CN111167626A - High-pressure water rotary nozzle with drainage structure design - Google Patents
High-pressure water rotary nozzle with drainage structure design Download PDFInfo
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- CN111167626A CN111167626A CN202010110592.8A CN202010110592A CN111167626A CN 111167626 A CN111167626 A CN 111167626A CN 202010110592 A CN202010110592 A CN 202010110592A CN 111167626 A CN111167626 A CN 111167626A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
- B05B3/0409—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0433—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided exclusively with fluid jets as cleaning tools
Abstract
The invention relates to the technical field of industrial cleaning, in particular to a high-pressure water rotary nozzle with a drainage structure design. The high-pressure water rotary sprayer comprises a water inlet joint, a sealing rod, a high-pressure rotary sealing assembly, a limiting part, a sealing blind plug and a rotary head. The invention has simple and unique structure, safer and more reliable operation in a high-pressure state and longer service life; the manufacturing cost and the use cost are greatly reduced; high-pressure water inflow is ingeniously led into the rotating head at the foremost end of the spray head, and the cleaning effect and the efficiency are greatly improved. All easily damaged parts can be replaced independently, and the maintenance is very convenient.
Description
Technical Field
The invention relates to the technical field of industrial cleaning, in particular to a high-pressure water rotary nozzle with a drainage structure design.
Background
The high-pressure water rotary nozzle is an efficient water jet cleaning tool, and the shape, size, pressure resistance grade and internal structure of the high-pressure water rotary nozzle are mainly determined by the structural size of a cleaning object, the physical performance of scabbing or dirt and construction quality requirements. When the pipeline with smaller inner diameter is cleaned to be scabbed or dirty, the outer diameter of the high-pressure rotary spray head is extremely strictly limited, on one hand, the safety and the reliability of the operation of the high-pressure rotary spray head are considered, and on the other hand, the use effect, the cleaning efficiency, the manufacturing cost, the use cost and the like of the high-pressure rotary spray head are considered, and the key factors are all not necessary.
Limited by size, a high-pressure water rotary sprayer with a smaller outer diameter, such as an outer diameter of 10-25 mm, usually does not have a bearing model with a proper size for selection, and therefore, how to balance axial force and radial force generated by the rotary sprayer in a high-pressure rotating state? How to reduce rotational friction resistance and noise? How is the rotational speed controlled? How to control the reasonable leakage of the high pressure seal? How to ensure the mechanical performance of key parts under high pressure, and the like, are key technical problems that designers must solve.
The first inventor of the present invention has been dedicated to research and development work of accessories and cleaning tools around high pressure water cleaning equipment since 2002, and during the research and development work, the first inventor has come to manufacturers in developed countries such as europe and the united states and international large-scale exhibitions for field investigation, visit, study, technical communication, etc. In 2018, in 5 months, the first inventor of the present invention also participated in the international conference on high pressure water jet cleaning standards held in munich, germany on behalf of the china association for industrial cleaning.
The rotating head is an open-circuit pioneer in the high-pressure water rotating nozzle and is also an extremely fragile part, and the main function of the rotating head is to convert high-pressure water into mechanical energy with cutting and crushing capabilities. It has been found that the cleaning effect, efficiency or the striking force of the high-pressure water jet is best only when the rotary head is in the foremost position of the spray head.
Disclosure of Invention
How to balance the axial and radial forces generated by the spinner in a high-pressure rotating state? How to reduce rotational friction resistance and noise? How is the rotational speed controlled? How to control the reasonable leakage of the high pressure seal? How to ensure the mechanical performance of key parts and components in a high-pressure state and the like, in order to solve the technical problems, the invention provides the high-pressure water rotary sprayer with the drainage structure design.
