A device for placing a pressure box of an enlarged anchor cable

Abstract

A device for placing an enlarged head anchor cable pressure box, which relates to the field of detection technology. It comprises: an anchor cable fixing assembly detachably mounted on the anchor cable and used to fix the anchor cable; and a pressure box positioning assembly rotatably mounted on the anchor cable fixing assembly and used for assembling a pressure box, and moves relative to the anchor cable fixing assembly after the anchor cable fixing assembly enters the enlarged end of the borehole so that the pressure box reaches a preset measurement position. The pressure box positioning assembly comprises: a pressure box fixing part rotatably mounted on the anchor cable fixing assembly and used for assembling the pressure box; and a driving assembly arranged between the pressure box fixing part and the anchor cable fixing assembly and used to drive the pressure box fixing part to rotate relative to the anchor cable fixing assembly so that the pressure box reaches a preset measurement position. The above technical solution has the advantages of being able to locate the detection position of the pressure box, small detection error, simple structure and strong practicality.

Description

Technical Field

[0001] The invention relates to the field of detection technology, in particular to a device for placing an enlarged head anchor cable pressure box. Background Art

[0002] At present, the enlarged head anchor cable has great advantages over traditional anchor cables due to its high bearing capacity, small deformation and high reliability. Therefore, it has been widely used in foundation pit support. In foundation pit support, mechanically enlarged head anchor cables are generally used. The entire construction method generally includes: drilling, enlarging, slag cleaning and grouting. Drilling is first performed, and then the enlarging operation is performed. After the enlarging operation is completed, air is introduced to blow out the mud. Finally, the enlarged head anchor cable is placed in the enlarged hole and cement slurry is injected. In addition, a pressure box needs to be placed when the enlarged head anchor cable is placed in the enlarged hole to measure the force exerted on the ground when the enlarged head anchor cable is in a tensioned state.

[0003] The existing method of placing the pressure box is to place it directly in the hole, fix the pressure box on the channel steel or steel cage, and then bury the pressure box together with the channel steel or steel cage into the expanded hole, and then inject cement slurry into the expanded hole, and test the anchor tension after the cement slurry solidifies. However, the detection position of the pressure box cannot be guaranteed when it is buried in the drilled hole, and the measurement position is easily offset, thus affecting the accuracy of the test results. Therefore, there is room for improvement. Summary of the invention

[0004] The purpose of the present invention is to provide an enlarged head anchor cable pressure box placement device in view of the defects and shortcomings of the prior art, which has the advantages of being able to locate the detection position of the pressure box, being conducive to improving the detection accuracy, having a simple structure and being highly practical.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an enlarged head anchor pressure box placement device, comprising: an anchor fixing assembly detachably mounted on the anchor and used to fix the anchor; and a pressure box positioning assembly rotatably mounted on the anchor fixing assembly, used for assembling the pressure box, and moving relative to the anchor fixing assembly after the anchor fixing assembly enters the enlarged end of the borehole, so that the pressure box reaches a preset measurement position.

[0006] The pressure box positioning assembly includes: a pressure box fixing part rotatably mounted on the anchor fixing assembly and used for assembling the pressure box; and a driving assembly arranged between the pressure box fixing part and the anchor fixing assembly and used for driving the pressure box fixing part to rotate relative to the anchor fixing assembly so that the pressure box reaches a preset measuring position.

[0007] The driving assembly includes: a first pressing member rotatably assembled on the cable anchor fixing assembly and located between the cable anchor fixing assembly and the pressure box fixing member; a second pressing member rotatably assembled at one end on the pressure box fixing member and hinged at the other end to a position near the end of the first pressing member; and a pulling rope fixedly assembled on the first pressing member or the second pressing member. When the pulling rope is pulled, the first pressing member moves relative to the second pressing member, increasing the angle between them to撑开 the pressure box fixing member to a preset measurement position.

[0008] Hooks are provided on both the pressure box fixing member and the cable anchor fixing assembly, and rings are provided on the first pressing member and the second pressing member. The hooks are hung on the rings to enable detachable assembly between the pressure box fixing member and the second pressing member, and between the first pressing member and the cable anchor fixing assembly.

[0009] The cable anchor fixing assembly includes: a bottom plate rotatably assembled on the first pressing member; a panel detachably assembled on the bottom plate and hinged to one end of the pressure box fixing member; and a tight pressing fixing piece detachably assembled on the side of the panel close to the bottom plate and used in cooperation with the panel to tightly press the inserted cable anchor.

