Accurate casing guiding device for casing jacking method construction

Abstract

The utility model relates to the technical field of casing pipe jacking method construction, and discloses a casing pipe accurate guide device for casing pipe jacking method construction, which comprises a driving assembly, a millstone is fixedly arranged at the output end of the driving assembly, a guide head and an extrusion block are fixedly arranged on the right side of the millstone, and a casing pipe is fixedly arranged on the left side of a clamping sleeve. The crushing cutter is fixedly installed on the right side of the extrusion block, firstly, the driving assembly moves forwards according to the designated position, at the moment, the driving assembly can drive the grinding disc to rotate, soil is crushed to be in a loose state, and at the moment, due to the conical structure of the guide head, the soil can be crushed easily; and an extrusion block is designed to be inclined, when the grinding disc rotates, the extrusion block can extrude the soil towards the outer side, so that the soil is discharged from the outer side and cannot be accumulated on the right side of the driving assembly, and the situation that the forward resistance of the driving assembly is increased due to accumulation and extrusion is avoided.

Description

Technical Field

[0001] This utility model relates to the field of top-sleeve construction technology, and more specifically, to a precision guide device for top-sleeve construction. Background Technology

[0002] The casing precision guiding device used in the casing jacking method is a key piece of equipment to ensure that the casing maintains its designed trajectory and accuracy during the jacking process. Its core function is to control the axial deviation of the casing, reduce frictional resistance, and improve construction efficiency. However, in most existing casing jacking construction methods, the casing is directly squeezed by a hydraulic device to expel the pipe. As the inside of the pipe is squeezed with soil, the resistance to the pipe's forward movement increases, affecting the overall installation efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a precision guide device for the casing in the top casing method construction, which has the advantage of reducing the resistance of soil to the advancement of the pipeline.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a precision guide device for top-casing construction, comprising a drive assembly, a grinding disc fixedly installed at the output end of the drive assembly, a guide head and an extrusion block fixedly installed on the right side of the grinding disc, a crushing blade fixedly installed on the right side of the extrusion block, a dividing groove being formed inside the crushing blade, a positioning ring fixedly installed on the left side of the drive assembly, a retaining sleeve fitted on the left side of the positioning ring, and a casing fixedly installed on the left side of the retaining sleeve.

[0005] As a preferred embodiment of this utility model, the bottom of the sleeve is provided with a base, the base is provided with a guide rail, a guide block is slidably connected inside the guide rail, a support plate is fixedly installed above the guide block, and a positioning chamber is fixedly installed above the support plate.

[0006] As a preferred embodiment of this utility model, a damping rod is fixedly installed inside the base, a spring is sleeved on the outside of the damping rod, and a docking plate is fixedly installed on the side of the spring near the support plate. The docking plate is fixedly connected to the support plate, and the docking plate is located at the bottom of the support plate.

[0007] As a preferred embodiment of this utility model, a sleeve rod is fixedly installed at the bottom of the base, a support rod is engaged inside the sleeve rod, and a support leg is fixedly installed at the bottom of the support rod.

[0008] As a preferred embodiment of this utility model, a mounting plate is fixedly installed at the bottom of the base, and a level is fixedly installed inside the mounting plate.

[0009] As a preferred embodiment of this utility model, there are multiple extrusion blocks, all of which are located on the right side of the grinding disc and are distributed around the guide head.

[0010] As a preferred embodiment of this utility model, the positioning chamber is arc-shaped, and the inner diameter of the positioning chamber is slightly larger than the diameter of the sleeve. The left side of the positioning chamber is closed, and a hydraulic component is provided on the left side of the positioning chamber.

