Cable clamp for connecting suspension cable type anchor beam and vertical anchor beam

Abstract

A cable clamp for connecting a suspension cable type anchor beam and a vertical anchor beam comprises a rotary cable disc 1, a fixed disc enclosure 7, upper and lower fixed disc screw holes 8, a clamping ring 9 of a main cable clamp 15, an anchor hole 10, a right cable clamp 13, a left cable clamp 14, the main cable clamp 15, a suspension cable 16, an upper clamping piece 18 and a lower clamping piece 19.

Description

Technical Field

[0001] This invention belongs to the field of geotechnical engineering slope support technology, and relates to the connecting components of flexible slope anchoring structures, specifically a cable clamp connecting a suspension anchor beam and a vertical anchor beam that can be adaptively adjusted in angle. Background Technology

[0002] In slope disaster prevention and control engineering, flexible slope protection nets, prestressed anchor cable frames, and anti-slide piles are the most widely used support forms. Among them, suspended flexible protection technology is widely used for the treatment of geological disasters such as collapses, landslides, and shallow landslides due to its advantages of short construction period, no need for excavation, adaptability to complex terrain, and ability to achieve overall slope protection.

[0003] In the prior art, the patent number ZL2021212891924, "Suspension-type and inclined-stayed composite flexible slope anchoring structure", discloses a connection structure between a suspension-type anchor beam and a vertical anchor beam, which realizes the force transmission of the cable beam through fixed connection components.

[0004] However, this existing technology has significant drawbacks:

[0005] Firstly, the connecting components are rigid fixed structures, and can only be used normally when the angle between the vertical anchor beam and the suspension direction of the suspension type anchor beam is close to 90°. When the angle is less than 60°, the compatibility fails due to the misalignment between the force direction and the bearing direction of the components.

[0006] Secondly, it has extremely poor versatility. To meet the connection requirements of different angles, structural components of different sizes need to be customized for adjustment, which not only increases the processing cost, but also leads to frequent component replacements during construction, significantly reducing construction efficiency.

[0007] The core reason for the aforementioned defects is that existing connection structures lack the ability to adaptively adjust angles, making them unsuitable for scenarios where the cable-beam angle varies due to terrain undulations in slope support. Therefore, there is an urgent need for a universal cable clamp structure that can flexibly adjust the connection angle without requiring component replacement, in order to solve the compatibility and construction efficiency problems of existing technologies. Summary of the Invention

[0008] (a) Purpose of the invention

[0009] To address the shortcomings of existing suspension anchor beam and vertical anchor beam connection structures, such as poor angle adaptability and insufficient versatility, this invention provides a connecting cable clamp that enables free rotational adjustment of the cable beam connection angle, thereby improving structural versatility and ease of construction.

[0010] (II) Technical Solution

[0011] The cable clamp disclosed in this invention for connecting a suspension anchor beam and a vertical anchor beam includes: a rotating cable disc 1, a vertical anchor beam cable through hole 2, an upper fixing disc 3, a lower fixing disc 4, a vertical anchor beam cable anchor 5, a vertical anchor beam cable 6, a fixing disc surround 7, upper and lower fixing disc screw holes 8, a clamping ring 9, an anchor hole 10, a connecting large column 11, a connecting small column 12, a right cable clamp 13, a left cable clamp 14, a main cable clamp 15, a suspension cable 16, a fixing frame 17, an upper clamping piece 18, and a lower clamping piece 19.

[0012] Its core technical features are as follows:

[0013] The main cable clamp 15 consists of a rotating cable disc 1, a fixed frame 17, and a clamping ring 9. The fixed frame 17 and the clamping ring 9 are connected by bolts in the screw holes 8 of the upper and lower fixed discs. The rotating cable disc 1 is fitted inside the fixed frame 17.

[0014] The fixing frame 17 consists of an upper fixing plate 3 and a lower fixing plate 4, which are mechanically connected or integrally cast through two connecting large columns 11 and two connecting small columns 12. The upper fixing plate 3 has a circular hole in the middle (the diameter of which is equal to the outer diameter of the rotating cable disc 1), and the lower fixing plate 4 has a barrel-shaped concave circular groove in the middle (the diameter of which is equal to the outer diameter of the rotating cable disc 1). The rotating cable disc 1 passes through the circular hole of the upper fixing plate 3 from top to bottom and is then embedded in the concave circular groove of the lower fixing plate 4. The upper surface edge of the upper fixing plate 3 and the lower surface edge of the lower fixing plate 4 are provided with fixing plate rings 7 to limit the range of motion of the clamping ring 9.

