CN111068941A - Sanitation truck and nozzle thereof - Google Patents
Sanitation truck and nozzle thereof Download PDFInfo
- Publication number
- CN111068941A CN111068941A CN202010033736.4A CN202010033736A CN111068941A CN 111068941 A CN111068941 A CN 111068941A CN 202010033736 A CN202010033736 A CN 202010033736A CN 111068941 A CN111068941 A CN 111068941A
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- CN
- China
- Prior art keywords
- nozzle
- water
- valve seat
- valve body
- sanitation vehicle
- 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
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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
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
- B05B1/323—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening the valve member being actuated by the pressure of the fluid to be sprayed
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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
- 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H3/00—Applying liquids to roads or like surfaces, e.g. for dust control; Stationary flushing devices
- E01H3/02—Mobile apparatus, e.g. watering-vehicles
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Nozzles (AREA)
Abstract
The invention provides a nozzle of a sanitation vehicle, which comprises a nozzle valve seat communicated with a water supply pipeline, and a nozzle body fixedly arranged at the water outlet end of the nozzle valve seat, wherein a nozzle opening is formed in the nozzle body; a water spray cavity is defined between the nozzle valve seat and the nozzle body, and a flow distribution hole which is communicated with the water supply pipeline to the water spray cavity is formed in the nozzle valve seat; the water spraying valve seat also extends out to be elastically plugged with the nozzle opening, and the water pressure in the water spraying cavity drives the opened nozzle valve body. Nozzle body and water supply line are connected to the nozzle disk seat, and the water spray valve body elasticity stretches out the nozzle disk seat, with nozzle mouth shutoff, during the water spray, the water spray chamber is introduced by the reposition of redundant personnel hole with spray water to the nozzle disk seat, and the water pressure boost promotes the nozzle valve body and breaks away from with the nozzle mouth in the water spray chamber, opens the nozzle mouth and sprays water, through setting up the nozzle by spring and water pressure automatic control switching, the nozzle valve body carries out the shutoff to the nozzle mouth, gets into impurity when avoiding the nozzle out of work and blocks up. The invention also provides the sanitation vehicle.
Description
Technical Field
The invention relates to the technical field of sanitation trucks, in particular to a sanitation truck and a nozzle thereof.
Background
At present, the nozzle has more application occasions such as cleaning, dust fall and the like. Sanitation trucks such as washing and sweeping trucks, refuse transfer vehicles, etc. have applications of nozzles. The nozzle on the sweeping machine is mainly used for dust fall, the washing and sweeping machine is mainly used for cleaning the road surface, and the garbage transfer vehicle is mainly used for cleaning the interior of the box body after unloading. At present, a dust-settling nozzle in a suction pipe of a sweeping machine is easy to block, when the garbage transfer vehicle uses the nozzle to clean an inner cavity, the nozzle is soaked in wet garbage for a long time when not working, and is also easy to block, if the nozzle in the suction pipe of the sweeping machine is blocked, the nozzle needs to be detached for dredging, the dust-settling effect is reduced, and the general nozzle is installed on the inner wall surface of a cavity, so that the detaching difficulty is high, and the maintenance workload of a sanitation vehicle is increased.
Therefore, how to avoid the blockage of the nozzle of the sanitation truck is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a nozzle of a sanitation vehicle, so as to avoid the blockage of the nozzle of the sanitation vehicle; the invention also provides the sanitation vehicle.
In order to achieve the purpose, the invention provides the following technical scheme:
a nozzle of a sanitation vehicle comprises a nozzle valve seat communicated with a water supply pipeline and a nozzle body fixedly arranged at the water outlet end of the nozzle valve seat, wherein a nozzle opening is formed in the nozzle body;
a water spray cavity is defined between the nozzle valve seat and the nozzle body, and a flow dividing hole which is communicated with the water supply pipeline to the water spray cavity is formed in the nozzle valve seat;
the water spraying valve seat also extends out to be elastically plugged with the nozzle opening, and the water pressure in the water spraying cavity drives the opened nozzle valve body.
Preferably, in the sanitation truck nozzle, the nozzle body is a nozzle cap covering the top of the nozzle valve seat, and the nozzle opening is arranged in the middle of the nozzle cap.
