A tunneling device for caisson construction

Abstract

This invention relates to the field of caisson construction technology and discloses a tunneling device for caisson construction. The device comprises: an electric suspended boom with hydraulic outriggers mounted on its ground-facing side, the hydraulic outriggers supporting the electric suspended boom and adjusting its height; a diagonal brace located on the outside of the hydraulic outriggers for auxiliary support; a tilt alarm component located on the outside of the electric suspended boom for triggering an alarm when the boom tilts; a U-shaped frame located on the moving end of the electric suspended boom, capable of lateral and longitudinal displacement under the drive of the boom; and a tunneling drive assembly located on the U-shaped frame, its drive end having a pusher assembly formed by several push rod components. The purpose of this tunneling device for caisson construction is to solve the tilting and displacement problems that easily occur when the concrete structure sinks during caisson construction.

Description

Technical Field

[0001] This invention relates to the field of caisson construction technology, specifically to a tunneling device for caisson construction. Background Technology

[0002] During caisson construction, the use of tunneling equipment allows for simultaneous excavation, sinking, and wall extension of the caisson under the combined protection of the prefabricated cutting edge and a section of the caisson wall, until the unstable aquifer is penetrated and the bedrock is reached. The use of tunneling equipment effectively improves construction efficiency while ensuring the stability and safety of the caisson sinking process. Caissons are often installed in certain narrow areas to take advantage of the advantages of caisson construction technology, such as deeper construction, less impact on the surrounding environment, and the ability to construct in areas with complex geological and hydrological conditions. These advantages enable efficient and safe caisson construction even in narrow areas. In addition, caisson construction can reduce the amount of excavation, transportation, and backfilling work, lower project costs, and shorten the construction period.

[0003] In existing technologies, caisson construction mostly relies on gravity to achieve the sinking effect. However, this construction method has a significant drawback: it cannot guarantee uniform stress on the concrete structure. As the caisson needs to pass through different geological layers during excavation, the bearing capacity and stability of each soil layer vary. This makes the concrete structure prone to tilting during sinking. When the caisson sinks to a soil layer with lower bearing capacity, that part of the soil may not be able to provide sufficient support, causing the caisson to tilt at that location. A tilted caisson not only affects the smooth progress of the excavation work but may also cause the excavation direction to deviate, thus causing inconvenience to the construction process. In addition, a tilted caisson may also threaten the stability and safety of the concrete structure. In a tilted state, the concrete structure may bear uneven loads, leading to stress concentration and cracks within the structure. These problems will not only reduce the load-bearing capacity of the caisson but may also pose safety hazards for subsequent construction and use. Summary of the Invention

[0004] The purpose of this invention is to solve the problem of tilting and displacement that easily occurs when the concrete structure sinks during the construction of caissons, and to propose a tunneling device for caisson construction.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows:

[0006] A tunneling device for caisson construction, comprising:

[0007] The electric suspension boom has hydraulic outriggers on its surface closest to the ground. The hydraulic outriggers are used to support the electric suspension boom and adjust its height.

[0008] The diagonal brace is located on the outside of the hydraulic outrigger and is used to provide auxiliary support for the hydraulic outrigger.

[0009] A tilt alarm component is located on the outside of the electric boom and is used to trigger an alarm when the electric boom tilts.

[0010] The U-shaped frame is installed on the moving end of the electric suspension arm, and it can move laterally and longitudinally under the drive of the electric suspension arm.

[0011] The tunneling drive assembly is mounted on a truss, and its drive end is equipped with a push-down component composed of several push rod assemblies. The push-down component is also equipped with a multi-angle tunneling assembly to excavate caissons at different positions and depths.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] Furthermore, a base is fixedly installed at the end of the hydraulic outrigger away from the electric suspension arm, and at least three support arms are fixedly installed on the outer side of the base. Reinforcing ribs are fixedly installed between the support arms and the hydraulic outrigger, and locking casters are fixedly installed on the surface of the support arms near the ground.

[0014] Furthermore, the diagonal brace includes:

[0015] The first connecting clamp is fitted onto the outside of the hydraulic outrigger and is connected to the outside of the hydraulic outrigger.

[0016] The diagonal brace has one end hinged to the outside of the first connecting clamp, and the other end hinged to a stable base connected to the ground.

[0017] A reinforcing rod, inserted through the base and with one end extending into the soil; and

[0018] The lateral connecting part is connected to the diagonal brace at one end and to the hydraulic outrigger at the other end.

[0019] Furthermore, the lateral connecting portion includes:

[0020] The first hinge seat is fixedly installed on the surface of the diagonal brace;

[0021] A reinforcing rod, one end of which is hinged to the inside of the first hinge seat; and

[0022] The second connecting clamp is hinged to the other end of the reinforcing rod and connected to the hydraulic outrigger.

[0023] Furthermore, the tilt alarm component includes:

[0024] The protective cover is fixedly installed on the outside of the electric suspension arm, and its entire structure is made of transparent acrylic sheet;

[0025] The suspension rope is fixedly installed at one end to the inside of the protective cover, and a reflective object is fixedly installed at the other end, wherein the surface of the reflective object is shiny.

[0026] A diffuse reflection type infrared photoelectric switch is fixedly installed inside the protective cover; and

[0027] The alarm is fixedly installed on the outside of the protective cover and electrically connected to a diffuse infrared photoelectric switch.

[0028] Furthermore, the tunneling propulsion drive assembly includes:

[0029] The drive motor is fixedly installed on the surface of the frame away from the electric suspension arm;

[0030] The screw is fixedly installed on the output end of the drive motor, and it can rotate axially under the drive of the drive motor.

[0031] The guide rod is fixedly installed on the surface of the frame away from the electric suspension arm and is arranged parallel to the screw rod; and

[0032] The U-shaped sleeve is threaded to the outside of the screw and slidably connected to the guide rod.

