Cleaning device for residues in pipeline

Abstract

The utility model relates to a cleaning device for residues in a pipeline, which comprises a trolley which is a trolley body provided with an inclined surface from low to high in the advancing direction of the cleaning device for the residues in the pipeline; the conveying shell is a hollow rigid cavity which is connected or fixed on the inclined surface of the trolley in a sliding manner, the section of the hollow rigid cavity is circular or rectangular, and the two ends of the hollow rigid cavity are open; the chain is a flexible chain which is located in the conveying shell, carries out transportation from bottom to top on the upper side in the conveying shell and does rotary circulating motion; the material guide plate is a rigid plate-shaped body which is fixed on a chain link of the chain and is vertical to the conveying direction of the chain; a skip car; and the material guide plate rotates by means of the chain, transports and cleans residues in the pipeline. The pipeline residue cleaning device has the beneficial effects that residue collection and transportation are achieved through rotary motion of the chain, and the problem that in the prior art, a pipeline residue cleaning device after milling is lacked is solved.

Description

Technical Field

[0001] This utility model belongs to the field of non-open pipeline technology, specifically relating to a device for cleaning residue inside pipelines. Background Technology

[0002] Due to prolonged operation, changes in the external environment, and inherent quality issues, pipelines inevitably experience some damage. To save urban space and enhance the cityscape, pipelines are typically buried beneath city roads. Repairing damaged pipelines usually requires closing and excavating roads, causing disruption to urban traffic and residents' daily lives. With the development of technology, trenchless repair and replacement methods have emerged.

[0003] In the existing technology, a repair method using milling of old pipes has been proposed. The trenchless technology of milling and expanding the pipe before inserting a metal pipe is more suitable for current needs. This repair method expands the diameter of the original pipe using a milling and expanding machine, and then inserts a metal pipe with the same or similar inner diameter as the original pipe. This can ensure that the water supply flow remains unchanged to the greatest extent, meeting the water needs of people's production and daily life. At the same time, the new pipe is of excellent quality and will not have quality problems for half a century after a single repair, far exceeding the quality of other chemical repair methods such as UV curing.

[0004] However, milling leaves some residue inside the pipe. Existing pipe cleaning equipment is primarily designed for sludge removal, i.e., high-pressure water jet washing. For large-diameter pipes (over two meters), manual cleaning or cleaning with small engineering vehicles is possible. But for long-distance pipes where people cannot stand or where engineering equipment cannot access, there is currently no mature sludge removal equipment.

[0005] Therefore, there is an urgent need for a device to clean the residue left at the bottom of the pipe after milling. Summary of the Invention

[0006] To overcome the technical problem of existing technologies being unable to clean residue from the bottom of pipes, and considering the arc-shaped bottom surface of the milled pipe and the overall narrowness of the pipe, which traditional cleaning and sweeping equipment cannot handle, this application utilizes a chain-driven, winch-like method to clean residue retained at the bottom of the pipe.

[0007] The technical solution adopted by this utility model is: a pipe residue cleaning device, comprising:

[0008] The trolley has an inclined surface that is set from low to high in the direction of travel of the residue cleaning device in the pipeline.

[0009] The conveying housing is a hollow, rigid cavity with a circular or rectangular cross-section and open at both ends, which is slidably connected to or fixed to the inclined surface of the trolley.

[0010] The chain is a flexible chain located inside the conveyor housing, transporting goods from bottom to top on the upper side inside the conveyor housing, and rotating in a cyclic motion.

[0011] The guide plate is a rigid plate-shaped body fixed to the chain link and perpendicular to the chain's transport direction;

[0012] The material cart is a vehicle body located below the highest point of the chain conveyor, moving with the trolley or powered by an automatic force, and equipped with an upward-facing material bin;

[0013] The guide plate is fitted with the interior of the conveying housing with a clearance.

[0014] The guide plate, aided by the rotation of the chain, transports and cleans the residue inside the pipe.

[0015] Furthermore, it also includes:

[0016] The collecting housing is a horizontally arranged rigid cavity with one end open and the other end connected to the conveying housing;

[0017] The first rotating shaft is connected to the collection housing, is located near the conveying housing or is shared with the chain during rotational transport, and is perpendicular to the travel direction of the residue cleaning device in the pipeline.

