CN111495620A - High-pressure water self-rotating spray head with embedded flow guide sealing sleeve structure design - Google Patents
High-pressure water self-rotating spray head with embedded flow guide sealing sleeve structure design Download PDFInfo
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- CN111495620A CN111495620A CN202010486634.8A CN202010486634A CN111495620A CN 111495620 A CN111495620 A CN 111495620A CN 202010486634 A CN202010486634 A CN 202010486634A CN 111495620 A CN111495620 A CN 111495620A
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- sealing sleeve
- flow guide
- guide sealing
- pressure water
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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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Abstract
The invention relates to the technical field of high-pressure water industrial cleaning, in particular to a high-pressure water self-rotating spray head with an embedded diversion sealing sleeve structure. A high pressure water self-rotating nozzle with an embedded flow guide sealing sleeve structure design comprises a water inlet joint, a blind plug, a limiting part, a flow guide sealing sleeve, a shell, a rotating shaft and a cleaning head. The flow guide sealing sleeve is used as a core, and easily damaged parts can be independently disassembled and replaced, so that the cost is reduced; the pressure-resistant grade of the product is improved, and the working safety and reliability are greatly improved; the cleaning effect and the cleaning efficiency are greatly improved; the rotating part is light in total weight, small in size, safe, stable and reliable when rotating at a high speed in a high-pressure state, and long in service life.
Description
Technical Field
The invention relates to the technical field of high-pressure water industrial cleaning, in particular to a high-pressure water self-rotating spray head with an embedded flow guide sealing sleeve structure.
Background
The high-pressure water self-rotating spray head is an efficient water jet cleaning tool, and the shape, the size, the pressure resistance grade and the internal structure of the high-pressure water self-rotating spray head are mainly determined by factors such as the structural size of an object to be cleaned, the physical performance of scabbing or dirt and the like. 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 problems of the use effect, the cleaning efficiency, the manufacturing cost, the use cost and the like are also considered. Generally, a high pressure water self-spinning nozzle with a smaller outer diameter dimension, such as 11mm, has no bearing type available inside it, and therefore, how to balance the axial and radial forces generated by the nozzle in a high pressure spinning state? How to reduce the rotational frictional resistance to ensure the normal rotation of the head? How to control the reasonable leakage of the high pressure seal? How to ensure the safety performance of the key parts under high pressure and the like are key technical problems which must be solved by designers. The first inventor of the present invention has been dedicated to research and development work of peripheral accessories and cleaning tools of high-pressure water cleaning equipment since 2002 and has accumulated a relatively rich practical experience.
The cleaning head is an open-circuit pioneer in the high-pressure water rotary spray head and is also an extremely vulnerable part, and the cleaning head mainly functions to convert high-pressure water into mechanical energy with cutting and crushing capabilities. Practice has shown that the optimum state of the cleaning effect, efficiency or striking force of the high-pressure water jet can only be achieved when the cleaning head is in the foremost position of the rotary spray head.
Disclosure of Invention
The technical problems solved by the invention are as follows:
through adopting an independent embedded diversion seal cover structural design that just can dismouting change for the diversion seal cover as core, vulnerable part is changeed in dismouting and change, the cost is reduced. The diversion sealing sleeve is completely embedded and fixed in the central stepped hole in the shell, so that the condition that high-pressure water flowing through the diversion trench and the diversion channel in the shell leaks outwards along the central stepped hole in the shell due to expansion deformation in a high-pressure state can be effectively avoided, and the highest pressure-resistant grade of the rotary sprayer is greatly improved. Radial force and axial force generated in the process that high-pressure water flows through the whole channel mutually counteract and release among parts in the self-rotating spray head, meanwhile, overflow water generated by gap sealing forms a layer of protective film between the rotating shaft and the central hole of the non-rotating flow guide sealing sleeve, and the protective film plays a certain role in lubrication and support, so that no bearing is required to be installed, and the outer diameter size of the self-rotating spray head is reduced.
In view of the above, the present invention provides a high pressure water self-rotating nozzle with an embedded diversion sealing sleeve structure.