[0011] As a preferred embodiment of this utility model, there are two guide rails and two guide blocks, and the two guide rails are slidably connected to the two guide blocks respectively. The two guide rails are located on the front and rear sides of the damping rod respectively.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model features a crushing blade fixedly installed on the right side of the extrusion block, with a dividing groove inside the crushing blade. A positioning ring is fixedly installed on the left side of the drive assembly, and a retaining sleeve is fitted on the left side of the positioning ring. A sleeve is fixedly installed on the left side of the retaining sleeve. When the sleeve is installed, the drive assembly is first advanced to the designated position. At this time, the drive assembly will drive the grinding disc to rotate, causing the soil to be crushed and loosened. Due to the conical structure of the guide head, the soil is crushed more easily. The extrusion block is designed with an inclination. When the grinding disc rotates, the extrusion block will squeeze the soil outward, thereby discharging the soil to the outside and preventing it from accumulating on the right side of the drive assembly. This avoids the situation where accumulation and compression increase the resistance of the drive assembly's forward movement.

[0014] 2. This utility model features a guide block slidably connected inside the guide rail, a support plate fixedly installed above the guide block, and a positioning chamber fixedly installed above the support plate. When the sleeve needs to be installed, the sleeve to be installed is first placed inside the positioning chamber. At this time, the hydraulic structure on the right side of the positioning chamber squeezes the positioning chamber, causing it to be pushed to the right. Simultaneously, the positioning chamber is slidably connected to the guide rail through the guide block at the bottom of the support plate, allowing for directional movement. This fixes the direction of movement of the positioning chamber, achieving a precise guiding effect and preventing angular deviation during sleeve installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A;

[0017] Figure 3This is a schematic diagram of the positioning chamber structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the sleeve structure of this utility model;

[0019] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point B.

[0020] In the diagram: 1. Drive assembly; 2. Grinding disc; 3. Guide head; 4. Extrusion block; 5. Crushing blade; 6. Dividing groove; 7. Positioning ring; 8. Sleeve; 9. Sleeve; 10. Base; 11. Guide rail; 12. Guide block; 13. Support plate; 14. Positioning chamber; 15. Damping rod; 16. Spring; 17. Connecting plate; 18. Sleeve rod; 19. Support rod; 20. Support leg; 21. Mounting plate; 22. Level. 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 to 5 As shown, this utility model provides a precision guide device for the top sleeve method construction, including a drive assembly 1. A grinding disc 2 is fixedly installed at the output end of the drive assembly 1. A guide head 3 and an extrusion block 4 are fixedly installed on the right side of the grinding disc 2. A crushing blade 5 is fixedly installed on the right side of the extrusion block 4. A dividing groove 6 is opened inside the crushing blade 5. A positioning ring 7 is fixedly installed on the left side of the drive assembly 1. A retaining sleeve 8 is sleeved on the left side of the positioning ring 7. A sleeve 9 is fixedly installed on the left side of the retaining sleeve 8.

[0023] When installing the sleeve 9, the drive assembly 1 is first advanced to the designated position. At this time, the drive assembly 1 will drive the grinding disc 2 to rotate, causing the soil to be broken and loosened. Due to the conical structure of the guide head 3, the soil is broken more easily. The design of the extrusion block 4 is inclined. When the grinding disc 2 rotates, the extrusion block 4 will extrude the soil to the outside, so that the soil is discharged to the outside and will not accumulate on the right side of the drive assembly 1. This avoids the situation where the accumulation and extrusion will increase the resistance of the drive assembly 1.

[0024] The sleeve 9 has a base 10 at its bottom, a guide rail 11 inside the base 10, a guide block 12 slidably connected inside the guide rail 11, a support plate 13 fixedly installed above the guide block 12, and a positioning chamber 14 fixedly installed above the support plate 13.

[0025] When the sleeve 9 needs to be installed, first place the sleeve 9 to be installed into the positioning chamber 14. At this time, the hydraulic structure on the right side of the positioning chamber 14 squeezes the positioning chamber 14, causing the positioning chamber 14 to be pushed to the right. At the same time, the positioning chamber 14 is slidably connected to the guide rail 11 through the guide block 12 at the bottom of the support plate 13, so as to move in a directional manner. This fixes the direction of movement of the positioning chamber 14, achieving a precise guiding effect, so that the sleeve 9 will not have an angular deviation during installation.