[0033] Furthermore, the push rod assembly includes:

[0034] Straight rods are set on both sides of the U-shaped sleeve and connected to each other. The number of straight rods is set to a certain number and is divided into two groups.

[0035] The threaded portion is fixedly installed on one end of the straight rod; and

[0036] A threaded connection groove is formed on the other end of the straight rod and is adapted to the threaded part. Several straight rods can be connected to the threaded part and the threaded connection groove to form a long push rod. Two sets of long push rods together form a pusher to move downward.

[0037] Furthermore, a connecting groove is provided on the outer wall of the straight rod, and a fixing bolt that is connected to the connecting groove is provided through the surface of the U-shaped sleeve. The straight rod and the U-shaped sleeve are connected to each other through the connecting groove and the fixing bolt. A guide sleeve is also fixedly installed on the side wall of the U-shaped frame. The straight rod is located inside the guide sleeve and can slide vertically within the guide sleeve.

[0038] Furthermore, the multi-angle tunneling component includes:

[0039] A cross-shaped mounting bracket is fixedly installed on the end of the lowest straight rod, wherein a universal adjustment seat is provided at the end of the cross-shaped mounting bracket away from the straight rod;

[0040] The mounting base is set on the universal adjustment base, wherein the mounting base is connected to the cross mounting bracket through the universal adjustment base;

[0041] The cylinder is installed through the center of the mounting base, with one end near the ground being open.

[0042] The drive motor is fixedly installed on the surface of the cylinder away from the ground, and its output end extends through and into the inside of the cylinder.

[0043] A tunneling drill bit, fixedly mounted on the output end of a drive motor, with one end extending to the outside of the casing; and

[0044] The conveying pipe has one end fixedly installed on the outside of the cylinder and is connected to the cylinder.

[0045] Furthermore, the universal adjustment seat includes:

[0046] The first ball head seat is fixedly installed on the end of the cross mounting bracket away from the straight rod, and there are no fewer than four of them, which are symmetrically distributed around the center of the cross mounting bracket;

[0047] The first universal ball joint is located inside the first ball joint seat, and its number and distribution position are adapted to the first ball joint seat;

[0048] A hydraulic push rod is fixedly installed on the outside of the first universal ball joint, and its output end is fixedly installed with a second universal ball joint.

[0049] The second ball joint is fixedly installed on the side surface of the mounting base near the cross mounting bracket, and the second universal ball joint is located inside the second ball joint.

[0050] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0051] This invention achieves flexible adjustment of the height and posture of the tunneling device through the design of an electric suspension boom and hydraulic outriggers. The hydraulic outriggers not only provide stable support for the electric suspension boom but also adapt to different construction environments and geological conditions by adjusting their height. This design allows the tunneling device to maintain a stable posture during tunneling, effectively avoiding the problem of caisson tilting caused by differences in soil bearing capacity. Secondly, the addition of the inclined bracing further enhances the stability of the tunneling device. As an auxiliary support for the hydraulic outriggers, the inclined bracing provides additional support force during tunneling, ensuring stable operation of the tunneling device under complex geological conditions. This design not only improves tunneling efficiency but also reduces safety risks during construction. Furthermore, the addition of a tilt alarm component provides real-time safety monitoring of the tunneling process. When the boom tilts, the tilt alarm component immediately sounds an alarm, reminding operators to adjust the attitude of the tunneling device in time. This design helps to detect and correct the tilting problem of the caisson in a timely manner, avoiding deviation of the tunneling direction and subsequent construction hazards caused by tilting. In addition, the design of the U-shaped frame and the tunneling push drive component allows the tunneling device to flexibly cope with the tunneling needs of caissons at different positions and depths. The U-shaped frame can achieve lateral and longitudinal displacement under the drive of the electric suspension boom, while the tunneling push drive component achieves precise tunneling at different positions and depths through the combination of push rod components and multi-angle tunneling components. This design not only improves tunneling efficiency, but also ensures accuracy and safety during the tunneling process, effectively overcoming the tilting and deviation problems in the caisson construction process mentioned in the background technology, and improving construction efficiency and quality. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the connection structure between the electric suspension arm and the hydraulic outrigger of the present invention;

[0053] Figure 2 This is a schematic diagram of the overall connection structure of the present invention;

[0054] Figure 3 This is a schematic diagram of the connection structure between the hydraulic outrigger and the diagonal brace of the present invention;

[0055] Figure 4 This is a schematic diagram of the connection structure of the tilt alarm component of the present invention;

[0056] Figure 5 This is a schematic diagram of the connection structure between the U-shaped part and the tunneling propulsion drive component of the present invention;

[0057] Figure 6 This is a schematic diagram of the connection structure of the push rod assembly of the present invention;

[0058] Figure 7 This is a schematic diagram of the connection structure of the universal adjustment seat of the present invention.

[0059] In the diagram: 1. Electric suspension boom; 2. Hydraulic outriggers; 3. Diagonal brace; 31. First connecting clamp; 32. Diagonal brace rod; 33. Stabilizing seat; 34. Reinforcing rod; 35. Lateral connection; 351. First hinge seat; 352. Reinforcing rod; 353. Second connecting clamp; 4. Tilt alarm assembly; 41. Protective cover; 42. Suspension rope; 43. Reflector; 44. Diffuse reflection infrared photoelectric switch; 45. Alarm; 5. U-shaped frame; 6. Tunneling propulsion drive assembly; 61. Drive motor; 62. Screw; 63. Guide rod; 64. U-shaped sleeve; 7. Push rod assembly; 71. Straight rod; 72. Threaded part; 73. Threaded connection groove; 8. Multi-angle tunneling assembly; 81. Cross mounting bracket; 82. Universal adjustment seat; 821. First ball head seat; 822. First universal ball head; 823. Hydraulic push rod; 824. Second universal ball head; 825. Second ball head seat; 83. Mounting seat; 84. Cylinder; 85. Drive motor; 86. Tunneling drill bit; 87. Delivery pipe; 9. Base; 10. Support arm; 11. Reinforcing rib; 12. Locking universal wheel; 13. Connection groove; 14. Fixing bolt; 15. Guide sleeve. Detailed Implementation

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0061] Combination Figures 1-7 As shown, a tunneling device for caisson construction according to the present invention includes:

[0062] The electric suspension arm 1 has a hydraulic outrigger 2 on its surface near the ground. The hydraulic outrigger 2 is used to support the electric suspension arm 1 and adjust the height of the electric suspension arm 1. The hydraulic outrigger 2 and the electric suspension arm 1 are connected to each other through a hinge seat so that there is no obstruction to movement during the adjustment of support.

