Foundation pit support anchor cable end locking and fixing device

Abstract

The present application relates to the technical fields of anchor cable end locking and fixing, and particularly relates to a foundation pit support anchor cable end locking and fixing device, which comprises a caterpillar chassis, a support seat rotating unit is installed on the upper end of the caterpillar chassis, a support arm lifting unit is installed on the upper end of the support seat rotating unit, a rotating lifting unit is installed on the support arm lifting unit, a U-shaped bin is installed on the rotating lifting unit, a fixing and removing unit is installed in the U-shaped bin, and multiple anchor cables for foundation pit support are uniformly placed on the left side of the fixing and removing unit. Through the cooperation of the conical block and the U-shaped bolt, the anchor cable can be fixed and locked in the horizontal and vertical directions, and the effect of anchor cable end locking and fixing is enhanced. Through the fixing and removing unit, the functions of anchor cable end fixing and removing can be realized, multiple conical blocks are simultaneously brought into or out of the borehole in a reciprocating impact manner, the fixing and removing efficiency is high, and the problem of uneven fixing and locking strength of the anchor cable end can be avoided.

Description

Technical Field

[0001] This invention relates to the field of foundation pit support technology, and in particular to a foundation pit support anchor cable end locking and fixing device. Background Technology

[0002] Pit support anchors are a support technology used to ensure the stability of deep foundation pits and prevent soil deformation. They work by fixing materials such as steel bars, cables, or pipes into the soil to enhance the tensile and shear strength of the soil, thereby providing support and stabilizing the foundation pit. Pit support anchors are widely used in building construction, underground engineering, and civil engineering, especially in situations requiring deep excavations, unstable soil, or where surrounding structures are easily affected. They can be used to support pit walls, resist lateral soil pressure, reduce surface settlement, and prevent ground collapse. The installation process typically involves first drilling an inclined hole in the pit using anchor drilling equipment, then inserting the anchor cable and grouting pipe. After cleaning the hole, grout is injected through the grouting pipe, which is gradually pulled out until grouting is complete. Finally, the anchor cable ends are locked and fixed by installing a crossbeam steel frame and gaskets.

[0003] The existing anchor cable end locking and fixing method usually involves manually installing a crossbeam steel frame and shims to lock and fix multiple anchor cable ends. However, it does not perform longitudinal locking and fixing of multiple anchor cable ends, which may lead to uneven locking and fixing of anchor cable ends. In addition, it requires manual installation and disassembly, resulting in low work efficiency. Summary of the Invention

[0004] The technical problem to be solved: The present invention provides a locking and fixing device for the end of the foundation pit support anchor cable, which can solve the above-mentioned problems.

[0005] Technical Solution: To achieve the above objectives, the present invention adopts the following technical solution: a locking and fixing device for the end of an anchor cable for foundation pit support, comprising a tracked chassis, a support base rotating unit installed on the upper end of the tracked chassis, a support arm lifting unit installed on the upper end of the support base rotating unit, a rotating lifting unit installed on the support arm lifting unit, a U-shaped compartment installed on the rotating lifting unit, a fixing and dismantling unit installed inside the U-shaped compartment, and multiple anchor cables for foundation pit support evenly placed on the left side of the fixing and dismantling unit.

[0006] The fixed dismantling unit includes sliding grooves on both the left and right sides of the front and rear ends of the C-shaped compartment. Connecting slide plates are slidably installed in the sliding grooves. C-shaped support plates are installed on the opposite ends of the front and rear connecting slide plates. The opposite ends of the left and right C-shaped support plates are connected by multiple compression springs. A dual-axis motor is installed in the middle of the C-shaped compartment via a motor mount. The front and rear output shafts of the dual-axis motor are respectively connected to drive shafts that rotate through the front and rear ends of the C-shaped compartment. A cam is installed on the end of the drive shaft away from the dual-axis motor, which simultaneously rolls and contacts the left and right connecting slide plates. A fixed impact plate is installed on the left C-shaped support plate and the left end face of the two connecting slide plates. Multiple clearance holes are evenly opened in the middle of the fixed impact plate. A dismantling impact plate is installed on the right C-shaped support plate and the right end face of the two connecting slide plates. Multiple U-shaped through holes are evenly opened at the lower end of the dismantling impact plate.

