Pipe jacking equipment

Abstract

The utility model discloses pipe jacking equipment, and relates to the field of water supply pipeline construction, the pipe jacking equipment comprises a support plate, a sleeve, a pipe clamping assembly, a hydraulic cylinder and two parallel guide rails, the front end of the sleeve is provided with a detachable conical head, the contraction of two hydraulic rods is controlled to enable an upper arc-shaped seat to move downwards, and the pipe clamping assembly is clamped on the upper arc-shaped seat. The sleeve is clamped and fixed between the upper arc-shaped base and the lower arc-shaped base, it is ensured that sliding or deviation does not exist in the jacking process, the construction precision is improved, the hydraulic cylinder extends to drive the sliding base to advance along the guide rail and is matched with the conical head to break soil, efficient and low-resistance pipe jacking operation is achieved, and damage to the road surface by traditional excavation is avoided; the hydraulic rod drives the upper arc-shaped seat to move upwards, the hydraulic cylinder shrinks to drive the sliding seat to retreat, the next round of propelling is prepared, an automatic cycle of clamping, propelling, releasing and retreating is formed, the construction efficiency is greatly improved, energy consumption is low, efficiency is high, and the device is suitable for being used in areas with unstable African power supply.

Description

Technical Field

[0001] This utility model belongs to the field of water supply pipeline construction, and specifically relates to a pipe jacking device. Background Technology

[0002] In the construction of modern urban infrastructure in Africa, when water supply pipelines need to cross normally operating highways, cement roads and other infrastructure, the selection and implementation of construction technology becomes the core and difficulty of the entire project, which is directly related to the efficiency, cost and normal operation safety of the infrastructure.

[0003] Horizontal directional drilling (HDD) technology is commonly used in trenchless construction. While this technology can achieve trenchless crossing construction to some extent and avoid traffic disruption, the equipment is complex, including multiple precision components such as drilling rig systems, mud systems, and guidance systems. Since African roads are typically two-lane (3.25-3.5 meters wide), using this technology results in high costs for equipment procurement, installation, and commissioning.

[0004] Therefore, we propose a pipe jacking device to solve the above problems. Utility Model Content

[0005] In view of the problem that horizontal directional drilling technology is commonly used in the field of trenchless construction, and that African roads are usually two lanes long, the use of this technology results in high costs for equipment procurement, installation and commissioning, this utility model provides a pipe jacking device.

[0006] The solution adopted by this utility model to solve its technical problem is: a pipe jacking device, including a support plate, a sleeve, a pipe clamping assembly, a hydraulic cylinder and two parallel guide rails, wherein the front end of the sleeve is provided with a detachable conical head;

[0007] The top of the support plate has an arc-shaped groove. One end of the guide rail is fixedly connected to the support plate. A sliding seat is provided between the two guide rails. Multiple pulleys are installed on the front and rear sides of the sliding seat. The pulleys are set inside the guide rail and can slide along the guide rail.

[0008] The tube clamping assembly is mounted on top of the sliding seat and is used to clamp the sleeve;

[0009] The hydraulic cylinder is fixedly installed on the right side of the support plate, and its piston rod passes through the support plate and is connected to the sliding seat.

[0010] Preferably, multiple support beams are fixedly installed at the bottom of the two guide rails.

[0011] Preferably, the tube clamping assembly includes a lower arc-shaped seat, an upper arc-shaped seat, and two hydraulic rods. The lower arc-shaped seat is installed on top of the sliding seat, and the upper arc-shaped seat is positioned above the lower arc-shaped seat. The two hydraulic rods are respectively installed on the front and rear edges of the lower arc-shaped seat. The piston rods of the hydraulic rods pass through the lower arc-shaped seat and are fixedly connected to the upper arc-shaped seat, clamping the sleeve between the lower arc-shaped seat and the upper arc-shaped seat.

[0012] Preferably, the left end of the sleeve is provided with an internal thread, and the tail end of the tapered head is provided with an external thread, so that the tapered head is threadedly connected to the sleeve.

[0013] Preferably, two bottom beams are installed on the right side of the support plate, and a support seat is installed between the two bottom beams, with the top of the support seat in contact with the outer surface of the hydraulic cylinder.

