CN209519929U - A kind of jet nozzle of quick coupling structure - Google Patents
A kind of jet nozzle of quick coupling structure Download PDFInfo
- Publication number
- CN209519929U CN209519929U CN201920009562.0U CN201920009562U CN209519929U CN 209519929 U CN209519929 U CN 209519929U CN 201920009562 U CN201920009562 U CN 201920009562U CN 209519929 U CN209519929 U CN 209519929U
- Authority
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- China
- Prior art keywords
- nozzle
- sleeve
- outer nozzle
- tube body
- inner nozzle
- 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.)
- Expired - Fee Related
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 20
- 238000010168 coupling process Methods 0.000 title claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 claims description 9
- 239000011324 bead Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 9
- 230000014759 maintenance of location Effects 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 8
- 239000001301 oxygen Substances 0.000 abstract description 8
- 229910052760 oxygen Inorganic materials 0.000 abstract description 8
- 239000012071 phase Substances 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 4
- 230000008021 deposition Effects 0.000 abstract description 3
- 239000007791 liquid phase Substances 0.000 abstract description 2
- 230000003670 easy-to-clean Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 13
- 238000005273 aeration Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005276 aerator Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Nozzles (AREA)
Abstract
A kind of jet nozzle of quick coupling structure, it is characterized in that, it include: outer nozzle connector, inner nozzle connector and sleeve, wherein, the sleeve is equipped with sleeve air inlet, its inner wall is equipped with internal screw thread, and outer nozzle tube wall is equipped with the external screw thread and sealing ring matched with internal thread of sleeve, and inner nozzle tube wall is equipped with the external screw thread matched with internal thread of sleeve；The sleeve is equipped with pressure ring nut, and sleeve and outer nozzle are fastened.The jet nozzle of quick coupling structure provided by the utility model, assembled by inner nozzle connector, outer nozzle connector and sleeve, it can be achieved that its to fast assembling-disassembling, easy to clean and replacement；Using more air intake ducts or twin-inlet air inlet, mixing chamber gas phase and liquid phase mixing more evenly, improve coefficient of oxygen utilization, while eliminating the indoor turbulent flow dead angle of mixing, reduce the probability of deposition fouling；Fluidic nozzle configurations are simple, easily operated, are suitable for industrial application.
Description
Technical field
The utility model relates to jet aerator technical field more particularly to a kind of quick coupling structure jet nozzles.
Background technique
In biochemical wastewater treatment, it is necessary to sewage aeration is allowed, so that oxidizing decomposes dirty Organic substance in water and maintains micro- life
Oxygen needed for object vital movement.Wherein, jet-flow aeration method is with its higher dynamic efficiency and coefficient of oxygen utilization at biochemical sewage
It occupies an important position in reason.Jet-flow aeration is the swabbing action using high-speed water jet to air and is oxygenated sewage, is utilized
Strength turbulence that jet stream is formed after mixing with air reaches mixing wastewater with air.Since jet-flow aeration has oxygenation capacity strong, oxygen benefit
It is high (blast aeration is generally 6~10%, and jet-flow aeration is generally 30~50%) with rate, thus power consumption saves, and operating cost is low etc.
Advantage occupies an important position in biochemical wastewater treatment.
Currently, the core component of well known air supply jet aerator is by two coaxial interior sprays with circular cross-section
Mouth and outer nozzle composition.Treatment fluid flow generates negative pressure when spraying via inner nozzle high speed, and draws low pressure air is distributed via air
Cabin enters outer nozzle.In outer nozzle, high speed liquid flow shears air and forms air-liquid mixing.Gas-liquid two-phase body leaves nozzle injection
After entering waste water space, to horizontal motion, and surrounding liquid is swept along to continue to move together, while discharging a large amount of tiny bubbles,
Form oxygen transmitting and stirring and mixing effect.But it is moved in horizontal direction since liquid leaves inner nozzle, in outer nozzle internal cavities
Turbulent flow dead angle easy to form, calcium carbonate and calcium sulfate in water are easy deposition and the fouling in nozzle inner walls, to cause nozzle
Blocking.The inner and outer nozzles of existing jet aerator are integrated, not easy cleanings, and inner nozzle or outer in use
Nozzle is impaired, needs integral replacing, and maintenance cost is high.