[0007] The anchor cable end locking and fixing device for foundation pit support is used to fix the anchor cable with a conical block at the end. The conical block is slidably sleeved on the right side of the anchor cable. Multiple anchor cables are sleeved together on a crossbeam steel frame. The crossbeam steel frame has multiple circular oblique holes evenly opened at the position corresponding to the conical block. A connecting plate is installed on the right end of the conical block. The connecting plate has symmetrical installation holes on the top and bottom. Two adjacent connecting plates are connected together by a U-bolt. The two ends of the U-bolt pass through two adjacent installation holes on the upper and lower adjacent connecting plates. Two nuts are installed on the two threaded ends of the U-bolt to fix the upper and lower adjacent connecting plates.

[0008] As a preferred embodiment of the present invention, the support base rotating unit includes a support cylinder rotatably mounted on the upper middle part of the tracked chassis. A support base is mounted on the upper end of the support cylinder. A toothed ring is fixedly mounted on the outer surface of the support cylinder and located at the lower end of the support base. A motor mounting slot is provided on the right side of the upper end of the tracked chassis. A forward and reverse motor is mounted in the motor mounting slot through a motor base. The output shaft of the forward and reverse motor is connected to a transmission gear, and the transmission gear meshes with the toothed ring.

[0009] As a preferred embodiment of the present invention, the support arm lifting unit includes support guard plates symmetrically installed on the front and rear sides of the middle of the support base. Rotating shafts are rotatably installed on both the left and right sides between the two support guard plates. The support arm is fixedly sleeved on the rotating shaft on the right side. A first ear plate is symmetrically installed on the left side of the lower end of the support arm. A rotating rod is rotatably installed on both the front and rear first ear plates. A first hydraulic push rod is provided between the rotating rod and the rotating shaft on the left side, and the two ends of the first hydraulic push rod are respectively hinged to the rotating rod and the rotating shaft on the left side.

[0010] As a preferred embodiment of the present invention, the rotary lifting unit includes a passive gear rotatably mounted on the left side of the upper end of the support arm, a support platform mounted on the upper end of the passive gear, and connecting rods rotatably mounted on both the left and right sides of the upper end of the support platform via ear plates of the second type. The connecting rod on the left side is fixedly fitted with a connecting seat, and the connecting seat is connected to the middle of the lower end of the C-shaped compartment. The connecting rod on the right side is hinged to the lower right side of the C-shaped compartment via a hydraulic push rod of the second type. A rotary motor is mounted on the left side of the front end of the support arm via a motor mount, and the output shaft of the rotary motor is connected to a driving gear meshing with the passive gear.

[0011] As a preferred embodiment of the present invention, the right end faces of the two adjacent disassembly impact plates are jointly equipped with connecting plates, and the disassembly impact plates are connected to the corresponding two connecting plates by bolts.

[0012] As a preferred embodiment of the present invention, a conical block is slidably fitted on the right side of the anchor cable, and multiple anchor cables are fitted together on a crossbeam steel frame. The crossbeam steel frame is provided with multiple circular oblique holes evenly distributed on the conical block. A connecting plate is installed on the right end of the conical block. The connecting plate is provided with mounting holes symmetrically on the top and bottom. A U-bolt is placed on two adjacent connecting plates. Two nuts for fixing the two adjacent connecting plates are installed on the two threaded ends of the U-bolt.

[0013] As a preferred embodiment of the present invention, a first mudguard plate is installed at the lower end of the support base corresponding to the gear ring and the transmission gear, and a second mudguard plate is installed at the upper end of the support arm corresponding to the driven gear and the driving gear.

[0014] Beneficial effects: 1. The tapered block and U-bolt used in the foundation pit support anchor cable end locking and fixing device provided by the present invention can achieve both horizontal and vertical fixing of the anchor cable, and enhance the effect of anchor cable end locking and fixing.

