A pipe diameter self-adaptive type pipe dredging device

Abstract

The application provides a pipe diameter self-adaptive pipe dredging device, which comprises a rack, a driving assembly and a cleaning assembly. The rack is detachably arranged at the end of a pipe to be dredged. The driving assembly is fixed to the side of the rack away from the pipe to be dredged. The cleaning assembly comprises a first screw rod, one end of which is in transmission connection with the output shaft of the driving assembly, and the other end of which extends into the pipe to be dredged through the driving assembly. The end of the first screw rod located in the pipe to be dredged is provided with an elastic shaft support in the circumferential direction, and the movable end of the elastic shaft support is provided with a cleaning frame. The radial elastic deformation of the elastic shaft support enables the cleaning frame to self-adaptively adhere to the inner wall of the pipe with different diameters, effectively solves the problem that the existing dredging device cannot adapt to various pipe diameters due to the fixed size of the cleaning head, and improves the cleaning effect and the application range.

Description

Technical Field

[0001] This application relates to the field of pipeline dredging technology, and in particular to a pipeline dredging device with adaptive pipe diameter. Background Technology

[0002] During the steelmaking process, a large amount of wastewater containing solid particles such as iron oxide scale and slag is generated. This wastewater needs to be transported and recycled through a network of pipes throughout the workshop. These pipes have varying inner diameters, and impurities in the wastewater easily accumulate and form scale, leading to pipe blockages. This severely affects the production schedule and the workshop environment, requiring frequent unblocking operations.

[0003] In existing technologies, pipe cleaners commonly used in steelmaking workshops typically employ a motor-driven rigid lead screw with a fixed-size drill bit or cleaning frame mounted at its front end. This device uses the rotation of the lead screw to propel the cleaning head at the front end, causing it to break or scrape away blockages within the pipe.

[0004] However, the fixed size of the cleaning head in these drain cleaners cannot accommodate the complex and varied pipe diameters required in steelmaking workshops. When the cleaning head is too small, it cannot effectively reach and clean the scale buildup on the inner walls of large-diameter pipes, resulting in poor performance; when the cleaning head is too large, it cannot even reach into small-diameter pipes. Therefore, workshops have to equip pipes of different diameters with multiple sets of drain cleaners or a large number of replaceable cleaning heads. This not only increases equipment procurement and storage costs but also causes delays in finding and replacing suitable tools when dealing with emergency blockages, failing to meet the maintenance requirements for continuous and efficient production in steelmaking workshops. Utility Model Content

[0005] This application provides a pipe diameter adaptive pipe cleaning device to solve the technical problems of existing pipe cleaners being unable to adapt to pipes of different diameters due to the fixed size of the cleaning head, resulting in poor cleaning effect and the need for frequent tool replacement.

[0006] To achieve the above objectives, this application provides a pipe diameter adaptive pipe unblocking device, comprising:

[0007] The frame is detachably mounted at the end of the pipe to be dredged; a drive assembly is fixedly mounted on the side of the frame away from the pipe to be dredged.

[0008] Cleaning components; the cleaning components include: the first lead screw;

[0009] One end of the first lead screw is connected to the output shaft of the drive assembly; and the other end of the first lead screw passes through the drive assembly and extends into the pipe to be unclogged.

[0010] The first lead screw has a flexible shaft bracket installed at one end inside the pipe to be dredged, along the circumferential direction; a cleaning frame is installed at the movable end of the flexible shaft bracket.

[0011] Preferably, the frame is detachably mounted at the end of the pipe to be dredged via a fixing mechanism;

[0012] The number of fixing mechanisms is at least two sets, and the fixing mechanisms are respectively set on both sides of the frame along the radial direction of the pipe to be dredged.

[0013] Preferably, the fixing mechanism includes: an adjusting screw; a threaded hole that mates with the adjusting screw on the frame; the adjusting screw passing through the threaded hole, with one end of the adjusting screw extending toward the pipe to be unclogged; and a fixing plate provided on the side of the adjusting screw extending toward the pipe to be unclogged.

