Pipe jacking construction hole opening auxiliary device

Abstract

A pipe jacking construction hole opening auxiliary device comprises a mounting assembly frame, the mounting assembly frame can be fixed to the ground, and a positioning barrel capable of ascending and descending is mounted on the mounting assembly frame and horizontally arranged; the positioning cylinder is connected with a positioning disc through a plurality of connecting rods, a positioning hole is horizontally formed in the middle of the positioning disc in a penetrating mode, and the coaxiality of the positioning hole and the positioning cylinder is consistent; a plurality of sets of positioning wheels are arranged in the circumferential direction of the positioning hole, the section, in the radial direction, of each positioning wheel is perpendicular to the section, in the radial direction, of the positioning disc, the positioning wheels are connected with mounting parts, and the positions, relative to the circle center of the positioning hole, of the mounting parts can be adjusted. The drill rod is effectively prevented from deviating, shearing force borne by the drill rod in the working process is reduced, and the punching effect and the service life of the drill rod are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of drilling technology for pipe jacking machines, specifically to an auxiliary device for the opening of a pipe jacking construction site. Background Technology

[0002] A water-cooled pipe jacking machine is an underground drilling device manufactured using trenchless technology. It is mainly used for laying pipelines in engineering construction. Its features include compactness and flexibility. Compared with hydraulic pipe jacking machines, water-cooled pipe jacking machines have higher working efficiency. The jacking rod uses a high-strength water-injectable jacking rod. During the working process, the water-cooled pipe jacking machine uses water injection to change the residual soil into mud, thereby reducing the friction of the jacking force. Compared with the excavation technology for laying pipelines, it can help protect the soil.

[0003] Existing patent CN219946772U – an automatic water-drilling pipe jacking machine – has a similar structure to the pipe jacking machine in the comparative patent. A rotary motor is connected to a long drill rod, which drives the drill rod to rotate. The rotary motor and the drill rod can move back and forth as a whole to complete the drilling work. However, during use, due to the long length of the drill rod, it is very easy for it to deviate during the translation process due to the influence of the geological conditions. On the one hand, this will affect the position and dimensional accuracy of the drill hole, resulting in a large deviation from the size of the pipe to be laid, which will affect the laying of the pipe. On the other hand, the drill rod will be subjected to a large shear force after deviating, which will damage the drill rod and even cause it to break. Utility Model Content

[0004] To address the technical problems existing in the background art mentioned above, this utility model provides an auxiliary device for pipe jacking construction openings.

[0005] The technical solution of this utility model is as follows:

[0006] An auxiliary device for pipe jacking construction opening includes an installation frame that can be fixed to the ground. A positioning cylinder that can be raised and lowered is installed on the installation frame and is arranged horizontally.

[0007] The positioning cylinder is connected to the positioning disk by multiple connecting rods. The positioning disk has a horizontally penetrating positioning hole in the middle, and the positioning hole is coaxial with the positioning cylinder.

[0008] Multiple sets of positioning wheels are arranged circumferentially along the positioning hole, and the cross-section of the positioning wheel in the radial direction is perpendicular to the cross-section of the positioning disk in the radial direction. The positioning wheel is connected to a mounting component, and the position of the mounting component relative to the center of the positioning hole can be adjusted.

[0009] The positioning cylinder is installed as follows: the mounting frame includes a base plate, a driving component is mounted on the base plate, and the driving component is connected to the positioning cylinder and can drive the positioning cylinder to rise and fall.

[0010] The drive component is specifically designed as follows: it includes a lead screw and a limiting rod mounted on a base plate. The lead screw is rotatably connected to the base plate. A threaded cylinder with a threaded connection to the lead screw is mounted on one side of the positioning cylinder, and a sleeve with a slidable connection to the limiting rod is mounted on the other side. The mounting assembly also includes a top plate, and the limiting rod is connected to the top plate. The lead screw passes through the top plate and is connected to a rocker arm.

[0011] To facilitate fixing the base plate to the ground, multiple fixing rods are installed at the bottom of the base plate.

[0012] The mounting component is specifically designed to include a slider that is slidably connected to the positioning disk, and the slider can be fixed to the positioning disk at multiple positions in its sliding direction.

[0013] A U-shaped rod is installed on the side of the slider away from the positioning plate, with its opening facing the positioning plate. The positioning wheel is rotatably connected to the end of the U-shaped rod away from the slider.

[0014] To improve the stability of the slider and facilitate its fixation, the positioning plate has a convex groove on its side facing the center, and the slider is slidably connected to the convex groove.