[0015] 2. The support base rotation unit and the support arm lifting unit used in the foundation pit support anchor cable end locking and fixing device provided by the present invention can freely control the lifting angle and direction of the support arm, thereby driving the fixing and dismantling unit to move to the position required for fixing and dismantling the anchor cable, which facilitates the subsequent fixing and dismantling of the anchor cable.

[0016] 3. The rotary lifting unit used in the foundation pit support anchor cable end locking and fixing device provided by the present invention can drive the left and right ends of the U-shaped chamber to change direction, and can also control the right end face of the U-shaped chamber to lift, thereby driving the left end face to move to the position corresponding to the right end face of the cone block on which the anchor cable is slidably fitted.

[0017] 4. The fixing and dismantling unit of the anchor cable end locking and fixing device for foundation pit support provided by the present invention can realize the function of fixing and dismantling the anchor cable end. It adopts a reciprocating impact method to bring multiple conical blocks into or out of the borehole at the same time, which has high fixing and dismantling efficiency and can avoid the problem of uneven fixing and locking strength of the anchor cable end. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is the front view of the present invention.

[0021] Figure 3 This is a top view of the present invention.

[0022] Figure 4 This is a front sectional view of the present invention.

[0023] Figure 5 This is the present invention. Figure 4 A magnified view of point X in the middle.

[0024] Figure 6 This is the present invention. Figure 4 A magnified view of point N in the middle.

[0025] Figure 7 This is a three-dimensional structural diagram of the fixed dismantling unit of the present invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the rotating lifting unit of the present invention (including the No. 2 mudguard).

[0027] In the diagram: 1. Tracked chassis; 2. Support base rotating unit; 21. Support cylinder; 22. Support base; 23. Gear ring; 24. Forward and reverse motor; 25. Transmission gear; 26. Motor mounting slot; 3. Support arm lifting unit; 31. Support guard plate; 32. Rotating shaft; 33. Support arm; 34. First ear plate; 35. Rotating rod; 37. First hydraulic push rod; 4. Rotary lifting unit; 41. Driven gear; 42. Support platform; 43. Second ear plate; 44. Connecting seat; 45. Connecting rod; 46. Second hydraulic push rod; 47. Rotary motor; 48. 5. Drive gear; 6. C-shaped compartment; 7. Fixed removal unit; 8. Slide groove; 9. Connecting slide plate; 10. C-shaped support plate; 11. Compression spring; 2. Dual-axis motor; 3. Drive shaft; 4. Cam; 5. Fixed impact plate; 66. Clearance hole; 77. Removable impact plate; 88. U-shaped through hole; 9. Anchor cable; 10. Conical block; 11. Crossbeam steel frame; 12. Circular oblique hole; 13. Connecting plate; 14. Mounting hole; 15. U-bolt; 16. Nut; 17. No. 1 mudguard plate; 18. No. 2 mudguard plate; 19. Connecting plate; 10. Bolt. Detailed Implementation

[0028] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0029] See Figure 1 , Figure 2 and Figure 4 A locking and fixing device for the end of anchor cables for foundation pit support includes a tracked chassis 1. A support base rotating unit 2 is installed on the upper end of the tracked chassis 1. A support arm lifting unit 3 is installed on the upper end of the support base rotating unit 2. A rotating lifting unit 4 is installed on the support arm lifting unit 3. A U-shaped compartment 5 is installed on the rotating lifting unit 4. A fixing and dismantling unit 6 is installed inside the U-shaped compartment 5. Multiple anchor cables 7 for foundation pit support are evenly placed on the left side of the fixing and dismantling unit 6.

[0030] See Figure 1 , Figure 2 and Figure 6 The anchor cable end locking and fixing device for foundation pit support is used to fix the anchor cable 7 with a conical block 8 at the end. The conical block 8 is slidably sleeved on the right side of the anchor cable 7. Multiple anchor cables 7 are sleeved together on a crossbeam steel frame 9. The crossbeam steel frame 9 is evenly provided with multiple circular oblique holes 10 corresponding to the position of the conical block 8. A connecting plate 11 is installed on the right end of the conical block 8. The connecting plate 11 is symmetrically provided with mounting holes 12. Two adjacent connecting plates 11 are connected together with U-bolts 13. The two ends of the U-bolt 13 pass through two adjacent mounting holes 12 on the upper and lower adjacent connecting plates 11. Two nuts 14 are installed on the two threaded ends of the U-bolt 13 for fixing the upper and lower adjacent connecting plates 11.

