Easily-tensioned steel strand anchorage device with efficient pulling force

Abstract

The utility model discloses an efficient tension easy-tensioning type steel strand anchorage device, and relates to the technical field of anchorage devices, the steel strand anchorage device comprises a jack, a steel strand body is arranged at the top end of the jack, an anchor ring is movably installed on the surface of the steel strand body, a clamping piece is movably installed at the bottom end of the anchor ring, and the clamping piece is arranged on the top end of the jack. And two supporting frames are fixedly mounted at the top end of the jack. According to the easily-tensioned steel strand anchorage device with the efficient tension, acting force is applied to the tail end of the pressing rod, the pressing rod deflects towards one side, meanwhile, the tail end of the pressing rod leaves the interior of the clamping plate, the top end of the pressing rod rotates around the bolt, and the top end of the pressing rod rotates in the supporting frame at the same time; the top end of the pressing rod relieves extrusion and fixation on the anchor ring, the jack is pulled downwards to move downwards, the tail end of the anchor ring is disconnected with the top end of the jack, the anchor ring and the jack are designed in a split mode, and fast combined installation can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of anchorages, in particular to an easy-to-tension steel strand anchorage with high-efficiency pulling force. Background Art

[0002] Anchor cable reinforcement is an important technology widely used in the construction of houses, roads, railways, pipelines, tunnels, etc. The main body of the anchor cable is a steel strand, one end of which is connected to a guide cap, and the other end is provided with a pedestal, anchor, pressure plate and other components.

[0003] At present, the existing steel strand anchor (such as patent number: CN217680027U) discloses a steel strand anchor, including a plate body, an upper fixing mechanism is arranged on the top of the plate body, a lower clamping ring extending downward and at least four even-numbered bow-shaped clips are arranged on the bottom, the length of the bow-shaped clips is greater than the length of the lower clamping ring, the tops of all the bow-shaped clips are fixedly connected to the bottom of the plate body and are symmetrically arranged in a ring shape around the lower clamping ring, the upper fixing mechanism, the lower clamping ring and the bow-shaped clips respectively fix the upper, middle and lower ends of the steel strand passing through the plate body, and the fixation is firm, and the bow-shaped clips have a certain elasticity, which can continuously clamp the steel strand, while also allowing the steel strand to swing slightly, with a good fixing effect, ensuring that no deformation will occur after long-term use, and the fixing structure is stable and the durability is enhanced.

[0004] However, during the implementation of the above technical solution, it was found that there are at least the following technical problems: the interior of the anchor is subjected to tension through the steel strands, and the interior of the anchor is fixed by clamping, and most of them are one-piece structures. During use, the steel strands will exert a tension in a fixed direction on the anchor. Under the action of stress, long-term use can easily lead to fractures inside the anchor. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides an easy-to-tension steel strand anchor with high pulling force, which solves the technical problem that the interior of the anchor is subjected to pulling force through the steel strand. The interior of the anchor is fixed by snap-fitting and is mostly an integrated structure. During use, the steel strand will exert a pulling force in a fixed direction on the anchor. Under the action of stress, long-term use can easily lead to breakage inside the anchor.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A high-efficiency tension-type steel strand anchor, the steel strand anchor comprising a jack, a steel strand body is arranged at the top of the jack, an anchor ring is movably mounted on the surface of the steel strand body, a clip is movably mounted on the bottom of the anchor ring, two support frames are fixedly mounted on the top of the jack, and a pressure rod is rotatably mounted inside each of the support frames;

[0010] Preferably: two clamping plates are fixedly installed on the surface of the pressure rod, a mounting tube is fixedly installed on the surface of the jack, one end of the mounting tube is fixedly connected to the jack, the interior of the mounting tube is hollow and passes through the jack, two joints are fixedly installed on the bottom end of the mounting tube, bolts are rotatably installed inside each of the support frames, the ends of the two joints are aligned with the bottom end of the jack, the spacing between the two support frames is larger than the anchor ring, and the anchor ring is directly clamped with the top end of the jack.

[0011] (III) Beneficial effects

[0012] 1. By allowing the pressure rod to deflect, the pressure rod rotates from a horizontal state to a vertical state, and the top of the pressure rod deflects to squeeze and fix the side end of the anchor ring, the anchor ring is connected to the jack, and a force is applied to the steel strand body through the jack, so that the steel strand body moves on one side of the jack. At the same time, the anchor ring supports the steel strand, and the jack pulls the steel strand body to drive the anchor ring to move. The anchor ring and the top of the two pressure rods rub against each other. Since the skirt on the outside of the anchor ring is an arc-shaped design, the reverse tension of the steel strand body is offset by the mutual sliding friction between the skirt and the top of the pressure rod. The step of the anchor ring provides a support point for the subsequent anchor withdrawal. The arc transition can ensure that there is no stress concentration point and no damage will occur, thereby increasing the force-bearing area of ​​the anchor ring and improving the tensile strength.

