Steel belt corrugated pipe in-situ updating, cutting and expanding device

Abstract

The utility model provides a steel belt corrugated pipe in-situ updating, cutting and expanding device, which relates to the technical field of pipeline maintenance and comprises a funnel-shaped expanding pipe head, a small port end of the expanding pipe head is provided with a first connecting ring, a large port end of the expanding pipe head is connected with a pipe sleeve, the periphery of the expanding pipe head is provided with a cutting notch close to the small port from the large port, and the first connecting ring is connected with the pipe sleeve. A cutting notch is formed in the pipe expanding head, a cutting blade is installed in the cutting notch and installed on a driving device, a reinforcing plate is further arranged on the periphery of the pipe expanding head, the pipe sleeve is used for being sleeved with a new pipe, and a first connecting disc is installed at the end, away from the pipe expanding head, of the pipe sleeve. The device integrates multiple functions of cutting, pipe expansion and new pipe installation, replacement of old pipes can be completed through one-time operation, and the construction efficiency is greatly improved; compared with the traditional pipe expanding and chambering technology, the mode that the old pipe is firstly cut by the cutting blade and then the pipeline is expanded is adopted, excessive damage and deformation of the old pipe are effectively avoided, and completeness and safety of the pipeline are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline maintenance technical field especially relates to a steel band bellows in situ renewal cutting expansion pipe device. BACKGROUND

[0002] In prior art, for the replacement and reconstruction of pipeline, mainly rely on traditional expansion pipe reaming or rotary cutting broken technology, this technology through using expansion pipe tool directly to prop up old pipe to adapt to the size of new pipe, but this way often leads to the damage and deformation of old pipe, not only affect the appearance, and possibly produce security risks, and steel band bellows cannot be rotary cutting broken, therefore, we propose a kind of steel band bellows in situ renewal cutting expansion pipe device. SUMMARY

[0003] The utility model discloses a kind of steel band bellows in situ renewal cutting expansion pipe devices, including expansion pipe head, the expansion pipe head is funnel-shaped, first connecting ring is equipped in the small port end of expansion pipe head, large port end connects pipe sleeve, cutting slot is opened in the periphery of expansion pipe head from large port to small port, cutting piece is installed in cutting slot, and cutting piece is installed on driving device, the periphery of expansion pipe head is also provided with reinforcing plate, the pipe sleeve is used to sleeve new pipe, first connecting disc is installed in the pipe sleeve end away from expansion pipe head.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of steel band bellows in situ renewal cutting expansion pipe device, including expansion pipe head, the expansion pipe head is funnel-shaped, first connecting ring is equipped in the small port end of expansion pipe head, large port end connects pipe sleeve, cutting slot is opened in the periphery of expansion pipe head from large port to small port, cutting piece is installed in cutting slot, and cutting piece is installed on driving device, the periphery of expansion pipe head is also provided with reinforcing plate, the pipe sleeve is used to sleeve new pipe, first connecting disc is installed in the pipe sleeve end away from expansion pipe head.

[0006] Further, the first connecting ring connects front pull rod.

[0007] Further, the other end of the front pull rod is connected to the top pull pipe drilling machine.

[0008] Further, the first connecting disc is centrally provided with a second connecting ring for connecting rear pull rod.

[0009] Further, the other end of the rear pull rod is provided with rear pressing plate.

[0010] Further, the pipe sleeve is provided with a second connecting disc at the end corresponding to the expansion pipe head, and the installation of the pipe sleeve is completed by bolt fixing the second connecting disc and the large port end of the expansion pipe head.

[0011] Further, the driving device includes a gear box and a motor, and the driving device is installed on a support inside the expansion pipe head.

[0012] Further, the power line of the driving device is connected with the external power source through the wire hole on the first connecting disc.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] 1、The device integrates the multiple functions of cutting, pipe expansion and new pipe installation, and can complete the replacement of old pipes through one operation, greatly improving the construction efficiency.

[0015] 2、Compared with the traditional pipe expansion and reaming technology, the utility model adopts the mode of cutting the old pipe with a cutting blade and then expanding the pipeline, effectively avoiding the problem that the steel belt corrugated pipe cannot be broken and replaced by rotary cutting, avoiding excessive damage and deformation of the old pipe, and ensuring the integrity and safety of the pipeline.