[0010] The pressure box fixing member is provided in a plate shape, and the pressure box fixing member is bent outward to form a pressure box installation position.

[0011] The cable anchor fixing assembly includes: an arc-shaped bottom plate rotatably assembled on the first pressing member; an arc-shaped panel detachably assembled on the bottom plate, hinged to one end of the pressure box fixing member, and used in cooperation with the arc-shaped bottom plate to clamp the cable anchor; and a cable anchor isolation piece provided between the arc-shaped bottom plate and the arc-shaped panel for isolating the cable anchor from the driving assembly.

[0012] The pressure box fixing member is a "C"-shaped cover.

[0013] A conical cover is provided on the panel corresponding to the cover, and the conical cover covers the cover to protect the cover and the pressure box.

[0014] A spring is provided between the cover and the bottom plate, and the spring is used to prevent the cover from loosening in a non-use state.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are:

[0016] 1. By means of the pressure cell positioning assembly rotatably mounted on the cable anchor fixing assembly, after the pressure cell enters the enlarged end of the drill hole, as the pressure cell fixing part rotates relative to the cable anchor fixing assembly, it reaches the preset measurement position and is detected after injecting cement, ensuring that the detection position of the pressure cell does not shift, thereby improving the detection accuracy.

[0017] 2. By setting the pressure cell fixing part as a "C"-shaped cover, the pressure cell is protected from being scratched and damaged by the drill hole wall during the process of entering the drill hole. Moreover, the conical cover arranged above the cover not only protects the pressure cell fixing part, but also plays a guiding role during the process of the pressure cell placement device for the enlarged head cable anchor entering the enlarged end of the drill hole, having the advantages of being able to locate the detection position of the pressure cell, small detection error, simple structure, and strong practicability. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is the structural schematic diagram of Embodiment 1 of the present invention;

[0020] Figure 2 is the structural schematic diagram when the pressure cell placement device for the enlarged head cable anchor in Embodiment 1 enters the drill hole and the pressure cell fixing part is in an open state;

[0021] Figure 3 is the structural schematic diagram of the panel, pressure cell fixing part and pressure cell in Embodiment 1;

[0022] Figure 4 is the structural schematic diagram of Embodiment 2 of the present invention;

[0023] Figure 5 is the structural schematic diagram of the arc-shaped panel, pressure cell fixing part, pressure cell and cable anchor in Embodiment 2;

[0024] Figure 6 is the structural schematic diagram of the arc-shaped bottom plate, cable anchor, cable anchor spacer and drive assembly in Embodiment 2;

[0025] Figure 7 is corresponding to Figure 6 side view.

[0026] Explanation of the reference numerals: 1. Anchor cable fixing assembly; 11. Base plate; 12. Panel; 13. Pressing fixing plate; 14. Bolt hole; 15. Bolt; 16. Curved panel; 17. Curved base plate; 18. Anchor cable isolation plate; 2. Pressure box positioning assembly; 21. Pressure box fixing piece; 22. Driving assembly; 221. First top pressure piece; 222. Second top pressure piece; 223. Pull rope; 3. Spring; 4. Conical cover; 5. Pressure box; 6. Anchor cable; 7. Drill hole; 8. Enlarged end. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0028] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

[0029] Example 1

[0030] This embodiment relates to a device for placing an enlarged head anchor cable pressure box, such as Figure 1 As shown, it includes: an anchor cable fixing component 1 and a pressure box positioning component 2. The anchor cable fixing component 1 is detachably mounted on the anchor cable 6. The pressure box positioning component 2 is rotatably mounted on the anchor cable fixing component 1. The pressure box positioning component 2 is used for assembling the pressure box 5 and moving relative to the anchor cable fixing component 1 after the anchor cable fixing component 1 enters the enlarged end 8 of the borehole 7, so that the pressure box 5 reaches the preset measurement position.

[0031] The anchor cable fixing assembly 1 includes a bottom plate 11 , a panel 12 and a pressing fixing sheet 13 .

[0032] like Figure 2 , 3 As shown, bolt holes 14 are correspondingly arranged on both sides of the panel 12 and the bottom plate 11, the panel 12 and the bottom plate 11 are connected by bolts 15, and the pressing fixing sheet 13 is fixedly assembled on the panel 12 by screws and is located between the panel 12 and the bottom plate 11. The pressing fixing sheet 13 is recessed toward the side close to the bottom plate to form an arc-shaped channel, and the anchor cable 6 passes through the arc-shaped channel and is pressed between the panel 12 and the pressing fixing sheet 13.

