WO2017206033A1 - 喷头组件及喷头装置 - Google Patents

喷头组件及喷头装置 Download PDF

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Publication number
WO2017206033A1
WO2017206033A1 PCT/CN2016/083978 CN2016083978W WO2017206033A1 WO 2017206033 A1 WO2017206033 A1 WO 2017206033A1 CN 2016083978 W CN2016083978 W CN 2016083978W WO 2017206033 A1 WO2017206033 A1 WO 2017206033A1
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WO
WIPO (PCT)
Prior art keywords
flow path
showerhead assembly
flow passage
assembly according
main
Prior art date
Application number
PCT/CN2016/083978
Other languages
English (en)
French (fr)
Inventor
金峙良
吴旭民
吴晓龙
卢绰莹
周乐
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
Publication date
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 JP2018562228A priority Critical patent/JP6676786B2/ja
Priority to PCT/CN2016/083978 priority patent/WO2017206033A1/zh
Priority to CN201680004528.3A priority patent/CN107107079B/zh
Priority to KR1020187019817A priority patent/KR102166740B1/ko
Publication of WO2017206033A1 publication Critical patent/WO2017206033A1/zh
Priority to US16/161,614 priority patent/US11338307B2/en

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Classifications

    • 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
    • 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
    • B05B1/36—Outlets for discharging by overflow
    • 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
    • B05B15/40—Filters located upstream of the spraying outlets

Definitions

  • the invention relates to a showerhead assembly and a showerhead assembly having the same.
  • the spraying system is used for spraying pesticides, fertilizers, water and other liquids in agricultural production, plant protection and other fields.
  • a spray head device mounted at the end of the spray system tubing is used to spray liquid onto the surface of the crop.
  • the existing nozzle device has a slower starting and stopping speed due to the presence of trapped gas in its internal flow passage, which further makes the control of the spraying range more difficult.
  • a nozzle assembly comprising:
  • a pipe structure comprising a liquid inlet, a flow channel and a valve port, wherein the valve port is located in the flow channel and is in communication with the flow channel;
  • a spool installed in the flow passage for controlling opening and closing of the valve port
  • the flow channel includes a first main flow channel and an air flow path communicating with the first main flow channel, the air flow channel is inclined with respect to the first main flow channel, and the valve port is located at the air flow.
  • the bottom end of the air flow path is in communication with the liquid inlet.
  • a nozzle device comprising:
  • the nozzle assembly includes a pipeline structure and a valve core
  • the pipeline structure includes a liquid inlet port, a flow channel, a valve port and a liquid outlet
  • the valve port is located in the flow channel and communicates with the flow channel.
  • the liquid inlet and the liquid outlet are located at opposite ends of the flow channel
  • the valve core is installed in the flow channel for controlling opening and closing of the valve port, wherein the flow channel Including a first main flow channel and an air flow path communicating with the first main flow path, the air flow path is inclined with respect to the first main flow path, and the valve port is located at a top end of the air flow path, a bottom end of the air flow passage communicating with the liquid inlet; and
  • a nozzle assembly is detachably coupled to the showerhead assembly, the interior of the nozzle assembly being in communication with the liquid outlet.
  • the nozzle assembly and the nozzle device provided by the present invention have a flow path including a first main flow channel and an air flow passage with the first main flow channel, and the air flow path is opposite to the
  • the first main channel is inclined, the valve port is located at a top end of the air flow path, and the bottom end of the air flow path is in communication with the liquid inlet, so that the trapped gas in the flow channel will gather at At the top of the airflow path, when the valve port is opened, the trapped gas overflows from the valve port, thereby avoiding the problem that the trapped gas causes the nozzle device to be sprayed and stopped at a slower speed, thereby reducing the difficulty of controlling the spray range. .
  • FIG. 1 is a perspective view of a shower head device according to an embodiment of the present invention.
  • Figure 2 is an exploded view of the showerhead assembly of Figure 1.
  • Figure 3 is a cross-sectional view showing a cutting position of the head unit shown in Figure 1.
  • Figure 4 is a cross-sectional view showing another cutting position of the head unit shown in Figure 1 in a sealed state.
  • Fig. 5 is a view showing a conduction state of the head device shown in Fig. 4;
  • a component when referred to as being “fixed” to another component, it can be directly on the other component or the component can be present.
  • a component When a component is considered to "connect” another component, it can be directly connected to another component or possibly a central component.
  • a component When a component is considered to be “set to” another component, it can be placed directly on another component or possibly at the same time.
  • one flow path When one flow path is considered to be “connected” to another flow path, it may be directly connected to another flow path or may have a central flow path at the same time.
  • top is defined by the distance from the ground in the normal use state of the nozzle device, and the top is near the ground, with a ground near The person is the bottom.