The technical scheme of the invention is as follows:
a high-pressure water rotary spray nozzle designed by a drainage structure comprises a water inlet joint 1, a sealing rod 2, a high-pressure rotary sealing assembly, a limiting part 6, a sealing blind plug 8 and a rotary head 9, wherein a through hole is formed in the sealing rod 2, and two or more drainage channels are formed in the high-pressure rotary sealing assembly; high-pressure water flows into the water inlet joint 1 and enters the inner cavity of the rotating head 9 through the through hole in the sealing rod 2 and the drainage channel in the high-pressure rotary sealing assembly; the rotating head 9 is provided with an eccentric jet hole, and when high-pressure water is jetted from the eccentric jet hole, the rotating head 9 and the high-pressure rotary sealing assembly rotate around the sealing rod 2 at a high speed; the rotary head 9 is connected with the high-pressure rotary sealing assembly through a connecting thread 12, a stepped through hole is formed in the central axis direction of the high-pressure rotary sealing assembly, a sealing blind plug 8 penetrates from the front end of the high-pressure rotary sealing assembly and is fixed in the stepped through hole in the front end of the high-pressure rotary sealing assembly, and a sealing rod 2 penetrates from the rear end of the high-pressure rotary sealing assembly and is clamped in the stepped through hole in the rear end of the high-pressure rotary sealing assembly through a limiting part 6; a gap seal is adopted between the cylindrical surface at the front end of the sealing rod 2 and the inner hole at the rear end of the high-pressure rotary sealing component, one end of leakage water generated by the gap seal is led out from a water drain hole 16 at the side surface of the high-pressure rotary sealing component, and the other end of the leakage water is led out from an annular gap 19 formed between the front end of the water inlet joint 1 and the rear end of the high-pressure rotary sealing component; by combining the drainage channel, the sealing blind plug 8 and the limiting part 6, high-pressure water flowing into the water inlet joint 1 is introduced into the inner cavity of the front-end rotating head 9 through the through hole in the sealing rod 2, so that high-efficiency conversion of high-pressure water energy is realized, and jet impact force is greatly improved; in addition, because the drainage structure and the gap sealing technology are skillfully adopted, radial force and axial force generated in the process that high-pressure water flows through the whole channel are mutually offset or released among all parts in the high-pressure water rotary sprayer designed by the drainage structure, and meanwhile, overflow water generated by gap sealing forms a layer of protective film between the rotary high-pressure rotary sealing assembly and the non-rotary sealing rod as well as the end face of the water inlet connector to play a certain role in lubrication and support, so that no bearing is required to be installed.
Preferably, the high-pressure rotary sealing assembly comprises a shell 4 and a high-pressure rotary sealing sleeve 5, the shell 4 and the high-pressure rotary sealing sleeve 5 are assembled into a whole after interference fit, eccentric spray holes are processed on the shell 4 and the high-pressure rotary sealing sleeve 5, a rotating head 9 is in threaded connection with the front end of the high-pressure rotary sealing sleeve 5 through a connecting thread 12, a stepped through hole is arranged in the direction of the central axis of the high-pressure rotary sealing sleeve 5, a sealing blind plug 8 penetrates from the front end of the high-pressure rotary sealing sleeve 5 and is fixed in the stepped through hole at the front end of the high-pressure rotary sealing sleeve 5, a sealing rod 2 penetrates from the rear end of the high-pressure rotary sealing sleeve 5 and is clamped in the stepped through hole at the rear end of the high-pressure rotary sealing sleeve 5 through a limiting part 6, gap sealing is adopted between the cylindrical surface at the front end of the sealing rod 2 and, the other end of the leakage water is led out from an annular gap 19 formed between the front end of the water inlet joint 1 and the rear ends of the shell 4 and the high-pressure rotary sealing sleeve 5.
Preferably, in order to prevent the high-pressure water introduced into the inner cavity of the rotary head from reversely flowing out of the water discharge hole, a sealing blind plug 8 is arranged at the stepped through hole inside the front end of the high-pressure rotary sealing sleeve 5.
Preferably, the limiting part 6 is fixed at the front end of the sealing rod 2 in a threaded connection mode, and the outer diameter of the limiting surface of the limiting part 6 is slightly larger than the outer diameter of the cylindrical surface at the front end of the sealing rod 2 and the size of the inner hole at the rear end of the high-pressure rotary sealing sleeve 5 in clearance fit with the cylindrical surface, so that the axial positions of the high-pressure rotary sealing sleeve 5 and the sealing rod 2 are limited, and the high-pressure rotary sealing assembly and the rotating head 9 are prevented from being separated from the sealing rod 2.
Preferably, a drainage channel 13, a drainage channel 14 and a drainage channel 15 are arranged in the high-pressure rotary sealing assembly, the drainage channel 13 and the drainage channel 15 are of porous structures, and the drainage channel 14 is of a groove structure.
