A curved anchoring device that is easy to disassemble

Abstract

The present invention provides a curved anchoring device that is easy to disassemble. By setting a connection and unlocking mechanism, the device can be disassembled and recovered to avoid affecting underground construction projects and can bypass soft soil and obstacle areas for anchoring. The technical solution is to include a casing, a plurality of barb structures are fixedly connected to the outer wall of the casing, the casing extends into the rock and soil body and is fixedly connected to the bottom end with an anchoring section, the upper end surface of the anchoring section is provided with a connection and unlocking mechanism and is connected to a curved anchoring force-bearing body through the connection and unlocking mechanism, the curved anchoring force-bearing body is fixedly connected with a threaded section, the threaded section is threadedly matched with a nut, a pad is provided between the nut and the rock and soil body slope, a first through hole matching the threaded section is provided at the center of the pad, a second through hole is provided on one side of the center of the pad, a pull rope extending into the casing is provided in the second through hole, and the pull rope is connected to the connection and unlocking mechanism. The present invention provides a curved anchoring device that is easy to disassemble and can be bent and has high applicability.

Description

Technical Field

[0001] The invention relates to an anchoring device, in particular to a curved anchoring device which is convenient to disassemble. Background Art

[0002] In engineering construction, it is necessary to anchor the retaining wall of the building foundation pit through anchor bodies and to securely reinforce the surrounding rocks near the building through anchor bodies. Since many anchor bodies extend into the rock and soil body through grouting reinforcement anchoring, this will make it difficult to dismantle the anchor bodies later. In the subsequent construction of urban subways, the subway construction shield machine will encounter anchor rods or anchor cables installed in the past when supporting the foundation pit. These remaining anchor rods or anchor cables will cause the cutter head of the shield machine to get stuck and unable to get out of the trap, blocking the progress of the shield machine and causing the shield machine to be unable to dig normally. The existing anchor bodies are difficult to dismantle due to their construction process, and the existing anchor bodies generally refer to anchor rods that are mostly linear. In actual engineering construction, when the anchor section of the anchor device encounters soft strata or structures that need to be protected, the anchor device needs to bypass the soft strata or strata that need to be protected for anchoring. At this time, since the existing anchor devices are mostly linear, the anchor devices often cannot bypass the soft strata or strata that need to be protected for anchoring. The existing technology has certain limitations. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a curved anchoring device that is easy to disassemble. By setting a connection and unlocking mechanism, the device not only serves to anchor the rock and soil body but also can be easily disassembled and recovered to avoid "pollution" to the geological environment. By setting a curved anchoring device made of steel strands, when the anchoring section encounters soft strata and obstacles, the anchoring force-bearing body can bypass the soft soil and obstacle areas for anchoring, which greatly improves the applicability of the anchoring device.

[0004] The technical solution is to include a sleeve, wherein the outer wall of the sleeve is fixedly connected with a plurality of barb structures evenly arranged along the axial direction, the sleeve extends into the rock and soil body and is fixedly connected with an anchoring section at the bottom end thereof, a connecting and unlocking mechanism is provided on the upper end face of the anchoring section and is connected with a curved anchoring force-bearing body coaxially arranged with the sleeve through the connecting and unlocking mechanism, one end of the curved anchoring force-bearing body exposed from the rock and soil body is fixedly connected with a threaded section, the threaded section is threadedly matched with a nut, a pad is provided between the nut and the rock and soil body slope, a first through hole matching with the threaded section is provided at the center of the pad, a second through hole communicating with the interior of the sleeve is provided at one side of the center of the pad, a pull rope extending into the interior of the sleeve is provided in the second through hole, and the pull rope is connected to the connecting and unlocking mechanism.

[0005] Preferably, the connection and unlocking mechanism includes a pull hook vertically rotatably connected to the upper end face of the anchoring section, one end of the curved anchoring force-bearing body extending into the rock and soil body is fixedly connected to a first pull ring cooperating with the pull hook, and support plates are symmetrically fixedly connected to the left and right sides of the pull hook, and the lower end faces of the support plates are fixedly connected to support springs connected to the upper end face of the anchoring section.

[0006] Preferably, the initial lengths and elastic coefficients of the support springs are consistent so that the support plate remains parallel to the upper end surface of the anchoring section in the initial state.

[0007] Preferably, a second pull ring is fixedly connected to the upper surface of the support plate, and one end of the pull rope extending into the sleeve is fixedly connected to a third pull ring sleeved with the second pull ring.

[0008] Preferably, the sleeve is made of non-metallic material.

[0009] Preferably, the curved anchoring force-bearing body is made of steel strands.

[0010] Preferably, the second pull ring is fixedly connected to the upper end surface of the support plate corresponding to one side of the opening end of the pull hook.

[0011] The beneficial effects of the present invention are:

[0012] 1. By setting up the connection unlocking mechanism, the device not only plays the role of anchoring the rock and soil, but also can be easily disassembled and recycled to avoid affecting the subsequent development and utilization of the underground space;

[0013] 2. By setting a curved anchoring force-bearing body made of steel strands, when the anchoring section of the building anchoring device encounters soft strata and obstacles, the anchoring force-bearing body can bypass the soft strata and obstacle areas for anchoring, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of the present invention.

