Arm guard supporting structure for mountain iron tower excavated foundation and using method of arm guard supporting structure

Abstract

The invention belongs to the technical field of civil engineering, and particularly relates to a protection arm supporting structure for a mountain iron tower excavation foundation and a using method thereof.The protection arm supporting structure comprises a supporting assembly and a surrounding purlin; an insertion groove is formed in one side of each protection plate, an insertion block matched with the insertion groove is arranged on the other side of each protection plate, vertical holes are formed in the positioning positions of the insertion grooves and the insertion blocks, insertion rods are installed in the vertical holes, and the multiple protection plates are connected end to end through the insertion rods to form an annular structure so as to be supported on the inner wall of a foundation pit; the surrounding purlins are arranged on the inner side of the supporting assembly, positioning holes are evenly formed in the surrounding purlins, and a first bolt is installed in each positioning hole; the foundation pit wall is supported through the supporting assembly formed by splicing the multiple protection plates, and the situation that the pit wall loosens and slips and hurts operators is effectively prevented; the size and the weight of the guard plate are relatively small, the guard plate is convenient to transfer and assemble quickly, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of civil engineering, in particular to a guard arm support structure for a mountain metro tower excavation foundation and a use method thereof. Background Art

[0002] Tower foundation construction is an important task in the fields of civil engineering, building structure and mountain engineering. Especially in mountainous environments, due to the complex terrain and harsh geological conditions, the construction of tower foundations is difficult and risky. Among them, the construction of the excavation foundation of mountain towers is a key link, and its construction quality directly affects the stability and safety of the tower. During the construction process, in order to prevent the surrounding rock from loosening and sliding, protective devices are usually required.

[0003] The existing technology mainly uses concrete arm guards for protection. Concrete arm guards have the advantages of high strength and good stability, and can effectively prevent the surrounding rock from loosening and sliding. However, they have a long construction period and are difficult to transport and install, especially in mountainous environments.

[0004] To this end, the present invention provides a guard arm support structure for a mountain iron tower excavation foundation and a use method thereof. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is: the arm support structure for the excavated foundation of a mountain iron tower described in the present invention comprises a support assembly and a surrounding purlin:

[0007] The support assembly is composed of a plurality of arc-shaped guard plates; a slot is provided on one side of the guard plate, and an insert block adapted to the slot is provided on the other side; vertical holes are provided at the positioning positions of the slot and the insert block, and an insert rod is installed in the vertical hole, and the plurality of guard plates are connected end to end through the insert rod to form a ring structure to support the inner wall of the foundation pit;

[0008] The purlin is arranged on the inner side of the supporting assembly, and positioning holes are evenly opened on the purlin, a bolt is installed in each positioning hole, and a threaded hole matched with the bolt is provided on the guard plate to achieve a stable connection.

[0009] Preferably, it further comprises a support assembly, wherein the support assembly comprises a support ring, and a hydraulic telescopic rod is installed on the outer side of the support ring, and the hydraulic telescopic rod abuts against a groove provided on the inner wall of the purlin to support it.

[0010] Preferably, guide rails are fixed on the upper and lower sides of the outer side wall of the support ring, a moving block is slidably installed in the middle of the guide rail, a connecting column is rotatably installed on the side of the moving block, a mounting plate is rotatably installed on the connecting column away from the end of the moving block, and the hydraulic telescopic rod is fixedly installed on the mounting plate.

[0011] Preferably, a second bolt is threadedly connected to the second threaded hole in the movable block, and the head of the second bolt is slidably arranged in a movable groove opened in the middle of the connecting column. The head contour of the second bolt is adapted to the movable groove to drive the second bolt to rotate through the connecting column.

[0012] Preferably, an anchor hole is provided below the threaded hole 1, and an anchor rod is installed in the anchor hole.

