Concrete micro-jacking pipe structure

By designing Fixing Device 1 and Fixing Device 2, and utilizing components such as moving parts, guide rails, rotating rings, and bolts, the problem of unstable connection of resin concrete micro-jacking pipes was solved, achieving stable connection and sealing, and preventing liquid leakage.

CN223895269UActive Publication Date: 2026-02-10FENGFA GRP CO LTD +1
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Patent Information

Application Number
CN202520365585.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-02-10
Estimated Expiration
2035-03-04

AI Technical Summary

Technical Problem

In existing technologies, resin concrete micro-jacking pipes lack robustness during connection, causing liquid to leak out from the gaps.

Method used

Fixing device one and fixing device two were designed. Through the cooperation of components such as moving components, guide rails, rotating rings and bolts, stable connection and sealing of micro jacking pipes are achieved.

Benefits of technology

This achieves a robust connection between the micro-tubes, preventing liquid leakage and improving the stability and sealing of the connection.

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Abstract

The utility model relates to a concrete micro-jacking pipe structure. A first fixing assembly used for being matched with a second fixing device to connect a first micro-jacking pipe and a second micro-jacking pipe is arranged at the right end of a moving assembly. And the second fixing device comprises a second circular ring fixedly installed on a pipe body of the second micro-jacking pipe, and a second fixing assembly used for being matched with the first fixing assembly to connect the first micro-jacking pipe and the second micro-jacking pipe in the opposite direction is fixedly installed at the left end of the second circular ring. A first circular ring moves rightwards along four guide rails to enable a first fixing assembly to be close to a second fixing device, then a rotating ring is rotated to enable four inserting grooves in the right side of the rotating ring to abut against inserting columns, the rotating ring is slightly rotated again to enable a locking groove to be matched with a locking plate to lock the inserting columns, and finally four bolts are connected with the rotating ring in a threaded mode. The four bolts abut against a pipe body of the first micro jacking pipe, so that the rotating ring can be limited, and the rotating ring is prevented from rotating; and therefore, the micro jacking pipe I and the micro jacking pipe II can be sealed.
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Description

Technical Field

[0001] This utility model relates to the field of micro jacking technology, and in particular to a concrete micro jacking structure. Background Technology

[0002] Micro-jacking technology is a new and modern construction technology that has emerged in China in recent years. Due to its advantages such as convenient construction, easier elevation control, and no settlement, it is the preferred method to replace drag-and-pull pipes, especially in the fields of sewage and drainage. When connecting two concrete micro-jacking pipes, they are usually installed by directly abutting them together. For example, as shown in Chinese patent application number CN202021095488.8, a resin concrete micro-jacking pipe has a fiberglass inner lining layer on the inner wall of the pipe. The fiberglass inner lining layer is a wound component with continuous circumferential fibers and short chopped fibers distributed in both directions. The outer wall of the pipe is a resin-rich surface felt layer, and the pipe ends are equipped with pipe interfaces sealed by sealing rings.

[0003] However, when connecting and installing two resin concrete micro-jacking pipes, since they are usually installed by directly pressing the two resin concrete micro-jacking pipes against each other, the connection between the two resin concrete micro-jacking pipes does not have a certain degree of firmness, which can easily cause liquid in the two pipes to leak out from the gap between them. Utility Model Content

[0004] To address the problem mentioned in the background art, where the connection between two resin concrete micro-jacking pipes is not sufficiently secure due to the common practice of directly abutting them together, leading to leakage of liquid from the gap between the two pipes, this utility model provides the following technical solution:

[0005] A concrete micro-jacking pipe structure includes a micro-jacking pipe one and a micro-jacking pipe two. The body of the micro-jacking pipe one is provided with a fixing device one for connecting the micro-jacking pipe one and the micro-jacking pipe two. The body of the micro-jacking pipe two is provided with a fixing device two for cooperating with the fixing device one to connect the micro-jacking pipe one and the micro-jacking pipe two.

[0006] The fixing device one includes a moving component fitted inside the micro jacking pipe one for left and right movement, and the right end of the moving component is provided with a fixing component one for cooperating with the fixing device two to connect the micro jacking pipe one and the micro jacking pipe two.

[0007] The second fixing device includes a second ring fixedly installed on the tube body of the second micro jacking pipe. The left end of the second ring is fixedly installed with a second fixing component for cooperating with the first fixing component to connect the first micro jacking pipe and the second micro jacking pipe.

[0008] Furthermore, the tube body of the micro jacking pipe is provided with guide rails for the left and right movement of the moving component, and there are four guide rails. The left and right ends of the guide rails are fixedly installed with limiting plates to prevent the moving component from detaching from the guide rails.

[0009] Furthermore, the movable component includes a ring that is fitted onto the micro-jacket and slides along the track of the guide rail, and the ring has a T-shaped groove inside for the fixed component to rotate.

