A magnetically speed-regulating pipe cleaning nozzle

Abstract

This utility model discloses a magnetically speed-regulated pipe cleaning nozzle, comprising: a central shaft, a nozzle seat, a base, and a magnetic speed-regulating assembly. One end of the central shaft has a connecting port, and the other end is fitted with a sealing ring. The nozzle seat has several spray holes, and a sliding ring is rotatably mounted on the outer wall of the nozzle seat. The base is fitted onto the outside of the central shaft, and its outer wall is threadedly connected to a first mounting hole. The base contains a first mounting cavity and a second mounting cavity. The second mounting cavity is rotatably connected to the central shaft via several bearings. The magnetic speed-regulating assembly includes a magnetic ring, which is fixedly mounted on the central shaft. Several magnets are mounted on the magnetic ring, and a magnetic ring sheath is fitted around the magnetic ring. A copper ring is fixedly mounted on the inner wall of the first mounting cavity. This utility model can limit the nozzle's rotational speed, thereby preventing the nozzle from becoming uncontrollable due to excessive speed, and can also reduce the wear rate of the central shaft, extending the nozzle's service life.

Description

Technical Field

[0001] This utility model relates to the field of cleaning nozzle technology, and in particular to a magnetically speed-regulating pipe cleaning nozzle. Background Technology

[0002] Pipelines are widely used in industry. During the use of pipelines, deposits, dirt, or residues will form on the inner wall of the pipeline. Due to the deposition and adhesion of these deposits, dirt, or residues on the pipeline wall, the pipeline diameter gradually decreases. If they are not cleaned in a timely and effective manner, they will seriously affect the normal use of the pipeline.

[0003] High-pressure self-rotating cleaning nozzles utilize the centrifugal force and reaction force of water flow to propel the nozzle while spraying water and rotating to clean the inner walls of pipes. However, existing self-rotating cleaning nozzles lack a speed-limiting mechanism. During use, if the nozzle's rotation speed is too high, it can become uncontrollable, far exceeding the normal operating speed, causing a "runaway" phenomenon. This not only hinders cleaning but also makes the nozzle's central shaft more prone to wear, shortening the nozzle's lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a magnetically speed-regulating pipe cleaning nozzle that can limit the nozzle's rotation speed, thereby preventing the nozzle from going out of control due to excessive rotation speed, and can also reduce the wear rate of the central shaft and extend the nozzle's service life.

[0005] To achieve the above and other related objectives, this utility model provides a magnetically speed-regulated pipe cleaning nozzle, comprising: a central shaft, a nozzle holder, a base, and a magnetic speed-regulating assembly. One end of the central shaft has a connecting port, and the other end of the central shaft is fitted with a sealing ring. A first channel is provided inside the central shaft along its extension direction. One end of the nozzle holder is spherical, and a plurality of spray holes are provided on the spherical surface of the nozzle holder. The plurality of spray holes are eccentrically arranged, and a nozzle is fixedly installed in each spray hole. A sliding ring is rotatably installed on the outer wall of the nozzle holder on the side away from the spray hole. A second channel is provided inside the nozzle holder, and the plurality of spray holes are respectively connected to the second channel. The end of the second channel away from the spray hole is connected to the... The sealing ring is threaded, and the first channel mates with the second channel; the base is sleeved on the outside of the central shaft, and the outer wall of the base is threadedly connected to the first mounting hole at the end of the nozzle seat away from the nozzle hole. The base has a first mounting cavity at the end facing the nozzle hole and a second mounting cavity at the end away from the nozzle hole. The second mounting cavity is rotatably connected to the central shaft through several bearings; the magnetic speed regulating assembly includes a magnetic ring, which is fixedly installed on the outer wall of the central shaft located in the first mounting cavity. Several magnets are installed on the magnetic ring, and a magnetic ring sleeve is sleeved around the magnetic ring. A copper ring is fixedly installed on the inner wall of the first mounting cavity, and the copper ring mates with the magnetic ring sleeve.

[0006] In one example of the magnetic speed-regulating pipe cleaning nozzle of this utility model, a first annular protrusion is provided on the outer wall of the central shaft facing the connection port. The end of the base abuts against the first annular protrusion. The inner wall of the base facing the first annular protrusion is sealed to the outer wall of the central shaft by a water seal.

[0007] In one example of the magnetic speed-regulating pipe cleaning nozzle of this utility model, a plurality of magnet mounting slots are evenly distributed on the outer wall of the magnetic ring, and a magnet is installed in each magnet mounting slot. One end of the magnetic ring abuts against the end face of one of the bearings, and the other end of the magnetic ring abuts against the anti-detachment component. The anti-detachment component is detachably and fixedly installed on the outer wall of the central shaft.

