CN108654857A - A kind of machine components pressurization wide-angle spray piecing devices - Google Patents
A kind of machine components pressurization wide-angle spray piecing devices Download PDFInfo
- Publication number
- CN108654857A CN108654857A CN201810441499.8A CN201810441499A CN108654857A CN 108654857 A CN108654857 A CN 108654857A CN 201810441499 A CN201810441499 A CN 201810441499A CN 108654857 A CN108654857 A CN 108654857A
- Authority
- CN
- China
- Prior art keywords
- shell
- wide
- pressurization
- right end
- machine components
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0278—Arrangement or mounting of spray heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
Landscapes
- Nozzles (AREA)
Abstract
The invention discloses a kind of machine components pressurization wide-angles to spray piecing devices, including shell, pressurize ring set, water injection pipe, adjust pipeline, outlet pipe, support spring, activity current limliting ball, supporting sleeve, movable rod, water outlet connector and wide-angle nozzle, pressurization ring set is disposed on the shell, water injection pipe, check valve, threaded base, threaded cap, rubber ring, shunt import, shunting outlet, it is pressurized ring baffle, adjust pipeline, outlet pipe, annular backing plate, support spring, activity current limliting ball, supporting sleeve, movable rod, water outlet connector, wide-angle nozzle, bleeder port.The present invention coordinates the design of wide-angle nozzle to improve hydraulic pressure using pressurization ring set, improve the cleaning efficiency to parts, increase the fixing device of water inlet pipe, and it is additionally arranged manual water-pressure regulating device, more convenient and safe when use, replaceable water outlet connector and wide-angle nozzle are increased, it is more convenient to use convenient for carrying out maintenance and cleaning at any time.
Description
Technical field
The present invention relates to a kind of processing cleaning attachment, specifically a kind of machine components pressurization wide-angle sprays piecing devices.
Background technology
Along with development in science and technology with rapid changepl. never-ending changes and improvements, China comprehensively enters the industrialization process segment now.In work
It is various in industry processing mechanically all often to have various parts and need maintenance clean.
Existing component of machine cleaning is simple, and multipurpose high-pressure hydraulic giant rinses, and such flush efficiency is relatively low, wherein many dead
Angle is not easy to clean to, and giant controls hydraulic pressure by limiting flow, but flow is less, and area coverage is limited.
Invention content
The purpose of the present invention is to provide a kind of machine components pressurization wide-angles to spray piecing devices, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides the following technical solutions：
A kind of machine components pressurization wide-angle sprays piecing devices, including shell, pressurization ring set, water injection pipe, adjusts pipeline, goes out
Water pipe, support spring, activity current limliting ball, supporting sleeve, movable rod, water outlet connector and wide-angle nozzle, the closure periphery
Middle part welding is provided with pressurization ring set, and the shell left end is connected with water injection pipe, and the water injection pipe is connected to the shell,
Inner wall is connected with check valve on the right side of the water main, and the water injection pipe periphery, which is located on the left of the shell, is provided with screw thread bottom
Seat, the threaded base periphery are movably set with threaded cap, are located at the pressurization ring set left part on the shell top wall and lower wall
Be provided through shunting import, the shunting import right end tilts outward along the shell central axes, the shell top wall and
It is provided through shunting outlet positioned at the pressurization ring set right part on lower wall, the right end of the shunting outlet is along the shell
Axis slopes inwardly, and upper and lower both sides are located between the shunting import and shunting outlet and are symmetrical arranged in the pressurization ring set
There is a supercharging ring baffle, there are gaps, the shell right end inner wall to pass through screw-thread fit activity between the supercharging ring baffle
It is connected with adjusting pipeline, the adjusting pipeline right end welding is provided with outlet pipe, described distribute is located in the shell
Welding is provided with annular backing plate on the right side of mouthful, and the annular backing plate is the endless metal circle that middle part is welded with cross metal frame, institute
It states the welding of annular backing plate right end and is provided with support spring, the support spring right end is connected with activity current limliting ball, described
The welding of annular backing plate right end is provided with supporting sleeve, and the interior sliding of the supporting sleeve, which is connected, is provided with movable rod, described
Movable rod right end and the activity current limliting ball are welded and fixed, and outlet pipe periphery is flexibly connected by screw-thread fit
It is provided with water outlet connector, the water outlet connector right end welding is provided with wide-angle nozzle.
