Anchoring device

Abstract

The utility model belongs to the technical field of slope reinforcement, and discloses an anchoring device which comprises an anchoring part, an inserting part, an operation assembly and a locking part, and the operation assembly comprises a movable part and an operation part which are fixedly connected. When the plug connector is in the first state, the plug connector partially penetrates out of the hollow structure of the anchoring part through the first through hole, the contact area of the anchoring device and the soil layer is increased, and the anchoring effect is enhanced. The locking piece can lock the inserting piece in the first state, and the situation that at least part of the inserting piece retracts into the anchoring piece, and consequently the anchoring effect is reduced is prevented. When the plug connector is in the second state, the plug connector retracts into the anchoring part through the first through hole, the overall occupied space of the anchoring device is reduced, and the portability and the transportation flexibility of the anchoring device are improved when the anchoring device is not put into use. The operation part is located on the outer side of the anchoring part, the movable part can achieve switching of the inserting part between the first state and the second state through the operation part, and the operation process of an operator on the operation part is easy to achieve.

Description

Technical Field

[0001] This utility model relates to the field of slope reinforcement technology, and in particular to an anchoring device. Background Technology

[0002] In slope reinforcement projects, anchor bolts, as important tension members that penetrate deep into the soil, are connected at one end to the engineering structure and at the other end into the soil to achieve the effect of slope reinforcement. Traditional construction techniques usually use the direct hammering method to implant anchor bolts into the soil, which is simple to operate, but the tensile strength of anchor bolts is limited and it is difficult to effectively resist large lateral earth pressures.

[0003] The related technology proposes a support structure equipped with tensile anchor cables. The tensile anchor cables include anchor sleeves, locking rods, and limiting components. The locking rods are coaxially rotatably connected inside the anchor sleeves. The limiting components include multiple tensile rods. The locking rods are used to drive the multiple tensile rods to slide synchronously outward from the sliding holes opened on the anchor sleeves, so that the ends of the tensile rods can be inserted into the soil, thereby enhancing the pull-out resistance between the tensile anchor cables and the soil.

[0004] However, after the locking mechanism drives the tensile member into the soil, the aforementioned support structure requires the installation of a steel mesh and subsequent pouring of concrete on the exposed portion of the tensile anchor cable to ensure that the tensile anchor cable forms an integral unit with the slope. However, before the concrete has cured, the locking rod may rotate due to the continuous lateral earth pressure, thus reducing the overall anchoring effect of the tensile anchor cable. Utility Model Content

[0005] The purpose of this invention is to provide an anchoring device that can prevent rotation after anchoring is completed, thus ensuring the anchoring effect.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model provides an anchoring device, comprising:

[0008] An anchor has a hollow structure, and a first through hole is provided on the wall of the hollow structure.

[0009] The connector is movably disposed within the hollow structure, and the connector has a first state of extending out of the hollow structure through the first through hole and a second state of retracting into the hollow structure through the first through hole.

[0010] The operating component includes a fixedly connected movable part and an operating part. The movable part passes through the hollow structure and is movably connected to the plug-in part. The operating part is located outside the anchor. The movable part can switch the plug-in part between a first state and a second state through the operating part.

[0011] The locking element is configured to lock the connector in a first state.

[0012] Optionally, the operating member has a second through hole, and the anchor is connected to a fixing member. The fixing member has an opening. When the plug is switched to the first state, the second through hole can be axially aligned with the opening, so that the locking member can pass through the second through hole and the opening.

[0013] Specifically, a gear is fixedly provided on the outer periphery of the movable part, and the plug-in part is provided with a tooth groove that meshes with the gear. The operating part can drive the gear to rotate clockwise so that the plug-in part switches to the first state.

[0014] More specifically, the operating component includes a fixedly connected turntable and a mounting boss. A second through hole is provided in the mounting boss. Rotating the turntable can drive the gear to rotate in a clockwise direction. The turntable is provided with a guide groove. The mounting boss is located at one end of the guide groove. The fixing component can slide and engage with the guide groove.

