WO2019061829A1 - 阀体结构及压力喷头装置 - Google Patents

阀体结构及压力喷头装置 Download PDF

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Publication number
WO2019061829A1
WO2019061829A1 PCT/CN2017/115028 CN2017115028W WO2019061829A1 WO 2019061829 A1 WO2019061829 A1 WO 2019061829A1 CN 2017115028 W CN2017115028 W CN 2017115028W WO 2019061829 A1 WO2019061829 A1 WO 2019061829A1
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WIPO (PCT)
Prior art keywords
valve
inlet pipe
liquid inlet
liquid
valve body
Prior art date
Application number
PCT/CN2017/115028
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English (en)
French (fr)
Inventor
周乐
吴晓龙
Original Assignee
深圳市大疆创新科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to CN201780064551.6A priority Critical patent/CN109863335B/zh
Priority to CN202010831256.2A priority patent/CN111921726B/zh
Publication of WO2019061829A1 publication Critical patent/WO2019061829A1/zh

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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
    • B05B1/3006—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 the controlling element being actuated by the pressure of the fluid to be sprayed
    • 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
    • B05B1/3026—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 the controlling element being a gate valve, a sliding valve or a cock
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves

Definitions

  • the invention relates to the technical field of plant protection machinery parts, in particular to a valve body structure and a pressure nozzle device.
  • the spraying system is used for spraying liquids such as pesticides, fertilizers, and water in the fields of agricultural production, plant protection, and the like.
  • a pressure spray device mounted to the spray system is used to spray liquid onto the surface of the crop.
  • the structure of the internal flow passage of the valve of the existing pressure nozzle device is relatively complicated, which may cause a large pressure drop loss of the liquid flowing in the internal flow passage, which is not conducive to energy saving.
  • the present invention aims to at least solve one of the technical problems existing in the related art. To this end, the present invention needs to provide a valve body structure and a pressure head device.
  • the valve body structure of the embodiment of the present invention is used for a pressure nozzle device, the valve body structure includes a valve body and a valve core, and the valve body is provided with an inlet pipe, an outlet pipe, and the inlet pipe and the outlet a valve port between the liquid pipes, the valve port communicates with the liquid inlet pipe and the liquid outlet pipe, and is configured to cooperate with the valve core to control conduction between the liquid inlet pipe and the liquid outlet pipe And the partition, the center line of the liquid inlet pipe and the center line of the liquid discharge pipe are substantially coplanar.
  • the center line of the liquid inlet pipe and the center line of the liquid discharge pipe are substantially coplanar, it is not necessary to provide a pipe perpendicular to the center line of the liquid inlet pipe and the center line of the liquid discharge pipe. In this way, the structure is simple and easy to form. Secondly, the vertical curve in the valve body structure can be reduced, and the pressure drop loss of the liquid flowing in the pipe can be reduced.
  • valve body is integrally formed.
  • the valve body includes a connecting surface and a valve core receiving groove is formed on the connecting surface, and the valve port cooperates with the valve core through the valve core receiving groove to control the Opening and blocking of the liquid inlet pipe and the liquid outlet pipe
  • the liquid inlet pipe includes a first liquid inlet pipe in a straight line shape and a second inlet which is substantially perpendicularly connected to the first liquid inlet pipe and is linear a liquid inlet pipe
  • the second liquid inlet pipe runs through the valve core accommodating groove
  • the valve port is formed between the valve core accommodating groove and the second liquid inlet pipe
  • the liquid discharge pipe includes a first outlet conduit that extends through the connecting surface to form a liquid outlet and is linear; and a second outlet conduit that is substantially perpendicularly connected to the first outlet conduit and is linear.
  • the centerline of the second liquid inlet conduit is substantially parallel to the centerline of the first liquid outlet conduit.
  • a centerline of the first liquid inlet conduit coincides with a centerline of the second liquid outlet conduit.
  • the cross-sectional area of the liquid inlet conduit is greater than the cross-sectional area of the liquid outlet conduit.
  • the valve body includes a connecting surface and a valve core receiving groove is formed on the connecting surface
  • the liquid inlet pipe includes a first liquid inlet pipe in a straight line shape and the first inlet a liquid inlet pipe is substantially vertically connected and is a linear second liquid inlet pipe; the second liquid inlet pipe runs through the valve core receiving groove, the valve port is formed in the valve core receiving groove and the second
  • the liquid outlet conduit includes a first liquid outlet conduit that extends through the connecting surface to form a liquid outlet and is linearly connected to the first outlet conduit and a second outlet conduit in a straight line, the centerline of the second inlet conduit being substantially parallel to the centerline of the first outlet conduit.
  • the valve body structure includes a valve structure mounted to the valve body, the valve core being located between the valve body and the valve structure, the valve structure including a valve core housing and elasticity a reset member, the spool housing is fixedly disposed on the valve body, the reset member is disposed between the spool housing and the spool, wherein the reset member is configured to pass the The elastic force of the reset member forces the spool to seal the valve port and is deformable under the hydraulic pressure of the liquid inlet pipe to open the valve port to allow the liquid inlet pipe to pass through the valve port and the liquid outlet The pipe is turned on.