[0016] 3、Through the connection of the front pull rod and the rear pull rod, the top pipe drill and the rear pressing plate, the whole construction process is more simple and easy to operate, the technical requirements for the construction personnel are reduced, the operation end does not need to be directly contacted, the safety hidden danger is reduced, the use of the reinforcing plate increases the sealing property and friction force between the pipe expansion head and the old pipe, ensures the stability and safety of the pipe expansion process, and guarantees accurate cutting and reduces the safety hidden danger in construction. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A use state diagram of the steel belt corrugated pipe in-situ updating cutting and pipe expansion device is provided for the utility model;

[0018] Figure 2 A whole structure schematic view of the steel belt corrugated pipe in-situ updating cutting and pipe expansion device is provided for the utility model;

[0019] Figure 3 A pipe expansion head structure schematic view of the steel belt corrugated pipe in-situ updating cutting and pipe expansion device is provided for the utility model;

[0020] Figure 4 A driving device structure schematic view of the steel belt corrugated pipe in-situ updating cutting and pipe expansion device is provided for the utility model;

[0021] Figure 5 A pipe sleeve perspective view of the steel belt corrugated pipe in-situ updating cutting and pipe expansion device is provided for the utility model.

[0022] Legend: 1, pipe expansion head; 101, support; 2, first connecting ring; 3, pipe sleeve; 31, second connecting disc; 4, cutting notch; 5, cutting blade; 6, driving device; 7, reinforcing plate; 8, first connecting disc; 9, front pull rod; 10, rear pull rod; 11, second connecting ring; 12, rear pressing plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0024] In order to facilitate the understanding of the present application, the present application will be more fully described below with reference to the related description of the present application, and several embodiments of the present application are given. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right", and the like as used herein are for purposes of illustration and description only and are not intended to limit the present application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. The use of the terms "and / or" includes a combination of one or more of the associated listed items. Embodiment 1

[0027] As shown in Figures 1-5 The present application provides a technical solution: a steel belt corrugated pipe in-situ updating cutting and expanding pipe device, which comprises an expanding pipe head 1. The expanding pipe head 1 is funnel-shaped to adapt to the change of the internal space of the pipe. A first connecting ring 2 is arranged at the small port end of the expanding pipe head 1. A pipe sleeve 3 is connected to the large port end of the expanding pipe head 1. A cutting slot 4 is arranged on the periphery of the expanding pipe head 1 from the large port to the small port. A cutting blade 5 is installed in the cutting slot 4. The cutting blade 5 is installed on a driving device 6. The driving device 6 is responsible for driving the cutting blade 5 to rotate to realize the cutting function. A reinforcing plate 7 is arranged on the periphery of the expanding pipe head 1. The pipe sleeve 3 is used to sleeve a new pipe. A first connecting disc 8 is installed at the end of the pipe sleeve 3 away from the expanding pipe head 1.

[0028] It should be noted that the reinforcing plate 7 can increase the strength of the expansion head 1, and at the same time change the contact surface between the expansion head 1 and the old pipe from a circular contact to a line segment contact, so that the positioning is more stable, and the cutting blade will not shake during the cutting process (although the two ends are pulled by the pull rod 9, there will be slight shaking).

[0029] In Example 2, on the basis of Example 1, the embodiment further provides an expansion structure and a connection mode of the device, as shown in Figures 1-5

[0030] The first connecting ring 2 is connected to the front pull rod 9, and the other end of the front pull rod 9 is connected to the top pull pipe drilling machine, which is used to provide the thrust force during the expansion and cutting.

[0031] The first connecting disc 8 is centrally provided with a second connecting ring 11 connected to the rear pull rod 10, and the rear pull rod 10 is connected to the device through the second connecting ring 11 on the first connecting disc 8. The other end of the rear pull rod 10 is provided with a rear pressing plate 12, which is used to provide a reverse supporting force during the expansion process to ensure the stability of the expansion process.

[0032] The pipe sleeve 3 is provided with a second connecting disc 31 corresponding to the end of the expansion head 1. The second connecting disc 31 and the large end port of the expansion head 1 are fixed by bolts to complete the installation of the pipe sleeve 3, and ensure the stable connection between the pipe sleeve 3 and the expansion head 1.