[0010] Furthermore, the fixing component includes a T-shaped ring disposed in a T-slot for rotation, a rotating ring fixedly installed at the right end of the T-shaped ring, and a bolt for fixing the rotating ring threadedly connected to the ring body of the rotating ring.

[0011] Furthermore, the right end of the rotating ring is provided with a slot, and there are four slots. The bottom of the four slots is provided with a locking groove for cooperating with the fixing component two to connect the micro-top tube one and the micro-top tube two.

[0012] Furthermore, the second fixing component includes a pin fixedly installed at the left end of the second ring for insertion into the slot, and a locking plate fixedly installed at the left end of the pin for connecting the first micro-jacking tube and the second micro-jacking tube in cooperation with the locking groove.

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

[0014] By setting up fixing device one and fixing device two, when it is necessary to connect micro jacking pipe one and micro jacking pipe two, the ring one can be moved to the right along the four guide rails to bring fixing component one closer to fixing device two. Then, by rotating the rotating ring, the four slots on the right side of the rotating ring abut against the insert post. By slightly rotating the rotating ring again, the locking groove cooperates with the locking plate and locks the insert post. Finally, the threaded connection between the four bolts and the rotating ring is used to make the four bolts abut against the pipe body of micro jacking pipe one, which can restrict the rotating ring and prevent it from rotating. This can seal micro jacking pipe one and micro jacking pipe two. In addition, the slip ring is conveniently installed stably through the action of the T-shaped slider. Attached Figure Description

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

[0016] Figure 2 This is a front view of the present utility model;

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

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

[0019] Figure 5 This is a sectional view of the rotating ring of this utility model;

[0020] Figure 6 This is a schematic diagram of the second fixing device of this utility model.

[0021] The following is a list of component names represented by the various reference numerals in the attached figures:

[0022] 100-Micro jacking pipe one, 101-Guide rail, 102-Restriction plate;

[0023] 200-Micro top tube two;

[0024] 300-Fixing device one, 310-Moving component, 311-Ring one, 312-T-slot, 320-Fixing component one, 321-Rotating ring, 322-T-ring, 323-Bolt, 324-Slot, 325-Locking slot;

[0025] 400-Fixing device two, 410-Fixing component two, 411-Insertion post, 412-Locking plate, 420-Ring two. Detailed Implementation

[0026] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0027] Please see Figures 1-6 This utility model provides a concrete micro-jacking pipe structure.

[0028] It includes a micro jacking pipe 100 and a micro jacking pipe 200. The body of the micro jacking pipe 100 is provided with a fixing device 300 for connecting the micro jacking pipe 100 and the micro jacking pipe 200. The body of the micro jacking pipe 200 is provided with a fixing device 400 for cooperating with the fixing device 300 to connect the micro jacking pipe 100 and the micro jacking pipe 200.

[0029] The micro jacking pipe 100 has four guide rails 101 on its body for the moving component 310 to move left and right. The four guide rails 101 are arranged in a circular array on the body of the micro jacking pipe 100. The left and right ends of the four guide rails 101 are fixedly installed with limiting plates 102 to prevent the moving component 310 from detaching from the guide rails 101.

[0030] The fixing device 300 includes a moving component 310 that is fitted inside the micro jacking pipe 100 for left and right movement. The right end of the moving component 310 is provided with a fixing component 320 for cooperating with the fixing device 400 to connect the micro jacking pipe 100 and the micro jacking pipe 200.

[0031] The movable component 310 includes a ring 311 that is fitted onto the micro-jacket tube 100 and slides along the guide rail 101. The ring 311 has four sliding grooves arranged in a circular array on its ring body. The four sliding grooves on the ring 311 can move left and right along the four guide rails 101. The ring 311 has a T-shaped groove 312 for the fixed component 320 to rotate. The cross-section of the T-shaped groove 312 is circular to facilitate the rotation of the fixed component 320 within the T-shaped groove 312.

[0032] The fixing component 320 includes a T-shaped ring 322 disposed within a T-slot 312 for rotation. The shape and size of the T-shaped ring 322 are the same as those of the T-slot 312 to facilitate rotation of the T-shaped ring 322 within the T-slot 312 without it falling off. A rotating ring 321 is fixedly installed at the right end of the T-shaped ring 322. The rotating ring 321 is threadedly connected to the ring body with bolts 323 for fixing the rotating ring 321. There are four bolts 323, which are arranged in a circumferential array on the ring body of the rotating ring 321. The four bolts 323 are threadedly connected to the rotating ring 321, so that the four bolts 323 abut against the tube body of the micro-jacket tube 100, thereby restricting the rotating ring 321 and preventing it from rotating.

