Self-adapting dredging device for trenchless repair of pipelines

Abstract

The utility model relates to a kind of self-adapting dredging device for pipeline trenchless repair, including trolley frame and dredging mechanism, its technical key points are: trolley frame bottom two sides are equipped with self-driving lower walking wheel group, upper two sides are equipped with the height-adjustable upper centralizing wheel group, trolley frame upper surface is fixed with dredging motor speed reducer, the output shaft end portion of dredging motor speed reducer is fixed with support disc, dredging mechanism includes fixed in the center of support disc horizontal telescopic cylinder, the connecting seat of being equipped with the cylinder rod end of horizontal telescopic cylinder, two dredging swing arms being symmetrically arranged in the both sides of horizontal telescopic cylinder and being hinged with support disc, dredging brush and crushing blade being equipped with the both sides of dredging swing arm free end, push-pull rod being hinged between connecting seat and dredging swing arm, the dredging brush on two dredging swing arms is arranged oppositely, the crushing blade on two dredging swing arms is arranged oppositely, the tip of crushing blade is arranged back to support disc. The device has good dredging effect and wide application range.

Description

Technical Field

[0001] This utility model relates to the technical field of drainage pipeline dredging devices, specifically to an adaptive dredging device for trenchless pipeline repair. Background Technology

[0002] Due to environmental constraints such as buildings, gas pipelines, and power lines, municipal drainage pipes cannot be excavated and dredged when blockages occur. Currently, trenchless dredging devices are generally used to dredge the pipes.

[0003] For example, CN 112211264 A discloses a self-cleaning sewage pipe based on fluid mechanics, which includes an outer sewage pipe for burial underground, a sewage separation mechanism for sewage separation, and an adaptive sludge removal mechanism for adaptively cleaning sewage sediment. The sewage separation mechanism is located inside the outer sewage pipe, and the adaptive sludge removal mechanism is located on the sewage separation mechanism. The adaptive sludge removal mechanism solves the problem of easy sedimentation at the bottom of sewage pipes and the accumulation of sediment that can easily cause blockage inside the pipe. However, the following problem still exists: the adaptive sludge removal mechanism relies on a dual-pipe design and is not suitable for existing ordinary single-pipe drainage and sewage systems. Utility Model Content

[0004] The purpose of this invention is to provide an adaptive dredging device for trenchless pipeline repair that has a reasonable structure, reliable operation, good dredging effect, and wide applicability, which solves the above problems.

[0005] The technical solution of this utility model is:

[0006] An adaptive dredging device for trenchless pipeline repair includes a trolley frame and a dredging mechanism. The key technical features are: the trolley frame has self-driven lower traveling wheels on both sides of its bottom and adjustable upper centering wheels on both sides of its upper part; a dredging motor reducer is fixed to the upper surface of the trolley frame; a support plate is fixed to the output shaft end of the dredging motor reducer; the dredging mechanism includes a horizontal telescopic cylinder fixed to the center of the support plate, a connecting seat at the end of the cylinder rod of the horizontal telescopic cylinder, two dredging swing arms symmetrically arranged on both sides of the horizontal telescopic cylinder and hinged to the support plate, dredging brushes and breaking blades on both sides of the free ends of the dredging swing arms, and a push-pull rod hinged between the connecting seat and the dredging swing arms; the dredging brushes on the two dredging swing arms are arranged back-to-back, and the breaking blades on the two dredging swing arms are arranged opposite each other, with the tips of the breaking blades facing away from the support plate.

[0007] The aforementioned adaptive dredging device for trenchless pipeline repair has an elastic tension line connecting the two dredging arms to facilitate resetting.

[0008] The aforementioned adaptive dredging device for trenchless pipeline repair uses a steel brush as the dredging brush.

[0009] The aforementioned adaptive dredging device for trenchless pipeline repair has two symmetrical hinge holes on the connecting seat, and connecting ears are symmetrically fixed on opposite sides of the dredging swing arm. The push-pull rod is hinged between the hinge hole and the corresponding connecting ear.