[0031] First, multiple inclined holes are drilled horizontally and vertically on the end face of the foundation pit using an external anchor drilling device. Then, the anchor cable 7 and the grouting pipe are manually inserted into the holes simultaneously. After cleaning the holes, grouting is performed through the grouting pipe. While grouting, the grouting pipe is gradually pulled out until grouting is completed. Afterward, a crossbeam steel frame 9 with multiple evenly spaced circular inclined holes 10 is installed manually. Then, a conical block 8 is fitted onto the anchor cable 7 and pushed into the hole to facilitate the subsequent fixing and dismantling unit 6 to fix the conical block 8. When the conical block 8 is inserted through the circular inclined holes on the crossbeam steel frame 9... After the anchor cable 10 is inserted into the borehole to its maximum stroke, it is simultaneously fixed and locked in the borehole and the circular inclined hole 10. At this time, multiple horizontal anchor cables 7 are fixed and locked to the crossbeam steel frame 9 through the conical block 8. Then, U-bolts 13 are placed manually in the mounting holes 12 on the two adjacent connecting plates 11. The two adjacent connecting plates 11 are then fixed by tightening the nut 14. At this time, multiple vertical anchor cables 7 are fixed and locked to each other through the U-bolts 13, thereby achieving both horizontal and vertical fixing of the anchor cables 7 and strengthening the locking effect at the end of the anchor cables 7.

[0032] See Figures 2-4 The support base rotating unit 2 includes a support cylinder 21 rotatably mounted on the upper middle part of the tracked chassis 1. A support base 22 is mounted on the upper end of the support cylinder 21. A toothed ring 23 is fixedly mounted on the outer surface of the support cylinder 21 and located at the lower end of the support base 22. A motor mounting slot 26 is opened on the upper right side of the tracked chassis 1. A forward and reverse motor 24 is mounted in the motor mounting slot 26 through a motor base. The output shaft of the forward and reverse motor 24 is connected to a transmission gear 25, and the transmission gear 25 meshes with the toothed ring 23.

[0033] See Figure 2 , Figure 4 and Figure 5 The support arm lifting unit 3 includes support guard plates 31 symmetrically installed on the front and rear sides of the middle of the support base 22. Rotating shafts 32 are rotatably installed on both the left and right sides between the two support guard plates 31. The support arm 33 is fixedly sleeved on the rotating shaft 32 on the right side. A first ear plate 34 is symmetrically installed on the left side of the lower end of the support arm 33. A rotating rod 35 is rotatably installed on both the front and rear first ear plates 34. A first hydraulic push rod 37 is provided between the rotating rod 35 and the rotating shaft 32 on the left side. The two ends of the first hydraulic push rod 37 are respectively hinged to the rotating rod 35 and the rotating shaft 32 on the left side.

[0034] The tracked chassis 1 is moved to the position where the anchor cable 7 is placed in the foundation pit. The forward and reverse motor 24 controls the transmission gear 25 and the gear ring 23 to drive the support column 21 to rotate. The support column 21 drives the support seat 22 to rotate to the position corresponding to the anchor cable 7 placed in the foundation pit. The two No. 1 hydraulic push rods 37 are activated to extend their telescopic ends. The two No. 1 hydraulic push rods 37 push the support arm 33 to rotate around the rotating shaft 32 until the end of the support arm 33 away from the rotating shaft 32 corresponds to the top layer of anchor cable 7. The support seat rotation unit 2 and the support arm lifting unit 3 cooperate to freely control the lifting angle and direction of the support arm 33, thereby driving the fixing and removal unit 6 to move to the position where the anchor cable 7 needs to be fixed, so as to facilitate the subsequent fixing of the anchor cable 7.