Preferably, the high-pressure rotary sealing component is a housing 22, a drain hole is formed in the housing 22, a drainage channel 23 and a drainage channel 24 are arranged in the housing 22, the drainage channel 23 is of an annular groove structure, the drainage channel 24 is of a slender through hole structure, and the drainage channel 24 directly introduces high-pressure water into an inner cavity of the rotary head 9 through the drainage channel 23.
Preferably, a stepped hole is formed in the water inlet joint 1, a circular step is formed at the rear end of the sealing rod 2, and the sealing rod 2 penetrates through the rear end of the water inlet joint 1 and is fixed in the stepped hole in the water inlet joint 1.
Preferably, the water inlet connector 1 and the sealing rod 2 can be directly manufactured as one piece.
The limiting part is one of components with limiting functions, such as an inner hexagonal screw, a straight screw, a cross screw, a snap ring and the like.
The invention has the beneficial effects that: the novel drainage structure is mainly used for cleaning scars and dirt of pipelines, fills up domestic and foreign blank, has comprehensive performance indexes reaching or exceeding the prior technical level of international similar products, and has the following remarkable advantages compared with the prior similar products at home and abroad: the invention has simple and unique structure, safer and more reliable operation in a high-pressure state and longer service life; the manufacturing cost and the use cost are greatly reduced; high-pressure water inflow is ingeniously led into the rotating head at the foremost end of the spray head, and the cleaning effect and the efficiency are greatly improved. All easily damaged parts can be replaced independently, and the maintenance is very convenient.
Drawings
Fig. 1 is a sectional view of a high pressure water rotary sprayer designed by a drainage structure of the invention.
Fig. 2 is a cross-sectional view of another structure of the present invention.
Wherein:
1-water inlet joint; 2-sealing rod; 3-sealing ring; 4-a housing; 5-high pressure rotary sealing sleeve;
6-limiting parts; 7-O-shaped rings; 8-sealing blind plugging; 9-rotating the head;
10-rotating head spray orifice; 11-rotating head lumen; 12-connecting screw threads; 13-drainage channel
14-a drainage channel; 15-a drainage channel; 16-a drain hole; 17-a through hole;
18-a through hole; 19-annular gap; 20-water inlet joint jet hole;
21-water inlet joint connecting screw thread; 22-a housing; 23-drainage channel 24-drainage channel
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
all features disclosed in this specification may be combined in any combination, except features that are mutually exclusive.
This specification includes any features disclosed in the appended claims, abstract and drawings, which are, unless expressly stated otherwise, replaceable with other equivalent or similarly purposed alternative features. Unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Example 1
The high-pressure water rotary spray nozzle designed by the drainage structure comprises a water inlet joint 1, a sealing rod 2, a sealing ring 3, a shell 4, a high-pressure rotary sealing sleeve 5, a limiting part 6, an O-shaped ring 7, a sealing blind plug 8 and a rotating head 9, wherein a through hole 17 and a through hole 18 are formed in the sealing rod 2, and the shell 4 and the high-pressure rotary sealing sleeve 5 are assembled in an interference fit mode to form a component, which is referred to as a high-pressure rotary sealing assembly. A drainage channel 13, a drainage channel 14 and a drainage channel 15 are arranged in the high-pressure rotary sealing assembly, the drainage channel 13 and the drainage channel 15 are of porous structures, and the drainage channel 14 is of a groove structure.
High-pressure water flows into the water inlet joint 1 and enters the inner cavity 11 of the rotating head 9 after passing through the through hole 17 and the through hole 18 in the sealing rod 2, the drainage channel 15, the drainage channel 14 and the drainage channel 13 in the high-pressure rotary sealing assembly; eccentric injection holes are formed in the rotating head 9 and/or the shell 4 and the high-pressure rotary sealing sleeve 5, and when high-pressure water is injected from the eccentric injection holes, the rotating head 9 and the high-pressure rotary sealing assembly rotate around the sealing rod 2 at a high speed.
