Construction device of cement-soil compaction pile in loess tunnel

Abstract

The application belongs to the technical field of tunnel inner extrusion pile construction, in particular to a loess tunnel inner cement soil extrusion pile construction device, which comprises a crossbeam fixedly installed on a support frame, a swing arm rotatably installed on the crossbeam at an outer end, an auxiliary pulley installed on the top end of the support frame and parallel to a fixed pulley, a steel wire rope passing through the inner end of the swing arm after winding around the top end of the auxiliary pulley, a taper sleeve fixedly installed on the outer part of the steel wire rope, a lock block slidingly arranged on the swing arm, and a lock hole arranged on the crossbeam, when the inner end of the swing arm is lifted to the highest position by the taper sleeve, the inner end of the swing arm is inwardly inclined, the lock block is inserted into the lock hole to lock the swing arm, the part of the steel wire rope below the auxiliary pulley is in a vertical state, and a gravity type loess shovel is located outside the ground pile hole. When the tunnel inner cement soil extrusion pile construction is performed, the normal tunnel excavation process is not occupied, the problem that the extrusion pile construction and other process operations interfere with each other, cross operation, and construction difficulty is large in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel internal compaction pile construction, in particular to a loess tunnel internal cement soil compaction pile construction device. BACKGROUND

[0002] When the stratum under the tunnel structure is new loess, the new loess under the tunnel structure needs to be treated to eliminate its collapsibility. The common treatment method in the tunnel is to use lime soil or cement soil compaction piles for treatment. However, the tunnel in the pipe section is all single-line single-hole freight railway tunnel, the cross section is narrow, the tunnel excavation width is 5.5m, the tunnel driving width is 4m after the completion of the lining construction, and the tunnel width is 3m after the completion of the low side wall construction. It is difficult for general machinery to be deployed, and small machinery is used for tunnel construction. The compaction pile construction interferes with other process operations, cross operation, and the construction difficulty is large. SUMMARY

[0003] Therefore, the present application provides a loess tunnel internal cement soil compaction pile construction device, which can be quickly assembled for tunnel internal cement soil compaction pile construction, does not occupy the normal excavation process of the tunnel, can be disassembled and stored when not in use, does not occupy space, solves the problem of interference between the compaction pile construction and other process operations in the prior art, cross operation, and large construction difficulty, and at the same time, the gravity type Luoyang shovel can automatically unload the soil outside the ground pile hole, greatly improving the construction efficiency and safety.

[0004] In order to achieve the foregoing purpose, the present application provides a loess tunnel internal cement soil compaction pile construction device, which comprises a support frame, a fixed pulley arranged at the top end of the support frame, a steel wire rope having one end connected with a winch and the other end passing through the fixed pulley, and a gravity type Luoyang shovel connected at the bottom end of the steel wire rope, further comprising a cross beam, a swing arm, an auxiliary pulley, a taper sleeve, a lock block and a lock hole.

[0005] The cross beam is fixedly installed on the support frame, and the outer end of the swing arm is rotatably installed on the cross beam.

[0006] The auxiliary pulley is installed at the top end of the support frame and is arranged in parallel with the fixed pulley, and the bottom end of the steel wire rope passes through the top end of the auxiliary pulley and then passes through the inner end of the swing arm.

[0007] The taper sleeve is fixedly installed outside the steel wire rope, and the taper sleeve can lift the swing arm so that the inner end of the swing arm swings upward to the highest position.

[0008] The lock block is slidably arranged on the swing arm, and the lock hole is arranged on the cross beam, and when the inner end of the swing arm swings to the highest position, the lock block is locked by being inserted into the lock hole.

[0009] When the inner end of the swing arm is at the highest position, the part of the steel wire rope below the auxiliary pulley is in a vertical state, and the swing arm is in a state of inner end tilting inward, so that the weight-type backhoe is located outside the ground pile hole.

[0010] In the loess tunnel cement-soil compaction pile construction device, optionally, an axle seat is fixedly installed on the upper surface of the cross beam, shaft holes are arranged on the two sides of the axle seat, a support shaft is fixedly installed on the outer end of the swing arm, the outer end of the support shaft penetrates through the shaft hole, and a lock hole is arranged on the surface of the axle seat.