[0015] Optionally, the movable part is slidably connected to the plug-in and is provided with a pushing part. When the operating part slides away from the anchor, the pushing part can push the plug-in part out of the hollow structure.

[0016] Optionally, the anchoring device also includes a mounting frame, which is fixedly installed on the inner wall of the hollow structure, and the plug-in is slidably connected to the mounting frame.

[0017] Specifically, of the mounting bracket and the connector, one is provided with a limiting protrusion, and the other is provided with a limiting groove that slides with the limiting protrusion.

[0018] Optionally, the anchor includes a protective cover, a connecting part, and an anchoring part. A hollow structure is disposed in the connecting part, the hollow structure has an opening, a first through hole is opened in the connecting part, the protective cover is detachably disposed at the opening, and the anchoring part is fixedly disposed at the end of the connecting part away from the opening.

[0019] Optionally, the anchoring device further includes a limiting member, which is disposed at the connection between the connecting part and the anchoring part, and the movable part is movably connected to the limiting member.

[0020] Optionally, the connector has a plug end, and the cross-sectional area of ​​the plug end gradually decreases along the direction in which the connector extends out of the hollow structure.

[0021] The beneficial effects of this utility model are:

[0022] This invention provides an anchoring device. When the connector is in the first state, it protrudes through the first through hole into the hollow structure of the anchor, increasing the contact area between the anchoring device and the surrounding soil and improving the anchoring effect. A locking component secures the connector in the first state, preventing it from retracting at least partially into the anchor due to lack of timely fixing, thus ensuring the overall anchoring effect. When the connector is in the second state, it retracts into the hollow structure of the anchor through the first through hole, reducing the overall space occupied by the anchor and improving its portability and transportation flexibility when not in use. The operating component is located on the outside of the anchor, and the movable component allows for switching the connector between the first and second states via the operating component, making operation easy for the operator. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the anchoring device described in an embodiment of the present invention;

[0024] Figure 2 This is a partial structural schematic diagram of the anchoring device described in an embodiment of this utility model;

[0025] Figure 3 This is a cross-sectional view of the anchoring device described in this embodiment of the present invention from a first perspective;

[0026] Figure 4 This is a cross-sectional view of the anchoring device described in this embodiment of the present invention from a second perspective.

[0027] In the picture:

[0028] 1. Anchor; 11. Protective cover; 111. Operating handle; 12. Connecting part; 13. Anchoring part; 14. First through hole; 15. Fixing element; 151. Opening;

[0029] 2. Connector; 21. Toothed groove; 22. Connector end; 23. First limiting protrusion; 24. Second limiting protrusion;

[0030] 3. Operating components; 31. Moving parts; 311. Gear; 32. Operating components; 321. Turntable; 3211. Guide groove; 3212. Operating groove; 322. Mounting boss; 323. Second through hole;

[0031] 4. Locking components;

[0032] 5. Mounting bracket; 51. First slot; 52. Second slot;

[0033] 6. Limiting components. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] When a slope is fractured or the soil layer is weak, a certain number of anchor bolts can be driven in. One end of the anchor bolt is connected to the engineering structure, and the other end extends into the soil layer, which can reinforce the slope. Currently, most anchor bolts are installed using the direct hammering method, which is simple to operate, but the contact area between the anchor bolt and the soil layer is small, the tensile strength of the anchor bolt is limited, it is difficult to effectively resist large lateral earth pressure, and the anchoring stability is poor.

[0039] Example 1

[0040] To improve anchoring stability, such as Figures 1-4As shown, this embodiment provides an anchoring device, including an anchor 1, a connector 2, an operating component 3, and a locking component 4. The operating component 3 includes a movable component 31 and an operating component 32 fixedly connected. The anchor 1 has a hollow structure with a first through hole 14 on its wall. The connector 2 is movably disposed within the hollow structure, having a first state where it partially protrudes from the hollow structure through the first through hole 14 and a second state where it retracts into the hollow structure through the first through hole 14. The movable component 31 is inserted into the hollow structure and movably connected to the connector 2. The operating component 32 is located outside the anchor 1, and the movable component 31 can switch the connector 2 between the first and second states via the operating component 32. The locking component 4 is configured to lock the connector 2 in the first state.