The rotating head 9 passes through connecting thread 12 and 5 front end threaded connection of high pressure rotary seal cover, 5 the central axis direction of high pressure rotary seal cover has cascaded through-hole, the blind stifled 8 of the sealed of O shape circle 7 that is equipped with penetrates and is fixed in the cascaded through-hole of 5 front ends of high pressure rotary seal cover from 5 front ends of high pressure rotary seal cover, sealing washer 3 covers in 2 roots of sealing rod, sealing rod 2 penetrates and is blocked in the cascaded through-hole of 5 rear ends of high pressure rotary seal cover through spacing spare part 6 from 5 rear ends of high pressure rotary seal cover. A gap seal is adopted between the cylindrical surface at the front end of the sealing rod 2 and the inner hole at the rear end of the high-pressure rotary sealing sleeve 5, one end of leakage water generated by the gap seal is led out from a water drain hole 16 on the side surface of the high-pressure rotary sealing component, and the other end of the leakage water is led out from an annular gap 19 formed between the front end of the water inlet joint 1 and the rear end of the high-pressure rotary sealing component.
By combining the drainage channel 13, the drainage channel 14, the drainage channel 15, the sealing blind plug 8 and the limiting part 6, high-pressure water flowing into the water inlet joint 1 is skillfully introduced into the inner cavity 11 of the front-end rotating head 9 through the through hole 17 and the through hole 18 in the sealing rod 2, so that high-efficiency conversion of high-pressure water energy is realized, and jet hitting force is greatly improved; in addition, because the drainage structure and the gap sealing technology are skillfully adopted, radial force and axial force generated in the process that high-pressure water flows through the whole channel are mutually offset or released among parts in the high-pressure water rotating nozzle designed by the drainage structure, and meanwhile, overflow water generated by gap sealing forms a layer of protective film between the rotating high-pressure rotating sealing sleeve 5 and the end faces of the non-rotating sealing rod 2 and the water inlet joint 1 to play a certain role in lubrication and support, so that no bearing is required to be installed.
In order to prevent the high-pressure water introduced into the inner cavity of the rotary head from reversely flowing out of the water discharge hole, a sealing blind plug 8 is arranged at a stepped through hole in the front end of the high-pressure rotary sealing sleeve 5.
The limiting part 6 is fixed at the front end of the sealing rod 2 in a threaded connection mode, and the outer diameter of the limiting surface of the limiting part 6 is slightly larger than the outer diameter of the cylindrical surface at the front end of the sealing rod 2 and the size of the inner hole at the rear end of the high-pressure rotary sealing sleeve 5 in clearance fit with the cylindrical surface, so that the effect of limiting the axial positions of the high-pressure rotary sealing sleeve 5 and the sealing rod 2 is achieved, and the high-pressure rotary sealing assembly and the rotating head 9 are prevented from being separated from the sealing rod 2.
A stepped hole is formed in the water inlet connector 1, a circular step is formed in the rear end of the sealing rod 2, and the sealing rod 2 penetrates into the stepped hole in the water inlet connector 1 from the rear end of the water inlet connector 1 and is fixed in the stepped hole in the water inlet connector 1. The water inlet joint 1 and the sealing rod 2 can be directly machined into one piece if factors such as convenience in maintenance and reduction in use cost are not taken into consideration.
The limiting part is one of components with limiting functions, such as an inner hexagonal screw, a straight screw, a cross screw, a snap ring and the like.
