CN219052674U - Rotary pipe expanding device for non-excavation pipeline - Google Patents

Abstract

The application relates to a rotatory expander device of non-excavation pipeline, it relates to the technical field of pipeline construction, including barrel, expander and connecting rod, the expander is located the one end of barrel, the connecting rod with barrel fixed connection, the connecting rod with the expander rotates to be connected, the connecting rod is kept away from the one end of expander and draw-bar fixed connection of traction mechanism, the expander is kept away from the one end of barrel is equipped with the broken subassembly that is used for destroying the pipeline. The pipe expanding device has the effects of continuously expanding the pipe and improving the pipe expanding efficiency.

Description

Rotary pipe expanding device for non-excavation pipeline

Technical Field

The application relates to the technical field of pipeline construction, in particular to a non-excavation pipeline rotary pipe expanding device.

Background

The buried pipelines have certain service lives, and the buried pipelines need to be replaced after being used for a certain period of time. For municipal pipeline replacement, excavation is generally used for pipeline replacement. However, when limited factors such as buildings, traffic and water areas exist on the pipeline, the pipeline cannot be excavated and replaced, the pipeline trenchless pipeline replacement process is relatively simple, and the pipeline trenchless pipeline replacement process is gradually favored by application research and engineering construction units. The non-excavation pipeline replacing technology includes pipe expanding process, pipe eating process, pipeline eliminating process, etc.

A pipe expanding device for a pipeline in the related art comprises supporting rings, wherein a bearing block which is horizontally arranged is fixedly connected between the inner walls of the two supporting rings, and a pipe expanding piece for expanding the pipeline is arranged on the bearing block. The pipe expanding piece comprises a thread cylinder, a threaded rod and arc-shaped pieces, wherein a motor for driving the threaded rod is arranged in the bearing block, the threaded rod is connected to the upper surface and the lower surface of the bearing block in a rotating mode, the thread cylinder is connected to the side face of the threaded rod in a threaded mode, the arc-shaped pieces are fixed to one face, facing the inner wall of the pipeline, of the thread cylinder, and the arc-shaped faces of the arc-shaped pieces are opposite to the inner wall of the pipeline. The other end of the pipeline is pulled to the supporting ring through the traction mechanism, and the pipe expanding device moves along the length direction of the pipeline. The motor drives the screw thread section of thick bamboo to rotate for the arc piece moves towards the direction that is close to the pipeline inner wall, makes the arc piece support tight pipeline inner wall, enlarges the inner space of pipeline.

For the related art, the inventor finds that when the arc-shaped sheet moves towards the direction of the inner wall of the pipeline, a large resistance is caused to the whole pipe expanding device moving along the pipeline, so that the pipeline is difficult to expand continuously, and the installation work progress of a new pipeline is influenced.

Disclosure of Invention

In order to solve the problem that a pipe expanding piece is difficult to expand a pipeline continuously at the same time, the application provides a non-excavation pipeline rotary pipe expanding device.

The application provides a rotatory expander device of non-excavation pipeline adopts following technical scheme:

the utility model provides a rotatory expander device of non-excavation pipeline, includes barrel, expander and connecting rod, the expander is located the one end of barrel, the connecting rod with barrel fixed connection, the connecting rod with the expander rotates to be connected, the connecting rod is kept away from the one end of expander and traction mechanism's traction lever fixed connection, the expander is kept away from the one end of barrel is equipped with the broken subassembly that is used for destroying the pipeline, broken subassembly includes roof, sleeve pipe and rotatory tool bit, the sleeve pipe cover is established on the connecting rod, sheathed tube one end with expander fixed connection, the sheathed tube other end with roof fixed connection, the roof with the connecting rod rotates to be connected, rotatory tool bit is located the roof is kept away from one side of expander, be equipped with in the barrel and be used for the drive the pivoted drive assembly of expander.

Through adopting above-mentioned technical scheme, drive assembly drives the expander and rotates, and the expander passes through the sleeve pipe and drives the roof rotation, and rotatory tool bit follows and rotates for rotatory tool bit destroys the soil body around the pipeline. The connecting rod moves along the length direction of the pipeline under the traction force of the traction mechanism, and the connecting rod drives the pipe expander to move. After the damaged soil body is extruded by the pipe expander, the inner space of the pipeline is enlarged, and a new pipeline is formed. The soil body in the pipeline is damaged, so that the lateral pressure of the soil body to the pipe expander is reduced, the resistance applied to the pipe expander in the moving process is reduced, the pipe expander can continuously expand the pipeline under the traction of the traction mechanism, and the pipe expanding efficiency is improved.

