A prestressed self-adjusting anchor cable frame beam device

Abstract

The utility model relates to the technical field of anchor cable frame beam, disclose a kind of prestressed self-regulating anchor cable frame beam device, comprising: two anchoring components, anchoring component includes outer tube and inner tube, the lower end of inner tube is frictionally connected with outer tube axial direction, the inner side wall of outer tube rotates and has blocking block, the outer side wall of inner tube is provided with the stop groove corresponding to blocking block one to one, inner tube is movable between first position and second position, at first position, stop groove is located below blocking block, blocking block is embedded in the inner side wall of outer tube, at second position, stop groove is oppositely arranged with blocking block, the lower end of blocking block is embedded in stop groove, to prevent inner tube from outer tube and come out;And for connecting the steel cable of two inner tube upper end.The utility model frictionally connects the design between the outer tube and inner tube of anchoring component, provides prestressed source using this friction force.Can provide sufficient stable anchoring force for side slope and other engineering, effectively solve the problem of insufficient prestress of prior art.

Description

Technical Field

[0001] This utility model relates to the field of anchor cable frame beam technology, and in particular to a prestressed self-adjusting anchor cable frame beam device. Background Technology

[0002] Prestressed self-adjusting anchored cable frame beam devices play a crucial role in modern construction engineering, especially in slope protection and tunnel construction. With the acceleration of urbanization and the continuous advancement of infrastructure construction, more and more engineering projects face complex geological conditions and challenging construction requirements. Prestressed self-adjusting anchored cable frame beam devices can effectively improve slope stability, ensure the safety of the construction process, extend the service life of engineering structures, and reduce later maintenance costs. They provide solid and reliable support for various engineering constructions and are one of the key technologies for ensuring engineering quality and safety, with increasingly broad application prospects.

[0003] In existing technology, patent document CN118087515A, entitled "A Prestressed Self-Adjusting Anchor Cable Frame Beam Structure and Method Thereof," provides a novel solution. The core technology of this solution lies in setting self-tightening mechanisms on both sides of the intersecting sections of the longitudinal and transverse beams of the frame beam body. Connecting steel cables are fixed to the intersecting sections of the longitudinal and transverse beams of the frame beam body. When the tension of the connecting steel cables increases, the anchoring force of the self-tightening mechanism on the slope also increases. However, existing technology also has some obvious drawbacks. This patent mainly relies on the threaded structure between the threaded rod and the inner cylinder to provide prestress. The prestress provided by this structure is relatively small and cannot provide sufficiently stable anchoring force under complex geological conditions. In practical applications, slope stability is affected by various factors, such as soil creep and external environmental disturbances. Relying solely on the threaded structure is insufficient to effectively cope with these complex situations. Once the anchoring force is insufficient, it may lead to the overall loosening of the frame beam anchorage, thereby causing construction safety hazards.

[0004] Therefore, how to change the current situation where the prestressed self-adjusting anchor frame beam device in the prior art provides limited prestress has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The present invention aims to provide a prestressed self-adjusting anchor cable frame beam device to overcome the shortcomings of the above-mentioned situation.

[0006] In order to achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A prestressed self-adjusting anchor cable frame beam device, comprising:

[0008] Two anchoring assemblies, each comprising an outer cylinder and an inner cylinder, the lower end of the inner cylinder being frictionally connected to the outer cylinder along its axial direction. A blocking block is rotatably mounted on the inner sidewall of the outer cylinder, and a stop groove corresponding to each blocking block is provided on the outer sidewall of the inner cylinder. The inner cylinder is movable between a first position and a second position. In the first position, the stop groove is located below the blocking block, and the blocking block is embedded in the inner sidewall of the outer cylinder. In the second position, the stop groove is opposite to the blocking block, and the lower end of the blocking block is embedded in the stop groove to prevent the inner cylinder from detaching from the outer cylinder.

[0009] Steel cables used to connect the upper ends of the two inner cylinders.

[0010] Furthermore, it also includes an elastic element disposed within the inner wall of the outer cylinder, the elastic element being used to drive the lower end of the blocking block to deflect toward the inner cylinder.