The technical scheme of the invention is as follows:
a high-pressure water self-rotating spray head with an embedded flow guide sealing sleeve structure design comprises a water inlet joint 1, a blind plug 3, a limiting part 5, a flow guide sealing sleeve 6, a shell 7, a rotating shaft 9 and a cleaning head 10; a shell inner central stepped hole 17 and a shell inner central stepped hole 18 for installing the embedded diversion sealing sleeve 6 are formed in the shell 7; the flow guide sealing sleeve 6 is taken as a core and a vulnerable part and can be independently disassembled and replaced, a stepped central hole 15, a stepped central hole 23, a stepped central hole 25 and a through hole 19 are arranged in the flow guide sealing sleeve 6, a semi-closed flow guide groove 21 is arranged outside the flow guide sealing sleeve 6, and the flow guide sealing sleeve 6 penetrates from the rear end of the shell 7 and is fixed at the front end step of the central stepped hole 18 in the shell; the step at the front end of the central stepped hole 18 in the shell can be used for fixing the embedded diversion sealing sleeve 6 and playing a role in high-pressure sealing, so that the condition that high-pressure water flowing through the diversion trench 21 leaks outwards along the central stepped hole 17 in the shell is effectively prevented; a gap is reserved between the rear end of the flow guide sealing sleeve 6 and the front end of the water inlet joint 1 to form a flow guide channel 26; after the water inlet joint 1 is connected with the rear end of the shell 7 through the threads 28, a water outlet cavity 27 in the water inlet joint 1, the drainage channel 26, the diversion trench 21 and the through hole 19 form a closed high-pressure water flow channel; the blind plug 3 penetrates from the rear end of the flow guide sealing sleeve 6 and is fixed at the front end step of the stepped central hole 25; the limiting part 5 penetrates from the rear end of the flow guide sealing sleeve 6 and is axially limited in the stepped central hole 23, the outer diameter of the limiting part 5 is slightly smaller than the inner diameter of the middle stepped central hole 23 in the flow guide sealing sleeve, and is slightly larger than the inner diameter of the front-end stepped central hole 15 in the flow guide sealing sleeve; the rotating shaft 9 is axially limited in a front stepped central hole 15 in the diversion sealing sleeve 6 through the limiting piece 5, a front connecting thread 13 of the rotating shaft 9 is used for connecting the cleaning head 10, and a rear thread 22 is used for connecting and fixing the limiting piece 5.
High-pressure water flows into a drainage channel 26 and a plurality of diversion grooves 21 outside the embedded diversion sealing sleeve 6 through a water outlet cavity 27 at the front end of the water inlet joint 1, then enters the water inlet cavity 12 of the cleaning head 10 through the through hole 19, the through hole 20 and the through hole 16, and finally is sprayed out from the spray hole 11 on the cleaning head 10 at a high speed. The cleaning head 10 is provided with an eccentric jet hole, when high-pressure water is jetted from the eccentric hole at a high speed, the cleaning head 10 drives the rotating shaft 9 to rotate around the front stepped central hole 15 in the diversion sealing sleeve 6 at a high speed.
The housing 7 and the embedded flow guiding sealing sleeve 6 do not rotate, and the rotating shaft 9 and the cleaning head 10 rotate together. The cleaning head 10 and the rotating shaft 9 jointly constitute a rotating part and rotate at high speed around a front stepped central hole 15 inside the diversion sealing sleeve 6. Because the rotating part has light weight and small volume, the rotating part is safer, more stable and more reliable when rotating at high speed under a high-pressure state, effectively improves the eccentric wear of the rotating shaft caused by the action of the gravity of the rotating part, and has longer service life. Meanwhile, high-pressure water is ingeniously and indirectly introduced into the cleaning head at the foremost end of the rotary spray head, so that the cleaning effect and the cleaning efficiency are greatly improved.
A gap sealing technology is adopted between the outer circular surface of the rear end of the rotating shaft 9 and the stepped central hole 15 at the front end in the flow guide sealing sleeve 6, one end of leakage water generated by gap sealing flows out from a crack 14 formed by the middle part of the rotating shaft 9 and the front end of the shell 7, and the other end of the leakage water is led out from a drain hole 24 processed between the shell 7 and the flow guide sealing sleeve 6. By combining the diversion trench 21, the through hole 19, the through hole 20, the blind plug 3 and the limiting piece 5, high-pressure water flowing into the water inlet joint 1 is indirectly introduced into the water inlet cavity 12 of the cleaning head 10 at the foremost end of the rotary spray head, so that high-pressure water energy efficient conversion is realized, and jet impact force is greatly improved. In addition, due to the skillful technical means of combining the embedded diversion sealing sleeve structure design and the gap sealing technology, radial force and axial force generated in the process that high-pressure water flows through the whole channel are mutually offset and released among parts in the high-pressure water self-rotating spray head with the embedded diversion sealing sleeve structure design. At the same time, the overflow water produced by the gap seal forms a layer of protective film between the rotating and non-rotating parts, which plays a certain role in lubrication and support, thus eliminating the need for any bearings.