Utility model content
Above of the existing technology to solve the problems, such as, the purpose of the utility model is to provide a kind of quick coupling structures
Jet nozzle is easy to the cleaning of outer nozzle internal cavities, and can realize being individually replaced for inner and outer nozzles connector.
The utility model uses following technical scheme:
A kind of jet nozzle of quick coupling structure, comprising: outer nozzle connector, inner nozzle connector and sleeve, in which:
The sleeve is equipped with sleeve air inlet, and inner wall is equipped with internal screw thread；
The outer nozzle connector includes outer nozzle tube body, outer nozzle choke and outer nozzle spout, outer nozzle choke one
End connection outer nozzle tube body, the other end are equipped with outer nozzle spout, and the outer nozzle tube wall is equipped with to match with internal thread of sleeve
The external screw thread of conjunction；
The inner nozzle connector includes inner nozzle tube body, inner nozzle choke, inner nozzle water inlet and inner nozzle spout；
The inner nozzle spout is set to the end of the inner nozzle choke, and one end of the inner nozzle tube body is connected to the inner nozzle contracting
Oral area, the other end are connected to the inner nozzle water inlet；The inner nozzle tube wall is outer equipped with what is matched with internal thread of sleeve
Screw thread；
The sleeve is equipped with pressure ring nut, and one end of the pressure ring nut abuts the outer nozzle tube body or interior spray group
The outer wall of tube body, the outer nozzle tube body or inner nozzle tube body is equipped with sealing ring, and the sealing ring is located at that the sleeve is interior, institute
State the side of pressure ring nut.
In an advantageous embodiment, the shape of the outer nozzle choke becomes narrow gradually from one end to the other side, outer spray
Mouth tube body is connected with wide portion one end of outer nozzle choke, outer nozzle notch setting outer nozzle choke narrow portion one
End.
In an advantageous embodiment, the shape of inner nozzle choke becomes narrow gradually from one end to the other side, inner nozzle pipe
Body is connected with wide portion one end of inner nozzle choke, and inner nozzle notch setting is in one end of the narrow portion of inner nozzle choke.
In an advantageous embodiment, chamber made of the inner nozzle tube body, the sleeve, the outer nozzle tube body surround
Room is mixing chamber, and the inner nozzle spout and the inner nozzle choke are located in the mixing chamber, and the sleeve air inlet connects
Lead to the mixing chamber.
In an advantageous embodiment, the inner nozzle tube body is identical with the outer nozzle pipe diameter, and the interior spray
Mouth tube body is equipped with the retention bead towards outer nozzle tube body close to the side of the outer nozzle tube body, and the outer nozzle tube body is equipped with
The groove matched with the retention bead, the retention bead are engaged in the groove, and the outer nozzle tube body is equipped with
Outer nozzle air inlet, the outer nozzle air inlet are connected to the sleeve air inlet.
In an advantageous embodiment, the sleeve can be straight-through for internal thread.
In an advantageous embodiment, it is equipped with porous insulation set in the mixing chamber, and forms barrier between outer nozzle
Chamber, the porous insulation are put on equipped with multiple air inlets, and the outer nozzle air inlet is connected to the barrier chamber.
Preferably, gas enters the barrier chamber from outer nozzle air inlet, is then put on and is set by the porous insulation
The multiple air inlets set enter mixing chamber, each air inlet being connected to inlet channel become an air intake duct, formed it is multiple into
Air flue.
In an advantageous embodiment, there are two the sleeve air inlets, the opposite two sides of the sleeve are located at.
Preferably, gas enters mixing chamber from the outer nozzle air inlet of opposite sides, forms binary channels air inlet.
It compares with the prior art, the jet nozzle of quick coupling structure provided by the utility model, inner nozzle connector,
Outer nozzle connector is detachably connected with sleeve, can quickly be disassembled and installed to jet nozzle, be easily mixed the clear of room
The replacement of reason and inner and outer nozzles；Using more air intake ducts or twin-inlet air inlet, mixing chamber gas phase and liquid phase are mixed
Close more evenly, jet body discharge bubble can more fine uniform, to improve coefficient of oxygen utilization, while being conducive to eliminate in mixing chamber
Turbulent flow dead angle, reduce deposition fouling probability；Structure is simple, easily operated, is suitable for industrial application.