[0035] See Figure 2 , Figure 5 and Figure 8 The rotating lifting unit 4 includes a passive gear 41 rotatably mounted on the left side of the upper end of the support arm 33. A support platform 42 is mounted on the upper end of the passive gear 41. Connecting rods 45 are rotatably mounted on both the left and right sides of the upper end of the support platform 42 through the second ear plate 43. The connecting rod 45 on the left side is fixedly fitted with a connecting seat 44, and the connecting seat 44 is connected to the middle of the lower end of the chamfered compartment 5. A second hydraulic push rod 46 is hinged between the connecting rod 45 on the right side and the lower right side of the chamfered compartment 5. A rotary motor 47 is mounted on the left side of the front end of the support arm 33 through a motor mount, and the output shaft of the rotary motor 47 is connected to a driving gear 48 that meshes with the passive gear 41.

[0036] See Figure 2 , Figure 4 and Figure 5 The lower end of the support base 22 is equipped with a first mudguard plate 15 corresponding to the toothed ring 23 and the transmission gear 25, and the upper end of the support arm 33 is equipped with a second mudguard plate 16 corresponding to the driven gear 41 and the driving gear 48.

[0037] The rotary motor 47 controls the drive gear 48 and the driven gear 41 to drive the support platform 42 to rotate. The support platform 42 drives the C-shaped chamber 5 to rotate until the left and right ends of the C-shaped chamber 5 are reversed. The two hydraulic push rods 46 are controlled to drive the right end of the C-shaped chamber 5 to rise until the left end of the C-shaped chamber 5 moves to the position corresponding to the right end of the multiple conical blocks 8 that are slidably fitted on the anchor cable 7. The rotary lifting unit 4 can drive the left and right ends of the C-shaped chamber 5 to reverse, and can also control the right end of the C-shaped chamber 5 to rise, thereby driving the left end to move to the position corresponding to the right end of the conical blocks 8 that are slidably fitted on the anchor cable 7.

[0038] See Figures 2-4 and Figure 7The fixed removal unit 6 includes sliding grooves 61 at both ends of the U-shaped compartment 5 on both the left and right sides. Connecting slide plates 62 are slidably installed within each groove 61. U-shaped support plates 63 are installed at the opposite ends of the two connecting slide plates 62. The opposite ends of the two U-shaped support plates 63 are connected at both ends by multiple compression springs 64. A dual-axis motor 65 is mounted in the middle of the U-shaped compartment 5 via a motor mount. The two output shafts of the dual-axis motor 65 are respectively connected to a rotating shaft that passes through both ends of the U-shaped compartment 5. A drive shaft 66 is provided with a cam 67 that rolls and contacts the two connecting slide plates 62 on the left and right sides at one end away from the dual-axis motor 65. A fixed impact plate 68 is installed on the left side of the C-shaped support plate 63 and the left end face of the two connecting slide plates 62. The fixed impact plate 68 has multiple clearance holes 69 evenly distributed in the middle. A disassembly impact plate 70 is installed on the right side of the C-shaped support plate 63 and the right end face of the two connecting slide plates 62. The disassembly impact plate 70 has a U-shaped through hole 71 at the lower end.

[0039] See Figures 2-4 and Figure 7 The two adjacent disassembly impact plates 70 are connected by a connecting plate 17 on their right end faces. The disassembly impact plates 70 and the two corresponding connecting plates 17 are connected by bolts 18.

