CN204682302U - A kind of external cannula type anti-dripping valve - Google Patents
A kind of external cannula type anti-dripping valve Download PDFInfo
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- CN204682302U CN204682302U CN201520223363.1U CN201520223363U CN204682302U CN 204682302 U CN204682302 U CN 204682302U CN 201520223363 U CN201520223363 U CN 201520223363U CN 204682302 U CN204682302 U CN 204682302U
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- valve body
- intubate
- liquid outlet
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Abstract
The utility model discloses a kind of external cannula type anti-dripping valve, comprise valve body, anti-drip device, shower nozzle, clamping apparatus.Described anti-drip device comprises antidrip cavity, diaphragm, elastomeric composition part, and diaphragm blocks the circulation of liquid in valve body under the effect of elastomeric composition part; Shower nozzle is arranged on valve body, and sprinkler head is communicated with the liquid outlet of valve body; Clamping apparatus is located at the top of valve body, and the upper fastener in clamping apparatus and lower fastener form a bayonet socket, and bayonet socket is fastened on spraying machine spray lance.The sidewall of described valve body is provided with a pair intubate, and the surface of intubate is provided with the annular cartridge part of pawl shape.Infusion pipeline (flexible pipe) segmentation of sprayer is connected in series with intubate, and liquid flows into intubate by infusion pipeline, then flows into valve body.Certain swelling effect can be played to infusion pipeline in annular cartridge part in intubate, and infusion pipeline is not easily departed from intubate, and, also play sealing function.Therefore, anti-dripping valve can be convenient and be effectively communicated with the infusion pipeline on spraying machine spray lance.
Description
Technical field
The utility model relates to agricultural machinery technological field, in particular to the external cannula type anti-dripping valve on a kind of field sprayer.
Background technology
Existing field sprayer installs 10 to 40 anti-dripping valves on spray boom.During sprayer work, pressure liquid overcomes spring pressure in anti-dripping valve import department and backs down diaphragm, enters into the shower nozzle being arranged on anti-dripping valve outlet, is then sprayed by after flame atomization.When sprayer interline transfer or stop-spraying liquid, closed by spraying system main control valve, to remove pipeline liquid pressure, when liquid pressure convergence zero-pressure, anti-dripping valve can be closed rapidly within 1 ~ 2 second, prevents liquid from producing water clock.
Utility model content
The technical problem that the utility model solves: how convenient and effectively anti-dripping valve is communicated with the infusion pipeline of spraying machine spray lance.
The utility model provides following technical scheme:
A kind of external cannula type anti-dripping valve, comprises valve body, anti-drip device, shower nozzle, clamping apparatus;
Described valve body comprises feed liquor chamber, fluid chamber, liquid outlet channel, liquid outlet, described feed liquor chamber cylindrically, described fluid chamber is cylindric, the center line of cylindric feed liquor chamber overlaps with the center line of columned fluid chamber, one end face of feed liquor chamber and an end face of fluid chamber and outstanding valve body, the other end of feed liquor chamber and the other end of fluid chamber are closed, and liquid outlet channel is communicated with fluid chamber and liquid outlet;
Described anti-drip device comprises antidrip cavity, diaphragm, elastomeric composition part, described antidrip cavity is screwed onto on valve body, described diaphragm and elastomeric composition part are positioned at antidrip cavity, elastomeric composition part acts on an end face of diaphragm, and the other end of diaphragm is close on the end face that feed liquor chamber and fluid chamber flush;
Described shower nozzle is arranged on valve body, and shower nozzle is communicated with liquid outlet;
Described clamping apparatus is located at the top of valve body, clamping apparatus comprises upper fastener and lower fastener, upper fastener is offered first circular draw-in groove, lower fastener is offered the lower semi-circular draw-in groove that draw-in groove circular with first is relative, first circular draw-in groove and lower semi-circular draw-in groove form a bayonet socket, lower fastener is located on valve body, the side of upper fastener and the side of lower fastener hinged, the opposite side of upper fastener and the opposite side of lower fastener are provided with corresponding threaded fastener installing hole;
The sidewall of described valve body is provided with a pair intubate, and this overlaps to the center line of intubate, and this divides the both sides being listed in valve body to intubate, this is communicated with intubate, and this is to intubate and feed liquor chamber; The surface of described intubate is provided with along the axis of intubate the annular cartridge part that multiple longitudinal cross-section is pawl shape according to the order of sequence.