[0015] The rotating cable tray 1 is a cylindrical steel plate with a portion of its arc removed by straight cutting. After being installed in the fixing frame 17, its upper surface is flush with the upper surface of the circular hole of the upper fixing plate 3, and it can rotate left and right along the circumference. The rotating cable tray 1 has a vertical anchor beam cable through hole 2 perpendicular to the cut surface. The vertical anchor beam cable 6 passes through this hole and is fixed by the vertical anchor beam cable anchor 5.

[0016] The clamping ring 9 is provided with an anchor hole 10 with an opening. A small number of steel strands of the suspension cable 16 enter the anchor hole 10 through the opening and are anchored by the anchor. Most of the suspension cable 16 is divided into upper and lower bundles and passes through the gap between the clamping ring 9 and the fixing frame 17. The clamping ring 9 is fastened to the fixing frame 17 by bolts.

[0017] Both the right cable clamp 13 and the left cable clamp 14 are composed of an upper clamping plate 18 and a lower clamping plate 19, which are used to clamp the separate suspension cables 16 together by bolts.

[0018] (III) Working Principle

[0019] The fixing frame 17 divides the suspension cable 16 symmetrically into upper and lower bundles through upper and lower fixing plates, providing installation space for the rotating cable disc 1; the rotating cable disc 1 can rotate freely according to the angle requirements of the vertical anchor beam cable 6, realizing adaptive adjustment of the cable beam angle;

[0020] The tension of the vertical anchor cable 6 is transmitted to the hole walls of the upper and lower fixed plates through the rotating cable disc 1, and then to the clamping ring 9 through the bolts in the bolt holes of the fixed plates and the fixed plate ring 7. Finally, the clamping ring 9 transmits the force to the suspension cable 16, forming a complete force transmission path.

[0021] The left and right cable clamps combine and tighten the separated suspension cables 16, which can prevent the fixing frame 17 from separating and deforming due to force, and at the same time prevent the suspension cables 16 from sliding within the main cable clamp 15.

[0022] (iv) Beneficial effects

[0023] Strong angle adaptability: The angle can be freely adjusted within the range of 0-90° by rotating the cable disc, which can fully adapt to any angle between the suspension anchor beam and the vertical anchor beam, and solve the defect that the existing technology cannot be used when the angle is less than 60°.

[0024] High versatility: It can adapt to different angle requirements without replacing structural components, reducing customization and processing costs and reducing construction and matching difficulty by more than 60%;

[0025] Reliable force transmission: The dual fixing method of "local anchoring of anchor holes + overall clamping of cable clamps" is adopted, combined with the auxiliary reinforcement of left and right cable clamps, the slippage of the suspension cable is controlled within 0.1mm, and the force transmission stability is significantly improved.

[0026] Highly efficient construction: The installation steps are simple, and the installation time for a single set of cable clamps is reduced to less than 30 minutes, which is suitable for the rapid construction needs of complex slope terrain. Attached Figure Description

[0027] Figure 1 is a schematic diagram of the rotating cable disc of the present invention (showing the cable through hole and cut surface of the vertical anchor beam);

[0028] Figure 2 is a schematic diagram of the structure of the fixing frame of the present invention (showing the upper fixing plate, the lower fixing plate and the connecting column);

[0029] Figure 3 is a schematic diagram of the assembly of the fixing frame and the rotating cable disc of the present invention (showing the installation position and rotation trajectory of the rotating cable disc).

[0030] Figure 4 is a schematic diagram of the installation of the vertical anchor beam cable of the present invention (showing the connection relationship between the anchor and the rotating cable disc);

[0031] Figure 5 is a schematic diagram of the overall assembly of the present invention (showing the cooperation relationship between the main cable clamp, left cable clamp, right cable clamp and suspension cable);

[0032] The diagram shows: 1. Rotating cable disc, 2. Vertical anchor beam cable hole, 3. Upper fixing disc, 4. Lower fixing disc, 5. Vertical anchor beam cable anchor, 6. Fixing disc ring, 7. Upper and lower fixing disc screw holes, 8. Clamping ring, 9. Anchor hole, 10. Connecting large column, 11. Connecting small column, 12. Right cable clamp, 13. Left cable clamp, 14. Main cable clamp, 15. Suspension cable, 16. Fixing frame, 17. Upper clamping plate, 18. Lower clamping plate. Detailed Implementation

[0033] The preferred embodiments of the present invention will be described in detail below with reference to Figures 1-5, so that those skilled in the art can reproduce the technical solution accordingly.

[0034] Example 1: Angle-adaptive connection between suspension anchor beam and vertical anchor beam

[0035] Component prefabrication:

[0036] The rotating cable disc 1 is made of Q345B steel plate, and after cutting, it retains an arc segment with a central angle of 270°. The diameter of the cable threading hole 2 of the vertical anchor beam is 50mm (suitable for Φ15.2mm steel strand).

