Tunneling device for open caisson construction

Abstract

The invention relates to the technical field of open caisson construction, and discloses a tunneling device for open caisson construction, which is characterized by comprising an electric suspension arm, hydraulic support legs are arranged on the surface of one side, close to the ground, of the electric suspension arm, and the hydraulic support legs are used for supporting the electric suspension arm and adjusting the height position of the electric suspension arm; the inclined supporting part is arranged on the outer side of the hydraulic supporting leg and is used for carrying out auxiliary supporting on the hydraulic supporting leg; the inclination alarm assembly is arranged on the outer side of the electric suspension arm and used for giving an alarm when the electric suspension arm inclines; the n-shaped frame is arranged at the moving end of the electric suspension arm and can be driven by the electric suspension arm to move transversely and longitudinally; and the tunneling pushing and driving assembly is arranged on the n-shaped frame, and the driving end of the tunneling pushing and driving assembly is provided with a pushing downward moving piece formed by splicing a plurality of push rod assemblies. The tunneling device for open caisson construction aims at solving the problems that in the open caisson construction process, inclination and deviation are prone to occurring when a concrete structure sinks.

Description

Technical Field

[0001] The invention relates to the technical field of caisson construction, in particular to a tunneling device for caisson construction. Background Art

[0002] During the caisson construction process, the purpose of using a tunneling device is to dig soil, sink, and extend the well wall under the joint cover of the pre-made caisson blade and a section of the well wall, until the unstable aquifer is passed through to reach the bedrock. The use of a tunneling device can effectively improve construction efficiency while ensuring the stability and safety of the caisson sinking process. Caissons are set up in certain narrow areas mainly to take advantage of the advantages of caisson construction technology, such as deeper construction, less impact on the surrounding environment, and construction in areas with complex geological and hydrological conditions. These advantages enable caisson construction to be carried out efficiently and safely in narrow areas. In addition, caisson construction can also reduce the amount of excavation, transportation and backfilling, reduce project costs, and shorten construction period.

[0003] In the prior art, caisson construction mostly relies on gravity to achieve the sinking effect. However, this construction method has a significant defect, that is, it cannot ensure uniform force on the concrete structure. Since the caisson needs to pass through different geological layers during the excavation process, the bearing capacity and stability of each layer of soil are different, which causes the concrete structure to easily tilt when sinking. When the caisson sinks to the soil layer with lower bearing capacity, this part of the soil may not be able to provide sufficient support, causing the caisson to tilt at this position. The tilted caisson will not only affect the smooth progress of the excavation work, but may also cause the excavation direction to shift, thereby causing inconvenience to the construction process. In addition, the tilted caisson may also pose a threat to the stability and safety of the concrete structure. In the tilted state, the concrete structure may bear uneven loads, resulting in stress concentration and cracks inside the structure. These problems will not only reduce the bearing capacity of the caisson, but may also cause safety hazards to subsequent construction and use. Summary of the invention

[0004] The purpose of the present invention is to solve the problem of inclination and deviation that is easy to occur when a concrete structure sinks during caisson construction, and to propose a tunneling device for caisson construction.

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

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

[0007] The electric suspension arm has a hydraulic support leg disposed on a surface of one side close to the ground, wherein the hydraulic support leg is used to support the electric suspension arm and adjust the height position of the electric suspension arm;

[0008] The diagonal support part is arranged on the outer side of the hydraulic support leg and is used for auxiliary support of the hydraulic support leg;

[0009] A tilt alarm component is arranged on the outside of the electric suspension arm and is used to alarm when the electric suspension arm tilts;

[0010] The shaped frame is arranged on the moving end of the electric suspension arm, and can be displaced horizontally and vertically under the drive of the electric suspension arm;

[0011] The excavation push driving assembly is arranged on the profile frame, and its driving end is provided with a pushing downward moving member formed by splicing a plurality of push rod assemblies. The pushing downward moving member is also provided with a multi-angle excavation assembly to excavate caissons at different positions and depths.

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

[0013] Furthermore, a base is fixedly installed at one end of the hydraulic support leg away from the electric suspension arm, and no less than 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 support legs, and a locking universal wheel is fixedly installed on the surface of the support arm close to the ground.

[0014] Furthermore, the diagonal support portion includes:

[0015] A first connecting hoop is sleeved on the outer side of the hydraulic support leg and is connected to the outer side of the hydraulic support leg;

[0016] An oblique support rod, one end of which is hinged to the outer side of the first connecting hoop, and the other end of which is hinged to a stable seat connected to the ground;

[0017] A reinforcing rod is disposed through the stabilizing seat and one end of the reinforcing rod extends into the soil; and

[0018] The transverse connecting part has one end connected to the diagonal support rod and the other end connected to the hydraulic support leg.

[0019] Furthermore, the transverse connecting portion includes:

[0020] A first hinged seat is fixedly mounted on the surface of the diagonal support rod;

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

[0022] The second connecting hoop is hinged to the other end of the reinforcing rod and is connected to the hydraulic support leg.