As a further solution of the present invention：The shell is the stainless steel cylinder that left end closes that right end opens, the shell
Body right end inner wall is tapped.
As a further solution of the present invention：The pressurization ring set is spherical cavity structure, and the shell level adds through described
Pressure ring set middle part and sealing fixation.
As a further solution of the present invention：The check valve is unidirectionally from connection in the export-oriented shell.
As a further solution of the present invention：The threaded cap inner wall and the threaded base are tapped with matched screw thread,
The threaded cap inner wall left end is inlayed equipped with rubber ring, and the rubber ring mutually agrees with the water injection pipe ruler diameter.
As a further solution of the present invention：The shunting import right end tilts outward along the shell central axes.
As a further solution of the present invention：The right end of the shunting outlet slopes inwardly along the central axes of the shell.
As a further solution of the present invention：The activity current limliting ball ruler diameter is more than the ruler diameter of the outlet pipe.
As a further solution of the present invention：One end insertion, which is equipped with, in the wide-angle nozzle is connected to the water outlet connector
Reverse frustoconic cavity, truncated cone-shaped cavity lower end and the external world are provided with and communicated with radial multigroup through-hole, the wide-angle spray
Head is equipped with multigroup.
Compared with prior art, the beneficial effects of the invention are as follows：By the output channel of high-pressure water and water injection pipe when use
It is connected, flow is entered by water injection pipe in shell, by threaded cap and threaded base by screw-thread fit fixation, avoids water
Pipe falls off, in this way using more safety and stability；Flow enters in shell, and a part is directly moved right by enclosure interior, and one
Part is entered by shunting import in pressurization ring set, then by being returned in shell after being pressurized ring baffle and shunting outlet, this
The setting of sample can pressurize to water body, and water body has the pressure of bigger and faster speed, convenient for dirty to the stubbornness on part
Stain is cleaned, and flow is flowed by shell right end and adjusted in pipeline, can be then discharged by outlet pipe, is adjusted pipeline and is passed through
Turned in the right end or so of shell, the contact surface of activity current limliting ball and outlet pipe can be adjusted, according to activity current limliting ball with
The size variation in gap can be used in adjusting hydraulic pressure in turn between adjusting inner wall of the pipe, and such design can be manually
Continue pressure regulation, bigger improves the convenience used, can be adjusted flexibly according to different situations, while using preceding activity current limliting
When ball and outlet pipe are in close contact, it will not directly be sprayed when water has just enter into shell, be more favorable for operating in this way；Make
Water outlet connector can be flexibly connected on used time outlet pipe, flow is discharged by wide-angle nozzle after entering water outlet connector, is made for a long time
With rear, water outlet connector and wide-angle nozzle flexibly can be replaced and be cleaned, and can be continued to keep cleaning effect, be avoided blocking shadow
It rings and uses, the injection of wide-angle and pressurization being capable of more preferable more each portion to multiple small parts or the big part of monomer of gamut
Position carries out height cleaning.
Description of the drawings
Fig. 1 is the structural schematic diagram that a kind of machine components pressurization wide-angle sprays piecing devices.
Fig. 2 is the structural schematic diagram that a kind of machine components pressurization wide-angle sprays A in piecing devices.
Fig. 3 is the structural schematic diagram that a kind of machine components pressurization wide-angle sprays support spring in piecing devices.
Fig. 4 is the structural schematic diagram that a kind of machine components pressurization wide-angle sprays wide-angle nozzle in piecing devices.