Detailed description of the invention
Attached drawing is constituted part of this application to be used to provide further understanding of the present application, the schematic implementation of the application
Example and its explanation are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the jet nozzle for the quick coupling structure that embodiment 1 provides；
Fig. 2 is the structural schematic diagram of the jet nozzle for the quick coupling structure that embodiment 2 provides；
Fig. 3 is the attachment structure schematic diagram of embodiment 2 China and foreign countries' nozzle body and inner nozzle tube body.
Marginal data:
1, inner nozzle connector；11, inner nozzle water inlet；12, inner nozzle tube body；13, inner nozzle choke；14, inner nozzle
Spout, 2, outer nozzle connector；22, outer nozzle tube body；221, groove；222, outer nozzle air inlet；23, outer nozzle choke；24,
Outer nozzle spout；3, mixing chamber；4, chamber is obstructed；41, porous insulation set；5, sleeve；51, the first air inlet；52, the second air inlet
Mouthful；53, pressure ring nut.
Specific embodiment
The utility model provides a kind of structural schematic diagram of the jet nozzle of quick coupling structure, to make the utility model
Purpose, technical solution and effect are clearer, clear, referring to the drawings and give an actual example to the utility model further specifically
It is bright.It should be appreciated that specific embodiment described herein is not used to limit originally practical new only to explain the utility model
Type.
It should be noted that the specification and claims of the utility model and term " first " in above-mentioned attached drawing,
" second " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order, it should be appreciated that in this way
The data used are interchangeable under appropriate circumstances.In addition, term " includes " and " having " and their any deformation, it is intended that
Being to cover non-exclusive includes to be not necessarily limited to be clearly listed for example, containing a series of system of units, product or equipment
Those of unit, but may include other units being not clearly listed or intrinsic for these products or equipment.
Embodiment 1
As shown in Figure 1, a kind of jet nozzle of quick coupling structure, comprising: outer nozzle connector 2, inner nozzle connector 1 and set
Cylinder 5.Wherein, sleeve 5 is equipped with first sleeve air inlet 51 and second sleeve air inlet 52, first sleeve air inlet 51 and second
Sleeve air inlet 52 is oppositely arranged, and 5 inner wall of sleeve is equipped with internal screw thread；Outer nozzle connector 2 includes outer nozzle tube body 22, outer nozzle
Choke 23 and outer nozzle spout 24,23 one end of outer nozzle choke connect outer nozzle tube body 22, and the other end is sprayed equipped with outer nozzle
Mouth 23, the shape of the outer nozzle choke 23 becomes narrow gradually from one end to the other side, outer nozzle tube body 22 and outer nozzle necking
The wide portion one end in portion 23 is connected, and one end of the narrow portion of outer nozzle choke 23 is arranged in outer nozzle spout 24.Outer nozzle tube body
22 outer wall is equipped with the external screw thread matched with 5 internal screw thread of sleeve；Inner nozzle connector 1 includes inner nozzle tube body 12, inner nozzle contracting
Oral area 13 and inner nozzle spout 14, the shape of inner nozzle choke 13 become narrow gradually from one end to the other side, inner nozzle tube body
12 are connected with wide portion one end of inner nozzle choke 13, and the one of the narrow portion of inner nozzle choke 13 is arranged in inner nozzle spout 14
End.Sleeve 5 is equipped with screw hole through-hole and the pressure ring nut 53 with the cooperation of screw hole through-hole, can be sleeve by pressure ring nut 53
5 tighten together with outer nozzle tube body 22.The outer wall of outer nozzle tube body 22 is equipped with sealing ring (not marking in figure), the sealing
Ring is located at the side of the inside of the sleeve 5, pressure ring nut 53.
Cavity made of inner nozzle tube body 12, outer nozzle tube body 22 and casing 5 surround is mixing chamber 3, inner nozzle necking
Portion 13 and inner nozzle spout 14 are located in mixing chamber 3.Inner nozzle connector 1 and outer nozzle connector 2 are coaxially disposed, inner nozzle tube body 12
Pass through the threaded connection matched from the two sides of casing 5 respectively with outer nozzle tube body 22, and is sealed by sealing ring.