[0023] Furthermore, the tilt alarm assembly includes:

[0024] The protective cover is fixedly installed on the outside of the electric suspension arm, and the whole is made of a transparent acrylic plate;

[0025] A suspension rope, one end of which is fixedly mounted on the inner side of the protective cover, and the other end of which is fixedly mounted with a reflector, wherein the surface of the reflector is bright;

[0026] A diffuse reflection infrared photoelectric switch, fixedly mounted on the inner side of the protective cover; and

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

[0028] Furthermore, the excavation push driving assembly includes:

[0029] The driving motor is fixedly mounted on a surface of a side of the profile frame away from the electric suspension arm;

[0030] The screw is fixedly mounted on the output end of the driving motor and can rotate axially under the drive of the driving motor;

[0031] A guide rod is fixedly mounted on a side surface of the profile frame away from the electric suspension arm and is arranged parallel to the screw rod; and

[0032] The U-shaped sleeve is threadedly connected to the outer side of the screw rod and is slidably connected to the guide rod.

[0033] Furthermore, the push rod assembly includes:

[0034] Straight rods are arranged on both sides of the U-shaped sleeve and are connected to the U-shaped sleeve, wherein the number of the straight rods is set to be several and is equally divided into two groups;

[0035] A threaded portion fixedly mounted on one end of the straight rod; and

[0036] The threaded connection groove is opened on the other side end of the straight rod and is adapted to the threaded portion. Several straight rods can be connected to form a long push rod through the threaded portion and the threaded connection groove. Two groups of long push rods together form a downward pusher.

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

[0038] Furthermore, the multi-angle excavation assembly includes:

[0039] A cross mounting frame is fixedly mounted on the end of the lowest straight rod, wherein a universal adjustment seat is provided at one end of the cross mounting frame away from the straight rod;

[0040] A mounting seat is arranged on the universal adjustment seat, wherein the mounting seat is connected to the cross mounting frame through the universal adjustment seat;

[0041] The cylinder is arranged through the center of the mounting seat, and one end of the cylinder close to the ground is opened;

[0042] The driving motor is fixedly mounted on a surface of the cylinder away from the ground, and its output end penetrates and extends to the inner side of the cylinder;

[0043] A boring bit, which is fixedly mounted on the output end of the driving motor and has one end extending to the outside of the barrel; and

[0044] The delivery pipe has one end fixedly mounted on the outside of the cylinder and communicated with the cylinder.

[0045] Furthermore, the universal adjustment seat includes:

[0046] The first ball head seat is fixedly mounted on the end of the cross mounting frame away from the straight rod, and the number of the first ball head seat is not less than four and is symmetrically distributed according to the center of the cross mounting frame;

[0047] The first universal ball head is arranged on the inner side of the first ball head seat, and the number and distribution position of the first universal ball head seat are adapted to the first ball head seat;

[0048] The hydraulic push rod is fixedly installed on the outside of the first universal ball head, and the output end thereof is fixedly installed with the second universal ball head and

[0049] The second ball head seat is fixedly mounted on a side surface of the mounting seat close to the cross mounting frame, and the second universal ball head is arranged on the inner side of the second ball head seat.

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

[0051] The present invention realizes flexible adjustment of the height and posture of the excavation device through the design of the electric suspension arm and the hydraulic support leg. The hydraulic support leg can not only stably support the electric suspension arm, but also adapt to different construction environments and geological conditions by adjusting the height position. This design enables the excavation device to maintain a stable posture during the excavation process, and effectively avoids the problem of caisson tilting caused by differences in soil bearing capacity. Secondly, the arrangement of the inclined support part further enhances the stability of the excavation device. The inclined support part serves as an auxiliary support for the hydraulic support leg and can provide additional supporting force during the excavation process, ensuring the stable operation of the excavation device under complex geological conditions. This design not only improves the excavation efficiency, but also reduces the safety risks during the construction process. Furthermore, the addition of the tilt alarm component provides real-time safety monitoring for the excavation process. When the boom tilts, the tilt alarm component will immediately sound an alarm to remind the operator to adjust the posture of the excavation device in time. This design helps to promptly discover and correct the tilt problem of the caisson, avoiding the deviation of the excavation direction and subsequent construction hazards caused by the tilt. In addition, the design of the cam frame and the excavation push drive component enables the excavation device to flexibly respond to the excavation needs of caissons at different positions and depths. The cam frame can achieve lateral and longitudinal displacement under the drive of the electric suspension arm, while the excavation push drive component achieves precise excavation of different positions and depths through the combination of the push rod assembly and the multi-angle excavation assembly. This design not only improves the excavation efficiency, but also ensures the accuracy and safety of the excavation process. It effectively overcomes the tilt and deviation problems mentioned in the background technology during the caisson construction process, and improves the construction efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0054] Figure 3 It is a schematic diagram of the connection structure between the hydraulic support leg and the diagonal support part of the present invention;

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

[0056] Figure 5 It is a schematic diagram of the connection structure between the trolley and the tunneling driving assembly of the present invention;

