CN105465434A - Fast intercepting device for high-pressure spraying heads - Google Patents
Fast intercepting device for high-pressure spraying heads Download PDFInfo
- Publication number
- CN105465434A CN105465434A CN201610019879.3A CN201610019879A CN105465434A CN 105465434 A CN105465434 A CN 105465434A CN 201610019879 A CN201610019879 A CN 201610019879A CN 105465434 A CN105465434 A CN 105465434A
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- China
- Prior art keywords
- hole
- stroke
- diameter
- intercepting
- cutoff
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
Abstract
A fast intercepting device for high-pressure spraying heads comprises an intercepting valve body, and the intercepting valve body comprises a connection part and a stroke part; a water feeding hole and an intercepting hole communicated with the water feeding hole are formed in the connection part, and the diameter of the water feeding hole is smaller than that of the intercepting hole; the connection part is provided with a water inlet hole communicated with the intercepting hole; a stroke hole communicated with the intercepting hole is formed in the stroke part, and the diameter of the stroke hole is greater than that of the intercepting hole; a valve rod is arranged in the intercepting valve body, one end of the valve rod is located in the intercepting hole, an installing screw hole is formed in the port of the end, and a valve core made of rubber is installed in the installing screw hole; the valve core comprises a cylindrical embedding part matched with the installing screw hole and a bulb head with the diameter greater than the inner diameter of the water feeding hole. According to the invention, liquid flow can be prevented from leaking in a running water mode as soon as possible when a switch on a water outlet pipeline closes the water outlet pipeline.
Description
Technical field
The present invention relates to a kind of rapid intercepting device for high-pressure nozzle.
Background technique
Often high-pressure nozzle is used in spraying system, high-pressure nozzle is mounted on after in the rising pipe of spraying system, the high pressure liquid stream of transport pump can be formed by high-pressure nozzle and vaporificly be sprayed to crop surface, when not needing to carry out spraying operation to crop, the switch in rising pipe system need be closed, because pipe-line system often has part flexible pipe to connect, under high-pressure fog state, flexible pipe can produce expansion, when closing effluent switch, pressure in pipeline declines rapidly, the pipeline of original expansion shrinks rapidly, if adopt common high-pressure nozzle, in hose contracts process, shower nozzle there will be with the liquid water clock of flowing water shape to crop or on the ground, cause the pollution of poisoning to crop and environment, and waste liquid.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of rapid intercepting device for high-pressure nozzle, and it can switch on rising pipe very first time of closing rising pipe stop rapidly liquid stream to be gone out from nozzle with flowing water shape water clock.
The technological scheme that the present invention solves the problems of the technologies described above employing is:
The present invention discloses a kind of rapid intercepting device for high-pressure nozzle, comprises the valve body that dams, it is characterized in that: described in the valve body that dams comprise joint, stroke portion; Be provided with in described joint one send water hole and with the cutoff hole sending water hole to connect, send water hole diameter to be less than cutoff hole diameter; Described joint is provided with a water inlet connected with cutoff hole; Be provided with a stroke hole connected with cutoff hole in described stroke portion, described stroke bore dia is greater than cutoff hole diameter; Be provided with a valve rod in the described valve body that dams, valve rod one end is positioned at cutoff hole, and this end port is provided with an installation screw, is provided with the spool that is quality of rubber materials in installation screw; Described spool comprises the cylindrical Embedded Division that matches with installation screw and diameter is greater than the bulb sending water hole internal diameter; The port sending water hole and cutoff hole to connect blocks by described bulb; Described stroke portion is bolted with a spring seat; Described valve rod is provided with the support ring matched with stroke hole; Described support ring side is provided with the seal ring that is positioned at stroke hole, and seal diameter is greater than stroke bore dia, and seal ring is quality of rubber materials; Be arranged with one outside described valve rod to dam spring; The described spring one end that dams is conflicted on support ring, and the other end is conflicted at spring seat inwall.
Described seal ring is provided with an annular water storage tank.
Described spring seat afterbody is provided with a bleeder port.
Described joint outer wall is provided with outside thread; O type circle is arranged with outside described joint.