[0018] Rotating blades, fixed on the first rotating shaft, rotate toward the center of the residue cleaning device in the pipe; two rotating blades are located on both sides of the chain.

[0019] Furthermore, it also includes:

[0020] The second rotating shaft is located on the opening side of the collection housing and is arranged parallel to the first rotating shaft;

[0021] The paddle is a flexible sheet-like body fixedly connected to the second rotating shaft;

[0022] Multiple paddles are spaced apart and staggered on the second rotating shaft.

[0023] Furthermore,

[0024] The second rotating shaft is linked to the first rotating shaft by means of a synchronous belt.

[0025] Furthermore,

[0026] When the paddle rotates with the aid of the second rotating shaft, its end protrudes beyond the bottom surface of the collection housing.

[0027] Furthermore,

[0028] The conveying housing and the trolley are also equipped with mutually cooperating linear slide rails;

[0029] A lifting drive is fixedly connected to the trolley, and the driving end of the lifting drive is hinged to the conveying housing. The conveying housing slides up and down on the inclined surface of the trolley with the help of the lifting drive.

[0030] Furthermore,

[0031] The lifting drive is an electric cylinder.

[0032] Furthermore,

[0033] The conveying housing has an opening at a high position facing downwards, and its ends are provided with downward-facing arc-shaped chamfered surfaces.

[0034] Furthermore,

[0035] The width of the collection housing is greater than the width of the conveying housing.

[0036] Furthermore,

[0037] The width of the guide plate is less than one-eighth of the diameter of the pipe;

[0038] The overall width of the pipe residue cleaning device is less than one-quarter of the pipe diameter.

[0039] The advantages of this invention over the prior art are: by utilizing the rotational motion of the chain, the collection and transportation of residues are achieved, overcoming the problem of the lack of a device for cleaning pipe residues after milling in the prior art. Attached Figure Description

[0040] Figure 1 This is an axial view of a specific embodiment of the present utility model;

[0041] Figure 2 This is an axial view of a specific embodiment of the present invention (outer housing not shown);

[0042] Figure 3 This is a top view of a specific embodiment of the present invention (outer casing not shown);

[0043] Figure 4 This is a side view of a specific embodiment of the present invention (outer casing not shown);

[0044] The annotation is represented as follows:

[0045] 100 - Conveyor housing; 110 - Chain; 120 - Guide plate;

[0046] 200-material cart;

[0047] 300 - Collection housing; 310 - First rotating shaft; 320 - Spiral blade; 330 - Second rotating shaft; 340 - Paddle;

[0048] 400 - Cart; 410 - Linear guide rail; 420 - Lifting drive. Detailed Implementation

[0049] The technical solutions in the embodiments are clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] To overcome the technical problem of existing technologies being unable to clean residue from the bottom of pipes, and considering the arc-shaped bottom surface of the milled pipe and the overall narrowness of the pipe, which traditional cleaning and sweeping equipment cannot handle, this application utilizes a chain-driven, winch-like method to clean residue accumulated at the bottom of the pipe. Please refer to... Figures 1 to 4 The technical solution adopted in this specific implementation is as follows:

[0051] Please see Figure 1 , Figure 2 and Figure 4 A pipe residue cleaning device, comprising:

[0052] The trolley 400 has an inclined surface set from low to high in the direction of travel of the residue cleaning device in the pipeline.

[0053] The conveying housing 100 is a hollow, rigid cavity with a circular or rectangular cross-section and open at both ends, which is slidably connected to or fixed to the inclined surface of the trolley 400; please refer to Figure 1 In this embodiment, the cross-section of the conveying housing 100 is rectangular;

[0054] Chain 110 is a flexible chain located inside the conveyor housing 100, transporting goods from bottom to top inside the upper side of the conveyor housing 100 and rotating in a circular motion. It should be noted that in this embodiment, a chain with links is used. In other embodiments, a conveyor belt with a certain rigidity can also achieve this technical solution. Under the premise that the technical problem solved is the same, the two can be considered to have equivalent technical features.

[0055] The guide plate 120 is a rigid plate-shaped body fixed on the link of the chain 110 and perpendicular to the transport direction of the chain 110. In some other embodiments, as described above, a conveyor belt can be used. If it is a rubber conveyor belt, the belt body and the guide plate 120 can be integrated. For those skilled in the art, after understanding this technical solution, they can be considered to be equivalent technical features.