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

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

[0059] In the figure: 1. Electric suspension arm; 2. Hydraulic support leg; 3. Diagonal support part; 31. First connecting hoop; 32. Diagonal support rod; 33. Stable seat; 34. Reinforcement rod; 35. Transverse connection part; 351. First hinged seat; 352. Reinforcement rod; 353. Second connecting hoop; 4. Tilt alarm assembly; 41. Protective cover; 42. Suspension rope; 43. Reflector; 44. Diffuse reflection type infrared photoelectric switch; 45. Alarm; 5. U-shaped frame; 6. Excavation push drive assembly; 61. Drive motor; 62. Screw rod; 63. Guide rod; 64. U-shaped sleeve; 7. Push rod assembly; 71, straight rod; 72, threaded portion; 73, threaded connection groove; 8, multi-angle excavation 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, excavation drill bit; 87, delivery pipe; 9, base; 10, support arm; 11, reinforcement rib; 12, locking universal wheel; 13, connection groove; 14, fixing bolt; 15, guide sleeve. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0061] Combination Figure 1-Figure 7 As shown, a tunneling device for caisson construction of the present invention comprises:

[0062] The electric suspension arm 1 has a hydraulic support leg 2 on its side surface close to the ground, wherein the hydraulic support leg 2 is used to support the electric suspension arm 1 and adjust the height position of the electric suspension arm 1, wherein the hydraulic support leg 2 and the electric suspension arm 1 are connected to each other through an articulated seat, so that there is no movement obstruction in the process of adjusting the support;

[0063] The diagonal support part 3 is arranged on the outer side of the hydraulic support leg 2 and is used for auxiliary support of the hydraulic support leg 2;

[0064] A tilt alarm component 4 is arranged on the outer side of the electric suspension arm 1 and is used to alarm when the electric suspension arm 1 tilts;

[0065] The profile frame 5 is arranged on the moving end of the electric suspension arm 1, and can be displaced laterally and longitudinally under the driving of the electric suspension arm 1;

[0066] The excavation push driving assembly 6 is arranged on the profile frame 5, and its driving end is provided with a pushing downward member composed of several push rod assemblies 7. The pushing downward member is also provided with a multi-angle excavation assembly 8 to excavate caissons at different positions and depths.

[0067] The tunneling device is centered on an electric suspension arm 1, which achieves stable support and height adjustment through hydraulic legs 2. A hydraulic leg 2 is provided on the surface of the electric suspension arm 1 on one side close to the ground, and the hydraulic leg 2 and the electric suspension arm 1 are connected to each other through an articulated seat. This design ensures that the hydraulic leg 2 can rotate flexibly without causing movement obstruction with the electric suspension arm 1 when adjusting the support height, thereby achieving precise adjustment of the height position and posture of the electric suspension arm 1. In order to further enhance the stability of the tunneling device, an inclined support part 3 is provided on the outside of the hydraulic leg 2 as an auxiliary support for the hydraulic leg 2. The inclined support part 3 can provide additional support force for the hydraulic leg 2 during the tunneling process through its unique structural design, thereby ensuring the stable operation of the tunneling device under complex geological conditions. The tilt alarm component 4 is provided on the outside of the electric suspension arm 1 for real-time monitoring of the tilt state of the electric suspension arm 1. Once the electric suspension arm 1 tilts, the tilt alarm component 4 will immediately sound an alarm to remind the operator to adjust the posture of the tunneling device in time. In order to avoid the deviation of the excavation direction and the subsequent construction hazards caused by the inclination of the caisson, the profile frame 5 is arranged on the moving end of the electric suspension arm 1 as an important part of the excavation device. Driven by the electric suspension arm 1, the profile frame 5 can achieve lateral and longitudinal displacement to adapt to the excavation needs of caissons at different positions and depths. The excavation push driving assembly 6 is arranged on the profile frame 5, and its driving end is spliced ​​by a plurality of push rod assemblies 7 to form a push down moving member, and a multi-angle excavation assembly 8 is also arranged on the push down moving member, so that the excavation The device can carry out precise excavation according to caissons of different positions and depths. During the excavation process, the excavation push drive assembly 6 drives the extension and retraction of the push rod assembly 7 to drive the multi-angle excavation assembly 8 to carry out excavation operations, thereby realizing effective excavation of the caisson. In summary, the excavation device for caisson construction realizes efficient and stable excavation operations for caissons of different positions and depths through the coordinated work of components such as the electric suspension arm 1, the hydraulic support legs 2, the diagonal support part 3, the tilt alarm assembly 4, the profile frame 5 and the excavation push drive assembly 6.

[0068] In a preferred embodiment, the present invention can be further configured as follows: Figure 1 , Figure 2As shown; a base 9 is fixedly installed at one end of the hydraulic leg 2 away from the electric suspension arm 1, and no less than three support arms 10 are fixedly installed on the outer side of the base 9, and reinforcing ribs 11 are fixedly installed between the support arm 10 and the hydraulic leg 2, and a locking universal wheel 12 is fixedly installed on the surface of the support arm 10 on the side close to the ground. On the basis of the original excavation device, the structure of the hydraulic leg 2 is further optimized. Specifically, a base 9 is fixedly installed at one end of the hydraulic leg 2 away from the electric suspension arm 1. This design not only enhances the stability of the hydraulic leg 2, but also provides a wider support foundation for it. No less than three support arms 10 are fixedly installed on the outer side of the base 9. These support arms 10 are radially distributed with the base 9 as the center, forming a stable triangular support structure. This design not only The stability of the tunneling device under complex geological conditions is improved, and it can also better adapt to different terrains and construction environments. In addition, in order to further enhance the connection strength between the support arm 10 and the hydraulic support leg 2, reinforcing ribs 11 are fixedly installed between the two. The presence of the 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, a locking universal wheel 12 is fixedly installed on the surface of the side of the support arm 10 close to the ground. The locking universal wheel 12 not only has the flexibility and mobility of an ordinary universal wheel, but can also be fixed by a locking mechanism, thereby providing stable support when needed. This design enables the tunneling device to maintain a stable posture during the tunneling process, and also facilitates flexible movement and adjustment at the construction site.

