Variable diameter cleaning tool head

Abstract

The utility model relates to a variable-diameter cleaning tool head, belong to pipeline cleaning technical field. Including the rotation lever, the protective sheath, the shaving and the spray subassembly, its characterized in that: the rotation lever one end head is fixed with first connector, the rotation lever on first connector side is equipped with second connector through the key and the key groove, the rotation lever between first connector and second connector is equipped with return spring, first connector and second connector between the rotation lever are provided with shaving, and the shaving can be according to the different self -adaptation deformation of the pipe diameter to be cleaned, and the rotation lever on the one side of the limiting baffle is equipped with the spray subassembly, and the rotation lever on the one side of the spray subassembly is equipped with the protective sheath. The variable-diameter cleaning tool head can adapt to the pipeline system of different pipe diameters, and can clean completely with the pipe wall contour, avoid the problem of cleaning dead angle.

Description

Technical Field

[0001] This utility model relates to a variable diameter cleaning tool head, belonging to the field of pipeline cleaning technology. Background Technology

[0002] In industrial production, pipeline systems, as critical facilities for fluid transportation, inevitably accumulate dirt, scale, and deposits on their inner walls over long-term operation. These deposits not only reduce the effective pipe diameter, increase fluid transport resistance, and decrease system energy efficiency, but can also induce safety hazards such as localized corrosion and bacterial growth, and in severe cases, even lead to pipe blockage or rupture. To address this problem, the industry commonly employs traditional cleaning methods such as mechanical scraping and high-pressure water jetting, but these methods still have many shortcomings in practical applications.

[0003] Traditional cleaning tools, due to limitations in their structural design, often struggle to adapt to the complex piping conditions in industrial production. Fixed-size cleaning tools lack the necessary adjustment capabilities when dealing with piping systems of varying diameters, performing particularly poorly in changing-diameter pipes or pipelines with complex routing. Furthermore, the rigid structure of existing cleaning tools makes it difficult to fully conform to the pipe wall contours, resulting in cleaning blind spots and limited effectiveness in removing stubborn deposits. While high-pressure water jet technology offers a wider coverage area, its efficiency in removing dense scale is low. Therefore, improvements are necessary. Summary of the Invention

[0004] The purpose of this utility model is to provide a variable diameter cleaning tool head that can adapt to pipes of different diameters and completely conform to the pipe wall contour, thus avoiding the problem of cleaning dead corners.

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

[0006] A variable diameter cleaning tool head includes a rotating rod, a protective sleeve, a scraper, and a spray assembly. The rotating rod is characterized by: a first connector fixedly mounted at one end; a second connector fitted onto the rotating rod on one side of the first connector via a key and keyway; a return spring fitted onto the rotating rod between the first and second connectors; a scraper disposed between the first and second connectors, the scraper being adaptable to different pipe diameters to be cleaned; a spray assembly fitted onto the rotating rod on one side of a limiting baffle; and a protective sleeve fitted onto the rotating rod on one side of the spray assembly.

[0007] The first connector and the second connector are both cylindrical.

[0008] The scraping component includes scraping units, which are evenly distributed at 120° intervals between the first connector and the second connector.

[0009] The scraping unit includes a first fixing ring, a second fixing ring, and an iron chain. The first fixing ring is fixedly installed on the circumference of the first connector, and the second fixing ring is fixedly installed on the circumference of the second connector. An iron chain is fixedly installed between the first fixing ring and the second fixing ring, and scrapers are evenly distributed and fixed on the iron chain.

[0010] The spray assembly includes a bearing, a nozzle, and a tube ring. The bearing and tube ring are movably mounted on a rotating rod. Multiple nozzles are evenly distributed around the circumference of the bearing. Each nozzle is equipped with a flexible tube. The tube ring corresponding to the flexible tube has a fixing hole. The flexible tube extends through the fixing hole and towards the rear of the tube ring.

[0011] The protective sleeve is in the shape of a corrugated tube.