[0013] Preferably, a baffle is fixed to the inner end of the anchor rod at the guard plate, a support rod is rotatably installed on the side of the baffle, a support plate is fixed to the side wall of the baffle, and the support plate is supported under the support rod so that the support rod and the anchor rod are in the same straight line, a threaded groove is provided in the middle of the end of the support rod away from the baffle, a top rod is threadedly connected in the threaded groove, and a slot matching the top rod is provided on the bottom side wall of the purlin.

[0014] Preferably, mounting holes are respectively provided at the upper and lower ends of the guard plate, and latches are installed in the mounting holes.

[0015] Preferably, a notch is provided on the guide rail located at the top, and the size of the notch is adapted to the moving block.

[0016] Preferably, the outer wall of the middle portion of the connecting column is configured as a regular hexagon.

[0017] A method for using a guard arm support structure for a mountain iron tower excavation foundation, the method is applicable to the above-mentioned guard arm support structure for a mountain iron tower excavation foundation, comprising the following steps:

[0018] S1. Prepare multiple guard plates and purlins, connect the plugs and slots of adjacent guard plates, insert the plug rods into the vertical holes for positioning, connect multiple guard plates end to end to form a ring structure, and support the ring support assembly on the inner wall of the foundation pit;

[0019] S2. Insert the anchor rod through the anchor hole into the foundation pit soil to initially limit the support assembly;

[0020] S3. Use a hoisting device to hoist the customized purlin into the pit, place the purlin on the support rod at the end of the anchor rod, support the purlin with the support rod, align the positioning hole on the purlin with the threaded hole one on the guard plate, and then insert the bolt one into the positioning hole and fix it in the threaded hole one;

[0021] S4. Insert the anchor rod completely into the soil so that the baffle plate at the end of the anchor rod fits with the guard plate, then rotate the support rod and then rotate the top rod so that the top rod is rotated out of the thread groove and pressed against the slot on the side of the purlin;

[0022] S5. Insert the moving block into the notch of the guide rail to install the hydraulic telescopic rod on the support ring. Slide the moving block along the guide rail to adjust the position of the hydraulic telescopic rod so that multiple hydraulic telescopic rods are evenly distributed on the side of the support ring. By rotating the connecting column, the connecting column drives the second bolt to move so that the second bolt is pressed against the side wall of the support ring, thereby locking the position of the hydraulic telescopic rod.

[0023] S6, transporting the support ring and the hydraulic telescopic rod to the middle position of the purlin, controlling the multiple hydraulic telescopic rods to extend outward synchronously and press against the grooves of the side walls of the purlin to support the purlin;

[0024] S7. Insert the pin into the mounting hole at the top of the guard plate, and then align the mounting holes at the bottom of another set of guard plates with the pin to extend the height of the support assembly. Repeat the operation to complete the assembly of the support structure.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1. The present invention discloses a guard arm support structure for the excavated foundation of a mountain tower and a method of using the same. The support assembly and the surrounding purlin are used to support the foundation pit wall, thereby effectively preventing the pit wall from loosening and sliding and causing harm to the workers. The support assembly is formed as a whole by splicing a plurality of guard plates. The guard plates are relatively small in size and weight, and are convenient for transportation. The splicing structure design enables the support assembly to be quickly assembled at the construction site, greatly improving the construction efficiency. Different numbers of guard plates can be spliced ​​into annular support assemblies of different diameters to meet the needs of foundation pits of different sizes.

[0027] 2. The present invention discloses a guard arm support structure for the excavation foundation of a mountain tower and a method of using the same. A support assembly is provided to support the inner side of the purlin, so that the purlin can be stably supported on the inner side of the guard plate, thereby making the support assembly support the pit wall more stably. When in use, a notch is provided to facilitate the rapid installation of a moving block, so that different numbers of hydraulic telescopic rods can be installed as needed to meet more usage requirements. In addition, by rotating the connecting column, the connecting column drives bolt two to move, so that bolt two is pressed against the side wall of the support ring, and at the same time, the moving block is tightly fitted to the guide rail and is simultaneously limited, thereby locking the position of the hydraulic telescopic rod, which is convenient for the subsequent stable pressing of the end of the hydraulic telescopic rod against the inner side of the purlin. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Figure 1 is a stereogram of the present invention;

