CN220118075U - Crushing reaming head for non-excavation pipeline replacement - Google Patents

Abstract

The utility model relates to the technical field of pipeline maintenance, and discloses a crushing reaming head for replacing a trenchless pipeline, which comprises a drill pipe joint; the pipe that rises that is connected with the drilling rod joint, dismantle through connection structure between drilling rod joint and the pipe that rises and be connected, connection structure includes the connecting block, the keysets, end stop push rod and locking hole, the connecting block with the tip fixed connection of pipe that rises, another same connecting block of terminal surface fixed connection of keysets, the same locking hole is all offered to the wall of keysets and drilling rod joint, the same thrust push rod of wall all elastic connection of connecting block, the thrust push rod can block into the locking downthehole, when connecting block and keysets joint, insert the movable inslot with the connecting block, the entering locking downthehole completion joint of thrust push rod, the keysets can rotate certain angle around the thrust push rod, the pipeline of several keysets in order to adapt to different crooked degree is installed to the selectivity between drilling rod joint and the pipe that rises, the adaptability is stronger, the practical range is wider, it is simple and efficient when the keysets are dismantled.

Description

Crushing reaming head for non-excavation pipeline replacement

Technical Field

The utility model belongs to the technical field of pipeline maintenance, and particularly relates to a crushing reaming head for replacing a trenchless pipeline.

Background

The prior art discloses a trenchless pipe replacement broken reamer head assembly (CN202210773321. X) comprising a drill pipe joint, a joint sleeve, a broken reamer head and a pipe pulling mechanism; the rotary crushing device also comprises a front hinge joint, a rear hinge joint, a cone pull rod and a rotary crushing mechanism; the drill rod joint is movably connected with one end of the front hinge joint, the other end of the front hinge joint is movably connected with one end of the rear hinge joint, and the other end of the rear hinge joint is movably connected with the rotary joint on the joint sleeve; the cone pull rod is positioned in the joint sleeve and connected with the crushing expansion pipe head; the rotary crushing mechanism is positioned on the outer wall of the crushing expansion pipe head and comprises a rotary wheel expansion cutter;

the prior art mainly sets up a plurality of adapter through between the pipe that rises with guaranteeing structure and rising and not rotating at same axle center, adaptation pipeline's bending, the quantity of adapter is fixed, and the more the adapter quantity, the greater the degree of bending, simultaneously, the more the energy that loses in the rotation process, can not nimble dismouting adapter adjustment quantity in order to adjust according to pipeline bending, has restricted adaptability and flexibility.

The present utility model has been made in view of this.

Disclosure of Invention

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:

a broken reamer head for replacing a non-excavation pipeline comprises a drill rod joint; the expansion pipe is connected with the drill rod joint, the drill rod joint and the expansion pipe are connected through the connection structure in a disassembling mode, the connection structure comprises a connecting block, an adapter plate, a push stopping rod and a locking hole, the connecting block is fixedly connected with the end portion of the expansion pipe, the end face of the adapter plate is fixedly connected with another identical connecting block, the same locking hole is formed in the wall faces of the adapter plate and the drill rod joint, the same push stopping rod is elastically connected with the wall faces of the connecting block, and the push stopping rod can be clamped into the locking hole.

As a preferred embodiment of the utility model, the connecting structure further comprises a movable groove formed in the bottom surface of the adapter plate, the connecting block can be inserted into the movable groove and rotate in the movable groove by a certain angle, and the lower end surface of the drill rod joint is provided with another identical movable groove for inserting the uppermost connecting block.

As a preferred embodiment of the utility model, the connecting blocks form rectangular blocks, the movable grooves are matched with the connecting blocks for use, and the height of the connecting blocks is larger than that of the movable grooves.

As a preferred embodiment of the present utility model, the locking rod is cylindrical, and the locking hole is a round hole matched with the locking rod.

As a preferred implementation mode of the utility model, the connecting structure further comprises a flange, a spring and a limiting ring, wherein the flange is fixedly connected with the push stopping rod, a sliding groove is formed in the wall surface of the connecting block, the push stopping rod and the flange are both in sliding connection with the sliding groove, the push stopping rod is elastically connected with the connecting block through the spring, two ends of the spring are respectively fixedly connected with the push stopping rod and the connecting block, and the limiting ring shields the sliding groove and limits the spring in the sliding groove.

As a preferable implementation mode of the utility model, the spring is annular, the inner circumferential surface of the spring is fixedly connected with the flange, the sliding groove is divided into two sections with different diameters, one section of the sliding groove is equal to the diameter of the thrust rod, and the other section of the sliding groove is equal to the outer diameter of the flange.

As a preferable implementation mode of the utility model, the limiting ring is an annular plate, the limiting ring is locked with the connecting block through bolts, and the inner diameter of the limiting ring is equal to the diameter of the thrust rod.