[0014] When the distance between the fixed plate and the pipe to be dredged is the smallest, the fixed plate and the outer wall of the pipe to be dredged abut against each other.

[0015] Preferably, the device further includes a chassis; the chassis is located on the side of the frame away from the pipe to be dredged.

[0016] Preferably, the driving component includes:

[0017] Bushing; the bushing is rotatably mounted on the side of the chassis away from the frame;

[0018] Motor; the motor is located at the top of the chassis;

[0019] The first and second synchronous pulleys are symmetrically arranged.

[0020] The first synchronous pulley is connected to the output shaft of the motor;

[0021] The second synchronous pulley is fixedly sleeved on the outside of the bushing;

[0022] Synchronous belt; the synchronous belt is engaged between the first synchronous pulley and the second synchronous pulley.

[0023] Preferably, the inner wall of the bushing is provided with an internal thread, and the shaft of the first lead screw is provided with an external thread that mates with the internal thread.

[0024] Preferably, the device further includes: a guide rod; the guide rod is a hollow rod-shaped structure; one end of the guide rod is fixedly connected to the inner wall of the casing, and the other end of the guide rod extends through the frame into the pipe to be unclogged.

[0025] Preferably, the first lead screw passes through the hollow cavity of the guide rod, and the outer wall of the first lead screw slides in fit with the inner wall of the guide rod.

[0026] Preferably, the device further includes: a second lead screw; the two ends of the second lead screw are respectively provided with an internal threaded hole and an external threaded post; the end of the lead screw located outside the pipe to be dredged is provided with an internal threaded hole; the second lead screw and the first lead screw are detachably connected through the internal threaded hole and the external threaded post.

[0027] Preferably, the second lead screw has an external thread on its body; the second lead screw can pass through the hollow cavity of the guide rod, and the second lead screw slides in fit with the inner wall of the guide rod; the external thread of the second lead screw engages with the internal thread of the bushing.

[0028] This application achieves a dual improvement in pipe adaptability and efficient unblocking through the coordinated operation of a frame, drive assembly, and cleaning assembly with a flexible shaft. The frame is detachably fixed to the end of the pipe, providing stable support for the entire device. The drive assembly drives the first lead screw to rotate, propelling it deeper into the pipe during rotation. Simultaneously, the flexible shaft at the end of the first lead screw undergoes radial deformation according to changes in the pipe's inner diameter, ensuring the cleaning frame remains in close contact with the pipe's inner wall. This solves the problems of fixed cleaning head size, poor adaptability, and high costs and low efficiency caused by the need for multiple sets of equipment or frequent component replacements in traditional unblocking devices. It improves the applicability, timeliness, and cleaning quality of pipe unblocking, meeting the maintenance needs of various pipe diameters in steelmaking workshops. Attached Figure Description

[0029] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a three-dimensional structural diagram of a pipe diameter adaptive pipe unblocking device provided in this application;

[0031] Figure 2 This is a main sectional view of a pipe diameter adaptive pipe unblocking device provided in this application;

[0032] Figure 3 This is a schematic diagram of the cleaning component of a pipe diameter adaptive pipe dredging device provided in this application.

[0033] Illustration markings:

[0034] 1. Frame; 2. Drive assembly; 21. Bushing; 22. Motor; 23. First synchronous pulley; 24. Second synchronous pulley; 25. Synchronous belt; 3. Cleaning assembly; 31. First lead screw; 32. Elastic shaft bracket; 33. Cleaning frame; 4. Fixing mechanism; 41. Adjusting lead screw; 42. Fixing plate; 5. Housing; 6. Guide rod; 7. Second lead screw. Detailed Implementation

[0035] The embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described below do not represent all embodiments consistent with this application. They are merely examples of systems and methods consistent with some aspects of this application.

