Combined cleaning nozzle

Abstract

The invention discloses a combined cleaning nozzle which comprises a barrel component, a first cylinder component and a driving component, a second cylinder component is arranged in the barrel component, the first cylinder component and the second cylinder component are connected through a shaft, and the driving shaft axially moves in the first cylinder component while the driving component drives the first cylinder component to rotate. When a transition hole in a shaft is communicated with a steering spraying hole in a first cylinder part, an inner spraying hole set in the second cylinder part is just communicated with a first outer spraying hole set in the cylinder part in a one-to-one correspondence mode, and the first outer spraying hole set is communicated with a second outer spraying hole set in the cylinder part in a one-to-one correspondence mode. The rotating function of the combined type cleaning nozzle is achieved, meanwhile, the combined type cleaning nozzle continues to move in the pipe, and when the third outer spraying hole set in the shaft protrudes out of the first column part to form front spraying, the inner spraying hole sets are exactly communicated with the second outer spraying hole sets in the barrel part in a one-to-one correspondence mode, so that the combined type cleaning nozzle cleans the inner circumferential face of the pipe while moving in the pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline cleaning and relates to a combined cleaning nozzle, in particular to a combined cleaning nozzle for pipeline cleaning. Background Art

[0002] Pipelines are used extensively in industrial and agricultural production, as well as in daily life. During their use, they can become clogged, fail, and become damaged, necessitating regular maintenance and overhaul. When transporting liquids and gases, such as oil, natural gas, and even civilian water supply and drainage pipes, high-temperature coking often occurs due to temperature and pressure variations, as well as the physical and chemical interactions between the medium and the pipe. This can lead to the formation of oil and scale, deposits, and corrosive substances, resulting in a reduction in the effective transmission diameter, decreased efficiency, increased material and energy consumption, process interruptions, equipment failure, and potentially safety incidents.

[0003] Regular cleaning of pipelines can slow down the corrosion rate of pipelines, extend the service life of pipelines, reduce production costs, and generate high economic benefits. However, pipeline cleaning is very inconvenient due to its small space and long cleaning channels. The use of a cleaning device that can actively move in the pipeline can replace manual entry into pipelines with smaller diameters, making pipeline inspection and cleaning more convenient, thereby reducing costs, reducing manpower and material resources, improving cleaning efficiency, and ensuring the normal use of pipelines.

[0004] Existing pipeline cleaning devices all have certain problems, such as:

[0005] 1. It can only clean straight pipes and does not have a turning function. It cannot achieve arbitrary turning in the pipeline and cannot clean various different curved pipelines;

[0006] 2. It only has a single cleaning working state and cannot switch to different working states according to the specific conditions in the pipeline. It has poor adaptability and low cleaning efficiency.

[0007] Therefore, there is room for improvement in the existing pipeline cleaning devices on the market. Summary of the Invention

[0008] In order to solve the technical problems existing in the background technology, the present invention proposes a combined cleaning nozzle, which can complete the steering in any direction in the pipe and can realize the free switching of multiple working states such as movement, steering, and cleaning.

[0009] The purpose of the present invention can be achieved through the following technical solutions:

[0010] A combined cleaning nozzle is installed at the front end of a hose that supplies high-pressure cleaning fluid. It moves inside the pipe through the spray of the high-pressure cleaning fluid and cleans the inside of the pipe. The nozzle has a first flow channel section that can be directly or indirectly connected to the hose and a second flow channel section that is directly or indirectly connected to the first flow channel section. The nozzle has a spray hole group that is connected to the first flow channel section and causes the high-pressure cleaning fluid in the first flow channel section to be sprayed outward. The nozzle includes: a barrel component, a first column component, and a driving component. The driving component is connected to the barrel component. The first column component has a steering spray hole that can be connected to the second flow channel section. The driving component is connected to the first column component and can drive the first column component to rotate to change the direction of the steering spray hole to cause the nozzle to turn.