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

[0070] The first connecting hoop 31 is sleeved on the outer side of the hydraulic support leg 2 and connected to the outer side of the hydraulic support leg 2;

[0071] A diagonal brace 32, one end of which is hinged to the outer side of the first connecting hoop 31, and the other end of which is hinged to a stabilizing seat 33 connected to the ground;

[0072] A reinforcing rod 34 is provided through the stabilizing base 33 and one end of which extends into the soil; and

[0073] One end of the transverse connecting part 35 is interconnected with the diagonal support rod 32, and the other end is interconnected with the hydraulic support leg 2. The first connecting hoop 31 is sleeved on the outside of the hydraulic support leg 2 and interconnected with the outside of the hydraulic support leg 2. This design allows the diagonal support part 3 to fit tightly on the hydraulic support leg 2, thereby forming a stable support point. Then, one end of the diagonal support rod 32 is hinged to the outside of the first connecting hoop 31, and the other end is hinged to a stable seat 33 connected to the ground. This hinged design allows the diagonal support rod 32 to adjust its inclination angle according to actual needs, thereby achieving effective support for the hydraulic support leg 2 and stabilizing it. The connection between the seat 33 and the ground further enhances the stability of the diagonal bracing portion 3. In addition, a reinforcing rod 34 is arranged throughout the stabilizing seat 33, and one end of the reinforcing rod 34 extends into the soil. The existence of the reinforcing rod 34 not only improves the connection strength between the stabilizing seat 33 and the ground, but also further enhances the overall stability of the diagonal bracing portion 3 by penetrating into the soil. Finally, one end of the transverse connecting portion 35 is interconnected with the diagonal bracing rod 32, and the other end is interconnected with the hydraulic support leg 2. This design not only increases the number of connection points between the diagonal bracing portion 3 and the hydraulic support leg 2, but also further improves the stability and rigidity of the entire supporting structure through the transverse connection.

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

[0075] The first hinge seat 351 is fixedly mounted on the surface of the diagonal support rod 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 hoop 353 is hinged on the other side end of the reinforcing rod 352 and is connected to the hydraulic support leg 2. The first hinge seat 351 is fixedly installed on the surface of the diagonal support rod 32 as the connection point between the reinforcing rod 352 and the diagonal support rod 32. This hinge design allows the reinforcing rod 352 to flexibly rotate within a certain range to meet the support requirements of 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 hoop 353. The existence of the reinforcing rod 352 Not only does it increase the connection path between the diagonal support rod 32 and the hydraulic support leg 2, but also improves the stability of the entire supporting structure through its rigidity and strength. Finally, the second connecting hoop 353 is hinged to the other end of the reinforcing rod 352 and interconnected with the hydraulic support leg 2. This design enables the transverse connecting part 35 to fit tightly on the hydraulic support leg 2, thereby forming an additional support point. At the same time, the hinged design of the second connecting hoop 353 also allows it to rotate within a certain range to accommodate the slight movement of the hydraulic support leg 2 during excavation.

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

[0079] The protective cover 41 is fixedly mounted on the outer side of the electric suspension arm 1 and is made entirely of a transparent acrylic plate;

[0080] A suspension rope 42, one end of which is fixedly mounted on the inner side of the protective cover 41, and the other end of which is fixedly mounted with a reflector 43, wherein the surface of the reflector 43 is bright;

[0081] A diffuse reflection infrared photoelectric switch 44 is fixedly mounted on the inner side of the protective cover 41; and

[0082] The alarm 45 is fixedly mounted on the outside of the protective cover 41 and is electrically connected to the diffuse reflection type infrared photoelectric switch 44. The protective cover 41 is fixedly mounted on the outside of the electric suspension arm 1 and is made of a transparent acrylic plate as a whole. This material not only has good transparency, but also can effectively protect the internal electronic components from interference and damage from the external environment. Then, one end of the suspension rope 42 is fixedly mounted on the inside of the protective cover 41, and the other end is fixedly mounted with a reflector 43. The surface of the reflector 43 is bright and can reflect infrared signals, thereby cooperating with the diffuse reflection type infrared photoelectric switch 44. The diffuse reflection type infrared photoelectric switch 44 is also fixedly mounted on the inside of the protective cover 41. Its working principle is to transmit infrared signals and receive reflected signals. Under normal circumstances, that is, when the electric suspension arm 1 is parallel to the ground, the reflector 43 will not stay at the transmitting and receiving end of the diffuse reflection type infrared photoelectric switch 44 due to the suspension effect of the suspension rope 42, so the diffuse reflection type infrared photoelectric switch 44 cannot receive the reflected signal. , 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 accordingly, so that the reflector 43 is at the transmitting and receiving end of the diffuse reflection type infrared photoelectric switch 44. At this time, the infrared signal emitted by the diffuse reflection type 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 reflection type infrared photoelectric switch 44. Once the diffuse reflection type 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 staff to pay attention to the tilt of the electric suspension arm 1 and take corresponding measures to adjust the corresponding hydraulic support leg 2 to prevent danger. In addition, a battery is also provided on the inner side of the protective cover 41, and the diffuse reflection type infrared photoelectric switch 44 and the alarm 45 are powered by the battery to ensure that they can work normally under any circumstances.