[0033] like Figure 2 As shown, the pressure box positioning assembly 2 includes: a pressure box fixing member 21 and a driving assembly 22.

[0034] The pressure box fixing part 21 is rotatably mounted on the anchor cable fixing component 1 through a rotating shaft. The pressure box fixing part 21 is set in a plate shape, and the pressure box fixing part 21 is bent outward to form a pressure box installation position. The pressure box 5 is fixedly mounted on the pressure box installation position and is located between the pressure box fixing part 21 and the bottom plate 11. It should be noted that the bending angle of the pressure box fixing part 21 is set according to the thickness of the pressure box, that is, when the pressure box 5 is assembled on the pressure box installation position, the pressure box fixing part 21 does not bulge. The driving component 22 is set between the bottom plate 11 and the pressure box fixing part 21, which is used to drive the pressure box fixing part 21 to rotate relative to the anchor cable fixing component 1 so that the pressure box 5 reaches the preset measurement position.

[0035] Furthermore, the driving assembly 22 includes a first pressing member 221 , a second pressing member 222 and a pull rope 223 .

[0036] The first top pressing member 221 is rotatably mounted on the anchor cable fixing assembly 1 at one end away from the panel 12, and is located between the bottom plate 11 and the pressure box fixing member 21. One end of the second top pressing member 222 is rotatably mounted on the pressure box fixing member 21, and the other end is hinged to the first top pressing member 221 at a distance of 2 cm from the end, thereby limiting the maximum angle of rotation of the first top pressing member 221 relative to the second top pressing member 222 to 180°, and the hinge is a rotating shaft, and can also be a hinge. Preferably, the pull rope 223 is a steel wire rope, and the steel wire rope is fixedly mounted on the second top pressing member 222, and can also be fixed on the second top pressing member 222. When the steel wire rope is pulled, the first top pressing member 221 moves relative to the second top pressing member 222, so that the angle between the two gradually increases, and the pressure box fixing member 21 is stretched to the preset measurement position. Preferably, when the angle between the first top pressing member 221 and the second top pressing member 222 is 180°, the pressure box 5 and the rotating hole are parallel to each other, which is the best measurement state.

[0037] Furthermore, hooks are welded on the pressure box fixing part 21 and the anchor cable fixing assembly 1, and circular rings are welded on the first top pressure part 221 and the second top pressure part 222. The hooks are hooked on the circular rings in a non-dropping manner to enable detachable assembly between the pressure box fixing part 21 and the second top pressure part 222 and the first top pressure part 221 and the base plate 11.

[0038] The working principle of the present invention is generally as follows: When in use, place the present expanding head anchor cable pressure box placement device into the drill hole 7. After it completely enters the expanding end 8 of the drill hole 7, pull the pulling rope 223 towards the drill hole 7 opening direction, driving the second pressing member 222 to rotate relative to the first pressing member 221. As the included angle between the two gradually increases, the pressure box fixing member 21 is撑开 by the first pressing member 221 and the second pressing member 222 until the included angle between the first pressing member 221 and the second pressing member 222 is 180 degrees. At this time, the pressure box 5 is parallel to the drill hole 7 opening, reaching the optimal test position. Then, inject cement slurry into the reamed hole. After the cement solidifies, the pressure box 5 can be used to detect the acting force of the expanding head anchor cable 6 on the ground when it is in a tensioned state. It has the advantages of being able to locate the detection position of the pressure box, being beneficial to improving the detection accuracy, having a simple structure, and strong practicability.

[0039] Embodiment 2

[0040] The difference between this embodiment and Embodiment 1 is that, as Figure 4 、 5 、6, and 7 show, the anchor cable fixing assembly 1 includes an arc-shaped panel 16, an arc-shaped bottom plate 17, and a cable isolation sheet. The arc-shaped panel 16 and the arc-shaped bottom plate 17 are formed by the middle parts of two parallel flat plates being recessed in opposite directions. The arc-shaped panel 16 and the arc-shaped bottom plate 17 are fixed by bolts 15, and a cylindrical channel is formed in the middle of the two of them. The anchor cable 6 passes through the channel and is clamped in the channel. The anchor cable isolation sheet 18 is fixedly assembled on the arc-shaped bottom plate 17 by screws and is located between the arc-shaped bottom plate 17 and the arc-shaped panel 16, and it is used to isolate the anchor cable 6 from the driving assembly 22.

