Recyclable precipitation anchor rod

By designing recyclable dewatering anchors, combined with anchoring mechanisms and permeable pipe assemblies, the problems of complex construction and resource waste in traditional technologies have been solved, achieving a synergistic effect between dewatering and support, and the recycling of anchors.

CN122106066APending Publication Date: 2026-05-29GUANGZHOU MUNICIPAL ENGINEERING GROUP LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU MUNICIPAL ENGINEERING GROUP LTD
Filing Date
2026-03-05
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional well dewatering and anchor bolt support technologies are complex to construct in narrow spaces, and the anchor bolts, as permanent structures, result in resource waste, which contradicts the concept of green building. Independent work fails to achieve synergistic efficiency.

Method used

Design a recyclable dewatering anchor that combines an anchoring mechanism and a permeable pipe assembly. The anchor expands and contracts to achieve support and dewatering functions, while the permeable pipe assembly operates to achieve the dewatering effect. The anchor can be recycled and reused.

Benefits of technology

It achieves the synergistic effect of precipitation and anchor support, reduces construction complexity, reduces resource waste, improves construction efficiency, and supports the recycling of anchors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a recyclable precipitation anchor rod, which comprises an anchoring mechanism, the anchoring mechanism comprises an anchor head and an anchoring assembly connected with the anchor head, the anchoring assembly comprises a first connecting piece connected to the upper end of the anchor head, a second connecting piece arranged above the first connecting piece, an elastic compression piece abutting between the first connecting piece and the second connecting piece, and an anchoring piece connected between the first connecting piece and the second connecting piece, the anchoring piece comprises an anchoring part rotationally connected to the bottom end of the first connecting piece, a transmission part connected to the top end of the second connecting piece, and the transmission part is in transmission connection with the anchoring part; and a water permeable pipe assembly, the bottom end of the water permeable pipe assembly is connected with the second connecting piece, and the water permeable pipe assembly can be used to operatively control the second connecting piece to be close to or away from the first connecting piece. In the recyclable precipitation anchor rod, the precipitation and the anchor rod supporting effect are considered, and recycling can be realized, so that the recycling is achieved.
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Description

Technical Field

[0001] This application relates to the field of building engineering technology, and in particular to a recyclable dewatering anchor. Background Technology

[0003] While the traditional "well dewatering + anchor bolt support" technology is widely used, it has significant drawbacks: Dewatering wells and anchor bolts are installed separately, causing interference in confined spaces and increasing construction complexity. Traditional anchor bolts (cables), as permanent structures buried underground, result in a permanent waste of steel and cement resources, creating "underground waste," which contradicts green building and sustainable development principles. The disposable anchor bolt materials and independent dewatering systems constitute a significant portion of the project cost. The support and dewatering systems operate independently, failing to form a synergistic whole. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a recyclable dewatering anchor.

[0005] A recyclable dewatering anchor according to a first aspect of this application includes: an anchoring mechanism comprising an anchor head and an anchoring assembly connected to the anchor head; the anchoring assembly comprising a first connector connected to the upper end of the anchor head, a second connector spaced above the first connector, an elastic compression member abutting between the first and second connectors, and an anchor member connected between the first and second connectors; the anchor member comprising an anchoring portion rotatably connected at its bottom end to the first connector and a transmission portion connected at its top end to the second connector, the transmission portion being drively connected to the anchoring portion; wherein the second connector is configured to move toward the first connector to deflect the top of the anchoring portion outward, and also to move away from the first connector to deflect the top of the anchoring portion inward; and a permeable pipe assembly, the bottom end of which is connected to the second connector, the permeable pipe assembly being operable to control the second connector to move closer to or further away from the first connector.

[0006] The recyclable dewatering anchor bolt according to the embodiments of this application has at least the following beneficial effects: The recyclable dewatering anchor bolt of this application combines the functions of dewatering and anchor bolt support, and can be recycled to achieve recycling.

[0007] According to some embodiments of this application, the transmission part is provided with an inclined groove, the inclined groove gradually slopes outward from bottom to top, and the anchoring part is provided with a guide post passing through the inclined groove.

[0008] According to some embodiments of this application, the anchoring mechanism further includes a guide post, the bottom end of which is slidably engaged with the first connector, and the top end of which is slidably engaged with the second connector.

[0009] According to some embodiments of this application, the transmission part is provided with a relief groove, the shape of the relief groove is adapted to the shape of the anchoring part, and the anchoring part can retract into the relief groove.

