are used to fully engage and connect the circumferential surface of the hard layer drilling hole. If anchoring treatment is performed on the soil layer: The ribbed steel bars are pushed manually or by machine to cause the primary forked base frame to slide downward along the guide rail and contact the upper surface of the guide spiral head. Then, by further pushing, the two ends of the bite accommodating cavity are arranged in a truncated cone shape under the action of the hinge shaft A, so that each group of hinge shafts A rotate synchronously, and the bite block is unfolded. Then, the ribbed steel bars are rotated manually or by machine to cause the secondary forked base frame to move downward synchronously and contact the upper surface of the guide spiral head. Then, by further rotating, the two ends of the bite accommodating cavity are arranged in a truncated cone shape under the action of the hinge shaft B, so that each group of hinge shafts B rotate synchronously, so that the secondary extrusion block is unfolded. The extended force-bearing block is further unfolded outward by the contact and tightening block setting on both sides of the secondary extrusion block. The soil layer is inserted through the comb-shaped extended force-bearing block, and the effective contact surface maintains a good anchoring effect. S500, disassembly process: then the force-bearing connection sleeve is separated from the connection installation groove by rotating and pulling; S600, grouting treatment: pour the drilled hole with cement mortar and rotate the force-bearing fastening block.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes a good rigid bite connection to the hard layer through a first-level hard bite component that can be unfolded on a first-level basis, and realizes the anchor connection of the underground layer of the water conservancy project as a rock-like hard layer during the anchor operation; and the second-level top expansion mechanism descends and unfolds to realize further force-extrusion and expansion of the first-level hard bite component, so that the movable bite end in the first-level hard bite component can be further inserted and connected to the soil layer outside the borehole, thereby improving the good effect of the contact surface and realizing the anchor connection of the underground layer of the water conservancy project as a soil-like geological layer during the anchor operation; the first-level foundation is unfolded to adapt to the anchor connection of the hard layer, and then the second-level unfolding is used to adapt to the anchor connection of the soil layer. Based on the above multi-stage operation, the functionality of the reinforcement device is effectively improved.

[0015] 2. The present invention arranges a force-bearing auxiliary protrusion at the bottom of the force-bearing connecting sleeve, so that the force-bearing connecting sleeve can be inserted along the top slot of the connecting installation slot, and the inner shaft sleeve assembly is braked as a whole by stopping the force-bearing connecting sleeve, effectively avoiding the inconvenience of adjustment caused by the synchronous rotation of the inner shaft sleeve assembly while the ribbed steel bar is rotated; at the same time, a plurality of one-way guide blocks with triangular cross-sections are matched with force-bearing limit blocks of the same shape using an inclined guide arrangement, so that the force-bearing limit block cannot be excessively stretched upward while sliding downward, effectively controlling the primary hard bite assembly and the secondary top extension mechanism to maintain a relatively fixed height after moving downward, avoiding the situation in which the primary hard bite assembly and the secondary top extension mechanism are retracted due to the upward movement of the ribbed steel bar, resulting in unstable anchoring.

[0016] 3. The present invention applies the main force to the load-bearing connecting sleeve through manual or machine operation, so that the movable limit guide cylinder shaft is always in contact with the fixed limit guide cylinder shaft, effectively reducing the inability of the adjustment cavity in the drill hole to contact with the drill hole gravel and soil residue when the multi-stage reinforcement device is penetrated into the drill hole, avoiding the gravel and soil residue entering the adjustment cavity to interfere with the movement of the first-level hard bite component and the second-level top expansion mechanism.

[0017] 4. After the multi-stage reinforcement device is penetrated into the required depth of the drilling hole based on manual or machine operation, the force-bearing auxiliary protrusion is hooked with the horizontal part of the connecting installation groove, and the movable limit guide cylinder shaft is separated from the fixed limit guide cylinder shaft by pulling the force-bearing connecting sleeve, so as to facilitate the expansion of the first-level hard bite component and the second-level top expansion mechanism for anchoring work.

[0018] 5. The present invention uses manual or machine methods to push the ribbed steel bars so that the primary forked base frame slides downward along the guide rail and contacts the upper surface of the guide spiral head. Then, by further pushing the hinge axis A, both ends of the engaging accommodating cavity are arranged in a truncated cone shape, so that each set of hinge axes A rotates synchronously, and the engaging blocks are unfolded. The connecting teeth A arranged on the outer surface of the engaging blocks are used to fully engage and connect the circumferential surface of the hard layer drilling hole.