[0008] In one example of the magnetic speed-regulating pipe cleaning nozzle of this utility model, the anti-detachment component includes an anti-detachment ring, two retaining rings, and a first retaining spring. The central shaft is provided with a first mounting groove and a second mounting groove. The two retaining rings are semi-circular rings and are installed in the first mounting groove. The anti-detachment ring is sleeved on the outside of the two retaining rings. The first retaining spring is installed in the second mounting groove. The ends of the two retaining rings away from the anti-detachment ring abut against the end face of the magnetic ring. The first retaining spring abuts against the end face of the anti-detachment ring away from the retaining ring.

[0009] In one example of the magnetic speed-regulating pipe cleaning nozzle of this utility model, a second mounting hole is provided at the end of the second channel away from the nozzle, and the sealing ring is threadedly connected to the second mounting hole.

[0010] In one example of the magnetic speed-regulating pipe cleaning nozzle of this utility model, a spacer is provided at the end of the first mounting cavity away from the second mounting cavity. One end of the spacer abuts against the end face of the copper ring, and the other end of the spacer abuts against the inner wall of the nozzle seat. The spacer is sleeved on the outside of the central shaft and is sealed to the central shaft by an oil seal.

[0011] In one example of the magnetic speed-regulating pipe cleaning nozzle of this utility model, a second retaining spring is installed on the inner wall of the first mounting hole away from the nozzle, and a second annular boss is provided on the outer wall of the threaded part of the base away from the nozzle, and the second retaining spring abuts against the second annular boss.

[0012] In one example of the magnetic speed-regulating pipe cleaning nozzle of this utility model, the nozzle base is provided with a slip ring mounting part, the slip ring is sleeved on the outside of the slip ring mounting part, the end of the slip ring facing the nozzle hole abuts against the outer wall of the nozzle base, the end of the slip ring away from the nozzle hole is slidably connected with a retaining ring, the retaining ring is sleeved on the outside of the base, and a third retaining spring is installed on the outer wall of the base. The two end faces of the retaining ring abut against the nozzle base and the third retaining spring, respectively.

[0013] In one example of the magnetic speed-regulating pipe cleaning nozzle of this utility model, the plurality of spray holes include a plurality of first spray holes and a plurality of second spray holes. The plurality of first spray holes are disposed on the end face of the nozzle seat away from the base. Each first spray hole is equipped with a first nozzle, and the spray direction of the first nozzle is towards the side away from the base. The plurality of second spray holes are disposed on the side wall of the nozzle seat facing the slip ring. Each second spray hole is equipped with a second nozzle, and the spray direction of the second nozzle is towards the slip ring.

[0014] This invention relates to a magnetically speed-regulated pipe cleaning nozzle that connects to a high-pressure water pipe via a connector at the end of a central shaft. High-pressure water enters through this connector, passes through a first and second channel, and then exits from nozzles within several spray holes. The outer wall of a slip ring contacts the inner wall of the pipe. The water jets from the eccentrically positioned nozzles drive the nozzle holder and base to rotate, achieving a self-rotation function. A sealing ring effectively improves the sealing performance at the connection between the central shaft and the nozzle holder. The magnetic speed-regulating component controls the rotational speed of the nozzle holder and base. According to the law of electromagnetic induction, when the base drives the copper ring to rotate, the magnetic field intersects with the copper ring, generating eddy currents. These eddy currents produce a magnetic field with the opposite direction of change to the original magnetic field, thus applying a resistance torque to the rotating copper ring and affecting the rotational speed of the base and nozzle holder, preventing loss of control due to excessive speed. This invention limits the nozzle's rotational speed, preventing it from becoming uncontrollable due to excessive speed, and also reduces the wear rate of the central shaft, extending the nozzle's service life. Attached Figure Description

[0015] Figure 1 This is a perspective view of an embodiment of the magnetically speed-regulating pipe cleaning nozzle of this utility model;

[0016] Figure 2 A cross-sectional view of an embodiment of the magnetic speed-regulating pipe cleaning nozzle of this utility model. Figure 1 ;

[0017] Figure 3 A cross-sectional view of an embodiment of the magnetic speed-regulating pipe cleaning nozzle of this utility model. Figure 2 ;

[0018] Figure 4 This is a cross-sectional view of the nozzle seat and base in one embodiment of the magnetic speed-regulating pipe cleaning nozzle of this utility model.