[0040] When the conical block 8 is fitted onto the anchor cable 7 and pushed into the borehole, the rotary motor 47 controls the left end face of the U-shaped chamber 5 to move to a position corresponding to the right end face of the multiple conical blocks 8. At this time, the fixed impact plate 68 corresponds to the connecting plate 11, and the multiple clearance holes 69 opened on the fixed impact plate 68 correspond one-to-one with the multiple anchor cables 7. The dual-axis motor 65 controls the two drive shafts 66 to drive the connected cams 67 to rotate synchronously. Under the action of multiple compression springs 64, the front and rear cams 67 respectively drive the two U-shaped support plates 63 to move left and right back and forth through the left and right connecting slide plates 62 that are in rolling contact. This drives the fixed impact plates 68 on the left and right sides and the multiple disassembly impact plates 70 to move left and right back and forth synchronously. The fixed impact plates 68 drive the conical blocks 8 into the borehole by reciprocating impacts on the connecting plate 11. The cone block 8 moves within the hole until it passes through the crossbeam steel frame 9 to its maximum stroke. At this point, the cone block 8 is simultaneously locked in the hole and the crossbeam steel frame 9. At this time, multiple anchor cables 7 in the horizontal direction are fixed and locked to the crossbeam steel frame 9 through the cone block 8. Then, U-bolts 13 are placed on the two adjacent connecting plates 11 by hand, and the two adjacent connecting plates 11 are fixed by tightening nuts 14. At this time, multiple anchor cables 7 in the vertical direction are fixed and locked to each other through U-bolts 13, thereby achieving the effect of fixing and locking the anchor cables 7 in both the horizontal and vertical directions. Multiple disassembly impact plates 70 are connected by connecting plates 17 and bolts 18. When an anchor cable 7 fails, the excess connecting plates 17 and bolts 18 can be removed, leaving only one disassembly impact plate 70, which is convenient for disassembling and replacing the anchor cable 7 individually.

[0041] When anchor cable 7 needs replacement or repair, or when the construction project is completed, anchor cable 7 may need to be removed. This involves manually removing the nut 14 from the U-bolt 13 and unloading the U-bolt 13. Then, the rotary motor 47 controls the right end face of the U-shaped chamber 5 to move to a position corresponding to the right end face of the multiple conical blocks 8. At this time, the disassembly impact plate 70 corresponds to the connecting plate 11, and the multiple U-shaped through holes 71 opened in the disassembly impact plate 70 correspond one-to-one with the conical end faces of the multiple conical blocks 8. Repeating the above operation, the dual-axis motor 65 controls two cams 67 to drive the left and right sides... The fixed impact plate 68 and the disassembly impact plate 70 move back and forth synchronously. The disassembly impact plate 70 drives the conical block 8 to move out of the borehole by reciprocating impacting the connecting plate 11 until the conical block 8 exits the crossbeam steel frame 9. After the crossbeam steel frame 9 is manually removed, the anchor cable 7 can be removed. The fixed removal unit 6 can realize the function of fixing and removing the end of the anchor cable 7. By using the reciprocating impact method, multiple conical blocks 8 are brought into or out of the borehole at the same time. The fixing and removal efficiency is high, and the problem of uneven fixing and locking strength at the end of the anchor cable 7 can be avoided.

[0042] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. Furthermore, in the description of the present invention, unless otherwise stated, "multiple," "multiple roots," and "multiple groups" mean two or more.

[0043] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A locking and fixing device for the end of an anchor cable in a foundation pit support, comprising a tracked chassis (1), characterized in that, The tracked chassis (1) is equipped with a support base rotating unit (2) at the upper end, a support arm lifting unit (3) is installed at the upper end of the support base rotating unit (2), a rotating lifting unit (4) is installed on the support arm lifting unit (3), a U-shaped bin (5) is installed on the rotating lifting unit (4), a fixing and dismantling unit (6) is installed inside the U-shaped bin (5), and multiple anchor cables (7) for foundation pit support are evenly placed on the left side of the fixing and dismantling unit (6). The fixed dismantling unit (6) includes sliding grooves (61) on both the left and right sides of the front and rear ends of the U-shaped compartment (5). Connecting slide plates (62) are slidably installed in the sliding grooves (61). U-shaped support plates (63) are installed on the opposite ends of the two connecting slide plates (62). The opposite ends of the two U-shaped support plates (63) are connected on both the front and rear sides by multiple compression springs (64). A dual-axis motor (65) is installed in the middle of the U-shaped compartment (5) through a motor mount. The front and rear output shafts of the dual-axis motor (65) are respectively connected to a transmission that rotates through the front and rear ends of the U-shaped compartment (5). The shaft (66) is equipped with a cam (67) that rolls and contacts the left and right connecting slide plates (62) at one end away from the dual-axis motor (65). The left side of the C-shaped support plate (63) and the left end face of the two connecting slide plates (62) are equipped with a fixed impact plate (68), and the fixed impact plate (68) is evenly provided with multiple clearance holes (69) in the middle. The right side of the C-shaped support plate (63) and the right end face of the two connecting slide plates (62) are equipped with a disassembly impact plate (70), and the lower end of the disassembly impact plate (70) is provided with a U-shaped through hole (71). The anchor cable end locking and fixing device for foundation pit support is used to fix the anchor cable (7) with a conical block (8) at the end. The conical block (8) is slidably sleeved on the right side of the anchor cable (7). Multiple anchor cables (7) are sleeved together on a crossbeam steel frame (9). The crossbeam steel frame (9) is evenly provided with multiple circular oblique holes (10) corresponding to the position of the conical block (8). A connecting plate (11) is installed on the right end of the conical block (8). The connecting plate (11) is symmetrically provided with mounting holes (12) on the upper and lower sides. The two adjacent connecting plates (11) are connected together with a U-bolt (13). The two ends of the U-bolt (13) pass through two adjacent mounting holes (12) on the upper and lower adjacent connecting plates (11). Two nuts (14) are installed on the two threaded ends of the U-bolt (13) for fixing the two adjacent connecting plates (11).