[0019] 6. The present invention is based on the expansion of the bite block, and rotates the ribbed steel bars manually or based on the secondary forked base frame to synchronously move downward and contact the upper surface of the guide spiral head, and then further rotates under the action of the hinge shaft B to cooperate with the two ends of the bite accommodating cavity to be set in a truncated cone shape, so that each group of hinge shafts B rotate synchronously, so that the secondary extrusion block can be expanded, and the extended force-bearing block is further expanded outward through the contact and tightening block settings on both sides of the secondary extrusion block, and the soil layer is inserted through the comb-shaped extended force-bearing block, and the effective contact surface maintains a good anchoring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the inner sleeve assembly of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the partially enlarged structure at center A; Figure 4 It is a schematic diagram of the structure of the occlusal accommodation cavity of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the primary hard bite assembly and the secondary top spreading mechanism of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the bite block and the secondary extrusion block of the present invention; Figure 7 It is a schematic diagram of the three-dimensional internal top view of the first-level hard bite assembly and the second-level top expansion mechanism of the present invention; Figure 8 It is a schematic diagram of the top view of the primary hard bite assembly and the secondary top expansion mechanism of the present invention.

[0021] Description of the numbers in the figure: 1. Inner bushing assembly; 2. First-level hard bite assembly; 3. Second-level top extension mechanism; 4. Screw rod; 5. Ribbed steel bar; 6. Screw shaft; 7. Force-bearing fastening block; 8. Force-bearing connecting sleeve; 101, guide screw head; 1011, fixed limit guide cylinder shaft; 1012, movable limit guide cylinder shaft; 1013, axial limit slide groove; 1015, connecting installation groove; 1016, one-way guide block; 102, guide slide rail; 103, extension sleeve; 1031, axial limit protrusion; 201, primary forked base frame; 202, hinge axis A; 203, bite block; 204, connecting tooth A; 205, extension force block; 301, secondary bifurcated base frame; 302, hinge axis B; 303, secondary extrusion block; 3031, contact and tight block; 3032, auxiliary section; 501, force limiting block; 801. Force-assisted protrusion. DETAILED DESCRIPTION

[0022] like Figures 1 to 8As shown, the present invention relates to a multi-stage reinforcement device for slope support, comprising an inner sleeve assembly 1, which is a telescopic structure; a first-level hard bite assembly 2 is arranged inside the inner sleeve assembly 1; and a second-level top expansion mechanism 3 is movably arranged on the first-level hard bite assembly 2; and a screw rod 4 is rotatably arranged on the top of the first-level hard bite assembly 2 through a bearing; the second-level top expansion mechanism 3 is threadedly connected to the screw rod 4; and a ribbed steel bar 5 is fixedly arranged on the top of the screw rod 4, and a screw shaft 6 is fixedly arranged on the top of the ribbed steel bar 5, and a force-bearing fastening block 7 is threadedly connected to the screw shaft 6; a force-bearing connecting sleeve 8 is detachably connected to the top of the inner sleeve assembly 1. The present invention realizes a good rigid bite connection to the hard layer through a first-level hard bite component 2 that can be unfolded on a first-level basis, thereby realizing the anchor connection of the underground layer of the water conservancy project as a rock-like hard layer during the anchor operation; and the second-level top expansion mechanism 3 descends and unfolds to realize further force-extrusion and expansion of the first-level hard bite component 2, so that the movable bite end in the first-level hard bite component 2 can be further inserted and connected to the soil layer outside the borehole, thereby improving the good effect of the contact surface, thereby realizing the anchor connection of the underground layer of the water conservancy project as a soil-like geological layer during the anchor operation; the first-level foundation is unfolded to adapt to the anchor connection of the hard layer, and the second-level unfolding is then used to adapt to the anchor connection of the soil layer. Based on the above-mentioned multi-stage operation, the functionality of the reinforcement device is effectively improved.