[0011] In the loess tunnel cement-soil compaction pile construction device, optionally, a through groove is arranged in the support shaft, the lock block is slidingly installed in the through groove, a locking spring is arranged in the through groove and provides elastic force for the lock block to insert the lock hole, and when the lock block is in a staggered state with the lock hole, the outer side surface of the lock block abuts against the inner wall surface of the shaft hole.

[0012] In the loess tunnel cement-soil compaction pile construction device, optionally, the inner end of the swing arm is provided with a passage capable of being penetrated by the taper sleeve, two blocking rods are arranged in the passage, the taper sleeve drives the inner end of the swing arm to swing upward by jacking the blocking rods, when the inner end of the swing arm swings upward, the taper sleeve moves from one side of the inner side surface of the blocking rod to the other side of the blocking rod in a direction away from the outer end of the swing arm after passing the corner, and when the inner end of the swing arm is at the highest position, the taper sleeve can pass between the two blocking rods from bottom to top.

[0013] In the loess tunnel cement-soil compaction pile construction device, optionally, when the inner end of the swing arm is at the highest position, the side surface of the blocking rod at the top is in a horizontal state, and the bottom surface of the taper sleeve is a plane.

[0014] In the loess tunnel cement-soil compaction pile construction device, optionally, clamping grooves are arranged on the two side surfaces of the lock block, a slot is arranged on one side of the outer side wall of the clamping groove, clamping plates are clamped in the clamping grooves, the inner ends of the two clamping plates are respectively fixedly connected with the two blocking rods, the clamping plates are aligned with the slot when the lock block is inserted into the lock hole, and force storage springs are arranged between the blocking rods and the swing arm and used for keeping the two blocking rods at a minimum distance.

[0015] In the loess tunnel cement soil compaction pile construction device, the swing arm is provided with a sliding frame capable of sliding along the length direction, the sliding frame is provided with telescopic sleeves on both sides, the telescopic sleeves are provided with force storage springs, the telescopic sleeves are fixedly connected with the two stop rods at the opposite ends, and the sliding frame is provided with a return spring between the end towards the clamping plate and the swing arm.

[0016] In the loess tunnel cement soil compaction pile construction device, the swing arm is provided with a sliding frame capable of sliding along the length direction, the sliding frame is provided with telescopic sleeves on both sides, the telescopic sleeves are provided with force storage springs, the telescopic sleeves are fixedly connected with the two stop rods at the opposite ends, and the sliding frame is provided with a return spring between the end towards the clamping plate and the swing arm.

[0017] In the loess tunnel cement soil compaction pile construction device, the swing arm is provided with a sliding frame capable of sliding along the length direction, the sliding frame is provided with telescopic sleeves on both sides, the telescopic sleeves are provided with force storage springs, the telescopic sleeves are fixedly connected with the two stop rods at the opposite ends, and the sliding frame is provided with a return spring between the end towards the clamping plate and the swing arm.

[0018] In the loess tunnel cement soil compaction pile construction device, the swing arm is provided with a sliding frame capable of sliding along the length direction, the sliding frame is provided with telescopic sleeves on both sides, the telescopic sleeves are provided with force storage springs, the telescopic sleeves are fixedly connected with the two stop rods at the opposite ends, and the sliding frame is provided with a return spring between the end towards the clamping plate and the swing arm.

[0019] The loess tunnel cement soil compaction pile construction device has the following beneficial effects:

[0020] 1. The simple support frame, winch, steel wire rope and heavy hammer type Luoyang shovel are used to quickly assemble the loess tunnel cement soil compaction pile construction device in the gap of the normal construction cycle of the tunnel after the concrete spraying in the previous excavation cycle is completed, so that the loess tunnel cement soil compaction pile construction is carried out by using the equal strength time of the concrete, the normal excavation process of the tunnel is not occupied, the device can be disassembled and stored when not in use, and the space is not occupied.