By technique scheme, the bayonet socket that first circular draw-in groove of clamping apparatus and lower semi-circular draw-in groove are formed is fastened on spraying machine spray lance; Afterwards, the threaded fastener installing hole matching thread securing member of clamping apparatus can lock bayonet socket; Afterwards, infusion pipeline (flexible pipe) segmentation of sprayer is connected in series with a pair intubate described in the utility model, and liquid flows into intubate by infusion pipeline, then flows into valve body by intubate.
Because the utility model adopts intubate to be communicated with the infusion pipeline of sprayer, as long as the infusion pipeline of sprayer is enclosed within intubate tightly, certain swelling effect can be played to infusion pipeline in annular cartridge part in intubate, infusion pipeline is not easily departed from intubate, and sealing function can be played to the connection of infusion pipeline and intubate in the annular cartridge part in intubate.Therefore, adopt technical scheme described in the utility model, can be convenient and be effectively communicated with the infusion pipeline on spraying machine spray lance by anti-dripping valve.
Illustrate the one of intubate as the utility model, above-mentioned a pair intubate is horizontally set on the top of fluid chamber.
Illustrate the one of valve inner structure as the utility model, the cylindric center line of feed liquor chamber and the center line of columned fluid chamber are horizontally disposed with, and described liquid outlet channel is vertically arranged, and the opening of described liquid outlet straight down; Described liquid outlet is positioned at the below of feed liquor chamber and fluid chamber; The antidrip cavity horizontal helical of described anti-drip device is connected on valve body.
Illustrate the integrally-built one of valve body as the utility model, described valve body comprises upper valve body, middle valve body, lower valve body, and the profile of upper valve body, middle valve body, lower valve body is all in cylindric, and the external diameter of middle valve body is greater than the external diameter of upper valve body and lower valve body; The center line of middle valve body is horizontally disposed with, and the center line of upper valve body and lower valve body vertically arranges and overlaps, and the bottom of upper valve body is engaged on the sidewall of middle valve body, and the top of lower valve body is engaged on the sidewall of middle valve body; Described a pair intubate is arranged on the joining place of upper valve body and middle valve body, and described feed liquor chamber and fluid chamber are arranged in middle valve body, and described liquid outlet channel is arranged in lower valve body, and described liquid outlet is arranged on the bottom of lower valve body; One end of described middle valve body and the antidrip cavity of anti-drip device are spirally connected, and described clamping apparatus is located at the top of upper valve body, and described shower nozzle is arranged on the bottom of lower valve body.
As the utility model, the one of clamping apparatus is illustrated, described lower fastener and valve body injection mo(u)lding.Specifically, lower fastener and upper valve body integrated injection molding.For reinforcing the annexation of upper valve body and lower fastener and middle valve body, the lateral wall of upper valve body is circumferentially provided with ribs, the top of ribs connects upper fastener, valve body and intubate in the bottom connection of ribs.
As the utility model, the one of clamping apparatus is illustrated, in the lower semi-circular draw-in groove of described lower fastener, be provided with Blind locating holes; Described upper fastener offers fixed via, and fixed via offers hexagonal groove close to one end of first circular draw-in groove.When being connected on spray boom by clamping apparatus by anti-dripping valve, spray boom can be provided with the backstay coordinated with the utility model Blind locating holes, so, can prevent the anti-dripping valve be connected on spray boom by bayonet socket from sliding along spray bar length direction, play the effect of location.Be fixed on the another kind of form on spray boom as anti-dripping valve, a bolt inserts in the fixed via of upper fastener, and the turret head of bolt is trapped in hexagonal groove; Afterwards, this bolt and spraying machine spray lance are spirally connected, and are fixed on spraying machine spray lance by whole anti-dripping valve.
Illustrate the one of anti-drip device as the utility model, the elastomeric composition part of described anti-drip device comprises diaphragm pushing block, coil tension spring; Described diaphragm pushing block comprises dish type pushed section and spring Access Division, and dish type pushed section is connected with diaphragm, and one end of described coil tension spring is connected on spring Access Division, and the other end of coil tension spring is against in the internal end surface of antidrip cavity.
Based on the above-mentioned explanation to anti-drip device, described diaphragm centre establishes a columned protuberance, and the centre of described dish type pushed section establishes a pit coordinated with protuberance, and described diaphragm and dish type pushed section are linked together with coordinating of pit by protuberance.In real work, elastomeric composition part is easily deformable and lost efficacy, and by above-mentioned design, only need change diaphragm, and without the need to changing whole elastomeric composition part.