[0011] Furthermore, the inner wall of the outer cylinder is provided with a receiving cavity, the blocking block is semi-circular, the axis of the blocking block is perpendicular to the axis of the outer cylinder, the elastic element is a compression spring, one end of the compression spring is connected to the lower end of the blocking block, and the other end of the compression spring is connected to the inner wall of the receiving cavity away from the inner cylinder.

[0012] Furthermore, a notch is provided at the lower end of the side wall of the blocking block away from the inner cylinder, and one end of the compression spring is fixedly inserted into the notch.

[0013] Furthermore, a support frame is provided on the inner wall of the inner cylinder, which is used to increase the positive pressure between the inner cylinder and the outer cylinder.

[0014] Furthermore, the support frame is a polygonal prism, and the inner wall of the inner cylinder is provided with a first strip groove, which extends along the axial direction of the inner cylinder, and the prism of the support frame is embedded in the first strip groove.

[0015] Furthermore, the outer wall of the inner cylinder is provided with a plurality of limiting strips, which are parallel to the axial direction of the inner cylinder and are arranged in a circumferential array along the axial direction of the inner cylinder. The inner wall of the outer cylinder is provided with a second strip groove, and the limiting strips are slidably connected to the second strip groove.

[0016] Furthermore, the openings of the inner cylinder and the outer cylinder are arranged opposite to each other, a connecting ring is fixedly connected to the outer end face of the inner cylinder, and one end of the steel cable is connected to the connecting ring.

[0017] Furthermore, the lower end of the outer cylinder is provided with a tapered portion, and the outer side wall of the outer cylinder is provided with barbs.

[0018] Compared with the prior art, this utility model has at least the following advantages:

[0019] (1) The friction connection design between the outer and inner cylinders of the anchoring assembly allows the inner cylinder to move slowly within the outer cylinder, utilizing this frictional force to provide a source of prestress. This provides sufficient and stable anchoring force for slope and other engineering projects under complex geological conditions, effectively solving the problem of insufficient prestress in existing technologies.

[0020] (2) A support frame is provided on the inner wall of the inner cylinder. The support frame adopts a polygonal prism structure and is embedded in the first strip groove. This design further enhances the positive pressure between the inner cylinder and the outer cylinder, thereby enhancing the friction force, making the movement of the inner cylinder in the outer cylinder more stable, and also indirectly improving the prestress.

[0021] (3) An elastic element is installed between the inner and outer cylinders. The elastic element causes the lower end of the blocking block to deflect towards the inner cylinder. When the inner cylinder is in the second position, the lower end of the blocking block is embedded in the stop groove to prevent the inner cylinder from falling out of the outer cylinder. This locking structure effectively prevents the inner cylinder from moving unexpectedly under external force, ensuring the stability of the anchoring assembly during long-term use. Even when the anchor cable frame beam undergoes large deformation, the inner cylinder can be locked by the cooperation of the blocking block and the stop groove, providing a stable locking force. This solves the problem in the prior art where insufficient anchoring force may lead to loosening of the overall anchoring of the frame beam, thus causing construction safety hazards. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the prestressed self-adjusting anchor frame beam device of this utility model.

[0024] Figure 2 This is a sectional view of the prestressed self-adjusting anchor frame beam device of this utility model;

[0025] Figure 3 This is a schematic diagram of the outer cylinder of this utility model;

[0026] Figure 4 This is a schematic diagram of the inner cylinder of this utility model;

[0027] Figure 5 This is a schematic diagram of the support frame of this utility model;

[0028] Figure 6 This is an assembly diagram of the blocking block and elastic element of this utility model.

[0029] Reference numerals: 1. Outer cylinder; 2. Inner cylinder; 3. Blocking block; 4. Stop groove; 5. Steel cable; 6. Elastic element; 7. Notch; 8. Support frame; 9. First strip groove; 10. Limiting strip; 11. Second strip groove; 12. Connecting ring; 13. Conical part; 14. Barb. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figure 1-2 This utility model provides a prestressed self-adjusting anchor frame beam device, which mainly includes two anchoring components and a steel cable 5 for connecting the upper end of the inner cylinder 2 of the two anchoring components.