[0021] 2. The horizontal beam, vertical beam and swing arm are used to enable the heavy hammer type Luoyang shovel to move horizontally and move out of the ground pile hole range during the process that the heavy hammer type Luoyang shovel completes the soil taking and is lifted to the highest point each time, so that the soil outside the ground pile hole range is unloaded.

[0022] 3. The heavy-duty Luoyang shovel allows for soil unloading outside the pile holes on the ground. Workers no longer need to transfer soil after each unloading operation; a certain amount of soil can be accumulated outside the pile holes before unified disposal, significantly reducing worker workload. Furthermore, the heavy-duty Luoyang shovel eliminates the need to consider the work of ground-based workers assisting with soil collection, allowing winch operators to control the winch more efficiently and improving construction efficiency. Attached Figure Description

[0023] The disclosure of this invention will become more apparent from the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings:

[0024] Figure 1 This is an overall schematic diagram of the conical sleeve of the present invention just entering the channel;

[0025] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is an overall schematic diagram of the crossbeam and longitudinal beams of the present invention;

[0027] Figure 4 For the present invention Figure 1 A partial sectional view in the document;

[0028] Figure 5 For the present invention Figure 4 Enlarged view at point B in the middle;

[0029] Figure 6 For the present invention Figure 5 Overall schematic diagram of the central shaft seat, support shaft and locking block;

[0030] Figure 7 This is a schematic diagram of the bearing seat of the present invention;

[0031] Figure 8 For the present invention Figure 6 Sectional view along the XX direction;

[0032] Figure 9 This is a cross-sectional view of the swing arm of the present invention;

[0033] Figure 10 This is an overall schematic diagram of the stop bar, sliding frame, locking block, top plate, and locking block of the present invention.

[0034] Figure 11 For the present invention Figure 10 A partial breakdown diagram in the image;

[0035] Figure 12 This is a schematic diagram of the locking block of the present invention.

[0036] Reference numerals: 1-Crossbeam; 2-Swing arm; 3-Auxiliary pulley; 4-Conical sleeve; 5-Locking block; 6-Locking hole; 7-Shaft seat; 8-Shaft hole; 9-Support shaft; 10-Through groove; 11-Locking spring; 12-Channel;

[0037] 13-Stop bar; 13.1-First straight section; 13.2-Second straight section; 13.3-Curved section;

[0038] 14-Channel opening; 15-Card slot; 16-Gate opening; 17-Card plate; 18-Storage spring; 19-Sliding frame;

[0039] 20 - Telescopic sleeve; 20.1 - Outer tube body; 20.2 - Inner tube body;

[0040] 21-Reset spring; 22-Top plate; 23-Collar ring; 24-Guide wheel; 25-First strip groove; 26-Second strip groove; 27-Slide rod; 28-Guide rod; 29-Support frame; 30-Fixed pulley; 31-Wire rope; 32-Heavy hammer type Luoyang shovel; 33-Longitudinal beam; 34-Sliding groove. Detailed Implementation

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please refer to Figure 1 This embodiment provides a cement-soil compaction pile construction device for loess tunnels, including a support frame 29, a fixed pulley 30 set at the top of the support frame 29, a wire rope 31 with one end connected to a winch and the other end passing over the fixed pulley 30, and a heavy hammer-type Luoyang shovel 32 connected to the bottom of the wire rope 31. By winding and releasing the wire rope 31 with the winch, the heavy hammer-type Luoyang shovel 32 can be lifted and then hammered into the ground by its own weight to realize the drilling operation.

[0043] Please refer to Figure 1 , Figure 2 , Figures 4 to 6 The cement-soil compaction pile construction device in the loess tunnel of this application also includes a crossbeam 1, a swing arm 2, an auxiliary pulley 3, a cone sleeve 4, a locking block 5, and a locking hole 6.

[0044] The crossbeam 1 is fixedly installed on the support frame 29, and the outer end of the swing arm 2 is rotatably installed on the crossbeam 1;

[0045] The auxiliary pulley 3 is installed at the top of the support frame 29 and is set parallel to the fixed pulley 30. The bottom end of the wire rope 31 passes over the top of the auxiliary pulley 3 and then passes through the inner end of the swing arm 2.