  • the spool housing is formed with a guide groove that is opposite to the spool receiving groove, and the spool includes a guide rod and a sliding portion disposed in the guide groove a connecting elastic seal at one end of the guide rod, wherein the reset member is sleeved on the guide rod and used to force the guide rod to push the elastic seal to seal the valve port and the liquid discharge Entrance.
  • the valve body includes a cylindrical connecting end, the end surface of the connecting end is provided with a valve port, the valve core shell is formed with a first thread structure, and the connecting end is formed with a second thread structure.
  • the first threaded structure cooperates with the second threaded structure such that the spool housing is fixedly mounted on the connecting end.
  • a pressure head device includes the valve body structure according to any of the above embodiments and a nozzle provided on the valve body structure, the nozzle including a discharge passage communicating with the outlet conduit.
  • the center line of the liquid inlet pipe and the center line of the liquid discharge pipe are substantially coplanar, it is not necessary to provide a pipe perpendicular to the center line of the liquid inlet pipe and the center line of the liquid discharge pipe. In this way, the structure is simple and easy to form. Secondly, the vertical curve in the valve body structure can be reduced, and the pressure drop loss of the liquid flowing in the pipe can be reduced.
  • FIG. 1 is a schematic perspective view of a pressure head device according to an embodiment of the present invention.
  • FIG. 2 is a schematic plan view of a pressure nozzle device according to an embodiment of the present invention.
  • FIG. 3 is another schematic plan view of a pressure nozzle device according to an embodiment of the present invention.
  • FIG. 4 is another schematic plan view of a pressure nozzle device according to an embodiment of the present invention.
  • Figure 5 is a further plan view of the pressure nozzle device of the embodiment of the present invention.
  • Fig. 6 is a schematic cross-sectional view showing a pressure head device according to an embodiment of the present invention.
  • valve body structure 10 The valve body structure 10, the connecting surface 11, the valve core receiving groove 111, the valve body 12, the liquid inlet pipe 121, the first liquid inlet pipe 1211, the second liquid inlet pipe 1212, the liquid outlet pipe 122, the liquid outlet 1220, and the a liquid outlet pipe 1221, a second liquid outlet pipe 1222, a valve port 123, a connecting end 124, a second thread structure 1241, a valve core 14, a guide rod 141, an elastic seal 142, a valve structure 16, a valve core shell 161, a guide a slot 1611, a first thread structure 1612, a reset member 162;
  • the nozzle 20 the discharge passage 21, and the outlet 22.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include one or more of the described features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or connected integrally; can be directly connected, or indirectly connected through an intermediate medium, which can be the internal communication of two elements or the interaction of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may include direct contact of the first and second features, and may also include first and The two features are not in direct contact but are contacted by additional features between them.
  • the first feature "above”, “above” and “above” the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.
  • the valve body structure 10 of the embodiment of the present invention may be, but is not limited to, the pressure head device 100 used in the embodiment of the present invention.
  • the pressure head device 100 of an embodiment of the present invention may be, but is not limited to, used in a spray system.
  • the spraying system can be installed on an aircraft (for example, a multi-wing unmanned aerial vehicle) for spraying pesticides, fertilizers, water and the like in the fields of agricultural production, plant protection and the like.
  • the embodiment of the present invention will be described by taking the valve body structure 10 for the pressure head device 100 as an example.
  • the pressure head device 100 includes a valve body structure 10 and a nozzle 20.
  • the valve body structure 10 is disposed on the nozzle 20.
  • the valve body structure 10 includes a valve body 12, a spool 14, and a valve structure 16.
  • the valve structure 16 is mounted to the valve body 12.
  • the spool 14 is located between the valve body 12 and the valve structure 16.
  • the valve body 12 is provided with an inlet pipe 121, an outlet pipe 122, and a valve port 123 between the inlet pipe 121 and the outlet pipe 122.
  • the valve port 123 communicates with the liquid inlet pipe 121 and the liquid discharge pipe 122, and is used to cooperate with the spool 14 to control the conduction and the disconnection of the liquid inlet pipe 121 and the outlet pipe 122.
  • the centerline of the liquid inlet conduit 121 and the centerline of the outlet conduit 122 are substantially coplanar.
  • the center line of the liquid inlet pipe 121 and the center line of the liquid discharge pipe 122 are substantially coplanar, it is not necessary to provide a pipe perpendicular to the center line of the liquid inlet pipe 121 and the center line of the liquid discharge pipe 122.
  • the structure is simple and easy to form. Secondly, the vertical curve in the valve body structure 10 can be reduced, and the pressure drop loss of the liquid flowing in the pipe can be reduced.
  • valve port 123 cooperates with the valve core 14 to control the conduction and the disconnection of the liquid inlet pipe 121 and the liquid outlet pipe 122 in different manners.
