Steel structure anchoring block for external prestressing reinforcement

Abstract

The utility model discloses a steel structure anchoring block for external prestressing reinforcement, which comprises a wiring mechanism, a pressing mechanism and a locking mechanism, and the wiring mechanism comprises a steel cable sleeve, a plurality of through holes arranged on the steel cable sleeve, and a detachable steel cable connected with the steel cable sleeve. According to the utility model, after the steel cable is introduced into the steel cable sleeve, the extrusion block is inserted into the steel cable sleeve, at the moment, the plugging plate and the inner wall of the steel cable sleeve form a matched clamping structure under the thrust action of the extrusion block, and the extrusion block is locked through a plurality of bolts, so that the preliminary fixation of the steel cable is completed; the steel cable fixing device has the advantages that the steel cable fixing device is simple in structure and convenient to use, bolts are inserted to sequentially penetrate through the arc portions of the penetrating openings, nuts are tightly attached to the bottom of the base plate for screwing operation, secondary fixing of the steel cable is achieved, and the double fixing mechanism can effectively improve the pull-off resistance and safety redundancy of a steel cable system through mechanical complementary design.

Description

Technical Field

[0001] This utility model relates to the field of anchor block technology, specifically an anchor block for steel structures used in external prestressing reinforcement. Background Technology

[0002] Prestressed anchoring is a measure to increase the stability of retaining structures or soil and rock masses using anchoring methods. The method involves drilling a hole through a sliding surface that may or has already slid, fixing one end of a reinforcing bar or cable to the bottom of the hole, then tightening the bar or cable to generate a certain rebound force. The other end of the bar is then fixed to the surface of the soil or retaining structure. The rebound force of the bar compresses the potentially sliding soil or retaining structure, increasing the shear strength on the sliding surface and thus improving the stability of the soil or retaining structure.

[0003] Application number CN202320925680.2 discloses an externally prestressed anchoring end steel structure anchoring block, relating to the technical field of steel cable anchoring blocks, specifically a first annular seat and other structures. In use, the steel cable in each strand is threaded through the perforation hole for fixation. The arc-shaped clamp can then be tightened, causing the clamp to push the compression blocks inwards. The compression blocks then push the conical surface upwards in the opposite direction, tightening the single strand of stress-stressed steel cable and preventing gaps that could lead to loosening. However, in practical application, if the fixed steel cable is equal to or larger than the perforation diameter, the clamping tube used for clamping will be difficult to retract into the fixing disc after being fitted onto both sides of the steel cable, leading to cable fixation failure. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] An anchor block for external prestressed reinforcement of a steel structure includes a wiring mechanism, a clamping mechanism, and a locking mechanism. The wiring mechanism includes a steel cable sleeve, multiple through-holes in the steel cable sleeve, and a steel cable detachably connected to the steel cable sleeve. The clamping mechanism includes a base connected to the bottom of the steel cable sleeve, multiple bolts screwed to the base, a cable clamping assembly suspended at the top of the steel cable sleeve, and multiple insert plates connected to the top of the base. The locking mechanism includes a top plate connected to the top of the cable clamping assembly, multiple pins inserted into the top plate, and nuts fitted to the bottom of the base and screwed to the pins.

[0007] By adopting the above technical solution, after the steel cable is introduced into the cable sleeve, the compression block is inserted into the inside of the cable sleeve. At this time, the plug plate forms a clamping structure with the inner wall of the cable sleeve under the pushing force of the compression block. The compression block is locked by multiple bolts to complete the initial fixation of the steel cable. Then, the pin is inserted to pass through the arc part of each through-hole in turn. Finally, the nut is tightened against the bottom of the chassis to achieve the secondary fixation of the steel cable. This dual fixation mechanism can effectively improve the pull-out resistance and safety redundancy of the steel cable system through mechanical complementary design.

[0008] In a preferred embodiment, the present invention can be further configured such that: the cable pressing assembly is composed of a pressing block and multiple arc-shaped protrusions, the multiple arc-shaped protrusions are arranged in a triangle on the outside of the pressing block, the bottom outer edge of the pressing block is arc-shaped, and the tops of multiple bolts extend into the interior of the multiple arc-shaped protrusions respectively.

[0009] In a preferred embodiment, the present invention can be further configured as follows: multiple insert plates are arranged in pairs, forming two groups, with the two groups of insert plates being vertically symmetrical about the vertical center plane of the steel cable sleeve. The insert plates are located inside the steel cable sleeve, and a gap suitable for the steel cable to pass through is left between them and the inner wall of the steel cable sleeve.