The jet nozzle of quick coupling structure provided in this embodiment, its working principle is that:
Inner nozzle connector 1 and outer nozzle connector 2 are located at the two sides of sleeve 5, and by matching internal and external threads and close
Seal ring is sealably coupled to, and is fastened by pressure ring nut 53.The inner nozzle of water in treatment tank from inner nozzle connector 1
14 high speed of spout is ejected into mixing chamber 3, generates negative pressure in mixing chamber 3, passes through first sleeve air inlet 51 and second sleeve air inlet
Mouth 53 aspirates outside airs and enters mixing chamber 3.In mixing chamber 3, high speed liquid flow shear air formed air-liquid mixing, two into
The setting of port makes to form double air passage air inlet in mixing chamber 3, and gas-liquid mixed is uniform, improves coefficient of oxygen utilization.Gas-liquid two-phase body from
Mixing chamber 3 is opened, spurts into treatment tank from outer nozzle spout 24.
Embodiment 2
As shown in Fig. 2, a kind of jet nozzle of quick coupling structure, comprising: outer nozzle connector 2, inner nozzle connector 1 and set
Cylinder 5.Wherein, sleeve 5 is equipped with first sleeve air inlet 51 and 5 inner wall of sleeve is equipped with internal screw thread；Outer nozzle connector 2 includes outer spray
Mouth tube body 22, outer nozzle choke 23 and outer nozzle spout 24,23 one end of outer nozzle choke connects outer nozzle tube body 22, another
End is equipped with outer nozzle spout 23, and the shape of the outer nozzle choke 23 becomes narrow gradually from one end to the other side, outer nozzle tube body
22 are connected with wide portion one end of outer nozzle choke 23, and the one of the narrow portion of outer nozzle choke 23 is arranged in outer nozzle spout 24
End.The outer wall of outer nozzle tube body 22 is equipped with the external screw thread matched with internal thread of sleeve；Inner nozzle connector 1 includes inner nozzle tube body
12, inner nozzle choke 13 and inner nozzle spout 14, the shape of inner nozzle choke 13 gradually become from one end to the other side
Narrow, inner nozzle tube body 12 is connected with wide portion one end of inner nozzle choke 13, and inner nozzle spout 14 is arranged in inner nozzle necking
One end of the narrow portion in portion 13.
As shown in figure 3, inner nozzle tube body 12 is identical as the diameter of outer nozzle tube body 22, and inner nozzle tube body 12 is close to outer spray
The side of mouth connector 2 is equipped with the retention bead 121 towards outer nozzle connector 2, and outer nozzle tube body 22 is equipped with and the limit convex 121
The groove 221 matched is acted, retention bead 121 is engaged in groove 221, and outer nozzle tube body 22 is equipped with outer nozzle air inlet
222.As shown in Fig. 2, the outer nozzle air inlet 222 is connected to the first sleeve air inlet 51.Inner nozzle tube body 12 and outer
The chamber formed between nozzle body 22, outer nozzle choke 23 is mixing chamber 3, inner nozzle choke 13 and inner nozzle spout 14
In mixing chamber 3.The porous insulation set 41 of annular is connected on 22 inner wall of outer nozzle tube body, porous insulation set 41 is located at described
In mixing chamber 3, and barrier chamber 4 is formed between outer nozzle tube body 22, the connection barrier chamber 4 of outer nozzle air inlet 222.
As shown in Fig. 2, sleeve 5 is equipped with screw hole through-hole and the pressure ring nut 53 with the cooperation of screw hole through-hole, pass through pressure ring
Nut 53 can tighten together sleeve 5 with outer nozzle tube body 22.The outer wall of outer nozzle tube body 22 is equipped with sealing ring (in figure
Do not mark), the sealing ring is located at the inside of the sleeve 5, pressure ring nut 53 close to the side of inner nozzle 1.