  • a shower head device 100 includes a shower head assembly 10 and a nozzle assembly 20 .
  • the nozzle assembly 20 is detachably coupled to the showerhead assembly 10.
  • the nozzle assembly 10 is provided with a pipe structure 101.
  • the pipe structure 101 includes a liquid inlet 102, a flow passage 103, a valve port 104, and a liquid outlet 105.
  • the liquid inlet 102 and the liquid outlet 105 are located at opposite ends of the flow channel 103.
  • the valve port 104 is located in the flow channel 103 and communicates with the flow channel 103.
  • the flow path 103 includes an air flow path 1033.
  • the escape flow path 1033 is disposed obliquely with respect to a central axis of the liquid inlet 102.
  • the flow channel 103 further includes a first main flow channel 1031 in communication with the air flow path 1033.
  • the airflow path 1033 is disposed obliquely with respect to the first main flow channel 1031.
  • the liquid inlet 102 is located at the top end of the first main flow channel 1031.
  • the valve port 104 is located at the top end of the air flow path 1033.
  • the bottom end of the air flow path 1033 is in communication with the liquid inlet port 102.
  • the flow path 103 further includes a connecting flow path 1032 that communicates between the first main flow path 1031 and the air flow path 1033.
  • the flow passage 103 further includes a return flow passage 1034 that selectively communicates with the top end of the escape flow passage 1033.
  • the return flow path 1034 is disposed obliquely with respect to the first main flow path 1031. In the illustrated embodiment, the return flow passage 1034 is disposed substantially parallel to the escape flow passage 1033. The return flow path 1034 is closer to the first main flow path 1031 than the air flow path 1033.
  • the flow path 103 further includes a second main flow path 1035 that communicates with the return flow path 1034.
  • the second main channel 1035 is disposed substantially parallel to the first main channel 1031.
  • the liquid outlet 105 is located at the bottom end of the second main flow channel 1035.
  • the first main flow channel 1031 is parallel to the extending direction of the second main flow channel 1035 such that the flow direction of the liquid in the first main flow channel 1031 and the second main flow channel 1032 is the same.
  • the first main flow channel 1031, the connection flow path 1032, the air flow path 1033, the return flow path 1034, and the second main flow path 1035 are linear flow paths. It can be understood that, in other embodiments, at least one of the first main channel 1031, the connecting channel 1032, the airflow channel 1033, the return channel 1034, and the second channel 1035 is a curve. Flow path.
  • the cross-sectional area of the airflow path 1033 is larger than the cross-sectional area of the first main channel 1031, the connecting channel 1032, the return channel 1034, and the second channel 1035. .
  • the cross-sectional areas of the first main channel 1031, the connecting channel 1032, the return channel 1034, and the second channel 1035 are the same.
  • the cross-sectional area of the airflow path 1033 may be equal to the first main channel 1031, the connecting channel 1032, the return channel 1034, and the second channel 1035. Cross-sectional area.
  • the showerhead assembly 10 includes a valve body 11, a side pressure cover 12, a screen 14, a pressure ring 16, a valve core 17, a top pressure cover 18, and a fixing member 19.
  • the duct structure 101 is disposed inside the valve body 11.
  • the valve body 11 includes a trunk 111 and a branch 116.
  • the trunk 111 and the branch 116 have a substantially y-shaped structure.
  • the liquid inlet 102 and the liquid outlet 105 are respectively located at opposite ends of the trunk 111. Specifically, the liquid inlet 102 is located at the top end of the trunk 111. The liquid outlet 105 is located at the bottom end of the trunk 111.
  • the first main channel 1031 and the second main channel 1035 are both disposed inside the trunk 111.
  • the first main channel 1031 is close to the top end of the trunk 111.
  • the second main channel 1035 is adjacent to the bottom end of the trunk 111.
  • the air flow path 1033 and the return flow path 1034 are disposed inside the branch 116.
  • the connecting flow path 1032 is disposed inside the junction of the trunk 111 and the branch 116. Specifically, in the illustrated embodiment, the connecting flow path 1032 is exposed from one side of the valve body 11.
  • the valve body 11 is provided with a sealing groove 112 around the connecting flow path 1032.
  • the valve body 11 is also provided with a plurality of first fixing holes 113.
  • the top end of the trunk 111 is provided with a sleeve clamp 114 disposed coaxially with the first main flow path 1031.
  • the sleeve clamp 114 is used for fixing an external support structure (not shown) such as a strut.
  • the top end of the first main flow channel 1031 is provided with an internal thread 1111 near the inner side of the liquid inlet 102.
  • the internal thread 1111 is used to mount a fixed liquid supply joint (not shown).