Preferably, the flow guide sealing sleeve 6 is an independent part and can be independently disassembled, assembled and replaced.
Preferably, the guide sealing sleeve 6 has a plurality of totally enclosed guide holes therein.
Preferably, the middle part of the water inlet joint 1 can be provided with a backward injection propelling hole.
Preferably, the rotary shaft 9 and the cleaning head 10 are directly processed as one unit.
The inner hole of the shell 7 and the outer circular surface of the embedded diversion sealing sleeve 6 adopt an interference assembly mode.
The invention has the beneficial effects that: the invention is mainly used for cleaning scars and dirt of pipelines, the design of the structure of the embedded diversion sealing sleeve fills the blank at home and abroad, and has the following remarkable advantages:
1. through adopting an independent embedded diversion seal cover structural design that just can dismouting change for the diversion seal cover as core, vulnerable part is changeed in dismouting and change, the cost is reduced. The diversion sealing sleeve is completely embedded and fixed in the central stepped hole in the shell, so that the condition that high-pressure water flowing through the diversion trench and the diversion channel in the shell leaks outwards along the central stepped hole in the shell due to expansion deformation in the high-pressure state in the shell can be effectively avoided.
2. The pressure-resistant grade of the product is improved, the highest pressure resistance of the similar product is increased to be more than or equal to 280Mpa from the highest pressure resistance of the similar product, and the working safety and reliability are greatly improved.
3. The shell 7 and the flow guide sealing sleeve 6 do not rotate, the rotating shaft 9 and the cleaning head 10 jointly form a rotating part, and the rotating part is light in total weight and small in size, so that the eccentric wear of the rotating shaft caused by the action of self gravity is improved more safely, stably and reliably during high-speed rotation in a high-pressure state, and the service life is longer.
4. High-pressure water is ingeniously and indirectly introduced into the cleaning head at the foremost end of the rotary spray head, and the cleaning effect and the cleaning efficiency are greatly improved.
Drawings
Fig. 1 is a cross-sectional view of a high-pressure water self-rotating spray head with an embedded diversion sealing sleeve structure design according to the invention.
Fig. 2 is a schematic view of a high-pressure water flow path of a high-pressure water self-rotating nozzle designed by an embedded diversion sealing sleeve structure of the invention.
Wherein:
1-water inlet joint; 2-sealing ring; 3, blind plugging; 4-sealing ring; 5-a limiting part;
6-diversion sealing sleeve; 7-a housing; 8-sealing ring; 9-a rotating shaft; 10-a cleaning head;
11-an injection hole; 12-a water inlet cavity; 13-connecting screw thread; 14-crack; 15-stepped central hole;
16-a through hole; 17-stepped central hole inside the housing; 18-stepped central bore inside the housing;
19-a through hole; 20-a through hole; 21-a diversion trench; 22-threads; 23-stepped central bore;
24-a drain hole; 25-stepped central bore; 26-a drainage channel; 27-a water outlet cavity;
28-threads; 29-post-jet perforation; 30-thread
Detailed Description
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.
Examples
With reference to fig. 1, the high-pressure water self-rotating nozzle with the embedded flow guide sealing sleeve structure design comprises a water inlet joint 1, a blind plug 3, a limiting part 5, a flow guide sealing sleeve 6, a housing 7, a rotating shaft 9 and a cleaning head 10; a shell inner central stepped hole 17 and a shell inner central stepped hole 18 for installing the embedded diversion sealing sleeve 6 are formed in the shell 7; the flow guide sealing sleeve 6 is taken as a core and a vulnerable part and can be independently disassembled and replaced, a stepped central hole 15, a stepped central hole 23, a stepped central hole 25 and a through hole 19 are arranged in the flow guide sealing sleeve 6, a semi-closed flow guide groove 21 is arranged outside the flow guide sealing sleeve 6, and the flow guide sealing sleeve 6 penetrates from the rear end of the shell 7 and is fixed at the front end step of the central stepped hole 18 in the shell; the step at the front end of the central stepped hole 18 in the shell can be used for fixing the embedded diversion sealing sleeve 6 and playing a role in high-pressure sealing, so that the condition that high-pressure water flowing through the diversion trench 21 leaks outwards along the central stepped hole 17 in the shell is effectively prevented; a gap is reserved between the rear end of the flow guide sealing sleeve 6 and the front end of the water inlet joint 1 to form a flow guide channel 26; after the water inlet joint 1 is connected with the rear end of the shell 7 through the threads 28, a water outlet cavity 27 in the water inlet joint 1, the drainage channel 26, the diversion trench 21 and the through hole 19 form a closed high-pressure water flow channel; the blind plug 3 penetrates from the rear end of the flow guide sealing sleeve 6 and is fixed at the front end step of the stepped central hole 25; the limiting part 5 penetrates from the rear end of the flow guide sealing sleeve 6 and is axially limited in the stepped central hole 23, the outer diameter of the limiting part 5 is slightly smaller than the inner diameter of the middle stepped central hole 23 in the flow guide sealing sleeve, and is slightly larger than the inner diameter of the front-end stepped central hole 15 in the flow guide sealing sleeve; the rotating shaft 9 is axially limited in a front stepped central hole 15 in the diversion sealing sleeve 6 through the limiting piece 5, a front connecting thread 13 of the rotating shaft 9 is used for connecting the cleaning head 10, and a rear thread 22 is used for connecting and fixing the limiting piece 5.