[0023] In an embodiment of the present invention, the inner sleeve assembly 1 includes a guide spiral head 101 fixedly arranged below the primary hard bite assembly 2; a guide slide rail 102 is fixedly arranged at the middle end of the top of the guide spiral head 101; an extension sleeve 103 is arranged on the top of the guide slide rail 102; a plurality of axial limit protrusions 1031 are arranged in a ring shape and at equal intervals on the side of the extension sleeve 103; a fixed limit guide cylinder shaft 1011 is arranged on the side of the top of the guide spiral head 101; and a movable limit guide cylinder shaft 1012 is arranged above the fixed limit guide cylinder shaft 1011, and an axial limit slide groove 1013 that slides with the axial limit protrusion 1031 is arranged on the side of the movable limit guide cylinder shaft 1012.

[0024] In an embodiment of the present invention, a "T"-shaped connecting installation groove 1015 is arranged at the top of the movable limiting guide cylinder shaft 1012, and a force-bearing auxiliary protrusion 801 for slidingly hooking along the connecting installation groove 1015 is arranged at the bottom of the force-bearing connecting sleeve 8; and, a plurality of one-way guide blocks 1016 with a triangular cross-section are arranged at the upper end of the inner wall of the movable limiting guide cylinder shaft 1012, and a force-bearing limiting block 501 distributed in a centrally symmetrical manner with the one-way guide block 1016 is arranged at the bottom of the ribbed steel bar 5. The present invention arranges the force-bearing auxiliary protrusion 801 at the bottom of the force-bearing connecting sleeve 8, so that the force-bearing connecting sleeve 8 can be inserted along the top slot of the connecting installation groove 1015, and the inner shaft sleeve assembly 1 is braked as a whole by stopping the force-bearing connecting sleeve 8, effectively avoiding the situation that the inner shaft sleeve assembly 1 rotates synchronously with the ribbed steel bar 5 and causes inconvenience in adjustment; at the same time, a plurality of one-way guide blocks 1016 with triangular cross-sections are matched with the force-bearing limit block 501 of the same shape using an inclined guide arrangement, so that the force-bearing limit block 501 cannot be excessively stretched upward while sliding downward, effectively controlling the primary hard bite assembly 2 and the secondary top expansion mechanism 3 to maintain a relatively fixed height after moving downward, avoiding the situation that the ribbed steel bar 5 moves upward and causes the primary hard bite assembly 2 and the secondary top expansion mechanism 3 to retract, causing unstable anchoring.

[0025] In the embodiment of the present invention, the internal gaps of the movable limit guide cylinder shaft 1012 and the fixed limit guide cylinder shaft 1011 form an adjustment cavity; and the movable limit guide cylinder shaft 1012 is adjusted by sliding and closing through the axial limit slide groove 1013, the axial limit protrusion 1031 and the extension sleeve 103, so that the movable limit guide cylinder shaft 1012 and the fixed limit guide cylinder shaft 1011 are in relative fit contact, forming a partition structure that closes the adjustment cavity. The present invention applies the main force to the force-bearing connecting sleeve 8 through manual or machine operation, so that the movable limit guide cylinder shaft 1012 and the fixed limit guide cylinder shaft 1011 are always in contact, effectively reducing the inability of the adjustment cavity to contact with the drilled gravel and soil residue when the multi-stage reinforcement device of the protection penetrates into the borehole, and avoiding the gravel and soil residue entering the adjustment cavity to cause motion interference to the expansion movement of the primary hard bite component 2 and the secondary top expansion mechanism 3.

[0026] In the embodiment of the present invention, the movable limiting guide cylinder shaft 1012 is adjusted by sliding and unfolding through the axial limiting sliding groove 1013, the axial limiting protrusion 1031 and the extension sleeve 103, so that the movable limiting guide cylinder shaft 1012 and the fixed limiting guide cylinder shaft 1011 are relatively adjusted away from each other to form an occlusal accommodating cavity that accommodates the occlusal end of the primary hard occlusal component 2 and the secondary top extension mechanism 3; and both ends of the occlusal accommodating cavity are truncated. After the multi-stage reinforcement device is penetrated into the required depth of the drilling hole based on manual or machine operation, the force-bearing auxiliary protrusion 801 is hooked with the horizontal part of the connecting installation groove 1015, and the movable limiting guide cylinder shaft 1012 is separated from the fixed limiting guide cylinder shaft 1011 by pulling the force-bearing connecting sleeve 8, so that the primary hard occlusal component 2 and the secondary top extension mechanism 3 can be unfolded and anchored.