[0033] The anchoring assembly mainly consists of an outer cylinder 1 and an inner cylinder 2. The lower end of the inner cylinder 2 is inserted into the outer cylinder 1, forming a friction connection along the axial direction of the outer cylinder 1. This friction connection provides a certain resistance, allowing the inner cylinder 2 to move slowly within the outer cylinder 1. A blocking block 3 is rotatably connected to the inner wall of the outer cylinder 1, while a stop groove 4 corresponding to the blocking block 3 is provided on the outer wall of the inner cylinder 2. The inner cylinder 2 can move between a first position and a second position of the outer cylinder 1. In the first position, the stop groove 4 is located below the blocking block 3, and the blocking block 3 is embedded in the inner wall of the outer cylinder 1. At this time, the blocking block 3 does not obstruct the movement of the inner cylinder 2. In the second position, the stop groove 4 is positioned opposite the blocking block 3, and the lower end of the blocking block 3 is embedded in the stop groove 4, thereby preventing the inner cylinder 2 from detaching from the outer cylinder 1.

[0034] To ensure that the blocking block 3 can effectively engage with the stop groove 4, an elastic element 6 is also provided inside the inner wall of the outer cylinder 1. The function of the elastic element 6 is to drive the lower end of the blocking block 3 to deflect towards the inner cylinder 2. Specifically, referring to the reference... Figure 6The inner wall of the outer cylinder 1 has a receiving cavity, and the blocking block 3 is semi-circular with its axis perpendicular to the axis of the outer cylinder 1. The elastic element 6 is a compression spring, with one end connected to the lower end of the blocking block 3 and the other end connected to the inner wall of the receiving cavity away from the inner cylinder 2. This structure allows the blocking block 3 to fit tightly with the stop groove 4 under the action of elastic force, enhancing the stability of the device. In addition, a notch 7 is provided at the lower end of the side wall of the blocking block 3, and one end of the compression spring is fixedly inserted into the notch 7, further ensuring a firm connection between the compression spring and the blocking block 3.

[0035] Reference Figure 2 and Figure 5 To increase the normal pressure between the inner cylinder 2 and the outer cylinder 1, a support frame 8 is provided on the inner wall of the inner cylinder 2. The support frame 8 adopts a polygonal prism structure, and a first strip groove 9 is provided on the inner wall of the inner cylinder 2, which extends along the axial direction of the inner cylinder 2. The prism of the support frame 8 is embedded in the first strip groove 9. This design not only enhances the normal pressure between the inner cylinder 2 and the outer cylinder 1, thereby increasing the friction, but also makes the movement of the inner cylinder 2 within the outer cylinder 1 more stable.

[0036] In this invention, the first strip groove 9 inside the inner cylinder 2 is open near the end face of the inner cylinder 2, and closed on the other side. During installation, a support frame 8 is first installed inside the first strip groove 9 by embedding. Then, the end plate of the inner cylinder 2 is welded and fixed at the open end of the first strip groove 9 to complete the installation of the support frame 8.

[0037] Reference Figure 3-4 The outer wall of the inner cylinder 2 is also provided with multiple limiting strips 10, which are parallel to the axis of the inner cylinder 2 and arranged in a circumferential array along the axis of the inner cylinder 2. The inner wall of the outer cylinder 1 is provided with a second strip groove 11, and the limiting strips 10 are slidably connected to the second strip groove 11. This limiting structure can effectively prevent the inner cylinder 2 from rotating inside the outer cylinder 1, ensuring that the inner cylinder 2 can only move in the axial direction, thus improving the accuracy and reliability of the device.

[0038] The lower end of the outer cylinder 1 is provided with a tapered portion 13. This tapered structure facilitates the insertion of the outer cylinder 1 into the soil or other fixing medium during installation. The outer side wall of the outer cylinder 1 is also provided with barbs 14. The barbs 14 can increase the friction between the outer cylinder 1 and the surrounding medium, prevent the outer cylinder 1 from loosening under stress, and further improve the anchoring performance of the device.