[0063] The diagonal brace 3 is located on the outside of the hydraulic outrigger 2 and is used to provide auxiliary support for the hydraulic outrigger 2.

[0064] The tilt alarm component 4 is located on the outside of the electric suspension arm 1 and is used to trigger an alarm when the electric suspension arm 1 tilts.

[0065] The U-shaped frame 5 is installed on the moving end of the electric suspension arm 1, and it can move laterally and longitudinally under the drive of the electric suspension arm 1.

[0066] The tunneling drive assembly 6 is mounted on the truss 5. Its drive end is equipped with a push-down component composed of several push rod assemblies 7. The push-down component is also equipped with a multi-angle tunneling assembly 8 to excavate caissons at different positions and depths.

[0067] The tunneling device is centered around an electric suspended boom 1, which achieves stable support and height adjustment via hydraulic outriggers 2. The hydraulic outriggers 2 are mounted on the ground-facing side of the electric suspended boom 1, and are connected to it via hinged joints. This design ensures that the hydraulic outriggers 2 can rotate flexibly without obstructing the movement of the electric suspended boom 1 when adjusting the support height, thus enabling precise adjustment of the height and posture of the electric suspended boom 1. To further enhance the stability of the tunneling device, a diagonal brace 3 is located on the outside of the hydraulic outriggers 2, serving as auxiliary support. Through its unique structural design, the diagonal brace 3 provides additional support to the hydraulic outriggers 2 during tunneling, ensuring stable operation of the tunneling device under complex geological conditions. A tilt alarm component 4 is located on the outside of the electric suspended boom 1 to monitor its tilt status in real time. If the electric suspended boom 1 tilts, the tilt alarm component 4 will immediately issue an alarm, reminding the operator to adjust the posture of the tunneling device promptly. This avoids deviations in the excavation direction and potential hazards in subsequent construction caused by the tilting of the caisson. The U-shaped frame 5, as a crucial part of the excavation device, is mounted on the moving end of the electric suspension boom 1. Driven by the electric suspension boom 1, the U-shaped frame 5 can achieve lateral and longitudinal displacement, thus adapting to the excavation needs of caissons at different locations and depths. The excavation push-drive component 6 is mounted on the U-shaped frame 5, and its drive end is composed of several push rod components 7 spliced ​​together to form a pushing and lowering component. The pushing and lowering component is also equipped with multi-angle excavation components 8, enabling the excavation... The device can perform precise excavation of caissons at different locations and depths. During the excavation process, the excavation drive component 6 drives the extension and retraction of the push rod component 7, thereby driving the multi-angle excavation component 8 to perform excavation operations, thus achieving effective excavation of the caisson. In summary, the caisson construction excavation device achieves efficient and stable excavation operations of caissons at different locations and depths through the coordinated work of components such as the electric suspension boom 1, hydraulic outriggers 2, inclined support 3, tilt alarm component 4, U-shaped frame 5, and excavation drive component 6.

[0068] In a preferred embodiment, the present invention may be further configured as follows: Figure 1 , Figure 2As shown; a base 9 is fixedly installed at the end of the hydraulic outrigger 2 away from the electric suspension arm 1. At least three support arms 10 are fixedly installed on the outer side of the base 9. Reinforcing ribs 11 are fixedly installed between the support arms 10 and the hydraulic outrigger 2. Locking casters 12 are fixedly installed on the surface of the support arms 10 near the ground. Based on the original tunneling device, the structure of the hydraulic outrigger 2 has been further optimized. Specifically, the base 9 is fixedly installed at the end of the hydraulic outrigger 2 away from the electric suspension arm 1. This design not only enhances the stability of the hydraulic outrigger 2 but also provides it with a wider support foundation. At least three support arms 10 are fixedly installed on the outer side of the base 9. These support arms 10 are radially distributed around the base 9, forming a stable triangular support structure. This design not only... This design improves the stability of the tunneling device under complex geological conditions and enables it to better adapt to different terrains and construction environments. In addition, to further enhance the connection strength between the support arm 10 and the hydraulic outriggers 2, reinforcing ribs 11 are fixedly installed between them. The presence of reinforcing ribs 11 not only improves the overall rigidity of the structure but also reduces the risk of deformation and damage caused by external forces. Finally, locking casters 12 are fixedly installed on the surface of the support arm 10 near the ground. Locking casters 12 not only have the flexibility and mobility of ordinary casters but can also be fixed in place by locking mechanisms, thus providing stable support when needed. This design allows the tunneling device to maintain a stable posture during tunneling and also facilitates flexible movement and adjustment on the construction site.

[0069] In a preferred embodiment, the present invention may be further configured as follows: Figure 1 , Figure 3 As shown; the diagonal brace 3 includes:

[0070] The first connecting clamp 31 is sleeved on the outside of the hydraulic outrigger 2 and is connected to the outside of the hydraulic outrigger 2.

[0071] The diagonal brace 32 has one end hinged to the outside of the first connecting clamp 31, and the other end hinged to a stable base 33 that is connected to the ground.