[0027] In an embodiment of the present invention, the primary hard bite component 2 includes a primary forked base frame 201 slidably arranged on a guide rail 102; and, a bite block 203 is provided at the forked end of the primary forked base frame 201 through at least two hinge shafts A202, and, the outer arc surface of the bite block 203 is evenly provided with connecting teeth A204 for bite connection to the hard layer; and, an extension accommodating cavity is provided inside the bite block 203, and, an extension force-bearing block 205 is movably provided inside the bite block 203. The present invention pushes the ribbed steel bars 5 manually or by machine, causing the first-stage forked base frame 201 to slide downward along the guide rail 102 and contact the upper surface of the guide spiral head 101, and then further pushes the engagement accommodating cavity under the action of the hinge shaft A202, both ends of which are arranged in a truncated cone shape, so that each group of hinge shafts A202 rotates synchronously, allowing the engagement block 203 to unfold, and utilizing the connecting teeth A204 arranged on the outer surface of the engagement block 203 to fully engage and connect the circumferential surface of the hard layer drilling hole.

[0028] In an embodiment of the present invention, the secondary top extension mechanism 3 includes a secondary forked base frame 301 screwed on the screw rod 4; and, a secondary extrusion block 303 is provided at the forked end of the secondary forked base frame 301 through at least two hinge shafts B302; and, contact and clamping blocks 3031 are provided on both sides of the secondary extrusion block 303, and, inclined auxiliary cutting surfaces 3032 are provided on the upper and lower sides of the contact and clamping block 3031; wherein, the upper and lower ends of the secondary extrusion block 303 and the bite block 203 are provided with arc chamfered surfaces in the shape of the two ends of the bite accommodating cavity. The present invention is based on the unfolding of the bite block 203, and rotates the ribbed steel bar 5 manually or manually to cause the secondary forked base frame 301 to move downward synchronously and contact the upper surface of the guide spiral head 101, and then further rotates under the action of the hinge shaft B302 to cooperate with the cone-shaped setting of both ends of the bite accommodating cavity, so that each group of hinge shafts B302 rotates synchronously, so that the secondary extrusion block 303 can be unfolded, and the extended force block 205 is further unfolded outward by the contact and tightening blocks 3031 on both sides of the secondary extrusion block 303, and the soil layer is inserted through the comb-shaped extended force block 205, and the effective contact surface maintains a good anchoring effect.

[0029] Working principle: This embodiment provides a multi-stage reinforcement device for slope support, and the following steps are used: S100, drilling treatment: use anchor drilling machine to drill holes on the slopes required for water conservancy projects; S200, installation process: insert and install the force-bearing connection sleeve 8 into the top slot of the connection installation slot 1015 through the force-bearing auxiliary protrusion 801; S300, interpenetration processing: applying force to the force-bearing connecting sleeve 8 so that the movable limit guide cylinder shaft 1012 and the fixed limit guide cylinder shaft 1011 in the multi-stage reinforcement device are always in contact with each other and enter the required drilling depth; S400, Anchoring Processing: If anchoring treatment is performed on the hard layer: The ribbed steel bar 5 is pushed manually or by machine to make the primary forked base frame 201 slide downward along the guide rail 102 and contact the upper surface of the guide spiral head 101, and then further pushed under the action of the hinge shaft A202, the two ends of the engaging accommodating cavity are arranged in a truncated cone shape, so that each set of hinge shafts A202 rotates synchronously, so that the engaging block 203 is unfolded, and the connecting teeth A204 arranged on the outer surface of the engaging block 203 are used to fully engage and connect the circumferential surface of the hard layer drilling hole; If anchoring treatment is performed on the soil layer: The ribbed steel bar 5 is pushed manually or by machine to cause the primary forked base frame 201 to slide downward along the guide rail 102 and contact the upper surface of the guide spiral head 101, and then further pushed under the action of the hinge shaft A202, the two ends of the bite accommodating cavity are set in a truncated cone shape, so that each group of hinge shafts A202 rotate synchronously, so that the bite block 203 is unfolded, and then the ribbed steel bar 5 is rotated manually or based on to cause the secondary forked base frame 301 to move downward synchronously and contact the upper surface of the guide spiral head 101, and then further rotated under the action of the hinge shaft B302, the two ends of the bite accommodating cavity are set in a truncated cone shape, so that each group of hinge shafts B302 rotate synchronously, so that the secondary extrusion block 303 is unfolded, and the extension force block 205 is further unfolded outward by the contact and tightening blocks 3031 on both sides of the secondary extrusion block 303, and the soil layer is inserted through the comb-shaped extension force block 205, and the effective contact surface maintains a good anchoring effect; S500, disassembly process: then the force-bearing connecting sleeve 8 is separated from the connecting installation groove 1015 by rotating and pulling; S600, grouting treatment: pouring cement mortar into the drilled hole, and rotating the force-bearing fastening block 7.