[0036] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0037] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0038] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0039] In the field of pipe cleaning technology in steelmaking workshops, existing devices for cleaning scale and blockages on pipe walls often suffer from fixed-size cleaning heads, making them unsuitable for pipes of different diameters. These cleaning devices typically use a motor-driven rigid screw to rotate a fixed-size cleaning head. When dealing with pipes of varying sizes within the plant area, this method fails to guarantee effective cleaning. When the cleaning head is smaller than the pipe's inner diameter, it cannot effectively contact and clean the entire pipe wall, creating cleaning dead zones. When the cleaning head is larger than the pipe's inner diameter, it cannot smoothly enter the pipe for operation. This necessitates the use of various sizes of cleaning equipment or a large number of replaceable cleaning heads on-site, increasing equipment procurement and storage costs. Furthermore, frequent tool changes during emergency blockages delay processing time, impacting the continuity and stability of the production process.

[0040] To address the aforementioned problems, this application provides a pipe diameter adaptive pipe unblocking device. See also... Figures 1-3 The pipe diameter adaptive pipe cleaning device includes: frame 1, drive assembly 2, and cleaning assembly 3.

[0041] The frame 1 is the basic support structure of the pipe diameter adaptive pipe dredging device. It is mainly used to detachably install the device at the end of the pipe to be dredged, so as to facilitate transfer and reuse between different pipes or work locations, and to provide stable installation support for the drive component 2 and subsequent related components.

[0042] The drive assembly 2 is fixedly installed on the side of the frame 1 away from the pipe to be dredged. The drive assembly 2 is the power source of the device. The function of the drive assembly 2 is to provide rotational power to the cleaning assembly 3, so that it can enter the pipe to be dredged and perform cleaning operations.

[0043] The cleaning component 3 includes: a first lead screw 31, an elastic shaft bracket 32, and a cleaning frame 33. The first lead screw 31 is rod-shaped, with one end connected to the output shaft of the drive component 2 to receive power, and the other end passing through the drive component 2 and extending into the pipe to be unclogged, undertaking the dual functions of power transmission and axial propulsion. The elastic shaft bracket 32 ​​is located at the end of the first lead screw 31 located in the pipe to be unclogged and is distributed along the circumference of the first lead screw 31. Its main function is to connect the first lead screw 31 and the cleaning frame 33, and to adapt the cleaning frame 33 to different pipe diameters through its own elastic deformation. The cleaning frame 33 is fixed at the movable end of the elastic shaft bracket 32 ​​and is the actuator that directly contacts the blockage in the pipe. Its core function is to scrape, peel off, or break up the blockage.

[0044] It should be noted that this device achieves detachable fixation to the end of the pipe to be dredged via the frame 1, providing a stable installation foundation for subsequent dredging operations. After the drive assembly 2 is started, it transmits power to the first lead screw 31 of the cleaning assembly 3, driving the first lead screw 31 to rotate while advancing axially into the depth of the pipe to be dredged, thereby causing the elastic shaft frame 32 and the cleaning frame 33 of the cleaning assembly 3 to rotate together and enter the interior of the pipe to be dredged. After the cleaning frame 33 rotates with the first lead screw 31 and enters the pipe to be dredged, its outer circumference will come into contact with the inner wall of the pipe to be dredged. Since the cleaning frame 33 is in a rotating state and the inner wall of the pipe to be dredged forms a radial constraint on it, a radial force is generated on the cleaning frame 33. The elastic shaft 32 is made of an elastic material and is distributed around the end of the first lead screw 31. When the inner diameter of the pipe is small, the pressure of the inner wall on the cleaning frame 33 will cause the elastic shaft 32 to shrink and deform inward. When the inner diameter of the pipe is large, the constraint force of the inner wall on the cleaning frame 33 is reduced, and the elastic shaft 32 expands and deforms outward under its own elastic restoring force.

[0045] Throughout the continuous rotation and advancement of the first lead screw 31, regardless of changes in the actual inner diameter of the pipe, the cleaning frame 33, supported by the elastic shaft 32, maintains effective contact and contact with the inner wall of the pipe. Through the continuous rotation and axial advancement of the first lead screw 31 under the action of the drive assembly 2, the cleaning frame 33, always in contact with the pipe wall, can continuously scrape and peel off scale and accumulated blockages adhering to the inner wall of the pipe. The mechanical force generated by the rotation breaks up hard scale, disperses debris, and peels it off the pipe wall. These broken and dispersed blockages are discharged with the fluid in the pipe under the advancing action of the cleaning frame 33, thereby restoring the pipe's flow.