[0014] Preferably, multiple brackets are fixedly installed on the top of the bottom beam, and bearings are installed at the upper end of the brackets. A conical wheel axle is fitted inside the bearing, and the conical wheel contacts the outer surface of the sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model controls the contraction of two hydraulic rods to move the upper arc-shaped seat downward, clamping and fixing the casing between the upper and lower arc-shaped seats. This ensures no slippage or displacement during the jacking process, improving construction accuracy. The extension of the hydraulic cylinder drives the sliding seat forward along the guide rail, working in conjunction with the conical head to break the soil, achieving efficient and low-resistance pipe jacking operations. This avoids the damage to the road surface caused by traditional excavation. Furthermore, when the hydraulic cylinder extends to its limit, the hydraulic rod drives the upper arc-shaped seat upward, and the contraction of the hydraulic cylinder drives the sliding seat back, preparing for the next round of advancement. This forms an automated cycle of "clamping → advancing → releasing → retracting," significantly improving construction efficiency. It is low-energy and highly efficient, making it suitable for use in areas of Africa with unstable power supply.

[0017] 2. This utility model uses a sleeve and a conical head connected by threads. If the conical head is worn or damaged during construction, it can be quickly disassembled and replaced, avoiding long-term downtime for maintenance due to conical head problems, improving construction efficiency and reducing maintenance costs.

[0018] 3. This utility model, through the guide rail, sliding seat and pulley, combined with the push of the hydraulic cylinder, can realize the smooth and precise jacking of the casing, reduce the risk of casing deviation during construction, and improve construction accuracy and quality. Attached Figure Description

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

[0020] Figure 2 This is a schematic diagram of the sleeveless three-dimensional structure of this utility model.

[0021] In the diagram: 1 Support plate, 21 Bottom beam, 22 Bracket, 23 Conical wheel, 24 Support seat, 3 Hydraulic cylinder, 41 Hydraulic rod, 42 Sliding seat, 43 Lower arc seat, 44 Upper arc seat, 45 Pulley, 51 Support beam, 52 Guide rail, 61 Sleeve, 62 Conical head. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figure 1-2 This utility model provides a technical solution for a pipe jacking device:

[0024] Example 1:

[0025] according to Figure 1 and Figure 2 As shown, the system includes a support plate 1, a sleeve 61, a pipe clamping assembly, a hydraulic cylinder 3, and two parallel guide rails 52. The left end of the sleeve 61 has an internal thread, and the front end of the sleeve 61 has a tapered head 62. The tail end of the tapered head 62 has an external thread, so that the tapered head 62 is threadedly connected to the sleeve 61. During construction, if the tapered head 62 is worn or damaged, it can be quickly disassembled and replaced, avoiding long-term downtime for maintenance due to problems with the tapered head 62, improving construction efficiency, and reducing maintenance costs.

[0026] The top of the support plate 1 has an arc-shaped groove. One end of the guide rail 52 is fixedly connected to the support plate 1. Multiple support beams 51 are fixedly installed at the bottom of the two guide rails 52. A sliding seat 42 is provided between the two guide rails 52. Multiple pulleys 45 are installed on the front and rear sides of the sliding seat 42 respectively. The pulleys 45 are set inside the guide rails 52 and can slide along the guide rails 52. Through the guide rails 52, the sliding seat 42 and the pulleys 45, the sleeve 61 can be pushed in smoothly and accurately, reducing the risk of sleeve 61 deflection during construction and improving construction accuracy and quality.

[0027] The pipe clamping assembly includes a lower arc-shaped seat 43, an upper arc-shaped seat 44, and two hydraulic rods 41. The lower arc-shaped seat 43 is mounted on top of the sliding seat 42, and the upper arc-shaped seat 44 is positioned above the lower arc-shaped seat 43. The two hydraulic rods 41 are respectively mounted on the front and rear edges of the lower arc-shaped seat 43. The piston rods of the hydraulic rods 41 pass through the lower arc-shaped seat 43 and are fixedly connected to the upper arc-shaped seat 44, clamping the sleeve 61 between the lower arc-shaped seat 43 and the upper arc-shaped seat 44. Driven by the two hydraulic rods 41, the clamping and release are automatically completed, reducing manual operation and labor intensity.