Preferably, in the sanitation vehicle nozzle, the nozzle valve body is coaxially arranged on the nozzle valve seat, and a support spring elastically supporting the nozzle valve body is mounted in a valve body mounting hole in the nozzle valve seat.
Preferably, in the sanitation vehicle nozzle, the nozzle valve seat is further provided with a vent hole for communicating the bottom of the valve body mounting hole with the outside of the nozzle valve seat.
Preferably, in the sanitation vehicle nozzle, the flow distribution hole includes a plurality of flow distribution holes arranged in the nozzle valve seat and around a circumference of the valve body mounting hole.
Preferably, in the nozzle of the sanitation vehicle, an avoidance space for avoiding the vent hole is reserved between the plurality of the branch flow holes.
Preferably, in the sanitation vehicle nozzle, the diversion hole is a diversion inclined hole obliquely arranged along the circumferential direction of the nozzle valve seat.
Preferably, in the above sanitation vehicle nozzle, the flow dividing holes are arranged opposite to an inner wall of the nozzle body, being inclined radially outward of the nozzle valve seat.
Preferably, in the sanitation truck nozzle, the nozzle opening comprises a water spraying hole for spraying water and a conical diversion hole communicated with the water spraying cavity and used for guiding water;
the nozzle valve body comprises a first plugging part which is in plug-in fit with the water spraying hole, a second conical surface plugging part which is in compression fit with the conical flow guide hole, and a third conical surface flow guide part which is in clearance fit with the conical flow guide hole and guides water into the nozzle valve body.
A sanitation vehicle is provided with a nozzle for spraying cleaning or dust-reducing water, and is characterized in that the nozzle is the sanitation vehicle nozzle.
The invention provides a nozzle of a sanitation truck, which comprises a nozzle valve seat communicated with a water supply pipeline, and a nozzle body fixedly arranged at the water outlet end of the nozzle valve seat, wherein a nozzle opening is formed in the nozzle body; a water spray cavity is defined between the nozzle valve seat and the nozzle body, and a flow distribution hole which is communicated with the water supply pipeline to the water spray cavity is formed in the nozzle valve seat; the water spraying valve seat also extends out to be elastically plugged with the nozzle opening, and the water pressure in the water spraying cavity drives the opened nozzle valve body. The nozzle is spout spray water by the nozzle body by the nozzle mouth, nozzle body and water supply line are connected to the nozzle disk seat, the water spray valve body elasticity stretches out the nozzle disk seat, with the shutoff of nozzle mouth, during the water spray, the water spray chamber is introduced to spray water by the reposition of redundant personnel hole with spray water to the nozzle disk seat, the water pressure boost in the water spray chamber promotes nozzle valve body and breaks away from with the nozzle mouth, open the nozzle mouth and spray water, through setting up the nozzle by spring and water pressure automatic control switching, the nozzle valve body carries out the shutoff to the nozzle mouth, get into the impurity jam when avoiding the nozzle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of a sanitation vehicle nozzle provided in accordance with the present invention;
FIG. 2 is a right side view of the nozzle of the sanitation vehicle of FIG. 1;
FIG. 3 is a schematic view of the structure of the nozzle of the sanitation vehicle of FIG. 1 showing the direction of the vent holes;
FIG. 4 is a schematic view of the nozzle valve body of the nozzle of the sanitation vehicle of FIG. 1;
FIG. 5 is a sectional view of the nozzle A-A of the toilet truck of FIG. 2;
FIG. 6 is a cross-sectional view of the nozzle B-B of the toilet truck of FIG. 2;
FIG. 7 is a schematic structural view of the nozzle valve body of the sanitation truck nozzle of FIG. 6 after sliding.
Detailed Description
The invention discloses a nozzle of a sanitation vehicle, which avoids the blockage of the nozzle of the sanitation vehicle; the invention also provides the sanitation vehicle.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-7, fig. 1 is a front view of a nozzle of a sanitation vehicle provided by the present invention; FIG. 2 is a right side view of the nozzle of the sanitation vehicle of FIG. 1; FIG. 3 is a schematic view of the structure of the nozzle of the sanitation vehicle of FIG. 1 showing the direction of the vent holes; FIG. 4 is a schematic view of the nozzle valve body of the nozzle of the sanitation vehicle of FIG. 1; FIG. 5 is a sectional view of the nozzle A-A of the toilet truck of FIG. 2; FIG. 6 is a cross-sectional view of the nozzle B-B of the toilet truck of FIG. 2; FIG. 7 is a schematic structural view of the nozzle valve body of the sanitation truck nozzle of FIG. 6 after sliding.