The jet nozzle of quick coupling structure provided in this embodiment, its working principle is that:
Inner nozzle connector 1 and outer nozzle connector 2 are engaged to together by mutually matched retention bead 121 and groove 221,
Then it is connected together by the screw thread matched with sleeve 5 with sleeve 5, and is fastened by pressure ring nut 53.Treatment tank
In water be ejected into mixing chamber 3 from 14 high speed of inner nozzle spout, negative pressure, work of the ambient atmos in pressure difference are generated in mixing chamber 3
It is sucked, is entered in barrier chamber 4 by the first sleeve air inlet 51 and outer nozzle air inlet 222 that are connected, so under
It is entered inside mixing chamber 3 by by multiple holes on porous insulation set 41.In mixing chamber 3, high speed liquid flow shears air shape
It is mixed at air-liquid, the setting of porous insulation set makes to form multi-airway air inlet in mixing chamber 3, and gas-liquid mixed is uniform, improves oxygen benefit
With rate.Gas-liquid two-phase body leaves mixing chamber 3, spurts into treatment tank from outer nozzle spout 24.
Specific embodiment of the utility model is described in detail above, but it is only used as example, the utility model
It is not restricted to particular embodiments described above.To those skilled in the art, any that this practical is equal
Modifications and substitutions are also all among the scope of the utility model.Therefore, the institute under the spirit and scope for not departing from the utility model
The equal transformation and modification of work, should all cover in the scope of the utility model.
Claims (5)
1. a kind of jet nozzle of quick coupling structure characterized by comprising outer nozzle connector, inner nozzle connector and sleeve,
Wherein:
The sleeve is equipped with sleeve air inlet, and inner wall is equipped with internal screw thread；
The outer nozzle connector includes outer nozzle tube body, outer nozzle choke and outer nozzle spout, and outer nozzle choke one end connects
Connect outer nozzle tube body, the other end is equipped with outer nozzle spout, and the outer nozzle tube wall is equipped with to be matched with internal thread of sleeve
External screw thread；
The inner nozzle connector includes inner nozzle tube body, inner nozzle choke, inner nozzle water inlet and inner nozzle spout；It is described
Inner nozzle spout is set to the end of the inner nozzle choke, and one end of the inner nozzle tube body is connected to the inner nozzle necking
Portion, the other end are connected to the inner nozzle water inlet；The inner nozzle tube wall is equipped with the outer spiral shell matched with internal thread of sleeve
Line；
The sleeve is equipped with pressure ring nut, and one end of the pressure ring nut abuts the outer nozzle tube body or inner nozzle pipe
Body, the outer nozzle tube body or inner nozzle tube wall are equipped with sealing ring, and the sealing ring is located at that the sleeve is interior, the pressure
The side of ring nut.
2. the jet nozzle of quick coupling structure according to claim 1, which is characterized in that the inner nozzle tube body, described
Chamber made of sleeve, the outer nozzle tube body surround is mixing chamber, the inner nozzle spout and inner nozzle necking position
In in the mixing chamber, the sleeve air inlet is connected to the mixing chamber.
3. the jet nozzle of quick coupling structure according to claim 2, which is characterized in that the inner nozzle tube body and described
Outer nozzle pipe diameter is identical, and the inner nozzle tube body is equipped with close to the side of the outer nozzle tube body towards outer nozzle tube body
Retention bead, the outer nozzle tube body is equipped with the groove that matches with the retention bead, and the retention bead is engaged to institute
It states in groove, the outer nozzle tube body is equipped with outer nozzle air inlet, and the outer nozzle air inlet and the sleeve air inlet connect
It is logical.
4. the jet nozzle of quick coupling structure according to claim 2, which is characterized in that be equipped in the mixing chamber porous
Barrier set, and barrier chamber is formed between outer nozzle, the porous insulation is put on equipped with multiple air inlets, the outer nozzle into
Port is connected to the barrier chamber.
5. the jet nozzle of quick coupling structure according to claim 2, which is characterized in that the sleeve air inlet has two
It is a, it is located at the opposite two sides of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920009562.0U CN209519929U (en) | 2019-01-04 | 2019-01-04 | A kind of jet nozzle of quick coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920009562.0U CN209519929U (en) | 2019-01-04 | 2019-01-04 | A kind of jet nozzle of quick coupling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209519929U true CN209519929U (en) | 2019-10-22 |
Family
ID=68229076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920009562.0U Expired - Fee Related CN209519929U (en) | 2019-01-04 | 2019-01-04 | A kind of jet nozzle of quick coupling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209519929U (en) |
-
2019
- 2019-01-04 CN CN201920009562.0U patent/CN209519929U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191022 |