Inclined supporting structure suitable for blocking anchor head of pre-stressed anchor cable

Abstract

The invention relates to the technical field of pre-stressed anchor cable anchor head inclined support sealing, in particular to an inclined support structure suitable for pre-stressed anchor cable anchor head plugging, which comprises a breast board, a left side plate, a right side plate, an outer side plate, a bottom side plate, a first sealing plate, a second sealing plate, a third sealing plate, a steel base plate, an anchorage device and an anchor cable, the two sides of the bottom side plate are each provided with two threaded holes, one side of the left side plate and one side of the right side plate are each provided with two inserting holes, the inner walls of the multiple threaded holes are detachably connected with fastening bolts in a threaded mode, the non-threaded sections of the multiple fastening bolts are each rotationally provided with a rotating base, and the surfaces of the multiple rotating bases are each fixedly connected with an inserting rod. The plurality of inserting rods are respectively and detachably connected with the inner walls of the plurality of corresponding inserting holes in a sliding manner; a combined sealing scheme of the dovetail grooves, the dovetail blocks and the slidable sealing plates is adopted, a highly-closed grouting cavity is formed, mortar is effectively prevented from leaking from joints in the grouting process, and material waste and site pollution are avoided.

Description

Technical Field

[0001] This invention relates to the field of prestressed anchor head oblique support sealing technology, and in particular to an oblique support structure suitable for sealing prestressed anchor heads. Background Technology

[0002] Prestressed anchoring technology applies active prestress to the reinforced structure by tensioning and anchoring high-strength steel strands in stable rock and soil, thereby improving its stress state and enhancing its stability and safety.

[0003] During the construction of prestressed anchor cable structures, failure to effectively seal the anchor head can lead to rust on the exposed anchor cable. Insufficient sealing can also allow air circulation inside the anchor cable, increasing internal humidity and accelerating corrosion and aging, resulting in reduced load-bearing capacity and potential safety hazards. Therefore, sealing the anchor head of prestressed anchor cables is a crucial step in prestressed anchor cable construction, aiming to protect the anchor head from external environmental erosion, maintain the tension of the prestressed anchor cable, and improve the overall quality and safety of the project.

[0004] The quality of anchor head sealing directly affects the durability and safety of anchor cables. The selection of sealing materials, mold selection and fabrication, and the implementation of the sealing process all require strict control to ensure a tight, leak-free anchor head seal. Poor sealing often results in mortar overflowing from the mold seam, causing unsightly defects, wasted mortar, and incomplete sealing.

[0005] Based on this, a suitable inclined support structure for sealing the anchor head of prestressed anchor cables is proposed. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention proposes a sloping support structure suitable for sealing the anchor head of prestressed anchor cables.

[0007] The technical solution to achieve the purpose of this invention is: a sloping support structure suitable for sealing the anchor head of a prestressed anchor cable, including a retaining plate, wherein a waist beam is fixedly installed on the upper surface of the retaining plate, and further including: a left side plate, a right side plate, an outer side plate and a bottom side plate;

[0008] Sealing plate one and sealing plate two are slidably provided at the joint between the upper surface of the left side plate and the outer side plate, respectively. Sealing plate three is slidably provided at the joint between the upper surface of the bottom side plate and the outer side plate. A steel pad is provided inside the cavity formed by the left side plate, the right side plate, the outer side plate and the bottom side plate. Anchors and anchor cables are respectively provided on the steel pad.

[0009] Two threaded holes are provided on both sides of the bottom side plate, and two insertion holes are provided on one side of the left side plate and the right side plate. The inner walls of the multiple threaded holes are detachably connected with fastening bolts. The non-threaded sections of the multiple fastening bolts are rotatably mounted with rotating seats. Insert rods are fixedly connected to the surfaces of the multiple rotating seats. The multiple insert rods are slidably and detachably connected to the inner walls of the corresponding multiple insertion holes.

[0010] Preferably, the upper surface of the left side plate is provided with a dovetail groove one, the upper surface of the right side plate is provided with a dovetail groove two, and the surface of the outer side plate is provided with three limiting grooves.

[0011] Preferably, the inner walls of the dovetail groove and one of the limiting grooves on the side of the outer side plate near the left side plate are slidably connected to two dovetail blocks, and the surfaces of the multiple dovetail blocks are respectively fixedly connected to the surface of the sealing plate.

[0012] Preferably, two dovetail blocks are slidably connected to the inner walls of the dovetail groove 2 and one of the limiting grooves on the side of the outer side plate near the right side plate, and the surfaces of the multiple dovetail blocks 2 are respectively fixedly connected to the surface of the sealing plate 2.