[0010] In a preferred embodiment, the present invention can be further configured such that the inner edge of the top of the stopper plate is set as a slope, and the slope is located at the bottom of the arc surface.

[0011] In a preferred embodiment, the present invention can be further configured such that: the outer surface of the pin has a smooth surface and a thread, the smooth surface is located at the top of the thread, and the smooth surface is in contact with the inner wall of the chassis and the inner wall of the top plate.

[0012] In a preferred embodiment, the present invention can be further configured such that: the bottom end of the pin is provided with a bevel, and the outer edge of the bevel is chamfered.

[0013] In a preferred embodiment, the present invention can be further configured such that: the steel cable is bent with multiple arc-shaped portions, and the multiple arc-shaped portions are respectively attached to the outside of multiple pins.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] In this invention, after the steel cable is introduced into the cable sleeve, the compression block is inserted into the inside of the cable sleeve. At this time, the stopper plate forms a clamping structure with the inner wall of the cable sleeve under the pushing force of the compression block. The compression block is locked by multiple bolts to complete the initial fixation of the steel cable. Then, the pin is inserted to pass through the arc part of each through-hole in sequence. Finally, the nut is tightened against the bottom of the chassis to achieve the secondary fixation of the steel cable. This dual fixation mechanism can effectively improve the pull-out resistance and safety redundancy of the steel cable system through the mechanical complementary design. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the wiring mechanism of this utility model;

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

[0019] Figure 4 This is a schematic diagram of the locking mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the cable clamping assembly of this utility model;

[0021] Figure 6 This is a perspective view of the pin of this utility model.

[0022] Figure label:

[0023] 100. Cabling mechanism; 110. Steel cable sheath; 120. Through-hole; 130. Steel cable;

[0024] 200. Clamping mechanism; 210. Chassis; 220. Bolt; 230. Cable clamping assembly; 231. Extrusion block; 232. Arc-shaped protrusion; 233. Arc surface; 240. Plug plate;

[0025] 300, Locking mechanism; 310, Top plate; 320, Pin; 321, Smooth surface; 322, Thread; 323, Bevel; 330, Nut. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0027] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0028] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a steel structure anchor block for external prestressing reinforcement.

[0029] Example 1:

[0030] Combination Figure 1-6As shown, the present invention provides a steel structure anchor block for external prestressing reinforcement, including a wiring mechanism 100, a clamping mechanism 200 and a locking mechanism 300. The wiring mechanism 100 includes a steel cable sleeve 110, a plurality of through holes 120 opened on the steel cable sleeve 110, and a steel cable 130 detachably connected to the steel cable sleeve 110.

[0031] The clamping mechanism 200 includes a base 210 connected to the bottom of the steel cable sleeve 110, a plurality of bolts 220 screwed to the base 210, a cable clamping assembly 230 suspended at the top of the steel cable sleeve 110, and a plurality of stopper plates 240 connected to the top of the base 210.

[0032] The locking mechanism 300 includes a top plate 310 connected to the top of the cable clamping assembly 230, a plurality of pins 320 inserted into the top plate 310, and a nut 330 fitted to the bottom of the base plate 210 and screwed onto the pins 320.

[0033] Furthermore, the cable pressing assembly 230 is composed of a pressing block 231 and multiple arc-shaped protrusions 232. The multiple arc-shaped protrusions 232 are arranged in a triangle on the outside of the pressing block 231. The bottom outer edge arc surface 233 of the pressing block 231 is provided. The tops of multiple bolts 220 extend into the interior of the multiple arc-shaped protrusions 232 respectively. The installation method and layout design of the arc-shaped protrusions 232 ensure that the outer wall of the pressing block 231 will not crack after the bolts 220 enter the pressing block 231.

[0034] Furthermore, the multiple insert plates 240 are arranged in pairs, forming two groups. The two groups of insert plates 240 are vertically symmetrical about the vertical center plane of the steel cable sleeve 110. The insert plates 240 are located inside the steel cable sleeve 110, and a gap suitable for the steel cable 130 to pass through is left between them and the inner wall of the steel cable sleeve 110. The layout design of the insert plates 240 ensures that after the extrusion block 231 enters the steel cable sleeve 110, it can compress and fix the steel cable sleeve 110.

[0035] Furthermore, the outer surface of the pin 320 is provided with a smooth surface 321 and a thread 322. The smooth surface 321 is located at the top of the thread 322. The smooth surface 321 fits against the inner wall of the chassis 210 and the inner wall of the top plate 310. The structural design of the pin 320 allows it to pass smoothly through the chassis 210 and the top plate 310, making it convenient for operators to install and remove the pin 320.