  • the bottom end of the trunk 111 is provided with a quick release connecting member 115.
  • a receiving groove 117 is defined in the top end of the branch 116.
  • the air flow path 1033 and the return flow path 1034 are both in communication with the receiving groove 117.
  • the top ends of the air flow path 1033 and the return flow path 1034 are exposed from the bottom of the receiving groove 117.
  • the receiving groove 117 is disposed coaxially with the airflow path 1033.
  • a first alignment structure 1171 is formed on one side of the receiving groove 117.
  • the opening of the first alignment structure 1171 and the return flow channel 1034 from the bottom of the receiving groove 117 is located at the opposite of the opening of the airflow path 1033 exposed from the bottom of the receiving groove 117. side.
  • the center of the receiving groove 117 is recessed inward to form an annular step portion 118.
  • the step portion 118 is disposed coaxially with the air flow path 1033.
  • the outer portion of the top end of the branch 116 is provided with an external thread 119.
  • the side gland 12 is fixed at the junction of the trunk 111 and the branch 116.
  • the side pressure cover 12 closes the connection flow path 1032.
  • the side pressure cover 12 defines a plurality of second fixing holes 121.
  • the second fixing holes 121 are in one-to-one correspondence with the first fixing holes 113.
  • the side pressure cover 12 is fixed to the valve body 11 by the second fixing hole 121 and the first fixing hole 113 and the fixing member 19 .
  • the showerhead assembly 10 further includes a first sealing member 13.
  • the first sealing member 13 is disposed between the side gland 12 and the valve body 11 .
  • the first sealing member 13 is disposed in the sealing groove 112 for sealing a gap between the side gland 12 and the valve body 11.
  • the first sealing member 13 may be a rubber ring made of rubber or silica gel.
  • the first sealing member 13 can be integrally formed with the side gland 12 .
  • the first sealing member 13 is an annular elastic protruding structure protruding from a surface of the side pressing cover 12 opposite to the valve body 11.
  • the first sealing member 13 corresponds to the sealing groove 112.
  • first sealing member 13 and the sealing groove 112 may be omitted.
  • the side pressure cover 12 can be integrally formed with the valve body 11. At this time, the first sealing member 13, the seal groove 112, the first fixing hole 113, and the fixing member 19 may be omitted.
  • the side pressure cover 12 can be fixedly bonded to the valve body 11 by an adhesive.
  • the first fixing hole 113 and the fixing member 19 may be omitted.
  • other sealing groove structures may be disposed around the sealing groove 112, and the head assembly 10 further includes a sealing member that cooperates with the other sealing groove structure.
  • the screen 14, the pressure ring 16, the valve body 17, and the top cover 18 are disposed with the top end of the branch 116.
  • the filter screen 14, the pressure ring 16, and the valve core 17 are all accommodated in the receiving groove 117, and the top pressing cover 18 is fixed at the top end of the branch 116, and is closed.
  • the storage groove 117 is described.
  • the pressure ring 16 pretensions one end of the spool 17 against the top cover 18.
  • the other end of the spool 17 is elastically abutted with the valve port 104 for controlling opening and closing of the valve port 104.
  • the filter screen 14 has one end fixed to the valve port 104 and the other end extending into the air flow path 1033.
  • the screen 14 is substantially hat-shaped and includes an edge portion 141 and an extension portion 143.
  • the edge portion 141 is disposed coaxially with the extension portion 143.
  • the edge portion 141 is located at one end of the extending portion 143 and extends outward in a direction perpendicular to the axial direction of the screen 14. In this embodiment, the extending portion 143 extends into the airflow path 1033.
  • the edge portion 141 is disposed on the step portion 118.
  • the pressure ring 16 is received in the receiving groove 117.
  • the pressure ring 16 is provided with a first through hole 161.
  • the first through hole 161 is axially disposed along the pressure ring 16 and aligned with the air flow path 1033.
  • the pressure ring 16 defines a notch 163 communicating with the first through hole 161 along an edge of the first through hole 161 .
  • the notch 163 is aligned with the return flow path 1034.
  • the outer edge of the pressure ring 16 is provided with a second alignment structure 165.
  • the second alignment structure 165 and the notch 163 are located on opposite sides of the first through hole 161.
  • the second alignment structure 165 is aligned with the first alignment structure 1171, so that the first through hole 161 and the airflow path are formed after the pressure ring 16 is assembled into the receiving groove 117. 1033 is aligned and the notch 163 is aligned with the return flow path 1034.
  • the spool 17 is disposed inside the duct structure 101.
  • the valve core 17 is installed in the flow channel 103 for controlling opening and closing of the valve port 104.