Compared with the prior art, the utility model has the following beneficial effects:

1. through installing two keysets between drilling rod joint and pipe that rises, two keysets joint each other and two keysets can rotate along X axle and Z axle respectively, realize that drilling rod joint and pipe that rises are not rotating in the heart, adapt to the bending of pipeline, reduce the jamming, when inserting connecting block and keyset joint, with the connecting block in the movable groove, the entering locking hole completion joint of thrust rod, the keyset can rotate certain angle around thrust rod, the optional install several keysets in order to adapt to the pipeline of different crooked degree between drilling rod joint and pipe that rises, the adaptability is stronger, the practical range is wider, it is simple and efficient when dismouting keyset.

2. Through pushing the thrust rod into the sliding tray, the thrust rod extrudes the spring, realizes the elastic connection of thrust rod, in order to be convenient for the thrust rod to get into the locking downthehole, the terminal surface of thrust rod forms bellied sphere, and the spacing ring can restrict the flange in the sliding tray and prevent that the thrust rod from breaking away from in the sliding tray, improves the stability of operation, cylindric thrust rod can ensure that the keysets can rotate angle adjustment around the thrust rod.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

In the drawings:

FIG. 1 is an exploded view of the present utility model;

FIG. 2 is a schematic view of the installation of the present utility model;

FIG. 3 is a schematic diagram of two adapter plate installations according to the present utility model;

FIG. 4 is an assembly view of the thrust rod and the connecting block of the present utility model.

In the figure: 10. a drill pipe joint; 11. expanding the pipe; 20. a connecting block; 21. an adapter plate; 22. a push stop rod; 23. a locking hole; 24. a movable groove; 30. a flange; 31. a spring; 32. and a limiting ring.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model.

A crushing reamer head for trenchless pipe replacement, as shown in figures 1-3, comprises a drill pipe joint 10; the expansion pipe 11 connected with the drill rod joint 10, the drill rod joint 10 and the expansion pipe 11 are connected through a connection structure in a disassembling mode, the connection structure comprises a connection block 20, an adapter plate 21, a thrust rod 22 and a locking hole 23, the connection block 20 is fixedly connected with the end portion of the expansion pipe 11, the end face of the adapter plate 21 is fixedly connected with another identical connection block 20, the same locking hole 23 is formed in the wall faces of the adapter plate 21 and the drill rod joint 10, the same thrust rod 22 is elastically connected in the wall faces of the connection block 20, the thrust rod 22 can be clamped into the locking hole 23, the connection structure further comprises a movable groove 24 formed in the bottom face of the adapter plate 21, the connection block 20 can be inserted into the movable groove 24 and rotated in the movable groove 24 by a certain angle, the lower end face of the drill rod joint 10 is provided with another identical movable groove 24 for inserting the uppermost connection block 20, the connection block 20 forms a rectangular block, the movable groove 24 and the connecting block 20 are mutually matched, the height of the connecting block 20 is larger than that of the movable groove 24, the push stopping rod 22 is in cylindrical installation, the locking hole 23 is a round hole mutually matched with the push stopping rod 22, in the scheme, two adapter plates 21 can be selectively installed between the drill rod joint 10 and the expansion pipe 11, one adapter plate 21 is clamped with the connecting block 20 at the end part of the expansion pipe 11, the upper adapter plate 21 is clamped with the drill rod joint 10, the two adapter plates 21 are mutually clamped and the two adapter plates 21 can rotate along the X axis and the Z axis respectively, the drill rod joint 10 and the expansion pipe 11 are not rotated concentrically, the bending of a pipeline is adapted, clamping stagnation is reduced, when the connecting block 20 is clamped with the adapter plates 21, the connecting block 20 is inserted into the movable groove 24, the clamping of the push stopping rod 22 is completed in the locking hole 23, the adapter plate 21 can rotate around the push stopping rod 22 by a certain angle, the plurality of adapter plates 21 can be selectively installed between the drill rod joint 10 and the expansion pipe 11 to adapt to pipelines with different bending degrees, so that the adaptability is stronger, the practical range is wider, and the assembly and disassembly of the adapter plates 21 are simple, convenient and efficient.