The invention has the beneficial effects as follows:
Compared with prior art, after adopting the switch of the rapid intercepting device for high-pressure nozzle of structure of the present invention on rising pipe to close, pressure in pipeline declines rapidly, valve rod in rapid intercepting device is rapidly to and send direction, water hole to move under the effect of the spring that dams, because valve rod one end embedded in the ball valve core of quality of rubber materials, the port sending water hole and cutoff hole to connect blocks rapidly by this spool, high-pressure nozzle inside now can be made to form a vacuum space, the air pressure in high-pressure nozzle is greater than due to the barometric pressure outside high-pressure nozzle, the liquid stream being positioned at high-pressure nozzle can not be gone out from nozzle with flowing water shape water clock, thus avoid the poisoning of liquid to crop and the pollution to environment, and the waste of liquid stream can not be caused.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of the present invention for the rapid intercepting device of high-pressure nozzle;
Fig. 2 is the structural representation of the present invention for the rapid intercepting device of high-pressure nozzle;
Fig. 3 structural representation that to be the present invention assemble for rapid intercepting device and the high-pressure nozzle of high-pressure nozzle.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Refer to Fig. 1 to Fig. 3, the invention provides a kind of rapid intercepting device for high-pressure nozzle, comprise the valve body 1 that dams, described in the valve body 1 that dams comprise joint 2, stroke portion 3; Be provided with in described joint 2 one send water hole 4 and with the cutoff hole 5 sending water hole 4 to connect, send water hole 4 diameter to be less than cutoff hole 5 diameter; Described joint 2 is provided with a water inlet 6 connected with cutoff hole 5; Be provided with a stroke hole 7 connected with cutoff hole 5 in described stroke portion 3, described stroke hole 7 diameter is greater than cutoff hole 5 diameter; Be provided with a valve rod 8 in the described valve body 1 that dams, valve rod 8 one end is positioned at cutoff hole 5, and this end port is provided with an installation screw 9, is provided with the spool 10 that is quality of rubber materials in installation screw 9; Described spool 10 comprises the cylindrical Embedded Division 11 that matches with installation screw 9 and diameter is greater than the bulb 12 sending water hole 4 internal diameter; The port one 3 sending water hole 4 and cutoff hole 5 to connect blocks by described bulb 12; Described stroke portion 3 is bolted with a spring seat 14; Described valve rod 8 is provided with the support ring 15 matched with stroke hole; Described support ring 15 side is provided with the seal ring 16 that is positioned at stroke hole, and seal ring 16 diameter is greater than stroke hole 7 diameter, and seal ring 16 is quality of rubber materials; Be arranged with one outside described valve rod 8 to dam spring 17; Conflict on support ring 15 in described spring 17 one end of damming, the other end is conflicted at spring seat 14 inwall.
Described seal ring 16 is provided with an annular water storage tank 18.
Described spring seat 14 afterbody is provided with a bleeder port 19.
Described joint 2 outer wall is provided with outside thread 20; O type circle 21 is arranged with outside described joint 2.
Using method of the present invention is as follows:
Outside thread 20 first by damming on the joint of valve body is connected with the liquid entering hole 22 of high-pressure nozzle, and then be connected with the rising pipe of spraying system by the water inlet 6 on joint, when after the switch open on rising pipe, liquid stream in rising pipe enters in cutoff hole 5 along water inlet 6, because the port one 3 sending water hole 4 and cutoff hole 5 to connect blocks by the bulb 12 of spool, therefore when liquid stream constantly enters into after in cutoff hole, the liquid mineralization pressure that fails to be convened for lack of a quorum of savings extrudes seal ring 16, and seal ring 16 diameter is greater than stroke hole 7, when liquid stream extrudes seal ring 16, liquid stream can not penetrate into below seal ring 16, and seal ring 16 is provided with annular water storage tank 18, mainly put aside in annular water storage tank 18 to the liquid stream that seal ring 16 extrudes, and seal ring 16 outer wall can extrude to stroke hole 7 inwall by the liquid stream being positioned at annular water storage tank 18 simultaneously, make seal ring 16 outer wall can be close to stroke hole 7 inwall, ensure that the sealing between seal ring 16 and stroke hole 7 inwall, at seal ring 16 while being subjected to displacement, gas between support ring 15 and spring seat 14 is then extruded away by the bleeder port 19 of spring seat afterbody.