The embodiment provides a nozzle of a sanitation vehicle, which comprises a nozzle valve seat 1 communicated with a water supply pipeline, and a nozzle body 2 fixedly arranged at the water outlet end of the nozzle valve seat 1, wherein a nozzle opening 21 is formed in the nozzle body 2; a water spray cavity 5 is defined between the nozzle valve seat 1 and the nozzle body 2, and a branch hole 11 which is communicated with a water supply pipeline to the water spray cavity 5 is formed in the nozzle valve seat 1; the water spraying valve seat 1 also extends out to be elastically blocked with the nozzle opening 21, and the water pressure in the water spraying cavity 5 drives the opened nozzle valve body 3. The nozzle is by nozzle body 2 with spray water by nozzle mouth 21 blowout, nozzle disk seat 1 connects nozzle body 2 and water supply line, water spray valve body 3 elasticity stretches out nozzle disk seat 1, with nozzle mouth 21 shutoff, during the water spray, nozzle disk seat 1 introduces spray water to spray chamber 5 by reposition of redundant personnel hole 11, water pressure boost promotion nozzle valve body 3 breaks away from with nozzle mouth 21 in spray chamber 5, open nozzle mouth 21 and spray water, stretch out by elasticity and water pressure automatic control switching through setting up the nozzle, the nozzle valve body carries out the shutoff to the nozzle mouth, get into impurity when avoiding the nozzle out of work and block up.
In one embodiment of the present disclosure, the nozzle body 2 is a nozzle cap covering the top of the nozzle valve seat 1, and the nozzle opening 21 is disposed in the middle of the nozzle cap. Nozzle disk seat 1 and nozzle body 2 all adopt solid of revolution structure, and the outer lane of the two all sets up the assembly and the dismantlement of the two of being convenient for hexagonal structure, and nozzle body 2 adopts cap structure, and the cover is located on nozzle disk seat 1, and the preferred two adopts threaded connection, guarantees the joint strength of high pressure water spray in-process. The nozzle opening 21 is arranged in the middle of the nozzle cap, and the extending direction of the nozzle body 2 is the spraying direction of the sprayed water.
In one embodiment of the present disclosure, the nozzle valve body 3 is coaxially disposed on the nozzle valve seat 1, and a support spring 4 for elastically supporting the nozzle valve body 3 is mounted in a valve body mounting hole in the nozzle valve seat 1. The nozzle valve body 3 and the nozzle opening 21 are coaxially arranged, the nozzle valve body 3 is used for plugging and opening the nozzle opening 21 in the extending direction of the nozzle valve seat 1, spray water enters the water spraying cavity 5 through the flow dividing hole 11, the high-pressure water in the water spraying cavity 5 provides pushing pressure for opening the nozzle valve body 1, a valve body mounting hole is formed in the nozzle valve seat 1, the nozzle valve body 3 can be mounted in the valve body mounting hole in a sliding mode, the supporting spring 4 is mounted at the bottom of the nozzle valve body 3 and provides supporting elastic force for ejecting the nozzle valve body 3, and after the spray water is closed, the nozzle valve body 3 is pushed to slide to plug the nozzle opening 21. Through setting up by supporting spring 4 and spray the nozzle valve body 3 that water pressure opened or the shutoff action, avoid impurity to get into the water spray intracavity when the nozzle is out of work, effectively avoid the shutoff.
In an embodiment of the present disclosure, the nozzle valve seat 1 is further provided with a vent hole 12 communicating the bottom of the valve body mounting hole to the outside of the nozzle valve seat 1. The nozzle valve body 3 slides in the valve seat mounting hole, and the bottom of the nozzle valve body is provided with a vent hole 12 to avoid sliding resistance caused by compressed air in the sliding process. The vent hole 12 is communicated to the outside of the nozzle valve seat 1, and when the nozzle valve seat is used for environmental sanitation, the vent hole is directly communicated to the outside pure atmosphere, so that the condition that a garbage bearing space where the environmental sanitation vehicle is located blocks the vent hole is avoided.