[0072] Reinforcing rod 34, which is installed through the stabilizing base 33 and extends one end into the soil; and

[0073] The transverse connecting part 35 is connected at one end to the diagonal brace 32 and at the other end to the hydraulic outrigger 2. The first connecting clamp 31 is fitted onto the outside of the hydraulic outrigger 2 and connected to the outside of the hydraulic outrigger 2. This design allows the diagonal brace 3 to fit tightly against the hydraulic outrigger 2, thus forming a stable support point. Next, one end of the diagonal brace 32 is hinged to the outside of the first connecting clamp 31, and the other end is hinged to a stable base 33 connected to the ground. This hinged design allows the diagonal brace 32 to adjust its tilt angle according to actual needs, thereby achieving effective support for the hydraulic outrigger 2 and ensuring stability. The connection between the base 33 and the ground further enhances the stability of the diagonal brace 3. In addition, the reinforcing rod 34 is installed through the base 33, with one end extending into the soil. The presence of the reinforcing rod 34 not only improves the connection strength between the base 33 and the ground, but also further enhances the overall stability of the diagonal brace 3 by penetrating into the soil. Finally, one end of the transverse connection 35 is connected to the diagonal brace 32, and the other end is connected to the hydraulic outrigger 2. This design not only increases the number of connection points between the diagonal brace 3 and the hydraulic outrigger 2, but also further improves the stability and rigidity of the entire support structure through transverse connection.

[0074] In a preferred embodiment, the present invention may be further configured as follows: Figure 2 , Figure 3 As shown; the transverse connecting part 35 includes:

[0075] The first hinge seat 351 is fixedly installed on the surface of the diagonal brace 32;

[0076] A reinforcing rod 352, one end of which is hinged to the inner side of the first hinge seat 351; and

[0077] The second connecting clamp 353 is hinged to the other end of the reinforcing rod 352 and connected to the hydraulic outrigger 2. The first hinge seat 351 is fixedly installed on the surface of the diagonal brace 32, serving as the connection point between the reinforcing rod 352 and the diagonal brace 32. This hinge design allows the reinforcing rod 352 to rotate flexibly within a certain range to adapt to support requirements at different angles and directions. Then, one end of the reinforcing rod 352 is hinged to the inner side of the first hinge seat 351, and the other end is hinged to the second connecting clamp 353. The presence of the reinforcing rod 352... This not only increases the connection path between the diagonal brace 32 and the hydraulic outrigger 2, but also improves the stability of the entire support structure through its rigidity and strength. Finally, the second connecting clamp 353 is hinged to the other end of the reinforcing rod 352 and connected to the hydraulic outrigger 2. This design allows the transverse connecting part 35 to fit tightly against the hydraulic outrigger 2, thus forming an additional support point. At the same time, the hinged design of the second connecting clamp 353 also allows it to rotate within a certain range to accommodate the slight movement of the hydraulic outrigger 2 during the tunneling process.

[0078] In a preferred embodiment, the present invention may be further configured as follows: Figure 1 , Figure 4 As shown; the tilt alarm component 4 includes:

[0079] The protective cover 41 is fixedly installed on the outside of the electric suspension arm 1, and its entire body is made of transparent acrylic sheet;

[0080] The suspension rope 42 is fixedly installed at one end to the inside of the protective cover 41, and a reflector 43 is fixedly installed at the other end, wherein the surface of the reflector 43 is set to be shiny.

[0081] A diffuse reflection infrared photoelectric switch 44 is fixedly installed inside the protective cover 41; and

[0082] An alarm 45 is fixedly installed on the outside of a protective cover 41 and electrically connected to a diffuse infrared photoelectric switch 44. The protective cover 41 is fixedly installed on the outside of the electric suspension arm 1 and is made entirely of transparent acrylic sheet. This material not only has good transparency but also effectively protects the internal electronic components from interference and damage from the external environment. Next, one end of the suspension rope 42 is fixedly installed on the inside of the protective cover 41, and the other end is fixedly installed with a reflector 43. The reflector 43 has a bright surface and can reflect infrared signals, thus working in conjunction with the diffuse infrared photoelectric switch 44. The diffuse infrared photoelectric switch 44 is also fixedly installed on the inside of the protective cover 41. Its working principle is to emit infrared signals and receive the reflected signals. Under normal circumstances, when the electric suspension arm 1 is parallel to the ground, the reflector 43, due to the suspension of the suspension rope 42, will not remain at the transceiver end of the diffuse infrared photoelectric switch 44. Therefore, the diffuse infrared photoelectric switch 44 cannot receive the reflected signals. The entire alarm 45 will not sound an alarm. However, when the electric suspension arm 1 tilts, the suspension rope 42 and the reflector 43 will also tilt, so that the reflector 43 is at the transceiver end of the diffuse infrared photoelectric switch 44. At this time, the infrared signal emitted by the diffuse infrared photoelectric switch 44 will be reflected back by the reflector 43 and received by it, thereby triggering the alarm 45 to sound an alarm. The alarm 45 is fixedly installed on the outside of the protective cover 41 and is electrically connected to the diffuse infrared photoelectric switch 44. Once the diffuse infrared photoelectric switch 44 receives the reflected signal, it will immediately send an electrical signal to the alarm 45, causing it to sound a loud alarm to remind nearby personnel to pay attention to the tilt of the electric suspension arm 1 and take appropriate measures to adjust the corresponding hydraulic outriggers 2 to prevent danger. In addition, a battery is also provided on the inside of the protective cover 41 to power the diffuse infrared photoelectric switch 44 and the alarm 45, ensuring that they can work normally under any circumstances.