In figure：1- shells, 2- pressurization ring sets, 3- water injection pipes, 4- check valves, 5- threaded bases, 6- threaded caps, 61- rubber
Circle, 7- shunt import, 8- shuntings outlet, and 9- is pressurized ring baffle, and 10- adjusts pipeline, 11- outlet pipes, 12- annular backing plates, 13-
Support spring, 14- activity current limliting balls, 15- supporting sleeves, 16- movable rods, 17- water outlet connectors, 18- wide-angle nozzles.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1~4, in the embodiment of the present invention, a kind of machine components pressurization wide-angle sprays piecing devices, including shell
1, pressurize ring set 2, water injection pipe 3, adjust pipeline 10, outlet pipe 11, support spring 13, activity current limliting ball 14, supporting sleeve 15,
Movable rod 16, water outlet connector 17 and wide-angle nozzle 18, the shell 1 are the stainless steel cylinder that left end closes that right end opens, institute
It is tapped to state 1 right end inner wall of shell, 1 periphery middle part welding of the shell is provided with pressurization ring set 2, and the pressurization ring set 2 is
Spherical cavity structure, the shell 1 is horizontal to be run through 2 middle part of the pressurization ring set and seals fixation, and 1 left end of the shell is connected with
Water injection pipe 3, the water injection pipe 3 are connected to the shell 1, and for the water injection pipe 3 for connecting high-pressure water, the water main 3 is right
Side inner wall is connected with check valve 4, and the check valve 4 from connection in the export-oriented shell 1, can unidirectionally avoid described in this way
Water in shell 1 pours in down a chimney into the water injection pipe 3, and 3 periphery of the water injection pipe is located at 1 left side of the shell and is provided with threaded base
5,5 periphery of the threaded base is movably set with threaded cap 6, and 6 inner wall of the threaded cap and the threaded base 5 are tapped with matching
Screw thread, 6 inner wall left end of the threaded cap inlays equipped with rubber ring, and the rubber ring mutually agrees with 3 ruler diameter of the water injection pipe, institute
5 periphery of the threaded base can be movably connected in by stating threaded cap 6, when the output channel of high-pressure water is connected to the water injection pipe
When 3 left end, the threaded cap 6 and the cooperation of the threaded base 5 are tightened, rubber ring is located at the output channel of high-pressure water at this time
Periphery can be auxiliarily fixed pipeline and avoid falling off, and run through positioned at 2 left part of pressurization ring set on 1 upper wall of the shell and lower wall
It is provided with shunting import 7,7 right end of shunting import tilts outward along 1 central axes of the shell, and flow enters the shell
In 1, a part is entered by the shunting import 7 in the pressurization ring set 2, is located on 1 upper wall of the shell and lower wall described
Pressurization 2 right part of ring set is provided through shunting outlet 8, and the right end of the shunting outlet 8 is lean-in along the central axes of the shell 1
Tiltedly, the flow in the pressurization ring set 28 is flow back into the shell 1 by shunting outlet, on the pressurization ring set 2 is interior
Lower both sides, which are located between the shunting import 7 and shunting outlet 8, is symmetrically arranged with supercharging ring baffle 9, the pressurized ring
There are gaps, flow, by that can increase hydraulic pressure when the supercharging ring baffle 9, to be carried in the pressurization ring set 2 between shape baffle 9
High flow rate, 1 right end of the shell be connected with adjust pipeline 10,10 periphery of adjusting pipeline be tapped with in the shell 1
The screw thread that wall mutually agrees with, the adjusting pipeline 10 can be moved left and right by screw-thread fit in 1 right end of the shell, the adjusting
The welding of 10 right end of pipeline is provided with outlet pipe 11, and 11 periphery of the outlet pipe is tapped, and flow is flowed by the outlet pipe 11
Go out, 8 right side welding of shunting outlet is located in the shell 1 and is provided with annular backing plate 12, the annular backing plate 12 is middle part
It is welded with the endless metal circle of cross metal frame, the welding of 12 right end of the annular backing plate is provided with support spring 13, the branch
Support 13 right end of spring is connected with activity current limliting ball 14, and the 14 ruler diameter of activity current limliting ball is more than the outlet pipe 11
Ruler diameter, the welding of 12 right end of the annular backing plate are provided with supporting sleeve 15, and 15 right end of the supporting sleeve opens, the supporting sleeve
Movable rod 16 is connected in pipe 15, the movable rod 16 and the supporting sleeve 15 are flexibly connected, and the activity is even
Bar 16 can move left and right in the supporting sleeve 15,16 right end of the movable rod and the activity current limliting ball 14 welding
It is fixed, when the adjusting pipeline 10 is connected to 1 right end of shell by screw-thread fit, the support spring 13, the branch
Support set pipe 15 and the movable rod 16 support the activity current limliting ball 14 jointly, when the adjusting pipeline 10 turns to the left
When, the activity current limliting ball 14 gradually contacts with the outlet pipe 11 and blocks the outlet pipe 11, is using preceding water in this way
Stream will not directly spray, by adjusting the relative position for adjusting pipeline 10 and the shell 1, the adjusting pipeline 10 and institute
Stating the gap size formed between activity current limliting ball 14 can also change correspondingly, to also can by rotation adjust pipeline 10 come
The size of hydraulic pressure is controlled, 11 periphery of outlet pipe is connected with water outlet connector 17, and 17 inner wall of the water outlet connector is attacked
Have with the matched screw thread in the periphery of the outlet pipe 11, the welding of 17 right end of the water outlet connector is provided with wide-angle nozzle 18, described
One end insertion is equipped with the reverse frustoconic cavity being connected to the water outlet connector 17, truncated cone-shaped cavity lower end in wide-angle nozzle 18
It is provided with and communicated with radial multigroup through-hole with the external world, the wide-angle nozzle 18 is equipped with multigroup, and flow passes through the outlet pipe
11 discharge when enter the water outlet connector 17 after sprayed by the wide-angle nozzle 18, can be formed in this way high speed and wide-angle sprinkling
Flow, can a wide range of and thoroughly each position progress height cleaning to multiple small parts or the big part of monomer.