  • the valve body 17 is an integrally formed structure and can be elastically deformed. One end of the valve body 17 is elastically abutted against the valve port 104. The spool 17 seals the valve port 104, and when the hydraulic pressure in the escape passage 1033 reaches a predetermined value, the spool 17 is elastically deformed to release the seal to the inlet.
  • the valve body 17 is made of an elastic resin material such as rubber or silica gel.
  • the valve body 17 includes a seal portion 171, an elastic portion 173, a connecting portion 175, and a flow guiding portion 177.
  • the sealing portion 171 is disposed opposite to the connecting portion 175.
  • the sealing portion 171 and the connecting portion 175 are connected to opposite ends of the elastic portion 173.
  • the pressure ring 16 pretensions the connecting portion 175 against the top cover 18.
  • the sealing portion 171 elastically abuts the valve opening 104 through the first through hole 161.
  • the sealing portion 171 is elastically abutted with the valve port 104 to achieve sealing and conduction of the valve port 104, thereby achieving a barrier and communication between the return flow path 1034 and the air flow path 1033.
  • the elastic portion 173 is connected to the sealing portion 171.
  • the elastic portion 173 can pre-tension the sealing portion 171 against the valve opening 104 such that the sealing portion 171 seals the valve opening 104, thereby blocking the return flow passage 1034 from the escape flow. Road 1033.
  • the sealing portion 171 presses the elastic portion 173 to elastically deform the elastic portion 173, and releases the seal of the valve port 104, thereby connecting the The return flow path 1034 and the escape flow path 1033 are described.
  • the elastic portion 173 may be recessed, convex or multi-stage curved in a vertical direction of the axial direction of the valve body 17.
  • the elastic portion 173 is recessed toward the inside of the valve body 17 in the vertical direction in the axial direction of the valve body 17.
  • the elastic portion 173 and the sealing portion 171 together define a hollow cavity to facilitate elastic deformation of the elastic portion 173.
  • the connecting portion 175 is connected to an end of the elastic portion 173 away from the sealing portion 171.
  • the connecting portion 175 is a disk-like structure that extends outward in a direction perpendicular to the axial direction of the valve body 17.
  • the outer edge of the connecting portion 175 is interposed between the top pressing cover 18 and the top end of the branch 116.
  • the flow guiding portion 177 protrudes from the sealing portion 171 in a direction away from the elastic portion 173.
  • the flow guiding portion 177 protrudes into the air flow passage 1033.
  • the flow guiding portion 177 protrudes from a middle portion of the sealing portion 171.
  • the flow guiding portion 177 has a substantially conical or frustum shape. The diameter of the flow guiding portion 177 gradually decreases as the distance from the sealing portion 171 increases.
  • the top cover 18 is fixed to the top end of the branch 116 and closes the receiving groove 117.
  • An inner thread 181 that engages with the external thread 119 is formed inside the top cover 18 .
  • the pressing cover 18 is fixed to the top end of the branch 116 by the engagement of the external thread 119 and the internal thread 181.
  • the showerhead assembly 10 further includes a second seal 15.
  • the second sealing member 15 is disposed between the pressure ring 16 and the bottom end of the receiving groove 117.
  • the second sealing member 15 defines a second through hole 151 aligned with the air flow path 1033 and a third through hole 153 aligned with the return flow path 1034.
  • the second through hole 151 is aligned with and communicates with the first through hole 161.
  • the third through hole 153 is aligned with and communicates with the notch 163.
  • the second through hole 151 and the third through hole 153 are spaced apart from each other.
  • the outer edge of the second sealing member 15 is further provided with a third alignment structure 155.
  • the third alignment structure 155 and the third through hole 153 are located on opposite sides of the second through hole 151 .
  • the third alignment structure 155 corresponds to the second alignment structure 165 for mating with the first alignment structure 1171, so that the second sealing member 15 is assembled into the receiving slot 117. Thereafter, the second through hole 151 is aligned with the air flow path 1033 and the third through hole 153 is aligned with the return flow path 1034.
  • the second sealing member 15 is a sealing ring.
  • the second sealing member 15 can be omitted.
  • first alignment structure 1171, the second alignment structure 165, and the third alignment structure 155 may be omitted.
  • the nozzle assembly 20 is detachably coupled to the bottom end of the trunk 111.
  • the nozzle assembly 20 is fixed to the bottom end of the trunk 111 by a tightening lock.
  • the nozzle assembly 20 includes a locking structure 21 that mates with the quick release coupling member 115.
  • the nozzle assembly 20 is fixed to the bottom end of the trunk 111 of the valve body 11 by the engagement of the quick release connecting member 115 and the locking structure 21 .
  • the inside of the nozzle assembly 20 and the liquid outlet 105 communicate with each other.