[0030] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A multi-stage slope support reinforcement device, characterized in that: The invention comprises an inner sleeve assembly (1), wherein the inner sleeve assembly (1) is a telescopic structure; a primary hard bite assembly (2) is arranged inside the inner sleeve assembly (1); and a secondary top extension mechanism (3) is movably arranged on the primary hard bite assembly (2); Furthermore, a screw rod (4) is rotatably arranged at the top of the primary hard bite component (2) via a bearing; the secondary top extension mechanism (3) is threadedly connected to the screw rod (4); Furthermore, a ribbed steel bar (5) is fixedly disposed on the top of the screw rod (4), and a screw shaft (6) is fixedly disposed on the top of the ribbed steel bar (5), and a force-bearing fastening block (7) is threadedly connected to the screw shaft (6); The top of the inner shaft sleeve assembly (1) is detachably connected to a force-bearing connecting sleeve (8).

2. A multi-stage slope support reinforcement device according to claim 1, characterized in that: The inner sleeve assembly (1) comprises a guide screw head (101) fixedly arranged below the primary hard bite assembly (2); a guide rail (102) is fixedly arranged at the middle of the top of the guide screw head (101); an extension sleeve (103) is arranged at the top of the guide rail (102); and a plurality of axial limiting protrusions (1031) are arranged in a circular shape at equal intervals on the side of the extension sleeve (103); A fixed limiting guide cylinder shaft (1011) is provided on the top side of the guide screw head (101); Furthermore, a movable limiting guide cylinder shaft (1012) is arranged above the fixed limiting guide cylinder shaft (1011), and an axial limiting sliding groove (1013) which is slidably matched with the axial limiting protrusion (1031) is arranged on the side of the movable limiting guide cylinder shaft (1012).

3. A multi-stage slope support reinforcement device according to claim 2, characterized in that: A "T"-shaped connecting and mounting groove (1015) is provided at the top of the movable limiting guide cylinder shaft (1012), and a force-bearing auxiliary protrusion (801) for slidingly hooking along the connecting and mounting groove (1015) is provided at the bottom of the force-bearing connecting sleeve (8); Furthermore, a plurality of one-way guide blocks (1016) having a triangular cross-section are arranged at the upper end of the inner wall of the movable limit guide cylinder shaft (1012), and a force limit block (501) distributed in a centrally symmetrical manner with the one-way guide block (1016) is arranged at the bottom of the ribbed steel bar (5).

4. A multi-stage slope support reinforcement device according to claim 3, characterized in that: The internal gap between the movable limiting guide cylinder shaft (1012) and the fixed limiting guide cylinder shaft (1011) forms an adjustment cavity; Furthermore, the movable limiting guide cylinder shaft (1012) is slidably closed and adjusted through the axial limiting sliding groove (1013), the axial limiting protrusion (1031) and the extension cylinder sleeve (103), so that the movable limiting guide cylinder shaft (1012) and the fixed limiting guide cylinder shaft (1011) are in relative fit contact, forming a partition structure that closes the adjustment cavity.

5. A multi-stage slope support reinforcement device according to claim 4, characterized in that: The movable limiting guide cylinder shaft (1012) is slidably expanded and adjusted through the axial limiting sliding groove (1013), the axial limiting protrusion (1031) and the extension sleeve (103), so that the movable limiting guide cylinder shaft (1012) and the fixed limiting guide cylinder shaft (1011) are relatively adjusted away from each other to form an occlusal accommodating cavity for accommodating the occlusal end expansion protrusion of the primary hard occlusal component (2) and the secondary top expansion mechanism (3); Furthermore, both ends of the occlusal accommodating cavity are truncated cone-shaped.