[0041] When the connector 2 is in the first state, it partially protrudes from the hollow structure of the anchor 1 through the first through hole 14, increasing the contact area between the anchoring device and the surrounding soil layer and improving the anchoring effect. The locking member 4 can lock the connector 2 in the first state, preventing the connector 2 from being at least partially retracted into the anchor 1. By setting the locking member 4, the connector 2 can always be kept at the position of its maximum insertion distance into the surrounding soil layer, so that the anchoring device is always in the optimal anchoring state, and the anchoring device can exert maximum tensile and pull-out resistance, thus enhancing the anchoring stability and reliability. When the connector 2 is in the second state, it retracts into the hollow structure of the anchor 1 through the first through hole 14, reducing the overall space occupied by the anchoring device and improving its portability and transportation flexibility when not in use. The operating component 32 is located on the outside of the anchor 1, and the movable component 31 can switch the connector 2 between the first and second states through the operating component 32. The state switching process of the connector 2 can be achieved by the operator operating the operating component 32, which is relatively easy. The anchor 1 has a hollow structure, which can reserve sufficient space for the movement of the movable component 31 and the connector 2, effectively avoiding interference between the components. In this embodiment, the connector 2 has a plug-in end 22. Along the direction in which the connector 2 passes through the hollow structure, the cross-sectional area of ​​the plug-in end 22 gradually decreases. Setting this plug-in end 22 can reduce the difficulty for the connector 2 to penetrate the soil layer through the first through hole 14.

[0042] To further improve the anchoring reliability of the anchoring device, multiple plug-in pieces 2 are movably installed within the hollow structure of the anchor 1, and corresponding first through holes 14 are formed on the wall of the hollow structure, one for each plug-in piece 2. By driving the operating mechanism 32, the operator can make each plug-in piece 2 partially protrude through its corresponding first through hole 14 into the hollow structure of the anchor 1. The multiple plug-in pieces 2 further increase the contact area between the anchoring device and the soil layer, improving the tensile and pull-out resistance of the anchoring device.

[0043] In this embodiment, the operating member 32 has a second through hole 323, and the anchor 1 is connected to a fixing member 15. The fixing member 15 has an opening 151. When the plug-in member 2 is switched to the first state, the second through hole 323 can be axially aligned with the opening 151, so that the locking member 4 can pass through the second through hole 323 and the opening 151. At this time, the locking member 4 can lock the operating member 32 and the fixing member 15, so as to limit the plug-in member 2 from retracting at least partially into the anchor 1 under the lateral pressure of the soil layer. The setting position of the fixing member 15 is closely related to the protrusion distance of the plug-in member 2. When the second through hole 323 is axially aligned with the opening 151 of the fixing member 15, the plug-in member 2 can reach its maximum protrusion length without detaching from the anchor 1, thereby achieving the optimal anchoring effect of the anchoring device. The fixing member 15 provides a reference for the operator to guide the movement path of the operating member 32, thus avoiding the situation where the insertion length of the plug 2 is insufficient and cannot achieve the best anchoring effect, and also avoiding the situation where the plug 2 completely detaches from the anchor 1 and cannot improve the anchoring effect of the anchoring device.

[0044] In this embodiment, as Figure 1 and Figure 2 As shown, a gear 311 is fixedly arranged on the outer periphery of the movable part 31, and the plug-in part 2 is provided with a toothed groove 21 that meshes with the gear 311. The operating part 32 can drive the gear 311 to rotate clockwise, so that the plug-in part 2 switches to the first state. That is, rotating the operating part 32 clockwise can make the plug-in part 2 partially pass through the hollow structure of the anchor 1. The locking part 4 can lock the plug-in part 2 in the first state by passing through the second through hole 323 and the opening 151, restricting the operating part 32 from rotating counterclockwise. The meshing transmission between the gear 311 and the toothed groove 21 has higher precision and stability, can accurately control the distance of the plug-in part 2 passing through or retracting from the anchor 1, and has a low risk of movement jamming. When there are multiple plug-in parts 2, correspondingly, multiple gears 311 are coaxially arranged on the outer periphery of the movable part 31. In this embodiment, when one gear 311 rotates, it can drive the plug-in parts 2 located on both sides of the gear 311 to simultaneously pass through the hollow structure.