  • liquid enters the first main flow path 1031 from the liquid inlet 102, flows through the connection flow path 1032, and flows into the air flow path 1033.
  • the retained gas in the flow path 103 will gradually accumulate at the top end of the escape flow path 1033 as the liquid in the flow path 1033 increases, and at the same time, the hydraulic pressure in the escape flow path 1033 gradually Increasing, when the hydraulic pressure in the escape flow passage 1033 is less than a predetermined value, the elastic portion 173 of the spool 17 pre-tensions the seal portion 171 against the valve port 104 to seal the valve Mouth 104.
  • the elastic portion 173 of the valve body 17 is elastically deformed, and the sealing portion 171 of the valve body 17 is separated from the valve port 104, thereby releasing the The sealing portion 171 seals the valve port 104 such that the air flow path 1033 passes through the second through hole 151, the first through hole 161, the notch 163, and the third through hole 153. It communicates with the return flow path 1034.
  • the trapped gas in the flow passage 103 enters the return flow passage 1034 with the liquid when the valve port 104 is opened, and is discharged through the second main flow passage 1035.
  • the predetermined value is a minimum hydraulic pressure that separates the seal portion 171 from the valve port 104.
  • the spool 17 can be a combination of a valve stem, a spring, and a sealing ring.
  • the seal ring is fixed to one end of the valve stem for sealing the valve port 104.
  • the spring is coupled to the other end of the valve stem or sleeved on the valve stem. The spring is for providing a preload force to the valve stem to seal the valve port 104 to the valve port 104 when the spray is stopped.
  • the nozzle assembly and the nozzle device provided by the present invention have a flow path including a first main flow channel and an air flow passage with the first main flow channel, and the air flow path is opposite to the
  • the first main channel is inclined, the valve port is located at a top end of the air flow path, and the bottom end of the air flow path is in communication with the liquid inlet, so that the trapped gas in the flow channel will gather at At the top of the airflow path, when the valve port is opened, the trapped gas overflows from the valve port, thereby avoiding the problem that the trapped gas causes the nozzle device to be sprayed and stopped at a slower speed, thereby reducing the difficulty of controlling the spray range. .