[0039] Refer again Figure 1The openings of the inner cylinder 2 and the outer cylinder 1 are positioned opposite each other, and a connecting ring 12 is fixedly connected to the outer end face of the inner cylinder 2. One end of the steel cable 5 is connected to the connecting ring 12, and the other end is connected to the connecting ring 12 on the inner cylinder 2 of another anchoring component. In this way, the two anchoring components are connected by the steel cable 5, and the tension of the steel cable 5 can be effectively transmitted to the two anchoring components, thereby realizing the self-adjusting function of prestress.

[0040] Specific operating steps of this utility model:

[0041] Step 1: Install anchor cables: Drill anchor cable holes on the slope and place the anchor cables in the anchor cable holes before filling with concrete.

[0042] Step 2: Install the steel reinforcement mesh: Construct the steel reinforcement mesh for the main frame beam, with anchor cables located at the intersection of the horizontal and vertical beams of the steel reinforcement mesh.

[0043] Step 3: Drill holes for anchoring components: Drill holes on both sides of the intersecting sections of each group of transverse and longitudinal beams (excluding the outer edges) to place the anchoring components. The holes on both sides of each intersecting section are arranged symmetrically with respect to the intersecting section. The installation position of the anchoring components can be referenced from the installation position of the self-tightening mechanism in patent document CN118087515A, entitled "A Prestressed Self-Adjusting Anchor Cable Frame Beam Structure and Method Thereof," as the installation positions are the same in both cases.

[0044] Step 4: Install the anchoring components: First, insert the outer cylinder 1 into the predetermined buried hole and fill it with concrete. Use the tapered part 13 at the lower end of the outer cylinder 1 and the barbs 14 on the outer side wall to ensure that the outer cylinder 1 is firmly inserted and fixed in the concrete.

[0045] Step 5: Install the inner cylinder 2: Insert the inner cylinder 2 into the outer cylinder 1, so that the lower end of the inner cylinder 2 forms a friction connection with the outer cylinder 1. During the installation process, ensure that the limiting strip 10 of the inner cylinder 2 is correctly aligned and slidably connected with the second strip groove 11 of the outer cylinder 1.

[0046] Step 6: Connecting steel cable 5: Secure one end of steel cable 5 to the connecting ring 12 of one anchoring component inner cylinder 2, and connect the other end to the connecting ring 12 of another anchoring component inner cylinder 2. Ensure that steel cable 5 is under proper tension so that it can transmit sufficient tension when needed, and then erect the main formwork of the frame beam and pour the concrete.

[0047] This invention provides additional anchoring points for the frame beam by installing anchoring components on both sides of the transverse and longitudinal beams. When the anchoring force at the main anchoring point of the frame beam decreases due to soil creep, the inner cylinder 2 and the outer cylinder 1 rub against each other, ensuring that there is always anchoring force between the steel cables 5 of the frame beam, thereby improving the installation stability of the frame beam.

[0048] During subsequent maintenance, staff should regularly inspect the anchoring force of steel cable 5 to improve the stability of the device. When it is necessary to increase prestress, the inner cylinder 2 can be pushed into the outer cylinder 1 to increase the tension of steel cable 5; when it is necessary to reduce prestress, the inner cylinder 2 can be pulled out appropriately to reduce the tension of steel cable 5. It should be noted that friction plates can be added between the outer wall of the inner cylinder 2 and the inner wall of the outer cylinder 1 to increase the friction between them. When the inner cylinder 2 is in the first position, sufficient contact area should always be maintained between the inner cylinder 2 and the outer cylinder 1 according to actual needs to ensure sufficient prestress.

[0049] Furthermore, when the anchor cable frame beam undergoes significant deformation, the inner cylinder 2 detaches from the outer cylinder 1. When the blocking block 3 aligns with the stop groove 4, the inner cylinder 2 is locked in place by the cooperation of the blocking block 3 and the stop groove 4, preventing it from moving unexpectedly under external force. At this time, the elastic element 6 (compression spring) ensures that the blocking block 3 is tightly embedded in the stop groove 4, providing a stable locking force.