  • conduction and isolation of the liquid inlet conduit 121 and the outlet conduit 122 may be achieved by positional movement or deformation of the spool 14.
  • valve structure 16 can be arranged according to the specific situation, that is, the valve structure 16 can also be omitted.
  • the valve structure 16 is detachably coupled to the valve body 12.
  • the arrangement of the valve structure 16 can improve the stability of the cooperation of the spool 14 with the valve port 123 and facilitate the disassembly and assembly of the spool 14.
  • Embodiments of the present invention are described with the valve body structure 10 including the valve structure 16 as an example.
  • the structure of the valve structure 16 in this embodiment will be developed in the following.
  • the cross-sectional area of the liquid inlet pipe 121 is larger than the horizontal direction of the liquid outlet pipe 122 on the basis that the center line of the liquid inlet pipe 121 and the center line of the liquid discharge pipe 122 are substantially coplanar. Cross-sectional area.
  • the pipe body structure 10 can quickly generate a large negative pressure, so that the liquid remaining in the pipe is not It will continue to drip out and achieve the function of closing the pipe of the valve body structure 10 in time.
  • valve body 12 can be formed in combination by a plurality of components.
  • the valve body 12 in order to reduce the manufacturing cost and to make the valve body 12 easy to mold, the valve body 12 is formed by integral molding.
  • valve port 123 and the valve core 14 can be set according to the actual application.
  • the valve body 12 in order to enable the valve core 14 to better control the conduction and the disconnection of the liquid inlet pipe 121 and the liquid outlet pipe 122, the valve body 12 includes the joint surface 11 and is formed at the joint surface 11. There is a spool receiving groove 111.
  • the valve port 123 cooperates with the spool 14 through the spool receiving groove 111 to control the conduction and the disconnection of the liquid inlet pipe 121 and the outlet pipe 122.
  • the structures of the liquid inlet pipe 121 and the liquid outlet pipe 122 can be set according to actual application conditions.
  • the liquid inlet pipe 121 includes a first liquid inlet pipe 1211 which is linear and a second liquid inlet pipe 1212 which is substantially perpendicularly connected to the first liquid inlet pipe 1211 and which is linear.
  • the second liquid inlet pipe 1212 penetrates the valve core accommodating groove 111.
  • the valve port 123 is formed between the spool receiving groove 111 and the second liquid inlet pipe 1212.
  • the liquid outlet pipe 122 includes a first liquid outlet pipe 1221 which is adjacent to the valve port 123 through the joint surface 11 to form the liquid outlet 1220 and which is linear, and a second liquid discharge line which is substantially perpendicularly connected to the first liquid discharge pipe 1221.
  • the center line a2 of the second liquid inlet pipe 1212 is substantially parallel to the center line b1 of the first liquid discharge pipe 1221.
  • the valve core 14 cooperates with the valve port 123 and can control the conduction and separation of the second liquid inlet conduit 1212 and the first liquid outlet conduit 1221, and can enable the second liquid inlet conduit 1212 to be electrically connected to the first liquid outlet conduit 1221.
  • the U-shaped tube structure is formed to facilitate the smoother flow of the liquid, and the pressure drop loss of the liquid flowing in the pipeline can be further reduced.
  • the U-tube structure since the U-tube structure has a liquid seal effect on the liquid located in the U-tube structure, the generation of air bubbles in the second liquid inlet pipe 1212 and the first liquid outlet pipe 1221 can be reduced.
  • the cross section of the liquid inlet pipe 121 may be circular or elliptical, and the cross section of the liquid outlet pipe 122 may be circular or elliptical.
  • first liquid inlet conduit 1211 and the second liquid outlet conduit 1222 may be defined to further simplify the structure of the liquid inlet conduit 121 and the outlet conduit 122.
  • the center line a1 of the first liquid inlet pipe 1211 and the center line b2 of the second liquid discharge pipe 1222 overlap.
  • the shape of the first liquid inlet pipe 1211 and the second liquid outlet pipe 1222 are relatively regular, so that it is easy to form, and the arrangement of the center lines of the above two can further reduce the pressure drop loss of the liquid flowing in the pipe.
  • the valve structure 16 includes a spool housing 161 and an elastic return member 162.
  • the spool housing 161 is fixedly disposed on the valve body 12.
  • the reset member 162 is disposed between the spool housing 161 and the spool 14.
  • the reset member 162 is configured to force the valve core 14 to seal the valve port 123 by the elastic force of the reset member 162, and can be deformed under the hydraulic pressure of the liquid inlet pipe 121 to open the valve port 123 so that the liquid inlet pipe 121 passes through the valve port 123 It is electrically connected to the outlet pipe 122.
  • the structure of the valve structure 16 is relatively simple, and the spool 14 can stably seal the valve port 123.
  • valve body 14 can be sealed by the valve body 12 by further optimizing the structure of the valve body 12 or the structure of the valve structure 16 or the structure of the spool 14 or the arrangement of the spool 14 between the valve body 12 and the valve structure 16. Sealing.