[0033] The right end of the rotating ring 321 has four slots 324 arranged in a circular array on the right end of the rotating ring 321. The bottom of each slot 324 has a locking groove 325 for connecting the micro-jacket 100 and the micro-jacket 200 in conjunction with the fixing component 2 410. Therefore, when it is necessary to connect the micro-jacket 100 and the micro-jacket 200, the ring 311 can be moved to the right along the four guide rails 101, bringing the fixing component 320 closer to the fixing device 2 400. By rotating the rotating ring 321, the four slots 324 on the right side of the rotating ring 321 are aligned with and inserted into the fixing component 2 410. The rotating ring 321 is then slightly rotated again to lock the fixing component 2 410 in place by the locking groove 325. Finally, the threaded connection between the four bolts 323 and the rotating ring 321 is used to press the four bolts 323 against the tube body of the micro jacking tube 100, thereby restricting the rotating ring 321 and preventing it from rotating. This allows the micro jacking tube 100 and the micro jacking tube 200 to be connected.

[0034] The fixing device 2 400 includes a ring 2 420 fixedly installed on the tube body of the micro jacking pipe 2 200. The left end of the ring 2 420 is fixedly installed with a fixing component 2 410 for cooperating with the fixing component 1 320 to connect the micro jacking pipe 1 100 and the micro jacking pipe 2 200.

[0035] The fixing component 2 410 includes four insertion posts 411 fixedly installed at the left end of the ring 2 420 for insertion into the slot 324. These four insertion posts 411 are arranged in a circumferential array and welded to the left end of the ring 2 420. A locking plate 412 is fixedly installed at the left end of each insertion post 411 for connecting the micro-jacket 1 100 and the micro-jacket 2 200 in conjunction with the locking groove 325. Therefore, when it is necessary to connect the micro-jacket 1 100 and the micro-jacket 2 200, the ring 1 311 can be moved to the right along the four guide rails 101, bringing the fixing component 1 320 closer to the fixing device 2 400. By rotating the rotating ring 321, the four slots 324 on the right side of the rotating ring 321 abut against the insert post 411. By slightly rotating the rotating ring 321 again, the locking groove 325 engages with the locking plate 412 and locks the insert post 411. Finally, the threaded connection between the four bolts 323 and the rotating ring 321 is used to make the four bolts 323 abut against the tube body of the micro jacking tube 100, which can restrict the rotating ring 321 and prevent it from rotating. This can seal the micro jacking tube 100 and the micro jacking tube 200. In addition, the slip ring is conveniently installed stably by means of the T-shaped slider.

[0036] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A concrete micro-jacking pipe structure, characterized in that: It includes a micro jacking pipe one (100) and a micro jacking pipe two (200). The body of the micro jacking pipe one (100) is provided with a fixing device one (300) for connecting the micro jacking pipe one (100) and the micro jacking pipe two (200). The body of the micro jacking pipe two (200) is provided with a fixing device two (400) for cooperating with the fixing device one (300) to connect the micro jacking pipe one (100) and the micro jacking pipe two (200). The first fixing device (300) includes a moving component (310) fitted inside the first micro jacking pipe (100) for left and right movement. The right end of the moving component (310) is provided with a fixing component (320) for cooperating with the second fixing device (400) to connect the first micro jacking pipe (100) and the second micro jacking pipe (200). The second fixing device (400) includes a second ring (420) fixedly installed on the tube body of the second micro jacking pipe (200). The left end of the second ring (420) is fixedly installed with a second fixing component (410) for cooperating with the first fixing component (320) to connect the first micro jacking pipe (100) and the second micro jacking pipe (200) to each other.

2. The concrete micro-jacking pipe structure according to claim 1, characterized in that: The micro jacking pipe (100) is provided with a guide rail (101) for the moving component (310) to move left and right. There are four guide rails (101). The left and right ends of the guide rails (101) are fixedly installed with limiting plates (102) to prevent the moving component (310) from detaching from the guide rails (101).

3. A concrete micro-jacking pipe structure according to claim 2, characterized in that: The moving component (310) includes a ring (311) that is fitted onto the micro jacking pipe (100) and slides along the track of the guide rail (101). The ring (311) has a T-slot (312) for the fixed component (320) to rotate.

4. A concrete micro-jacking pipe structure according to claim 3, characterized in that: The fixing component (320) includes a T-shaped ring (322) disposed in a T-shaped groove (312) for rotation. A rotating ring (321) is fixedly installed on the right end of the T-shaped ring (322). A bolt (323) for fixing the rotating ring (321) is threaded onto the ring body of the rotating ring (321).

5. A concrete micro-jacking pipe structure according to claim 4, characterized in that: The rotating ring (321) has a slot (324) at its right end, and there are four slots (324). The bottom of the four slots (324) has a locking groove (325) for cooperating with the fixing component two (410) to connect the micro jacking tube one (100) and the micro jacking tube two (200).

6. A concrete micro-jacking pipe structure according to claim 5, characterized in that: The second fixing component (410) includes a pin (411) fixedly installed at the left end of the second ring (420) for insertion into the slot (324). The left end of the pin (411) is fixedly installed with a locking plate (412) for cooperating with the locking groove (325) to connect the first micro jacking tube (100) and the second micro jacking tube (200).

Citation Information

Patent Citations

  • Resin concrete miniature jacking pipe

    CN212564703U