[0083] In a preferred embodiment, the present invention may be further configured as follows: Figure 1 , Figure 5 As shown; the tunneling propulsion drive assembly 6 includes:

[0084] The drive motor 61 is fixedly installed on the surface of the U-shaped frame 5 away from the electric suspension arm 1;

[0085] The screw 62 is fixedly installed on the output end of the drive motor 61, and it can rotate axially under the drive of the drive motor 61;

[0086] Guide rod 63 is fixedly installed on the surface of the frame 5 away from the electric suspension arm 1 and is arranged parallel to the screw rod 62; and

[0087] The U-shaped sleeve 64 is threaded to the outside of the screw 62 and slidably connected to the guide rod 63. The drive motor 61 is fixedly mounted on the surface of the U-shaped frame 5 away from the electric suspension arm 1, serving as the power source for the tunneling propulsion drive assembly 6. The drive motor 61 converts electrical energy into mechanical energy through its internal electromagnetic induction principle, thereby outputting rotational torque. Then, the screw 62 is fixedly mounted on the output end of the drive motor 61 and directly connected to the output shaft of the drive motor 61. When the drive motor 61 starts, its output shaft drives the screw 62 to rotate axially. The outer side of the screw 62 is machined with helical threads, which are adapted to the threaded holes on the surface of the U-shaped sleeve 64 to achieve a threaded connection. At the same time, the guide rod 63 is also fixed. Installed on the side surface of the U-shaped frame 5 away from the electric suspension arm 1, and arranged parallel to the screw 62, the guide rod 63 mainly provides guidance and support for the U-shaped sleeve 64 during vertical displacement, ensuring that it can move up and down smoothly. As one of the key components of the tunneling propulsion drive assembly 6, the U-shaped sleeve 64 has threaded holes that match the screw 62 and through holes that match the guide rod 63 on its surface. When the drive motor 61 drives the screw 62 to rotate, the U-shaped sleeve 64 will be driven by the screw 62 to move vertically due to the meshing of the threads. At the same time, the U-shaped sleeve 64 is slidably connected to the guide rod 63 through the through holes on its surface, ensuring that it can remain smooth and stable during vertical displacement.

[0088] In a preferred embodiment, the present invention may be further configured as follows: Figure 5 , Figure 6 As shown; the push rod assembly 7 includes:

[0089] Straight rods 71 ​​are provided on both sides of the U-shaped sleeve 64 and are interconnected with the U-shaped sleeve 64. The number of straight rods 71 ​​is set to several and is divided into two groups.

[0090] The threaded portion 72 is fixedly installed on one end of the straight rod 71; and

[0091] A threaded connection groove 73 is formed on the other end of the straight rod 71 and is adapted to the threaded part 72. Several straight rods 71 ​​can be connected to the threaded part 72 and the threaded connection groove 73 to form a long push rod. The two sets of long push rods together form a pushing and lowering component. The push rod assembly 7 is a key component in the tunneling device used to realize tunneling propulsion. Its main function is to combine several straight rods 71 ​​into a long push rod and use the telescoping property of the long push rod to push the tunneling device downward. Specifically, the push rod assembly 7 is composed of key components such as straight rods 71, threaded part 72, and threaded connection groove 73. To achieve its pushing function, straight rods 71 ​​are positioned on both sides of the U-shaped sleeve 64 and interconnected with it. Several straight rods 71 ​​are arranged in two equal groups, located on both sides of the U-shaped sleeve 64. This design allows the push rod assembly 7 to be evenly distributed on both sides of the tunneling device, thus achieving a stable pushing effect. Next, threaded portions 72 are fixedly installed on one end of each straight rod 71. The outer side of the threaded portion 72 is machined with helical threads, which are adapted to threaded connection grooves 73 to achieve threaded connection between the straight rods 71. At this time, the threaded connection groove 73 is formed on the other end of the straight rod 71 and is adapted to the threaded part 72. When it is necessary to combine two or more straight rods 71 ​​together, simply screw the threaded part 72 of one straight rod 71 into the threaded connection groove 73 of another straight rod 71. This threaded connection method is not only simple and reliable, but also easy to disassemble and reassemble. During the operation of the push rod assembly 7, several straight rods 71 ​​can form a long push rod through the threaded connection between the threaded part 72 and the threaded connection groove 73. Due to the tightness of the threaded connection, the long push rod can maintain its position during the extension and retraction process. The stable structure is not prone to deformation or breakage. At the same time, by adjusting the number and combination of straight rods 71, the length and extension range of the long push rods can be flexibly adjusted to adapt to different tunneling depths and progress requirements. Finally, the two sets of long push rods together form the pushing and lowering component, which is used to push the tunneling device to move downward. During the tunneling process, as the tunneling depth increases, the pushing and lowering component will gradually extend and contact the tunneling face through the pushing surface at its end, thereby generating a downward thrust. This thrust can overcome the resistance during the tunneling process, enabling the tunneling device to move downward and tunnel stably.