[0011] Furthermore, the barrel component has a first outer spray hole group and a second outer spray hole group, and the nozzle includes: a second column component axially movably installed in the barrel component, the second column component has a first flow channel section, the second column component has an inner spray hole group, and a driving component is connected to the second column component. The driving component can drive the second column component to move axially in the barrel component until the inner spray hole group is connected to the first outer spray hole group or the second outer spray hole group in a one-to-one correspondence to form a spray hole group that sprays the high-pressure cleaning fluid in the first flow channel section outward, and switches the high-pressure cleaning fluid between being sprayed by the first outer spray hole group and the second outer spray hole group.

[0012] Furthermore, the driving component includes: a motor, an output shaft of the motor, and a shaft. The output shaft passes through the motor, and has a center hole passing through the output shaft, and has an internal thread in the center hole. One end of the output shaft is fixedly connected to the first column component and can drive the first column component to rotate, one end of the shaft is fixedly connected to the second column component, and the other end of the shaft moves axially through the first column component. The shaft with an external thread is adapted to pass through the center hole and the internal thread and the external thread are matched, so that the motor can drive the shaft to move axially through the output shaft, and the shaft has a second flow channel section, and the shaft has a transition hole connected to the second flow channel section. The shaft can move to the transition hole to directly or indirectly connect to the steering nozzle so that the steering nozzle is connected to the second flow channel section or the transition hole and the steering nozzle are staggered. When the first column component rotates when the transition hole is connected to the steering nozzle, the direction of the steering nozzle will change and the nozzle will be turned.

[0013] Furthermore, the transition hole is indirectly connected to the steering spray hole specifically as follows: an annular groove connected to the steering spray hole is provided on the inner wall of the first column component, and the transition hole is indirectly connected to the steering spray hole through the annular groove.

[0014] Furthermore, when the transition hole is connected to the steering spray hole, the first outer spray hole group axially close to the hose is connected to the inner spray hole group in a one-to-one correspondence.

[0015] Furthermore, the shaft is provided with a third outer spray hole group connected with the second flow channel section, and the shaft can be moved until the third outer spray hole group emerges from one end of the first column component to form a front spray.

[0016] Furthermore, when the third outer spray hole group sprays forward, the second outer spray hole group axially away from the hose is connected to the inner spray hole group in a one-to-one correspondence.

[0017] Furthermore, the transition hole is one of the third outer spray hole group.

[0018] Furthermore, the transition hole is an axially extending strip hole, so that when the nozzle is turned, the turning spray holes in any direction are directly or indirectly connected to the transition hole.

[0019] Furthermore, the multiple inner spray holes included in the inner spray hole group are all strip holes arranged along the axial direction, so that when the nozzle is turned and the turning spray holes are in any direction, the first outer spray hole group and the inner spray hole group are connected one by one.

[0020] The beneficial effects of the present invention are as follows: the combined cleaning nozzle provided by the present application is installed at the front end of a hose for supplying high-pressure cleaning fluid, and comprises a barrel component, a first column component and a driving component connected in sequence, a second column component is arranged in the barrel component, the first column component and the second column component are connected by an axis, and while the driving component drives the first column component to rotate, the driving shaft moves axially in the first column component and drives the second column component to move axially in the barrel component, thereby realizing the switching of the working state of the combined cleaning nozzle, when the transition hole on the shaft is aligned with the steering hole on the first column component When the spray holes are connected, the inner spray hole group on the second column component is exactly connected one-to-one with the first outer spray hole group on the barrel component, so that the combined cleaning nozzle continues to move at the first speed in the pipe while turning, and the motor can be controlled to continue to drive the first column component to rotate to change the direction of the turning spray hole. When the third outer spray hole group on the shaft emerges from the first column component to form a front spray, the inner spray hole group on the second column component is exactly connected one-to-one with the second outer spray hole group on the barrel component, so that the combined cleaning nozzle cleans the inner circumference of the pipe while moving at the second speed in the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention when it is in a moving and turning state.