High-pressure water flows into a drainage channel 26 and a plurality of diversion grooves 21 outside the embedded diversion sealing sleeve 6 through a water outlet cavity 27 at the front end of the water inlet joint 1, then enters the water inlet cavity 12 of the cleaning head 10 through the through hole 19, the through hole 20 and the through hole 16, and finally is sprayed out from the spray hole 11 on the cleaning head 10 at a high speed. The cleaning head 10 is provided with an eccentric jet hole, when high-pressure water is jetted from the eccentric hole at a high speed, the cleaning head 10 drives the rotating shaft 9 to rotate around the front stepped central hole 15 in the diversion sealing sleeve 6 at a high speed. The housing 7 and the embedded flow guiding sealing sleeve 6 do not rotate, and the rotating shaft 9 and the cleaning head 10 rotate together. The cleaning head 10 and the rotating shaft 9 jointly constitute a rotating part and rotate at high speed around a front stepped central hole 15 inside the diversion sealing sleeve 6. Because the rotating part has light weight and small volume, the rotating part is safer, more stable and more reliable when rotating at high speed under a high-pressure state, effectively improves the eccentric wear of the rotating shaft caused by the action of the gravity of the rotating part, and has longer service life. Meanwhile, high-pressure water is ingeniously and indirectly introduced into the cleaning head at the foremost end of the rotary spray head, so that the cleaning effect and the cleaning efficiency are greatly improved.
A gap sealing technology is adopted between the outer circular surface of the rear end of the rotating shaft 9 and the stepped central hole 15 at the front end in the flow guide sealing sleeve 6, one end of leakage water generated by gap sealing flows out from a crack 14 formed by the middle part of the rotating shaft 9 and the front end of the shell 7, and the other end of the leakage water is led out from a drain hole 24 processed between the shell 7 and the flow guide sealing sleeve 6. By combining the diversion trench 21, the through hole 19, the through hole 20, the blind plug 3 and the limiting piece 5, high-pressure water flowing into the water inlet joint 1 is indirectly introduced into the water inlet cavity 12 of the cleaning head 10 at the foremost end of the rotary spray head, so that high-pressure water energy efficient conversion is realized, and jet impact force is greatly improved. In addition, due to the skillful technical means of combining the embedded diversion sealing sleeve structure design and the clearance sealing technology, radial force and axial force generated in the process that high-pressure water flows through the whole channel are mutually offset and released among parts in the high-pressure water self-rotating spray head with the embedded diversion sealing sleeve structure design, meanwhile, overflow water generated by clearance sealing forms a layer of protective film between a rotating part and a non-rotating part, and the layer of protective film plays a certain role in lubrication and support, so that no bearing is required to be installed.
The diversion sealing sleeve 6 is an independent part and can be independently disassembled, assembled and replaced.
The inside of the diversion sealing sleeve 6 is provided with a plurality of totally enclosed diversion holes.
The middle part of the water inlet joint 1 can be processed with a pushing hole which is sprayed backwards.
The rotary shaft 9 and the cleaning head 10 can be directly machined as one part.
The inner hole of the shell 7 and the outer circular surface of the embedded diversion sealing sleeve 6 adopt an interference assembly mode.