[0026] The base 10 has a damping rod 15 fixedly installed inside, and a spring 16 is sleeved on the outside of the damping rod 15. A docking plate 17 is fixedly installed on the side of the spring 16 near the support plate 13. The docking plate 17 is fixedly connected to the support plate 13 and is located at the bottom of the support plate 13.

[0027] When the support plate 13 moves with the positioning chamber 14 through the sliding action of the guide block 12 and the guide rail 11, the damping rod 15 and the spring 16 will retract to ensure the stability of the positioning chamber 14. At the same time, when the sleeve 9 is removed from the interior of the positioning chamber 14, the spring 16 will provide elastic force to push the docking plate 17 towards the hydraulic assembly, so that the positioning chamber 14 is reset, thereby facilitating the installation of the next sleeve 9.

[0028] Among them, a sleeve rod 18 is fixedly installed at the bottom of the base 10, a support rod 19 is engaged inside the sleeve rod 18, and a support leg 20 is fixedly installed at the bottom of the support rod 19.

[0029] Since the bottom of the pit dug during installation will be uneven, in order to ensure that the sleeve 9 is in a fixed position when it moves forward, the support rod 19 is engaged with the sleeve rod 18 so that the support leg 20 supports the base 10 and keeps the base 10 in an overall balanced state, thus maintaining overall stability. At the same time, when it is necessary to install at different heights, the position of the positioning chamber 14 can be adjusted by engaging the support rod 19 with the sleeve rod 18, so as to achieve the effect of adapting to different heights for installation.

[0030] The base 10 has a mounting plate 21 fixedly installed at its bottom, and a level 22 is fixedly installed inside the mounting plate 21.

[0031] The main function of the level 22 is to control the overall balance of the base 10 and prevent tilting, which could cause the drive assembly 1 to deviate in the direction of movement and cause errors.

[0032] There are multiple extrusion blocks 4, all of which are located on the right side of the grinding disc 2 and are distributed around the guide head 3.

[0033] When breaking ground, the guide head 3, due to its conical design, will squeeze the soil to both sides as it moves forward, pushing the soil onto the surface of the squeezing block 4. When the squeezing block 4 rotates, it will push the soil to both sides again, thus achieving a smooth forward movement of the sleeve 9.

[0034] The positioning chamber 14 is arc-shaped, and the inner diameter of the positioning chamber 14 is slightly larger than the diameter of the sleeve 9. The left side of the positioning chamber 14 is closed, and a hydraulic component is provided on the left side of the positioning chamber 14.

[0035] The positioning chamber 14 is fitted onto the sleeve 9, which facilitates the rapid positioning of the sleeve 9 and enables multiple fittings. At the same time, the hydraulic component drives the positioning chamber 14, pushing the sleeve 9 to the right, achieving the effect of rapid positioning and installation.

[0036] There are two guide rails 11 and two guide blocks 12. The two guide rails 11 are slidably connected to the two guide blocks 12 respectively. The two guide rails 11 are located on the front and rear sides of the damping rod 15 respectively.

[0037] The two guide blocks 12 are slidably connected to the two guide rails 11 respectively, so that the support plate 13 can move in a directional and stable manner, thereby achieving a stable effect.

[0038] Working principle and usage process of this utility model:

[0039] First, a crushing blade 5 is fixedly installed on the right side of the extrusion block 4. A dividing groove 6 is opened inside the crushing blade 5. A positioning ring 7 is fixedly installed on the left side of the drive assembly 1, and a retaining sleeve 8 is sleeved on the left side of the positioning ring 7. At the same time, a sleeve 9 is fixedly installed on the left side of the retaining sleeve 8. When the sleeve 9 is installed, the drive assembly 1 is first moved forward to the designated position. At this time, the drive assembly 1 will drive the grinding disc 2 to rotate, so that the soil is crushed and loosened. At this time, due to the conical structure of the guide head 3, the soil is crushed more easily. The extrusion block 4 is designed to be inclined. When the grinding disc 2 is rotating, the extrusion block 4 will squeeze the soil outward, so that the soil is discharged outward and will not accumulate on the right side of the drive assembly 1, so that the resistance of the drive assembly 1 will not increase due to accumulation and compression.