[0022] Figure 2 It is a structural schematic diagram of the present invention when it is in the moving and cleaning state.

[0023] Figure 3 It is a schematic diagram of the connection between the cylinder component and the second column component of the present invention.

[0024] Figure 4 This is a schematic diagram of the connection between the first column component and the shaft of the present invention.

[0025] Figure 5This is a structural schematic diagram of another embodiment of the present invention in a moving and turning state.

[0026] Figure 6 This is a structural schematic diagram of another embodiment of the present invention in a moving and cleaning state. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] like Figure 1-2 As shown, the present invention provides a combined cleaning nozzle that is mounted at the front end of a hose that supplies high-pressure cleaning fluid. The nozzle is equipped with a first flow channel section 41 that directly or indirectly connects to the hose, and a second flow channel section 331 that directly or indirectly connects to the first flow channel section 41. This allows high-pressure cleaning fluid to enter the first and second flow channels 41, 331 within the nozzle from the front end of the hose. Specifically, one end of the nozzle is provided with a fluid inlet that connects to the hose. The hose is inserted into the fluid inlet and sealedly connected to the nozzle.

[0029] The nozzle has a spray hole group that can be connected to the first flow channel section 41. When the spray hole group is connected to the first flow channel section 41, the high-pressure cleaning fluid entering the first flow channel section 41 is sprayed outward through the spray hole group and sprayed onto the inner circumferential surface of the pipe, thereby driving the nozzle to move inside the pipe through the reaction force of the high-pressure cleaning fluid spray.

[0030] The nozzle includes: a cylindrical component 1, a first cylindrical component 2 and a driving component 3, wherein the driving component 3 is connected to the cylindrical component 1, and the first cylindrical component 2 has a steering spray hole 21 that can be connected to the second flow channel section 331. When the steering spray hole 21 is connected to the second flow channel section 331, the high-pressure cleaning fluid entering the second flow channel section 331 is sprayed to one side through the steering spray hole 21 and sprayed on the inner circumferential surface of the pipe, thereby changing the movement direction of the nozzle inside the pipe through the reaction force of the high-pressure cleaning fluid injection.

[0031] The driving component 3 is connected to the first cylindrical component 2 and can drive the first cylindrical component 2 to rotate. When the steering nozzle 21 is connected to the second flow channel section 331, the driving component 3 drives the first cylindrical component 2 to rotate to achieve arbitrarily changing the direction of the steering nozzle 21, thereby allowing the nozzle to be turned in any direction.

[0032] The barrel part 1 has a first outer spray hole group 11 and a second outer spray hole group 12, wherein the first outer spray hole group 11 is composed of a plurality of first outer spray holes in a circumferential array on the side wall of the barrel part 1, and the second outer spray hole group 12 is composed of a plurality of second outer spray holes in a circumferential array on the side wall of the barrel part 1.

[0033] The nozzle further comprises: a second cylindrical component 4 axially movably mounted in the cylindrical component 1, wherein the second cylindrical component 4 axially movably mounted in the cylindrical component 1 is specifically: Figure 3 As shown, the outer wall of the second column component 4 is slidably connected to the inner wall of the cylinder component 1, and can slide axially in the cylinder component 1, and a limiting groove is provided on the inner wall of the cylinder component 1, and a limiting protrusion adapted to the limiting groove is provided on the outer wall of the second column component 4. The limiting protrusion is slidably connected in the limiting groove to limit the rotation of the second column component 4 in the cylinder component 1.

[0034] The second cylindrical component 4 has a first flow channel section 41 therein, and an inner spray hole group 42 therein, wherein the inner spray hole group 42 is composed of a plurality of inner spray holes arranged in a circumferential array on the side wall of the second cylindrical component 4 and connected to the first flow channel section 41. The driving component 3 is connected to the second cylindrical component 4 and can drive the second cylindrical component 4 to move axially within the barrel component 1 until the inner spray hole group 42 is connected to the first outer spray hole group 11 or the second outer spray hole group 12 in a one-to-one correspondence, thereby forming a spray hole group that causes the high-pressure cleaning fluid in the first flow channel section 41 to be ejected outwardly, and switches the high-pressure cleaning fluid between being ejected from the first outer spray hole group 11 and the second outer spray hole group 12. By setting different apertures or tilt angles for the first outer spray hole group 11 and the second outer spray hole group 12, the injection amount and injection angle of the high-pressure cleaning fluid relative to the inner circumference of the tube can be changed, thereby adjusting the movement speed of the nozzle inside the tube.