Optionally, the drive assembly includes the driving piece, the driving piece with barrel inner wall fixed connection, the output shaft coaxial fixed with of driving piece has the gear, be equipped with the rack on the expander inner wall, the gear with the rack meshes mutually.

By adopting the technical scheme, the driving piece is started, the output shaft of the driving piece drives the gear to rotate, and the gear is meshed with the rack so as to drive the pipe expander to rotate. The pipe expander drives the top plate to rotate through the sleeve pipe, so that the rotary cutter head rotates along with the top plate, and the rotary cutter head damages soil around the pipeline.

Optionally, the roof is kept away from one side rotation of rotatory tool bit is connected with the supporting shoe, just the supporting shoe is followed roof circumference evenly sets up, the supporting shoe is kept away from the one end rotation of roof is connected with the connecting rod, the slip is provided with the locating plate on the sleeve pipe, the connecting rod is kept away from the one end of supporting shoe with the locating plate rotates to be connected, the supporting shoe is kept away from the one end of connecting rod is equipped with the blade, be equipped with the adjusting part of adjusting blade angle on the roof.

Through adopting above-mentioned technical scheme, along sleeve pipe length direction slip locating plate, the locating plate slides and drives the connecting rod and remove, and the connecting rod removes and drives the supporting shoe and rotate, and the supporting shoe rotates and drives the blade and rotate, and the blade rotates and destroys the pipeline soil body. The staff can adjust the angle of blade through sliding the locating plate according to the pipe diameter that the pipeline was enlarged to the degree that the control blade destroyed to the pipeline soil body, thereby the expander of being convenient for enlarges the pipeline.

Optionally, be equipped with the fixed block on the blade, set up fixed slot and logical groove that is linked together on the supporting shoe, the fixed block inserts and locates in the fixed slot, the fixed block lateral wall with fixed slot cell wall butt, the blade both sides with logical groove cell wall butt, the fixed block with the supporting shoe passes through first bolt fixed connection.

Through adopting above-mentioned technical scheme, fixed block and fixed slot mutually support, and the blade mutually support with logical groove for on the supporting shoe was inserted to the blade, so that install and dismantle between blade and the supporting shoe, appear when the condition that the damage appears to the blade, the staff of being convenient for changes the blade. The fixing block is fixedly connected with the supporting block through the first bolt, so that the stability of connection between the blade and the supporting block is improved, and the blade is not easy to separate from the supporting block during working.

Optionally, the adjusting part includes screw rod and nut, the one end and the roof of screw rod keep away from one side fixed connection of rotatory tool bit, the screw rod with nut threaded connection and locating plate both sides all with the nut butt.

Through adopting above-mentioned technical scheme, through the rotation nut to adjust the distance between locating plate to the top, the staff of being convenient for confirms the angle of blade through the nut position. When the positioning is moved to a proper position, the nut is tightly abutted against the positioning plate by rotating the nut, so that the positioning plate is difficult to move, the angle of the blade is not easy to change, and the stability of the blade in working is improved.

Optionally, the outer circumferential surface of the expander is in a tapered arrangement from one end close to the cylinder to one end far from the cylinder.

By adopting the technical scheme, the peripheral surface of the pipe expander is tapered, so that the end part of the pipe expander has smaller stress area and larger pressure intensity, and is convenient to penetrate into the soil body of the pipeline. The driving piece is started, and the driving piece drives the pipe expander to rotate, so that the resistance of the pipe expander to soil bodies from the pipeline in the rotating process is reduced, the pipe expander is convenient to squeeze the soil bodies in the rotating process, and the pipeline is enlarged.

Optionally, a guide block is arranged on the outer circumferential surface of the pipe expander, and the guide block is arranged along the outer circumferential surface of the pipe expander in a spiral array.

By adopting the technical scheme, the guide block plays a role in guiding the damaged soil body, so that the broken soil body is diffused to the peripheral surface of the pipe expander along the guide block after contacting the pipe expander, the condition that the broken soil body is deposited at the front end of the pipe expander is reduced, and the resistance of the pipe expander in the moving process is further reduced.

Optionally, the barrel is kept away from the one end of expander is equipped with the connecting block, be equipped with first armful ring on the connecting block, first armful ring has the second to armful the ring through second bolted connection.