[0083] In a preferred embodiment, the present invention can be further configured as follows: Figure 1 , Figure 5 As shown; the excavation push driving assembly 6 includes:

[0084] The driving motor 61 is fixedly mounted on a side surface of the profile frame 5 away from the electric suspension arm 1;

[0085] The screw 62 is fixedly mounted on the output end of the driving motor 61 and can rotate axially under the driving of the driving motor 61;

[0086] The guide rod 63 is fixedly mounted on a side surface of the profile 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 threadedly connected to the outer side of the screw rod 62 and is slidably connected to the guide rod 63. The drive motor 61 is fixedly installed on the side surface of the U-shaped frame 5 away from the electric suspension arm 1. As the power source of the excavation push drive component 6, the drive motor 61 converts electrical energy into mechanical energy through its internal electromagnetic induction principle, thereby outputting a rotational torque. Then, the screw rod 62 is fixedly installed on the output end of the drive motor 61 and is directly connected to the output shaft of the drive motor 61. When the drive motor 61 is started, its output shaft will drive the screw rod 62 to rotate axially. The outer side of the screw rod 62 is processed with spiral 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. It is installed on the side surface of the U-shaped frame 5 away from the electric suspension arm 1, and is arranged parallel to the screw 62. The main function of the guide rod 63 is to provide guidance and support for the U-shaped sleeve 64 during the vertical displacement process, ensuring that it can move up and down smoothly. The U-shaped sleeve 64 is one of the key components of the excavation push drive assembly 6. A threaded hole compatible with the screw 62 and a through hole compatible with the guide rod 63 are processed on its surface. When the driving motor 61 drives the screw 62 to rotate, due to the meshing action of the thread, the U-shaped sleeve 64 will be driven by the screw 62 for vertical displacement. At the same time, the U-shaped sleeve 64 is slidably connected to the guide rod 63 through the through hole on its surface, ensuring that it can remain stable and stable during the vertical displacement process.

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

[0089] Straight rods 71 ​​are disposed on both sides of the U-shaped sleeve 64 and are interconnected with the U-shaped sleeve 64, wherein the number of straight rods 71 ​​is set to be several and is equally divided into two groups;

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

[0091] The threaded connection groove 73 is opened on the other side end of the straight rod 71 and is adapted to the threaded portion 72. Several straight rods 71 ​​can be threadedly connected with the threaded portion 72 and the threaded connection groove 73 to form a long push rod. The two groups of long push rods together form a downward push member. The push rod assembly 7 is a key component for realizing excavation propulsion in the excavation device. Its main function is to combine several straight rods 71 ​​into a long push rod and use the telescopicity of the long push rod to push the excavation device downward. Specifically, the push rod assembly 7 is composed of key components such as the straight rod 71, the threaded portion 72 and the threaded connection groove 73. In order to achieve its pushing function, the straight rod 71 is arranged on both sides of the U-shaped sleeve 64 and is interconnected with the U-shaped sleeve 64. There are several straight rods 71, which are equally divided into two groups, respectively located on both sides of the U-shaped sleeve 64. This design enables the push rod assembly 7 to be evenly distributed on both sides of the excavation device, thereby achieving a stable pushing effect. Then, the threaded portion 72 is fixedly installed on one side end of the straight rod 71, and the outer side of the threaded portion 72 is processed with a spiral thread, which is adapted to the threaded connection groove 73 to achieve the threaded connection between the straight rods 71. When the push rod assembly 7 is in operation, a plurality of straight rods 71 ​​can be connected to the threaded portion 72 and the threaded groove 73 to form a long push rod. Due to the tightness of the threaded connection, the long push rod can be kept in the extension 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 telescopic range of the long push rods can be flexibly adjusted to adapt to different excavation depths and progress requirements. Finally, the two groups of long push rods together form a downward pushing member, which is used to push the excavation device downward. During the excavation process, as the excavation depth increases, the downward pushing member will gradually extend and contact the excavation surface through the pushing surface at its end, thereby generating a downward thrust. This thrust can overcome the resistance during the excavation process, so that the excavation device can stably move downward and excavate.