[0035] The driving component 3 includes: a motor 31, an output shaft 32 of the motor 31 and a shaft 33, wherein the motor 31 is fixedly mounted on one end of the cylindrical component 1, the output shaft 32 passes through the motor 31, and one end of the output shaft 32 is fixedly connected to the first column component 2 and can drive the first column component 2 to rotate.

[0036] One end of shaft 33 is fixedly connected to second cylindrical member 4, while the other end of shaft 33 is axially movable and extends through first cylindrical member 2. Shaft 33 has external threads, and output shaft 32 has a central hole extending therethrough. The central hole has internal threads, and shaft 33 fits through the central hole, with the internal threads mating with the external threads. This allows motor 31 to drive shaft 33 axially via output shaft 32, thereby driving second cylindrical member 4 axially via shaft 33.

[0037] The shaft 33 has a second flow channel section 331 in it, and a transition hole 332 connected to the second flow channel section 331 on the shaft 33. The shaft 33 can move to the transition hole 332 to directly or indirectly connect to the steering nozzle 21 so that the steering nozzle 21 connects to the second flow channel section 331, or the shaft 33 can move to the transition hole 332 to stagger with the steering nozzle 21. Figure 4 As shown, the inner wall of the first cylindrical component 2 is provided with an annular groove 22 connected to the steering spray hole 21, and the transition hole 332 is indirectly connected to the steering spray hole 21 through the annular groove 22. When the first cylindrical component 2 rotates in the state where the transition hole 332 is connected to the steering spray hole 21, the orientation of the steering spray hole 21 will change, so that the transition hole 332 may be coaxially connected to the steering spray hole 21 or staggered in the circumferential direction. When the transition hole 332 is coaxially connected to the steering spray hole 21, the high-pressure cleaning fluid in the second flow channel section 331 is directly ejected outward from the transition hole 332 to the steering spray hole 21 to deflect the nozzle. When the transition hole 332 is staggered in the circumferential direction from the steering spray hole 21, the high-pressure cleaning fluid in the second flow channel section 331 is ejected outward from the transition hole 332 to the steering spray hole 21 via the annular groove 22 to deflect the nozzle.

[0038] The shaft 33 has a third external spray hole group 333 connected to the second flow channel section 331. This group 333 consists of a plurality of third external spray holes arranged in a circumferential array on the sidewall of the shaft 33. The shaft 33 can be moved until the third external spray hole group 333 emerges from one end of the first cylindrical member 2. At this point, the high-pressure cleaning fluid in the second flow channel section 331 is ejected directly from the third external spray hole group 333 in a forward spray pattern, cleaning the inner circumference of the tube.

[0039] During the process of axial movement of the shaft 33 and the second cylindrical component 4 driven by the motor 31 through the output shaft 32: when the transition hole 332 is connected to the steering nozzle 21, the first outer nozzle hole group 11 axially close to the hose is connected one-to-one with the inner nozzle hole group 42, so that the nozzle continues to move at the first speed in the tube while turning; when the third outer nozzle hole group 333 sprays forward, the second outer nozzle hole group 12 axially away from the hose is connected one-to-one with the inner nozzle hole group 42, so that the nozzle moves at the second speed in the tube while cleaning the inner circumference of the tube.