[0046] The cone sleeve 4 is fixedly installed on the outside of the wire rope 31. The cone sleeve 4 can push the swing arm 2 upward so that the inner end of the swing arm 2 swings upward to the highest position.

[0047] The locking block 5 is slidably mounted on the swing arm 2, and the locking hole 6 is mounted on the crossbeam 1. When the inner end of the swing arm 2 swings to the highest position, the locking block 5 locks the swing arm 2 by inserting into the locking hole 6.

[0048] When the inner end of the swing arm 2 is at its highest position, the portion of the wire rope 31 below the auxiliary pulley 3 is in a vertical state, and the inner end of the swing arm 2 is tilted inward, so that the heavy hammer Luoyang shovel 32 is located outside the ground pile hole.

[0049] During construction, the winch continuously pulls the heavy-duty Luoyang shovel 32 upwards, causing the cone sleeve 4 to push against the swing arm 2, and the inner end of the swing arm 2 to swing upwards. As the wire rope 31 swings to a vertical position, the heavy-duty Luoyang shovel 32 moves from above the ground pile hole to its outer side, thus achieving lateral movement of the heavy-duty Luoyang shovel 32. When the inner end of the swing arm 2 swings to its highest position, the heavy-duty Luoyang shovel 32 moves to its outermost position. At this time, the wire rope 31 is in a vertical position in the area below the auxiliary pulley 3. Then, the locking block 5 is inserted into the locking hole 6 to fix the swing arm 2, achieving the effect of the heavy-duty Luoyang shovel 32 being able to unload material outside the ground pile hole.

[0050] Please refer to Figure 2 , Figures 5 to 7 and Figure 12 In this embodiment, a bearing seat 7 is fixedly installed on the upper surface of the crossbeam 1. Shaft holes 8 are provided on both sides of the bearing seat 7. A support shaft 9 is fixedly installed on the outer end of the swing arm 2, and the outer end of the support shaft 9 passes through the shaft hole 8. A locking hole 6 is provided on the surface of the bearing seat 7, and a locking block 5 is slidably installed on the support shaft 9. When the swing arm 2 is in its initial state and during its swinging motion, the locking block 5 and the locking hole 6 are misaligned. When the swing arm 2 swings to its highest inner end, the locking block 5 and the locking hole 6 are aligned, allowing the locking block 5 to be inserted into the locking hole 6.

[0051] Please refer to Figure 8 The support shaft 9 is provided with a through groove 10, the locking block 5 is slidably installed in the through groove 10, and the through groove 10 is provided with a locking spring 11 that provides elastic force for the locking block 5 to be inserted into the lock hole 6. When the locking block 5 and the lock hole 6 are misaligned, the outer side of the locking block 5 abuts against the inner wall surface of the shaft hole 8.

[0052] By setting a locking spring 11, the locking block 5 can be automatically inserted into the locking hole 6 when the swing arm 2 swings to its highest position at its inner end. Specifically, in this embodiment, the side of the locking block 5 away from the support shaft 9 is set as an arc surface that matches the inner wall surface of the shaft hole 8.

[0053] Please refer to Figure 5 and Figure 9 The inner end of the swing arm 2 is provided with a channel 12 through which the cone sleeve 4 can pass. Two stops 13 are provided in the channel 12. The cone sleeve 4 drives the inner end of the swing arm 2 to swing upward through the upper stop 13. When the inner end of the swing arm 2 swings upward, the cone sleeve 4 moves from one side of the inner side of the stop 13 away from the outer end of the swing arm 2, passes through a corner, and moves to the other side of the stop 13. When the inner end of the swing arm 2 is in the highest position, the cone sleeve 4 can pass through the two stops 13 from bottom to top. When it is lowered, the cone sleeve 4 can press down on the top of the two stops 13, thereby providing pressure for the swing arm 2 to reset.