[0056] The material cart 200 is located below the highest point of the chain 110 conveying, moves with the trolley 400 or is powered by an electric motor, and has a hopper with an opening facing upwards.

[0057] The guide plate 120 is fitted with the interior of the conveying housing 100 with a clearance.

[0058] The guide plate 120 rotates via the chain 110 to transport and clean residue from inside the pipe. (See also...) Figure 2 In this specific embodiment, the rotation refers to the use of two shafts, each equipped with gears, with a chain 110 mounted on the two gears to achieve a circular rotational motion. In the above embodiment, the guide plate 120 can be used to pick up the residue, thus achieving residue cleaning.

[0059] Please see Figure 3 In other embodiments, in order to expand the cleaning range and improve the efficiency of cleaning residue around the perimeter, it is not simply limited to the assumption that all residue is deposited on the curved bottom surface of the pipe. Preferably, it also includes:

[0060] The collecting housing 300 is a horizontally arranged rigid cavity with one end open and the other end connected to the conveying housing 100.

[0061] The first rotating shaft 310 is connected to the collecting housing 300, located near the conveying housing 100 or shared with the chain 110 during rotational transport, and is perpendicular to the travel direction of the residue cleaning device in the pipeline; please refer to Figure 2 In this embodiment, the first rotating shaft 310 and the chain 110 use the same shaft for rotation.

[0062] Rotating blades 320, fixed to the first rotating shaft 310, rotate toward the center of the pipe residue cleaning device; two rotating blades 320 are located on both sides of the chain 110. In this embodiment, the rotating blades 320 are equivalent to a section of an auger in some tubular conveying devices, which is a segment less than or equal to one circumference. The two rotating blades 320, arranged back-to-back, can gather the residue on both sides into the receiving range of the guide plate 120 during rotation by means of the same shaft.

[0063] Please see Figure 3In other embodiments, to further collect the residue, it is preferable to further include:

[0064] The second rotating shaft 330 is a shaft located on the opening side of the collection housing 300 and arranged parallel to the first rotating shaft 310;

[0065] The paddle 340 is a flexible sheet-like body fixedly connected to the second rotating shaft 330;

[0066] Multiple paddles 340 are spaced apart and staggered on the second rotating shaft 330. In this embodiment, the staggered arrangement means that they are arranged at different angles around the second rotating shaft 330, so that at different stages of the rotation of the second rotating shaft 330, the paddles 340 will push the residue toward the rear guide plate 120 area.

[0067] In other embodiments, please refer to Figure 3 Preferred

[0068] The second rotating shaft 330 is linked with the first rotating shaft 310 by means of a synchronous belt.

[0069] To improve collection efficiency, in some embodiments, considering that the lower side of the pipe is an arc-shaped surface, preferably...

[0070] When the paddle 340 rotates with the aid of the second rotating shaft 330, its end protrudes from the bottom surface of the collection housing 300.

[0071] Similar to the previous embodiment, the problem encountered is that, due to the curved surface of the lower side of the pipe, the wheel spacing of the overall device prevents its plane from reaching the bottom. Therefore, a mechanism is provided to adjust the downward movement of the guide plate 120. Please refer to [link to previous document]. Figure 1 ,

[0072] The conveying housing 100 and the trolley 400 are also provided with mutually cooperating linear slide rails 410;

[0073] A lifting drive 420 is fixedly connected to the trolley 400. The driving end of the lifting drive 420 is hinged to the conveying housing 100. The conveying housing 100 slides up and down on the inclined surface of the trolley 400 with the help of the lifting drive 420.

[0074] In some embodiments, preferred

[0075] The lifting drive 420 is an electric cylinder.

[0076] Preferred,

[0077] The conveying housing 100 has an opening at a high position facing downwards, and its end is provided with a downward-facing arc-shaped chamfered surface.

[0078] To improve the cleaning surface area, in some embodiments, preferably...

[0079] The width of the collecting housing 300 is greater than the width of the conveying housing 100.

[0080] Because the range of pipe diameters that need to be cleaned is very wide, different cleaning equipment is required for different pipe diameters, and the optimal equipment should be selected accordingly.

[0081] The width of the guide plate 120 is less than one-eighth of the diameter of the pipe;

[0082] The overall width of the pipe residue cleaning device is less than one-quarter of the pipe diameter.

