A pull tube end backwash prevention steel sleeve protection device

Abstract

The utility model discloses a kind of anti-backfilling steel sleeve protection devices of pipe-pulling end, comprising.The utility model in the process of actual use, PE pipeline is placed in steel pipe sleeve, bolt cooperates with nut to fix PE pipeline and prevent displacement, connecting rod is installed on the connecting head of conical reamer through fixed screw No.1, connecting ring is connected respectively with the distributor of connecting rod and the traction flange plate connector of steel pipe sleeve through fixed screw No.2, so that guide drill rod, conical reamer and steel pipe sleeve are connected, guide drill rod drives conical reamer reaming when pipe-pulling, steel pipe sleeve carries PE pipeline and advances along hole, this cooperation solves the problem that PE pipeline is easily damaged and slurry easily affects pipeline in traditional pipe-pulling, realizes PE pipeline safe laying, guarantees pipe-pulling operation smoothly, improves laying quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of anti-backflow steel sleeve protection device, specifically an anti-backflow steel sleeve protection device for the end of a pipe. Background Technology

[0002] A steel sleeve protection device for preventing grout backflow at the end of a pipe is a protective device used for the end of pipe grouting. It consists of a steel sleeve body, a sealing element, and a fixing structure. After installation at the end of the pipe, it tightly wraps around the pipe opening. During pipeline grouting and reinforcement construction, it can prevent grout from flowing back into the pipe, avoiding pipe blockage; at the same time, it protects the end of the pipe from construction collisions and reduces the entry of impurities into the pipe. It is suitable for municipal and building pipeline construction scenarios, is easy to install and disassemble, ensures the quality of pipe grouting construction and the normal use of subsequent pipelines, and reduces the risk of rework due to grout backflow or end damage. In existing technical solutions, the connection stability is not good. The connection components of some devices rely only on simple buckles or a single set of screws. During the pipe pulling process, due to factors such as the resistance of the underground soil, the weight of the pipe itself, and the traction and vibration of the construction equipment, the connection is prone to loosening or even falling off, causing the steel sleeve to separate from the pipe end. This not only fails to effectively prevent grout backflow, but may also cause the steel sleeve to shift underground, affecting the accuracy of subsequent pipeline construction and increasing the probability of rework. In order to solve this technical problem, this utility model proposes a steel sleeve protection device for preventing grout backflow at the pipe end. Utility Model Content

[0003] (a) Technical problems to be solved In existing technical solutions, the connection stability is not good. The connection components of some devices rely only on simple buckles or a single set of screws. During the pipe pulling process, due to factors such as the resistance of the underground soil, the weight of the pipe itself, and the traction and vibration of the construction equipment, the connection is prone to loosening or even falling off, causing the steel sleeve to separate from the pipe end. This not only fails to effectively prevent grout backflow, but may also cause the steel sleeve to shift underground, affecting the accuracy of subsequent pipeline construction and increasing the probability of rework. In order to solve this technical problem, this utility model proposes a steel sleeve protection device for preventing grout backflow at the pipe end.

[0004] (II) Technical Solution To achieve the above objectives, this utility model is implemented through the following technical solution: a steel sleeve protection device for preventing backflow at the end of a pipe, comprising a guide drill rod and a steel pipe sleeve, wherein a conical reamer is fixedly installed at one end of the guide drill rod, and a connecting assembly is provided between the conical reamer and the steel pipe sleeve, the connecting assembly comprising a connecting rod, a connecting ring and a connector, and two fixing screws are provided at both ends of the connecting ring.

[0005] Preferably, the other end of the tapered expander is fixedly connected to a connector, and one end of the connecting rod has an installation hole. The connecting rod is fixedly installed on the connector by a fixing screw.

[0006] Preferably, a transfer case is provided at the other end of the connecting rod, and one end of the connecting ring is mounted on the transfer case by a fixing screw.

[0007] Preferably, the other end of the connecting ring is fixedly mounted on one end of the connector by a fixing screw.