[0054] Please refer to Figure 5 and Figure 10 The channel 12 provides space for the cone sleeve 4 and the wire rope 31 to pass vertically through the swing arm 2. Specifically, in this embodiment, the stop bar 13 includes a first straight portion 13.1 parallel to the swing arm 2, a second straight portion 13.2 perpendicular to the first straight portion 13.1, and an arc-shaped portion 13.3 connecting the inner end of the first straight portion 13.1 to the top end of the second straight portion 13.2. When the swing arm 2 is in the initial position, the swing arm 2 is tilted upward at its inner end. At this time, the stop bar 13 is also tilted upward at its inner end, and the top end of the cone sleeve 4 faces the side of the first straight portion 13.1 near the arc-shaped portion 13.3.

[0055] When the top of the conical sleeve 4 enters the channel 12 and pushes against the stop bar 13, the top of the conical sleeve 4 is inserted between the first straight portions 13.1 of the two stop bars 13, and simultaneously pushes against the two stop bars 13, causing the stop bars 13 to drive the swing arm 2 to swing. As the inner end of the swing arm 2 swings upward, the top of the conical sleeve 4 will slide from between the two first straight portions 13.1 to between the two arc-shaped portions 13.3, and then slide to between the two second straight portions 13.2.

[0056] When the inner end of the swing arm 2 swings to its highest position, the wire rope 31 pulls the cone sleeve 4 upward, and the two stops 13 move in opposite directions under pressure, allowing the cone sleeve 4 to pass between the second straight sections 13.2 of the two stops 13. After the cone sleeve 4 moves to the top of the stops 13, if the wire rope 31 is released, the cone sleeve 4 will press down on the stops 13 under the gravity of the heavy hammer shovel 32, thereby providing pressure for the swing arm 2 to swing back, so as to ensure that the swing arm 2 and the heavy hammer shovel 32 can return to their original positions.

[0057] Furthermore, when the inner end of the swing arm 2 is in its highest position, the side of the stop lever 13 at the top is horizontal, and the bottom surface of the cone sleeve 4 is flat. That is, when the inner end of the swing arm 2 swings to its highest position, the second straight portion 13.2 is horizontal, and thus, when the cone sleeve 4 presses down on the stop lever 13, a more stable pressure can be applied to the stop lever 13.

[0058] The width of the bottom opening 14 of channel 12 is matched with the maximum outer diameter of the conical sleeve 4, and when the conical sleeve 4 is on top of the stop bar 13, the conical sleeve 4 is located inside the swing arm 2. With this arrangement, during the entire process of the conical sleeve 4 pressing down on the stop bar 13 to reset the swing arm 2, because the channel opening 14 is in an inclined state, the lateral distance of the channel opening 14 is less than the bottom outer diameter of the conical sleeve 4. Therefore, the conical sleeve 4 cannot pass through the channel opening 14, ensuring that the conical sleeve 4 can press the swing arm 2 down to its initial position. When the swing arm 2 swings to its initial position, the lateral width of the channel opening 14 matches the maximum outer diameter of the conical sleeve 4, allowing the conical sleeve 4 to pass vertically downwards through the channel opening 14 and exit from inside the swing arm 2.

[0059] Please refer to Figure 5 , Figure 6 and Figure 11 The locking block 5 has slots 15 on both sides, and a groove 16 on one side of the outer wall of the slot 15. A locking plate 17 is engaged in the slot 15. The inner ends of the two locking plates 17 are fixed to the two stop rods 13 respectively. When the locking block 5 is inserted into the lock hole 6, the locking plate 17 is aligned with the groove 16. A storage spring 18 is provided between the stop rod 13 and the swing arm 2 to keep the two stop rods 13 at the minimum distance.

[0060] The minimum distance between the two stop bars 13 is adapted to the outer diameter of the wire rope 31. In the initial state, the locking block 5 is not inserted into the locking hole 6, so that the locking plate 17 is located in the slot 15 and is offset from the slot opening 16. At this time, the outer side of the locking plate 17 is in contact with the outer inner wall of the slot 15, and the slot 15 can limit the locking plate 17, so that when the stop bar 13 on the cone sleeve 4 drives the inner end of the swing arm 2 to swing upward, the two stop bars 13 are stably kept at the minimum distance.