Landscapes

  • Nozzles (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Check Valves (AREA)

Abstract

一种喷头组件，包括：管道结构（101），包括进液口（102）、流道（103）及阀门口（104），所述阀门口（104）位于所述流道（103）内，并与所述流道（103）相连通；阀芯（17），安装在所述流道（103）内，用于控制所述阀门口（104）的开启与关闭；其中，所述流道（103）包括逸气流道（1033），所述逸气流道（1033）相对于进液口（102）的中轴线倾斜设置，所述阀门口（104）位于所述逸气流道（1033）的顶端，所述逸气流道（1033）的底端与所述进液口（102）连通。

Description

喷头组件及喷头装置 技术领域
本发明涉及一种喷头组件及具有所述喷头组件的喷头装置。
背景技术
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。安装于喷洒系统管路端头的喷头装置用于将液体喷洒至作物表面。现有的喷头装置由于其内部流道中存在滞留气体，导致其起喷及停喷速度较慢，进而造成喷洒范围的控制难度加大。
发明内容
有鉴于此，有必要提供一种解决上述问题的喷头组件及包括所述喷头组件的喷头装置。
一种喷头组件，包括：
管道结构，包括进液口、流道及阀门口，所述阀门口位于所述流道内，并与所述流道相连通；
阀芯，安装在所述流道内，用于控制所述阀门口的开启与关闭；
其中，所述流道包括第一主流道及与所述第一主流道连通的逸气流道，所述逸气流道相对于所述第一主流道倾斜设置，所述阀门口位于所述逸气流道的顶端，所述逸气流道的底端与所述进液口连通。
一种喷头装置，包括：
喷头组件，包括管道结构及阀芯，所述管道结构，包括进液口、流道、阀门口及出液口，所述阀门口位于所述流道内，并与所述流道相连通，所述进液口与所述出液口位于所述流道的相对两端，所述阀芯，安装在所述流道内，用于控制所述阀门口的开启与关闭，其中，所述流道包括第一主流道及与所述第一主流道连通的逸气流道，所述逸气流道相对于所述第一主流道倾斜设置，所述阀门口位于所述逸气流道的顶端，所述逸气流道的底端与所述进液口连通；以及
喷嘴组件，与所述喷头组件可拆卸连接，所述喷嘴组件内部与所述出液口连通。
相对于现有技术，本发明提供的喷头组件及喷头装置，由于其管道结构的流道包括第一主流道及与所述第一主流道连通逸气流道，且所述逸气流道相对于所述第一主流道倾斜设置，所述阀门口位于所述逸气流道的顶端，所述逸气流道的底端与所述进液口连通，因此，所述流道中的滞留气体将聚集在逸气流道的顶端，当所述阀门口被打开时，滞留气体从所述阀门口溢出，从而避免滞留气体导致所述喷头装置起喷及停喷速度较慢的问题，进而降低喷洒范围的控制难度。
 附图说明
图1是本发明实施方式提供的喷头装置的立体图
图2是图1所示喷头装置的分解图。
图3是图1所示的喷头装置的一剖切位置的剖面图。
图4是图1所示的喷头装置密封状态下的另一剖切位置的剖面图。
图5是图4所示的喷头装置的导通状态图。
主要元件符号说明
喷头装置 100
喷头组件 10
喷嘴组件 20
管道结构 101
进液口 102
流道 103
阀门口 104
出液口 105
第一主流道 1031
逸气流道 1033
连接流道 1032
回流流道 1034
第二主流道 1035
阀体 11
侧压盖 12
滤网 14
压环 16
阀芯 17
顶压盖 18
固定件 19
主干 111
分支 116
密封槽 112
第一固定孔 113
套筒卡箍 114
内螺纹 1111、181
快拆连接部件 115
收容槽 117
第一对位结构 1171
台阶部 118
外螺纹 119
第二固定孔 121
第一密封件 13
边缘部 141
延伸部 143
第一通孔 161
缺口 163
第二对位结构 165
密封部 171
弹性部 173
连接部 175
导流部 177
第二密封件 15
第二通孔 151
第三通孔 153
第三对位结构 155
锁固结构 21
如下具体实施方式将结合上述附图进一步说明本发明。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明的是，当组件被称为“固定于”另一个组件，它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“连接”另一个组件，它可以是直接连接到另一个组件或者可能同时存在居中组件。当一个组件被认为是“设置于”另一个组件，它可以是直接设置于另一个组件上或者可能同时存在居中组件。当一个流道被认为是“连通”另一个流道，它可以是直接与另一个流道连通或者可能同时存在居中流道。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“及／或”包括一个或多个相关的所列项目的任意的和所有的组合。
另外，本文所使用的术语“顶端”“底端”“顶部”“底部”是以所述喷头装置正常使用状态下，距地面位置的远近来定义，距地面远者即为顶，具地面近者即为底。
下面结合附图，对本发明的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
请参阅图1，本发明实施方式提供的喷头装置100包括喷头组件10及喷嘴组件20。所述喷嘴组件20可拆卸连接于所述喷头组件10。