[0030] Figure 2 It is a schematic structural diagram of the guard plate of the present invention;

[0031] Figure 3 is a cross-sectional view of the present invention;

[0032] Figure 4 yes Figure 3 A schematic diagram of the structure enlargement in the middle;

[0033] Figure 5 yes Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0034] Figure 6 yes Figure 4 A magnified schematic diagram of the structure at C in the middle;

[0035] Figure 7 It is a partial structural schematic diagram of the support assembly of the present invention;

[0036] Figure 8 It is a flow chart of the method of use of the present invention.

[0037] In the figure: 1, guard plate; 2, purlin; 3, support ring; 4, hydraulic telescopic rod; 5, bolt one; 6, anchor rod; 7, threaded hole one; 8, anchor hole; 9, slot; 10, plug rod; 11, plug block; 12, vertical hole; 13, mounting hole; 14, latch; 15, groove; 16, guide rail; 17, moving block; 18, bolt two; 19, threaded hole two; 20, movable groove; 21, connecting column; 22, mounting plate; 23, baffle; 24, support plate; 25, support rod; 26, threaded groove; 27, slot; 28, top rod; 29, notch. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] Embodiment 1: Figures 1 to 7 As shown, a guard arm support structure for a mountain tower excavation foundation according to an embodiment of the present invention includes a support assembly and a purlin 2:

[0040] The support assembly is composed of a plurality of arc-shaped guard plates 1; a slot 9 is provided on one side of the guard plate 1, and an insert block 11 adapted to the slot 9 is provided on the other side; a vertical hole 12 is provided at the positioning position of the slot 9 and the insert block 11, and an insert rod 10 is installed in the vertical hole 12, and the plurality of guard plates 1 are connected end to end through the insert rod 10 to form a ring structure to support the inner wall of the foundation pit;

[0041] The purlin 2 is arranged on the inner side of the supporting assembly, and positioning holes are evenly opened on the purlin 2, and a bolt 5 is installed in each positioning hole. The guard plate 1 is provided with a threaded hole 7 matched with the bolt 5 to achieve a stable connection;

[0042] During operation, multiple guard plates 1 and purlins 2 are pre-customized according to the size of the foundation pit. The guard plates 1 and purlins 2 are made of new aluminum materials, which have good bending resistance and corrosion resistance and can remain stable in various complex environments. During assembly, the plug blocks 11 and slots 9 of adjacent guard plates 1 are docked, and then the insert rods 10 are inserted into the vertical holes 12 for positioning, and multiple guard plates 1 are connected end to end to form a ring structure, and the ring-shaped support assembly is supported on the inner wall of the foundation pit, and then the customized purlin 2 is hoisted into the pit by the lifting equipment, and the bolts 5 pass through the positioning holes on the purlin 2 and are fixed in the threaded holes 7, and then the purlin 2 is fixed on the inner side of the support assembly, and the support assembly composed of the guard plates 1 and the purlin 2 cooperate to support the pit wall, effectively preventing the pit wall from loosening and sliding and causing harm to the operators; in addition, the support assembly is formed by splicing multiple guard plates 1 into a whole, and the guard plates 1 are relatively small in size and weight, which is convenient for transportation. This splicing structure design enables the support assembly to be quickly assembled on the construction site, greatly improving the construction efficiency; and different numbers of guard plates 1 can splice into ring-shaped support assemblies of different diameters to meet the use of foundation pits of different sizes.

[0043] It also includes a support assembly, which includes a supporting ring, and a hydraulic telescopic rod 4 is installed on the outer side of the support ring 3, and the hydraulic telescopic rod 4 abuts against a groove 15 opened on the inner wall of the surrounding purlin 2 to support it; when working, the support ring 3 and the hydraulic telescopic rod 4 cooperate to make the end of the hydraulic telescopic rod 4 extend outward and abut against the inner side of the surrounding purlin 2, so that the surrounding purlin 2 can be stably supported on the inner side of the guard plate 1, thereby making the support assembly support the pit wall more stably.