[0061] When the inner end of the swing arm 2 swings to its highest position, the locking block 5 is inserted into the locking hole 6 under the action of the locking spring 11, and the slot 16 moves with the locking block 5 and aligns with the locking plate 17. In this state, if the cone sleeve 4 moves upward, it can push open the two stop rods 13. After the cone sleeve 4 moves above the stop rods 13, the two stop rods 13 return to their minimum distance under the action of the storage spring 18. At this time, the bottom of the cone sleeve 4 can press against the top of the second straight part 13.2 of the two stop rods 13 at the same time.

[0062] Please refer to Figure 5 and Figure 10The swing arm 2 is provided with a sliding frame 19 that can slide along its length. Both sides of the sliding frame 19 are provided with telescopic sleeves 20. The storage spring 18 is located inside the telescopic sleeve 20, and the opposite ends of the two telescopic sleeves 20 are respectively fixed to the two stop rods 13. The end of the sliding frame 19 facing the card plate 17 is provided with a return spring 21 between it and the swing arm 2. A top plate 22 is fixedly provided on one side of the card plate 17. When the card plate 17 moves away from the inner end of the swing arm 2, the top plate 22 can push the locking block 5 out of the lock hole 6.

[0063] Please refer to Figure 9 Both sides of the swing arm 2 are provided with sliding grooves 34, and both sides of the sliding frame 19 are located in the sliding grooves 34. The sliding grooves 34 limit the displacement distance of the sliding frame 19, thereby achieving the effect of limiting the displacement distance of the stop bar 13 and the card plate 17 in the length direction of the swing arm 2.

[0064] Please refer to Figure 5 A guide rod 28 is fixedly installed on the side of the sliding frame 19 away from the inner end of the swing arm 2. The guide rod 28 is slidably disposed inside the swing arm 2. The return spring 21 is sleeved on the outside of the guide rod 28, and the end of the return spring 21 facing the outer end of the swing arm 2 is supported by the swing arm 2. When the stop rod 13 moves away from the inner end of the swing arm 2, the return spring 21 is compressed.

[0065] Please refer to Figure 10 and Figure 11 The telescopic sleeve 20 includes an outer tube 20.1 and an inner tube 20.2. The end of the outer tube 20.1 away from the stop rod 13 is fixedly connected to the inner wall of the sliding frame 19. The end of the inner tube 20.2 away from the stop rod 13 is inserted into the outer tube 20.1, and the end of the inner tube 20.2 facing the stop rod 13 is fixedly connected to the stop rod 13. By setting the telescopic sleeve 20, the opposing or relative movements of the two stop rods 13 can be guided, and the storage spring 18 can be prevented from twisting and deforming.

[0066] When the inner end of the swing arm 2 is at its highest position and the cone sleeve 4 presses down on the stop rod 13, the stop rod 13 drives the sliding frame 19 to move through the telescopic sleeve 20, and the stop rod 13 drives the locking plate 17 and the top plate 22 to move synchronously. During the movement of the top plate 22, it will squeeze the inner wall of one side of the slot 15, causing the locking plate to be pulled out of the locking hole 6. After the locking plate is pulled out of the locking hole 6, the slot 16 and the locking plate 17 are misaligned. Thus, the swing arm 2 is unlocked, so that the swing arm 2 can swing back to the initial position. At the same time, during the swing of the swing arm 2 back to the initial position, the locking block 5 is supported by the inner surface of the shaft hole 8 after being misaligned with the locking hole 6, so that the slot 16 and the locking plate 17 remain misaligned, thereby preventing the two stop rods 13 from moving in opposite directions and ensuring that the cone sleeve 4 can apply a more stable force to the reset of the swing arm 2.

[0067] Please refer to Figure 3A longitudinal beam 33 is slidably mounted on the crossbeam 1. A lifting collar 23 is installed at the bottom of the longitudinal beam 33. When the cone sleeve 4 pushes the swing arm 2, the collar 23 is fitted onto the top of the heavy hammer Luoyang shovel 32. By setting the collar 23, the heavy hammer Luoyang shovel 32 will not shake during lateral movement, thereby preventing the soil at its bottom from falling off and ensuring that it can more effectively unload soil outside the ground pile hole.