[0040] Secondly, since the bottom of the pit dug during installation will be uneven, in order to ensure that the sleeve 9 is in a fixed position when it moves forward, the support rod 19 is engaged with the sleeve rod 18 so that the support leg 20 supports the base 10, keeping the base 10 in an overall balanced state and maintaining overall stability.

[0041] Meanwhile, when it is necessary to install at positions with different height values, the support rod 19 can be engaged with the sleeve rod 18 to raise the position of the positioning chamber 14, so as to achieve the effect of adapting to the installation at positions with different heights.

[0042] Finally, when the sleeve 9 needs to be installed, the sleeve 9 to be installed is placed inside the positioning chamber 14. At this time, the hydraulic structure on the right side of the positioning chamber 14 squeezes the positioning chamber 14, causing the positioning chamber 14 to be pushed to the right. At the same time, the positioning chamber 14 is slidably connected to the guide rail 11 through the guide block 12 at the bottom of the support plate 13, so as to move in a directional manner. This fixes the direction of movement of the positioning chamber 14, achieving a precise guiding effect, so that the sleeve 9 will not deviate at an angle during installation.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] 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 claims and their equivalents.

Claims

1. A precision guide device for casing in top casing construction, comprising a drive assembly (1), characterized in that: A grinding disc (2) is fixedly installed at the output end of the drive assembly (1). A guide head (3) and an extrusion block (4) are fixedly installed on the right side of the grinding disc (2). A crushing blade (5) is fixedly installed on the right side of the extrusion block (4). A dividing groove (6) is opened inside the crushing blade (5). A positioning ring (7) is fixedly installed on the left side of the drive assembly (1). A retaining sleeve (8) is sleeved on the left side of the positioning ring (7). A sleeve (9) is fixedly installed on the left side of the retaining sleeve (8).

2. The casing precision guiding device for top casing construction according to claim 1, characterized in that: The bottom of the sleeve (9) is provided with a base (10), and a guide rail (11) is provided inside the base (10). A guide block (12) is slidably connected inside the guide rail (11). A support plate (13) is fixedly installed above the guide block (12), and a positioning chamber (14) is fixedly installed above the support plate (13).

3. The casing precision guiding device for top casing construction according to claim 2, characterized in that: A damping rod (15) is fixedly installed inside the base (10). A spring (16) is sleeved on the outside of the damping rod (15). A docking plate (17) is fixedly installed on the side of the spring (16) near the support plate (13). The docking plate (17) is fixedly connected to the support plate (13), and the docking plate (17) is located at the bottom of the support plate (13).

4. The casing precision guiding device for top casing method construction according to claim 2, characterized in that: A sleeve rod (18) is fixedly installed at the bottom of the base (10), and a support rod (19) is engaged inside the sleeve rod (18). A support leg (20) is fixedly installed at the bottom of the support rod (19).

5. A precision guide device for casing in top-casing construction according to claim 2, characterized in that: A mounting plate (21) is fixedly installed on the bottom of the base (10), and a level (22) is fixedly installed inside the mounting plate (21).

6. The casing precision guiding device for top casing method construction according to claim 1, characterized in that: There are multiple extrusion blocks (4), all of which are located on the right side of the grinding disc (2) and are distributed around the guide head (3).

7. A precision guide device for casing in top-casing construction according to claim 2, characterized in that: The positioning chamber (14) is arc-shaped, and the inner diameter of the positioning chamber (14) is slightly larger than the diameter of the sleeve (9). The left side of the positioning chamber (14) is closed, and a hydraulic component is provided on the left side of the positioning chamber (14).

8. A precision guide device for casing in top-casing construction according to claim 3, characterized in that: There are two guide rails (11) and two guide blocks (12). The two guide rails (11) are slidably connected to the two guide blocks (12) respectively. The two guide rails (11) are located on the front and rear sides of the damping rod (15) respectively.

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