[0045] More specifically, the operating component 32 includes a fixedly connected turntable 321 and a mounting boss 322. A second through hole 323 is formed in the mounting boss 322. Rotating the turntable 321 can drive the gear 311 to rotate clockwise. The turntable 321 is provided with a guide groove 3211, and the mounting boss 322 is located at one end of the guide groove 3211. The fixing member 15 and the guide groove 3211 are slidably engaged. When the turntable 321 is rotated clockwise, the guide groove 3211 will change position relative to the fixing member 15, and the fixing member 15 can slide within the guide groove 3211, improving the rotational stability of the turntable 321. The guide groove 3211 has a first end and a second end, and the mounting boss 322 is located at the first end of the guide groove 3211. When the turntable 321 rotates clockwise until the fixing member 15 slides to the first end of the guide groove 3211, the second through hole 323 and the opening 151 are axially aligned, and the locking member 4 can pass through the second through hole 323 and the opening 151 to lock the operating member 32 and the fixing member 15. When the turntable 321 rotates counterclockwise until the fixing member 15 is located at the second end of the guide groove 3211, the plug-in member 2 is completely retracted into the anchor 1, improving transportation convenience. The guide groove 3211 restricts the rotation path of the operating member 32, reduces the difficulty of operation, and eliminates the need to repeatedly adjust the rotation angle of the turntable 321. When the operating member 32 is rotated clockwise until it can no longer rotate, the corresponding plug-in member 2 switches to the first state, and the plug-in member 2 extends to the maximum distance; when the operating member 32 is rotated counterclockwise until it can no longer rotate, the plug-in member 2 can be completely retracted into the anchor 1. To facilitate the rotation of the turntable 321, multiple operating slots 3212 can be provided on the turntable 321 to provide the operator with operating force points and improve the ease of operation.

[0046] The locking element 4 can be a pin, with one end inserted sequentially into the second through hole 323 and the opening 151, and the outer diameter of the other end larger than the inner diameter of the second through hole 323 and the opening 151. The locking element 4 can also be a bolt, with the bolt shank inserted sequentially into the second through hole 323 and the opening 151, and the bolt head sealing the upper opening of the second through hole 323. The locking element 4 can also be any other component capable of achieving the locking process between the operating element 32 and the fixing element 15; this embodiment does not impose excessive limitations on this.

[0047] In this embodiment, the anchoring device further includes a mounting frame 5, which is fixedly disposed on the inner wall of the hollow structure of the anchor 1, and the connector 2 is slidably connected to the mounting frame 5. The mounting frame 5 can limit the movement path of the connector 2 as it extends and retracts from the anchor 1, and can also simplify the initial assembly process of the connector 2 and the anchor 1, and provide stable support for the connector 2.

[0048] Specifically, the mounting bracket 5 can be a plate-like structure. Of the mounting bracket 5 and the connector 2, one is provided with a limiting protrusion, and the other is provided with a limiting groove that slides with the limiting protrusion. The limiting groove is strip-shaped. The limiting groove can limit the extreme sliding distance of the connector 2 and prevent the connector 2 from completely disengaging from the anchor 1.

[0049] like Figure 2 and Figure 3 As shown, the mounting bracket 5 can also be L-shaped to prevent the connector 2 from wobbling along the length and width of the mounting bracket 5 during movement. To limit the sliding distance of the connector 2 and improve sliding stability, a first strip groove 51 can be formed on the vertical surface of the mounting bracket 5, and a second strip groove 52 can be formed on the horizontal surface of the mounting bracket 5. Correspondingly, a first limiting protrusion 23 that slides with the first strip groove 51 is provided on the side of the connector 2, and a second limiting protrusion 24 that slides with the second strip groove 52 is provided on the bottom.

