Pipe jacking apparatus with steel brush

Abstract

The utility model discloses a kind of pipe jacking devices with steel brush, including head, steel brush assembly, water inlet hole and top pipe, head is connected with top pipe, steel brush assembly is evenly arranged with at least two groups along the outer wall circumference direction of top pipe main body front end middle part, water inlet hole is opened in top pipe main body, and water inlet hole is communicated with water pump by water pipe, head is provided with several water outlets.The utility model has beneficial effect: the utility model is by optimizing the structure of removing chip, ensure that the rock debris of different particle size, hardness have stable cleaning effect, adapt to complex geological conditions;Reduce the friction of pipeline and stratum, reduce jacking resistance, improve construction efficiency;Simplify the maintenance process of removing chip structure, avoid the construction interruption caused by the frequent loss of removing chip component, by optimizing the structure of removing chip, ensure that the rock debris of different particle size, hardness have stable cleaning effect, adapt to complex geological conditions;Reduce the friction of pipeline and stratum, reduce jacking resistance, improve construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pipe jacking technology, specifically to a pipe jacking device with a steel brush. Background Technology

[0002] In the field of underground pipeline construction, pipe jacking technology is widely used in municipal engineering, mineral transportation, and other scenarios due to its advantages such as eliminating the need for ground excavation and minimizing environmental impact. Existing pipe jacking systems mainly consist of a jacking mechanism, the main pipe body, and a guiding system. The jacking force pushes the pipe section by section into the ground to complete the laying process. However, when traversing complex geological formations such as rock strata and weathered rock, a large amount of rock debris, such as gravel and sand, is generated during the contact between the pipe's outer wall and the ground. These rock debris easily adhere to the pipe wall surface and gradually accumulate, causing a sharp increase in friction between the pipe and the surrounding ground, resulting in a "pipe entanglement" phenomenon. Once pipe entanglement occurs, it causes a surge in jacking resistance, not only reducing construction efficiency but also potentially leading to pipe deformation and overload damage to the jacking equipment.

[0003] Currently, the industry's measures for removing rock cuttings have significant shortcomings: some solutions use scraper structures on the outside of the pipe wall, but the scrapers are easily worn due to their hard contact with the ground, and their effectiveness in removing irregular rock cuttings is limited; another solution involves spraying water onto the pipe wall to flush away rock cuttings, but in dry and hard strata, water is easily lost, failing to achieve effective flushing, and may even cause mudstone to soften upon contact with water, exacerbating adhesion; manual periodic cuttings removal requires interrupting construction, severely impacting the project schedule, and is difficult to implement in deeply buried or high-risk strata. Therefore, how to remove rock cuttings from the pipe wall in real time, efficiently, and adaptively during pipe jacking construction has become a key technical challenge in solving the pipe clamping problem, and existing technologies have not yet formed a reliable solution.

[0004] Therefore, it is necessary to propose a pipe jacking device with a steel brush in response to the above technical solution. Utility Model Content

[0005] The purpose of this invention is to provide a pipe jacking device with a steel brush to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipe jacking device with a steel brush, comprising a machine head, a steel brush assembly, a water inlet, and a pipe. The machine head is connected to the pipe. At least two sets of steel brush assemblies are evenly arranged along the outer circumferential direction of the middle of the front end of the pipe body. The water inlet is opened on the pipe body and is connected to a water pump through a water pipe. The machine head is provided with several water outlets.

[0007] Preferably, the number of steel brush assemblies is three.

[0008] Preferably, a reinforcing support frame is provided inside the jacking pipe body.

[0009] Preferably, the front part of the machine head is provided with a plurality of cutting blades.

[0010] Preferably, both the outer and inner walls of the jacking pipe are provided with reinforcing ribs.

[0011] Preferably, the jacking pipe is detachably connected to the machine head.

[0012] Preferably, the side of the top pipe is provided with several water spray holes at the edge of the steel brush.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention optimizes the chip removal structure to ensure a stable removal effect on rock chips of different sizes and hardnesses, adapting to complex geological conditions; reduces friction between the pipeline and the stratum, decreases jacking resistance, and improves construction efficiency; simplifies the maintenance process of the chip removal structure, avoiding construction interruptions caused by frequent wear and tear of chip removal components. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the present invention;

[0016] Figure 2 A schematic diagram of the side structure provided for this utility model;

[0017] Figure 3 A schematic diagram of the rear structure provided for this utility model;

[0018] Figure 4 A schematic diagram of the steel brush assembly provided by this utility model.

[0019] The attached diagram shows the following labels: 1. Machine head; 2. Steel brush assembly; 3. Water inlet; 4. Top pipe; 5. Water pipe.

[0020] 6. Water pump; 7. Water outlet; 8. Reinforcing support frame; 9. Cutting blade; 10. Reinforcing rib; 11. Water spray hole; 12. Connecting pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-4 As shown, this utility model provides a technical solution: a pipe jacking device with a steel brush, including a machine head 1, a steel brush assembly 2, a water inlet 3, and a pipe 4. The machine head 1 is connected to the pipe 4. The steel brush assembly 2 is evenly arranged in at least two sets along the outer circumferential direction of the middle of the front end of the main body of the pipe 4. The water inlet 3 is opened on the main body of the pipe 4 and is connected to a water pump 6 through a water pipe 5. The machine head 1 is provided with a plurality of water outlets 7.