  • the valve body casing 161 is formed with a guide groove 1611. The guide groove 1611 is opposed to the spool receiving groove 111.
  • the spool 14 includes a guide rod 141 slidably disposed within the guide groove 1611 and an elastic seal 142 coupled to one end of the guide rod 141.
  • the reset member 162 is sleeved on the guide rod 141 and is used to force the guide rod 141 to push the elastic seal member 142 to seal the valve port 123 and the liquid outlet 1220.
  • the elastic seal 142 can generate elastic deformation under the hydraulic pressure of the second liquid inlet pipe 1212 to reversely compress the reset member 162 and push the guide rod 141 to slide away from the valve port 123 along the guide groove 1611, and the liquid stops entering.
  • the compressed reset member 162 Upon entering the liquid conduit 1212, the compressed reset member 162 is elongated and can force the guide rod 141 to slide toward the valve port 123 to urge the elastomeric seal 142 to seal the valve port 123 and the fluid outlet 1220.
  • connection of the elastic seal 142 and the guide rod 141 can be achieved in various ways.
  • the elastomeric seal 142 is secured to the guide rod 141 by a fixed connection and between the guide rod 141 and the valve body 12 such that the guide rod 141 can push the elastomeric seal 142 to seal the valve port 123 and the fluid
  • the inlet 1220 or by abutting against the guide rod 141 and between the guide rod 141 and the valve body 12, enables the guide rod 141 to push the elastomeric seal 142 to seal the valve port 123 and the outlet inlet 1220.
  • the reset member 162 can be, for example, a spring.
  • the elastomeric seal 142 can be made of a different material, such as a rubber material.
  • valve body 12 when the valve structure 16 and the valve body 12 are detachably connected, the valve body 12 may be provided with a columnar connection end 124, and the end surface of the connection end 124 is provided with a valve port 123, and the valve body casing 161 is formed with a first A threaded structure 1612 is formed such that the connecting end 124 is formed with the second threaded structure 1241 and the first threaded structure 1612 is mated with the second threaded structure 1241 such that the spool housing 161 is fixedly mounted on the connecting end 124.