[0015] Multiple threaded holes are formed along the direction of the convex groove, and the slider is fixed to the positioning plate by a fixing bolt engaging with any of the threaded holes.

[0016] To facilitate fixing the positioning plate to the soil around the opening, multiple L-shaped insert rods are installed on the side of the positioning plate, with the tips of the insert rods extending away from the positioning plate.

[0017] To prevent the U-shaped rod from obstructing the fixing of the L-shaped rod to the soil, the L-shaped rod extends beyond the side of the U-shaped rod away from the positioning plate in the direction away from the end face of the positioning plate.

[0018] To improve the limiting effect on the drill rod of the pipe jacking machine, four positioning wheels are provided and are evenly distributed in a circle relative to the positioning holes.

[0019] The beneficial effects of this utility model are as follows: This utility model is an auxiliary device for the opening of a pipe jacking construction site. The positioning plate is placed at the opening of the pipe jacking machine where drilling is to be performed. Firstly, through the design of the positioning cylinder and positioning plate, and with a positioning hole opened at the positioning plate, the drill rod of the pipe jacking machine can pass through, achieving support for the drill rod at the opening and limiting its position. This effectively prevents the drill rod from deviating and reduces the shear force experienced by the drill rod during operation, ensuring drilling effect and drill rod service life. Secondly, the positioning cylinder can be raised and lowered, allowing the device to adjust its height, thereby achieving support and limiting for drill rods working at different heights. Finally, through the design of multiple positioning wheels, and the adjustable dimensions of the positioning wheels relative to the center of the positioning hole, the device can be adjusted according to the diameter of the drill rod, adapting to support and limiting drill rods of different diameters during operation. Attached Figure Description

[0020] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0021] In the attached diagram:

[0022] Figure 1 This is a front view of the overall structure of this design.

[0023] Figure 2 This is a partial structural diagram of the scheme;

[0024] Figure 3 This is a schematic diagram of the installation of the positioning cylinder and mounting components;

[0025] Figure 4 This is a side view of the overall structure of this scheme;

[0026] The components represented by the various reference numerals in the diagram are:

[0027] 1. Mounting frame; 11. Base plate; 12. Lead screw; 13. Limiting rod; 14. Threaded cylinder; 15. Sleeve; 16. Top plate; 17. Rocker arm; 18. Fixing rod; 2. Positioning cylinder; 3. Connecting rod; 4. Positioning plate; 5. Positioning hole; 6. Positioning wheel; 7. Mounting component; 71. Slider; 72. U-shaped rod; 8. Convex groove; 9. Threaded hole; 10. L-shaped rod. Detailed Implementation

[0028] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0029] Example

[0030] As mentioned in the background section, the existing pipe jacking machine designs are similar to those in the comparative patents and have many defects. In actual use and observation, the inventors found that the drill rod of the pipe jacking machine is relatively long, and the drill rod is prone to deviation during drilling. This not only affects the drilling quality and subsequent pipeline laying, but also causes the drill rod to be subjected to greater stress, making it prone to damage or breakage. Therefore, the inventors designed a drill rod auxiliary device, which is installed at the opening of the hole to be drilled to support and limit the movement of the drill rod. The following is a detailed explanation with reference to the illustrations.

[0031] This embodiment provides an auxiliary device for pipe jacking construction openings; see [link / reference]. Figure 1 The system includes a mounting frame 1, which can be fixed to the ground. The mounting frame 1 includes a base plate 11, which is rectangular. The base plate 11 has multiple fixing rods 18 installed at its bottom. The fixing rods 18 are arranged in two rows and can be inserted into the ground to fix the base plate 11.

[0032] In this embodiment, combined with Figure 3 The mounting frame 1 is equipped with a lifting positioning cylinder 2, which is horizontally arranged and transversely connected. Specifically, the positioning cylinder 2 is installed on the mounting assembly as follows: a driving component is installed on the base plate 11, and the driving component is connected to the positioning cylinder 2 and can drive the positioning cylinder 2 to rise and fall. Through the design of the driving component, the positioning cylinder 2 can be driven to rise and fall. The driving component includes a lead screw 12 and a limiting rod 13 installed on the base plate 11. The lead screw 12 and the limiting rod 13 are both vertically arranged and located on both sides of the axis of the positioning cylinder 2. The lead screw 12 is rotatably connected to the base plate 11. A threaded cylinder 14 is installed on one side of the positioning cylinder 2 and is threadedly connected to the lead screw 12. When the lead screw 12 rotates, it can drive the threaded cylinder 14 to move up and down along the lead screw 12. A sleeve 15 is installed on the other side and is slidably connected to the limiting rod 13. By setting the limiting rod 13 and the sleeve 15, when the positioning cylinder 2 moves up and down, the limiting rod 13 can limit the rotation of the positioning cylinder 2 and improve the stability of the lifting and lowering of the positioning cylinder 2.