The present invention operation principle be：The output channel of high-pressure water is connected with water injection pipe 3 when use, flow passes through
Water injection pipe 3 enters in shell 1, by threaded cap 6 and threaded base 5 by screw-thread fit fixation, avoids water pipe from falling off, in this way
Use more safety and stability；Flow enters in shell 1, and a part is directly moved right by 1 inside of shell, and a part is by dividing
Mouth 7 is flowed into enter in pressurization ring set 2, it is such to set then by being returned in shell 1 after being pressurized ring baffle 9 and shunting outlet 8
Setting can pressurize to water body, and water body has the pressure of bigger and faster speed, convenient for being carried out to the stain on part
Cleaning, flow are flowed by 1 right end of shell and are adjusted in pipeline 10, can be then discharged by outlet pipe 11, and it is logical to adjust pipeline 10
The right end or so crossed in shell 1 turns, and the contact surface of activity current limliting ball 14 and outlet pipe 11 can be adjusted, according to activity current limliting
The size variation in gap can be used in adjusting hydraulic pressure in turn between ball 14 and adjusting 10 inner wall of pipeline, and such design can lead to
It crosses manual mode and continues pressure regulation, bigger improves the convenience used, can be adjusted flexibly according to different situations, be used simultaneously
When preceding activity current limliting ball 14 and outlet pipe 11 are in close contact, will not directly it be sprayed when water has just enter into shell 1, it is more sharp in this way
In operating with；Water outlet connector 17 can be flexibly connected on outlet pipe 11 when in use, flow passes through after entering water outlet connector 17
Wide-angle nozzle 18 is discharged, and after long-time use, water outlet connector 17 and wide-angle nozzle 18 flexibly can be replaced and be cleaned, can
Persistently keep cleaning effect, avoiding blocking influences to use, the injection of wide-angle and pressurization, can more preferably more gamut to multiple
Each position of small part or the big part of monomer carries out height cleaning.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (9)
1. a kind of machine components pressurization wide-angle sprays piecing devices, including shell, pressurization ring set, water injection pipe, adjusting pipeline, water outlet
Pipe, support spring, activity current limliting ball, supporting sleeve, movable rod, water outlet connector and wide-angle nozzle, which is characterized in that described
Welding is provided with pressurization ring set in the middle part of closure periphery, and the shell left end is connected with water injection pipe, the water injection pipe and described
Shell is connected to, and inner wall is connected with check valve on the right side of the water main, and the water injection pipe periphery, which is located on the left of the shell, to be set
It is equipped with threaded base, the threaded base periphery is movably set with threaded cap, described add is located on the shell top wall and lower wall
Pressure ring set left part is provided through shunting import, and the shunting import right end tilts outward along the shell central axes, described
It is provided through shunting outlet positioned at the pressurization ring set right part on shell top wall and lower wall, the right end of the shunting outlet is along institute
The central axes for stating shell slope inwardly, and upper and lower both sides are located at the shunting import and the shunting outlet in the pressurization ring set
Between be symmetrically arranged with supercharging ring baffle, there are gaps, the shell right end inner wall to pass through spiral shell between the supercharging ring baffle
Line cooperation flexible connection is provided with adjusting pipeline, and the adjusting pipeline right end welding is provided with outlet pipe, is located in the shell
Shunting outlet right side welding is provided with annular backing plate, and the annular backing plate is the annular that middle part is welded with cross metal frame
Quoit, the annular backing plate right end welding are provided with support spring, and the support spring right end is connected with activity current limliting
Ball, the annular backing plate right end welding are provided with supporting sleeve, and the interior sliding of the supporting sleeve, which is connected, is provided with activity
Connecting rod, the movable rod right end and the activity current limliting ball are welded and fixed, and outlet pipe periphery is matched by screw thread
It closes flexible connection and is provided with water outlet connector, the water outlet connector right end welding is provided with wide-angle nozzle.