[0019] Figure 5 This is a schematic diagram of the magnetic ring structure in one embodiment of the magnetically speed-regulating pipe cleaning nozzle of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the magnetic ring and the central shaft in one embodiment of the magnetic speed-regulating pipe cleaning nozzle of this utility model;

[0021] Figure 7 This is a schematic diagram of the central shaft structure in one embodiment of the magnetic speed-regulating pipe cleaning nozzle of this utility model;

[0022] Figure 8 This is a schematic diagram of the central shaft and anti-detachment component in one embodiment of the magnetic speed-regulating pipe cleaning nozzle of this utility model.

[0023] Figure 9 This is a perspective view of the nozzle base in one embodiment of the magnetic speed-regulating pipe cleaning nozzle of this utility model;

[0024] Figure 10 This is a cross-sectional view of the nozzle base in one embodiment of the magnetic speed-regulating pipe cleaning nozzle of this utility model.

[0025] Component designation:

[0026] 100 Central shaft; 110 Connecting port; 120 Sealing ring; 130 First channel; 140 First annular boss; 150 Water seal; 160 First mounting groove; 170 Second mounting groove; 200 Nozzle holder; 210 Spray hole; 211 First spray hole; 212 Second spray hole; 220 Nozzle; 230 Slip ring; 231 Slip ring mounting part; 240 Second channel; 250 First mounting hole; 260 Second mounting hole; 270 Second... Snap ring; 300 Base; 310 First mounting cavity; 320 Second mounting cavity; 330 Second annular boss; 340 Retaining ring; 350 Third snap ring; 400 Magnetic speed regulating assembly; 410 Magnetic ring; 411 Magnet mounting slot; 420 Magnet; 430 Magnetic ring sleeve; 440 Copper ring; 450 Spacer; 460 Oil seal; 500 Anti-drop assembly; 510 Anti-drop ring; 520 Snap ring; 530 First snap ring; 600 Bearing. Detailed Implementation

[0027] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0028] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.

[0029] Please see Figures 1 to 10This utility model provides a magnetic speed-regulating pipe cleaning nozzle, which includes: a central shaft 100, a nozzle seat 200, a base 300 and a magnetic speed-regulating assembly 400. One end of the central shaft 100 is provided with a connection port 110, and the other end of the central shaft 100 is fitted with a sealing ring 120. A first channel 130 is provided inside the central shaft 100 along the extending direction of the central shaft 100. One end of the nozzle holder 200 is spherical, and a plurality of nozzle holes 210 are provided on the spherical surface of the nozzle holder 200. The plurality of nozzle holes 210 are eccentrically arranged, and a nozzle 220 is fixedly installed in each nozzle hole 210. A slip ring 230 is rotatably installed on the outer wall of the nozzle holder 200 away from the nozzle holes 210. A second channel 240 is provided inside the nozzle holder 200, and the plurality of nozzle holes 210 are respectively connected to the second channel 240. The end of the second channel 240 away from the nozzle holes 210 is threadedly connected to the sealing ring 120. The first channel 130 cooperates with the second channel 240. The base 300 is sleeved on the outside of the central shaft 100. The outer wall of the base 300 is threadedly connected to the first mounting hole 250 at the end of the nozzle seat 200 away from the nozzle 210. A first mounting cavity 310 is provided inside the base 300 facing the nozzle 210, and a second mounting cavity 320 is provided inside the base 300 at the end away from the nozzle 210. The second mounting cavity 320 is rotatably connected to the central shaft 100 through several bearings 600. The magnetic speed regulating assembly 400 includes a magnetic ring 410, which is fixedly installed on the outer wall of the central shaft 100 located in the first mounting cavity 310. Several magnets 420 are installed on the magnetic ring 410, and a magnetic ring sleeve 430 is sleeved around the magnetic ring 410. A copper ring 440 is fixedly installed on the inner wall of the first mounting cavity 310, and the copper ring 440 cooperates with the magnetic ring sleeve 430.

[0030] This invention connects to a high-pressure water pipe via a connection port 110 at the end of the central shaft 100. High-pressure water enters through the connection port 110, then passes through the first channel 130 and the second channel 240, before exiting from nozzles 220 within a plurality of spray holes 210. The outer wall of the slip ring 230 contacts the inner wall of the pipe. The water jets from the eccentrically arranged nozzles 220 drive the nozzle seat 200 and base 300 to rotate, achieving a self-rotation function. The sealing ring 120 effectively improves the sealing performance at the connection between the central shaft 100 and the nozzle seat 200. The magnetic speed regulating component 400 controls the rotational speed of the nozzle seat 200 and base 300. According to the law of electromagnetic induction, when the base 300 drives the copper ring 440 to rotate, the magnetic field intersects with the copper ring 440, generating eddy currents. These eddy currents generate a magnetic field with a direction opposite to the original magnetic field, thus applying a resistance torque to the rotating copper ring 440, thereby affecting the rotational speed of the base 300 and nozzle seat 200 and preventing loss of control due to excessive speed.