[0010] The aforementioned adaptive dredging device for trenchless pipeline repair has side uprights on the left and right sides of the upper part of the trolley frame, and liftable support plates at the front and rear ends of the side uprights. The liftable support plates have longitudinal elongated holes that are connected to the side uprights by bolt pairs. The upper straightening wheel assembly includes four upper straightening wheels, which are fixed to the upper end of the liftable support plates.

[0011] The aforementioned adaptive dredging device for trenchless pipeline repair includes a driven wheel set located at the front of the bottom of the trolley frame and an active wheel set located at the rear of the bottom of the trolley frame. The axle of the active wheel set is connected to a drive motor.

[0012] The beneficial effects of this utility model are:

[0013] During operation, the trolley frame moves smoothly through the pipeline using self-driven lower traveling wheels and upper centering wheels. The cylinder rod of the horizontal telescopic cylinder extends outwards and, through a connecting seat and push-pull rod, pushes the free ends of the two dredging arms to swing back and forth at a certain angle. This brings the crushing blades and dredging brushes close to the inner wall of the pipeline. Driven by the dredging motor reducer, they rotate. The crushing blades break up the accumulated material in the pipeline, and the dredging brushes remove the deposits adhering to the inner wall of the pipeline, achieving the purpose of dredging. Compared with existing technologies, this invention has a wider range of applications and better dredging effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 yes Figure 1 The right view;

[0016] Figure 3 This is a diagram showing the working state of this utility model.

[0017] In the diagram: 1. Pipe to be cleaned, 2. Crushing blade, 3. Dredging brush, 4. Dredging swing arm, 5. Support plate, 6. Output shaft, 7. Upper straightening wheel set, 8. Liftable support plate, 9. Side plate, 10. Longitudinal slot, 11. Trolley frame, 12. Self-driven lower traveling wheel set, 13. Horizontal telescopic cylinder, 14. Connecting seat, 15. Push-pull rod, 16. Elastic tension line, 17. Drive motor, 18. Dredging motor reducer. Detailed Implementation

[0018] The present invention will be described in detail with reference to the accompanying drawings.

[0019] like Figures 1-3 As shown, the adaptive dredging device for trenchless pipeline repair includes a trolley frame 11 and a dredging mechanism.

[0020] The trolley frame 11 has self-driven lower traveling wheel sets 12 on both sides of its bottom and adjustable upper straightening wheel sets 7 on both sides of its upper part. In this embodiment, the trolley frame 11 has side upright plates 9 on its upper left and right sides, and adjustable support plates 8 at its front and rear ends. The adjustable support plates 8 have longitudinal elongated holes 10 that are connected to the side upright plates 9 by bolt pairs. The upper straightening wheel sets 7 include four upper straightening wheels, which are fixed to the upper ends of the adjustable support plates 8. The self-driven lower traveling wheel sets 12 include a driven wheel set located at the front of the bottom of the trolley frame 11 and a driven wheel set located at the rear of the bottom of the trolley frame 11. The axle of the driven wheel of the driven wheel set is connected to the drive motor 17.

[0021] A dredging motor reducer 18 is fixed to the upper surface of the trolley frame 11, and a support plate 5 is fixed to the end of the output shaft 6 of the dredging motor reducer 18. The dredging mechanism includes a horizontal telescopic cylinder 13 fixed to the center of the support plate 5, a connecting seat 14 located at the end of the cylinder rod of the horizontal telescopic cylinder 13, two dredging swing arms 4 symmetrically arranged on both sides of the horizontal telescopic cylinder 13 and hinged to the support plate 5, dredging brushes 3 and crushing blades 2 located on both sides of the free end of the dredging swing arms 4, and a push-pull rod 15 hinged between the connecting seat 14 and the dredging swing arms 4. The dredging brushes 3 on the two dredging swing arms 4 are arranged back to back, and the crushing blades 2 on the two dredging swing arms 4 are arranged opposite each other, with the tips of the crushing blades 2 facing away from the support plate 5.