2. a kind of machine components pressurization wide-angle according to claim 1 sprays piecing devices, which is characterized in that the shell
The stainless steel cylinder that right end opens is closed for left end, the shell right end inner wall is tapped.
3. a kind of machine components pressurization wide-angle according to claim 1 sprays piecing devices, which is characterized in that the pressurization
Ring set is spherical cavity structure, and the shell level is in the middle part of the pressurization ring set and sealing is fixed.
4. a kind of machine components pressurization wide-angle according to claim 1 sprays piecing devices, which is characterized in that described unidirectional
Valve is unidirectionally from connection in the export-oriented shell.
5. a kind of machine components pressurization wide-angle according to claim 1 sprays piecing devices, which is characterized in that the screw thread
Lid inner wall and the threaded base are tapped with matched screw thread, and the threaded cap inner wall left end is inlayed equipped with rubber ring, the rubber
Cushion rubber mutually agrees with the water injection pipe ruler diameter.
6. a kind of machine components pressurization wide-angle according to claim 1 sprays piecing devices, which is characterized in that the shunting
Import right end tilts outward along the shell central axes.
7. a kind of machine components pressurization wide-angle according to claim 1 sprays piecing devices, which is characterized in that the shunting
The right end of outlet slopes inwardly along the central axes of the shell.
8. a kind of machine components pressurization wide-angle according to claim 1 sprays piecing devices, which is characterized in that the activity
Current limliting ball ruler diameter is more than the ruler diameter of the outlet pipe.
9. a kind of machine components pressurization wide-angle according to claim 1 sprays piecing devices, which is characterized in that the wide-angle
One end insertion is equipped with the reverse frustoconic cavity being connected to the water outlet connector in nozzle, and truncated cone-shaped cavity lower end and the external world are even
Logical to be provided with radial multigroup through-hole, the wide-angle nozzle is equipped with multigroup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441499.8A CN108654857A (en) | 2018-04-28 | 2018-04-28 | A kind of machine components pressurization wide-angle spray piecing devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441499.8A CN108654857A (en) | 2018-04-28 | 2018-04-28 | A kind of machine components pressurization wide-angle spray piecing devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108654857A true CN108654857A (en) | 2018-10-16 |
Family
ID=63779056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810441499.8A Withdrawn CN108654857A (en) | 2018-04-28 | 2018-04-28 | A kind of machine components pressurization wide-angle spray piecing devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108654857A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622254A (en) * | 2018-12-19 | 2019-04-16 | 福建金东矿业股份有限公司 | A kind of clean type mining high-voltage spray head of activity pressure regulation |
| CN111084572A (en) * | 2020-01-03 | 2020-05-01 | 司彤 | Water flow reversing device for massage bathtub |
| CN111841204A (en) * | 2020-06-16 | 2020-10-30 | 中交第三公路工程局有限公司 | Tower crane spraying system |
| CN112774059A (en) * | 2021-02-02 | 2021-05-11 | 广州市佳达实业有限公司 | Portable tunnel fire-fighting equipment based on municipal water supply |
-
2018
- 2018-04-28 CN CN201810441499.8A patent/CN108654857A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622254A (en) * | 2018-12-19 | 2019-04-16 | 福建金东矿业股份有限公司 | A kind of clean type mining high-voltage spray head of activity pressure regulation |
| CN109622254B (en) * | 2018-12-19 | 2021-07-30 | 福建金东矿业股份有限公司 | Movable pressure-regulating clean mining high-pressure sprayer |
| CN111084572A (en) * | 2020-01-03 | 2020-05-01 | 司彤 | Water flow reversing device for massage bathtub |
| CN111841204A (en) * | 2020-06-16 | 2020-10-30 | 中交第三公路工程局有限公司 | Tower crane spraying system |
| CN112774059A (en) * | 2021-02-02 | 2021-05-11 | 广州市佳达实业有限公司 | Portable tunnel fire-fighting equipment based on municipal water supply |
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Application publication date: 20181016 |