[0015] Figure 2 It is a partial cross-sectional view of the overall schematic diagram of the present invention.

[0016] Figure 3 For the present invention Figure 2 A partial enlarged view of area A in the middle.

[0017] Figure 4 It is a schematic diagram of the casing device of the present invention.

[0018] Figure 5 It is a schematic diagram of the pad device of the present invention.

[0019] Figure 6 It is a schematic diagram of the assembly of the present invention in a rock and soil body.

[0020] Reference numerals

[0021] 1. Sleeve, 2. Barb structure, 3. Anchoring section, 5. Curved anchoring force-bearing body, 6. Threaded section, 7. Nut, 8. Pad, 9. First through hole, 10. Second through hole, 11. Pull rope, 12. Draw hook, 13. First pull ring, 14. Support plate, 15. Support spring, 16. Second pull ring, 17. Third pull ring. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-6 The specific implementation modes of the present invention are further described in detail.

[0023] When installing the device of the present invention, firstly, the casing 1 and the anchoring section 3 fixedly connected to the bottom end of the casing 1 are inserted deep into the rock and soil body. The outer wall of the casing 1 is fixedly connected with a plurality of barb structures 2 evenly arranged along the axial direction. When the casing 1 is inserted into the rock and soil body, the plurality of barb structures 2 do not hinder the casing 1 from moving deep into the rock and soil body. After the installation of the device is completed, when the casing 1 is subjected to an upward pulling force, the plurality of barb structures 2 open and grasp the hole wall inside the rock and soil body to hinder the casing 1 from moving upward. The upper end face of the anchoring section 3 is provided with a connection unlocking mechanism and is connected to a curved anchoring force-bearing body 5 coaxially arranged with the casing 1 through the connection unlocking mechanism. The end of the curved anchoring force-bearing body 5 exposed from the rock and soil body is fixedly connected with a threaded section 6. The threaded section The thread of segment 6 is matched with a nut 7, and a pad 8 is provided between the nut 7 and the slope of the rock and soil body. A first through hole 9 matching with the threaded segment 6 is provided in the center of the pad 8, and a second through hole 10 communicating with the interior of the casing 1 is provided on one side of the center of the pad 8. A pull rope 11 extending into the interior of the casing 1 is provided in the second through hole 10, and the pull rope 11 is connected to the connection and unlocking mechanism. The connection and unlocking mechanism includes a pull hook 12 connected to the upper end face of the anchoring segment 3 for vertical rotation, and one end of the curved anchoring force-bearing body 5 extending into the rock and soil body is fixedly connected with a first pull ring 13 matching with the pull hook 12, and the left and right sides of the pull hook 12 are symmetrically fixedly connected with support plates 14, and the lower end faces of the support plates 14 are fixedly connected with support springs 15 connected to the upper end face of the anchoring segment 3, and each support spring 15 The initial length and elastic coefficient are consistent so that the support plate 14 remains parallel to the upper end surface of the anchoring section 3 in the initial state, and the upper end surface of the support plate 14 is fixedly connected to the second pull ring 16, and the end of the pull rope 11 extending into the casing 1 is fixedly connected to the third pull ring 17 sleeved with the second pull ring 16. In the process of inserting the casing 1 into the bottom end of the rock and soil body, the first pull ring 13 on the curved anchoring force-bearing body 5 is always connected to the hook 12 on the upper end surface of the anchoring section 3, and the third pull ring 17 on the pull rope 11 is always connected to the second pull ring 16 on the support plate 14, and then the anchoring section 3 is poured with concrete to anchor the anchoring section 3 deep inside the rock and soil body. After the anchoring is completed, the nut 7 is tightened to press the pad 8 tightly against the edge of the rock and soil body. On the slope, the threaded cooperation between the nut 7 and the threaded section 6 of the curved anchoring force-bearing body 5 generates longitudinal tension on the curved anchoring force-bearing body 5, and the first pull ring 13 on the curved anchoring force-bearing body 5 at one end of the curved anchoring force-bearing body 5 is always connected with the pull hook 12 on the upper end face of the anchoring section 3. Therefore, the longitudinal tension exerted on the curved anchoring force-bearing body 5 acts on the nut 7 and the pad 8 to press the pad 8 tightly on the slope surface of the rock and soil body, thereby preventing the slope surface of the rock and soil body from undergoing large displacement. Moreover, since the casing 1 is fixedly connected to the anchoring section 3 and when the casing 1 is subjected to an outward pulling force, multiple barb structures 2 open and grasp the hole wall inside the rock and soil body to prevent the casing 1 from moving outward, thereby further increasing the anchoring performance of the device.