[0092] In a preferred embodiment, the present invention can 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 connected to the connecting groove 13 is provided on the surface of the U-shaped sleeve 64, wherein 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, wherein a guide sleeve 15 is also fixedly installed on the side wall of the U-shaped frame 5, and the straight rod 71 is located on the inner side of the guide sleeve 15 and can slide vertically in the guide sleeve 15. In the design of the push rod assembly 7, in order to more firmly connect the straight rod 71 with the U-shaped sleeve 64 and keep the straight rod 71 during the excavation process The vertical sliding stability is achieved by using a connection method of a connecting groove 13 and a fixing bolt 14. At the same time, in order to guide the vertical sliding of the straight rod 71, a guide sleeve 15 is fixedly installed on the side wall of the U-shaped frame 5. Specifically, a connecting groove 13 is provided on the outer wall of the straight rod 71. These connecting grooves 13 extend along the length direction of the straight rod 71, providing a space for the fixing bolt 14 to pass through. The fixing bolt 14 connected to the connecting groove 13 is provided on the surface of the U-shaped sleeve 64. When the straight rod 71 needs to be connected to the U-shaped sleeve 64, only the straight rod 71 needs to be connected. The connecting groove 13 is aligned with the position of 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 stuck in the connecting groove 13. In this way, the straight rod 71 is firmly connected to the U-shaped sleeve 64 and can maintain a relatively fixed position during the excavation process. At the same time, in order to guide the vertical sliding of the straight rod 71 during the excavation process, 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, so that the straight rod 71 can slide vertically smoothly in the guide sleeve 15. This design is not It not only ensures the stability of the straight rod 71 during the vertical sliding process, but also reduces the friction resistance during the sliding process, thereby improving the excavation efficiency. During the excavation process, as the excavation depth increases, the U-shaped sleeve 64 is driven by the drive motor 61 and the screw 62 to perform vertical displacement. 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 excavation device can smoothly move downward and excavate.

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

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

[0095] The mounting seat 83 is disposed on the universal adjustment seat 82, wherein the mounting seat 83 is connected to the cross mounting frame 81 through the universal adjustment seat 82;

[0096] The cylinder 84 is disposed through the center of the mounting seat 83, and one end of the cylinder 84 close to the ground is open;

[0097] The driving motor 85 is fixedly mounted on a surface of the cylinder 84 away from the ground, and its output end penetrates and extends to the inner side of the cylinder 84;

[0098] A drilling bit 86 is fixedly mounted on the output end of the driving motor 85 and one end of which extends to the outside of the cylinder 84; and

[0099] The conveying pipe 87 has one end fixedly mounted on the outside of the cylinder 84 and is interconnected with the cylinder 84. The multi-angle excavation assembly 8 is a key part of the excavation device for caisson construction. Its main function is to flexibly adjust the excavation angle through the universal adjustment seat 82, and use the driving motor 85 to drive the excavation drill bit 86 to perform excavation operations, and at the same time, the excavated soil is transmitted to the outside through the conveying pipe 87. Specifically, the multi-angle excavation assembly 8 is composed of key components such as a cross mounting frame 81, a universal adjustment seat 82, a mounting seat 83, a cylinder 84, a driving motor 85, an excavation drill bit 86 and a conveying pipe 87. The cross mounting frame 81 is fixedly mounted at the bottom At the end of the straight rod 71, as a supporting and connecting component of the multi-angle excavation assembly 8, a universal adjustment seat 82 is arranged at the end of the cross mounting frame 81 away from the straight rod 71. Through the universal adjustment mechanism inside it, the mounting seat 83 can be flexibly adjusted in multiple directions to meet the needs of different angles during the excavation process. The mounting seat 83 is arranged on the universal adjustment seat 82 and is connected to the cross mounting frame 81 through the universal adjustment seat 82. This connection method not only ensures the stability of the mounting seat 83, but also enables it to change its angle accordingly with the adjustment of the universal adjustment seat 82. The cylinder 84 is arranged through the center of the mounting seat 83, and its support The end near the ground is open to accommodate the boring drill bit 86 and perform boring operations. The driving motor 85 is fixedly mounted on the surface of the side of the barrel 84 away from the ground, and its output end penetrates and extends to the inner side of the barrel 84 to drive the boring drill bit 86 to rotate and dig. The boring drill bit 86 is fixedly mounted on the output end of the driving motor 85, and one end of it extends to the outside of the barrel 84 to directly participate in the boring operation. During the boring process, the driving motor 85 is started and drives the boring drill bit 86 to rotate. The boring drill bit 86 cuts into the soil while rotating to dig. As the excavation depth increases, the excavated soil will be brought into the barrel by the boring drill bit 86. 84, at this time, one end of the delivery pipe 87 is fixedly installed on the outside of the cylinder 84 and is interconnected with the cylinder 84, which is used to transmit the excavated soil to the outside through the delivery pipe 87, and the other end of the delivery pipe 87 can be connected to an external collection device or discharge port to realize centralized collection and treatment of the soil. Since the multi-angle excavation component 8 adopts a universal adjustment seat 82 for angle adjustment, the excavation angle of the excavation drill bit 86 can be flexibly adjusted according to the actual needs during the excavation process to adapt to different geological conditions and excavation depth requirements. This design not only improves the flexibility and efficiency of the excavation operation, but also reduces the energy consumption and cost during the excavation process.

[0100] In a preferred embodiment, the present invention can 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 mounted on the end of the cross mounting frame 81 away from the straight rod 71. The number of the first ball head seat 821 is not less than four and is symmetrically distributed according to the center of the cross mounting frame 81.