  • the nozzle 20 includes a discharge passage 21 that communicates with the outlet conduit 122.
  • the discharge passage 21 may be tapered from the outlet conduit 122 toward the outlet 22 of the nozzle 20.
  • the pressure head device 100 pumps the liquid into the liquid inlet pipe 121 by a pump (not shown).

Abstract

一种阀体结构(10)及压力喷头装置(100)，阀体结构(10)用于压力喷头装置(100)，所述阀体结构(10)包括阀体(12)和阀芯(14)，所述阀体(12)设有入液管道(121)、出液管道(122)和位于所述入液管道(121)和所述出液管道(122)之间的阀门口(123)，所述阀门口(123)连通所述入液管道(121)以及所述出液管道(122)，并用于与所述阀芯(14)配合，以控制所述入液管道(121)和所述出液管道(122)的导通和隔断，所述入液管道(121)的中心线和所述出液管道(122)的中心线基本共平面。由于入液管道(121)的中心线和出液管道(122)的中心线基本共平面，无需设置与入液管道(121)的中心线和出液管道(122)的中心线垂直的管道。如此，一来结构简单，容易成型，二来，可以减少阀体结构(10)内的垂直弯道，减小液体在管道内流动的压降损失。

Description

阀体结构及压力喷头装置 技术领域
本发明涉及植保机械配件技术领域，尤其涉及一种阀体结构及压力喷头装置。
背景技术
在相关技术中，喷洒系统用于农业生产、植物保护等领域的农药、化肥、水等液体的喷洒。安装于喷洒系统的压力喷头装置用于将液体喷洒至作物表面。现有的压力喷头装置的阀门的内部流道的结构较为复杂，可能导致液体在内部流道内流动的压降损失较大，不利于节能。
发明内容
本发明旨在至少解决相关技术中存在的技术问题之一。为此，本发明需要提供一种阀体结构及压力喷头装置。
本发明实施方式的阀体结构用于压力喷头装置，所述阀体结构包括阀体和阀芯，所述阀体设有入液管道、出液管道和位于所述入液管道和所述出液管道之间的阀门口，所述阀门口连通所述入液管道以及所述出液管道，并用于与所述阀芯配合，以控制所述入液管道和所述出液管道的导通和隔断，所述入液管道的中心线和所述出液管道的中心线基本共平面。
上述阀体结构中，由于入液管道的中心线和出液管道的中心线基本共平面，无需设置与入液管道的中心线和出液管道的中心线垂直的管道。如此，一来结构简单，容易成型，二来，可以减少阀体结构内的垂直弯道，减小液体在管道内流动的压降损失。
在某些实施方式中，所述阀体一体成型。
在某些实施方式中，所述阀体包括连接面并在所述连接面形成有阀芯容置槽，所述阀门口通过所述阀芯容置槽与所述阀芯配合以控制所述入液管道和所述出液管道的导通和隔断，所述入液管道包括呈直线型的第一入液管道和与所述第一入液管道基本垂直连接且呈直线型的第二入液管道；所述第二入液管道贯穿所述阀 芯容置槽，所述阀门口形成于所述阀芯容置槽和所述第二入液管道之间，所述出液管道包括靠近所述阀门口贯穿所述连接面以形成出液入口且呈直线型的第一出液管道和与所述第一出液管道基本垂直连接且呈直线型的第二出液管道，所述第二入液管道的中心线与所述第一出液管道的中心线基本平行。
在某些实施方式中，所述第一入液管道的中心线与所述第二出液管道的中心线重合。
在某些实施方式中，所述入液管道的横截面积大于所述出液管道的横截面积。
在某些实施方式中，所述阀体包括连接面并在所述连接面形成有阀芯容置槽，所述入液管道包括呈直线型的第一入液管道和与所述第一入液管道基本垂直连接且呈直线型的第二入液管道；所述第二入液管道贯穿所述阀芯容置槽，所述阀门口形成于所述阀芯容置槽和所述第二入液管道之间，所述出液管道包括靠近所述阀门口贯穿所述连接面以形成出液入口且呈直线型的第一出液管道和与所述第一出液管道基本垂直连接且呈直线型的第二出液管道，所述第二入液管道的中心线与所述第一出液管道的中心线基本平行。
在某些实施方式中，所述阀体结构包括安装于所述阀体的阀门结构，所述阀芯位于所述阀体与所述阀门结构之间，所述阀门结构包括阀芯壳和弹性的复位件，所述阀芯壳固定设置在所述阀体上，所述复位件设置在所述阀芯壳和所述阀芯之间，其中，所述复位件被配置成能够通过所述复位件的弹力迫使所述阀芯密封所述阀门口，并能够在所述入液管道的液压下形变以打开所述阀门口以使得所述入液管道通过所述阀门口与所述出液管道导通。
在某些实施方式中，所述阀芯壳形成有导槽，所述导槽与所述阀芯容置槽相对，所述阀芯包括滑动设置在所述导槽内的导杆和与所述导杆的一端的连接的弹性密封件，其中，所述复位件套设在所述导杆上，并用于迫使所述导杆推动所述弹性密封件密封所述阀门口和所述出液入口。
在某些实施方式中，所述阀体包括柱状连接端，所述连接端的端面设有阀门口，所述阀芯壳形成有第一螺纹结构，所述连接端形成有第二螺纹结构，所述第一螺纹结构与所述第二螺纹结构配合以使得所述阀芯壳固定安装在所述连接端上。
本发明实施方式的压力喷头装置包括上述任一实施方式所述的阀体结构和设置在所述阀体结构上的喷嘴，所述喷嘴包括与所述出液管道连通的喷出通道。
上述压力喷头装置中，由于入液管道的中心线和出液管道的中心线基本共平面，无需设置与入液管道的中心线和出液管道的中心线垂直的管道。如此，一来结构简单，容易成型，二来，可以减少阀体结构内的垂直弯道，减小液体在管道内流动的压降损失。