[0010] According to some embodiments of this application, the anchoring mechanism further includes an outer protective tube, which is sleeved on the first connector, the second connector, the elastic compression member and the anchor, and the outer protective tube is provided with a strip groove penetrating both the inner and outer sides of the outer protective tube, the strip groove allowing the anchoring part to pass through.

[0011] According to some embodiments of this application, the permeable pipe assembly includes an inner permeable pipe and an outer permeable pipe sleeved on the inner permeable pipe, the bottom end of the outer permeable pipe is fixedly connected to the outer protective pipe, and the inner permeable pipe is fixedly connected to the second connector.

[0012] According to some embodiments of this application, the permeable pipe assembly further includes a sealing element, which is disposed at the top of the outer permeable pipe and has a through hole extending vertically. The permeable pipe assembly also includes a pumping connector, the bottom of which is disposed through the through hole inside the outer permeable pipe and fixedly connected to the inner permeable pipe, and the top of which extends out from the top of the through hole.

[0013] According to some embodiments of this application, the seal is threadedly connected to the external permeable pipe.

[0014] According to some embodiments of this application, a permeable blind pipe is also provided between the outer permeable pipe and the inner permeable pipe.

[0015] According to some embodiments of this application, a support net is provided between the permeable blind pipe and the external permeable pipe.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of a recyclable rainwater anchor bolt according to an embodiment of this application; Figure 2 This is a cross-sectional view of a recyclable dewatering anchor according to an embodiment of this application; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle; Figure 5 for Figure 2 Enlarged view of point C in the middle; Figure 6 for Figure 2 Enlarged view of point D in the middle; Figure 7 This is a schematic diagram of the structure of an anchoring mechanism according to an embodiment of this application; Figure 8 This is an exploded view of an anchoring mechanism according to an embodiment of this application; Figure 9 This is a schematic diagram of the structure of an anchoring assembly according to an embodiment of this application; Figure 10 This is a cross-sectional view of an anchoring component according to an embodiment of this application; Figure 11 This is an exploded view of an anchoring assembly according to an embodiment of this application; Figure 12 This is a partial structural schematic diagram of an anchoring component according to an embodiment of this application; Figure 13 for Figure 12 Enlarged view at point E in the middle; Figure 14 This is a schematic diagram of the top structure of a recyclable rainwater anchor bolt according to an embodiment of this application; Figure 15 for Figure 14 The figure shown is a cross-sectional view.

[0018] Icon labels: 100. Anchoring mechanism; 110. Anchor head; 111. Conical section; 112. Square section; 113. Connecting section; 120. Anchoring assembly; 121. First connector; 122. Second connector; 123. Elastic compression member; 124. Anchor; 1241. Anchoring part; 12411. Guide post; 1242. Transmission part; 12421. Inclined groove; 12422. Clearance groove; 125. Guide post; 126. Outer protective tube; 130. Lower connector; 140. Upper connector; 200. Permeable pipe assembly; 210. Inner permeable pipe; 220. Outer permeable pipe; 230. Permeable blind pipe; 240. Support net; 300. Sealing element; 400. Pumping joint; 500. Extension plate. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] like Figure 1 As shown, an embodiment of this application provides a recyclable rainwater anchor bolt, including an anchoring mechanism 100 and a permeable pipe assembly 200.

[0023] Combination Figure 1 and Figure 7 The anchoring mechanism 100 includes an anchor head 110 and an anchoring assembly 120 connected to the anchor head 110.

[0024] Combination Figure 7 and Figure 8The anchor head 110 includes a conical section 111, a square section 112 connected above the conical section 111, and a connecting section 113 connected above the square section 112. The connecting section 113 is used to connect with the anchoring assembly 120. Specifically, the conical section 111, the square section 112, and the connecting section 113 of the anchor head 110 are integrally formed. The taper of the conical section 111 is set to 1:5-1:8, and the side length of the cross-section of the square section 112 is consistent with the maximum diameter of the conical section 111. The conical structure of the conical section 111 can reduce the resistance when the anchor rod is implanted into the soil or rock strata, making the installation more convenient and efficient.

[0025] like Figures 9 to 12 As shown, the anchoring assembly 120 includes a first connector 121, a second connector 122, an elastic compression member 123, and an anchor 124.