[0036] Furthermore, the bottom end of the pin 320 is provided with a beveled surface 323, and the outer edge of the beveled surface 323 is chamfered. The shape design of the pin 320 makes it easy to pass through the arc part of the steel cable 130.

[0037] Example 2:

[0038] Combination Figure 1 and Figure 3 As shown, based on Embodiment 1, the inner edge of the top of the stopper plate 240 is set as a slope, and the slope is located at the bottom of the arc surface 233. The slope is set so that when the extrusion block 231 enters the steel cable sleeve 110, it will not be blocked by the stopper plate 240.

[0039] Example 3:

[0040] Combination Figure 1-4 As shown, in the above embodiment, the steel cable 130 is bent with multiple arc sections, which are respectively attached to the outside of multiple pins 320. The arc sections are provided to ensure that the pins 320 can fix the cable body of the steel cable 130.

[0041] The working principle and usage process of this utility model are as follows: After the steel cable 130 is inserted into the steel cable sleeve 110, it is laid out along its inner wall. When the steel cable 130 passes through each through-hole 120, a specific arc section needs to be formed on the outside of the through-hole 120. After all the steel cables 130 are laid out, the following steps are taken to fix them: First, the compression block 231 is inserted into the inside of the steel cable sleeve 110. At this time, the plug plate 240 forms a clamping structure with the inner wall of the steel cable sleeve 110 under the pushing force of the compression block 231. The compression block 231 is locked by multiple bolts 220 to complete the initial fixation of the steel cable 130. Then, the pin 320 is inserted to pass through the arc section at each through-hole 120 in sequence. Finally, the nut 330 is used to tighten the bottom of the chassis 210 to achieve the secondary fixation of the steel cable 130. This dual fixation mechanism can effectively improve the pull-out resistance and safety redundancy of the steel cable system through the mechanical complementary design.

[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A steel structure anchor block for external prestressing reinforcement, characterized in that, include: The wiring mechanism (100) includes a steel cable sleeve (110), a plurality of through holes (120) opened on the steel cable sleeve (110), and a steel cable (130) detachably connected to the steel cable sleeve (110); A clamping mechanism (200) includes a chassis (210) connected to the bottom of the cable sleeve (110), a plurality of bolts (220) screwed to the chassis (210), a cable clamping assembly (230) suspended above the top of the cable sleeve (110), and a plurality of insert plates (240) connected to the top of the chassis (210). The locking mechanism (300) includes a top plate (310) connected to the top of the cable clamping assembly (230), a plurality of pins (320) inserted into the top plate (310), and a nut (330) fitted to the bottom of the chassis (210) and screwed into the pins (320).

2. The steel structure anchor block for external prestressing reinforcement according to claim 1, characterized in that, The cable pressing assembly (230) consists of a pressing block (231) and multiple arc-shaped protrusions (232). The multiple arc-shaped protrusions (232) are arranged in a triangle on the outside of the pressing block (231). The bottom outer edge arc surface (233) of the pressing block (231) is provided. The tops of multiple bolts (220) extend into the interior of the multiple arc-shaped protrusions (232).

3. The steel structure anchor block for external prestressing reinforcement according to claim 1, characterized in that, Multiple insert plates (240) are arranged in pairs, forming two groups. The two groups of insert plates (240) are vertically symmetrical about the vertical center plane of the steel cable sleeve (110). The insert plates (240) are located inside the steel cable sleeve (110) and a spacing suitable for the steel cable (130) to pass through is left between them and the inner wall of the steel cable sleeve (110).

4. A steel structure anchor block for external prestressing reinforcement according to claim 2, characterized in that, The inner edge of the top of the stopper plate (240) is set as a slope, which is located at the bottom of the arc surface (233).

5. A steel structure anchor block for external prestressing reinforcement according to claim 1, characterized in that, The pin (320) has a smooth surface (321) and a thread (322) on its outer surface. The smooth surface (321) is located at the top of the thread (322), and the smooth surface (321) is in contact with the inner wall of the chassis (210) and the inner wall of the top plate (310).

6. A steel structure anchor block for external prestressing reinforcement according to claim 1, characterized in that, The bottom end of the pin (320) is provided with a bevel (323), and the outer edge of the bevel (323) is chamfered.

7. A steel structure anchor block for external prestressing reinforcement according to claim 1, characterized in that, The steel cable (130) has multiple curved sections bent on it, and the multiple curved sections are respectively attached to the outside of multiple pins (320).

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