Through adopting above-mentioned technical scheme, the one end that the expander was kept away from to the barrel is used for supplying the tubular product to place, and first armful ring and second armful ring all with tubular product global butt, make first armful ring and second armful ring support the tubular product tightly through the second bolt for the tubular product follows the barrel and enters into the completion and lays the work in the new pipeline.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the crushing assembly, the soil in the pipeline is damaged by the rotary cutter head, the lateral pressure of the soil on the pipe expander is reduced, and the resistance born by the pipe expander in the moving process is reduced, so that the pipe expander can continuously expand the pipeline under the traction of the traction mechanism, and the pipe expanding efficiency is improved;

2. through setting up the blade at the roof, can be according to the pipe diameter size of required expander, through the rotation nut to adjust the distance between locating plate and the roof, thereby adjust the angle of blade, with the degree that the control blade destroyed to the pipeline soil body, thereby be convenient for expand the pipe expander and expand the pipeline.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a rotary pipe expanding device for a trenchless pipe according to an embodiment of the present application.

Fig. 2 is a schematic working diagram of a non-excavation pipeline rotary pipe expanding device according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a driving assembly according to an embodiment of the present application.

FIG. 4 is a schematic diagram of a crushing assembly mechanism according to an embodiment of the present application.

Fig. 5 is an enlarged view of the structure at a in fig. 4.

Reference numerals illustrate: 1. a cylinder; 11. a pipe expander; 12. a connecting rod; 13. a guide block; 14. a connecting block; 15. the first embracing ring; 16. the second embracing ring; 17. a second bolt; 18. a pipe; 2. old pipes; 21. a new pipeline; 22. a traction mechanism; 23. a traction rod; 3. a crushing assembly; 31. a top plate; 32. a sleeve; 33. rotating the cutter head; 34. a support block; 341. a fixing groove; 342. a through groove; 343. a first bolt; 35. a connecting rod; 36. a positioning plate; 37. a blade; 371. a fixed block; 4. a drive assembly; 41. a driving member; 42. an output shaft; 43. a gear; 44. a rack; 5. an adjustment assembly; 51. a screw; 52. and (3) a nut.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses a non-excavation pipeline rotation pipe expanding device. Referring to fig. 1 and 2, a non-excavation pipe rotating pipe expanding device comprises a barrel 1, a pipe expander 11, a crushing assembly 3 and a traction mechanism 22, wherein the barrel 1 is positioned at one end of an old pipe 2, the traction mechanism 22 is positioned at one end of the old pipe 2 far away from the barrel 1, the traction mechanism 22 is used for traction of the barrel 1 along the length direction of the old pipe 2, one end of the barrel 1 close to the traction mechanism 22 is rotationally connected with the pipe expander 11, one end of the pipe expander 11 far away from the barrel 1 is provided with the crushing assembly 3, the crushing assembly 3 is used for destroying the soil body of the old pipe 2 so as to reduce the resistance of the pipe expander 11 to the soil body in the moving process, and the pipe expander 11 continuously extrudes the crushed soil body in the moving process, so that the old pipe 2 is expanded into a new pipe 21.

Referring to fig. 3, a connecting rod 12 is fixedly connected to one end of the cylinder 1, which is close to the expander 11, the connecting rod 12 is rotatably connected to the expander 11, the connecting rod 12 passes through one end of the expander 11 and is fixedly connected to a traction rod 23 of a traction mechanism 22, and a driving assembly 4 for driving the expander 11 to rotate is arranged in the cylinder 1. The driving assembly 4 comprises a driving member 41, in this embodiment, the driving member 41 is a motor, the driving member 41 is fixedly arranged in the cylinder 1, a gear 43 is coaxially fixed at one end of an output shaft 42 of the driving member 41 penetrating out of the cylinder 1, and a rack 44 meshed with the gear 43 is fixedly arranged on the inner circumferential surface of the expander 11. The driving member 41 is activated, and the output shaft 42 of the driving member 41 drives the gear 43 to rotate, thereby rotating the expander 11.

Referring to fig. 1, in order to reduce the resistance to the expander 11 in the old pipe 2, the outer peripheral surface of the expander 11 is tapered from the end near the cylinder 1 to the end far from the cylinder 1. And the outer circumferential surface of the expander 11 is provided with guide blocks 13, and the guide blocks 13 are arranged in a spiral array along the outer circumferential surface of the expander 11. The guide block 13 plays a role in guiding the soil body in the old pipeline 2, so that the soil body is diffused to the peripheral surface of the expander 11 along the guide block 13 after contacting with the expander 11, the condition that broken soil body is deposited at the front end of the expander 11 is reduced, and the resistance of the expander 11 in the moving process is further reduced.