[0026] Combination Figure 2 and Figure 3 Specifically, the first connecting member 121 is connected to the anchor head 110. More specifically, the anchoring mechanism 100 also includes a lower connecting member 130 connected to the first connecting member 121, and the lower connecting member 130 is connected to the connecting segment 113. Exemplarily, the lower connecting member 130 is engaged with the first connecting member 121. Further, the top of the lower connecting member 130 has a first engaging step, and the inner wall of the first connecting member 121 is provided with a first engaging groove. The first engaging step engages in the first engaging groove, thereby realizing the connection between the lower connecting member 130 and the first connecting member 121.

[0027] Please refer to Figures 2 to 4 ,as well as Figures 9 to 12The second connector 122 is spaced above the first connector 121 and is configured to move closer to or further away from the first connector 121. An elastic compression member 123 abuts between the first connector 121 and the second connector 122. The elastic compression member 123 can be a spring and is in a compressed state. An anchor 124 is connected between the first connector 121 and the second connector 122. The anchor 124 can expand outward or contract inward. When the anchor 124 expands outward, it can be anchored within the rock strata of the soil. When the anchor 124 contracts inward, it can be easily retrieved. Specifically, the anchor 124 includes an anchoring part 1241 whose bottom end is rotatably connected to the first connector 121, and a transmission part 1242 whose top end is connected to the second connector 122. The transmission part 1242 is drively connected to the anchoring part 1241. The second connector 122 is configured to move towards... The first connector 121 can move to deflect the top of the anchoring part 1241 outward, thereby expanding the anchoring part 1241 outward. It can also move away from the first connector 121 to deflect the top of the anchoring part 1241 inward, thereby retracting the anchoring part 1241 inward. More specifically, the bottom end of the anchoring part 1241 is rotatably connected to the first connector 121 via a pivot. The anchoring part 1241 can deflect outward or inward with its lower end as a hinge. The top end of the transmission part 1242 is fixedly connected to the second connector 122, and the transmission part 1242 extends downward, such as... Figure 12 , Figure 13 As shown, the transmission part 1242 is provided with a sloping groove 12421, which gradually slopes outward from bottom to top. The anchoring part 1241 is provided with a guide post 12411 that passes through the sloping groove 12421. Thus, when the second connecting member 122 moves toward the first connecting member 121, the top of the anchoring part 1241 can be deflected outward, thereby causing the anchoring part 1241 to expand outward. When the second connecting member 122 moves away from the first connecting member 121, the top of the anchoring part 1241 can be deflected inward, thereby causing the anchoring part 1241 to retract inward.

[0028] Understandably, the elastic compression member 123 is held between the first connector 121 and the second connector 122. During the recovery, the elastic restoring force of the elastic compression member 123 can assist the second connector 122 to move upward, causing the anchoring part 1241 to contract inward, reducing the force of the recovery operation and making the recovery more effortless.

[0029] like Figure 12As shown, the transmission part 1242 is further provided with a relief groove 12422. The shape of the relief groove 12422 is adapted to the shape of the anchoring part 1241. When the anchoring part 1241 retracts inward, it can retract into the relief groove 12422. When the anchoring part 1241 retracts, it can be embedded in the relief groove 12422, avoiding frictional resistance between the exposed part and the soil, reducing energy consumption and operation difficulty during recovery. The relief groove 12422 protects the anchoring part 1241 in the retracted state, preventing the anchoring part 1241 from colliding with hard objects in the soil during recovery, avoiding damage to the tooth pattern or deformation of the parts, and ensuring the reliability of subsequent reuse. After the anchoring part 1241 is fully retracted, the overall outer diameter of the anchor 124 is reduced, making the overall recovery of the anchor rod smoother and not damaging the surrounding soil structure.

[0030] Combination Figure 9 and Figure 10 In some embodiments, the anchoring mechanism 100 further includes a guide post 125. The bottom end of the guide post 125 is slidably engaged with the first connecting member 121, and the top end of the guide post 125 is slidably engaged with the second connecting member 122. The guide post 125 guides the movement of the second connecting member 122 relative to the first connecting member 121. The guide post 125 restricts the direction of movement of the second connecting member 122, ensuring that it moves in a vertical straight line, avoiding deviation that could cause asymmetrical expansion or contraction of the anchor 124, ensuring balanced force during anchoring, and improving anchoring stability.