[0013] Preferably, the upper surface of the bottom side plate is provided with a dovetail groove three, and two dovetail blocks three are slidably connected to the inner wall of one of the limiting grooves on the side of the outer side plate near the bottom side plate. The surfaces of the multiple dovetail blocks three are respectively fixedly connected to the surface of the sealing plate three.

[0014] Preferably, a connecting groove is provided at one end of the sealing plate one near the sealing plate three, and the connecting groove corresponds to one of the limiting grooves on the side of the outer side plate near the bottom side plate.

[0015] Preferably, the surfaces of the two dovetail blocks are slidably and detachably connected to the inner wall of the connecting groove.

[0016] Preferably, iron nails are fixedly installed on both sides of the waist beam, and the same iron wire is wound around the two iron nails.

[0017] The significant advantages of this invention compared to existing technologies are:

[0018] Firstly, this invention uses fastening bolts, a rotating seat, and insert rods to quickly lock the left, right, bottom, and outer side plates into a single frame, eliminating the need for welding or complex fixings. Assembly and disassembly are extremely simple. This design significantly reduces the time required for formwork erection and dismantling, and decreases reliance on skilled workers. After construction, each component can be disassembled without damage and reused for the next anchor sealing operation, achieving formwork recycling and effectively saving material costs and transportation and storage expenses.

[0019] Secondly, this invention employs a combined sealing scheme of dovetail grooves, dovetail blocks, and sliding sealing plates. Sealing plates one, two, and three are slidably connected to the side plates and the outer side plates with limit grooves via dovetail blocks, respectively, achieving tight coverage of the joint. In particular, the interlocking design between the connecting groove at the end of sealing plate one and the dovetail block three of sealing plate three completely seals the critical intersection corner, forming a highly sealed grouting cavity. This structure effectively prevents mortar leakage from the joint during grouting, avoiding material waste and on-site pollution, and ensuring that the anchor head area is fully and densely wrapped with mortar, fundamentally improving the reliability of the sealing and the long-term durability of the anchor head.

[0020] Thirdly, this invention features a rigid connection between the bottom side plate and the left and right side plates via insert rods and holes, forming a stable whole with the sturdy retaining plate and waist beam. This ensures reliable resistance to lateral pressure generated during grouting, preventing formwork displacement and bulging, and guaranteeing construction safety. Furthermore, its modular design provides excellent adaptability; by adjusting the relative positions of the plates or customizing components of different sizes, it offers strong versatility. Attached Figure Description

[0021] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a three-dimensional structural schematic diagram provided by the present invention;

[0023] Figure 2 This is a schematic diagram of the inclined support structure provided by the present invention;

[0024] Figure 3 This is a schematic diagram of the exploded structure of the inclined support structure provided by the present invention;

[0025] Figure 4 This is a schematic diagram of the back structure of the inclined support structure provided by the present invention;

[0026] Figure 5 This invention provides Figure 4 Enlarged structural diagram at point A in the middle;

[0027] Figure 6 This is a schematic diagram of the bolt connection structure provided by the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Retaining plate; 2. Waist beam; 3. Left side plate; 4. Right side plate; 5. Outer side plate; 6. Bottom side plate; 7. Steel pad plate; 8. Anchor; 9. Anchor cable; 10. Iron nail; 11. Iron wire; 12. Dovetail groove one; 13. Sealing plate one; 14. Dovetail block one; 15. Dovetail groove two; 16. Sealing plate two; 17. Dovetail block two; 18. Limiting groove; 19. Sealing plate three; 20. Dovetail groove three; 21. Dovetail block three; 22. Connecting groove; 23. Threaded hole; 24. Insertion hole; 25. Fastening bolt; 26. Rotating seat; 27. Insert rod. Detailed Implementation

[0030] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] This invention provides an improved inclined support structure suitable for sealing prestressed anchor heads. The technical solution of this invention is as follows:

[0032] like Figure 1-6 As shown, a sloping support structure suitable for sealing the anchor head of a prestressed anchor cable includes a retaining plate 1, a waist beam 2 fixedly installed on the upper surface of the retaining plate 1, the retaining plate 1 and the waist beam 2 are made of high-strength steel plates, which have good bending strength and durability, the waist beam 2 is fixed to the retaining plate 1 by welding or bolts to enhance the overall rigidity, and also includes: a left side plate 3, a right side plate 4, an outer side plate 5 and a bottom side plate 6;