Along with liquid stream constantly extrudes seal ring 16, the spring 17 that dams between support ring 15 and spring seat 14 starts to shrink, and the bulb 12 of spool starts slowly to be subjected to displacement, no longer the port one 3 that water hole 4 and cutoff hole 5 connect is sent in blocking, now most of liquid stream enters into from this port one 3 and send in water hole 4, enter in high-pressure nozzle 23 by liquid entering hole 22 again, finally spray from the nozzle 24 of high-pressure nozzle, when high-pressure nozzle 23 needs to terminate spraying operation, switch on rising pipe cuts out, after closing the switch on rising pipe, liquid stream no longer pours in cutoff hole 5, seal ring 16 is also no longer subject to the brute force extruding of liquid stream, high-pressure nozzle 23 internal pressure also declines rapidly, the spring 17 that dams after compression starts under the effect of its own resilient, support ring 15 is extruded, support ring 15 is resetted, after support ring 15 resets, the bulb 12 of spool starts again to be blocked by the port one 3 sending water hole 4 and cutoff hole 5 to connect, after this port one 3 is blocked, owing to being also full of liquid stream in high-pressure nozzle 23, high-pressure nozzle 23 inside can form a vacuum space, air pressure now outside high-pressure nozzle 23 is greater than the air pressure in high-pressure nozzle 23, ambient pressure can extrude to high-pressure nozzle 23 inside, therefore the liquid stream being positioned at high-pressure nozzle 23 can not spray from nozzle 24 under the effect of fluid inertia or water clock is gone out, high-pressure nozzle 23 can be sprayed from nozzle 24 or water clock is gone out by switch on the rising pipe very first time restriction liquid stream of closing rising pipe, terminate spraying operation, the waste of liquid stream can not be caused.
Due to the small volume of the valve body 1 that dams, its inside send water hole 4, less and the hole depth in the aperture of cutoff hole 5, therefore water hole 4 is sent, the machining accuracy of cutoff hole 5 is difficult to control, if the metallic material that valve rod 8 is formed in one, the port one 3 sending water hole and cutoff hole to connect is blocked by valve rod 8 bar head, in machining accuracy situation very rambunctious, be difficult to the sealing ensureing valve rod 8 bar head and this place's port one 3, and under both Long Term Contacts, all can there is the situation of wearing and tearing in valve rod 8 bar head and this place's port one 3 edge, just there will be the situation of seepage then, sealing between the two cannot be protected, but the present invention is by arranging installation screw 9 in valve rod 8 one end, and the spool 10 of promising quality of rubber materials is installed in installation screw 9, and spool 10 comprises the cylindrical Embedded Division 11 that matches with installation screw 9 and diameter is greater than the bulb 12 sending water hole internal diameter, cylindrical Embedded Division 11 bottom is screwed in the process of installation screw 9, gradually the air in installation screw 9 is discharged by threaded line, air long compressive in hole is avoided to cause the extruding to spool 10, in addition because the cylindrical body Embedded Division 11 of spool 10 is screwed in installation screw by force, spool 10 is also not easily extruded in a high voltage state, guarantee the sealing reliability of spool.
Claims (4)
1., for a rapid intercepting device for high-pressure nozzle, comprise the valve body that dams, it is characterized in that: described in the valve body that dams comprise joint, stroke portion; Be provided with in described joint one send water hole and with the cutoff hole sending water hole to connect, send water hole diameter to be less than cutoff hole diameter; Described joint is provided with a water inlet connected with cutoff hole; Be provided with a stroke hole connected with cutoff hole in described stroke portion, described stroke bore dia is greater than cutoff hole diameter; Be provided with a valve rod in the described valve body that dams, valve rod one end is positioned at cutoff hole, and this end port is provided with an installation screw, is provided with the spool that is quality of rubber materials in installation screw; Described spool comprises the cylindrical Embedded Division that matches with installation screw and diameter is greater than the bulb sending water hole internal diameter; The port sending water hole and cutoff hole to connect blocks by described bulb; Described stroke portion is bolted with a spring seat; Described valve rod is provided with the support ring matched with stroke hole; Described support ring side is provided with the seal ring that is positioned at stroke hole, and seal diameter is greater than stroke bore dia, and seal ring is quality of rubber materials; Be arranged with one outside described valve rod to dam spring; The described spring one end that dams is conflicted on support ring, and the other end is conflicted at spring seat inwall.