[0044] Guide rails 16 are fixed on the upper and lower sides of the outer wall of the support ring 3, and a moving block 17 is slidably installed in the middle of the guide rail 16. A connecting column 21 is rotatably installed on the side of the moving block 17, and a mounting plate 22 is rotatably installed on the end of the connecting column 21 away from the moving block 17, and the hydraulic telescopic rod 4 is fixedly installed on the mounting plate 22; when working, the moving block 17 is slid along the guide rail 16, and the position of the hydraulic telescopic rod 4 can be adjusted as needed, so that multiple hydraulic telescopic rods 4 are evenly distributed on the side of the support ring 3, so that the inner side of the purlin 2 is more evenly stressed, and the supporting effect on the support assembly is better.

[0045] A bolt 18 is threadedly connected in the threaded hole 19 provided in the moving block 17, and the head of the bolt 18 is slidably set in the movable groove 20 opened in the middle of the connecting column 21. The head contour of the bolt 18 is adapted to the movable groove 20, so as to drive the bolt 18 to rotate through the connecting column 21; when working, by rotating the connecting column 21, the connecting column 21 drives the bolt 18 to move, so that the bolt 18 is pressed against the side wall of the support ring 3, and at the same time, the moving block 17 is tightly fitted with the guide rail 16 and is synchronously limited, thereby locking the position of the hydraulic telescopic rod 4, so that the end of the hydraulic telescopic rod 4 can be stably pressed against the inner side of the surrounding purlin 2 later.

[0046] An anchor hole 8 is provided below the threaded hole 7, and an anchor rod 6 is installed in the anchor hole 8; when working, the anchor rod 6 is inserted into the foundation pit soil through the anchor hole 8 to initially limit the support assembly and prevent the guard plate 1 from tipping toward the middle.

[0047] The anchor rod 6 is located at the inner end of the guard plate 1 and is fixed with a baffle plate 23. A support rod 25 is rotatably installed on the side of the baffle plate 23. A support plate 24 is fixed to the side wall of the baffle plate 23, and is supported below the support rod 25 by the support plate 24, so that the support rod 25 and the anchor rod 6 are in the same straight line. A threaded groove 26 is provided in the middle of the end of the support rod 25 away from the baffle plate 23, and a top rod 28 is threadedly connected in the threaded groove 26. The bottom side wall of the surrounding purlin 2 is provided with a slot 27 adapted to the top rod 28. When working, when fixing the surrounding purlin 2, first place the surrounding purlin 2 on the support rod 25 at the end of the anchor rod 6, The purlin 2 is supported and limited by the support rod 25 so that the positioning hole on the purlin 2 can be quickly aligned with the threaded hole 7 on the guard plate 1, and then the bolt 5 is inserted into the positioning hole and fixed in the threaded hole 7 to improve the efficiency of installing the bolt 5; after the purlin 2 is fixed, the anchor rod 6 is completely inserted into the soil so that the baffle 23 at the end of the anchor rod 6 fits with the guard plate 1, and then the support rod 25 is rotated, and then the top rod 28 is rotated so that the top rod 28 is rotated out of the threaded groove 26 and pressed against the slot 27 on the side of the purlin 2, so that the anchor rod 6 can be limited to avoid loosening of the anchor rod 6 due to vibration during construction.

[0048] The upper and lower ends of the guard plate 1 are respectively provided with mounting holes 13, and a pin 14 is installed in the mounting hole 13; when working, the pin 14 is inserted into the mounting hole 13 at the top of the guard plate 1, and the length of the pin 14 is greater than the depth of the mounting hole 13. Then, the mounting hole 13 at the bottom of another group of guard plates 1 is connected with the pin 14, so as to extend the height of the support assembly to meet the use of foundation pits of different depths.