Based on the above-mentioned explanation to anti-drip device, described diaphragm pushing block also comprises diaphragm limited block, and diaphragm limited block and diaphragm pushing block divide and be listed in the two ends that Spring Card meets portion.
By the above-mentioned explanation about anti-drip device, when spraying, the liquid being entered valve body by intubate enters feed liquor chamber, during sprinkling, fluid pressure is larger, the liquid of admission chamber indoor overcomes the elastic force of coil tension spring, pushes the diaphragm being close to its port open, and liquid enters in antidrip cavity, due to the bore seal of antidrip cavity, liquid enters fluid chamber by antidrip cavity, then enters liquid outlet channel, then flow to liquid outlet, enter in shower nozzle, by shower nozzle, crop is sprayed.Wherein, when liquid pushes the diaphragm being close to its port open, diaphragm limited block can be against on the end face in antidrip cavity, and confined liquid continues to promote diaphragm, to make the fluid pressure that flows in valve body constant.When stopping spraying, fluid pressure diminishes, and diaphragm resets under the elastic force of coil tension spring, is close on open end that feed liquor chamber and fluid chamber flush, blocks being communicated with of feed liquor chamber and fluid chamber, and then reaches antidrip effect.
Illustrate the one of shower nozzle as the utility model, described shower nozzle comprises nozzle and installs cavity, filter, elastic washer; Described filter comprises filter body and annular encapsulation part, and cylindrically, annular encapsulation part is positioned at the bottom of filter body to filter body; The top seal of filter body, the bottom end opening of filter body, the sidewall of filter body offers filter mesh, and the external diameter of filter body is less than the internal diameter of liquid outlet channel, and the external diameter of annular encapsulation part is greater than the internal diameter of liquid outlet channel; The top of described filter body is upwards inserted in liquid outlet channel from liquid outlet, and annular encapsulation part is against on liquid outlet edge; Described elastic washer is embedded in the middle part in nozzle installation cavity, and nozzle is installed cavity and is connected on valve body, and elastic washer is against in the annular encapsulation part of filter; The bottom that described nozzle installs cavity is provided with nozzle installing hole, is provided with nozzle in nozzle installing hole.
By the above-mentioned explanation for shower nozzle, due to the effect of filter annular encapsulation part, the liquid flowing to liquid outlet from liquid outlet channel can only enter the inner chamber of filter body by the filter mesh of filter, entered in nozzle installing hole by the opening of filter body bottom again, and then outwards sprayed by nozzle.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is the structural representation of a kind of external cannula type anti-dripping valve of the utility model;
Fig. 2 is the exploded view of Fig. 1;
Fig. 3 is the structural representation of valve body 10 in Fig. 1 or Fig. 2;
Fig. 4 is the A-A cutaway view of valve body 10 in Fig. 3;
Fig. 5 is the B-B cutaway view of valve body 10 in Fig. 3;
Fig. 6 is the cutaway view of antidrip cavity 21 in Fig. 2.
Embodiment
As Fig. 1, a kind of external cannula type anti-dripping valve, comprises valve body 10, anti-drip device 20, shower nozzle 30, clamping apparatus 40.
Composition graphs 3, Fig. 4, Fig. 5, described valve body 10 comprises feed liquor chamber 105, fluid chamber 106, liquid outlet channel 104, liquid outlet 102, described feed liquor chamber cylindrically, described fluid chamber is cylindric, the center line of cylindric feed liquor chamber overlaps with the center line of columned fluid chamber, one end face of feed liquor chamber and an end face of fluid chamber and outstanding valve body, the other end of feed liquor chamber and the other end of fluid chamber are closed, and liquid outlet channel is communicated with fluid chamber and liquid outlet.
Composition graphs 3, Fig. 4, the sidewall of described valve body 10 is provided with a pair intubate 14, and this overlaps to the center line of intubate, and this divides the both sides being listed in valve body to intubate, this is communicated with intubate, and this is to intubate and feed liquor chamber; The surface of described intubate is provided with along the axis of intubate the annular cartridge part 140 that multiple longitudinal cross-section is pawl shape according to the order of sequence.Above-mentioned a pair intubate 14 is horizontally set on the top of fluid chamber 106, and the cylindric center line of feed liquor chamber 105 and the center line of columned fluid chamber are horizontally disposed with, and described liquid outlet channel 104 is vertically arranged, and the opening of described liquid outlet 102 straight down; Described liquid outlet is positioned at the below of feed liquor chamber and fluid chamber.