[0033] Sealing plates 13 and 16 are slidably installed at the joints between the upper surfaces of the left side plate 3 and the right side plate 4 and the outer side plate 5, respectively. Sealing plate 3 (19) is slidably installed at the joint between the upper surface of the bottom side plate 6 and the outer side plate 5. A steel pad 7 is installed inside the cavity formed by the left side plate 3, right side plate 4, outer side plate 5, and bottom side plate 6. Anchors 8 and anchor cables 9 are respectively installed on the steel pad 7. The steel pad 7, anchors 8, and anchor cables 9 conform to the relevant standards for prestressed engineering. The anchors 8 are made of alloy steel, and the anchor cables 9 are high-strength steel strands. Both require anti-corrosion treatment. The side plates and sealing plates are made of lightweight high-strength alloy materials or galvanized steel plates, and the surfaces can be rust-proofed to extend their service life. The dovetail grooves and dovetail blocks are precision machined to ensure smooth sliding and good sealing.

[0034] Two threaded holes 23 are provided on both sides of the bottom side plate 6, and two insertion holes 24 are provided on one side of the left side plate 3 and the right side plate 4. The inner walls of the multiple threaded holes 23 are detachably connected to fastening bolts 25. The fastening bolts 25, rotating seats 26 and insertion rods 27 are made of stainless steel, which has good corrosion resistance and mechanical strength and is suitable for humid and acidic / alkaline environments. The non-threaded sections of the multiple fastening bolts 25 are rotatably mounted with rotating seats 26. Insertion rods 27 are fixedly connected to the surface of the multiple rotating seats 26. The multiple insertion rods 27 are slidably and detachably connected to the inner walls of the corresponding multiple insertion holes 24. Through the cooperation of the insertion rods 27 and the threaded holes 23, a mechanical connection without welding or casting is achieved, which greatly improves construction efficiency.

[0035] like Figure 3 and Figure 4 As shown, the upper surface of the left side plate 3 is provided with a dovetail groove 12, the upper surface of the right side plate 4 is provided with a dovetail groove 15, and the surface of the outer side plate 5 is provided with three limiting grooves 18. The three limiting grooves 18 can respectively connect and seal the splice seams between the left side plate 3, the right side plate 4 and the bottom side plate 6 and the outer side plate 5.

[0036] Two dovetail blocks 14 are slidably connected to the inner walls of the dovetail groove 12 and one of the limiting grooves 18 on the side of the outer side plate 5 near the left side plate 3. The surfaces of the multiple dovetail blocks 14 are respectively fixedly connected to the surface of the sealing plate 13.

[0037] Two dovetail blocks 17 are slidably connected to the inner walls of the dovetail groove 15 and one of the limiting grooves 18 on the side of the outer side plate 5 near the right side plate 4. The surfaces of the multiple dovetail blocks 17 are respectively fixedly connected to the surface of the sealing plate 16.

[0038] like Figure 4 and Figure 5 As shown, a dovetail groove 20 is provided on the upper surface of the bottom side plate 6. Two dovetail blocks 21 are slidably connected to the inner wall of the dovetail groove 20 and one of the limiting grooves 18 on the side of the outer side plate 5 near the bottom side plate 6. The surfaces of the multiple dovetail blocks 21 are fixedly connected to the surface of the sealing plate 19 respectively.

[0039] A connecting groove 22 is provided at one end of the sealing plate 13 near the sealing plate 3 19. The connecting groove 22 corresponds to one of the limiting grooves 18 on the side of the outer plate 5 near the bottom plate 6. The cooperation between the connecting groove 22 and the dovetail block 3 21 further strengthens the joint seal.

[0040] The surfaces of the two dovetail blocks 21 are slidably and detachably connected to the inner wall of the connecting groove 22.

[0041] like Figure 1 and Figure 2 As shown, iron nails 10 are fixedly installed on both sides of the waist beam 2, and the same iron wire 11 is wrapped around the two iron nails 10.

[0042] The specific working method is as follows: the left side plate 3, right side plate 4, bottom side plate 6, and outer side plate 5 are mechanically connected using fastening bolts 25, insert rods 27, and rotating seats 26. Insert rods 27 are inserted into insert holes 24, and the fastening bolts 25 are rotated to connect them to the threaded holes 23 on the bottom side plate 6, thus achieving quick locking of the four side plates. This connection method ensures structural stability and facilitates later disassembly and maintenance.