The working process of the invention is as follows:
referring to fig. 1, high-pressure water flows into the water inlet joint 1 and enters the inner cavity 11 of the rotary head 9 after passing through the through hole 17, the through hole 18, the drainage channel 15, the drainage channel 14 and the drainage channel 13 in the high-pressure rotary sealing assembly in the sealing rod 2. Eccentric injection holes are formed in the rotary head 9 and/or the housing 4 and the high-pressure rotary sealing sleeve 5, and when high-pressure water is injected from the eccentric holes, the rotary head 9 and the high-pressure rotary sealing assembly rotate around the sealing rod 2 at a high speed. The rotating head 9 passes through connecting thread 12 and 5 front end threaded connection of high pressure rotary seal cover, 5 the central axis direction of high pressure rotary seal cover has cascaded through-hole, the blind stifled 8 of the sealed of O shape circle 7 that is equipped with penetrates and is fixed in the cascaded through-hole of 5 front ends of high pressure rotary seal cover from 5 front ends of high pressure rotary seal cover, sealing washer 3 covers in 2 roots of sealing rod, sealing rod 2 penetrates and is blocked in the cascaded through-hole of 5 rear ends of high pressure rotary seal cover through spacing spare part 6 from 5 rear ends of high pressure rotary seal cover. A gap seal is adopted between the cylindrical surface at the front end of the sealing rod 2 and the inner hole at the rear end of the high-pressure rotary sealing sleeve 5, one end of leakage water generated by the gap seal is led out from a water drain hole 16 on the side surface of the high-pressure rotary sealing component, and the other end of the leakage water is led out from an annular gap 19 formed between the front end of the water inlet joint 1 and the rear end of the high-pressure rotary sealing component. By the technical means of combining the drainage channel 13, the drainage channel 14, the drainage channel 15, the sealing blind plug 8 and the limiting part 6, high-pressure water flowing into the water inlet joint 1 is introduced into the inner cavity 11 of the front-end rotating head 9 through the through hole 17 and the through hole 18 in the sealing rod 2.
Example 2
The high-pressure water rotary sprayer designed by the drainage structure comprises a water inlet joint 1, a sealing rod 2, a sealing ring 3, a shell 22, a limiting part 6, an O-shaped ring 7, a sealing blind plug 8 and a rotary head 9, wherein a through hole 17 and a through hole 18 are formed in the sealing rod 2, a drain hole is processed in the shell 22, a drainage channel 23 and a drainage channel 24 are arranged in the shell 22, the drainage channel 23 is of an annular groove structure, the drainage channel 24 is of a long and thin through hole structure, and the drainage channel 24 directly introduces high-pressure water into an inner cavity of the rotary head 9 through the drainage channel 23.
The high-pressure water flows into the water inlet joint 1, passes through the through hole 17 and the through hole 18 in the sealing rod 2, the drainage channel 23 in the shell 22 and the drainage channel 24, and then enters the inner cavity 11 of the rotary head 9. The rotary head 9 and/or the housing 22 are formed with eccentric injection holes, and when high pressure water is injected from the eccentric injection holes, the rotary head 9 and the housing 22 are rotated at a high speed around the sealing rod 2.
Rotating head 9 passes through connecting thread 12 and shell 22 front end threaded connection, and there is cascaded through-hole shell 22 the central axis direction, and the sealed blind plug 8 that is equipped with O shape circle 7 penetrates and is fixed in the cascaded through-hole of shell 22 front end from shell 22 front end, and sealing washer 3 covers in 2 roots of sealing rod, and sealing rod 2 penetrates and is blocked in the cascaded through-hole of shell 22 rear end from shell 22 rear end through spacing spare part 6. A gap seal is adopted between the cylindrical surface at the front end of the sealing rod 2 and the inner hole at the rear end of the shell 22, one end of leakage water generated by the gap seal is led out from a drainage hole 16 at the side surface of the shell 22, and the other end of the leakage water is led out from an annular gap 19 formed between the front end of the water inlet joint 1 and the rear end of the shell 22. By combining the drainage channel 23, the drainage channel 24, the sealing blind plug 8 and the limiting part 6, high-pressure water flowing into the water inlet joint 1 is introduced into the inner cavity of the front-end rotating head 9 through the through hole 17 and the through hole 18 in the sealing rod 2, so that high-efficiency conversion of high-pressure water energy is realized, and jet hitting power is greatly improved; in addition, because the drainage structure and the gap sealing technology are skillfully adopted, radial force and axial force generated in the process that high-pressure water flows through the whole channel are mutually offset or released among parts in the high-pressure water rotating nozzle designed by the drainage structure, and meanwhile, overflow water generated by gap sealing forms a layer of protective film between the rotating shell 22 and the end faces of the non-rotating sealing rod 2 and the water inlet joint 1 to play a certain role in lubrication and support, so that no bearing is required to be installed.
A stepped hole is formed in the water inlet connector 1, a circular step is formed in the rear end of the sealing rod 2, and the sealing rod 2 penetrates into the stepped hole in the water inlet connector 1 from the rear end of the water inlet connector 1 and is fixed in the stepped hole in the water inlet connector 1. The water inlet joint 1 and the sealing rod 2 can be directly machined into one piece if factors such as convenience in maintenance and reduction in use cost are not taken into consideration.