[0102] The first universal ball heads 822 are arranged on the inner side of the first ball head seat 821, and the number and distribution positions of the first universal ball heads 822 are adapted to the first ball head seat 821;

[0103] The hydraulic push rod 823 is fixedly mounted on the outside of the first universal ball head 822, and the output end thereof is fixedly mounted with the second universal ball head 824 and

[0104] The second ball head seat 825 is fixedly mounted on the side surface of the mounting seat 83 close to the cross mounting frame 81, and the second universal ball head 824 is arranged on the inner side of the second ball head seat 825. The universal adjustment seat 82 is the core component of the multi-angle excavation assembly 8. Its main function is to realize the angle deflection of the mounting seat 83 and the excavation drill bit 86 during the excavation process to adapt to different geological conditions and excavation requirements. The universal adjustment seat 82 is composed of 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 and other key components. Specifically, the first ball head seat 821 is fixedly mounted on the end of one side of the cross mounting frame 81 away from the straight rod 71. The number of the first ball head seat 821 is not less than four and is symmetrically distributed according to the center of the cross mounting frame 81. This design not only ensures the stability of the universal adjustment seat 82, but also provides rotation support in multiple directions. The first universal ball head 822 is arranged on the inner side of the first ball head seat 821. The number and distribution position of the first universal ball head 822 are adapted to the first ball head seat 821 and can rotate freely in the first ball head seat 821 to achieve preliminary angle adjustment. The hydraulic push rod 823 is fixedly mounted on the outer side of the first universal ball head 822. The output end of the hydraulic push rod 823 is fixedly mounted with a second universal ball head 824. The hydraulic push rod 823 can push the second universal ball head 824 to move outside the first universal ball head 822 through telescopic movement. At the same time, since the hydraulic push rod 823 has a strong thrust and precise telescopic control, the accuracy and stability of the angle adjustment during the excavation process can be ensured. The second ball head seat 825 is fixedly mounted on the side surface of the mounting seat 83 close to the cross mounting frame 81, and the second universal ball head 824 is arranged on the inner side of the second ball head seat 825. In this way, when the hydraulic push rod 823 pushes the second universal ball head When 824 moves, the second universal ball head 824 will rotate freely in the second ball head seat 825, thereby driving the mounting seat 83 and the tunneling drill bit 86 to deflect the angle. During the tunneling process, according to the geological conditions and tunneling requirements, the telescopic movement of the hydraulic push rod 823 can be controlled to realize 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, and the telescopic movement of the hydraulic push rod 823. This combined movement of rotation and telescopic movement enables the mounting seat 83 to be deflected at multiple angles, thereby realizing the angular deflection of the tunneling drill bit 86.

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

[0106] The operator starts the electric suspension arm 1 and adjusts the height position of the entire device through the hydraulic legs 2 thereon to ensure that the excavation device can be stably suspended at the required height. The base 9 of the hydraulic legs 2 is in contact with the ground through the support arm 10 and the locking universal wheel 12, providing additional stability and support force. At the same time, the diagonal support rod 32 and the stabilizing seat 33 of the diagonal support part 3 further enhance the stability of the hydraulic legs 2, and the reinforcement rod 34 penetrates deep into the soil to provide additional fixing effect.

[0107] After the device is stable, the operator turns on the tilt alarm assembly 4, and the suspension rope 42 and the reflector 43 in the protective cover 41 are in normal positions. When the electric suspension arm 1 tilts, the reflector 43 triggers the diffuse reflection infrared photoelectric switch 44, thereby starting the alarm 45 to sound an alarm, reminding the operator to adjust the hydraulic legs 2 in time to keep the device balanced;

[0108] Next, the operator controls the excavation push driving assembly 6 to perform excavation operation, the driving motor 61 is started, and the screw rod 62 is driven to rotate axially, thereby driving the U-shaped sleeve 64 to perform vertical displacement 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 push-down member. A plurality of straight rods 71 ​​can be combined into a long push rod through the threaded connection of the threaded portion 72 and the threaded connecting groove 73 to enhance the driving force.

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

[0110] Finally, the excavated soil during the excavation process is transmitted outward through the conveying pipe 87, which realizes the continuity and efficiency of the excavation operation. The operator can adjust the angle and excavation speed of the excavation drill 86 at any time according to the excavation progress and geological conditions to ensure the smooth progress of the excavation operation.

[0111] In summary, the process of using the excavation device for caisson construction includes the steps of adjusting the height of the device, turning on the tilt alarm, controlling the excavation push to drive the component to perform vertical displacement, using multi-angle excavation components to perform excavation operations, and transporting soil through a conveying pipe.

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

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

Claims

1. A tunneling device for caisson construction, characterized in that: include: An electric suspension arm (1), a hydraulic support leg (2) being arranged on a surface of a side close to the ground, wherein the hydraulic support leg (2) is used to support the electric suspension arm (1) and adjust the height position of the electric suspension arm (1); The diagonal support part (3) is arranged on the outer side of the hydraulic support leg (2) and is used to provide auxiliary support for the hydraulic support leg (2); A tilt alarm component (4) is arranged on the outside of the electric suspension arm (1) and is used to sound an alarm when the electric suspension arm (1) tilts; A shaped frame (5) is arranged on the movable end of the electric suspension arm (1) and can be displaced laterally and longitudinally under the drive of the electric suspension arm (1); The excavation push driving assembly (6) is arranged on the profile frame (5), and a driving end thereof is provided with a push downward moving member formed by splicing a plurality of push rod assemblies (7), and a multi-angle excavation assembly (8) is also provided on the push downward moving member to excavate caissons at different positions and depths.

2. A tunneling device for caisson construction according to claim 1, characterized in that: A base (9) is fixedly mounted on one end of the hydraulic support leg (2) away from the electric suspension arm (1), and no less than three support arms (10) are fixedly mounted on the outer side of the base (9). A reinforcing rib (11) is fixedly mounted between the support arm (10) and the hydraulic support leg (2), and a locking universal wheel (12) is fixedly mounted on the surface of one side of the support arm (10) close to the ground.