[0031] Please see Figure 2 and Figure 3 In one example of the magnetic speed-regulating pipe cleaning nozzle of this utility model, a first annular boss 140 is provided on the outer wall of the central shaft 100 facing the connection port 110. The end of the base 300 abuts against the first annular boss 140. The inner wall of the end of the base 300 facing the first annular boss 140 is sealed to the outer wall of the central shaft 100 through a water seal 150.

[0032] Please see Figures 5 to 8 In one example of the magnetic speed-regulating pipe cleaning nozzle of this utility model, a plurality of magnet mounting slots 411 are evenly distributed on the outer wall of the magnetic ring 410, and a magnet 420 is installed in each magnet mounting slot 411. One end of the magnetic ring 410 abuts against the end face of a bearing 600, and the other end of the magnetic ring 410 abuts against the anti-detachment component 500. The anti-detachment component 500 is detachably and fixedly installed on the outer wall of the central shaft 100. The anti-detachment assembly 500 includes an anti-detachment ring 510, two retaining rings 520, and a first retaining spring 530. The central shaft 100 has a first mounting groove 160 and a second mounting groove 170. The two retaining rings 520 are semi-circular and are installed within the first mounting groove 160. The anti-detachment ring 510 is sleeved on the outside of the two retaining rings 520. The first retaining spring 530 is installed within the second mounting groove 170. The ends of the two retaining rings 520 away from the anti-detachment ring 510 abut against the end face of the magnetic ring 410. The first retaining spring 530 abuts against the end face of the anti-detachment ring 510 away from the retaining rings 520. The anti-detachment assembly 500 allows for easy installation and removal of the magnetic ring 410.

[0033] Please see Figures 2 to 4 In one example of the magnetically speed-regulating pipe cleaning nozzle of this utility model, the second channel 240 has a second mounting hole 260 at the end away from the nozzle 210, and the sealing ring 120 is threadedly connected to the second mounting hole 260. A spacer 450 is provided in the first mounting cavity 310 at the end away from the second mounting cavity 320. One end of the spacer 450 abuts against the end face of the copper ring 440, and the other end of the spacer 450 abuts against the inner wall of the nozzle seat 200. The spacer 450 is sleeved on the outside of the central shaft 100, and the spacer 450 is sealed to the central shaft 100 by an oil seal 460. A second retaining spring 270 is installed on the inner wall of the first mounting hole 250 at the end away from the nozzle 210. A second annular boss 330 is provided on the outer wall of the threaded portion of the base 300 on the side away from the nozzle 210, and the second retaining spring 270 abuts against the second annular boss 330.

[0034] Please see Figure 4 and Figure 9 In one example of the magnetic speed-regulating pipe cleaning nozzle of this utility model, the nozzle base 200 is provided with a slip ring mounting part 231, the slip ring 230 is sleeved on the outside of the slip ring mounting part 231, the end of the slip ring 230 facing the nozzle hole 210 abuts against the outer wall of the nozzle base 200, and the end of the slip ring 230 away from the nozzle hole 210 is slidably connected to the retaining ring 340. The retaining ring 340 is sleeved on the outside of the base 300, and a third retaining spring 350 is installed on the outer wall of the base 300. The two end faces of the retaining ring 340 abut against the nozzle base 200 and the third retaining spring 350, respectively.

[0035] Please see Figure 2 and Figure 3 In one example of the magnetically speed-regulating pipe cleaning nozzle of this utility model, the plurality of spray holes 210 include a plurality of first spray holes 211 and a plurality of second spray holes 212. The plurality of first spray holes 211 are disposed on the end face of the nozzle holder 200 away from the base 300, and each first spray hole 211 houses a first nozzle, the spray direction of which is towards the side away from the base 300. The plurality of second spray holes 212 are disposed on the sidewall of the nozzle holder 200 facing the slip ring 230, and each second spray hole 212 houses a second nozzle, the spray direction of which is towards the slip ring 230. The different directions of the first spray holes 211 and the second spray holes 212 can improve cleaning efficiency.