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

[0013] The variable-diameter cleaning tool head is first coaxially fixed to the drive shaft of the cleaning site motor via a coupling. Then, holding the protective sleeve, the scraper on the rotating rod is placed into the pipe to be cleaned. The motor drive shaft is started, and the drive shaft drives the rotating rod to rotate via the coupling. When the rotating rod rotates, it drives the first and second connecting heads to rotate synchronously. At the same time, the first and second connecting heads rotate synchronously, causing the chain and scraper to rotate synchronously. After the scraper on the chain generates centrifugal force, the second connecting head moves towards the first connecting head. The first and second connecting heads work together to compress and store energy in the return spring, causing the chain to form a shape on the outer circumference of the rotating rod. The chain is elliptical in shape to achieve a state of force balance. Because the chain is flexible, when the peaks and valleys of the chain come into contact with the pipe wall, they are limited by the straight shape of the pipe wall. The peaks and valleys of the chain conform to the contour of the pipe wall, performing a hammering and scraping action on the dirt on the pipe wall. Each hose is connected to a water pump, which pumps water into the spray head. The spray action of the spray head can further clean the dirt on the pipe wall. The worker holds the protective sleeve and pushes the rotating rod forward, so that the rotating rod drives the scraper to rotate and move forward to clean the pipe wall. This variable diameter cleaning tool head can adapt to pipe systems with different pipe diameters and can completely conform to the contour of the pipe wall for cleaning, avoiding the problem of cleaning dead corners. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0016] Figure 3 for Figure 1 Enlarged structural diagram at point B;

[0017] Figure 4 This is a front view structural diagram of the present invention.

[0018] In the diagram: 1. Rotating rod; 2. Protective sleeve; 3. First connector; 4. Second connector; 5. Return spring; 6. First retaining ring; 7. Second retaining ring; 8. Chain; 9. Scraper; 10. Bearing; 11. Nozzle; 12. Bundle ring; 13. Hose. Detailed Implementation

[0019] See appendix Figure 1-4

[0020] The variable diameter cleaning tool head includes a rotating rod 1, a protective sleeve 2, a scraper and a spray assembly. A first connector 3 is fixedly installed at one end of the rotating rod 1. A second connector 4 is fitted on the rotating rod 1 on one side of the first connector 3 via a key and a keyway. During operation, when the rotating rod 1 rotates, it can drive the first connector 3 and the second connector 4 to rotate synchronously. At the same time, the second connector 4 can slide along the axial direction of the rotating rod 1.

[0021] The first connector 3 and the second connector 4 are both cylindrical. A return spring 5 is fitted onto the rotating rod 1 between the first connector 3 and the second connector 4. A scraping component is provided between the first connector 3 and the second connector 4. The scraping component includes scraping units, which are evenly distributed at 120° intervals between the first connector 3 and the second connector 4. The scraping unit includes a first fixing ring 6, a second fixing ring 7, and an iron chain 8. The first fixing ring 6 is fixedly installed on the circumference of the first connector 3, and the second fixing ring 7 is fixedly installed on the circumference of the second connector 4. An iron chain 8 is fixedly installed between the first fixing ring 6 and the second fixing ring 7. Scrapers 9 are evenly distributed and fixedly installed on the iron chain 8. During operation, under the elastic force of the return spring 5, the scraping component can be kept taut, preventing the iron chains 8 from tangling when it starts to rotate. When the rotating rod 1 drives the first connector 3 and the second connector 4 to rotate synchronously, the first connector 3 and the second connector 4 drive the iron chain 8 and the scrapers 9 to rotate synchronously. After the scraper 9 on the chain 8 generates centrifugal force, it causes the shape of the chain 8 to change. This change is the result of the centrifugal force attempting to push the links of the chain 8 to the outside, and the rigidity of the chain 8 itself. At the same time, the second connector 4 moves towards the first connector 3. The first connector 3 and the second connector 4 work together to compress and store energy in the return spring 5, preparing for the subsequent return of the chain 8. Under the high-speed rotation of the rotating rod 1, the chain 8 forms an ellipse on the outer circle of the rotating rod 1 to achieve a state of force balance. Since the chain 8 is flexible and can be bent, the peaks and valleys of the elliptical chain 8 can contact the pipe wall. Furthermore, the peaks and valleys of the chain 8 are limited by the straight shape of the pipe wall. Thus, the peaks and valleys of the chain 8 conform to the straight shape of the pipe wall and automatically adapt to deform into a straight shape. As a result, the chain 8 and the scraper 9 perform a hammering scraping action on the dirt on the pipe wall. At the same time, as the chain 8 moves forward along the pipe wall, it can adapt to different pipe inner diameters for cleaning operations.

[0022] A spray assembly is mounted on the rotating rod 1 on one side of the limiting baffle. The spray assembly includes a bearing 10, a nozzle 11, and a tube ring 12. The bearing 10 and the tube ring 12 are movably mounted on the rotating rod 1. Multiple nozzles 11 are evenly distributed around the circumference of the bearing 10. A hose 13 is fixedly installed on each nozzle 11. The tube ring 12 corresponding to the hose 13 is provided with a fixing hole. The hose 13 extends through the fixing hole and extends behind the tube ring 12. In use, the tube ring 12 is used to traction and guide the hose 13 so that the water inside the hose 13 can be smoothly delivered to the spray head. The spray from the spray head can further clean the dirt on the tube wall.