[0068] Please refer to Figure 3 The top of the longitudinal beam 33 is equipped with a guide wheel 24, which is shorter than the fixed pulley 30, and the bottom end of the wire rope 31 passes through the guide wheel 24 on the side away from the outer end of the swing arm 2. By setting the guide wheel 24, the wire ropes 31 on both the upper and lower sides of the cone sleeve 4 are in a vertical state, which can better maintain the verticality of the cone sleeve 4 by utilizing the gravity of the heavy hammer Luoyang shovel 32, improve the stability of the cone sleeve 4, and prevent the cone sleeve 4 from swinging.

[0069] During the upward swing of the inner end of the swing arm 2, the pressure of the wire rope 31 on the guide wheel 24 and the force of the heavy hammer shovel 32 on the collar 23 enable the longitudinal beam 33 to move outward synchronously with the heavy hammer shovel 32. During the resetting process of the swing arm 2, the collar 23 remains on top of the heavy hammer shovel 32 under its own weight, thus enabling the longitudinal beam 33 to reset synchronously with the heavy hammer shovel 32.

[0070] In addition, when the swing arm 2 is reset, the collar 23 limits and stabilizes the heavy hammer Luoyang shovel 32, ensuring that the heavy hammer Luoyang shovel 32 will not shake due to lateral movement after reset, keeping the heavy hammer Luoyang shovel 32 aligned with the ground pile hole, improving the hole formation effect of the pile hole, and increasing construction efficiency.

[0071] Please refer to Figure 2 and Figure 3 The longitudinal beam 33 is provided with a first strip groove 25, and the swing arm 2 is provided with a second strip groove 26. A sliding rod 27 is provided between the first strip groove 25 and the second strip groove 26. When the swing arm 2 is in the initial position, the sliding rod 27 is located at the top of the second strip groove 26. When the inner end of the swing arm 2 is in the highest position, the sliding rod 27 is located at the bottom of the second strip groove 26.

[0072] By setting the first strip groove 25, the second strip groove 26 and the slide bar 27, the longitudinal beam 33 can be directly pushed to move laterally during the swing of the swing arm 2, thereby improving the stability of the lateral movement of the longitudinal beam 33.

[0073] The technical scope of this invention is not limited to the contents of the above specification. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the scope of this invention.

Claims

1. A cement-soil compaction pile construction device for loess tunnels, comprising a support frame (29), a fixed pulley (30) disposed at the top of the support frame (29), a wire rope (31) with one end connected to a winch and the other end passing over the fixed pulley (30), and a heavy-duty Luoyang shovel (32) connected to the bottom end of the wire rope (31), characterized in that, It also includes a crossbeam (1), a swing arm (2), an auxiliary pulley (3), a cone sleeve (4), a locking block (5), and a lock hole (6); The crossbeam (1) is fixedly installed on the support frame (29), and the outer end of the swing arm (2) is rotatably installed on the crossbeam (1); The auxiliary pulley (3) is installed at the top of the support frame (29) and is arranged parallel to the fixed pulley (30). The bottom end of the wire rope (31) passes over the top of the auxiliary pulley (3) and then passes through the inner end of the swing arm (2). The cone sleeve (4) is fixedly installed on the outside of the wire rope (31). The cone sleeve (4) can push the swing arm (2) upward so that the inner end of the swing arm (2) swings upward to the highest position. The locking block (5) is slidably disposed on the swing arm (2), and the locking hole (6) is disposed on the crossbeam (1). When the inner end of the swing arm (2) swings to the highest position, the locking block (5) locks the swing arm (2) by inserting into the locking hole (6). When the inner end of the swing arm (2) is at its highest position, the part of the wire rope (31) below the auxiliary pulley (3) is in a vertical state, and the inner end of the swing arm (2) is tilted inward, so that the heavy hammer Luoyang shovel (32) is located outside the ground pile hole. The inner end of the swing arm (2) is provided with a channel (12) through which the cone sleeve (4) can pass. Two stops (13) are provided in the channel (12). The cone sleeve (4) drives the inner end of the swing arm (2) to swing upward by pushing against the stops (13). When the inner end of the swing arm (2) swings upward, the cone sleeve (4) moves from one side of the inner side of the stops (13) away from the outer end of the swing arm (2) through a corner to the other side of the stops (13). When the inner end of the swing arm (2) is in the highest position, the cone sleeve (4) can pass between the two stops (13) from bottom to top. When the inner end of the swing arm (2) is in the highest position, the side of the stop bar (13) at the top is horizontal, the bottom surface of the cone sleeve (4) is flat, the width of the bottom channel opening (14) of the channel (12) is adapted to the maximum outer diameter of the cone sleeve (4), and when the cone sleeve (4) pushes against the stop bar (13), the cone sleeve (4) is located inside the swing arm (2).