[0031] like Figures 2 to 4 As shown, in some embodiments, the anchoring mechanism 100 further includes an outer protective tube 126, which is sleeved around the first connector 121, the second connector 122, the elastic compression member 123, and the anchor 124. The outer protective tube 126 has a strip-shaped groove penetrating both its inner and outer sides. The strip-shaped groove is adapted to the anchoring part 1241, allowing the anchoring part 1241 to pass through. The bottom end of the outer protective tube 126 is threadedly connected to the anchor head 110. The outer protective tube 126 isolates the internal components from the soil, preventing impurities such as mud and groundwater from entering, avoiding jamming or corrosion of moving parts, and ensuring the long-term stable operation of the anchoring mechanism 100.

[0032] like Figures 2 to 6 As shown, the bottom end of the permeable pipe assembly 200 is connected to the second connector 122, and the permeable pipe assembly 200 can operably control the second connector 122 to move closer to or further away from the first connector 121.

[0033] Specifically, the permeable pipe assembly 200 includes an inner permeable pipe 210 and an outer permeable pipe 220 sleeved within the inner permeable pipe 210. The bottom end of the outer permeable pipe 220 is fixedly connected to the outer protective pipe 126, specifically via a threaded connection. The inner permeable pipe 210 is fixedly connected to the second connecting member 122. Specifically, the anchoring mechanism 100 also includes an upper connecting member 140, the bottom of which is provided with a second engaging step. The inner wall of the second connecting member 122 is provided with a second engaging groove, and the second engaging step engages within the second engaging groove, thereby achieving the connection between the upper connecting member 140 and the second connecting member 122. Furthermore, the upper connecting member 140 is threadedly connected to the inner permeable pipe 210. By raising or lowering the inner permeable pipe 210, the anchoring part 1241 can expand outward or retract inward.

[0034] Both the inner permeable pipe 210 and the outer permeable pipe 220 are porous structures with a pore diameter of 2-5mm and a porosity of 20%-30%, ensuring water permeability. The porous structure of the permeable pipes enables rainwater drainage, quickly removing groundwater, reducing soil moisture content, improving soil stability, and providing more favorable geological conditions for anchoring. The inner permeable pipe 210 acts as a transmission rod; its up-and-down movement precisely controls the position of the second connecting piece 122, thereby enabling the expansion and contraction of the anchor 124. This dual-purpose design simplifies the overall structure and reduces manufacturing costs.

[0035] Combination Figure 6 , Figure 14 and Figure 15 Furthermore, the permeable pipe assembly 200 also includes a seal 300, which passes through the top of the outer permeable pipe 220 and has a through hole extending vertically. The permeable pipe assembly 200 also includes a pumping connector 400, the bottom of which passes through the through hole into the outer permeable pipe 220 and is fixedly connected to the inner permeable pipe 210 by threads. The top of the pumping connector 400 extends from the top of the through hole, and an annular groove is provided on the side of the pumping connector 400 away from the inner permeable pipe for connecting and fixing a pump. The sealing structure of the seal 300 prevents groundwater and sediment from entering the interior through the top of the permeable pipe, avoids component corrosion or jamming, and ensures the stability of the transmission mechanism and the dewatering function.

[0036] Furthermore, the seal 300 is threadedly connected to the outer permeable pipe 220. The seal 300 can be rotated to change its tightness. In some embodiments, the pumping connector 400 is fixedly connected to the seal 300. By rotating the seal 300, the inner permeable pipe 210 can be raised or lowered, thereby causing the anchoring part 1241 to expand outward or retract inward. In other embodiments, the pumping connector 400 and the seal 300 may not be fixed. The inner permeable pipe 210 can be raised or lowered by moving the pumping connector 400 up and down.

[0037] In some embodiments, an extension plate 500 is provided on the top of the external permeable pipe 220.

[0038] In some embodiments, a permeable blind pipe 230 is further provided between the outer permeable pipe 220 and the inner permeable pipe 210. Further, a support net 240 is provided between the outer permeable pipe 220 and the permeable blind pipe 230.