6. A multi-stage slope support reinforcement device according to claim 5, characterized in that: The primary hard bite assembly (2) comprises a primary forked base frame (201) slidably arranged on the guide rail (102); and a bite block (203) is provided at the forked end of the primary forked base frame (201) via at least two hinge shafts A (202); and the outer arc surface of the bite block (203) is evenly provided with connecting teeth A (204) for bite connection with the hard layer; Furthermore, an extension accommodating cavity is provided inside the bite block (203), and an extension force-bearing block (205) is movably provided inside the bite block (203).

7. A multi-stage slope support reinforcement device according to claim 6, characterized in that: The secondary top-spreading mechanism (3) comprises a secondary bifurcated base frame (301) screwed onto the screw rod (4); and a secondary extrusion block (303) is provided at the bifurcated end of the secondary bifurcated base frame (301) via at least two hinge shafts B (302); Furthermore, contact and tight blocks (3031) are provided on both sides of the secondary extrusion block (303), and inclined auxiliary cut surfaces (3032) are provided on the upper and lower sides of the contact and tight block (3031); Wherein, the upper and lower ends of the secondary extrusion block (303) and the bite block (203) are both provided with arc-shaped chamfered surfaces that are the same shape as the two ends of the bite accommodating cavity.

8. The method for using the multi-stage slope support reinforcement device according to claim 7, characterized in that: The following steps are involved: S100, drilling treatment: use anchor drilling machine to drill holes on the slopes required for water conservancy projects; S200, installation process: inserting and installing the force-bearing connection sleeve (8) into the top slot of the connection installation slot (1015) through the force-bearing auxiliary protrusion (801); S300, interpenetration processing: applying a force to the force-bearing connecting sleeve (8) so that the movable limit guide cylinder shaft (1012) and the fixed limit guide cylinder shaft (1011) in the multi-stage reinforcement device are always in contact with each other and enter the required drilling depth; S400, Anchoring Processing: If anchoring treatment is performed on the hard layer: The ribbed steel bar (5) is pushed manually or by machine to cause the primary forked base frame (201) to slide downward along the guide rail (102) and to contact the upper surface of the guide spiral head (101). Then, by further pushing the hinge shaft A (202), both ends of the engaging accommodating cavity are arranged in a truncated cone shape, so that each set of hinge shafts A (202) rotate synchronously, so that the engaging block (203) is unfolded, and the connecting teeth A (204) arranged on the outer surface of the engaging block (203) are used to fully engage and connect the circumferential surface of the hard layer drilling hole; If anchoring treatment is performed on the soil layer: The ribbed steel bar (5) is pushed manually or by a machine to cause the primary forked base frame (201) to slide downward along the guide rail (102) and to contact the upper surface of the guide spiral head (101). Then, the two ends of the engagement accommodating cavity are arranged in a truncated cone shape under the action of the hinge shaft A (202), so that each set of hinge shafts A (202) rotates synchronously, so that the engagement block (203) is unfolded. Then, the ribbed steel bar (5) is rotated manually or by a machine to cause the secondary forked base frame (301) to move downward synchronously and to contact the upper surface of the guide spiral head (101). The guide spiral head (101) contacts the upper surface of the guide spiral head (101), and then further rotates under the action of the hinge shaft B (302) to cooperate with the truncated cone-shaped arrangement of both ends of the bite accommodation cavity, so that each set of hinge shafts B (302) rotates synchronously, so that the secondary extrusion block (303) can be expanded, and the extension force-bearing block (205) is further expanded outwards by the contact and tightening blocks (3031) on both sides of the secondary extrusion block (303), and the soil layer is inserted by the comb-shaped extension force-bearing block (205), and the effective contact surface maintains a good anchoring effect; S500, disassembly process: then rotating and pulling the force-bearing connection sleeve (8) to separate it from the connection installation groove (1015); S600, grouting treatment: pouring cement mortar into the drilled hole, and rotating the force-bearing fastening block (7).

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