[0037] The upper fixing plate 3 and the lower fixing plate 4 of the fixing frame 17 are both Q345B steel plates with a thickness of not less than 30mm. They are connected to the large column 11 and the small column 12 and are formed as a whole by molding.

[0038] The clamping ring 9 adopts a two-half structure, the anchor hole 10 has a diameter of 30mm and an opening width of 15mm; the upper clamping plate 18 and lower clamping plate 19 of the left and right cable clamps are provided with anti-slip teeth on the inner side.

[0039] Installation steps:

[0040] Step 1: Pass the rotating cable disc 1 through the round hole of the upper fixed plate 3 from top to bottom and embed it into the concave round groove of the lower fixed plate 4 to complete the assembly of the fixed frame 17 and the rotating cable disc 1 (as shown in Figure 3).

[0041] Step 2: Divide the suspension cable 16 (Φ15.2mm steel strand bundle) into two bundles along the axis, and insert the assembled fixing frame 17 between the two bundles so that the suspension cable 16 is located in the reserved gap between the fixing frame 17 and the clamping ring 9;

[0042] Step 3: Fasten the clamping ring 9, insert several steel strands of the suspension cable 16 into the hole through the opening of the anchor hole 10, and anchor them with JM15 type anchor. Then tighten the clamping ring 9 by passing M24 high-strength bolts through the screw holes 8 of the upper and lower fixing plates.

[0043] Step 4: Pass the vertical anchor cable 6 through the vertical anchor cable hole 2 of the rotating cable disc 1, rotate the rotating cable disc 1 to the designated position according to the design angle (e.g., 45°), and fasten it with JM15 type anchor through the vertical anchor cable anchor 5 (as shown in Figure 4).

[0044] Step 5: Secure the left cable clamp 14 and right cable clamp 13 with M20 bolts at 50cm intervals on both sides of the fixing frame 17, so that the upper and lower bundles of the suspension cable 16 are clamped together (as shown in Figure 5).

Claims

1. A cable clamp for connecting a suspension anchor beam and a vertical anchor beam, characterized in that, Includes main cable clamp (15), rotating cable disc (1), fixing frame (17), clamp ring (9), left cable clamp (14) and right cable clamp (13); The main cable clamp (15) consists of a rotating cable disc (1), a fixed frame (17) and a clamping ring (9). The fixed frame (17) and the clamping ring (9) are connected by bolts in the upper and lower fixed disc screw holes (8). The rotating cable disc (1) is fitted inside the fixed frame (17). The fixing frame (17) is formed by connecting the upper fixing plate (3) and the lower fixing plate (4) through two connecting large columns (11) and two connecting small columns (12). The upper fixing plate (3) has a round hole in the middle, and the lower fixing plate (4) has a barrel-shaped concave groove in the middle. The diameter of the round hole and the concave groove are equal to the outer diameter of the rotating cable disc (1). The rotating cable disc (1) passes through the round hole of the upper fixing plate (3) from top to bottom and is embedded in the concave groove of the lower fixing plate (4) and can rotate in the circumferential direction. The rotating cable disc (1) has a vertical anchor beam cable through hole (2) perpendicular to its cutting surface. The vertical anchor beam cable (6) passes through the hole and is fixed by the vertical anchor beam cable anchor (5). The clamping ring (9) is provided with an anchor hole (10) with an opening. Part of the steel strand of the suspension cable (16) passes through the anchor hole (10) and is anchored by the anchor. The remaining suspension cables (16) are divided into upper and lower bundles and pass through the gap between the clamping ring (9) and the fixing frame (17). The left cable clamp (14) and the right cable clamp (13) are both composed of an upper clamping piece (18) and a lower clamping piece (19), which are used to merge and clamp the separated suspension cables (16).

2. The cable clamp for connecting a suspension anchor beam and a vertical anchor beam according to claim 1, characterized in that, The upper fixing plate (3) and the lower fixing plate (4) of the fixing frame (17) are mechanically connected or integrally cast; the upper surface edge of the upper fixing plate (3) and the lower surface edge of the lower fixing plate (4) are provided with fixing plate rings (7). The rotating cable disc (1) is a structure formed by cutting a cylindrical steel plate with a straight line to remove part of the arc.

3. A cable clamp for connecting a suspension anchor beam and a vertical anchor beam according to claim 1 or 2, characterized in that, The upper clip (18) and lower clip (19) of the left cable clip (14) and the right cable clip (13) are provided with anti-slip serrations on the inner side; High-strength bolts are used in the upper and lower fixed plate screw holes (8), and the anchors in the vertical anchor beam cable anchor (5) and anchor holes (10) are all JM15 type anchors.

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