Steel strand connector for steel strand anchorage

Abstract

This utility model discloses a steel strand connector for steel strand anchors, including anchor sleeves, self-clamping clamp assemblies, and connecting sleeves. One end of each of the two anchor sleeves is connected to the connecting sleeve via bolts and nuts. The self-clamping clamp assemblies are located within the mounting holes of the anchor sleeves and clamp the steel strands. The ends of the steel strands are inserted into the two anchor sleeves respectively. Then, according to the required stroke length of the connector, the two self-clamping clamp assemblies are installed on the ends of the two steel strands respectively. The connecting sleeve is then connected to the anchor sleeves. At this point, the connector can be pulled to move, thereby tensioning the steel strands and achieving the anchoring effect. The self-clamping clamp assemblies in this connector are easy to install, and when the steel strands are slack, there will be no relative movement between the steel strands and the self-clamping clamp assemblies.

Description

Technical Field

[0001] This utility model relates to the field of steel strand connector technology, and in particular to steel strand connectors for steel strand anchors. Background Technology

[0002] During the installation of stay cables, to ensure the working steel strand is accurately threaded into the corresponding anchor hole, a guide rod is typically used for traction. The guide rod is usually made of steel strand of the same specification, and a connector is required to connect the guide rod and the working steel strand. Therefore, the outer diameter of the connector must not exceed the diameter of the anchor hole; otherwise, the steel strand cannot be pulled through the anchor hole. Secondly, the connector must be able to lock the guide rod and the working steel strand in place and allow for easy installation and disassembly.

[0003] In the prior art, the patent with publication number CN222229305U, entitled "Clamp-type Quick Connector for Steel Strands," utilizes a spring to clamp the clamp assembly against the anchor sleeve. The clamp assembly, constrained by the mounting holes in the anchor sleeve, holds the steel strand tightly. When tension is applied to the steel strand, the clamp assembly can move with the strand without slippage, making it easy to tighten the steel strand. However, this type of connector relies on a spring, which is inconvenient to install in the anchor sleeve. Furthermore, if the steel strand loosens, it may move relative to the clamp assembly. Even if the clamp assembly doesn't move under the spring's action, the steel strand may move in the non-tensioned direction, resulting in a shorter intended travel length and affecting usability. There is an urgent need for a steel strand connector that allows for easy clamp installation and does not affect the travel length when the steel strand loosens. Utility Model Content

[0004] The purpose of this utility model is to provide a steel strand connector for steel strand anchors, so as to solve the problems that the clamps are inconvenient to install and that the connector stroke length will be affected when the steel strands are loosened.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A steel strand connector for steel strand anchors includes an anchor sleeve, a self-clamping clamp assembly, and a connecting sleeve. One end of each of the two anchor sleeves is connected to the connecting sleeve via bolt and nut pairs. The self-clamping clamp assembly is located in the mounting hole of the anchor sleeve and clamps the steel strand.

[0006] A further technical solution is: the self-clamping clamp assembly includes at least one ring and at least two anchor clamps, the plurality of anchor clamps are arranged in a circular pattern to form a hollow conical cylinder, and the outer circumferential surface of the hollow conical cylinder is provided with an annular groove adapted to the ring.

[0007] A further technical solution is that the ring is a rubber ring.

[0008] A further technical solution is that there are two annular grooves, which are respectively located near both ends of the hollow conical cylinder.

[0009] A further technical solution is that the inner circumferential surface of the through hole of the hollow conical cylinder is provided with threads.

[0010] A further technical solution is that the annular groove is U-shaped, and the annular clamp is located inside the annular groove.

[0011] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: This invention discloses a steel strand connector for steel strand anchors. The ends of the steel strands are inserted into two anchoring sleeves. Then, according to the required travel length of the connector, two self-clamping clamp assemblies are installed on the ends of the two steel strands respectively. The connecting sleeve is then connected to the anchoring sleeve. At this point, the connector can be pulled to move, thereby tensioning the steel strands and achieving the anchoring effect. The self-clamping clamp assemblies within this connector are easy to install, and when the steel strands are slack, there will be no relative movement between the steel strands and the self-clamping clamp assemblies. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a steel strand connector for a steel strand anchor according to the present invention.

[0013] Figure 2 This utility model Figure 1 A schematic diagram of the structure of the self-clamping clip assembly.

[0014] Figure 3 This utility model Figure 1 A schematic diagram of the structure of the middle anchor clamp.

[0015] Reference numerals: 1. Anchor sleeve; 2. Self-clamping clamp assembly; 3. Connecting sleeve; 4. Bolt and nut pair; 5. Steel strand; 6. Ring clamp; 7. Anchor clamp; 8. Ring groove. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, 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. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0022] This implementation example Figure 1 As shown, the steel strand connector for steel strand anchors includes an anchor sleeve 1, a self-clamping clamp assembly 2, and a connecting sleeve 3. One end of each of the two anchor sleeves 1 is connected to the connecting sleeve 3 via bolt and nut pairs 4. The self-clamping clamp assembly 2 is located in the mounting hole of the anchor sleeve 1 and clamps the steel strand 5.