本发明实施例的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是本发明实施方式的的压力喷头装置的立体示意图；
图2是本发明实施方式的的压力喷头装置的平面示意图；
图3是本发明实施方式的的压力喷头装置的另一平面示意图；
图4是本发明实施方式的的压力喷头装置的又一平面示意图；
图5是本发明实施方式的的压力喷头装置的再一平面示意图；
图6是本发明实施方式的的压力喷头装置的剖面示意图。
主要元件符号说明：
压力喷头装置100；
阀体结构10、连接面11、阀芯容置槽111、阀体12、入液管道121、第一入液管道1211、第二入液管道1212、出液管道122、出液入口1220、第一出液管道1221、第二出液管道1222、阀门口123、连接端124、第二螺纹结构1241、阀芯14、导杆141、弹性密封件142、阀门结构16、阀芯壳161、导槽1611、第一螺纹结构1612、复位件162；
喷嘴20、喷出通道21、出口22。
具体实施例
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对 本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明的描述中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施例或例子用来实现本发明的不同结构。为了简化本发明的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施例和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
请参阅图1-图6，本发明实施方式的阀体结构10可以但不限于用于本发明实施方式的压力喷头装置100。本发明实施方式的压力喷头装置100可以但不限于用 于喷洒系统。其中，喷洒系统可安装于飞行器(例如多翼无人飞行器)上以用于农业生产、植物保护等领域的农药、化肥、水等液体的喷洒。本发明实施方式以阀体结构10用于压力喷头装置100为例进行说明。
在本实施方式中，压力喷头装置100包括阀体结构10和喷嘴20。阀体结构10设置在喷嘴20上。
请结合图6，阀体结构10包括阀体12、阀芯14和阀门结构16。阀门结构16安装于阀体12。阀芯14位于阀体12与阀门结构16之间。阀体12设有入液管道121、出液管道122和位于入液管道121和出液管道122之间的阀门口123。阀门口123连通入液管道121以及出液管道122，并用于与阀芯14配合，以控制入液管道121和出液管道122的导通和隔断。入液管道121的中心线和出液管道122的中心线基本共平面。由于入液管道121的中心线和出液管道122的中心线基本共平面，无需设置与入液管道121的中心线和出液管道122的中心线垂直的管道。如此，一来结构简单，容易成型，二来，可以减少阀体结构10内的垂直弯道，减小液体在管道内流动的压降损失。
需要说明的是，阀门口123与阀芯14配合以控制入液管道121和出液管道122的导通和隔断可通过不同的方式实现。例如，在一些例子中，可通过阀芯14的位置移动或形变而实现入液管道121和出液管道122的导通和隔断。
其次，阀门结构16可根据具体情况进行设置，即也可不设置阀门结构16。在本实施方式中，阀门结构16与阀体12为可拆卸连接。阀门结构16的设置能够提高阀芯14与阀门口123配合的稳定性并便于阀芯14的拆装。本发明实施方式以阀体结构10包括阀门结构16为例进行说明。本实施方式中的阀门结构16的结构将在后续中展开。
另外，现有的压力喷头装置的内部流道内容易形成滞留空气泡，导致压力喷头装置在启动关闭时由于流道内产生的负压作用较小而存在滴漏，关闭缓慢的问题，而滴漏和关闭缓慢会造成烧苗和其他对农作物产生损害的问题。针对上述技术问题，在本实施方式中，在入液管道121的中心线和出液管道122的中心线基本共平面的基础上，使得入液管道121的横截面积大于出液管道122的横截面积。这样液体由入液管道121进入出液管道122后，其流速将增大，从而可快速排出管道内滞留的空气泡。这样在通过阀门口123与阀芯14配合以隔断入液管道121和出液管道122时，阀体结构10的管道内能够较迅速产生较大的负压作用，从而 使得管道内残留的液体不会继续滴出，达到了及时关闭阀体结构10的管道的作用。
进一步地，阀体12的形成方式可根据实际应用情况进行设置。阀体12可以通过多个零部件以组合的方式形成。在本实施方式中，为了降低制造成本，并使得阀体12容易成型，通过一体成型的方式形成阀体12。
进一步地，阀门口123与阀芯14的配合方式可根据实际应用情况进行设置。请结合图6，在本实施方式中，为了使得阀芯14能够更好地控制入液管道121和出液管道122的导通和隔断，使得阀体12包括连接面11并在连接面11形成有阀芯容置槽111。阀门口123通过阀芯容置槽111与阀芯14配合以控制入液管道121和出液管道122的导通和隔断。