[0023] Furthermore, the steel brush assembly 2 consists of three sets. Multiple sets of steel brushes can improve the cleaning effect.

[0024] Furthermore, a reinforcing support frame 8 is provided inside the main body of the jacking pipe 4. The reinforcing support frame 8 can improve the strength of the main body of the jacking pipe 4.

[0025] Furthermore, the front part of the machine head 1 is provided with several cutting blades 9, which are used for drilling.

[0026] Furthermore, both the outer and inner walls of the jacking pipe 4 are provided with reinforcing ribs 10, which further improve the rigidity of the jacking pipe 4.

[0027] Furthermore, the jacking pipe 4 is detachably connected to the machine head 1. This detachable connection facilitates the replacement of the steel brush assembly 2 of the jacking pipe 4.

[0028] Furthermore, the side of the jacking pipe 4 is provided with several water spray holes 11 at the edge of the steel brush assembly 2. The water inlet 3 is connected to the water spray holes 11 through the connecting pipe 12, and the water spray holes 11 facilitate water to wash away the rock debris.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows: By optimizing the chip removal structure, this utility model ensures a stable removal effect on rock chips of different particle sizes and hardness, adapting to complex geological conditions; it reduces the friction between the pipeline and the stratum, reduces jacking resistance, and improves construction efficiency; it simplifies the maintenance process of the chip removal structure, avoiding construction interruptions caused by frequent wear and tear of chip removal components.

[0030] During construction, the jacking head 1 advances forward under the drive of the jacking power, and the cutting blade 9 at the front directly contacts the stratum, cutting and breaking the rock or soil to form rock debris. As the jacking pipe 4 continues to advance, at least two sets of steel brush assemblies 2, preferably three sets, evenly arranged along the circumference of the outer wall of the middle of the front end of the jacking pipe 4, simultaneously contact the stratum and the outer wall of the jacking pipe 4. Through the friction of the steel brush assemblies 2, the rock debris attached to the outer wall of the jacking pipe 4 and the surrounding stratum surface is cleaned. The setting of multiple sets of steel brush assemblies 2 can cover a wider area, ensuring that rock debris of different particle sizes and hardness is effectively removed, avoiding the accumulation of rock debris that affects the jacking process.

[0031] Meanwhile, the water pump 6 sends water into the device through the water inlet 3 on the main body of the jacking pipe 4 via the water pipe 5. Part of the water is sprayed out through the outlet 7 of the machine head 1 to cool and initially flush the cutting blade 9 and the area near the machine head 1. The other part of the water is transported through the connecting pipe to the spray hole 11 on the edge of the steel brush assembly 2 on the side of the jacking pipe 4. The water flow sprayed out of the spray hole 11 precisely flushes the rock debris cleaned by the steel brush assembly 2 and washes it away from the area around the jacking pipe 4, further reducing the obstruction of the jacking pipe 4 by the rock debris.

[0032] During the jacking process, the reinforced support frame 8 inside the main body of the jacking pipe 4, together with the reinforcing ribs 10 on the outer and inner walls, significantly improves the strength and rigidity of the jacking pipe 4, effectively resists the formation pressure, and prevents the jacking pipe 4 from deforming due to excessive stress. The dual effect of the steel brush assembly 2 cleaning rock cuttings and the water jet holes 11 flushing rock cuttings greatly reduces the friction between the outer wall of the jacking pipe 4 and the formation, reduces jacking resistance, and improves construction efficiency.

[0033] Furthermore, the detachable connection design between the jacking pipe 4 and the machine head 1 allows for easy disassembly and replacement of the steel brush assembly 2 when it wears out due to long-term use. This simplifies the maintenance process, avoids construction interruptions caused by frequent wear of the cleaning components, and ensures the continuity of construction. Through the coordinated operation of the cutting blade 9, the cleaning by the steel brush assembly 2, the flushing by the water spray holes 11, the structural reinforcement by the reinforced support frame 8 and the reinforcing ribs 10, and the ease of maintenance, the device can adapt to complex geological conditions and achieve stable and efficient jacking pipe 4 construction.

[0034] Although embodiments of the present 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 present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A pipe jacking device with a steel brush, characterized in that: The device includes a head (1), a steel brush assembly (2), a water inlet (3), and a jacking pipe (4). The head (1) is connected to the jacking pipe (4). The steel brush assembly (2) is evenly arranged in at least two sets along the outer circumferential direction of the middle of the front end of the jacking pipe (4). The water inlet (3) is opened on the jacking pipe (4) and is connected to the water pump (6) through a water pipe (5). The head (1) is provided with several water outlets (7).

2. The pipe jacking device with steel brush as described in claim 1, characterized in that: The number of steel brush assemblies (2) is three.

3. The pipe jacking device with steel brush as described in claim 1, characterized in that: The jacking pipe (4) is equipped with a reinforcing support frame (8) inside its main body.

4. The pipe jacking device with steel brush as described in claim 1, characterized in that: The front part of the machine head (1) is provided with several cutting blades (9).

5. A pipe jacking device with a steel brush as described in claim 1, characterized in that: The outer and inner walls of the jacking pipe (4) are both provided with reinforcing ribs (10).

6. A pipe jacking device with a steel brush as described in claim 1, characterized in that: The jacking pipe (4) is detachably connected to the machine head (1).

7. A pipe jacking device with a steel brush as described in claim 1, characterized in that: The side of the top pipe (4) is provided with several water spray holes (11) at the edge of the steel brush assembly (2).

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