[0033] The driving device 6 includes a gear box and a motor, and is installed on a support 101 inside the expansion head 1. The power line of the driving device 6 is connected to the external power supply through the wire hole on the first connecting disc 8, and provides power for the cutting blade 5 through the wire hole on the first connecting disc 8.

[0034] ​The utility model work flow: when using a kind of steel belt bellows in situ renewal cutting expansion pipe device, first, new pipe is prepared, and is set in pipe sleeve 3, after pressing plate 12 is connected by rear pull rod 10 with the second connecting ring 11 on first connecting disc 8, ensure that after pressing plate 12 can be stably supported in the rear of old pipe, the small port end of expansion pipe head 1 is connected with front pull rod 9 by first connecting ring 2, the other end of front pull rod 9 is connected with top pull pipe drilling machine, the entire device is positioned on the old pipe position needing renewal, ensure that the cutting notch 4 of expansion pipe head 1 is aligned with old pipe, start top pull pipe drilling machine, expansion pipe head 1 is slowly pushed into old pipe by front pull rod 9, until expansion pipe head 1 completely covers the part needing cutting and expanding, start drive device 6, make cutting piece 5 rotate in cutting notch 4, start cutting old pipe, with the cutting of proceeding, top pull pipe drilling machine continues to advance, while the small port end of expansion pipe head 1 gradually props open old pipe, forms new pipe space, and reinforcing plate 7 plays the role of protection old pipe inner wall and increase sealing property in expansion pipe process, when old pipe is completely cut and expanded, new pipe is pushed out from pipe sleeve 3, so that it enters the inside of old pipe that has been propped open, by adjusting the position of top pull pipe drilling machine and after pressing plate 12, ensure that new pipe is correctly installed in place.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An in-situ renewal, cutting and expanding device for steel strip corrugated pipes, characterized by: The invention comprises an expansion head (1), wherein the expansion head (1) is funnel-shaped, a first connecting ring (2) is provided at the small end of the expansion head (1), and a pipe sleeve (3) is connected to the large end. A cutting notch (4) is provided on the periphery of the expansion head (1) from the large end close to the small end. A cutting blade (5) is installed in the cutting notch (4), and the cutting blade (5) is installed on a driving device (6). A reinforcing plate (7) is also provided on the periphery of the expansion head (1). The pipe sleeve (3) is used for sleeve-mounting a new pipe, and a first connecting plate (8) is installed at the end of the pipe sleeve (3) away from the expansion head (1).

2. The in-situ renewal, cutting and expanding device for steel strip corrugated pipes according to claim 1, characterized in that: The first connecting ring (2) is connected to the front pull rod (9).

3. The in-situ renewal, cutting and expanding device for steel strip corrugated pipes according to claim 2, characterized in that: The other end of the front pull rod (9) is connected to the jacking pipe drilling rig.

4. The in-situ renewal, cutting and expanding device for steel strip corrugated pipes according to claim 1, characterized in that: A second connecting ring (11) for connecting to the rear pull rod (10) is provided in the center of the first connecting plate (8).

5. The in-situ renewal, cutting and expanding device for steel strip corrugated pipes according to claim 4, characterized in that: A rear pressure plate (12) is mounted on the other end of the rear pull rod (10).

6. The in-situ renewal, cutting and expanding device for steel strip corrugated pipes according to claim 1, characterized in that: The pipe sleeve (3) is provided with a second connecting plate (31) at the end corresponding to the expansion head (1), and the second connecting plate (31) and the large end of the expansion head (1) are fixed by bolts to complete the installation of the pipe sleeve (3).

7. The in-situ renewal, cutting and expanding device for steel strip corrugated pipes according to claim 1, characterized in that: The driving device (6) comprises a gear box and a motor, and the driving device (6) is mounted on a bracket (101) inside the tube expansion head (1).

8. The in-situ renewal, cutting and expanding device for steel strip corrugated pipes according to claim 7, characterized in that: The power line of the driving device (6) is connected to the external power supply through a wiring hole provided on the first connection plate (8).

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