进一步地，入液管道121和出液管道122的结构可根据实际应用情况进行设置。请结合图6，在本实施方式中，入液管道121包括呈直线型的第一入液管道1211和与第一入液管道1211基本垂直连接且呈直线型的第二入液管道1212。第二入液管道1212贯穿阀芯容置槽111。阀门口123形成于阀芯容置槽111和第二入液管道1212之间。出液管道122包括靠近阀门口123贯穿连接面11以形成出液入口1220且呈直线型的第一出液管道1221和与第一出液管道1221基本垂直连接且呈直线型的第二出液管道1222。第二入液管道1212的中心线a2与第一出液管道1221的中心线b1基本平行。如此，阀芯14与阀门口123配合并能够控制第二入液管道1212与第一出液管道1221的导通和隔断，并能够使得第二入液管道1212与第一出液管道1221导通时形成连通的U型管结构，从而利于液体更顺畅地流动，并可进一步减小液体在管道内流动的压降损失。另外，由于U型管结构对位于U型管结构内的液体具有液封的作用，从而可减少第二入液管道1212与第一出液管道1221内空气泡的产生。
需要说明的是，为了进一步降低液体在管道中流动的阻力，可使得入液管道121的横截面呈圆形或椭圆形，并可使得出液管道122的横截面呈圆形或椭圆形。
进一步地，还可对第一入液管道1211和第二出液管道1222的设置方式进行限定，以进一步简化入液管道121和出液管道122的结构。在本实施方式中，第一入液管道1211的中心线a1与第二出液管道1222的中心线b2重合。如此，第一入液管道1211和第二出液管道1222的形状较为规整，这样容易成型，并且上述两者中心线重合的设置方式还可进一步减小液体在管道内流动的压降损失。
进一步地，请结合图6，在本实施方式中，阀门结构16包括阀芯壳161和弹 性的复位件162。阀芯壳161固定设置在阀体12上。复位件162设置在阀芯壳161和阀芯14之间。其中，复位件162被配置成能够通过复位件162的弹力迫使阀芯14密封阀门口123，并能够在入液管道121的液压下形变以打开阀门口123以使得入液管道121通过阀门口123与出液管道122导通。如此，阀门结构16的结构较为简单，并且阀芯14能够稳定密封阀门口123。
更进一步地，考虑到阀芯14密封阀门口123的密封性能是否优良对阀体结构10的实际使用具有较大影响，例如阀芯14密封阀门口123的性能较佳时，能够有效防止滴漏现象。所以，可通过进一步优化阀体12的结构或阀门结构16的结构或阀芯14的结构或阀芯14在阀体12与阀门结构16之间的设置方式以提高阀芯14密封阀门口123的密封性。在本实施方式中，阀芯壳161形成有导槽1611。导槽1611与阀芯容置槽111相对。阀芯14包括滑动设置在导槽1611内的导杆141和与导杆141的一端的连接的弹性密封件142。其中，复位件162套设在导杆141上，并用于迫使导杆141推动弹性密封件142密封阀门口123和出液入口1220。
也就是说，在第二入液管道1212的液压下弹性密封件142能够产生弹性形变以反作用压缩复位件162并推动导杆141沿导槽1611向远离阀门口123方向滑动，在液体停止进入第二入液管道1212时，受压缩的复位件162伸长并能够迫使导杆141向靠近阀门口123方向滑动以推动弹性密封件142密封阀门口123和出液入口1220。
需要说明的是，弹性密封件142与导杆141的连接可通过多种方式实现。例如，在一些例子中，弹性密封件142通过固定的连接方式固定在导杆141并位于导杆141与阀体12之间以使得导杆141能够推动弹性密封件142密封阀门口123和出液入口1220，或者通过抵持的方式抵持于导杆141并位于导杆141与阀体12之间以使得导杆141能够推动弹性密封件142密封阀门口123和出液入口1220。另外，复位件162例如可为弹簧。弹性密封件142可采用不同材料制成，例如可采用橡胶材料制成。
进一步地，在阀门结构16与阀体12为可拆卸连接时，可使得阀体12包括柱状连接端124，并使得连接端124的端面设有阀门口123，并使得阀芯壳161形成有第一螺纹结构1612，并使得连接端124形成有第二螺纹结构1241，并使得第一螺纹结构1612与第二螺纹结构1241配合以使得阀芯壳161固定安装在连接端124上。
进一步地，在本实施方式的压力喷头装置100中，喷嘴20包括与出液管道122连通的喷出通道21。
可以理解，为了提高由喷嘴20喷出的液体的覆盖范围，可使得喷出通道21由出液管道122向喷嘴20的出口22方向渐扩变化。
进一步地，在本实施方式的压力喷头装置100中，压力喷头装置100通过泵(图未示出)将液体泵入入液管道121。
在本说明书的描述中，参考术语“一个实施例”、“某些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合所述实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (18)

  1. 一种阀体结构，用于压力喷头装置，其特征在于，所述阀体结构包括阀体和阀芯，所述阀体设有入液管道、出液管道和位于所述入液管道和所述出液管道之间的阀门口，所述阀门口连通所述入液管道以及所述出液管道，并用于与所述阀芯配合，以控制所述入液管道和所述出液管道的导通和隔断，所述入液管道的中心线和所述出液管道的中心线基本共平面。
  2. 如权利要求1所述的阀体结构，其特征在于，所述阀体一体成型。
  3. 如权利要求1所述的阀体结构，其特征在于，所述阀体包括连接面并在所述连接面形成有阀芯容置槽，所述阀门口通过所述阀芯容置槽与所述阀芯配合以控制所述入液管道和所述出液管道的导通和隔断；
    所述入液管道包括呈直线型的第一入液管道和与所述第一入液管道基本垂直连接且呈直线型的第二入液管道；所述第二入液管道贯穿所述阀芯容置槽，所述阀门口形成于所述阀芯容置槽和所述第二入液管道之间；
    所述出液管道包括靠近所述阀门口贯穿所述连接面以形成出液入口且呈直线型的第一出液管道和与所述第一出液管道基本垂直连接且呈直线型的第二出液管道，所述第二入液管道的中心线与所述第一出液管道的中心线基本平行。