[0024] Since the initial lengths and elastic coefficients of the support springs 15 are consistent, the support plate 14 remains parallel to the upper end surface of the anchoring section 3 in the initial state. Therefore, when the pull rope 11 is not pulled, the support plate 14 always remains parallel to the upper end surface of the anchoring section 3, that is, the hook 12 does not rotate vertically on the upper end surface of the anchoring section 3. Therefore, when the nut 7 is tightened without pulling the pull rope 11, the curved anchoring force-bearing body 5 is subjected to longitudinal tension and the first pull ring 13 on the curved anchoring force-bearing body 5 is always connected with the hook 12 on the upper end surface of the anchoring section 3, thus ensuring the anchoring effect of the device.

[0025] When the subway construction shield machine reaches the area where the device is distributed underground, the device needs to be disassembled to prevent it from hindering the construction of the shield machine. At this time, it is necessary to first loosen the nut 7 to disengage the tight connection between the first pull ring 13 on the curved anchoring force-bearing body 5 and the pull hook 12 on the upper end face of the anchor section 3, and then just pull the pull rope 11 outward. Since the second pull ring 16 is fixedly connected to the upper end face of the support plate 14 corresponding to the open end of the pull hook 12, the pull rope 11 pulls the second pull ring 16 on the support plate 14 through the third pull ring 17 to make the support plate 14 corresponding to the open end of the pull hook 12 move upward and overcome the spring tension of the support spring 15 between the support plate 14 and the upper end face of the anchor section 3. 2 is vertically rotated and connected to the upper end surface of the anchoring section 3, and each support plate 14 is fixedly connected to the left and right sides of the hook 12, so the corresponding support plate 14 on the other side of the open end of the corresponding hook 12 moves downward and overcomes the spring elastic force of the support spring 15 between the corresponding support plate 14 and the upper end surface of the anchoring section 3. At this time, the hook 12 is vertically rotated and disconnected from the first pull ring 13 on the curved anchoring force-bearing body 5. Then, the curved anchoring force-bearing body 5 is pulled upward to complete the disassembly of the device. After the disassembly of the device, the remaining casing 1 remains inside the rock and soil body. Since the casing 1 is made of non-metallic material, the casing 1 will not interfere with the construction of the project during the subsequent development and utilization of the underground space.

[0026] The curved anchoring force-bearing body 5 of the device is made of steel strands, so the curved anchoring force-bearing body 5 can be bent at any angle. When the anchoring section of the building anchoring device encounters soft strata and obstacles, the anchoring device needs to bypass the soft soil and obstacle areas for anchoring. At this time, after drilling a curved anchor hole bypassing the soft soil and obstacle areas, the curved anchoring force-bearing body 5 made of steel strands of the device can be used so that the curved anchoring force-bearing body 5 can bypass the soft soil and obstacle areas for anchoring, thereby improving the applicability of the device.

Claims

1. A curved anchoring device that is easy to disassemble, characterized in that: The invention comprises a casing (1), wherein the outer wall of the casing (1) is fixedly connected with a plurality of barb structures (2) uniformly arranged along the axial direction, the casing (1) is extended into the rock and soil body and is fixedly connected with an anchoring section (3) at the bottom end thereof, the upper end surface of the anchoring section (3) is provided with a connection and unlocking mechanism and is connected to a curved anchoring force-bearing body (5) arranged coaxially with the casing (1) through the connection and unlocking mechanism, the end of the curved anchoring force-bearing body (5) exposed from the rock and soil body is fixedly connected with a threaded section (6), the threaded section (6) is threadedly matched with a nut (7), a pad (8) is provided between the nut (7) and the rock and soil body slope, a first through hole (9) matching with the threaded section (6) is provided at the center of the pad (8), a second through hole (10) communicating with the inside of the casing (1) is provided at one side of the center of the pad (8), a pull rope (11) extending into the inside of the casing (1) is provided in the second through hole (10), and the pull rope (11) is connected to the connection and unlocking mechanism; The connection unlocking mechanism comprises a draw hook (12) vertically rotatably connected to the upper end face of the anchoring section (3); one end of the curved anchoring force-bearing body (5) extending into the rock and soil body is fixedly connected to a first draw ring (13) cooperating with the draw hook (12); the draw hook (12) is symmetrically fixedly connected to support plates (14) on both sides; and the lower end faces of the support plates (14) are fixedly connected to support springs (15) connected to the upper end face of the anchoring section (3); The initial lengths and elastic coefficients of the support springs (15) are consistent, so that the support plate (14) remains parallel to the upper end surface of the anchoring section (3) in the initial state; The upper end surface of the support plate (14) is fixedly connected to a second pull ring (16); one end of the pull rope (11) extending into the sleeve (1) is fixedly connected to a third pull ring (17) sleeved with the second pull ring (16); The second pull ring (16) is fixedly connected to the upper end surface of the support plate (14) corresponding to one side of the opening end of the pull hook (12).

2. A conveniently disassembled curved anchoring device according to claim 1, characterized in that: The sleeve (1) is made of non-metallic material.

3. The conveniently disassembled curved anchoring device according to claim 1, characterized in that: The curved anchoring force-bearing body (5) is made of steel strands.

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