[0092] In a preferred embodiment, the present invention may be further configured as follows: Figure 5 , Figure 6As shown; a connecting groove 13 is provided on the outer wall of the straight rod 71, and a fixing bolt 14 is provided through the surface of the U-shaped sleeve 64 to connect with the connecting groove 13. The straight rod 71 and the U-shaped sleeve 64 are connected to each other through the connecting groove 13 and the fixing bolt 14. A guide sleeve 15 is also fixedly installed on the side wall of the U-shaped frame 5. The straight rod 71 is located inside the guide sleeve 15 and can slide vertically within the guide sleeve 15. In the design of the push rod assembly 7, in order to more stably connect the straight rod 71 and the U-shaped sleeve 64 and maintain the straight rod 71 during the tunneling process, For vertical sliding stability, a connection method using connecting grooves 13 and fixing bolts 14 is adopted. Simultaneously, to guide the vertical sliding of the straight rod 71, guide sleeves 15 are fixedly installed on the side wall of the U-shaped frame 5. Specifically, connecting grooves 13 are formed on the outer wall of the straight rod 71, extending along the length of the straight rod 71, providing space for the fixing bolts 14 to pass through. Fixing bolts 14, which connect to the connecting grooves 13, are threaded through the surface of the U-shaped sleeve 64. When it is necessary to connect the straight rod 71 to the U-shaped sleeve 64, simply connect the connecting grooves 13 to the U-shaped sleeve 64. The connecting groove 13 is aligned with the fixing bolt 14 on the U-shaped sleeve 64, and then the fixing bolt 14 is tightened so that it passes through the U-shaped sleeve 64 and is firmly inserted into the connecting groove 13. In this way, the straight rod 71 is securely connected to the U-shaped sleeve 64 and can maintain a relatively fixed position during tunneling. Simultaneously, to guide the vertical sliding of the straight rod 71 during tunneling, a guide sleeve 15 is fixedly installed on the side wall of the U-shaped frame 5. The inner diameter of the guide sleeve 15 is slightly larger than the outer diameter of the straight rod 71, allowing the straight rod 71 to slide smoothly vertically within the guide sleeve 15. This design does not... Not only does it ensure the stability of the straight rod 71 during vertical sliding, it also reduces frictional resistance during sliding and improves tunneling efficiency. During tunneling, as the tunneling depth increases, the U-shaped sleeve 64 moves vertically under the drive of the drive motor 61 and the screw 62. Since the straight rod 71 and the U-shaped sleeve 64 are connected to each other through the connecting groove 13 and the fixing bolt 14, the straight rod 71 will also slide vertically. At the same time, the straight rod 71 maintains a stable sliding trajectory under the guidance of the guide sleeve 15, ensuring that the tunneling device can move down and tunnel smoothly.

[0093] In a preferred embodiment, the present invention may be further configured as follows: Figure 5 , Figure 7 As shown; the multi-angle tunneling component 8 includes:

[0094] A cross-shaped mounting bracket 81 is fixedly installed on the end of the lowest straight rod 71, wherein a universal adjustment seat 82 is provided at the end of the cross-shaped mounting bracket 81 away from the straight rod 71;

[0095] Mounting base 83 is disposed on universal adjustment base 82, wherein mounting base 83 is interconnected with cross mounting bracket 81 through universal adjustment base 82;

[0096] The cylinder 84 is disposed through the center of the mounting base 83, with one end near the ground being open.

[0097] The drive motor 85 is fixedly installed on the surface of the cylinder 84 away from the ground, and its output end extends through and into the inside of the cylinder 84.

[0098] The drilling bit 86 is fixedly mounted on the output end of the drive motor 85, with one end extending to the outside of the barrel 84; and

[0099] The conveying pipe 87, one end of which is fixedly installed on the outside of the cylinder 84 and connected to the cylinder 84, is a key component of the multi-angle tunneling assembly 8 for caisson construction. Its main function is to flexibly adjust the tunneling angle through the universal adjustment seat 82 and drive the tunneling drill bit 86 to perform tunneling operations using the drive motor 85. At the same time, the excavated soil is transported outward through the conveying pipe 87. Specifically, the multi-angle tunneling assembly 8 consists of key components such as the cross mounting frame 81, the universal adjustment seat 82, the mounting base 83, the cylinder 84, the drive motor 85, the tunneling drill bit 86, and the conveying pipe 87. The cross mounting frame 81 is fixedly installed at the bottom. At the end of the straight rod 71, serving as a support and connecting component for the multi-angle tunneling assembly 8, a universal adjustment seat 82 is located at the end of the cross mounting frame 81 away from the straight rod 71. Through its internal universal adjustment mechanism, the mounting seat 83 can be flexibly adjusted in multiple directions to meet the needs of different angles during tunneling. The mounting seat 83 is mounted on the universal adjustment seat 82 and connected to the cross mounting frame 81 via the universal adjustment seat 82. This connection method not only ensures the stability of the mounting seat 83 but also allows it to change angles accordingly with the adjustment of the universal adjustment seat 82. The cylinder 84 is inserted through the center of the mounting seat 83, and its support... The end near the ground is open to accommodate the tunneling drill bit 86 and perform tunneling operations. The drive motor 85 is fixedly mounted on the surface of the cylinder 84 away from the ground, with its output end extending through and into the inner side of the cylinder 84. It drives the tunneling drill bit 86 to rotate and tunnel. The tunneling drill bit 86 is fixedly mounted on the output end of the drive motor 85, with one end extending to the outer side of the cylinder 84, directly participating in the tunneling operation. During tunneling, the drive motor 85 starts and drives the tunneling drill bit 86 to rotate. As the drill bit 86 rotates, it cuts into the soil to tunnel. As the tunneling depth increases, the excavated soil is carried into the cylinder by the tunneling drill bit 86. Inside the cylinder 84, one end of the conveying pipe 87 is fixedly installed on the outside of the cylinder 84 and is connected to the cylinder 84. It is used to transport the excavated soil outward through the conveying pipe 87. The other end of the conveying pipe 87 can be connected to an external collection device or discharge port to realize centralized collection and treatment of soil. Since the multi-angle tunneling component 8 adopts the universal adjustment seat 82 for angle adjustment, the tunneling angle of the tunneling drill bit 86 can be flexibly adjusted according to the actual needs in the tunneling process to adapt to the requirements of different geological conditions and tunneling depths. This design not only improves the flexibility and efficiency of tunneling operations, but also reduces energy consumption and costs in the tunneling process.

[0100] In a preferred embodiment, the present invention may be further configured as follows: Figure 5 , Figure 7 As shown; the universal adjustment seat 82 includes:

[0101] The first ball head seat 821 is fixedly installed on the end of the cross mounting bracket 81 away from the straight rod 71, and there are no fewer than four of them, which are symmetrically distributed around the center of the cross mounting bracket 81.

[0102] The first universal ball joint 822 is located inside the first ball joint seat 821, and its number and distribution position are adapted to the first ball joint seat 821;

[0103] Hydraulic push rod 823 is fixedly installed on the outside of the first universal ball joint 822, and its output end is fixedly installed with the second universal ball joint 824.