[0050] Optionally, to improve transmission accuracy and motion smoothness, a toothed structure can be provided at the bottom of the connector 2, and a rack that can mesh with the toothed structure can be provided on the horizontal surface of the mounting bracket 5.

[0051] In this embodiment, as Figure 1 , Figure 3 and Figure 4 As shown, the anchor 1 includes a protective cover 11, a connecting part 12, and an anchoring part 13. A hollow structure is disposed in the connecting part 12, and a first through hole 14 is opened in the connecting part 12. The hollow structure of the connecting part 12 has an opening, and the protective cover 11 is detachably disposed at the opening. The anchoring part 13 is fixedly disposed at the end of the connecting part 12 away from the opening. The protective cover 11 and the connecting part 12 can be connected by a snap-fit ​​or a threaded connection, etc. The protective cover 11 can prevent surrounding soil and other debris from entering the interior of the connecting part 12 after the anchoring device enters the soil layer, thus preventing it from affecting the movement of the operating part 32 and the expansion and contraction of the plug-in part 2. The detachable protective cover 11 also facilitates the inspection and maintenance of the components inside the hollow structure. To accommodate the movement needs before the anchoring device is installed, an operating handle 111 can be provided at the upper end of the protective cover 11 for easy handling by the operator. The operating handle 111 can be arc-shaped. Understandably, the end of the anchoring part 13 away from the connecting part 12 is tapered to reduce the resistance encountered when the anchoring device is inserted into the soil layer, thus facilitating the anchoring operation.

[0052] Specifically, the anchoring device also includes a limiting member 6, which is disposed at the connection between the connecting part 12 and the anchoring part 13. The movable member 31 is movably connected to the limiting member 6. In this embodiment, the movable member 31 is rotatably connected to the limiting member 6, and a second limiting hole is provided at the center of the limiting member 6. When the operating member 32 rotates, the movable member 31 fixed thereto can rotate and engage with the second limiting hole. The limiting member 6 can restrict the rotation trajectory of the movable member 31, preventing the insertion member 2 from jamming or wearing due to excessive positional change of the movable member 31 when the operating member 32 rotates, thereby weakening the anchoring effect.

[0053] Example 2

[0054] This embodiment provides an anchoring device, and its components that are the same as or corresponding to those in Embodiment 1 are referred to using the same or corresponding reference numerals as those in Embodiment 1. For simplicity, only the differences between this embodiment and Embodiment 1 are described below.

[0055] The difference between this embodiment and Embodiment 1 is that:

[0056] The movable part 31 is slidably connected to the plug-in part 2 and is provided with a pushing part. When the operating part 32 slides away from the anchor 1, the pushing part can push the plug-in part 2 out of the hollow structure of the anchor 1, so that the plug-in part 2 switches to the first state, and the locking part 4 can lock the plug-in part 2 in the first state. The sliding engagement of the movable part 31 and the plug-in part 2 has low cost and simple operation. The plug-in part 2 can be pushed out of the hollow structure of the anchor 1 simply by pulling the operating part 32 upward. It can be understood that the cross-sectional area of ​​the pushing part gradually decreases along the direction in which the movable part 31 slides out of the anchor 1.

[0057] In this embodiment, the movable component 31 is slidably connected to the limiting component 6. The limiting component 6 has a second limiting hole at its center. When the operating component 32 slides, the movable component 31, which is fixedly connected to it, can slide and engage with the second limiting hole. The limiting component 6 restricts the sliding path of the movable component 31, preventing radial displacement of the movable component 31 when the operating component 32 slides. It also limits the jamming or wear of the connector 2 caused by excessive positional changes of the movable component 31, thus ensuring the anchoring effect of the anchoring device.