[0013] 2. Apply force to the end of the pressure rod to deflect it to one side. At the same time, the end of the pressure rod leaves the inside of the splint. The top of the pressure rod rotates around the bolt. The top of the pressure rod also rotates inside the support frame to release the top of the pressure rod from squeezing the anchor ring. Pull the jack downward to move it downward. The end of the anchor ring is disconnected from the top of the jack. The anchor ring and the jack are split designs, which can be quickly assembled and installed, and are also convenient for later disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0015] Figure 1 It is the structural diagram of the jack of the utility model;

[0016] Figure 2 This is a structural diagram of the anchor ring of the utility model;

[0017] Figure 3 This is a structural diagram of the pressure rod of the utility model;

[0018] Figure 4 It is a structural diagram of the connector of the utility model;

[0019] Figure 5 It is a structural diagram of the clip of the utility model.

[0020] Legend: 1. Jack; 11. Support frame; 12. Pressure rod; 13. Clamp; 14. Anchor ring; 15. Steel strand body; 16. Mounting pipe; 17. Joint; 18. Bolt; 21. Clip. DETAILED DESCRIPTION

[0021] The embodiment of the present application provides a high-efficiency, easy-to-tension steel strand anchor, which effectively solves the problem of applying tension through the steel strand inside the anchor. The interior of the anchor is fixed by clamping, and is mostly an integrated structure. During use, the steel strand will generate a pulling force in a fixed direction on the anchor. Under the action of stress, long-term use can easily lead to breakage inside the anchor. A force is applied to the steel strand body through a jack to move the steel strand body on one side of the jack. At the same time, the anchor ring supports the steel strand, and the jack pulls the steel strand body to drive the anchor ring to move. The anchor ring rubs against the top ends of the two pressure rods. Since the skirt on the outside of the anchor ring is an arc-shaped design, the reverse tension of the steel strand body is offset by the mutual sliding friction between the skirt and the top ends of the pressure rods, thereby reducing the stress level of the jack.

[0022] Example

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the technical solution in the embodiment of the present application effectively solves the problem that the anchor is internally applied with a tensile force through a steel strand, the interior of the anchor is fixed by a clamping connection, and is mostly an integrated structure. During use, the steel strand will produce a tensile force in a fixed direction on the anchor. Under the action of stress, long-term use may easily lead to the technical problem of fracture inside the anchor. The overall idea is as follows:

[0024] In view of the problems existing in the prior art, the utility model provides a high-efficiency tension-type steel strand anchor, which includes a jack 1, a steel strand body 15 is arranged at the top of the jack 1, an anchor ring 14 is movably mounted on the surface of the steel strand body 15, a clamping piece 21 is movably mounted on the bottom end of the anchor ring 14, two support frames 11 are fixedly mounted on the top of the jack 1, a pressure rod 12 is rotatably mounted inside each support frame 11, a force is applied to the end of the pressure rod 12, the pressure rod 12 is deflected to one side, and at the same time, the end of the pressure rod 12 leaves the inside of the clamping plate 13, the top end of the pressure rod 12 rotates around the bolt 18, and the top end of the pressure rod 12 rotates inside the support frame 11 at the same time, so that the top end of the pressure rod 12 releases the squeezing and fixing of the anchor ring 14;

[0025] Two clamping plates 13 are fixedly installed on the surface of the pressure rod 12, and a mounting tube 16 is fixedly installed on the surface of the jack 1. One end of the mounting tube 16 is fixedly connected to the jack 1. The interior of the mounting tube 16 is hollow and connected to the jack 1. Two joints 17 are fixedly installed on the bottom end of the mounting tube 16, and bolts 18 are rotatably installed inside each support frame 11.