[0036] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A magnetically speed-regulating pipe cleaning nozzle, characterized in that, include: A central shaft, one end of which is provided with a connection port, and the other end of which is fitted with a sealing ring, and a first channel is provided inside the central shaft along the extension direction of the central shaft; A nozzle holder, one end of which is spherical, has a plurality of spray holes on its spherical surface, the plurality of spray holes being eccentrically arranged, and a nozzle being fixedly installed in each spray hole. A slip ring is rotatably installed on the outer wall of the nozzle holder on the side away from the spray hole. A second channel is provided inside the nozzle holder, and the plurality of spray holes are respectively connected to the second channel. The end of the second channel away from the spray hole is threadedly connected to the sealing ring. The first channel and the second channel cooperate with each other. The base is sleeved on the outside of the central shaft. The outer wall of the base is threadedly connected to the first mounting hole at the end of the nozzle seat away from the spray hole. The base has a first mounting cavity at the end facing the spray hole and a second mounting cavity at the end away from the spray hole. The second mounting cavity is rotatably connected to the central shaft through several bearings. A magnetic speed regulating assembly includes a magnetic ring, which is fixedly installed on the outer wall of the central shaft located in the first mounting cavity. Several magnets are installed on the magnetic ring, and a magnetic ring sleeve is fitted around the magnetic ring. A copper ring is fixedly installed on the inner wall of the first mounting cavity, and the copper ring cooperates with the magnetic ring sleeve.

2. The magnetically speed-regulating pipe cleaning nozzle as described in claim 1, characterized in that, The outer wall of the central shaft facing the connection port is provided with a first annular protrusion. The end of the base abuts against the first annular protrusion. The inner wall of the base facing the first annular protrusion is sealed to the outer wall of the central shaft by a water seal.

3. The magnetically speed-regulating pipe cleaning nozzle as described in claim 1, characterized in that, The outer wall of the magnetic ring is evenly distributed with several magnet mounting slots, and a magnet is installed in each magnet mounting slot. One end of the magnetic ring abuts against the end face of one of the bearings, and the other end of the magnetic ring abuts against the anti-detachment component. The anti-detachment component is detachably and fixedly installed on the outer wall of the central shaft.

4. The magnetically speed-regulating pipe cleaning nozzle as described in claim 3, characterized in that, The anti-detachment component includes an anti-detachment ring, two retaining rings, and a first retaining spring. The central shaft is provided with a first mounting groove and a second mounting groove. The two retaining rings are semi-circular rings and are installed in the first mounting groove. The anti-detachment ring is sleeved on the outside of the two retaining rings. The first retaining spring is installed in the second mounting groove. The ends of the two retaining rings away from the anti-detachment ring abut against the end face of the magnetic ring. The first retaining spring abuts against the end face of the anti-detachment ring away from the retaining ring.

5. The magnetically speed-regulating pipe cleaning nozzle as described in claim 1, characterized in that, The second channel has a second mounting hole at the end away from the nozzle, and the sealing ring is threadedly connected to the second mounting hole.

6. The magnetically speed-regulating pipe cleaning nozzle as described in claim 1, characterized in that, A spacer ring is provided at the end of the first mounting cavity away from the second mounting cavity. One end of the spacer ring abuts against the end face of the copper ring, and the other end of the spacer ring abuts against the inner wall of the nozzle seat. The spacer ring is sleeved on the outside of the central shaft and is sealed to the central shaft by an oil seal.

7. The magnetically speed-regulating pipe cleaning nozzle as described in claim 1, characterized in that, A second retaining spring is installed on the inner wall of the first mounting hole at the end away from the spray hole, and a second annular boss is provided on the outer wall of the threaded part of the base away from the spray hole, and the second retaining spring abuts against the second annular boss.

8. The magnetically speed-regulating pipe cleaning nozzle as described in claim 1, characterized in that, The nozzle holder is provided with a slip ring mounting part. The slip ring is sleeved on the outside of the slip ring mounting part. The end of the slip ring facing the nozzle abuts against the outer wall of the nozzle holder. The end of the slip ring away from the nozzle is slidably connected to a retaining ring. The retaining ring is sleeved on the outside of the base. A third retaining ring is installed on the outer wall of the base. The two end faces of the retaining ring abut against the nozzle holder and the third retaining ring, respectively.

9. The magnetically speed-regulating pipe cleaning nozzle as described in claim 1, characterized in that, The plurality of spray holes include a plurality of first spray holes and a plurality of second spray holes. The plurality of first spray holes are disposed on the end face of the nozzle holder away from the base. Each first spray hole contains a first spray head, and the spray direction of the first spray head is toward the side away from the base. The plurality of second spray holes are disposed on the side wall of the nozzle holder toward the slip ring. Each second spray hole contains a second spray head, and the spray direction of the second spray head is toward the slip ring.

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