[0043] Through the sliding fit of the dovetail groove and the dovetail block, sealing plate 13, sealing plate 26, and sealing plate 39 are respectively installed at the joints of the left side plate 3, the right side plate 4 and the outer side plate 5, and the bottom side plate 6 and the outer side plate 5. The dovetail block 321 on sealing plate 319 can also be slidably inserted into the connecting groove 22 of sealing plate 13 to further enhance the sealing of the joint and prevent mortar leakage during grouting. At the same time, it is connected and reinforced with iron wire 11 by the upper and lower screws of the waist beam 2 to ensure that the sealing is tight and there is no leakage, avoiding the situation of incomplete sealing. The steel pad 7, anchor 8, and anchor cable 9 are placed in the cavity formed by the multiple side plates, and then the sealing mortar is injected through the reserved grouting hole (not shown in the figure, can be set according to the actual situation). Since each joint is sealed by the sealing plate, the mortar will not overflow, ensuring that the anchor head area is fully filled and sealed.

[0044] After the mortar has hardened, the fastening bolts 25 can be removed in reverse, the insert rods 27 can be pulled out, and the side plates and sealing plates can be easily removed, enabling the template to be reused and saving materials and time.

[0045] The technical means disclosed in this invention are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this invention are common knowledge to those skilled in the art.

Claims

1. A sloping support structure suitable for sealing the anchor head of a prestressed anchor cable, comprising a retaining plate (1), wherein a waist beam (2) is fixedly installed on the upper surface of the retaining plate (1), characterized in that, Also includes: Left side panel (3), right side panel (4), outer side panel (5) and bottom side panel (6); Sealing plate one (13) and sealing plate two (16) are slidably provided at the joint between the upper surface of the left side plate (3) and the right side plate (4) and the outer side plate (5), respectively. Sealing plate three (19) is slidably provided at the joint between the upper surface of the bottom side plate (6) and the outer side plate (5). A steel pad plate (7) is provided inside the cavity formed by the left side plate (3), the right side plate (4), the outer side plate (5) and the bottom side plate (6). Anchors (8) and anchor cables (9) are respectively provided on the steel pad plate (7). Two threaded holes (23) are provided on both sides of the bottom side plate (6), and two insertion holes (24) are provided on one side of the left side plate (3) and the right side plate (4). The inner walls of the multiple threaded holes (23) are detachably connected with fastening bolts (25). The non-threaded sections of the multiple fastening bolts (25) are rotatably mounted with rotating seats (26). The surfaces of the multiple rotating seats (26) are fixedly connected with insertion rods (27). The multiple insertion rods (27) are slidably and detachably connected to the inner walls of the corresponding multiple insertion holes (24).

2. The inclined support structure for sealing prestressed anchor heads according to claim 1, characterized in that: The upper surface of the left side plate (3) is provided with a dovetail groove one (12), the upper surface of the right side plate (4) is provided with a dovetail groove two (15), and the surface of the outer side plate (5) is provided with three limiting grooves (18).

3. A sloping support structure for sealing prestressed anchor heads according to claim 2, characterized in that: The inner walls of the dovetail groove (12) and one of the limiting grooves (18) on the side of the outer side plate (5) near the left side plate (3) are slidably connected to two dovetail blocks (14), and the surfaces of the multiple dovetail blocks (14) are respectively fixedly connected to the surface of the sealing plate (13).

4. A sloping support structure for sealing prestressed anchor heads according to claim 3, characterized in that: The inner walls of the dovetail groove 2 (15) and one of the limiting grooves (18) on the side of the outer side plate (5) near the right side plate (4) are slidably connected to two dovetail blocks 2 (17), and the surfaces of the multiple dovetail blocks 2 (17) are respectively fixedly connected to the surface of the sealing plate 2 (16).

5. A sloping support structure for sealing prestressed anchor heads according to claim 4, characterized in that: The upper surface of the bottom side plate (6) is provided with a dovetail groove three (20). The inner walls of the dovetail groove three (20) and one of the limiting grooves (18) on the side of the outer side plate (5) near the bottom side plate (6) are slidably connected to two dovetail blocks three (21). The surfaces of the multiple dovetail blocks three (21) are respectively fixedly connected to the surface of the sealing plate three (19).

6. A sloping support structure for sealing prestressed anchor heads according to claim 5, characterized in that: The sealing plate one (13) has a connecting groove (22) at one end near the sealing plate three (19), and the connecting groove (22) corresponds to one of the limiting grooves (18) on the side of the outer plate (5) near the bottom plate (6).

7. A sloping support structure for sealing prestressed anchor heads according to claim 6, characterized in that: The surfaces of the two dovetail blocks (21) are slidably and detachably connected to the inner wall of the connecting groove (22).

8. A sloping support structure for sealing prestressed anchor heads according to claim 1, characterized in that: Iron nails (10) are fixedly installed on both sides of the waist beam (2), and the same iron wire (11) is wrapped around the two iron nails (10).

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