[0033] In addition, to ensure the rotation of the lead screw 12 and the stability of the limiting rod 13, the mounting assembly also includes a top plate 16, and the limiting rod 13 is connected to the top plate 16. The top plate 16 limits the limiting rod 13. The lead screw 12 passes through the top plate 16 and is connected to a rocker arm 17. When it is necessary to adjust the positioning cylinder 2, the lead screw 12 can be rotated by rotating the rocker arm 17, which facilitates the application of force for the rotation of the lead screw 12.

[0034] Based on the above structure, combined with Figure 4The positioning cylinder 2 is connected to the positioning disk 4 by multiple connecting rods 3. In this scheme, four connecting rods 3 are connected to the outer edge of the positioning cylinder 2 and are evenly distributed in an array. They can be fixed by welding or bolts. The connecting rods 3 extend toward the positioning disk 4 and are fixed to the rear end face of the positioning disk 4. The positioning disk 4 has a horizontally penetrating positioning hole 5 in the middle, and the positioning hole 5 is coaxial with the positioning cylinder 2. That is, the positioning cylinder 2 and the positioning disk 4 are both arranged horizontally. During the construction of the pipe jacking machine, the drill rod passes through the positioning cylinder 2 and the positioning hole 5, and the two support and limit it.

[0035] In this embodiment, combined with Figure 2 To support and limit drill rods of different diameters, multiple sets of positioning wheels 6 are arranged circumferentially along the positioning hole 5. There are four positioning wheels 6, evenly distributed around the circle of the positioning hole 5, located in the four directions of up, down, left, and right. The radial cross-section of each positioning wheel 6 is perpendicular to the radial cross-section of the positioning disk 4, meaning that the rotation of each positioning wheel 6 guides the translation of the drill rod. Each positioning wheel 6 is connected to a mounting component 7, and the position of the mounting component 7 relative to the center of the positioning hole 5 is adjustable. By adjusting the position of the mounting component 7, the distance between the directional wheel and the center of the positioning hole 5 can be adjusted, thereby adjusting the distance between the four positioning wheels 6 to support and limit drill rods of different diameters.

[0036] It should be noted that when the lead screw 12 rotates and drives the positioning cylinder 2 to rise and fall, the positioning plate 4 can move up and down with the positioning cylinder 2 through the connecting rod 3, which in turn can drive the positioning hole 5 to rise and fall. Ultimately, it can be adjusted to match the working height of the drill rod, so that this auxiliary device is not limited to the use of drill rods of one height, thus improving its practicality.

[0037] Based on the above structure, the mounting component 7 includes a slider 71 that is slidably connected to the positioning disk 4. The positioning disk 4 has a convex groove 8 formed on its side facing the center, such as... Figure 4As shown, the convex groove 8 penetrates the front end face of the positioning disk 4, but does not penetrate the positioning hole 5. The front of the convex groove 8 can limit the slider 71. By setting the convex groove 8, the slider 71 can slide inside, and the slider 71 can be fixed to the positioning disk 4 at multiple positions in its sliding direction, thereby realizing the distance between the slider 71 and the center of the positioning hole 5. Multiple threaded holes 9 are opened along the direction of the convex groove 8, and the slider 71 is fixed to the positioning disk 4 by fixing bolts cooperating with any of the threaded holes 9. A U-shaped rod 72 is installed on the side of the slider 71 away from the positioning disk 4, with its opening facing the positioning disk 4 and its other end facing the center of the positioning hole 5. The positioning wheel 6 is rotatably connected to the end of the U-shaped rod 72 away from the slider 71. By sliding the slider 71 along the convex groove 8, the slider 71 can move the U-shaped rod 72, so that the positioning wheel 6 can adjust the distance from the center of the positioning hole 5 along with the U-shaped rod 72.