[0049] A notch 29 is provided on the guide rail 16 at the top, and the size of the notch 29 is adapted to the moving block 17. During operation, the moving block 17 can be quickly installed by providing the notch 29, so that different numbers of hydraulic telescopic rods 4 can be installed as needed to meet more usage requirements.

[0050] Embodiment 2: Figure 7 As shown, compared with Example 1, another implementation of the present invention is that the outer wall of the middle part of the connecting column 21 is set to a regular hexagon; when working, the force point of the connecting column 21 is increased to drive the connecting column to rotate.

[0051] like Figure 8 As shown, a method for using a guard arm support structure for a mountain iron tower excavation foundation, the method is applicable to the above-mentioned guard arm support structure for a mountain iron tower excavation foundation, comprising the following steps:

[0052] S1, prepare multiple guard plates 1 and purlins 2, connect the plug blocks 11 and slots 9 of adjacent guard plates 1, insert the plug rods 10 into the vertical holes 12 for positioning, connect multiple guard plates 1 end to end to form a ring structure, and support the ring support assembly on the inner wall of the foundation pit;

[0053] S2, insert the anchor rod 6 through the anchor hole 8 into the foundation pit soil to initially limit the support assembly;

[0054] S3, hoisting the customized purlin 2 into the pit by hoisting equipment, placing the purlin 2 on the support rod 25 at the end of the anchor rod 6, supporting the purlin 2 by the support rod 25, so that the positioning hole on the purlin 2 is aligned with the threaded hole 7 on the guard plate 1, and then inserting the bolt 5 into the positioning hole and fixing it in the threaded hole 7;

[0055] S4, the anchor rod 6 is completely inserted into the soil, so that the baffle 23 at the end of the anchor rod 6 fits with the guard plate 1, and then the support rod 25 is rotated, and then the top rod 28 is rotated so that the top rod 28 is rotated out of the thread groove 26 and pressed against the slot 27 on the side of the purlin 2;

[0056] S5. Insert the moving block 17 from the notch 29 of the guide rail 16 to install the hydraulic telescopic rod 4 on the support ring 3. Slide the moving block 17 along the guide rail 16 to adjust the position of the hydraulic telescopic rod 4 so that multiple hydraulic telescopic rods 4 are evenly distributed on the side of the support ring 3. By rotating the connecting column 21, the connecting column 21 drives the bolt 2 18 to move so that the bolt 2 18 is pressed against the side wall of the support ring 3, thereby locking the position of the hydraulic telescopic rod 4.

[0057] S6, transport the support ring 3 and the hydraulic telescopic rod 4 to the middle position of the purlin 2, control the multiple hydraulic telescopic rods 4 to extend outward synchronously, and press against the groove 15 of the side wall of the purlin 2, so as to support the purlin 2;

[0058] S7. Insert the pin 14 into the mounting hole 13 at the top of the guard plate 1, and then connect the mounting holes 13 at the bottom of another group of guard plates 1 with the pin 14 to extend the height of the support assembly, and then repeat the operation to complete the assembly of the support structure.