The invention has the beneficial effects that: the invention is mainly used for cleaning scars and dirt of pipelines, the design of the structure of the embedded diversion sealing sleeve fills the blank at home and abroad, and has the following remarkable advantages:
1. through adopting an independent embedded diversion seal cover structural design that just can dismouting change for the diversion seal cover as core, vulnerable part is changeed in dismouting and change, the cost is reduced. The diversion sealing sleeve is completely embedded and fixed in the central stepped hole in the shell, so that the condition that high-pressure water flowing through the diversion trench and the diversion channel in the shell leaks outwards along the central stepped hole in the shell due to expansion deformation in the high-pressure state in the shell can be effectively avoided.
2. The pressure-resistant grade of the product is improved, the highest pressure resistance of the similar product is increased to be more than or equal to 280Mpa from the highest pressure resistance of the similar product, and the working safety and reliability are greatly improved.
3. The shell 7 and the flow guide sealing sleeve 6 do not rotate, the rotating shaft 9 and the cleaning head 10 jointly form a rotating part, and the rotating part is light in total weight and small in size, so that the eccentric wear of the rotating shaft caused by the action of self gravity is improved more safely, stably and reliably during high-speed rotation in a high-pressure state, and the service life is longer.
4. High-pressure water is ingeniously and indirectly introduced into the cleaning head at the foremost end of the rotary spray head, and the cleaning effect and the cleaning efficiency are greatly improved.
Claims (5)
1. The utility model provides a high pressure water autogyration shower nozzle of embedded water conservancy diversion seal cover structural design which characterized in that: the high-pressure water self-rotating spray head with the structure design of the embedded flow guide sealing sleeve mainly comprises a water inlet joint (1), a blind plug (3), a limiting part (5), the flow guide sealing sleeve (6), a shell (7), a rotating shaft (9) and a cleaning head (10), wherein a shell inner central stepped hole (17) and a shell inner central stepped hole (18) for installing the embedded flow guide sealing sleeve (6) are formed in the shell (7); a stepped central hole (15), a stepped central hole (23), a stepped central hole (25) and a through hole (19) are formed in the flow guide sealing sleeve (6), a semi-closed flow guide groove (21) is formed in the outer part of the flow guide sealing sleeve (6), and the flow guide sealing sleeve (6) penetrates from the rear end of the shell (7) and is fixed at a step at the front end of a central stepped hole (18) in the shell; a gap is reserved between the rear end of the flow guide sealing sleeve (6) and the front end of the water inlet joint (1) to form a flow guide channel (26); the water inlet joint (1) is connected with the rear end of the shell (7) through a thread (28); the blind plug (3) penetrates from the rear end of the flow guide sealing sleeve (6) and is fixed at the front end step of the stepped central hole (25); the limiting piece (5) penetrates from the rear end of the flow guide sealing sleeve (6) and is axially limited in the stepped central hole (23); the front end connecting thread (13) of the rotating shaft (9) is used for connecting the cleaning head (10), and the rear end thread (22) is used for connecting the fixed limiting piece (5).
2. The high-pressure water self-rotating spray head with the embedded flow guide sealing sleeve structure design according to claim 1, characterized in that: the flow guide sealing sleeve (6) is an independent part and can be independently disassembled, assembled and replaced.
3. The high-pressure water self-rotating spray head with the embedded flow guide sealing sleeve structure design according to claim 1, characterized in that: the inside of the diversion sealing sleeve (6) is provided with a plurality of totally enclosed diversion holes.
4. The high-pressure water self-rotating spray head with the embedded flow guide sealing sleeve structure design according to claim 1, characterized in that: the middle part of the water inlet joint (1) can be processed with a pushing hole which is ejected backwards.
5. The high-pressure water self-rotating spray head with the embedded flow guide sealing sleeve structure design according to claim 1, characterized in that: the rotary shaft (9) and the cleaning head (10) can be directly machined as one part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010486634.8A CN111495620A (en) | 2020-06-01 | 2020-06-01 | High-pressure water self-rotating spray head with embedded flow guide sealing sleeve structure design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010486634.8A CN111495620A (en) | 2020-06-01 | 2020-06-01 | High-pressure water self-rotating spray head with embedded flow guide sealing sleeve structure design |
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| Publication Number | Publication Date |
|---|---|
| CN111495620A true CN111495620A (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010486634.8A Pending CN111495620A (en) | 2020-06-01 | 2020-06-01 | High-pressure water self-rotating spray head with embedded flow guide sealing sleeve structure design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111495620A (en) |
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2020
- 2020-06-01 CN CN202010486634.8A patent/CN111495620A/en active Pending
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