As shown in fig. 4, the connection structure further comprises a flange 30, a spring 31 and a limiting ring 32, the flange 30 is fixedly connected with the push rod 22, the wall surface of the connecting block 20 is provided with a sliding groove, the push rod 22 and the flange 30 are both in sliding connection with the sliding groove, the push rod 22 is elastically connected with the connecting block 20 through the spring 31, two ends of the spring 31 are respectively fixedly connected with the push rod 22 and the connecting block 20, the limiting ring 32 shields the sliding groove and limits the spring 31 in the sliding groove, the spring 31 is annular, the inner circumferential surface of the spring 31 is fixedly connected with the flange 30, the sliding groove is divided into two sections with different diameters, one section of the sliding groove is equal to the push rod 22 in diameter, the other section of the sliding groove is equal to the outer diameter of the flange 30, the limiting ring 32 is an annular plate, the limiting ring 32 is locked with the connecting block 20 through bolts, the inner diameter of the limiting ring 32 is equal to the diameter of the push rod 22, in the scheme, how the push rod 22 is elastically connected with the connecting block 20 is realized, the push rod 22 and the flange 30 is respectively slid in the sliding groove of the wall surface of the connecting block 20, the sliding groove is pushed into the sliding groove 22, the sliding groove 22 is conveniently, the sliding groove is prevented from being pushed into the sliding groove 22, the elastic connection hole 22 is formed by the elastic connection of the connecting block 22, and the sliding ring 22 is prevented from being pushed into the cylindrical groove 22, and the sliding groove is prevented from being separated from the sliding groove 22, and the sliding groove 22.

Working principle: the anti-pushing rod 22 is pushed into the sliding groove, the anti-pushing rod 22 extrudes the spring 31 to realize elastic connection of the anti-pushing rod 22, the end face of the anti-pushing rod 22 forms a convex spherical surface, the stop edge 30 can be limited in the sliding groove by the limiting ring 32 to prevent the anti-pushing rod 22 from being separated from the sliding groove, when the anti-pushing rod 22 is opposite to the locking hole 23, the spring 31 pushes the straight pushing rod 22 to enter the locking hole 23 to complete installation of the adapter plate 21 and the connecting block 20, the adapter plate 21 can rotate around the anti-pushing rod 22 for a certain angle, and a plurality of adapter plates 21 can be selectively installed between the drill pipe joint 10 and the expansion pipe 11 to adapt to pipelines with different bending degrees.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (7)

1. A crushing reaming head for trenchless pipe replacement comprising a drill pipe joint (10); the expansion pipe (11) connected with the drill pipe joint (10), and is characterized in that the drill pipe joint (10) is connected with the expansion pipe (11) through connection structure disassembly, the connection structure comprises a connection block (20), an adapter plate (21), a thrust rod (22) and a locking hole (23), the connection block (20) is fixedly connected with the end part of the expansion pipe (11), the end face of the adapter plate (21) is fixedly connected with another identical connection block (20), the same locking hole (23) is formed in the wall surfaces of the adapter plate (21) and the drill pipe joint (10), the wall surfaces of the connection block (20) are elastically connected with the same thrust rod (22), and the thrust rod (22) can be clamped into the locking hole (23).

2. The crushing reamer head for trenchless pipe replacement of claim 1 wherein the connection structure further comprises a movable groove (24) formed in the bottom surface of the adapter plate (21), the connection block (20) being insertable into the movable groove (24) and rotatable within the movable groove (24) by a certain angle, the lower end surface of the drill pipe joint (10) being formed with another identical movable groove (24) for inserting the uppermost connection block (20).

3. The crushing reamer head for trenchless pipe replacement of claim 1 wherein the connection blocks (20) form rectangular blocks, the movable slots (24) are used in cooperation with the connection blocks (20), and the height of the connection blocks (20) is greater than the height of the movable slots (24).

4. The crushing reamer head for replacing trenchless pipeline according to claim 1, wherein the stopper rod (22) is cylindrical, and the locking hole (23) is a circular hole which is mutually matched with the stopper rod (22).

5. The broken reaming head for trenchless pipe replacement of claim 1, wherein the connecting structure further comprises a flange (30), a spring (31) and a limiting ring (32), the flange (30) is fixedly connected with the thrust rod (22), a sliding groove is formed in the wall surface of the connecting block (20), the thrust rod (22) and the flange (30) are both in sliding connection with the sliding groove, the thrust rod (22) is elastically connected with the connecting block (20) through the spring (31), two ends of the spring (31) are respectively fixedly connected with the thrust rod (22) and the connecting block (20), and the limiting ring (32) shields the sliding groove and limits the spring (31) in the sliding groove.

6. The broken reamer head for replacing trenchless pipe of claim 5 wherein the spring (31) is ring-shaped, the inner circumferential surface of the spring (31) is fixedly connected with the flange (30), the sliding groove is divided into two sections with different diameters, one section has the same diameter as the stopper rod (22), and the other section has the same outer diameter as the flange (30).

7. The crushing reamer head for replacing a trenchless pipeline according to claim 5, wherein the limiting ring (32) is an annular plate, the limiting ring (32) is locked with the connecting block (20) by bolts, and the inner diameter of the limiting ring (32) is equal to the diameter of the thrust rod (22).