2. The cement-soil compaction pile construction device for loess tunnels as described in claim 1, characterized in that, A bearing seat (7) is fixedly installed on the upper surface of the crossbeam (1). Shaft holes (8) are provided on both sides of the bearing seat (7). A support shaft (9) is fixedly installed on the outer end of the swing arm (2), and the outer end of the support shaft (9) passes through the shaft hole (8). The lock hole (6) is provided on the surface of the bearing seat (7), and the lock block (5) is slidably installed on the support shaft (9).

3. The cement-soil compaction pile construction device for loess tunnels as described in claim 2, characterized in that, The support shaft (9) is provided with a through groove (10), the locking block (5) is slidably installed in the through groove (10), and the through groove (10) is provided with a locking spring (11) that provides elastic force for the locking block (5) to be inserted into the lock hole (6). When the locking block (5) and the lock hole (6) are misaligned, the outer side of the locking block (5) abuts against the inner wall surface of the shaft hole (8).

4. The cement-soil compaction pile construction device for loess tunnels as described in claim 1, characterized in that, The locking block (5) has slots (15) on both sides. A slot (16) is provided on one side of the outer wall of the slot (15). A card plate (17) is engaged in the slot (15). The inner ends of the two card plates (17) are respectively fixed to the two stop rods (13). When the locking block (5) is inserted into the lock hole (6), the card plate (17) is aligned with the slot (16). A storage spring (18) is provided between the stop rod (13) and the swing arm (2) to keep the two stop rods (13) at the minimum distance.

5. The cement-soil compaction pile construction device for loess tunnels as described in claim 4, characterized in that, The swing arm (2) is provided with a sliding frame (19) that can slide along its length. Both sides of the sliding frame (19) are provided with telescopic sleeves (20). The energy storage spring (18) is located inside the telescopic sleeve (20), and the opposite ends of the two telescopic sleeves (20) are respectively fixed to the two stop bars (13). A return spring (21) is provided between the end of the sliding frame (19) facing the card plate (17) and the swing arm (2). A top plate (22) is fixedly provided on one side of the card plate (17), and when the card plate (17) moves away from the inner end of the swing arm (2), the top plate (22) can push the lock block (5) out of the lock hole (6).

6. The cement-soil compaction pile construction device for loess tunnels as described in claim 1, characterized in that, A longitudinal beam (33) is slidably arranged on the crossbeam (1). A lifting collar (23) is installed at the bottom of the longitudinal beam (33). When the cone sleeve (4) pushes against the swing arm (2), the collar (23) is fitted on the top of the heavy hammer Luoyang shovel (32).

7. The cement-soil compaction pile construction device for loess tunnels as described in claim 6, characterized in that, The top of the longitudinal beam (33) is provided with a guide wheel (24) with a height less than that of the fixed pulley (30), and the bottom end of the wire rope (31) passes through the guide wheel (24) on the side away from the outer end of the swing arm (2).

8. A cement-soil compaction pile construction device for loess tunnels as described in claim 6, characterized in that, The longitudinal beam (33) is provided with a first strip groove (25), and the swing arm (2) is provided with a second strip groove (26). A sliding rod (27) is provided between the first strip groove (25) and the second strip groove (26). When the swing arm (2) is in the initial position, the sliding rod (27) is located at the top of the second strip groove (26). When the inner end of the swing arm (2) is in the highest position, the sliding rod (27) is located at the bottom of the second strip groove (26).

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