[0008] Preferably, one end of the steel pipe sleeve is fixedly connected to a traction flange plate, and the connector is slidably connected inside the traction flange plate.

[0009] Preferably, a pair of bolts are connected inside the steel pipe sleeve by cross-threaded connections, and each bolt is fixedly installed on the outer wall of the steel pipe sleeve by nuts at both ends. A PE pipe is installed inside the steel pipe sleeve.

[0010] (III) Beneficial Effects This utility model provides a steel sleeve protection device for preventing backflow at the end of a pipe. It has the following beneficial effects: (1) The PE pipe is placed inside the steel pipe sleeve. The bolts and nuts are used to fix the PE pipe to prevent displacement. The connecting rod is installed on the connecting head of the conical expander through the fixing screw one. The connecting ring is connected to the transfer device of the connecting rod and the traction flange connector of the steel pipe sleeve through the fixing screw two, so that the guide drill rod, the conical expander and the steel pipe sleeve are connected. When pulling the pipe, the guide drill rod drives the conical expander to expand the hole. The steel pipe sleeve carries the PE pipe forward along the channel. This combination solves the problem that the PE pipe is easily damaged and the slurry easily affects the pipe in the traditional pipe pulling, realizes the safe laying of PE pipe, ensures the smooth pipe pulling operation, and improves the laying quality and efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model; Figure 3 This is a side view of the present invention.

[0012] In the diagram: 1. Guide drill rod; 2. Tapered reamer; 3. Connecting rod; 4. Connector; 5. Mounting hole; 6. Fixing screw one; 7. Fixing screw two; 8. Connecting ring; 9. Connector; 10. Traction flange plate; 11. Steel pipe sleeve; 12. PE pipe; 13. Bolt; 14. Nut; 15. Transfer case. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0014] Please see Figure 1-3 This utility model provides a technical solution: Example 1: A steel sleeve protection device for preventing backflow at the end of a pipe, comprising a guide drill rod 1 and a steel pipe sleeve 11. A tapered reamer 2 is fixedly installed at one end of the guide drill rod 1. A connecting assembly is provided between the tapered reamer 2 and the steel pipe sleeve 11. The connecting assembly includes a connecting rod 3, a connecting ring 8, and a connector 9. Fixing screws 7 are provided at both ends of the connecting ring 8. A connector 4 is fixedly connected to the other end of the tapered reamer 2. An installation hole 5 is opened at one end of the connecting rod 3. One end of the connecting rod 3 is fixedly installed on the connector 4 by fixing screws 6. The other end of the rod 3 is equipped with a transfer case 15. One end of the connecting ring 8 is installed on the transfer case 15 by a fixing screw 7. The other end of the connecting ring 8 is fixedly installed on one end of the connector 9 by a fixing screw 7. One end of the steel pipe sleeve 11 is fixedly connected to a traction flange plate 10. The connector 9 is slidably connected inside the traction flange plate 10. A pair of bolts 13 are connected inside the steel pipe sleeve 11 by cross threads. The two ends of each bolt 13 are fixedly installed on the outer wall of the steel pipe sleeve 11 by nuts 14. A PE pipe 12 is installed inside the steel pipe sleeve 11.

[0015] The PE pipe 12 is placed inside the steel pipe sleeve 11. Using cross-laid bolts 13 and nuts 14, the PE pipe 12 is securely fixed inside the steel pipe sleeve 11 to prevent displacement during subsequent pipe pulling. Then, the guide drill rod 1, the tapered reamer 2, and the steel pipe sleeve 11 are connected via a connecting assembly. First, one end of the connecting rod 3 is mounted on the connector 4 of the tapered reamer 2 using a fixing screw 6. Then, one end of the connecting ring 8 is mounted on the transfer case 15 at the other end of the connecting rod 3 using a fixing screw 7. The other end of the connecting ring 8 is then mounted on the steel pipe sleeve 11 using a fixing screw 7. The connector 9 inside the traction flange 10 is connected to complete the overall connection. After starting the pipe pulling equipment, the guide drill rod 1 is moved. The guide drill rod 1 expands the hole through the tapered reamer 2. At the same time, under the traction of the connecting components, the steel pipe sleeve 11 carries the internal PE pipe 12 forward along the expanded hole. When pulling the pipe, the steel pipe sleeve 11 plays a protective role, preventing the PE pipe 12 from directly contacting the hole wall and being damaged, and also preventing the slurry in the hole from flowing back and affecting the PE pipe 12, ensuring the smooth progress of pipe pulling. After the pipe is pulled into place, the connecting components are removed, and the laying of the PE pipe 12 is completed.