  4. 如权利要求3所述的阀体结构，其特征在于，所述第一入液管道的中心线与所述第二出液管道的中心线重合。
  5. 如权利要求1所述的阀体结构，其特征在于，所述入液管道的横截面积大于所述出液管道的横截面积。
  6. 如权利要求1所述的阀体结构，其特征在于，所述阀体包括连接面并在所述连接面形成有阀芯容置槽；
    所述入液管道包括呈直线型的第一入液管道和与所述第一入液管道基本垂直连接且呈直线型的第二入液管道；所述第二入液管道贯穿所述阀芯容置槽，所述 阀门口形成于所述阀芯容置槽和所述第二入液管道之间；
    所述出液管道包括靠近所述阀门口贯穿所述连接面以形成出液入口且呈直线型的第一出液管道和与所述第一出液管道基本垂直连接且呈直线型的第二出液管道，所述第二入液管道的中心线与所述第一出液管道的中心线基本平行。
  7. 如权利要求1所述的阀体结构，其特征在于，所述阀体结构包括安装于所述阀体的阀门结构，所述阀芯位于所述阀体与所述阀门结构之间，所述阀门结构包括：
    固定设置在所述阀体上的阀芯壳；
    设置在所述阀芯壳和所述阀芯之间的弹性的复位件，
    其中，所述复位件被配置成能够通过所述复位件的弹力迫使所述阀芯密封所述阀门口，并能够在所述入液管道的液压下形变以打开所述阀门口以使得所述入液管道通过所述阀门口与所述出液管道导通。
  8. 如权利要求7所述的阀体结构，其特征在于，所述阀芯壳形成有导槽，所述导槽与所述阀芯容置槽相对；
    所述阀芯包括滑动设置在所述导槽内的导杆和与所述导杆的一端的连接的弹性密封件；
    其中，所述复位件套设在所述导杆上，并用于迫使所述导杆推动所述弹性密封件密封所述阀门口和所述出液入口。
  9. 如权利要求7所述的阀体结构，其特征在于，所述阀体包括柱状连接端，所述连接端的端面设有阀门口；
    所述阀芯壳形成有第一螺纹结构，所述连接端形成有第二螺纹结构，所述第一螺纹结构与所述第二螺纹结构配合以使得所述阀芯壳固定安装在所述连接端上。
  10. 一种压力喷头装置，其特征在于，包括：
    阀体结构，所述阀体结构用于压力喷头装置，包括阀体和阀芯，所述阀体设有入液管道、出液管道和位于所述入液管道和所述出液管道之间的阀门口，所述 阀门口连通所述入液管道以及所述出液管道，并用于与所述阀芯配合，以控制所述入液管道和所述出液管道的导通和隔断，所述入液管道的中心线和所述出液管道的中心线基本共平面；和
    设置在所述阀体结构上的喷嘴，所述喷嘴包括与所述出液管道连通的喷出通道。
  11. 如权利要求10所述的压力喷头装置，其特征在于，所述阀体一体成型。
  12. 如权利要求10所述的压力喷头装置，其特征在于，所述阀体包括连接面并在所述连接面形成有阀芯容置槽，所述阀门口通过所述阀芯容置槽与所述阀芯配合以控制所述入液管道和所述出液管道的导通和隔断；
    所述入液管道包括呈直线型的第一入液管道和与所述第一入液管道基本垂直连接且呈直线型的第二入液管道；所述第二入液管道贯穿所述阀芯容置槽，所述阀门口形成于所述阀芯容置槽和所述第二入液管道之间；
    所述出液管道包括靠近所述阀门口贯穿所述连接面以形成出液入口且呈直线型的第一出液管道和与所述第一出液管道基本垂直连接且呈直线型的第二出液管道，所述第二入液管道的中心线与所述第一出液管道的中心线基本平行。
  13. 如权利要求12所述的压力喷头装置，其特征在于，所述第一入液管道的中心线与所述第二出液管道的中心线重合。
  14. 如权利要求10所述的压力喷头装置，其特征在于，所述入液管道的横截面积大于所述出液管道的横截面积。
  15. 如权利要求10所述的压力喷头装置，其特征在于，所述阀体包括连接面并在所述连接面形成有阀芯容置槽；
    所述入液管道包括呈直线型的第一入液管道和与所述第一入液管道基本垂直连接且呈直线型的第二入液管道；所述第二入液管道贯穿所述阀芯容置槽，所述阀门口形成于所述阀芯容置槽和所述第二入液管道之间；
    所述出液管道包括靠近所述阀门口贯穿所述连接面以形成出液入口且呈直线 型的第一出液管道和与所述第一出液管道基本垂直连接且呈直线型的第二出液管道，所述第二入液管道的中心线与所述第一出液管道的中心线基本平行。
  16. 如权利要求10所述的压力喷头装置，其特征在于，所述阀体结构包括安装于所述阀体的阀门结构，所述阀芯位于所述阀体与所述阀门结构之间，所述阀门结构包括：
    固定设置在所述阀体上的阀芯壳；
    设置在所述阀芯壳和所述阀芯之间的弹性的复位件，
    其中，所述复位件被配置成能够通过所述复位件的弹力迫使所述阀芯密封所述阀门口，并能够在所述入液管道的液压下形变以打开所述阀门口以使得所述入液管道通过所述阀门口与所述出液管道导通。
  17. 如权利要求16所述的压力喷头装置，其特征在于，所述阀芯壳形成有导槽，所述导槽与所述阀芯容置槽相对；
    所述阀芯包括滑动设置在所述导槽内的导杆和与所述导杆的一端的连接的弹性密封件；
    其中，所述复位件套设在所述导杆上，并用于迫使所述导杆推动所述弹性密封件密封所述阀门口和所述出液入口。
  18. 如权利要求16所述的压力喷头装置，其特征在于，所述阀体包括柱状连接端，所述连接端的端面设有阀门口；
    所述阀芯壳形成有第一螺纹结构，所述连接端形成有第二螺纹结构，所述第一螺纹结构与所述第二螺纹结构配合以使得所述阀芯壳固定安装在所述连接端上。
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