Composition graphs 3, Fig. 4, Fig. 5, described valve body 10 comprises upper valve body 11, middle valve body 12, lower valve body 13, and the profile of upper valve body, middle valve body, lower valve body is all in cylindric, and the external diameter of middle valve body is greater than the external diameter of upper valve body and lower valve body; The center line of middle valve body is horizontally disposed with, and the center line of upper valve body and lower valve body vertically arranges and overlaps, and the bottom of upper valve body is engaged on the sidewall of middle valve body, and the top of lower valve body is engaged on the sidewall of middle valve body; Described a pair intubate 14 is arranged on the joining place of upper valve body and middle valve body, and described feed liquor chamber 105 and fluid chamber 106 are arranged in middle valve body, and described liquid outlet channel 104 is arranged in lower valve body, and described liquid outlet 102 is arranged on the bottom of lower valve body; One end of described middle valve body and the antidrip cavity 21 of anti-drip device 20 are spirally connected, and described clamping apparatus 40 is located at the top of upper valve body, and described shower nozzle 30 is arranged on the bottom of lower valve body.
As Fig. 2, described anti-drip device comprises antidrip cavity 21 (as Fig. 6), diaphragm 22, elastomeric composition part 23, described antidrip cavity horizontal helical is connected on valve body, described diaphragm and elastomeric composition part are positioned at antidrip cavity, elastomeric composition part acts on an end face of diaphragm, and the other end of diaphragm is close on the end face that feed liquor chamber and fluid chamber flush.The elastomeric composition part 23 of described anti-drip device 20 comprises diaphragm pushing block 231, coil tension spring 232; Described diaphragm pushing block comprises dish type pushed section 2311 and spring Access Division 2312, and dish type pushed section is connected with diaphragm 22, and one end of described coil tension spring is connected on spring Access Division, and the other end of coil tension spring is against in the internal end surface of antidrip cavity 21.Described diaphragm 22 centre establishes a columned protuberance 220, and the centre of described dish type pushed section 2311 establishes a pit coordinated with protuberance, and described diaphragm and dish type pushed section are linked together with coordinating of pit by protuberance.Described diaphragm pushing block 231 also comprises diaphragm limited block 2313, and diaphragm limited block and diaphragm pushing block divide and be listed in the two ends that Spring Card meets portion 2312.
As Fig. 2, described shower nozzle 30 is arranged on valve body 10, and shower nozzle is communicated with liquid outlet.Described shower nozzle 30 comprises nozzle and installs cavity 31, filter 32, elastic washer 33; Described filter comprises filter body 321 and annular encapsulation part 322, and cylindrically, annular encapsulation part is positioned at the bottom of filter body to filter body; The top seal of filter body, the bottom end opening of filter body, the sidewall of filter body is offered filter mesh 3210, and the external diameter of filter body is less than the internal diameter of liquid outlet channel 104, and the external diameter of annular encapsulation part is greater than the internal diameter of liquid outlet channel; The top of described filter body is upwards inserted in liquid outlet channel from liquid outlet 106, and annular encapsulation part is against on liquid outlet edge; Described elastic washer is embedded in the middle part in nozzle installation cavity, and nozzle is installed cavity and is connected on valve body 10, and elastic washer is against in the annular encapsulation part of filter; The bottom that described nozzle installs cavity is provided with nozzle installing hole, is provided with nozzle in nozzle installing hole.
Composition graphs 2, Fig. 3, described clamping apparatus 40 is located at the top of valve body, clamping apparatus comprises upper fastener 41 and lower fastener 42, upper fastener is offered first circular draw-in groove, lower fastener is offered the lower semi-circular draw-in groove that draw-in groove circular with first is relative, first circular draw-in groove and lower semi-circular draw-in groove form a bayonet socket 401, and lower fastener is located on valve body, the side of upper fastener and the side of lower fastener hinged, the opposite side of upper fastener and the opposite side of lower fastener are provided with corresponding threaded fastener installing hole 400.Wherein, described lower fastener 42 and valve body 10 integrated injection molding, particularly, lower fastener 42 and upper valve body 11 integrated injection molding; The lateral wall of upper valve body is circumferentially provided with ribs 110, and the top of ribs connects upper fastener 41, valve body 12 and intubate 14 in the bottom connection of ribs.
In described clamping apparatus 40, composition graphs 2, Fig. 3, be provided with Blind locating holes 420 in the lower semi-circular draw-in groove of above-mentioned lower fastener 42; Described upper fastener 41 offers fixed via 410, and fixed via offers hexagonal groove close to one end of first circular draw-in groove.