[0040] The transition hole 332 is an axially extending strip-shaped hole, so that when the nozzle is turned, the steering nozzle 21 in any orientation is directly or indirectly connected to the transition hole 332. Specifically, when the motor 31 drives the shaft 33 to move axially through the output shaft 32 until the transition hole 332 is directly or indirectly connected to the steering nozzle 21, the motor 31 continues to drive the first cylindrical component 2 to rotate to change the orientation of the steering nozzle 21. At this time, the shaft 33 also continues to move axially synchronously under the drive of the motor 31. By setting the transition hole 332 as an axially extending strip-shaped hole, it is ensured that the transition hole 332 always maintains direct or indirect connection with the steering nozzle 21 during this process. Similarly, the multiple inner nozzles included in the inner nozzle group 42 are all axially arranged strip-shaped holes, so that when the nozzle is turned and the steering nozzle 21 is in any orientation, the first outer nozzle group 11 and the inner nozzle group 42 are all connected in a one-to-one correspondence.

[0041] As another preferred embodiment of the present application, Figure 5-6 As shown, the transition hole 332 is a third outer spray hole in the third outer spray hole group 333. Further, the transition hole 332 is specifically a strip hole extending axially from a third outer spray hole in the third outer spray hole group 333. Therefore, when the third outer spray hole group 333 is inside the second column part 4, the strip-shaped third outer spray hole is used as the transition hole 332. When the third outer spray hole group 333 emerges from the second column part 4, the strip-shaped third outer spray hole is used as the third outer spray hole, thereby effectively reducing the spatial position of the axial opening on the shaft 33, reducing the total length of the combined cleaning nozzle, and reducing the production cost.

[0042] When this application is working, there are two working states that can be switched between each other:

[0043] Since the shaft 33 is inserted into the center hole of the output shaft 32 and is threadedly connected to the output shaft 32, and the second column component 4 fixedly connected to one end of the shaft 33 cannot rotate in the cylindrical component 1, therefore, when the output shaft 32 of the motor 31 rotates, the shaft 33 located in the center hole rotates relative to the output shaft 32, and the shaft 33 moves axially in the center hole and the first column component 2 under the action of the internal thread and the external thread, and drives the second column component 4 to move axially in the cylindrical component 1. When the shaft 33 moves in the first cylindrical part 2 to the transition hole 332 and connects with the steering spray hole 21, the second cylindrical part 4 moves in the barrel part 1 just to the first outer spray hole group 11 axially close to the hose and connects with the inner spray hole group 42 in a one-to-one correspondence, so that the nozzle continues to move in the pipe at a first speed while turning, and the motor 31 can be controlled to continue to drive the first cylindrical part 2 to rotate to change the direction of the steering spray hole 21 according to the specific situation in the pipe. At this time, by arranging the transition hole 332 and the inner spray hole group 42 in a strip shape, it can be ensured that the transition hole 332 and the inner spray hole group 42 always maintain a one-to-one correspondence with the steering spray hole 21 and the first outer spray hole group 11. When the shaft 33 moves to the point where the third outer spray hole group 333 emerges from the first column part 2 to form a front spray, the second column part 4 moves in the barrel part 1 just to the point where the second outer spray hole group 12 axially away from the hose is connected to the inner spray hole group 42 in a one-to-one correspondence, so that the nozzle moves in the tube at the second speed while cleaning the inner circumference of the tube.

[0044] The above content is merely an example and explanation of the structure of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the scope of protection of the present invention.

Claims

1. A combined cleaning nozzle, mounted at the front end of a hose supplying a high-pressure cleaning fluid, moves inside a target pipe by the jet of the high-pressure cleaning fluid, and cleans the inside of the target pipe, characterized in that: The nozzle has a first flow channel section (41) that can be directly or indirectly connected to a hose and a second flow channel section (331) that is directly or indirectly connected to the first flow channel section (41). The nozzle has a spray hole group that can be connected to the first flow channel section (41) and allows the fluid in the first flow channel section (41) to be sprayed outward. The nozzle comprises: a barrel component (1), a first column component (2), and a driving component (3). The driving component (3) is connected to the barrel component (1). The first column component (2) has a steering spray hole (21) that can be connected to the second flow channel section (331). The driving component (3) is connected to the first column component (2). The driving component (3) can drive the first column component (2) to rotate so as to change the direction in which the steering spray hole (21) sprays fluid outward.

