Pre-stressed anchor cable equal-stress tensioning equipment

Abstract

The utility model belongs to the technical field of pre-stressed anchor cables, and particularly relates to pre-stressed anchor cable equal-stress tensioning equipment which comprises hydraulic equipment, a handle fixedly installed on the outer side of the hydraulic equipment, a piston column arranged in the hydraulic equipment, an anchorage device arranged at one end of the piston column, an anchorage device hole formed in the anchorage device, and an anchor cable penetrating through the hydraulic equipment. A clamping piece is arranged outside the anchor cable. The anchorage device and the anchorage device hole are arranged at the two ends of the hydraulic equipment, the clamping piece is arranged in the anchorage device hole at one end, the clamping piece is of a conical structure, and the openings are formed in the periphery of the clamping piece, so that when the anchor cable is pulled by controlling the piston column, the anchor cable can be effectively fixed and clamped through the clamping piece; the pulling stability of the anchor cable is improved, better work and use are facilitated, the anchor device is movably connected with the hydraulic equipment and the piston column, so that the anchor device can be conveniently and rapidly disassembled and assembled, and different anchor devices can be conveniently replaced for work and use according to anchor cables with different diameter sizes.

Description

Technical Field

[0001] This utility model relates to the field of prestressed anchor cable technology, specifically to prestressed anchor cable tensioning equipment. Background Technology

[0002] Anchor cables, in the context of suspension bridges, are steel strands that are divided into multiple strands and anchored into anchor bolts when securing the main cable through side openings. Anchor cables are prestressed steel strands that pass through the slope's sliding surface, with one end fixed to the slope surface and the other end anchored within stable rock mass. They directly generate anti-sliding resistance on the sliding surface, increasing frictional resistance and compressing the structural surface to improve the overall integrity of the slope rock mass. This fundamentally improves the rock mass's mechanical properties, effectively controls displacement, and promotes stability, achieving the goal of managing bedding planes, landslides, and unstable rocks. Prestressed anchor cables are cable-like supports anchored within the rock mass using prestressing methods, used for slope reinforcement. The anchor cable is anchored into the rock mass through a hole in the weak structural surface of the rock mass via an anchor head, connecting the sliding body to the stable rock layer. This alters the stress state of the slope rock mass, improving the integrity and strength of the unstable rock mass.

[0003] The existing technology has the following shortcomings: The existing technology, disclosed in CN202420130091.X, discloses a prestressed anchor cable tensioning device, comprising: an anchor plate connected to the end of an anchor cable; a hollow hydraulic jack located outside the anchor cable, positioned between the anchor plate and a slope; an angle adjustment component located between the hollow hydraulic jack and the slope, used to adjust the axial angle of the hollow hydraulic jack; and a washer installed between the angle adjustment component and the hollow hydraulic jack.

[0004] While the aforementioned equipment allows for adjustment of its support angle for convenient operation, it is inconvenient to monitor the tension during operation, making it difficult to control the tension and ensure that the prestress value required by the design is met, thus limiting its practical application. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides stress tensioning equipment such as prestressed anchor cables to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a prestressed anchor cable tensioning device, including a hydraulic device, a handle fixedly installed on the outside of the hydraulic device, a piston column provided inside the hydraulic device, an anchor provided at one end of the piston column, an anchor hole provided inside the anchor, an anchor cable passing through the hydraulic device, a clamping plate provided outside the anchor cable, and a detection mechanism provided inside the hydraulic device.

[0007] As a preferred embodiment of this utility model, two handles are provided and are symmetrically fixedly installed on the outside of the hydraulic equipment.

[0008] As a preferred embodiment of this utility model, one end of the piston rod is provided with an installation groove, and the anchor is movably connected to the piston rod through the installation groove.

[0009] As a preferred embodiment of this utility model, the anchor is made of titanium alloy material, and two anchors are provided, which are symmetrically distributed at both ends of the hydraulic equipment.

[0010] As a preferred embodiment of this utility model, the anchor holes are provided in a plurality of manner, and the anchor holes are evenly and symmetrically distributed inside the anchor.