The limiting part is one of components with limiting functions, such as an inner hexagonal screw, a straight screw, a cross screw, a snap ring and the like.
The working process of the invention is as follows:
referring to fig. 2, high pressure water flows into the water inlet joint 1 and enters the inner cavity of the rotary head 9 through the through holes 17 and 18 inside the sealing rod 2, the drainage channel 23 in the housing 22 and the drainage channel 24. The rotary head 9 and/or the housing 22 are formed with eccentric injection holes, and when high pressure water is injected from the eccentric injection holes, the rotary head 9 and the housing 22 are rotated at a high speed around the sealing rod 2. Rotating head 9 passes through connecting thread 12 and shell 22 front end threaded connection, and there is cascaded through-hole shell 22 the central axis direction, and the sealed blind plug 8 that is equipped with O shape circle 7 penetrates and is fixed in the cascaded through-hole of shell 22 front end from shell 22 front end, and sealing washer 3 covers in 2 roots of sealing rod, and sealing rod 2 penetrates and is blocked in the cascaded through-hole of shell 22 rear end from shell 22 rear end through spacing spare part 6. A gap seal is adopted between the cylindrical surface at the front end of the sealing rod 2 and the inner hole at the rear end of the shell 22, one end of leakage water generated by the gap seal is led out from a drainage hole 16 at the side surface of the shell 22, and the other end of the leakage water is led out from an annular gap 19 formed between the front end of the water inlet joint 1 and the rear end of the shell 22. By the technical means of combining the drainage channel 23, the drainage channel 24, the sealing blind plug 8 and the limiting part 6, high-pressure water flowing into the water inlet joint 1 is introduced into the inner cavity of the front-end rotating head 9 through the through hole 17 and the through hole 18 in the sealing rod 2.
The invention has the beneficial effects that: the novel drainage structure is mainly used for cleaning scars and dirt of pipelines, fills up domestic and foreign blank, has comprehensive performance indexes reaching or exceeding the prior technical level of international similar products, and has the following remarkable advantages compared with the prior similar products at home and abroad: the invention is simple and unique, the operation is safer and more reliable under the high-pressure state, and the service life is longer; the manufacturing cost and the use cost are greatly reduced; high-pressure water inflow is ingeniously led into the rotating head at the foremost end of the spray head, and the cleaning effect and the efficiency are greatly improved. All easily damaged parts can be replaced independently, and the maintenance is very convenient.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (8)
1. The utility model provides a rotatory nozzle of water under high pressure of drainage structural design which characterized in that: the high-pressure water rotary sprayer designed by the drainage structure comprises a water inlet joint (1), a sealing rod (2), a high-pressure rotary sealing assembly, a limiting part (6), a sealing blind plug (8) and a rotary head (9), wherein a through hole is formed in the sealing rod (2), a drainage channel is formed in the high-pressure rotary sealing assembly, and high-pressure water flows into the water inlet joint (1) and enters an inner cavity of the rotary head (9) after passing through the through hole in the sealing rod (2) and the drainage channel in the high-pressure rotary sealing assembly; the rotary head (9) is provided with an eccentric jet hole, and when high-pressure water is jetted from the eccentric jet hole, the rotary head (9) and the high-pressure rotary sealing assembly rotate around the sealing rod (2) at a high speed; the rotary head (9) is connected with the high-pressure rotary sealing assembly through a connecting thread (12), a stepped through hole is formed in the central axis direction of the high-pressure rotary sealing assembly, a sealing blind plug (8) penetrates from the front end of the high-pressure rotary sealing assembly and is fixed in the stepped through hole in the front end of the high-pressure rotary sealing assembly, and a sealing rod (2) penetrates from the rear end of the high-pressure rotary sealing assembly and is clamped in the stepped through hole in the rear end of the high-pressure rotary sealing assembly through a limiting part (6); a gap seal is adopted between the cylindrical surface at the front end of the sealing rod (2) and the inner hole at the rear end of the high-pressure rotary sealing component, one end of leakage water generated by the gap seal is led out from a drain hole (16) on the side surface of the high-pressure rotary sealing component, and the other end of the leakage water is led out from an annular gap (19) formed between the front end of the water inlet joint (1) and the rear end of the high-pressure rotary sealing component; by the technical means of combining the drainage channel, the sealing blind plug (8) and the limiting part (6), high-pressure water flowing into the water inlet joint (1) is introduced into the inner cavity of the front-end rotating head (9) through the through hole in the sealing rod (2).