[0022] In this embodiment, the sludge-clearing brush 3 is a steel brush. An elastic tension cable 16 connects the two sludge-clearing swing arms 4 to facilitate resetting. Two hinge holes are symmetrically provided on the connecting seat 14, and connecting ears are symmetrically fixed on opposite sides of the sludge-clearing swing arms 4. The push-pull rod 15 is hinged between the hinge hole and the corresponding connecting ear.

[0023] Working principle:

[0024] 1. Adjust the height of the liftable support plate 8 according to the inner diameter of the pipe 1 to be cleaned, so as to adjust the height of the upper straightening wheel set 7, so that the self-driven lower traveling wheel set 12 and the upper straightening wheel set 7 are in contact with the inner wall of the pipe, and avoid the vehicle body from deviating during the movement of the trolley frame 11.

[0025] 2. A camera can be carried on the trolley frame 11. When it reaches the blockage in the pipeline, the horizontal telescopic cylinder 13 is activated. The cylinder rod of the horizontal telescopic cylinder 13 extends outward and pushes the free ends of the two dredging swing arms 4 to swing back and forth at a certain angle through the connecting seat 14 and the push-pull rod 15, so that they are in an open state.

[0026] 3. Start the dredging motor reducer 18, which drives the support plate 5, horizontal telescopic cylinder 13 and two dredging swing arms 4 to rotate synchronously. The two crushing blades 2 crush the accumulated material in the pipe, and the two dredging brushes 3 brush away the sediment adhering to the inner wall of the pipe, thereby achieving the purpose of dredging.

[0027] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this utility model.

Claims

1. An adaptive dredging device for trenchless pipeline repair, comprising a trolley frame and a dredging mechanism, characterized in that: The trolley frame has self-driven lower walking wheel sets on both sides of its bottom and adjustable upper straightening wheel sets on both sides of its upper part. A dredging motor reducer is fixed on the upper surface of the trolley frame. A support plate is fixed to the output shaft end of the dredging motor reducer. The dredging mechanism includes a horizontal telescopic cylinder fixed to the center of the support plate, a connecting seat at the end of the cylinder rod of the horizontal telescopic cylinder, two dredging swing arms symmetrically arranged on both sides of the horizontal telescopic cylinder and hinged to the support plate, dredging brushes and crushing blades on both sides of the free end of the dredging swing arms, and a push-pull rod hinged between the connecting seat and the dredging swing arms. The dredging brushes on the two dredging swing arms are arranged back to back, and the crushing blades on the two dredging swing arms are arranged opposite each other, with the tips of the crushing blades facing away from the support plate.

2. The adaptive dredging device for trenchless pipeline repair according to claim 1, characterized in that: An elastic tension line connects the two dredging arms.

3. The adaptive dredging device for trenchless pipeline repair according to claim 1, characterized in that: The dredging brush is a steel brush.

4. The adaptive dredging device for trenchless pipeline repair according to claim 1, characterized in that: The connecting seat is symmetrically provided with two hinge holes, and the opposite sides of the dredging swing arm are symmetrically fixed with connecting ears. The push-pull rod is hinged between the hinge hole and the corresponding connecting ear.

5. The adaptive dredging device for trenchless pipeline repair according to claim 1, characterized in that: The upper left and right sides of the trolley frame are respectively provided with side uprights, and the front and rear ends of the side uprights are respectively provided with liftable support plates. The liftable support plates are provided with longitudinal elongated holes that are connected to the side uprights by bolt pairs. The upper straightening wheel assembly includes four upper straightening wheels, which are respectively fixed to the upper end of the liftable support plates.

6. The adaptive dredging device for trenchless pipeline repair according to claim 1, characterized in that: The self-driven lower walking wheel set includes a driven wheel set located at the front of the bottom of the trolley frame and an active wheel set located at the rear of the bottom of the trolley frame. The active wheel axle of the active wheel set is connected to the drive motor.

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