[0011] As a preferred embodiment of this utility model, the clamping plate is configured in a conical shape, the inner diameter of the clamping plate is adapted to the outer diameter of the anchor cable, the anchor cable is movably inserted into the clamping plate, the outer diameter of one end of the clamping plate is adapted to the inner diameter of the anchor hole, and one end of the clamping plate is movably inserted into the anchor hole.

[0012] As a preferred technical solution of this utility model, the detection mechanism includes a movable groove, a sliding block, a pressure-sensitive spring, and a pressure sensor. The inner wall of the hydraulic equipment is provided with a movable groove, and a sliding block is provided inside the movable groove. A pressure-sensitive spring is provided at one end of the sliding block, and a pressure sensor is fixedly installed at one end of the inner wall of the movable groove. The outer diameter of the sliding block is adapted to the inner diameter of the movable groove. The sliding block is slidably connected to the movable groove, and the bottom of the sliding block is fixedly connected to the piston column.

[0013] Compared with the prior art, this utility model provides a stress tensioning device for prestressed anchor cables, which has the following beneficial effects:

[0014] 1. This prestressed anchor cable tensioning device features anchors and anchor holes at both ends of a hydraulic system. A clamping plate is installed inside the anchor hole at one end. Because the clamping plate has a conical structure with openings around its circumference, it effectively clamps and secures the anchor cable when the piston is pulled, improving the stability of the cable movement and facilitating better operation. The anchors are movably connected to the hydraulic system and piston, allowing for quick assembly and disassembly. This also facilitates changing anchors for different diameters of anchor cables, enhancing the device's structural practicality.

[0015] 2. This prestressed anchor cable tensioning device uses a combination of a movable groove, a sliding block, a pressure-sensitive spring, and a pressure sensor. During the process of pulling the anchor cable through the piston column, the sliding block can be moved and adjusted, thereby squeezing the pressure sensor through the pressure-sensitive spring. This facilitates the detection of the pulling force on the anchor cable, making it easy to control the tension and ensure that the prestress value required by the design is achieved, thus facilitating better operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the piston column extension structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the clamping plate structure of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the hydraulic equipment of this utility model.

[0020] In the diagram: 1. Hydraulic equipment; 2. Handle; 3. Piston rod; 4. Anchor; 5. Anchor hole; 6. Anchor cable; 7. Clamping plate; 8. Detection mechanism; 801. Movable groove; 802. Sliding block; 803. Pressure-sensitive spring; 804. Pressure sensor. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4In this implementation plan: the prestressed anchor cable tensioning equipment includes a hydraulic device 1, a handle 2 fixedly installed on the outside of the hydraulic device 1, a piston column 3 inside the hydraulic device 1, an anchor 4 at one end of the piston column 3, an anchor hole 5 inside the anchor 4, an anchor cable 6 passing through the inside of the hydraulic device 1, a clamping plate 7 outside the anchor cable 6, and a detection mechanism 8 inside the hydraulic device 1.

[0023] Reference Figure 1 and Figure 2 There are two handles 2, which are symmetrically and fixedly installed on the outside of the hydraulic equipment 1;

[0024] Specifically: It is easy to hold and convenient for work use.

[0025] Reference Figure 1 and Figure 4 One end of the piston rod 3 is provided with an installation groove, and the anchor 4 is movably connected to the piston rod 3 through the installation groove;

[0026] Specifically: It is easy to disassemble and install, and convenient to replace and use.

[0027] In this embodiment, the anchor 4 is made of titanium alloy material, and there are two anchors 4, which are symmetrically distributed at both ends of the hydraulic device 1; there are multiple anchor holes 5, which are evenly and symmetrically distributed inside the anchor 4.

[0028] Specifically, it can improve the structural strength and facilitate the pulling of the through anchor cable 6.

[0029] Reference Figure 1 and Figure 3 The clamping plate 7 is set in a conical shape. The inner diameter of the clamping plate 7 is adapted to the outer diameter of the anchor cable 6. The anchor cable 6 and the clamping plate 7 are movably inserted. The outer diameter of one end of the clamping plate 7 is adapted to the inner diameter of the anchor hole 5. The clamping plate 7 is movably inserted into the anchor hole 5.