请一并参阅图2、图3及图4，所述喷头组件10内设有管道结构101。所述管道结构101包括进液口102、流道103、阀门口104及出液口105。所述进液口102与所述出液口105位于所述流道103的相对两端。所述阀门口104位于所述流道103内，并与所述流道103相连通。
所述流道103包括逸气流道1033。所述逸气流道1033相对于所述进液口102的中轴线倾斜设置。所述流道103还包括与所述逸气流道1033连通的第一主流道1031。图式实施方式中，所述逸气流道1033相对于所述第一主流道1031倾斜设置。所述进液口102位于所述第一主流道1031的顶端。所述阀门口104位于所述逸气流道1033的顶端。所述逸气流道1033的底端与所述进液口102连通。
所述流道103还包括连通在所述第一主流道1031及所述逸气流道1033之间的连接流道1032。
所述流道103还包括与所述逸气流道1033的顶端选择性相连通的回流流道1034。所述回流流道1034相对于所述第一主流道1031倾斜设置。图示实施方式中，所述回流流道1034与所述逸气流道1033大致平行设置。所述回流流道1034较所述逸气流道1033靠近所述第一主流道1031。
所述流道103还包括与所述回流流道1034相互连通的第二主流道1035。所述第二主流道1035与所述第一主流道1031大致平行设置。所述出液口105位于所述第二主流道1035的底端。本实施方式中，所述第一主流道1031与所述第二主流道1035的延伸方向平行，使得所述第一主流道1031与所述第二主流道1032中的液体的流向相同。
本实施方式中，所述第一主流道1031、所述连接流道1032、所述逸气流道1033、所述回流流道1034及所述第二主流道1035均为直线型流道。可以理解，其他实施方式中，所述第一主流道1031、所述连接流道1032、所述逸气流道1033、所述回流流道1034及所述第二主流道1035中的至少一个为曲线型流道。
图式实施方式中，所述逸气流道1033的横截面积大于所述第一主流道1031、所述连接流道1032、所述回流流道1034及所述第二主流道1035的横截面积。所述第一主流道1031、所述连接流道1032、所述回流流道1034及所述第二主流道1035的横截面积相同。
可以理解，其他实施方式中，所述逸气流道1033的横截面积可等于所述第一主流道1031、所述连接流道1032、所述回流流道1034及所述第二主流道1035的横截面积。
所述喷头组件10包括阀体11、侧压盖12、滤网14、压环16、阀芯17、顶压盖18及固定件19。
所述管道结构101设置于所述阀体11的内部。所述阀体11包括主干111及分支116。具体在图式实施方式中，所述主干111与所述分支116大致呈y形结构。
所述进液口102及所述出液口105分别位于所述主干111的相对两端。具体地，所述进液口102位于所述主干111的顶端。所述出液口105位于所述主干111的底端。所述第一主流道1031及所述第二主流道1035均设置于所述主干111的内部。所述第一主流道1031靠近所述主干111的顶端。所述第二主流道1035靠近所述主干111的底端。所述逸气流道1033及所述回流流道1034设置于所述分支116的内部。所述连接流道1032设置于所述主干111与所述分支116的连接处的内部。具体在图式实施方式中，所述连接流道1032自所述阀体11的一侧露出。所述阀体11环绕所述连接流道1032开设有密封槽112。所述阀体11还开设有多个第一固定孔113。所述多个第一固定孔113环绕所述密封槽112设置。
所述主干111的顶端设置有与所述第一主流道1031同轴设置的套筒卡箍114。所述套筒卡箍114用于固定支杆等外接支撑结构（图未示）。具体在图式实施方式中，所述第一主流道1031的顶端靠近所述进液口102的内侧设置有内螺纹1111。所述内螺纹1111用于安装固定供液接头（图未示）。所述主干111的底端设置有快拆连接部件115。
所述分支116的顶端内部开设有收容槽117。所述逸气流道1033及所述回流流道1034均与所述收容槽117连通。本实施方式中，所述逸气流道1033及所述回流流道1034的顶端均自所述收容槽117的底部露出。所述收容槽117与所述逸气流道1033共轴设置。所述收容槽117内一侧形成有第一对位结构1171。本实施方式中，所述第一对位结构1171与所述回流流道1034自所述收容槽117底部露出的开口位于所述逸气流道1033自所述收容槽117底部露出的开口的相对两侧。所述收容槽117中央向内凹陷形成环形的台阶部118。所述台阶部118与所述逸气流道1033同轴设置。所述分支116的顶端的外部设置有外螺纹119。
所述侧压盖12固定在所述主干111与所述分支116的连接处。所述侧压盖12封闭所述连接流道1032。所述侧压盖12开设有多个第二固定孔121。所述第二固定孔121与所述第一固定孔113一一对应。所述侧压盖12通过所述第二固定孔121、所述第一固定孔113与所述固定件19的配合固定在所述阀体11上。
本实施方式中，所述喷头组件10还包括第一密封件13。所述第一密封件13设置于所述侧压盖12与所述阀体11之间。本实施方式中，所述第一密封件13设置于所述密封槽112中，用于密封所述侧压盖12与所述阀体11之间缝隙。所述第一密封件13可为橡胶或硅胶等制成的胶圈。
可以理解，其他实施方式中，所述第一密封件13可与所述侧压盖12一体成型。所述第一密封件13为自所述侧压盖12与所述阀体11相对的表面凸设的环状弹性凸起结构。所述第一密封件13与所述密封槽112对应，当所述侧压盖固定在所述阀体11上，所述第一密封件13密封所述侧压盖12与所述阀体11之间的缝隙。
可以理解，其他实施方式中，所述第一密封件13及所述密封槽112均可省略。