[0050] Through the above implementation methods and operating steps, the prestressed self-adjusting anchor cable frame beam device of this utility model can effectively provide stable anchoring force, and can flexibly adjust the prestress according to actual needs. It is suitable for various complex engineering environments and has broad application prospects.

[0051] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0052] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A prestressed self-adjusting anchor cable frame beam device, characterized in that, include: Two anchoring components, each comprising an outer cylinder (1) and an inner cylinder (2), the lower end of the inner cylinder (2) being rubbed against the outer cylinder (1) along its axial direction. A blocking block (3) is rotatably mounted on the inner wall of the outer cylinder (1), and a stop groove (4) corresponding to the blocking block (3) is provided on the outer wall of the inner cylinder (2). The inner cylinder (2) is movable between a first position and a second position. In the first position, the stop groove (4) is located below the blocking block (3), and the blocking block (3) is embedded in the inner wall of the outer cylinder (1). In the second position, the stop groove (4) is positioned opposite to the blocking block (3), and the lower end of the blocking block (3) is embedded in the stop groove (4) to prevent the inner cylinder (2) from detaching from the outer cylinder (1). Steel cables (5) are used to connect the upper ends of the two inner cylinders (2).

2. The prestressed self-adjusting anchor cable frame beam device according to claim 1, characterized in that, It also includes an elastic element (6) disposed in the inner wall of the outer cylinder (1), the elastic element (6) being used to drive the lower end of the blocking block (3) to deflect toward the inner cylinder (2).

3. The prestressed self-adjusting anchor cable frame beam device according to claim 2, characterized in that, The inner wall of the outer cylinder (1) is provided with a receiving cavity. The blocking block (3) is semi-circular. The axis of the blocking block (3) is perpendicular to the axis of the outer cylinder (1). The elastic element (6) is a compression spring. One end of the compression spring is connected to the lower end of the blocking block (3), and the other end of the compression spring is connected to the inner wall of the receiving cavity away from the inner cylinder (2).

4. The prestressed self-adjusting anchor cable frame beam device according to claim 3, characterized in that, A notch (7) is provided at the lower end of the side wall of the blocking block (3) away from the inner cylinder (2), and one end of the compression spring is fixedly inserted into the notch (7).

5. The prestressed self-adjusting anchor cable frame beam device according to claim 2, characterized in that, The inner wall of the inner cylinder (2) is provided with a support frame (8), which is used to increase the positive pressure between the inner cylinder (2) and the outer cylinder (1).

6. The prestressed self-adjusting anchor cable frame beam device according to claim 5, characterized in that, The support frame (8) is a polygonal prism, and the inner wall of the inner cylinder (2) is provided with a first strip groove (9). The first strip groove (9) extends along the axial direction of the inner cylinder (2), and the prism of the support frame (8) is embedded in the first strip groove (9).

7. The prestressed self-adjusting anchor cable frame beam device according to claim 1, characterized in that, The outer wall of the inner cylinder (2) is provided with a plurality of limiting strips (10), which are parallel to the axial direction of the inner cylinder (2) and are arranged in a circumferential array along the axial direction of the inner cylinder (2). The inner wall of the outer cylinder (1) is provided with a second strip groove (11), and the limiting strips (10) are slidably connected to the second strip groove (11).

8. The prestressed self-adjusting anchor cable frame beam device according to claim 1, characterized in that, The openings of the inner cylinder (2) and the outer cylinder (1) are arranged opposite to each other. A connecting ring (12) is fixedly connected to the outer end face of the inner cylinder (2). One end of the steel cable (5) is connected to the connecting ring (12).

9. The prestressed self-adjusting anchor frame beam device according to any one of claims 1 to 8, characterized in that, The lower end of the outer cylinder (1) is provided with a tapered part (13), and the outer side wall of the outer cylinder (1) is provided with barbs (14).

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