[0041] The pressure box positioning assembly 2 is provided and includes: a pressure box fixing member 21 and a driving assembly 22. A through groove is provided on the panel. The pressure box fixing member 21 is a "C"-shaped cover, and the cover has a protective effect on the pressure box 5. The pressure box fixing member 21 is hinged to the inner side wall of the through groove, and the opening of the pressure box fixing member 21 faces the arc-shaped bottom plate 17 side. The hinge member is a rotating shaft and can also be a hinge. The driving assembly 22 is arranged between the arc-shaped bottom plate 17 and the pressure box fixing member 21, and it is used to drive the pressure box fixing member 21 to rotate relative to the anchor cable fixing assembly 1 so that the pressure box 5 reaches the preset measurement position.

[0042] A conical cover 4 is fixedly assembled on the arc-shaped panel 16 corresponding to the pressure box fixing member 21. The conical cover 4 is semi-conical, and the conical cover 4 covers the pressure box fixing member 21, and its tip is far from the cover. The conical cover 4 has a protective effect on the pressure box fixing member 21 and the pressure box 5. A spring 3 is arranged between the pressure box fixing member 21 and the arc-shaped panel 16. One end of the spring 3 is fixed on the cover, and the other end is fixed on the arc-shaped panel 16. The spring 3 is used to prevent the cover from loosening in the non-use state.

[0043] The above is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. An enlarged head anchor cable pressure box placement device, characterized in that: Comprising: An anchor cable fixing assembly (1) detachably assembled on the anchor cable (6) for fixing the anchor cable (6); And, A pressure cell positioning assembly (2) rotatably assembled on the anchor cable fixing assembly (1) for assembling the pressure cell (5), and moving relative to the anchor cable fixing assembly (1) after entering the enlarged end (8) of the drill hole (7) with the anchor cable fixing assembly (1) to enable the pressure cell (5) to reach a preset measurement position; The pressure cell positioning assembly (2) includes: A pressure cell fixing member (21) rotatably assembled on the anchor cable fixing assembly (1) for assembling the pressure cell (5); and, A driving assembly (22) disposed between the pressure cell fixing member (21) and the anchor cable fixing assembly (1) for driving the pressure cell fixing member (21) to rotate relative to the anchor cable fixing assembly (1) so that the pressure cell (5) reaches a preset measurement position; The driving assembly (22) includes: A first pressing member (221) rotatably assembled on the anchor cable fixing assembly (1) and located between the anchor cable fixing assembly (1) and the pressure cell fixing member (21); A second pressing member (222) with one end rotatably assembled on the pressure cell fixing member (21) and the other end hinged to a position near the end of the first pressing member (221); and, A pulling rope (223) fixedly assembled on the first pressing member (221) or the second pressing member (222). When the pulling rope (223) is pulled, the first pressing member (221) moves relative to the second pressing member (222), increasing the angle between them to撑开 the pressure cell fixing member (21) to a preset measurement position; The pressure cell fixing member (21) is arranged in a plate shape and is bent outward.

2. The enlarged head anchor cable pressure box placement device according to claim 1 is characterized in that: Hooks are provided on both the pressure cell fixing member (21) and the anchor cable fixing assembly (1), and rings are provided on the first pressing member (221) and the second pressing member (222). The hooks are hung on the rings to enable detachable assembly between the pressure cell fixing member (21) and the second pressing member (222) and between the first pressing member (221) and the anchor cable fixing assembly (1).

3. The enlarged head anchor cable pressure box placement device according to claim 1 or 2, characterized in that: The anchor cable fixing assembly (1) includes: An arc-shaped bottom plate (17) rotatably assembled on the first pressing member (221); An arc-shaped panel (16) detachably assembled on the bottom plate, hinged to one end of the pressure cell fixing member (21), and used in cooperation with the arc-shaped bottom plate (17) to clamp the anchor cable (6); and, An anchor cable isolation sheet (18) disposed between the arc-shaped bottom plate (17) and the arc-shaped panel (16) for isolating the anchor cable (6) from the driving assembly (22).

4. The enlarged head anchor cable pressure box placement device according to claim 3 is characterized in that: The pressure cell fixing member (21) is a "C"-shaped cover.

5. The enlarged head anchor cable pressure box placement device according to claim 4 is characterized in that: A conical cover (4) is provided on the panel corresponding to the cover, and the conical cover (4) covers the cover to protect the cover and the pressure cell (5).

6. The enlarged head anchor cable pressure box placement device according to claim 5 is characterized in that: A spring (3) is arranged between the cover and the arc-shaped bottom plate (17), and the spring (3) is used to prevent the cover from loosening when not in use.

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