In one embodiment of the present disclosure, the flow splitting orifice 11 comprises a plurality of flow splitting orifices disposed within the nozzle valve seat 1 and circumferentially around the valve body mounting bore. The water supply pipeline of the end part of the nozzle valve seat 1 is communicated with the flow distribution holes 11, in order to ensure that spray water smoothly enters the front-end water spraying cavity 5 from the tail part of the nozzle valve seat 1 and provide enough water spraying pressure and effectively avoid a valve nozzle mounting hole at the shaft position of the nozzle valve seat 1, the flow distribution holes 11 are provided with a plurality of circumferentially arranged surrounding valve body mounting holes, and the smooth spraying of water flow is ensured.
Specifically, an avoidance space 14 for avoiding the vent hole is reserved between the plurality of branch flow holes 11. The vent holes 12 penetrate through the radial communicated external space of the nozzle valve seat 1, and the plurality of branch flow holes 12 which are arranged in a surrounding mode from two sides of the avoidance space 14 and are distributed uniformly, so that the influence of the arrangement of the branch flow holes on the structural strength of the nozzle valve seat is avoided.
In one embodiment of the present disclosure, the diversion hole 11 is a diversion inclined hole obliquely arranged along the circumferential direction of the nozzle valve seat 1. The nozzle valve body 3 is coaxially arranged in the middle of the nozzle valve seat 1, the shunting holes 11 are led from the periphery of the water spraying cavity 5 to converge to the middle of the water spraying cavity 5, and the nozzle valve body 3 is extruded. The shunting holes are obliquely arranged.
Specifically, the branch flow holes 11 are arranged opposite to the inner wall of the nozzle body, inclined radially outward of the nozzle valve seat 1. That is, the diversion holes 11 are arranged obliquely along the axial direction in the spraying direction, and as shown in fig. 6, the sprayed water flows in a rotating water flow, spirally extrudes the nozzle valve body 3 and smoothly pushes out upwards; meanwhile, the spraying direction is sprayed to the outer side of the water spraying cavity 5, as shown in fig. 5, the problem that the nozzle opening is smoothly opened due to the fact that the nozzle valve body is influenced by impact inclination because the water spraying pressure directly impacts the water spraying valve body is avoided.
In one embodiment, the nozzle opening 21 includes a water jet hole 211 for jetting water, and a conical guide hole 212 communicating with the water jet chamber for guiding water; the nozzle body 3 includes a first plug portion 31 which is fitted into the water discharge hole 211, a second tapered plug portion 32 which is press-fitted into the tapered guide hole 212, and a third tapered guide portion 33 which is clearance-fitted into the tapered guide hole 212 and guides water. Need realize inseparable sealed simultaneously between nozzle valve body 3 and the nozzle mouth 21, avoid the inside rubbish of sanitation car to deposit the environment and lead to sewage impurity to get into and produce the jam, need guarantee simultaneously by the shower water that the reposition of redundant personnel hole got into smoothly with the nozzle valve body to extrude one side release of supporting spring.
The nozzle opening 21 is provided with a water spraying hole 211 with a circular through hole, and a first plugging part 31 with a cylindrical structure corresponding to the nozzle valve body 3 is tightly matched with the nozzle opening to finish primary plugging; the conical diversion hole 212 is disposed on the nozzle body 2, and communicates the water spray hole 211 and the water spray cavity 5, and is a conical structure with an inner diameter gradually expanding from the water spray hole 211 to the water spray cavity 5, so that the spray water in the water spray cavity 5 can be smoothly converged and sprayed out. Meanwhile, by utilizing the structure of the tapered flow guide hole 212, the nozzle valve body 3 is provided with a third tapered flow guide part 33 which is arranged in a step structure with the second tapered flow guide part 32, and after the second tapered blocking part 32 is attached to the tapered flow guide hole 212, a pushing space for pushing the nozzle valve body to move upwards is enclosed between the third tapered flow guide part 33 and the tapered flow guide hole 212, so that smooth pushing of the nozzle valve body is further ensured.