[0046] The technical solution of this embodiment utilizes the radial elastic deformation capability of the elastic shaft 32 to enable the cleaning frame 33 to automatically adjust its working diameter according to the actual inner diameter of the pipe. This design allows a single device to effectively handle pipe dredging tasks of different diameters within a certain range, avoiding the limitations caused by fixed cleaning head sizes, improving the versatility and applicability of the device, reducing equipment investment costs and management complexity for multi-specification pipes, simplifying the operation process, and improving the response speed and work efficiency of emergency maintenance.

[0047] In some embodiments, see Figures 1-2 The frame 1 is detachably connected to the end of the pipe to be dredged through the fixing mechanism 4. Its function is to achieve detachable fixing of the frame 1 and the pipe to be dredged through the adjustable mechanical connection, which not only ensures the stability of the frame 1 during operation, but also adapts to pipes with different outer diameters to be dredged. It is especially suitable for pipe maintenance scenarios with various pipe diameters in steelmaking workshops.

[0048] The fixing mechanism 4 consists of at least two sets, respectively located on both sides of the frame 1 along the radial direction of the pipe to be dredged. This multi-set symmetrical layout provides balanced support, preventing the frame 1 from shifting during operation. Each fixing mechanism 4 comprises an adjusting screw 41 and a fixing plate 42. A threaded hole matching the adjusting screw 41 is provided on the frame 1, and the adjusting screw 41 and the frame 1 achieve helical transmission through threaded engagement. One end of the adjusting screw 41 extends through the threaded hole toward the pipe to be dredged, while the other end typically has an operating part, allowing the operator to adjust its length extending into the frame 1 by rotating the adjusting screw 41. This threaded adjustment structure is self-locking; once adjusted, the adjusting screw 41 will not loosen due to vibration, maintaining a fixed state for a long time and adapting to the complex working environment of the workshop.

[0049] The fixing plate 42 is located at the end of the adjusting screw 41 facing the pipe to be unclogged, and is a component that directly contacts the outer wall of the pipe. Its shape is usually designed as an arc, and the arc-shaped fixing plate 42 can better fit the outer wall of the circular pipe, increasing the contact area to distribute pressure.

[0050] During operation, by rotating the adjusting screws 41 on both sides of the pipe radially, the fixing plates 42 on both sides will gradually approach the outer wall of the pipe to be unclogged. The insertion length of the adjusting screws 41 can be flexibly adjusted according to the outer diameter of the pipe. When the adjusting screws 41 on both sides are tightened, the fixing plates 42 fit the outer wall of the pipe to the tightest state. The thread preload of the adjusting screws 41 forms a symmetrical clamping force, which drives the fixing plates 42 to generate sufficient static friction between the fixing plates 42 and the outer wall of the pipe to be unclogged. The adjusting screws 41 and the fixing plates 42 work together to fix the frame 1 at the end of the pipe to be unclogged.

[0051] In some embodiments, see Figure 1 and Figure 2The device also includes a housing 5, which is located on the side of the frame 1 away from the pipe to be dredged. The housing 5 is fixedly connected to the frame 1, forming a sealed box structure.

[0052] In some embodiments, see Figure 1 and Figure 2 The drive assembly 2 includes a bushing 21, a motor 22, a first synchronous pulley 23, a second synchronous pulley 24, and a synchronous belt 25. The bushing 21 is rotatably mounted on a side plate of the housing 5 away from the frame 1 via bearings, and its axis is coaxial with the axis of the pipe to be dredged. The motor 22 is fixedly mounted on the top of the housing 5, with its output shaft axis parallel to the axis of the bushing 21, and the end of the output shaft facing away from the frame 1. The first synchronous pulley 23 is fixedly mounted on the output shaft of the motor 22. The second synchronous pulley 24 is fixedly sleeved on the outside of the bushing 21, rotating synchronously with the bushing 21. The first synchronous pulley 23 on the output shaft of the motor 22 and the second synchronous pulley 24 on the bushing 21 are horizontally aligned in space. The synchronous belt 25 meshes between the first synchronous pulley 23 and the second synchronous pulley 24, forming a complete belt drive system to achieve smooth power transmission.