2. The anchor cable end locking and fixing device for foundation pit support according to claim 1, characterized in that: The rotating support unit (2) includes a support cylinder (21) rotatably mounted on the upper middle part of the tracked chassis (1). A support base (22) is mounted on the upper end of the support cylinder (21). A toothed ring (23) is fixedly mounted on the outer surface of the support cylinder (21) and located at the lower end of the support base (22). A motor mounting slot (26) is opened on the right side of the upper end of the tracked chassis (1). A reversible motor (24) is mounted in the motor mounting slot (26) through a motor base. The output shaft of the reversible motor (24) is connected to a transmission gear (25), and the transmission gear (25) meshes with the toothed ring (23).

3. The anchor cable end locking and fixing device for foundation pit support according to claim 1, characterized in that: The support arm lifting unit (3) includes support guard plates (31) symmetrically installed on the front and rear sides of the middle of the support base (22). Rotating shafts (32) are rotatably installed on both the left and right sides between the two support guard plates (31). The rotating shaft (32) on the right side is fixedly sleeved with a support arm (33). A first ear plate (34) is symmetrically installed on the left side of the lower end of the support arm (33). The two first ear plates (34) are rotatably installed together with a rotating rod (35). A first hydraulic push rod (37) is provided between the rotating rod (35) and the rotating shaft (32) on the left side. The two ends of the first hydraulic push rod (37) are respectively hinged to the rotating rod (35) and the rotating shaft (32) on the left side.

4. The anchor cable end locking and fixing device for foundation pit support according to claim 3, characterized in that: The rotating lifting unit (4) includes a passive gear (41) rotatably mounted on the left side of the upper end of the support arm (33). A support platform (42) is mounted on the upper end of the passive gear (41). Connecting rods (45) are rotatably mounted on both the left and right sides of the upper end of the support platform (42) through the second ear plate (43). The connecting rod (45) on the left side is fixedly fitted with a connecting seat (44), and the connecting seat (44) is connected to the middle of the lower end of the C-shaped chamber (5). A second hydraulic push rod (46) is hinged between the connecting rod (45) on the right side and the lower right side of the C-shaped chamber (5). A rotary motor (47) is mounted on the left side of the front end of the support arm (33) through a motor seat, and the output shaft of the rotary motor (47) is connected to an active gear (48) meshing with the passive gear (41).

5. The anchor cable end locking and fixing device for foundation pit support according to claim 1, characterized in that: There are multiple disassembly impact plates (70). A connecting plate (17) is installed on the right end face of two adjacent disassembly impact plates (70). The disassembly impact plates (70) and the corresponding two connecting plates (17) are connected by bolts (18).

6. The anchor cable end locking and fixing device for foundation pit support according to claim 2, characterized in that: A first mudguard plate (15) is installed at the lower end of the support base (22) corresponding to the gear ring (23) and the transmission gear (25), and a second mudguard plate (16) is installed at the upper end of the support arm (33) corresponding to the driven gear (41) and the driving gear (48).

Images