3. A tunneling device for caisson construction according to claim 1, characterized in that: The diagonal support portion (3) comprises: A first connecting hoop (31) is sleeved on the outer side of the hydraulic support leg (2) and is connected to the outer side of the hydraulic support leg (2); A diagonal brace (32), one end of which is hinged to the outer side of the first connecting hoop (31), and the other end of which is hinged to a stabilizing seat (33) connected to the ground; A reinforcing rod (34) is disposed through the stabilizing seat (33) and one end of which extends into the soil; and The transverse connecting part (35) has one end connected to the diagonal support rod (32) and the other end connected to the hydraulic support leg (2).

4. A tunneling device for caisson construction according to claim 3, characterized in that: The transverse connecting portion (35) comprises: A first hinge seat (351) is fixedly mounted on the surface of the diagonal support rod (32); A reinforcing rod (352), one end of which is hinged to the inner side of the first hinge seat (351); and The second connecting hoop (353) is hinged to the other end of the reinforcing rod (352) and is connected to the hydraulic support leg (2).

5. The excavation device for caisson construction according to claim 1, characterized in that: The tilt alarm component (4) comprises: A protective cover (41) is fixedly mounted on the outer side of the electric suspension arm (1), and is made entirely of a transparent acrylic plate; A suspension rope (42) has one end fixedly mounted on the inner side of the protective cover (41) and the other end fixedly mounted with a reflector (43), wherein the surface of the reflector (43) is brightly arranged; A diffuse reflection type infrared photoelectric switch (44) is fixedly mounted on the inner side of the protective cover (41); and The alarm (45) is fixedly mounted on the outer side of the protective cover (41) and is electrically connected to the diffuse reflection type infrared photoelectric switch (44).

6. The excavation device for caisson construction according to claim 1, characterized in that: The excavation push driving assembly (6) comprises: A driving motor (61) is fixedly mounted on a side surface of the profile frame (5) away from the electric suspension arm (1); A screw rod (62) is fixedly mounted on the output end of the driving motor (61) and can rotate axially under the drive of the driving motor (61); A guide rod (63) is fixedly mounted on a side surface of the profile 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 threadedly connected to the outer side of the screw rod (62) and is slidably connected to the guide rod (63).

7. A tunneling device for caisson construction according to claim 6, characterized in that: The push rod assembly (7) comprises: Straight rods (71) are arranged on both sides of the U-shaped sleeve (64) and are connected to the U-shaped sleeve (64), wherein the number of the straight rods (71) is set to be several and is equally divided into two groups; A threaded portion (72) is fixedly mounted on one end of the straight rod (71); and The threaded connection groove (73) is formed on the other end of the straight rod (71) and is adapted to the threaded portion (72). A plurality of straight rods (71) can be threadedly connected to the threaded portion (72) and the threaded connection groove (73) to form a long push rod. Two groups of long push rods together form a downward push member.

8. The excavation 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) connected to the connecting groove (13) is provided on the surface of the U-shaped sleeve (64), wherein the straight rod (71) and the U-shaped sleeve (64) are connected to each other via the connecting groove (13) and the fixing bolt (14), wherein a guide sleeve (15) is fixedly mounted on the side wall of the U-shaped frame (5), and the straight rod (71) is located on the inner side of the guide sleeve (15) and can slide vertically in the guide sleeve (15).

9. The excavation device for caisson construction according to claim 8, characterized in that: The multi-angle excavation assembly (8) comprises: A cross mounting frame (81) is fixedly mounted on the end of the lowest straight rod (71), wherein a universal adjustment seat (82) is provided at one end of the cross mounting frame (81) away from the straight rod (71); A mounting seat (83) is disposed on the universal adjustment seat (82), wherein the mounting seat (83) is connected to the cross mounting frame (81) via the universal adjustment seat (82); The cylinder (84) is arranged through the center of the mounting seat (83), and one end of the cylinder (84) close to the ground is open; A driving motor (85) is fixedly mounted on a surface of the cylinder (84) away from the ground, and an output end thereof penetrates and extends to the inner side of the cylinder (84); A drilling bit (86) is fixedly mounted on the output end of the driving motor (85) and one end of which extends to the outside of the cylinder (84); and The delivery pipe (87) has one end fixedly mounted on the outside of the cylinder (84) and is in communication with the cylinder (84).

10. The excavation device for caisson construction according to claim 9, characterized in that: The universal adjustment seat (82) comprises: The first ball head seat (821) is fixedly mounted on the end of the cross mounting frame (81) away from the straight rod (71), and the number of the first ball head seat (821) is not less than four and is symmetrically distributed according to the center of the cross mounting frame (81); A first universal ball head (822) is arranged on the inner side of the first ball head seat (821), and the number and distribution position of the first universal ball head seat (821) are matched with the first ball head seat (821); The hydraulic push rod (823) is fixedly mounted on the outside of the first universal ball head (822), and the output end thereof is fixedly mounted with a second universal ball head (824) and The second ball head seat (825) is fixedly mounted on a side surface of the mounting seat (83) close to the cross mounting frame (81), and the second universal ball head (824) is arranged on the inner side of the second ball head seat (825).

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