[0030] Specifically: It facilitates the fixing and clamping of anchor cable 6, improving its pulling stability.

[0031] Reference Figure 4 The detection mechanism 8 includes a movable groove 801, a sliding block 802, a pressure-sensitive spring 803, and a pressure sensor 804. The inner wall of the hydraulic device 1 is provided with a movable groove 801, and a sliding block 802 is provided inside the movable groove 801. A pressure-sensitive spring 803 is provided at one end of the sliding block 802, and a pressure sensor 804 is fixedly installed at one end of the inner wall of the movable groove 801. The outer diameter of the sliding block 802 is adapted to the inner diameter of the movable groove 801. The sliding block 802 is slidably connected to the movable groove 801, and the bottom of the sliding block 802 is fixedly connected to the piston column 3.

[0032] Specifically: It facilitates the detection of the tension in the anchor cable 6, thereby making it easier to control the magnitude of the tension.

[0033] The working principle and usage process of this utility model are as follows: The operator passes the anchor cable 6 through the anchor 4 and anchor hole 5 at one end of the hydraulic device 1 to the outside of the anchor hole 5 at the other end of the anchor 4. Then, a clamping plate 7 is put on the anchor cable 6 at the other end, so that one end of the clamping plate 7 is inserted into the anchor hole 5. Then, by driving the hydraulic device 1 to work, the piston column 3 can be moved and adjusted to facilitate pulling the anchor cable 6 outward. During the movement and adjustment of the piston column 3, the sliding block 802 can be moved and adjusted, so that the pressure spring 803 can squeeze the pressure sensor 804, which can easily detect the pulling force on the anchor cable 6, facilitate control of the pulling force, and facilitate better operation.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A prestressed anchor cable tensioning device, including a hydraulic device (1), characterized in that: The hydraulic device (1) has a handle (2) fixedly installed on its outside. The hydraulic device (1) has a piston column (3) inside. One end of the piston column (3) has an anchor (4). The anchor (4) has an anchor hole (5) inside. The hydraulic device (1) has an anchor cable (6) running through it. The anchor cable (6) has a clamping plate (7) outside. The hydraulic device (1) has a detection mechanism (8) inside.

2. The prestressed anchor cable equal stress tensioning device according to claim 1, characterized in that: Two handles (2) are provided and are symmetrically fixedly installed on the outside of the hydraulic equipment (1).

3. The prestressed anchor cable equal stress tensioning device according to claim 1, characterized in that: The piston rod (3) has an installation groove at one end, and the anchor (4) is movably connected to the piston rod (3) through the installation groove.

4. The prestressed anchor cable equal stress tensioning device according to claim 1, characterized in that: The anchor (4) is made of titanium alloy material. There are two anchors (4) and they are symmetrically distributed at both ends of the hydraulic device (1).

5. The prestressed anchor cable equal stress tensioning device according to claim 1, characterized in that: The anchor holes (5) are provided in multiple ways and are evenly and symmetrically distributed inside the anchor (4).

6. The prestressed anchor cable equal stress tensioning device according to claim 1, characterized in that: The clamping plate (7) is set in a conical shape. The inner diameter of the clamping plate (7) is adapted to the outer diameter of the anchor cable (6). The anchor cable (6) is movably inserted into the clamping plate (7). The outer diameter of one end of the clamping plate (7) is adapted to the inner diameter of the anchor hole (5). One end of the clamping plate (7) is movably inserted into the anchor hole (5).

7. The prestressed anchor cable equal stress tensioning device according to claim 1, characterized in that: The detection mechanism (8) includes a movable groove (801), a sliding block (802), a pressure-sensitive spring (803), and a pressure sensor (804). The hydraulic device (1) has a movable groove (801) on its inner wall. A sliding block (802) is provided inside the movable groove (801). A pressure-sensitive spring (803) is provided at one end of the sliding block (802). A pressure sensor (804) is fixedly installed at one end of the inner wall of the movable groove (801). The outer diameter of the sliding block (802) is adapted to the inner diameter of the movable groove (801). The sliding block (802) is slidably connected to the movable groove (801). The bottom of the sliding block (802) is fixedly connected to the piston column (3).

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