[0028] Hydraulic cylinder 3 is fixedly installed on the right side of support plate 1. Its piston rod passes through support plate 1 and is connected to sliding seat 42. When hydraulic cylinder 3 extends, it drives sliding seat 42 to move forward along guide rail 52. In conjunction with cone head 62, it breaks the soil, realizing efficient and low-resistance pipe jacking operation, avoiding the damage to the road surface caused by traditional excavation. When hydraulic cylinder 3 extends to its limit, hydraulic rod 41 drives upper arc seat 44 to move upward. Hydraulic cylinder 3 retracts and drives sliding seat 42 to retract, preparing for the next round of advancement. This forms an automated cycle of "clamping → advancing → releasing → retracting", which greatly improves construction efficiency. It is low-energy and high-efficiency, and is suitable for use in areas of Africa with unstable power supply.

[0029] In practical use, the pipe jacking equipment of this utility model first fixes the support plate 1 and multiple support beams 51 horizontally on the foundation of the construction starting pit. Then, one end of the conical head 62 passes through the space between the upper arc seat 44 and the lower arc seat 43, so that the conical head 62 corresponds to the construction part. Then, the two hydraulic rods 41 are controlled to retract synchronously, which drives the upper arc seat 44 to move down and clamp and fix the sleeve 61 between the upper arc seat 44 and the lower arc seat 43. After that, the hydraulic cylinder 3 is started, the piston rod extends at a constant speed, pushes the sliding seat 42 forward along the guide rail 52, and drives the sleeve 61 and the conical head 62 to break through the soil and jack in.

[0030] When the hydraulic cylinder 3 reaches its maximum stroke, the hydraulic rod 41 retracts, causing the upper arc-shaped seat 44 to move upward, releasing the sleeve 61. The piston rod of the hydraulic cylinder 3 retracts, pulling the sliding seat 42 back to the starting position, preparing for the next round of advancement, forming an automated cycle of "clamping → advancing → releasing → retracting".

[0031] Example 2:

[0032] Based on Example 1, such as Figure 1 and Figure 2 As shown, two bottom beams 21 are installed on the right side of the support plate 1, and a support seat 24 is installed between the two bottom beams 21. The top of the support seat 24 contacts the outer surface of the hydraulic cylinder 3. Multiple brackets 22 are fixedly installed on the top of the bottom beams 21. Bearings are installed at the upper end of the brackets 22. The axle of the conical wheel 23 is fitted inside the bearing. The conical wheel 23 contacts the outer surface of the sleeve 61. The rear section of the sleeve 61 is supported by the conical wheels 23 on both sides, which improves the stability of the sleeve 61 during the pushing process.

Claims

1. A pipe jacking device, comprising a support plate, a sleeve, a pipe clamping assembly, a hydraulic cylinder, and two parallel guide rails, characterized in that: The front end of the sleeve is provided with a detachable tapered head; The top of the support plate has an arc-shaped groove. One end of the guide rail is fixedly connected to the support plate. A sliding seat is provided between the two guide rails. Multiple pulleys are installed on the front and rear sides of the sliding seat. The pulleys are set inside the guide rail and can slide along the guide rail. The tube clamping assembly is mounted on top of the sliding seat and is used to clamp the sleeve; The hydraulic cylinder is fixedly installed on the right side of the support plate, and its piston rod passes through the support plate and is connected to the sliding seat.

2. The pipe jacking equipment according to claim 1, characterized in that: Multiple support beams are fixedly installed at the bottom of the two guide rails.

3. The pipe jacking equipment according to claim 2, characterized in that: The tube clamping assembly includes a lower arc-shaped seat, an upper arc-shaped seat, and two hydraulic rods. The lower arc-shaped seat is installed on top of the sliding seat, and the upper arc-shaped seat is positioned above the lower arc-shaped seat. The two hydraulic rods are respectively installed on the front and rear edges of the lower arc-shaped seat. The piston rods of the hydraulic rods pass through the lower arc-shaped seat and are fixedly connected to the upper arc-shaped seat, clamping the sleeve between the lower arc-shaped seat and the upper arc-shaped seat.

4. The pipe jacking equipment according to claim 1, characterized in that: The left end of the sleeve is provided with an internal thread, and the tail end of the tapered head is provided with an external thread, so that the tapered head is threadedly connected to the sleeve.

5. The pipe jacking equipment according to claim 1, characterized in that: Two bottom beams are installed on the right side of the support plate, and a support seat is installed between the two bottom beams. The top of the support seat is in contact with the outer surface of the hydraulic cylinder.

6. The pipe jacking equipment according to claim 5, characterized in that: Multiple brackets are fixedly installed on the top of the bottom beam. Bearings are installed at the upper end of the brackets, and axles with conical wheels are fitted inside the bearings. The conical wheels are in contact with the outer surface of the sleeve.

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