[0104] The second ball head seat 825 is fixedly installed on the side surface of the mounting base 83 near the cross mounting bracket 81, and the second universal ball head 824 is located inside the second ball head seat 825. The universal adjustment seat 82, as the core component of the multi-angle tunneling assembly 8, primarily functions to enable the angular deflection of the mounting base 83 and the tunneling drill bit 86 during the tunneling process, adapting to different geological conditions and tunneling requirements. The universal adjustment seat 82 is composed of key components such as the first ball head seat 821, the first universal ball head 822, the hydraulic push rod 823, the second universal ball head 824, and the second ball head seat 825. The first ball joint 821 is fixedly installed on the end of the cross mounting bracket 81 away from the straight rod 71. There are at least four of them, symmetrically distributed around the center of the cross mounting bracket 81. This design not only ensures the stability of the universal adjustment seat 82 but also provides it with rotational support in multiple directions. The first universal ball joint 822 is located inside the first ball joint 821, and its number and distribution are adapted to the first ball joint 821, allowing it to rotate freely within the first ball joint 821 to achieve initial angle adjustment. The hydraulic push rod 823 is fixedly installed on the outside of the first universal ball joint 822. On the side, a second universal ball joint 824 is fixedly installed at its output end. The hydraulic push rod 823, through its telescopic movement, can push the second universal ball joint 824 to move outside the first universal ball joint 822. Simultaneously, due to the powerful thrust and precise telescopic control of the hydraulic push rod 823, the accuracy and stability of angle adjustment during tunneling can be ensured. The second ball joint seat 825 is fixedly installed on the surface of the mounting base 83 near the cross mounting bracket 81, and the second universal ball joint 824 is located inside the second ball joint seat 825. Thus, when the hydraulic push rod 823 pushes the second universal ball joint... When 824 moves, the second universal ball head 824 will rotate freely within the second ball head seat 825, thereby driving the mounting base 83 and the tunneling drill bit 86 to deflect at an angle. During the tunneling process, according to geological conditions and tunneling requirements, the rotation between the first ball head seat 821 and the first universal ball head 822, the second universal ball head 824 and the second ball head seat 825, as well as the extension and retraction of the hydraulic push rod 823, can be achieved by controlling the extension and retraction of the hydraulic push rod 823. This combination of rotation and extension and retraction allows the mounting base 83 to deflect at multiple angles, thereby achieving the angle deflection of the tunneling drill bit 86.

[0105] The specific working principle of the tunneling device for caisson construction of the present invention is as follows:

[0106] The operator starts the electric suspension boom 1 and adjusts the height of the entire device through the hydraulic outriggers 2 on it to ensure that the tunneling device can be stably suspended at the required height. The base 9 of the hydraulic outrigger 2 is in contact with the ground through the support arm 10 and the locking caster wheel 12, providing additional stability and support. At the same time, the diagonal brace 32 and the stabilizing seat 33 of the diagonal brace 3 further enhance the stability of the hydraulic outrigger 2, while the reinforcing rod 34 is inserted into the soil to provide additional fixation.

[0107] After the device stabilizes, the operator activates the tilt alarm component 4. The suspension rope 42 and reflector 43 inside the protective cover 41 are in the normal position. When the electric suspension arm 1 tilts, the reflector 43 will trigger the diffuse reflection infrared photoelectric switch 44, thereby activating the alarm 45 to sound an alarm and remind the operator to adjust the hydraulic outrigger 2 in time to maintain the balance of the device.

[0108] Next, the operator controls the tunneling drive assembly 6 to perform tunneling operations. The drive motor 61 starts, driving the screw 62 to rotate axially, which in turn drives the U-shaped sleeve 64 to move vertically under the guidance of the guide rod 63. The U-shaped sleeve 64 is connected to the straight rod 71 through the connecting groove 13 and the fixing bolt 14. The straight rod 71 slides vertically in the guide sleeve 15 to form a pushing and moving component. Multiple straight rods 71 ​​are connected to the threaded connecting groove 73 through the threaded part 72, which can be combined to form a long push rod to enhance the pushing force.

[0109] During the tunneling process, the tunneling drill bit 86 of the multi-angle tunneling assembly 8 is driven by the drive motor 85 to rotate and tunnel. The tunneling drill bit 86 is connected to the straight rod 71 through the cross mounting bracket 81 and the universal adjustment seat 82. The rotation between the first ball head seat 821 and the first universal ball head 822, the second universal ball head 824 and the second ball head seat 825 of the universal adjustment seat 82, as well as the extension and retraction of the hydraulic push rod 823, enables the tunneling drill bit 86 to achieve multi-angle deflection to adapt to different geological conditions and tunneling requirements.

[0110] Finally, the soil excavated during the tunneling process is transported outward through the delivery pipe 87, achieving continuity and efficiency in the tunneling operation. Operators can adjust the angle and speed of the tunneling drill bit 86 at any time according to the tunneling progress and geological conditions to ensure the smooth progress of the tunneling operation.

[0111] In summary, the process of using a tunneling device for caisson construction includes steps such as adjusting the device height, activating the tilt alarm, controlling the tunneling drive components to make vertical displacement, using multi-angle tunneling components to carry out tunneling operations, and transferring soil through a delivery pipe.