[0083] During operation: The trolley 400 and the material cart 200 enter the pipe one after the other. Due to the arc shape of the bottom surface of the pipe, when the distance between the guide plate 120 and the bottom surface is large, the height of the guide plate 120 is adjusted using the linear guide rail 410 to get as close to the bottom surface as possible. The chain 110 rotates, driving the guide plate 120 to move. The guide plate 120 will scoop up or receive the residue swept by the rotating blades 320 and / or the paddles 340, and use the chain 110 to rotate to transport the residue to the tail end of the conveying housing 100, where it falls onto the material cart 200 through the opening. The material cart 200 can enter and exit the pipe with the trolley 400 for unloading, or it can be independently powered to enter and exit for unloading, thereby cleaning the residue inside the pipe. The beneficial effect is that the collection and transportation of residue is achieved by using the rotational motion of the chain, overcoming the problem of the lack of a post-milling pipe residue cleaning device in the existing technology.

[0084] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for cleaning residue inside pipes, characterized in that, include: The trolley (400) has an inclined surface set from low to high in the direction of travel of the pipe residue cleaning device; The conveying housing (100) is a hollow, rigid cavity with a circular or rectangular cross-section and open at both ends, which is slidably connected to or fixed to the inclined surface of the trolley (400). The chain (110) is a flexible chain located inside the conveying housing (100), transporting from bottom to top inside the upper side of the conveying housing (100), and rotating in a cyclic motion; The guide plate (120) is a rigid plate-shaped body fixed on the link of the chain (110) and perpendicular to the transport direction of the chain (110); The material cart (200) is located below the highest point of the chain (110) conveyor, moves with the trolley (400) or is powered by an electric motor, and has a hopper with an opening facing upwards. The guide plate (120) is fitted with the inside of the conveying housing (100) with a clearance. The guide plate (120) rotates with the aid of the chain (110) to transport and clean the residue inside the pipe.

2. The pipe residue cleaning device according to claim 1, characterized in that, Also includes: The collecting housing (300) is a horizontally arranged rigid cavity with one end open and the other end connected to the conveying housing (100); The first rotating shaft (310) is connected to the collection housing (300), is located near the conveying housing (100) or is shared with the chain (110) during rotational transport, and is perpendicular to the travel direction of the residue cleaning device in the pipeline; Rotating blades (320) are fixed on the first rotating shaft (310) and rotate toward the center of the residue cleaning device in the pipe; the two rotating blades (320) are located on both sides of the chain (110).

3. The pipe residue cleaning device according to claim 2, characterized in that, Also includes: The second rotating shaft (330) is a shaft located on the opening side of the collection housing (300) and arranged parallel to the first rotating shaft (310); The paddle (340) is a flexible sheet-like body fixedly connected to the second rotating shaft (330); Multiple paddles (340) are spaced apart and staggered on the second rotating shaft (330).

4. The pipe residue cleaning device according to claim 3, characterized in that, The second rotating shaft (330) is linked with the first rotating shaft (310) by means of a synchronous belt.

5. The pipe residue cleaning device according to claim 3, characterized in that, When the paddle (340) rotates by means of the second pivot (330), its end protrudes from the bottom surface of the collection housing (300).

6. The pipe residue cleaning device according to claim 1, characterized in that, The conveying housing (100) and the trolley (400) are also provided with mutually cooperating linear slide rails (410). A lifting drive (420) is fixedly connected to the trolley (400). The driving end of the lifting drive (420) is hinged to the conveying housing (100). The conveying housing (100) slides up and down on the inclined surface of the trolley (400) with the help of the lifting drive (420).

7. The pipe residue cleaning device according to claim 6, characterized in that, The lifting drive (420) is an electric cylinder.

8. The pipe residue cleaning device according to claim 1, characterized in that, The conveying housing (100) has an opening at a high position facing downwards, and its end is provided with a downward-facing arc-shaped chamfered surface.

9. The pipe residue cleaning device according to claim 2, characterized in that, The width of the collecting housing (300) is greater than the width of the conveying housing (100).

10. The pipe residue cleaning device according to any one of claims 1-9, characterized in that, The width of the guide plate (120) is less than one-eighth of the diameter of the pipe; The overall width of the pipe residue cleaning device is less than one-quarter of the pipe diameter.

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