2. The combined cleaning nozzle according to claim 1, characterized in that: The barrel component (1) has a first outer spray hole group (11) and a second outer spray hole group (12), and the nozzle comprises: a second column component (4) axially movably mounted in the barrel component (1), the second column component (4) having a first flow channel section (41), the second column component (4) having an inner spray hole group (42), a driving component (3) connected to the second column component (4), and the driving component (3) can drive the second column component (4) to axially move in the barrel component (1) until the inner spray hole group (42) is connected to the first outer spray hole group (11) or the second outer spray hole group (12) in a one-to-one correspondence to form a spray hole group for spraying high-pressure cleaning fluid in the first flow channel section (41) outwardly, and the high-pressure cleaning fluid is switched between being sprayed by the first outer spray hole group (11) and being sprayed by the second outer spray hole group (12).

3. The combined cleaning nozzle according to claim 2, characterized in that: The driving component (3) comprises: a motor (31), an output shaft (32) of the motor (31), and a shaft (33); the output shaft (32) passes through the motor (31); a central hole is provided in the output shaft (32); the central hole has an internal thread; one end of the output shaft (32) is fixedly connected to the first column component (2) and can drive the first column component (2) to rotate; one end of the shaft (33) is fixedly connected to the second column component (4); the other end of the shaft (33) is axially movable and passes through the first column component (2); the shaft (33) with an external thread is adapted to pass through the central hole and the internal thread is matched with the external thread, so that the motor (31) can The output shaft (32) drives the shaft (33) to move axially, the shaft (33) has a second flow channel section (331) in it, and the shaft (33) has a transition hole (332) connected to the second flow channel section (331). The shaft (33) can move to the transition hole (332) to directly or indirectly connect to the steering nozzle (21) so that the steering nozzle (21) connects to the second flow channel section (331) or the transition hole (332) and the steering nozzle (21) are staggered. When the first column component (2) rotates when the transition hole (332) is connected to the steering nozzle (21), the direction of the steering nozzle (21) will change and the nozzle will be turned.

4. The combined cleaning nozzle according to claim 3, characterized in that: The transition hole (332) is indirectly connected to the steering spray hole (21) in particular: an annular groove (22) connected to the steering spray hole (21) is provided on the inner wall of the first column component (2), and the transition hole (332) is indirectly connected to the steering spray hole (21) via the annular groove (22).

5. The combined cleaning nozzle according to claim 3, characterized in that: When the transition hole (332) is connected to the steering spray hole (21), the first outer spray hole group (11) axially close to the hose is connected to the inner spray hole group (42) in a one-to-one correspondence.

6. The combined cleaning nozzle according to claim 4, characterized in that: The shaft (33) is provided with a third external spray hole group (333) connected to the second flow channel section (331), and the shaft (33) can be moved until the third external spray hole group (333) emerges from one end of the first column component (2) to form a front spray.

7. The combined cleaning nozzle according to claim 6, characterized in that: When the third outer spray hole group (333) sprays forward, the second outer spray hole group (12) axially away from the hose is connected to the inner spray hole group (42) in a one-to-one correspondence.

8. The combined cleaning nozzle according to claim 6, characterized in that: The transition hole (332) is one of the third outer spray hole group (333).

9. The combined cleaning nozzle according to claim 6, characterized in that: The transition hole (332) is an axially extending strip hole, so that when the nozzle is turned, the turning spray hole (21) in any direction is directly or indirectly connected to the transition hole (332).

10. The combined cleaning nozzle according to claim 9, characterized in that: The multiple inner spray holes included in the inner spray hole group (42) are all strip holes arranged along the axial direction, so that when the nozzle is turned and the turning spray hole (21) is in any direction, the first outer spray hole group (11) and the inner spray hole group (42) are connected in a one-to-one correspondence.

Images