[0059] Working principle: connect the plug block 11 and slot 9 of adjacent guard plates 1, then insert the plug rod 10 into the vertical hole 12 for positioning, connect multiple guard plates 1 end to end to form a ring structure, support the ring support assembly on the inner wall of the foundation pit, insert the anchor rod 6 through the anchor hole 8 into the foundation pit soil, initially limit the support assembly to prevent the guard plate 1 from tipping to the middle, then hoist the customized purlin 2 into the pit through the hoisting equipment, first place the purlin 2 on the support rod 25 at the end of the anchor rod 6, and support and limit the purlin 2 through the support rod 25 so that it can be quickly Align the positioning hole on the purlin 2 with the threaded hole 7 on the guard plate 1, then insert the bolt 5 into the positioning hole and fix it in the threaded hole 7, and then fix the purlin 2 to the inside of the support assembly. The support assembly composed of the guard plate 1 and the purlin 2 work together to support the pit wall, effectively preventing the pit wall from loosening and sliding to cause harm to the workers; after the purlin 2 is fixed, the anchor rod 6 is completely inserted into the soil, so that the baffle 23 at the end of the anchor rod 6 fits with the guard plate 1, and then the support rod 25 is rotated, and then the top rod 28 is rotated so that the top rod 28 is pulled out from the thread groove 2 6 is turned out and pressed against the slot 27 on the side of the purlin 2, so that the anchor rod 6 can be limited to prevent the anchor rod 6 from loosening due to vibration during construction; then the moving block 17 is inserted from the notch 29 of the guide rail 16, and the hydraulic telescopic rod 4 can be installed on the support ring 3, and the moving block 17 is slid along the guide rail 16 to adjust the position of the hydraulic telescopic rod 4 so that multiple hydraulic telescopic rods 4 are evenly distributed on the side of the support ring 3, and the connecting column 21 is rotated, and the connecting column 21 drives the bolt 18 to move, so that the bolt 18 18 is pressed against the side wall of the support ring 3, thereby locking the position of the hydraulic telescopic rod 4; the support ring 3 and the hydraulic telescopic rod 4 are transferred to the middle position of the purlin 2, and the multiple hydraulic telescopic rods 4 are controlled to extend outward synchronously and pressed against the groove 15 on the side wall of the purlin 2 to support the purlin 2; the pin 14 is inserted into the mounting hole 13 at the top of the guard plate 1, and then the mounting hole 13 at the bottom of another group of guard plates 1 is docked with the pin 14 to extend the height of the support assembly, and then the operation is repeated to complete the assembly of the support structure.

[0060] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0062] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A guard arm support structure for the excavation foundation of a mountain iron tower, characterized in that: Includes support components and purlins (2): The support assembly is formed by splicing a plurality of arc-shaped guard plates (1); a slot (9) is provided on one side of the guard plate (1), and an insert block (11) adapted to the slot (9) is provided on the other side; a vertical hole (12) is provided at a positioning position of the slot (9) and the insert block (11); an insert rod (10) is installed in the vertical hole (12); and a plurality of guard plates (1) are connected end to end by the insert rod (10) to form a ring structure, so as to be supported on the inner wall of the foundation pit; The purlin (2) is arranged on the inner side of the supporting assembly, and positioning holes are evenly opened on the purlin (2), each positioning hole is installed with a bolt (5), and the guard plate (1) is provided with a threaded hole (7) matched with the bolt (5) to achieve a stable connection.

2. The arm support structure for the excavation foundation of a mountain iron tower according to claim 1, characterized in that: It also comprises a support assembly, which comprises a support ring, and a hydraulic telescopic rod (4) is installed on the outer side of the support ring (3), and the hydraulic telescopic rod (4) abuts against a groove (15) provided on the inner wall of the purlin (2) to support it.

3. The arm support structure for the excavation foundation of a mountain tower according to claim 2, characterized in that: Guide rails (16) are fixed on the upper and lower sides of the outer side wall of the support ring (3); a moving block (17) is slidably installed in the middle of the guide rail (16); a connecting column (21) is rotatably installed on the side of the moving block (17); a mounting plate (22) is rotatably installed at the end of the connecting column (21) away from the moving block (17); and the hydraulic telescopic rod (4) is fixedly installed on the mounting plate (22).

4. The arm support structure for the excavation foundation of a mountain tower according to claim 3 is characterized in that: A second bolt (18) is threadedly connected to the second threaded hole (19) provided in the moving block (17); the head of the second bolt (18) is slidably arranged in a movable groove (20) provided in the middle of the connecting column (21); the head profile of the second bolt (18) is adapted to the movable groove (20) so as to drive the second bolt (18) to rotate through the connecting column (21).