2. a kind of rapid intercepting device for high-pressure nozzle according to claim 1, is characterized in that: described seal ring is provided with an annular water storage tank.
3. a kind of rapid intercepting device for high-pressure nozzle according to claim 1, is characterized in that: described spring seat afterbody is provided with a bleeder port.
4. a kind of rapid intercepting device for high-pressure nozzle according to claim 1, is characterized in that: described joint outer wall is provided with outside thread; O type circle is arranged with outside described joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019879.3A CN105465434B (en) | 2016-01-13 | 2016-01-13 | A kind of rapid intercepting device for high-pressure nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019879.3A CN105465434B (en) | 2016-01-13 | 2016-01-13 | A kind of rapid intercepting device for high-pressure nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105465434A true CN105465434A (en) | 2016-04-06 |
| CN105465434B CN105465434B (en) | 2018-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610019879.3A Active CN105465434B (en) | 2016-01-13 | 2016-01-13 | A kind of rapid intercepting device for high-pressure nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105465434B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488534A (en) * | 2018-05-22 | 2018-09-04 | 叶聪梅 | A kind of pipeline quick flow-breaking device |
| CN108626510A (en) * | 2018-05-22 | 2018-10-09 | 叶聪梅 | A kind of quick cutting device when pipeline goes wrong |
| CN111693205A (en) * | 2020-07-15 | 2020-09-22 | 南京沃天科技有限公司 | Pressure sensor convenient to maintain and replace |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2253791Y (en) * | 1995-12-04 | 1997-05-07 | 农业部南京农业机械化研究所 | Pressure-control valve for plant-protection machinery |
| JPH1115535A (en) * | 1997-06-25 | 1999-01-22 | Seibu Maruyama Kk | Pressure regulator |
| CN201401539Y (en) * | 2009-05-12 | 2010-02-10 | 物理农林机械科技(苏州)有限公司 | Valve rod component used in safety relief valve bank |
| CN203571139U (en) * | 2013-11-07 | 2014-04-30 | 中国农业机械化科学研究院 | Pressure-limiting safety valve applied to agricultural spraying machine |
| CN204828829U (en) * | 2015-08-17 | 2015-12-02 | 山东卫士植保机械有限公司 | Anti -drip valve mechanism |
| CN205298705U (en) * | 2016-01-13 | 2016-06-08 | 台州信溢农业机械有限公司 | A quick cut -off equipment for high pressure nozzle |
-
2016
- 2016-01-13 CN CN201610019879.3A patent/CN105465434B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2253791Y (en) * | 1995-12-04 | 1997-05-07 | 农业部南京农业机械化研究所 | Pressure-control valve for plant-protection machinery |
| JPH1115535A (en) * | 1997-06-25 | 1999-01-22 | Seibu Maruyama Kk | Pressure regulator |
| CN201401539Y (en) * | 2009-05-12 | 2010-02-10 | 物理农林机械科技(苏州)有限公司 | Valve rod component used in safety relief valve bank |
| CN203571139U (en) * | 2013-11-07 | 2014-04-30 | 中国农业机械化科学研究院 | Pressure-limiting safety valve applied to agricultural spraying machine |
| CN204828829U (en) * | 2015-08-17 | 2015-12-02 | 山东卫士植保机械有限公司 | Anti -drip valve mechanism |
| CN205298705U (en) * | 2016-01-13 | 2016-06-08 | 台州信溢农业机械有限公司 | A quick cut -off equipment for high pressure nozzle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488534A (en) * | 2018-05-22 | 2018-09-04 | 叶聪梅 | A kind of pipeline quick flow-breaking device |
| CN108626510A (en) * | 2018-05-22 | 2018-10-09 | 叶聪梅 | A kind of quick cutting device when pipeline goes wrong |
| CN111693205A (en) * | 2020-07-15 | 2020-09-22 | 南京沃天科技有限公司 | Pressure sensor convenient to maintain and replace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105465434B (en) | 2018-03-09 |
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