Referring to fig. 1, a connecting block 14 is fixedly connected to one end of the cylinder 1 far away from the expander 11, a first holding ring 15 is fixedly connected to the connecting block 14, and a second holding ring 16 is connected to the first holding ring 15 through a second bolt 17. One end of the cylinder 1, which is far away from the expander 11, is used for placing a pipe 18, the first holding ring 15 and the second holding ring 16 are sleeved on the peripheral surface of the pipe 18, and the second bolt 17 is screwed to enable the first holding ring 15 and the second holding ring 16 to tightly prop against the peripheral surface of the pipe 18, so that the pipe 18 is fixedly connected with the cylinder 1. So that the pipe 18 enters the new pipeline 21 along with the cylinder 1 to finish laying work, and the efficiency of pipe 18 installation is improved.

Referring to fig. 3 and 4, the crushing assembly 3 includes a top plate 31, a sleeve 32 and a rotary cutter 33, the sleeve 32 is sleeved on the connecting rod 12 extending out of the expander 11, the top plate 31 is rotatably connected with the connecting rod 12, one end of the sleeve 32 is fixedly connected with the expander 11, one end of the sleeve 32 away from the expander 11 is fixedly connected with the top plate 31, and the rotary cutter 33 is fixedly arranged at one end of the top plate 31 away from the sleeve 32. The driving piece 41 drives the expander 11 to rotate, and the sleeve 32 drives the top plate 31 to drive the rotary cutter head 33 to rotate, so that the rotary cutter head 33 damages soil around the pipe, the lateral pressure of the soil to the expander 11 is reduced, the resistance to the expander 11 in the moving process is reduced, and the expander 11 can continuously expand the pipe under the traction of the traction mechanism 22, and the pipe expanding efficiency is improved.

Referring to fig. 4 and 5, a positioning plate 36 is slidingly connected to the sleeve 32, one side of the top plate 31 far away from the rotary cutter head 33 is rotationally connected with four supporting blocks 34, in this embodiment, the four supporting blocks 34 are uniformly arranged along the circumferential direction of the top plate 31, one end of the supporting block 34 far away from the top plate 31 is rotationally connected with a connecting rod 35, and one end of the connecting rod 35 far away from the supporting block 34 is rotationally connected with the positioning plate 36. The blade 37 is inserted to the one end that the supporting shoe 34 kept away from connecting rod 35, and the one point that blade 37 is close to supporting shoe 34 fixedly connected with fixed block 371 has offered fixed slot 341 and the logical groove 342 that is linked together on the supporting shoe 34, and fixed block 371 inserts and establishes in fixed slot 341, and fixed block 371 lateral wall and fixed slot 341 cell wall butt, blade 37 both sides and logical groove 342 cell wall butt, fixed block 371 with supporting shoe 34 passes through first bolt 343 fixed connection. The top plate 31 is also provided with an adjusting component 5 for adjusting the angle of the blade 37.

The staff can drive the connecting rod 35 to move through the sliding locating plate 36 according to the pipe diameter required to be enlarged of the new pipeline 21, the connecting rod 35 moves to drive the supporting block 34 to rotate, and the supporting block 34 rotates to drive the blade 37 to rotate to adjust the angle of the blade 37 so as to control the damage degree of the blade 37 to the pipeline soil body, and therefore the pipeline expander 11 can expand the pipeline conveniently. The blade 37 is inserted on the supporting block 34, so that a worker can conveniently replace the blade 37, the blade 37 and the supporting block 34 are fixedly connected through the first bolt 343, the stability of connection between the blade 37 and the supporting block 34 is improved, and the blade 37 is not easy to separate from the supporting block 34 during working.

Referring to fig. 4, the adjusting assembly 5 includes a screw rod 51 and nuts 52, one end of the screw rod 51 is fixedly connected with one side of the top plate 31 away from the rotary cutter head 33, one end of the screw rod 51 away from the top plate 31 passes through the positioning plate 36, each screw rod 51 is in threaded connection with two nuts 52, and the two nuts 52 are respectively located on two sides of the positioning plate 36. When the worker moves the positioning to a proper position to determine the angle of the blade 37, the two nuts 52 are rotated, so that the two nuts 52 are abutted against the two sides of the positioning plate 36, the positioning plate 36 is not easy to move, the angle of the blade 37 is not easy to change, and the stability of the blade 37 during working is improved.