5. The arm support structure for the excavation foundation of a mountain tower according to claim 4, characterized in that: An anchor hole (8) is provided below the threaded hole 1 (7), and an anchor rod (6) is installed in the anchor hole (8).

6. The arm support structure for the excavation foundation of a mountain tower according to claim 5, characterized in that: The anchor rod (6) is located at the inner end of the guard plate (1) and is fixed with a baffle plate (23). A support rod (25) is rotatably mounted on the side of the baffle plate (23). A support plate (24) is fixed to the side wall of the baffle plate (23). The support plate (24) is supported below the support rod (25) so that the support rod (25) and the anchor rod (6) are on the same straight line. A threaded groove (26) is provided in the middle of one end of the support rod (25) away from the baffle plate (23). A top rod (28) is threadedly connected in the threaded groove (26). A slot (27) adapted to the top rod (28) is provided on the bottom side wall of the surrounding purlin (2).

7. The arm support structure for the excavation foundation of a mountain tower according to claim 6, characterized in that: The upper and lower ends of the guard plate (1) are respectively provided with mounting holes (13), and latches (14) are installed in the mounting holes (13).

8. The arm support structure for the excavation foundation of a mountain tower according to claim 7, characterized in that: A notch (29) is provided on the guide rail (16) located at the top, and the size of the notch (29) is adapted to the moving block (17).

9. The arm support structure for the excavation foundation of a mountain tower according to claim 8, characterized in that: The outer wall of the middle portion of the connecting column (21) is configured as a regular hexagon.

10. A method for using a guard arm support structure for a mountain tower excavation foundation, the method being applicable to the guard arm support structure for a mountain tower excavation foundation as claimed in claim 9, characterized in that: The following steps are involved: S1, prepare a plurality of guard plates (1) and purlins (2), connect the insert blocks (11) and slots (9) of adjacent guard plates (1), insert the insert rods (10) into the vertical holes (12) for positioning, connect the plurality of guard plates (1) end to end to form a ring structure, and support the ring support assembly on the inner wall of the foundation pit; S2, inserting the anchor rod (6) through the anchor hole (8) into the foundation pit soil to initially limit the support assembly; S3, hoisting the customized purlin (2) into the pit by means of hoisting equipment, placing the purlin (2) on the support rod (25) at the end of the anchor rod (6), supporting the purlin (2) by means of the support rod (25), so that the positioning hole on the purlin (2) is aligned with the threaded hole one (7) on the guard plate (1), and then inserting the bolt one (5) into the positioning hole and fixing it in the threaded hole one (7); S4, the anchor rod (6) is completely inserted into the soil, so that the baffle (23) at the end of the anchor rod (6) fits with the guard plate (1), and then the support rod (25) is rotated, and then the top rod (28) is rotated so that the top rod (28) is rotated out of the thread groove (26) and pressed against the groove (27) on the side of the surrounding purlin (2); S5, insert the moving block (17) from the notch (29) of the guide rail (16), install the hydraulic telescopic rod (4) on the support ring (3), slide the moving block (17) along the guide rail (16), adjust the position of the hydraulic telescopic rod (4), so that the plurality of hydraulic telescopic rods (4) are evenly distributed on the side of the support ring (3), and by rotating the connecting column (21), the connecting column (21) drives the second bolt (18) to move, so that the second bolt (18) is pressed against the side wall of the support ring (3), thereby locking the position of the hydraulic telescopic rod (4); S6, transporting the support ring (3) and the hydraulic telescopic rod (4) to the middle position of the purlin (2), controlling the plurality of hydraulic telescopic rods (4) to extend outward synchronously and to press against the groove (15) on the side wall of the purlin (2) so as to support the purlin (2); S7. Insert the pin (14) into the mounting hole (13) at the top of the guard plate (1), and then align the mounting hole (13) at the bottom of another set of guard plates (1) with the pin (14) to extend the height of the support assembly. Repeat the operation to complete the assembly of the support structure.

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