In practical operation, the bayonet socket 401 that first circular draw-in groove of clamping apparatus 401 and lower semi-circular draw-in groove are formed is fastened on spraying machine spray lance; Afterwards, the threaded fastener installing hole 400 matching thread securing member of clamping apparatus 40 can lock bayonet socket 401; Afterwards, infusion pipeline (flexible pipe) segmentation of sprayer is connected in series with a pair intubate 14 described in the utility model, and liquid flows into intubate 14 by infusion pipeline, then flows into valve body 10 by intubate 14.
The utility model adopts intubate 14 to be communicated with the infusion pipeline of sprayer, the infusion pipeline of sprayer is tightly placed in intubate 14, certain swelling effect can be played to infusion pipeline in annular cartridge part 140 in intubate 14, infusion pipeline is not easily departed from intubate 14, and sealing function can be played to the connection of infusion pipeline and intubate 14 in the annular cartridge part 140 in intubate 14.So, anti-dripping valve described in the utility model can be convenient and be effectively arranged on spraying machine spray lance, is communicated with infusion pipeline.
Above content is only better embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (10)
1. an external cannula type anti-dripping valve, comprises valve body (10), anti-drip device (20), shower nozzle (30), clamping apparatus (40); Described valve body comprises feed liquor chamber (105), fluid chamber (106), liquid outlet channel (104), liquid outlet (102), described feed liquor chamber cylindrically, described fluid chamber is cylindric, the center line of cylindric feed liquor chamber overlaps with the center line of columned fluid chamber, one end face of feed liquor chamber and an end face of fluid chamber and outstanding valve body, the other end of feed liquor chamber and the other end of fluid chamber are closed, and liquid outlet channel is communicated with fluid chamber and liquid outlet; Described anti-drip device comprises antidrip cavity (21), diaphragm (22), elastomeric composition part (23), described antidrip cavity is screwed onto on valve body, described diaphragm and elastomeric composition part are positioned at antidrip cavity, elastomeric composition part acts on an end face of diaphragm, and the other end of diaphragm is close on the end face that feed liquor chamber and fluid chamber flush; Described shower nozzle is arranged on valve body, and shower nozzle is communicated with liquid outlet; Described clamping apparatus is located at the top of valve body, clamping apparatus comprises upper fastener (41) and lower fastener (42), upper fastener is offered first circular draw-in groove, lower fastener is offered the lower semi-circular draw-in groove that draw-in groove circular with first is relative, first circular draw-in groove and lower semi-circular draw-in groove form a bayonet socket (401), lower fastener is located on valve body, the side of upper fastener and the side of lower fastener hinged, the opposite side of upper fastener and the opposite side of lower fastener are provided with corresponding threaded fastener installing hole (400); It is characterized in that: the sidewall of described valve body is provided with a pair intubate (14), and this overlaps to the center line of intubate, and this divides the both sides being listed in valve body to intubate, this is communicated with intubate, and this is to intubate and feed liquor chamber; The surface of described intubate is provided with along the axis of intubate the annular cartridge part (140) that multiple longitudinal cross-section is pawl shape according to the order of sequence.
2. a kind of external cannula type anti-dripping valve as claimed in claim 1, it is characterized in that: above-mentioned a pair intubate (14) is horizontally set on the top of fluid chamber (106), the cylindric center line of feed liquor chamber (105) and the center line of columned fluid chamber are horizontally disposed with, described liquid outlet channel (104) is vertically arranged, and the opening of described liquid outlet (102) straight down; Described liquid outlet is positioned at the below of feed liquor chamber and fluid chamber; Antidrip cavity (21) horizontal helical of described anti-drip device (20) is connected on valve body (10).
3. a kind of external cannula type anti-dripping valve as claimed in claim 1, it is characterized in that: described valve body (10) comprises upper valve body (11), middle valve body (12), lower valve body (13), the profile of upper valve body, middle valve body, lower valve body is all in cylindric, and the external diameter of middle valve body is greater than the external diameter of upper valve body and lower valve body; The center line of middle valve body is horizontally disposed with, and the center line of upper valve body and lower valve body vertically arranges and overlaps, and the bottom of upper valve body is engaged on the sidewall of middle valve body, and the top of lower valve body is engaged on the sidewall of middle valve body; Described a pair intubate (14) is arranged on the joining place of upper valve body and middle valve body, described feed liquor chamber (105) and fluid chamber (106) are arranged in middle valve body, described liquid outlet channel (104) is arranged in lower valve body, and described liquid outlet (102) is arranged on the bottom of lower valve body; One end of described middle valve body and the antidrip cavity (21) of anti-drip device (20) are spirally connected, and described clamping apparatus (40) is located at the top of upper valve body, and described shower nozzle (30) is arranged on the bottom of lower valve body.