[0112] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0113] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tunneling device for caisson construction, characterized in that, include: The electric suspension arm (1) has a hydraulic outrigger (2) on its surface near the ground. The hydraulic outrigger (2) is used to support the electric suspension arm (1) and adjust the height of the electric suspension arm (1). The diagonal brace (3) is located on the outside of the hydraulic outrigger (2) and is used to provide auxiliary support for the hydraulic outrigger (2); A tilt alarm component (4) is located on the outside of the electric suspension arm (1) and is used to trigger an alarm when the electric suspension arm (1) tilts. The slanted frame (5) is set on the moving end of the electric suspension arm (1), and it can move laterally and longitudinally under the drive of the electric suspension arm (1); The tunneling drive assembly (6) is set on the gantry frame (5), and its drive end is provided with a push-down component made up of several push rod assemblies (7). The push-down component is also provided with a multi-angle tunneling assembly (8) to tunnel the caisson at different positions and depths. The push rod assembly (7) includes a number of straight rods (71) that are equally divided into two groups. The multi-angle tunneling component (8) includes: A cross mounting bracket (81) is fixedly installed on the end of the lowest straight rod (71), wherein a universal adjustment seat (82) is provided at the end of the cross mounting bracket (81) away from the straight rod (71). Mounting base (83) is provided on universal adjustment base (82), wherein mounting base (83) is connected to cross mounting bracket (81) through universal adjustment base (82); The cylinder (84) is installed through the center of the mounting base (83), with one end near the ground being open; The drive motor (85) is fixedly installed on the side surface of the cylinder (84) away from the ground, and its output end extends through and into the inside of the cylinder (84). The drilling bit (86) is fixedly mounted on the output end of the drive motor (85) and extends at one end to the outside of the barrel (84); and The conveying pipe (87) has one end fixedly installed on the outside of the cylinder (84) and is connected to the cylinder (84); The universal adjustment seat (82) includes: The first ball head seat (821) is fixedly installed on the end of the cross mounting bracket (81) away from the straight rod (71), and there are no fewer than four of them, which are symmetrically distributed around the center of the cross mounting bracket (81); The first universal ball joint (822) is located inside the first ball joint seat (821), and its number and distribution position are adapted to the first ball joint seat (821); A hydraulic push rod (823) is fixedly installed on the outside of the first universal ball joint (822), and its output end is fixedly installed with a second universal ball joint (824) and The second ball joint (825) is fixedly installed on the side surface of the mounting base (83) near the cross mounting bracket (81), and the second universal ball joint (824) is located inside the second ball joint (825).

2. The tunneling device for caisson construction according to claim 1, characterized in that, A base (9) is fixedly installed at the end of the hydraulic outrigger (2) away from the electric suspension arm (1). At least three support arms (10) are fixedly installed on the outside of the base (9). A reinforcing rib (11) is fixedly installed between the support arm (10) and the hydraulic outrigger (2). A locking caster wheel (12) is fixedly installed on the surface of the support arm (10) near the ground.

3. The tunneling device for caisson construction according to claim 1, characterized in that, The diagonal brace (3) includes: The first connecting clamp (31) is sleeved on the outside of the hydraulic outrigger (2) and connected to the outside of the hydraulic outrigger (2); The diagonal brace (32) has one end hinged to the outside of the first connecting clamp (31), and the other end hinged to a stable seat (33) connected to the ground. The reinforcing rod (34) is inserted through the stabilizing base (33) and one end extends into the soil; and The transverse connecting part (35) is connected to the diagonal brace (32) at one end and to the hydraulic outrigger (2) at the other end.

4. The tunneling device for caisson construction according to claim 3, characterized in that, The transverse connecting portion (35) includes: The first hinge seat (351) is fixedly installed on the surface of the diagonal brace (32); A reinforcing rod (352), one end of which is hinged to the inside of the first hinge seat (351); and The second connecting clamp (353) is hinged to the other end of the reinforcing rod (352) and connected to the hydraulic outrigger (2).

5. The tunneling device for caisson construction according to claim 1, characterized in that, The tilt alarm component (4) includes: The protective cover (41) is fixedly installed on the outside of the electric suspension arm (1), and its whole body is made of transparent acrylic sheet; The suspension rope (42) is fixedly installed at one end on the inside of the protective cover (41), and a reflector (43) is fixedly installed at the other end, wherein the surface of the reflector (43) is set to be shiny; A diffuse reflection infrared photoelectric switch (44) is fixedly installed inside the protective cover (41); and An alarm (45) is fixedly installed on the outside of a protective cover (41) and electrically connected to a diffuse-reflective infrared photoelectric switch (44).

6. The tunneling device for caisson construction according to claim 1, characterized in that, The tunneling propulsion drive assembly (6) includes: The drive motor (61) is fixedly installed on the side surface of the frame (5) away from the electric suspension arm (1); The screw (62) is fixedly installed on the output end of the drive motor (61), and it can rotate axially under the drive of the drive motor (61); Guide rod (63) is fixedly installed on the side surface of the frame (5) away from the electric suspension arm (1) and is arranged parallel to the screw rod (62); and The U-shaped sleeve (64) is threaded to the outside of the screw (62) and slidably connected to the guide rod (63).

7. A tunneling device for caisson construction according to claim 6, characterized in that, The straight rod (71) is disposed on both sides of the U-shaped sleeve (64) and is connected to the U-shaped sleeve (64); The push rod assembly (7) also includes: The threaded portion (72) is fixedly installed on one end of the straight rod (71); and A threaded connection groove (73) is provided on the other end of the straight rod (71) and is adapted to the threaded part (72). Several straight rods (71) can be connected to the threaded part (72) and the threaded connection groove (73) to form a long push rod. The two sets of long push rods together form a push-down component.

8. A tunneling device for caisson construction according to claim 7, characterized in that, A connecting groove (13) is provided on the outer wall of the straight rod (71), and a fixing bolt (14) that is connected to the connecting groove (13) is provided through the surface of the U-shaped sleeve (64). The straight rod (71) and the U-shaped sleeve (64) are connected to each other through the connecting groove (13) and the fixing bolt (14). A guide sleeve (15) is also fixedly installed on the side wall of the U-shaped frame (5). The straight rod (71) is located inside the guide sleeve (15) and can slide vertically within the guide sleeve (15).

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