[0023] The working process of this utility model is as follows: First, the ends of the two steel strands 5 that need to be pulled or tightened are respectively inserted into the anchor sleeves 1. According to the required stroke length of the connector, the self-clamping clamp assembly 2 is then placed on the ends of the steel strands 5. The self-clamping clamp assembly 2 will automatically clamp onto the steel strands 5 and move together with them. Next, the two ends of the connecting sleeve 3 are respectively placed on the two anchor sleeves 1. Finally, the connecting sleeve 3 and the two anchor sleeves 1 are tightened using bolt and nut pairs 4 to complete the connection between the connector and the steel strands 5. The self-clamping clamp assembly 2 in this connector is easy to install, and when the steel strands are slack, there will be no relative movement between the steel strands and the self-clamping clamp assembly. Example

[0024] Based on the above embodiments, this embodiment, for example Figure 2 and Figure 3 As shown, the self-clamping clamping plate assembly 2 includes at least one ring 6 and at least two anchor clamps 7. The multiple anchor clamps 7 are arranged in a circular pattern and form a hollow conical cylinder. The outer circumferential surface of the hollow conical cylinder is provided with an annular groove 8 that is adapted to the ring 6.

[0025] Multiple anchor clips 7 are arranged into a hollow conical cylindrical structure according to usage and installation requirements. Then, the ring clamp 6 is installed in the ring groove 8, and the hollow conical cylinder is clamped on the steel strand 5. At this time, the self-clamping clip assembly 2 can easily clamp the steel strand 5. That is, when the steel strand 1 is loosened, the self-clamping clip assembly 2 will move freely with the steel strand 5 within the degree of looseness. There will be no relative movement between the two, which ensures that the stroke length of the connector remains unchanged.

[0026] Preferably, the ring 6 is a rubber ring.

[0027] The rubber ring has a certain degree of shrinkage elasticity, making it easy to assemble and disassemble, and ensuring the stability of the hollow conical cylinder formed by multiple anchor clips 7.

[0028] Preferably, there are two annular grooves 8, which are located near the two ends of the hollow conical cylinder.

[0029] To save on processing costs, an annular groove 8 can be cut at the center of the hollow conical cylinder, and then a ring clamp 6 can be installed in the annular groove 8 to stabilize the hollow conical cylinder formed by multiple anchor clamps 7. However, a single annular groove 8 is not stable enough, especially at both ends of the hollow conical cylinder. Therefore, two annular grooves 8 located at both ends of the hollow conical cylinder and the ring clamps 6 within the annular grooves 8 are used to stabilize both ends of the hollow conical cylinder.

[0030] Preferably, the inner circumferential surface of the through hole of the hollow conical cylinder is provided with threads.

[0031] The internal thread of the through hole provides an anti-slip effect.

[0032] Preferably, the annular groove 8 is U-shaped, and the ring hoop 6 is located inside the annular groove 8.

[0033] The ring 6 is in the U-shaped annular groove 8 and will not protrude from the annular groove 8, so as to ensure the smooth movement of the self-clamping clip assembly 2 within the anchor sleeve 1.

[0034] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A steel strand connector for use in a steel strand anchor, characterized in that: It includes an anchor sleeve (1), a self-clamping clamp assembly (2) and a connecting sleeve (3). One end of each of the two anchor sleeves (1) is connected to the connecting sleeve (3) by a bolt and nut pair (4). The self-clamping clamp assembly (2) is located in the mounting hole of the anchor sleeve (1) and clamps the steel strand (5).

2. A steel strand connector for a steel strand anchor according to claim 1, characterized in that: The self-clamping clamp assembly (2) includes at least one ring clamp (6) and at least two anchor clamps (7). The multiple anchor clamps (7) are arranged in a circular pattern and form a hollow conical cylinder. The outer circumferential surface of the hollow conical cylinder is provided with an annular groove (8) that is adapted to the ring clamp (6).

3. A steel strand connector for a steel strand anchor according to claim 2, characterized in that: The ring (6) is a rubber ring.

4. A steel strand connector for a steel strand anchor according to claim 2, characterized in that: The number of annular grooves (8) is two, and they are respectively located near the two ends of the hollow conical cylinder.

5. A steel strand connector for a steel strand anchor as defined in claim 2, characterized in that: The inner circumferential surface of the through hole of the hollow conical cylinder is provided with threads.

6. A steel strand connector for a steel strand anchor as defined in claim 2, characterized in that: The annular groove (8) is U-shaped, and the ring clamp (6) is located inside the annular groove (8).

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