2. The high-pressure water rotary sprayer with the flow guide structure design according to claim 1, characterized in that: the high-pressure rotary sealing assembly comprises a shell (4) and a high-pressure rotary sealing sleeve (5), the shell (4) and the high-pressure rotary sealing sleeve (5) are assembled into a whole after interference assembly, an eccentric jet hole is processed on the high-pressure rotary sealing assembly, a rotating head (9) is in threaded connection with the front end of the high-pressure rotary sealing sleeve (5) through a connecting thread (12), a stepped through hole is formed in the direction of the central axis of the high-pressure rotary sealing sleeve (5), a sealing blind plug (8) penetrates from the front end of the high-pressure rotary sealing sleeve (5) and is fixed in the stepped through hole in the front end of the high-pressure rotary sealing sleeve (5), a sealing rod penetrates from the rear end of the high-pressure rotary sealing sleeve (5) and is clamped in the stepped through hole in the rear end of the high-pressure rotary sealing sleeve (5) through a limiting part (6), and clearance sealing is adopted, one end of leakage water generated by the gap seal is led out from a lateral drainage hole (16) of the shell (4) and the high-pressure rotary sealing sleeve (5), and the other end of the leakage water is led out from an annular gap (19) formed between the front end of the water inlet joint (1) and the rear ends of the shell (4) and the high-pressure rotary sealing sleeve (5).
3. The high-pressure water rotary sprayer with the flow guide structure design according to claim 2, characterized in that: a sealing blind plug (8) is arranged at the stepped through hole in the front end of the high-pressure rotary sealing sleeve (5).
4. The high-pressure water rotary sprayer with the flow guide structure design according to claim 2, characterized in that: the limiting part (6) is fixed at the front end of the sealing rod (2) in a threaded connection mode, and the outer diameter of the limiting surface of the limiting part (6) is slightly larger than the outer diameter of the cylindrical surface at the front end of the sealing rod (2) and the size of the inner hole at the rear end of the high-pressure rotary sealing sleeve (5) in clearance fit with the cylindrical surface.
5. The high-pressure water rotary sprayer with the flow guide structure design according to claim 2, characterized in that: a drainage channel (13), a drainage channel (14) and a drainage channel (15) are arranged in the high-pressure rotary sealing assembly, the drainage channel (13) and the drainage channel (15) are of porous structures, and the drainage channel (14) is of a groove structure.
6. The high-pressure water rotary sprayer with the flow guide structure design according to claim 1, characterized in that: the high-pressure rotary sealing assembly is a shell (22), a drain hole is processed in the shell (22), a drainage channel (23) and a drainage channel (24) are arranged in the shell (22), the drainage channel (23) is of an annular groove structure, and the drainage channel (24) is of a long and thin through hole structure.
7. The high-pressure water rotary sprayer with the flow guide structure design according to claim 1, characterized in that: a stepped hole is formed in the water inlet connector (1), a circular step is formed in the rear end of the sealing rod (2), and the sealing rod (2) penetrates into the stepped hole in the water inlet connector (1) from the rear end of the water inlet connector (1) and is fixed in the stepped hole in the water inlet connector (1).
8. The high-pressure water rotary sprayer with the drainage structure design as claimed in claim 1, characterized in that: the water inlet joint (1) and the sealing rod (2) can be directly processed into a component.
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| CN202010110592.8A CN111167626A (en) | 2020-02-24 | 2020-02-24 | High-pressure water rotary nozzle with drainage structure design |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115319824A (en) * | 2022-08-11 | 2022-11-11 | 桐昆集团浙江恒腾差别化纤维有限公司 | Automatic water touching device for slotting paper tube |
-
2020
- 2020-02-24 CN CN202010110592.8A patent/CN111167626A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115319824A (en) * | 2022-08-11 | 2022-11-11 | 桐昆集团浙江恒腾差别化纤维有限公司 | Automatic water touching device for slotting paper tube |
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