[0038] In addition, multiple L-shaped insert rods 10 are installed on the side of the positioning plate 4, and the tips of the insert rods extend toward the side away from the positioning plate 4. Furthermore, the extension of the L-shaped insert rods 10 toward the side away from the end face of the positioning plate 4 extends beyond the side of the U-shaped rod 72 away from the positioning plate 4. The L-shaped insert rods 10 can be used to fix the positioning plate 4 to the soil around the hole to be drilled.

[0039] Specifically, before the pipe jacking machine starts working, adjust the lead screw 12 according to the actual drilling height of the drill rod, drive the positioning cylinder 2 and positioning plate 4 to rise and fall, so that the center of the positioning hole 5 is collinear with the axis of the drill rod. Then, fix the auxiliary device to the drilling position, fix the fixed insertion rod 18 to the ground, fix the L-shaped insertion rod 10 around the hole to be drilled (the hole to be drilled), adjust the distance between the positioning wheels 6 to match the diameter of the drill rod, start the pipe jacking machine to drive the drill rod to rotate and translate, passing through the positioning cylinder 2 and positioning hole 5. The positioning wheels 6 can limit and support the translation of the drill rod.

Claims

1. An auxiliary device for pipe jacking construction openings, characterized in that, It includes an installation frame (1), which can be fixed to the ground. The installation frame (1) is equipped with a positioning cylinder (2) that can be raised and lowered, and the positioning cylinder (2) is arranged horizontally. The positioning cylinder (2) is connected to the positioning disk (4) by multiple connecting rods (3). The positioning disk (4) has a horizontally penetrating positioning hole (5) in the middle, and the positioning hole (5) is coaxial with the positioning cylinder (2). Multiple sets of positioning wheels (6) are arranged circumferentially along the positioning hole (5), and the cross section of the positioning wheel (6) in the radial direction is perpendicular to the cross section of the positioning disk (4) in the radial direction. The positioning wheel (6) is connected to a mounting part (7), and the position of the mounting part (7) relative to the center of the positioning hole (5) can be adjusted.

2. The auxiliary device for pipe jacking construction openings according to claim 1, characterized in that, The mounting frame (1) includes a base plate (11), on which a driving component is mounted, and the driving component is connected to the positioning cylinder (2) and can drive the positioning cylinder (2) to rise and fall.

3. The auxiliary device for pipe jacking construction opening according to claim 2, characterized in that, The driving component includes a lead screw (12) and a limiting rod (13) mounted on the base plate (11). The lead screw (12) is rotatably connected to the base plate (11). The positioning cylinder (2) has a threaded cylinder (14) threadedly connected to the lead screw (12) on one side and a sleeve (15) slidably connected to the limiting rod (13) on the other side.

4. The auxiliary device for pipe jacking construction opening according to claim 3, characterized in that, The mounting frame (1) also includes a top plate (16), and a limiting rod (13) is connected to the top plate (16). The lead screw (12) passes through the top plate (16) and is connected to a rocker arm (17).

5. The auxiliary device for pipe jacking construction opening according to claim 2, characterized in that, Multiple fixing rods (18) are installed at the bottom of the base plate (11).

6. The auxiliary device for pipe jacking construction opening according to claim 1, characterized in that, The mounting component (7) includes a slider (71) that is slidably connected to the positioning disk (4), and the slider (71) can be fixed to the positioning disk (4) at multiple positions in its sliding direction; A U-shaped rod (72) is installed on the side of the slider (71) away from the positioning disk (4), and the opening faces the positioning disk (4). The positioning wheel (6) is rotatably connected to the end of the U-shaped rod (72) away from the slider (71).

7. The auxiliary device for pipe jacking construction opening according to claim 6, characterized in that, The positioning disk (4) has a convex groove (8) on its side facing the center, and the slider (71) is slidably connected to the convex groove (8); Multiple threaded holes (9) are opened along the direction of the convex groove (8), and the slider (71) and the positioning plate (4) are fixed by a fixing bolt cooperating with any of the threaded holes (9).

8. The auxiliary device for pipe jacking construction opening according to claim 6, characterized in that, The positioning disk (4) has multiple L-shaped inserts (10) installed on its side, with the tips of the inserts extending toward the side away from the positioning disk (4).

9. The auxiliary device for pipe jacking construction opening according to claim 8, characterized in that, The L-shaped insert (10) extends beyond the side of the U-shaped rod (72) away from the positioning plate (4) in the direction away from the end face of the positioning plate (4).

10. The auxiliary device for pipe jacking construction opening according to claim 1, characterized in that, The positioning wheels (6) are provided in four parts and are evenly distributed in a circle relative to the positioning holes (5).

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