The implementation principle of the non-excavation pipeline rotary pipe expanding device provided by the embodiment of the application is as follows: firstly, before expanding, the pipe 18 is inserted into the cylinder 1, and the cylinder 1 is locked by the first holding ring 15 and the second holding ring 16. The worker adjusts the position of the positioning plate 36 according to the pipe diameter of the new pipe 21 after pipe expansion to determine the angle of the blade 37. And then the driving member 41 is activated to rotate the expander 11. Finally, the traction mechanism 22 is started, so that the traction rod 23 drives the cylinder body 1 to move along the length direction of the old pipeline 2, and the expander 11 expands the old pipeline 2 into a new pipeline 21 in the moving process, so that the pipe 18 is laid into the expanded new pipeline 21 along with the cylinder body 1.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a rotatory expander device of non-excavation pipeline which characterized in that: including barrel (1), expander (11) and connecting rod (12), expander (11) are located the one end of barrel (1), connecting rod (12) with barrel (1) fixed connection, connecting rod (12) with expander (11) rotate to be connected, connecting rod (12) keep away from the one end of expander (11) with traction mechanism (22) traction lever (23) fixed connection, expander (11) keep away from the one end of barrel (1) is equipped with crushing set (3) that are used for destroying old pipeline (2), crushing set (3) include roof (31), sleeve pipe (32) and rotatory tool bit (33), sleeve pipe (32) cover is established on connecting rod (12), the one end of sleeve pipe (32) with expander (11) fixed connection, the other end of sleeve pipe (32) with roof (31) fixed connection, roof (31) with connecting rod (12) rotate to be connected, rotatory tool bit (33) are located expander (1) are kept away from in barrel (11) drive set up in (4) roof (11).

2. The trenchless pipe rotating pipe expanding device of claim 1, wherein: the driving assembly (4) comprises a driving piece (41), the driving piece (41) is fixedly connected with the inner wall of the cylinder body (1), a gear (43) is coaxially fixed on an output shaft (42) of the driving piece (41), a rack (44) is arranged on the inner wall of the pipe expander (11), and the gear (43) is meshed with the rack (44).

3. The trenchless pipe rotating pipe expanding device of claim 1, wherein: the utility model discloses a rotary cutter head, including rotatory tool bit (33) and roof, roof (31) are kept away from one side rotation of rotatory tool bit (33) is connected with supporting shoe (34), just supporting shoe (34) are followed roof (31) circumference evenly sets up, supporting shoe (34) are kept away from one end rotation of roof (31) is connected with connecting rod (35), slide on sleeve pipe (32) and be provided with locating plate (36), connecting rod (35) are kept away from one end of supporting shoe (34) with locating plate (36) rotate and are connected, supporting shoe (34) are kept away from one end of connecting rod (12) is equipped with blade (37), be equipped with on roof (31) adjusting part (5) of adjusting blade (37) angle.

4. A trenchless pipe rotating pipe expanding apparatus as defined in claim 3 wherein: the utility model discloses a blade, including blade (37), fixed block (371) are equipped with fixed slot (341) and logical groove (342) that are linked together on supporting shoe (34), fixed block (371) are inserted and are located in fixed slot (341), fixed block (371) lateral wall with fixed slot (341) cell wall butt, blade (37) both sides with logical groove (342) cell wall butt, fixed block (371) with supporting shoe (34) are through first bolt (343) fixed connection.

5. A trenchless pipe rotating pipe expanding apparatus as defined in claim 3 wherein: the adjusting component (5) comprises a screw rod (51) and a nut (52), one end of the screw rod (51) is fixedly connected with one side, away from the rotary tool bit (33), of the top plate (31), the screw rod (51) is in threaded connection with the nut (52), and two sides of the positioning plate (36) are in butt joint with the nut (52).

6. The trenchless pipe rotating pipe expanding device of claim 1, wherein: the outer circumferential surface of the expander (11) is in a tapered arrangement from one end close to the cylinder (1) to one end far away from the cylinder (1).

7. The trenchless pipeline rotary pipe expanding device of claim 6, wherein: the outer circumferential surface of the pipe expander (11) is provided with guide blocks (13), and the guide blocks (13) are spirally arranged along the outer circumferential surface array of the pipe expander (11).

8. The trenchless pipe rotating pipe expanding device of claim 1, wherein: one end of the cylinder body (1) far away from the expander (11) is provided with a connecting block (14), a first holding ring (15) is arranged on the connecting block (14), and the first holding ring (15) is connected with a second holding ring (16) through a second bolt (17).

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