4. a kind of external cannula type anti-dripping valve as claimed in claim 1, is characterized in that: described lower fastener (42) and valve body (10) integrated injection molding.
5. a kind of external cannula type anti-dripping valve as claimed in claim 3, is characterized in that: described lower fastener (42) and upper valve body (11) integrated injection molding; The lateral wall of upper valve body is circumferentially provided with ribs (110), the top of ribs connects upper fastener (41), valve body (12) and intubate (14) in the bottom connection of ribs.
6. a kind of external cannula type anti-dripping valve as claimed in claim 1, is characterized in that: be provided with Blind locating holes (420) in the lower semi-circular draw-in groove of described lower fastener (42); Described upper fastener (41) is offered fixed via (410), fixed via offers hexagonal groove close to one end of first circular draw-in groove.
7. a kind of external cannula type anti-dripping valve as claimed in claim 1, is characterized in that: the elastomeric composition part (23) of described anti-drip device (20) comprises diaphragm pushing block (231), coil tension spring (232); Described diaphragm pushing block comprises dish type pushed section (2311) and spring Access Division (2312), dish type pushed section is connected with diaphragm (22), one end of described coil tension spring is connected on spring Access Division, and the other end of coil tension spring is against in the internal end surface of antidrip cavity (21).
8. a kind of external cannula type anti-dripping valve as claimed in claim 7, it is characterized in that: described diaphragm (22) centre establishes a columned protuberance (220), the centre of described dish type pushed section (2311) establishes a pit coordinated with protuberance, and described diaphragm and dish type pushed section are linked together with coordinating of pit by protuberance.
9. a kind of external cannula type anti-dripping valve as claimed in claim 7, it is characterized in that: described diaphragm pushing block (231) also comprises diaphragm limited block (2313), diaphragm limited block and diaphragm pushing block divide and are listed in the two ends that Spring Card connects portion (2312).
10. a kind of external cannula type anti-dripping valve as claimed in claim 1, is characterized in that: described shower nozzle (30) comprises nozzle and installs cavity (31), filter (32), elastic washer (33); Described filter comprises filter body (321) and annular encapsulation part (322), and cylindrically, annular encapsulation part is positioned at the bottom of filter body to filter body; The top seal of filter body, the bottom end opening of filter body, the sidewall of filter body is offered filter mesh (3210), the external diameter of filter body is less than the internal diameter of liquid outlet channel (104), and the external diameter of annular encapsulation part is greater than the internal diameter of liquid outlet channel; The top of described filter body is upwards inserted in liquid outlet channel from liquid outlet (106), and annular encapsulation part is against on liquid outlet edge; Described elastic washer is embedded in the middle part in nozzle installation cavity, and nozzle is installed cavity and is connected on valve body (10), and elastic washer is against in the annular encapsulation part of filter; The bottom that described nozzle installs cavity is provided with nozzle installing hole, is provided with nozzle in nozzle installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520223363.1U CN204682302U (en) | 2015-04-14 | 2015-04-14 | A kind of external cannula type anti-dripping valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520223363.1U CN204682302U (en) | 2015-04-14 | 2015-04-14 | A kind of external cannula type anti-dripping valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204682302U true CN204682302U (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520223363.1U Expired - Fee Related CN204682302U (en) | 2015-04-14 | 2015-04-14 | A kind of external cannula type anti-dripping valve |
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| Country | Link |
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| CN (1) | CN204682302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415066A (en) * | 2022-08-19 | 2022-12-02 | 拓攻（南京）机器人有限公司 | Drip-proof valve, sprinkling system and plant protection unmanned aerial vehicle |
-
2015
- 2015-04-14 CN CN201520223363.1U patent/CN204682302U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415066A (en) * | 2022-08-19 | 2022-12-02 | 拓攻（南京）机器人有限公司 | Drip-proof valve, sprinkling system and plant protection unmanned aerial vehicle |
| CN115415066B (en) * | 2022-08-19 | 2023-11-21 | 拓攻（南京）机器人有限公司 | Drip-proof valve, spraying system and plant protection unmanned aerial vehicle |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| 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: 20151007 |