[0058] When the movable part 31 and the plug-in part 2 are slidably connected, a first through hole can be provided on the movable part 31 and a second through hole can be provided on the fixed part 15. The axes of the first through hole and the second through hole are both parallel to the horizontal plane. The locking part 4 can be inserted into the first through hole and the second through hole to lock the movable part 31 and the fixed part 15, thereby restricting the sliding of the operating part 32 in the direction close to the anchor 1 and preventing the plug-in part 2 from retracting into the anchor 1. The locking part 4 can also be an elastic buckle that can be engaged with the movable part 31. After the operating part 32 slides away from the anchor 1 to the maximum distance the plug-in part 2 has passed through, the locking part 4 is placed between the protective cover 11 and the operating part 32 and engaged with the movable part 31 to lock the operating part 32. The locking part 4 can be U-shaped.

[0059] It is understood that the above embodiments can be selectively combined as needed, provided that the combination of these technical features does not contradict each other. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. These embodiments not explicitly written should also be considered to be within the scope of this specification.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. Anchoring device, characterized in that, include: Anchor (1), the anchor (1) has a hollow structure, and a first through hole (14) is provided on the wall surface of the hollow structure; The connector (2) is movably disposed within the hollow structure. The connector (2) has a first state in which it partially protrudes from the hollow structure through the first through hole (14) and a second state in which it retracts into the hollow structure through the first through hole (14). The operating component (3) includes a movable part (31) and an operating part (32) that are fixedly connected. The movable part (31) passes through the hollow structure and is movably connected to the plug-in part (2). The operating part (32) is located outside the anchor (1). The movable part (31) can switch the plug-in part (2) between the first state and the second state through the operating part (32). The locking member (4) is configured to lock the connector (2) in the first state.

2. The anchoring device according to claim 1, characterized in that, The operating member (32) has a second through hole (323), the anchor (1) is connected to a fixing member (15), the fixing member (15) has an opening (151), when the plug (2) is switched to the first state, the second through hole (323) can be axially aligned with the opening (151) so that the locking member (4) can pass through the second through hole (323) and the opening (151).

3. The anchoring device according to claim 2, characterized in that, A gear (311) is fixedly provided on the outer periphery of the movable part (31), and the plug-in part (2) is provided with a tooth groove (21) that meshes with the gear (311). The operating part (32) can drive the gear (311) to rotate clockwise so that the plug-in part (2) switches to the first state.

4. The anchoring device according to claim 3, characterized in that, The operating component (32) includes a fixedly connected turntable (321) and a mounting boss (322). The second through hole (323) is opened on the mounting boss (322). Rotating the turntable (321) can drive the gear (311) to rotate in a clockwise direction. The turntable (321) is provided with a guide groove (3211). The mounting boss (322) is located at one end of the guide groove (3211). The fixing component (15) can slide and cooperate with the guide groove (3211).

5. The anchoring device according to claim 1, characterized in that, The movable part (31) is slidably connected to the plug-in part (2) and is provided with a pushing part. When the operating part (32) slides in a direction away from the anchor (1), the pushing part can push the plug-in part (2) out of the hollow structure.

6. The anchoring device according to any one of claims 1-5, characterized in that, The anchoring device also includes a mounting frame (5), which is fixedly disposed on the inner wall of the hollow structure, and the plug-in (2) is slidably connected to the mounting frame (5).

7. The anchoring device according to claim 6, characterized in that, Of the mounting bracket (5) and the connector (2), one is provided with a limiting protrusion, and the other is provided with a limiting groove that slides with the limiting protrusion.

8. The anchoring device according to any one of claims 1-5, characterized in that, The anchor (1) includes a protective cover (11), a connecting part (12) and an anchoring part (13). The hollow structure is disposed on the connecting part (12) and has an opening. The first through hole (14) is opened on the connecting part (12). The protective cover (11) is detachably disposed at the opening. The anchoring part (13) is fixedly disposed at the end of the connecting part (12) away from the opening.

9. The anchoring device according to claim 8, characterized in that, The anchoring device further includes a limiting member (6), which is disposed at the connection between the connecting part (12) and the anchoring part (13), and the movable part (31) is movably connected to the limiting member (6).

10. The anchoring device according to any one of claims 1-5, characterized in that, The connector (2) has a connector end (22), and the cross-sectional area of ​​the connector end (22) gradually decreases along the direction in which the connector (2) extends out of the hollow structure.

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