[0039] The specific usage of the recyclable dewatering anchor bolts in this application is as follows: First, the dewatering anchor is assembled. Then, the assembled anchor is inserted into the pre-set soil hole. The inner permeable pipe 210 is moved downward by the pumping joint 400 or the sealing element 300, which drives the second connecting piece 122 to move closer to the first connecting piece 121. When the second connecting piece 122 moves, the transmission part 1242 moves downward synchronously. The inclined groove 12421 pushes the top of the anchoring part 1241 to deflect outward through the guide post 12411, so that the anchoring part 1241 passes through the strip groove of the outer protective pipe 126 and expands outward, firmly penetrating the soil and rock layer. The anchoring state is maintained by the continuous elastic pressure of the elastic compression member 123, realizing the support function. At the same time, the dewatering reduces the pore water pressure of the soil, increases the effective stress of the soil, and further enhances the anchoring bearing capacity. After the pumping connector 400 is connected to the pumping pump, the equipment is started. The groundwater enters through the permeable holes of the outer permeable pipe 220, and after impurities are filtered through the permeable blind pipe 230, it flows into the pipe through the permeable holes of the inner permeable pipe 210 and is finally pumped out by the pumping pump. Continuous rainfall can lower the slope water level, ensure a dry construction environment, and improve soil stability, forming a virtuous cycle of "synergistic effect" with the anchoring support. After the project's service life expires, the inner permeable pipe 210 is reversed (lifted upwards), causing the second connector 122 to move away from the first connector 121. The elastic compression member 123 returns to its original position and extends. The transmission part 1242 moves upwards with the second connector 122. The inclined groove 12421 pulls the top of the anchoring part 1241 inwards through the guide post 12411, causing the anchoring part 1241 to retract inwards and return to the clearance groove 12422 of the transmission part 1242. The overall outer diameter decreases. After the anchoring part 1241 is fully retracted, the anchoring force between the anchor rod and the soil and rock strata disappears. At this time, the anchor rod can be easily pulled out of the hole. After inspection and maintenance, it can be put back into use in a new project, realizing recycling.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A recyclable dewatering anchor bolt, characterized in that, include: An anchoring mechanism, comprising an anchor head and an anchoring assembly connected to the anchor head, the anchoring assembly comprising a first connector connected to the upper end of the anchor head, a second connector spaced above the first connector, an elastic compression member abutting between the first and second connectors, and an anchor member connected between the first and second connectors, the anchor member comprising an anchoring portion rotatably connected at its bottom end to the first connector and a transmission portion connected at its top end to the second connector, the transmission portion being tractively connected to the anchoring portion, wherein the second connector is configured to move toward the first connector to deflect the top of the anchoring portion outward, and also to move away from the first connector to deflect the top of the anchoring portion inward; A permeable pipe assembly, the bottom end of which is connected to the second connector, the permeable pipe assembly being operable to control the second connector to move closer to or further away from the first connector.

2. The recyclable dewatering anchor bolt according to claim 1, characterized in that, The transmission part is provided with an inclined groove, which gradually slopes outward from bottom to top, and the anchoring part is provided with a guide post that passes through the inclined groove.

3. The recyclable dewatering anchor bolt according to claim 1, characterized in that, The anchoring mechanism further includes a guide post, the bottom end of which is slidably engaged with the first connector, and the top end of which is slidably engaged with the second connector.

4. The recyclable dewatering anchor bolt according to claim 1, characterized in that, The transmission part is provided with a clearance groove, the shape of which is adapted to the shape of the anchoring part, and the anchoring part can retract into the clearance groove.

5. The recyclable dewatering anchor bolt according to claim 1, characterized in that, The anchoring mechanism further includes an outer protective tube, which is sleeved on the first connector, the second connector, the elastic compression member and the anchor. The outer protective tube has a strip groove that runs through both the inner and outer sides of the outer protective tube, and the strip groove allows the anchoring part to pass through.

6. The recyclable dewatering anchor bolt according to claim 5, characterized in that, The permeable pipe assembly includes an inner permeable pipe and an outer permeable pipe sleeved on the inner permeable pipe. The bottom end of the outer permeable pipe is fixedly connected to the outer protective pipe, and the inner permeable pipe is fixedly connected to the second connector.

7. The recyclable dewatering anchor bolt according to claim 6, characterized in that, The permeable pipe assembly also includes a sealing element, which is inserted through the top of the outer permeable pipe and has a through hole extending vertically. The permeable pipe assembly also includes a pumping connector, the bottom of which is inserted through the through hole into the outer permeable pipe and fixedly connected to the inner permeable pipe, and the top of which extends out from the top of the through hole.

8. The recyclable dewatering anchor bolt according to claim 7, characterized in that, The seal is threadedly connected to the external permeable pipe.

9. The recyclable dewatering anchor bolt according to claim 6, characterized in that, A permeable blind pipe is also provided between the outer permeable pipe and the inner permeable pipe.

10. The recyclable dewatering anchor bolt according to claim 9, characterized in that, A support net is provided between the permeable blind pipe and the external permeable pipe.