Based on the nozzle of the sanitation vehicle provided in the above embodiment, the invention further provides the sanitation vehicle, wherein the nozzle for spraying cleaning or dust-reducing water is arranged on the sanitation vehicle, and the nozzle arranged on the sanitation vehicle is the nozzle of the sanitation vehicle provided in the above embodiment.
Because the sanitation vehicle adopts the nozzle of the sanitation vehicle in the embodiment, please refer to the embodiment for the beneficial effects brought by the nozzle of the sanitation vehicle.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A nozzle of a sanitation vehicle is characterized by comprising a nozzle valve seat communicated with a water supply pipeline and a nozzle body fixedly arranged at the water outlet end of the nozzle valve seat, wherein a nozzle opening is formed in the nozzle body;
a water spray cavity is defined between the nozzle valve seat and the nozzle body, and a flow dividing hole which is communicated with the water supply pipeline to the water spray cavity is formed in the nozzle valve seat;
the water spraying valve seat also extends out to be elastically plugged with the nozzle opening, and the water pressure in the water spraying cavity drives the opened nozzle valve body.
2. The sanitation vehicle nozzle of claim 1, wherein said nozzle body is a nozzle cap covering the top of said nozzle valve seat, said nozzle opening being provided in the middle of said nozzle cap.
3. The sanitation vehicle nozzle of claim 2, wherein said nozzle valve body is coaxially disposed on said nozzle valve seat, and a support spring resiliently supporting said nozzle valve body is mounted in a valve body mounting hole in said nozzle valve seat.
4. The sanitation vehicle nozzle of claim 3, wherein the nozzle valve seat is further provided with a vent hole communicating the bottom of the valve body mounting hole to the outside of the nozzle valve seat.
5. The sanitation vehicle nozzle of claim 4, wherein the diverter aperture comprises a plurality of circumferentially disposed orifices disposed within the nozzle valve seat and surrounding the valve body mounting aperture.
6. The nozzle of claim 5, wherein an avoiding space for avoiding the vent hole is reserved among the plurality of the branch flow holes.
7. The sanitation vehicle nozzle of claim 5, wherein the splitter orifice is a splitter angled orifice arranged obliquely to a circumferential direction of the nozzle valve seat.
8. The sanitation vehicle nozzle of claim 7, wherein said diverter aperture is disposed opposite an inner wall of said nozzle body, radially outwardly inclined from said nozzle valve seat.
9. The sanitation vehicle nozzle of claim 3, wherein the nozzle opening comprises a water spray hole for spraying water and a conical diversion hole communicated with the water spray cavity for guiding water;
the nozzle valve body comprises a first plugging part which is in plug-in fit with the water spraying hole, a second conical surface plugging part which is in compression fit with the conical flow guide hole, and a third conical surface flow guide part which is in clearance fit with the conical flow guide hole and guides water into the nozzle valve body.
10. A sanitation vehicle provided with nozzles for spraying cleaning or dust reducing water, wherein the nozzles are as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010033736.4A CN111068941A (en) | 2020-01-13 | 2020-01-13 | Sanitation truck and nozzle thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010033736.4A CN111068941A (en) | 2020-01-13 | 2020-01-13 | Sanitation truck and nozzle thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111068941A true CN111068941A (en) | 2020-04-28 |
Family
ID=70323133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010033736.4A Pending CN111068941A (en) | 2020-01-13 | 2020-01-13 | Sanitation truck and nozzle thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111068941A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441298A (en) * | 2021-07-28 | 2021-09-28 | 宁波震裕科技股份有限公司 | Glue spraying nozzle for manufacturing new energy automobile motor iron core and glue spraying method thereof |
-
2020
- 2020-01-13 CN CN202010033736.4A patent/CN111068941A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441298A (en) * | 2021-07-28 | 2021-09-28 | 宁波震裕科技股份有限公司 | Glue spraying nozzle for manufacturing new energy automobile motor iron core and glue spraying method thereof |
| CN113441298B (en) * | 2021-07-28 | 2022-03-22 | 宁波震裕科技股份有限公司 | Glue spraying nozzle for manufacturing new energy automobile motor iron core and glue spraying method thereof |
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