[0026] Working principle:

[0027] The first step is to move and lift the jack 1 so that the top of the jack 1 is aligned with the bottom of the anchor ring 14, and push the jack 1 so that the ends of the steel strand body 15 and the anchor ring 14 are inserted into the inside of the jack 1 from the top of the jack 1. After the top of the jack 1 is fitted and docked with the anchor ring 14, the ends of the two pressure rods 12 are pressed, and the pressure rods 12 rotate inside the support frame 11. At the same time, the top of the pressure rods 12 rotates around the bolts 18, so that the pressure rods 12 are deflected, and the pressure rods 12 are pressed. The rod 12 rotates from a horizontal state to a vertical state, and the top end of the pressure rod 12 deflects to squeeze and fix the side end of the anchor ring 14, connecting the anchor ring 14 to the jack 1. At the same time, the pressure rod 12 rotates to a vertical state, and the end of the pressure rod 12 is aligned with the clamping plate 13. The top end of the pressure rod 12 rotates around the inner side of the support frame 11, driving the top clip 21 to squeeze and fix the outer side of the anchor ring 14. Through the support of the two clips 21, the inner side of the anchor ring 14 supports the steel strand body 15, and the anchor ring 14 and The jacks 1 are mutually engaged, and a force is applied to the steel strand body 1 through the jack 1, so that the steel strand body 15 moves on one side of the jack 1, and at the same time, the anchor ring 14 supports the steel strand, and the jack 1 pulls the steel strand body 15, driving the anchor ring 14 to move, and the anchor ring 14 rubs against the top ends of the two pressure rods 12. Since the skirt on the outside of the anchor ring 14 is an arc-shaped design, the reverse pulling force of the steel strand body 15 is offset by the mutual sliding friction between the skirt and the top ends of the pressure rods 12, thereby reducing the stress level of the jack 1 The jack 1 is used to prevent the steel strand body 15 from retracting and retain the force. The steel strand body 15 is the working object of the jack 1, and the two are not a whole. The step of the anchor ring 14 provides a support point for the subsequent anchor withdrawal. The arc transition can ensure that there is no stress concentration point and no damage will occur. The pressure rod 12 is limited by the splint 13 to prevent unhooking. At the same time, the anchor ring 14 cooperates with the pressure rod 12 to hang the jack 1. At the same time, the surface of the anchor ring 14 is a skirt design to increase the force-bearing area of ​​the anchor ring 14 and improve the tensile strength.

[0028] The second step is to apply force to the end of the pressure rod 12 to deflect the pressure rod 12 to one side, and at the same time, the end of the pressure rod 12 leaves the inside of the clamp 13, and the top of the pressure rod 12 rotates around the bolt 18. The top of the pressure rod 12 rotates inside the support frame 11 at the same time, so that the top of the pressure rod 12 releases the squeezing and fixing of the anchor ring 14. By pulling the jack 1 downward, the jack 1 is moved downward, and the end of the anchor ring 14 is disconnected from the top of the jack 1. The anchor ring 14 and the jack 1 are split designs, which can be quickly assembled and installed, and are also convenient for later disassembly and maintenance. A mounting tube 16 is installed on one side of the jack 1, and two connectors 17 are installed at the end of the mounting tube 16 for connecting pipelines.

[0029] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A high-efficiency tension-type steel strand anchor, characterized in that: The steel strand anchor comprises a jack (1), a steel strand body (15) is arranged at the top of the jack (1), an anchor ring (14) is movably mounted on the surface of the steel strand body (15), a clamping piece (21) is movably mounted at the bottom of the anchor ring (14), two support frames (11) are fixedly mounted at the top of the jack (1), and a pressure rod (12) is rotatably mounted inside each of the support frames (11); The two support frames (11) are installed symmetrically to each other, and a bayonet is provided at the top of the jack (1) corresponding to the end of the anchor ring (14).

2. A high-efficiency tension-type steel strand anchor as claimed in claim 1, characterized in that: Two clamping plates (13) are fixedly mounted on the surface of the pressure rod (12); Wherein, each clamping plate (13) and the end of the pressure rod (12) are mutually clamped.

3. The high-efficiency tension-type steel strand anchor according to claim 1, characterized in that: A mounting tube (16) is fixedly mounted on the surface of the jack (1).

4. The high-efficiency tension-type steel strand anchor as claimed in claim 3, characterized in that: One end of the mounting tube (16) is fixedly connected to the jack (1), and the interior of the mounting tube (16) is hollow and communicates with the jack (1).

5. The high-efficiency tension-type steel strand anchor as claimed in claim 3, characterized in that: Two joints (17) are fixedly mounted on the bottom end of the mounting tube (16).

6. The high-efficiency tension-type steel strand anchor according to claim 1, characterized in that: A bolt (18) is rotatably mounted inside each of the support frames (11); The bolt (18) horizontally penetrates the interior of the support frame (11) and the pressure rod (12).

7. The high-efficiency tension-type steel strand anchor according to claim 5, characterized in that: The ends of the two joints (17) are aligned with the bottom end of the jack (1).

8. The high-efficiency tension-type steel strand anchor according to claim 1, characterized in that: The distance between the two support frames (11) is greater than the anchor ring (14), and the anchor ring (14) is directly clamped with the top end of the jack (1).

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