[0053] In some embodiments, see Figure 1 and Figure 2 The inner wall of the bushing 21 is provided with an internal thread, and the body of the first lead screw 31 is provided with an external thread that matches it. The two are connected by a threaded pair to form a screw transmission mechanism.

[0054] In some embodiments, see Figure 1 and Figure 2 The device also includes a guide rod 6; the guide rod 6 is a hollow rod-shaped structure; one end of the guide rod 6 is fixedly connected to the inner wall of the housing 5, and the other end of the guide rod 6 extends through the frame 1 into the pipe to be dredged.

[0055] In some embodiments, see Figure 1 and Figure 2 The first lead screw 31 passes through the hollow cavity of the guide rod 6, and the first lead screw 31

[0056] The outer wall of the guide rod 31 slides into the inner wall of the guide rod 6. The guide rod 6 restricts the circumferential rotational freedom of the first lead screw 31, but allows it to move freely in the axial direction, providing a key constraint for the motion conversion of the screw drive.

[0057] Understandably, when the device is running, the motor 22 starts and drives the first synchronous pulley 23 to rotate. Power is transmitted to the second synchronous pulley 24 via the synchronous belt 25, which in turn drives the bushing 21 to rotate synchronously. The bushing 21 and the first lead screw 31 are engaged by a threaded pair. The first lead screw 31 is constrained by the guide rod 6 and cannot rotate circumferentially. Under these conditions, the rotational motion of the bushing 21 is converted into the axial linear propulsion motion of the first lead screw 31 through the threaded pair. At the same time, the first lead screw 31 rotates around its own axis under the drive of the bushing 21. Thus, the first lead screw 31 achieves a combined motion of rotation and axial propulsion, driving the elastic shaft 32 and the cleaning frame 33 to penetrate the pipe synchronously. The rotational motion of the cleaning frame 33 continuously scrapes the scale on the inner wall of the pipe, while its axial propulsion motion ensures that the cleaning operation can be carried out continuously along the longitudinal direction of the pipe, thereby achieving effective unblocking of the blocked section of the pipe.

[0058] In some embodiments, see Figure 1 and Figure 2 The device also includes a second lead screw 7. The two ends of the second lead screw 7 are respectively provided with an internal threaded hole and an external threaded post. The end of the first lead screw 31 located outside the pipe to be dredged is correspondingly provided with an internal threaded hole. The second lead screw 7 and the first lead screw 31 are detachably connected through the engagement of the internal threaded hole and the external threaded post, forming a robust coaxial connection.

[0059] In some embodiments, see Figure 1 and Figure 2 The second lead screw 7 has an external thread on its body; the second lead screw 7 can be inserted into the hollow cavity of the guide rod 6, and the second lead screw 7 slides with the inner wall of the guide rod 6; the external thread of the second lead screw 7 engages with the internal thread of the bushing 21 to ensure the continuity of power transmission.

[0060] The technical solution of this embodiment of the device achieves compound motion through the connection and combination of the first lead screw 31 and the second lead screw 7, driven by the drive component 2. When dealing with pipes of different lengths, multiple second lead screws 7 can be connected sequentially via threaded connections according to the actual pipe length requirements, achieving flexible expansion of the working length. This modular extension design allows the device to combine an appropriate number of lead screws according to actual working conditions, driving the cleaning component 3 to continuously penetrate deeper into the pipe. Under the combined action of rotational motion and axial propulsion motion, the cleaning frame 33 achieves continuous scraping and cleaning of scale on the inner wall of the pipe. By increasing or decreasing the number of connected second lead screws 7, the device can effectively adapt to various pipe dredging needs from short to long distances, achieving on-demand expansion and flexible application of the work effect.

[0061] Similar parts between the embodiments provided in this application can be referred to mutually. The specific implementation methods provided above are only a few examples under the overall concept of this application and do not constitute a limitation on the scope of protection of this application. For those skilled in the art, any other implementation methods extended from the solution of this application without creative effort shall fall within the scope of protection of this application.