[0023] A protective sleeve 2 is fitted on the rotating rod 1 on one side of the spray assembly. The protective sleeve 2 is in the shape of a corrugated pipe so that it can be bent and deformed to adapt to the working conditions inside the pipe. During operation, the protective sleeve 2 is set on the outer circle of the rotating rod 1 so that the operator can hold the protective sleeve 2 and pull the rotating rod 1 forward or backward through the protective sleeve 2 to carry out pipe wall cleaning operation.

[0024] When using this variable diameter cleaning tool head, firstly, fix the rotating rod 1 coaxially with the drive shaft of the motor at the cleaning site using a coupling. Then, holding the protective sleeve 2, place the scraper on the rotating rod 1 into the pipe to be cleaned. Start the motor's drive shaft, which drives the rotating rod 1 to rotate via the coupling. As the rotating rod 1 rotates, it causes the first connector 3 and the second connector 4 to rotate synchronously. Simultaneously, the first connector 3 and the second connector 4 rotate synchronously, causing the chain 8 and the scraper 9 to rotate synchronously. After the scraper 9 on the chain 8 generates centrifugal force, the second connector 4 will move towards the first connector 3. The connector 4, in conjunction with the return spring 5, compresses and stores energy, causing the chain 8 to form an ellipse on the outer circle of the rotating rod 1, thus achieving a state of force balance. Since the chain 8 is flexible, when the peak and valley areas of the chain 8 come into contact with the pipe wall, they are limited by the straight shape of the pipe wall, so the peak and valley areas of the chain 8 conform to the contour of the pipe wall, performing a hammering and scraping action on the dirt on the pipe wall. Each hose 13 is connected to an external water pump, which pumps water into the spray head. The spraying action of the spray head can further clean the dirt on the pipe wall. The worker holds the protective sleeve 2 and pushes the rotating rod 1 forward, so that the rotating rod 1 drives the scraper 9 to rotate and move forward to clean the pipe wall.

[0025] This variable diameter cleaning tool head can adapt to pipe systems of different diameters, and at the same time, it can completely conform to the contour of the pipe wall for cleaning, avoiding the problem of cleaning dead corners.

Claims

1. A variable diameter cleaning tool head, comprising a rotating rod (1), a protective sleeve (2), a scraper, and a spray assembly, characterized in that: A first connector (3) is fixedly mounted on one end of the rotating rod (1). A second connector (4) is fitted on the rotating rod (1) on one side of the first connector (3) via a key and keyway. A return spring (5) is fitted on the rotating rod (1) between the first connector (3) and the second connector (4). A scraper is provided between the first connector (3) and the second connector (4). The scraper can adapt to different pipe diameters to be cleaned. A spray assembly is fitted on the rotating rod (1) on one side of the limiting baffle. A protective sleeve (2) is fitted on the rotating rod (1) on one side of the spray assembly.

2. The variable diameter cleaning tool head according to claim 1, characterized in that: The first connector (3) and the second connector (4) are cylindrical bodies.

3. The variable diameter cleaning tool head according to claim 1, characterized in that: The scraping component includes scraping units, which are evenly distributed at 120° between the first connector (3) and the second connector (4).

4. A variable diameter cleaning tool head according to claim 3, characterized in that: The scraping unit includes a first fixing ring (6), a second fixing ring (7) and an iron chain (8). The first fixing ring (6) is fixedly installed on the circumference of the first connector (3), and the second fixing ring (7) is fixedly installed on the circumference of the second connector (4). An iron chain (8) is fixed between the first fixing ring (6) and the second fixing ring (7), and scrapers (9) are evenly distributed and fixed on the iron chain (8).

5. A variable diameter cleaning tool head according to claim 1, characterized in that: The spray assembly includes a bearing (10), a nozzle (11), and a tube ring (12). The bearing (10) and the tube ring (12) are mounted on the rotating rod (1) with a movable interval. Multiple nozzles (11) are evenly distributed on the circumference of the bearing (10). Each nozzle (11) is equipped with a hose (13). The tube ring (12) corresponding to the hose (13) is provided with a fixing hole. The hose (13) extends through the fixing hole to the rear of the tube ring (12).

6. A variable diameter cleaning tool head according to claim 1, characterized in that: The protective sleeve (2) is in the shape of a corrugated pipe.

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