[0016] Working principle: During pipe pulling, the PE pipe 12 is first placed inside the steel pipe sleeve 11. The PE pipe 12 is then securely fixed inside the steel pipe sleeve 11 using cross-laid bolts 13 and nuts 14 to prevent displacement during subsequent pipe pulling. Next, the guide drill rod 1, the tapered reamer 2, and the steel pipe sleeve 11 are connected using a connecting assembly: one end of the connecting rod 3 is mounted on the connector 4 of the tapered reamer 2 via a fixing screw 1 6. Then, one end of the connecting ring 8 is mounted on the transfer case 15 at the other end of the connecting rod 3 via a fixing screw 2 7. The other end of the connecting ring 8 is mounted on... The entire connection is completed on the connector 9 inside the traction flange plate 10 at one end of the steel pipe sleeve 11. Then, the pipe pulling equipment is started, which drives the guide drill rod 1 to move. The guide drill rod 1 expands the hole through the conical reamer 2. At the same time, under the traction of the connecting components, the steel pipe sleeve 11 carries the internal PE pipe 12 along the expanded hole. During the pipe pulling process, the steel pipe sleeve 11 plays a protective role, preventing the PE pipe 12 from directly contacting the hole wall and being damaged. It can also effectively prevent the slurry in the hole from flowing back and affecting the PE pipe 12, ensuring that the pipe pulling operation is completed smoothly. After the pipe is pulled into place, the connecting components are removed, and the laying of the PE pipe 12 is completed.

[0017] It should be noted that in this paper, relational terms such as first and second are used only 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.

Claims

1. A steel sleeve protection device for preventing backflow of slurry at the end of a pipe, characterized in that: It includes a guide drill rod (1) and a steel pipe sleeve (11). A tapered reamer (2) is fixedly installed at one end of the guide drill rod (1). A connecting component is provided between the tapered reamer (2) and the steel pipe sleeve (11). The connecting component includes a connecting rod (3), a connecting ring (8) and a connector (9). Both ends of the connecting ring (8) are provided with fixing screws (7).

2. The anti-backflow steel sleeve protection device for the end of a pipe as described in claim 1, characterized in that: The other end of the tapered expander (2) is fixedly connected to a connector (4), and one end of the connecting rod (3) is provided with an installation hole (5). One end of the connecting rod (3) is fixedly installed on the connector (4) by a fixing screw (6).

3. The anti-backflow steel sleeve protection device for the pipe end according to claim 2, characterized in that: The other end of the connecting rod (3) is provided with a transfer case (15), and one end of the connecting ring (8) is installed on the transfer case (15) by a fixing screw (7).

4. The anti-backflow steel sleeve protection device for the pipe end according to claim 3, characterized in that: The other end of the connecting ring (8) is fixedly installed on one end of the connector (9) by a fixing screw (7).

5. The anti-backflow steel sleeve protection device for the pipe end according to claim 4, characterized in that: One end of the steel pipe sleeve (11) is fixedly connected to the traction flange plate (10), and the connector (9) is slidably connected inside the traction flange plate (10).

6. The anti-backflow steel sleeve protection device for the pipe end according to claim 5, characterized in that: The steel pipe sleeve (11) is connected with a pair of bolts (13) through cross threads. Each bolt (13) is fixed at both ends by nuts (14) on the outer wall of the steel pipe sleeve (11). A PE pipe (12) is installed inside the steel pipe sleeve (11).

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