Claims

1. A pipe diameter adaptive pipe unblocking device, characterized in that, include: A frame (1) is detachably installed at the end of the pipe to be dredged; a drive assembly (2) is fixedly installed on the side of the frame (1) away from the pipe to be dredged. Cleaning assembly (3), the cleaning assembly (3) includes: a first lead screw (31); One end of the first lead screw (31) is connected to the output shaft of the drive assembly (2); and the other end of the first lead screw (31) passes through the drive assembly (2) and extends into the pipe to be unclogged. The first lead screw (31) is provided with an elastic shaft frame (32) along the circumferential direction at one end located inside the pipe to be dredged; a cleaning frame (33) is provided at the movable end of the elastic shaft frame (32).

2. The pipe diameter adaptive pipe unblocking device according to claim 1, characterized in that, The frame (1) is detachably installed at the end of the pipe to be dredged via a fixing mechanism (4); The number of fixing mechanisms (4) is at least two sets, and the fixing mechanisms (4) are respectively arranged on both sides of the frame (1) along the radial direction of the pipe to be dredged.

3. The pipe diameter adaptive pipe unblocking device according to claim 2, characterized in that, The fixing mechanism (4) includes: an adjusting screw (41), and a threaded hole that mates with the adjusting screw (41) is provided on the frame (1); the adjusting screw (41) passes through the threaded hole, and one end of the adjusting screw (41) extends toward the pipe to be dredged; a fixing plate (42) is provided on the side of the adjusting screw (41) that extends toward the pipe to be dredged; When the distance between the fixing plate (42) and the pipe to be dredged is the smallest, the fixing plate (42) and the outer wall of the pipe to be dredged abut against each other.

4. The pipe diameter adaptive pipe unblocking device according to claim 1, characterized in that, The device further includes a chassis (5); the chassis (5) is located on the side of the frame (1) away from the pipe to be dredged.

5. The pipe diameter adaptive pipe unblocking device according to claim 4, characterized in that, The driving component (2) includes: A bushing (21) is rotatably disposed on the side of the housing (5) away from the frame (1); Motor (22), said motor (22) is mounted on the top of the chassis (5); The first synchronous pulley (23) and the second synchronous pulley (24) are symmetrically arranged; The first synchronous pulley (23) is connected to the output shaft of the motor (22); The second synchronous pulley (24) is fixedly sleeved on the outside of the bushing (21); A timing belt (25) is engaged with the first timing pulley (23) and the second timing pulley (24).

6. The pipe diameter adaptive pipe unblocking device according to claim 5, characterized in that, The inner wall of the bushing (21) is provided with an internal thread; the shaft of the first lead screw (31) is provided with an external thread that mates with the internal thread.

7. The pipe diameter adaptive pipe unblocking device according to claim 5, characterized in that, The device further includes: a guide rod (6), which is a hollow rod-shaped structure; one end of the guide rod (6) is fixedly connected to the inner wall of the housing (5), and the other end of the guide rod (6) extends through the frame (1) into the pipe to be dredged.

8. The pipe diameter adaptive pipe unblocking device according to claim 7, characterized in that, The first lead screw (31) passes through the hollow cavity of the guide rod (6), and the outer wall of the first lead screw (31) slides in conjunction with the inner wall of the guide rod (6).

9. The pipe diameter adaptive pipe unblocking device according to claim 8, characterized in that, The device further includes: a second lead screw (7); the two ends of the second lead screw (7) are respectively provided with an internal threaded hole and an external threaded post; the end of the first lead screw (31) located outside the pipe to be dredged is provided with an internal threaded hole; the second lead screw (7) and the first lead screw (31) are detachably connected through the internal threaded hole and the external threaded post.

10. The pipe diameter adaptive pipe unblocking device according to claim 9, characterized in that, The second lead screw (7) has an external thread on its body; the second lead screw (7) can be inserted into the hollow cavity of the guide rod (6), and the second lead screw (7) slides with the inner wall of the guide rod (6); the external thread of the second lead screw (7) is engaged with the internal thread of the bushing (21).

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