可以理解，其他实施方式中，所述侧压盖12可与所述阀体11一体成型。此时，所述第一密封件13、所述密封槽112、所述第一固定孔113及所述固定件19均可省略。
可以理解，其他实施方式中，所述侧压盖12可通过粘剂固定粘接至所述阀体11。此时，所述第一固定孔113及所述固定件19均可省略。
可以理解，其他实施方式中，为进一步巩固密封效果，可环绕所述密封槽112设置其他密封槽结构，所述喷头组件10还包括与所述其他密封槽结构配合的密封件。
所述滤网14、所述压环16、所述阀芯17及所述顶压盖18设置与所述分支116的顶端。本实施方式中，所述滤网14、所述压环16、所述阀芯17均收容于所述收容槽117中，所述顶压盖18固定在所述分支116的顶端，并封闭所述收容槽117。所述压环16将所述阀芯17的一端预紧抵压在所述顶压盖18上。所述阀芯17的另一端与所述阀门口104弹性抵接，用于控制所述阀门口104的开启与关闭。
所述滤网14一端固定在所述阀门口104，另一端延伸至所述逸气流道1033内。所述滤网14大致呈帽状，包括边缘部141及延伸部143。所述边缘部141与所述延伸部143同轴设置。所述边缘部141位于所述延伸部143的一端，并沿所述滤网14的轴向的垂直方向向外延伸设置。本实施方式中，所述延伸部143延伸至所述逸气流道1033内。所述边缘部141设置于所述台阶部118。
所述压环16收容于所述收容槽117内。所述压环16开设有第一通孔161。所述第一通孔161沿所述压环16轴向设置，并与所述逸气流道1033对准。所述压环16沿所述第一通孔161的边缘开设有与所述第一通孔161连通的缺口163。所述缺口163与所述回流流道1034对准。当所述阀门口104开启时，所述第一通孔161与所述逸气流道1033连通，所述缺口163与所述回流流道1034连通，从而使所述逸气流道1033与所述回流流道1034相互连通。所述压环16外缘开设有第二对位结构165。本实施方式中，所述第二对位结构165与所述缺口163位于所述第一通孔161的相对两侧。所述第二对位结构165与所述第一对位结构1171配合对位，以使所述压环16组入所述收容槽117后，所述第一通孔161与所述逸气流道1033对准，且所述缺口163与所述回流流道1034对准。
所述阀芯17设置在所述管道结构101内部。本实施方式中，所述阀芯17安装在所述流道103内，用于控制所述阀门口104的开启与关闭。
本实施方式中，所述阀芯17为一体成型结构，并且能够发生弹性形变。所述阀芯17一端与所述阀门口104弹性抵接。所述阀芯17密封所述阀门口104，并且在所述逸气流道1033内的液压达到预定值时，所述阀芯17产生弹性形变而解除对所述进液口的密封。本实施方式中，所述阀芯17采用橡胶或硅胶等弹性树脂材料制成。
本实施方式中，所述阀芯17包括密封部171、弹性部173、连接部175及导流部177。所述密封部171与所述连接部175相背设置。所述密封部171与所述连接部175连接在所述弹性部173的相背两端。所述压环16将所述连接部175预紧抵压在所述顶压盖18上。所述密封部171穿过所述第一通孔161弹性抵接所述阀门口104。
所述密封部171与所述阀门口104弹性抵接，以实现所述阀门口104的密封及导通，从而实现所述回流流道1034与所述逸气流道1033的阻隔及连通。
所述弹性部173连接于所述密封部171。所述弹性部173能够将所述密封部171预紧抵持于所述阀门口104，以使所述密封部171密封所述阀门口104，从而阻隔所述回流流道1034与所述逸气流道1033。在所述逸气流道1033内的液压达到预定值时，所述密封部171抵压所述弹性部173使所述弹性部173发生弹性形变，解除对所述阀门口104的密封，从而连通所述回流流道1034与所述逸气流道1033。
所述弹性部173可沿所述阀芯17轴向的垂直方向内陷、外凸或多级弯曲设置。本实施方式中，所述弹性部173为沿所述阀芯17轴向的垂直方向向所述阀芯17内部凹陷设置。所述弹性部173与所述密封部171共同围成一个中空腔体，以利于所述弹性部173的弹性形变。
所述连接部175连接至所述弹性部173远离所述密封部171的端部。所述本实施方式中，所述连接部175为沿所述阀芯17轴向的垂直方向向外延伸设置的圆盘状结构。所述连接部175的外缘夹设在所述顶压盖18与所述分支116的顶端之间。
所述导流部177自所述密封部171向背离所述弹性部173的方向凸设。所述导流部177凸伸入所述逸气流道1033。图式实施方式中，所述导流部177自所述密封部171中部凸设。所述导流部177大致呈锥形或锥台形。所述导流部177的直径随着与所述密封部171之间的距离的增大而逐渐减小。
当与所述流道103连通的水泵（图未示）停止工作时，所述逸气流道1033内的液压逐渐降低，所述弹性部173弹性回复，使所述密封部171再次密封所述阀门口104，使得所述喷头装置100在水泵停止后不发生滴漏。
所述顶压盖18固定在所述分支116的顶端，并封闭所述收容槽117。所述顶压盖18内侧形成有与所述外螺纹119配合的内螺纹181。所述顶压盖18通过所述外螺纹119与所述内螺纹181的配合固定在所述分支116的顶端。
本实施方式中，所述喷头组件10还包括第二密封件15。所述第二密封件15设置在所述压环16与所述收容槽117底端之间。所述第二密封件15开设有与所述逸气流道1033对准的第二通孔151及与所述回流流道1034对准的第三通孔153。所述第二通孔151与所述第一通孔161对准并连通。所述第三通孔153与所述缺口163对准并连通。图式实施方式中，所述第二通孔151与所述第三通孔153相互间隔设置。所述第二密封件15外缘还设置有第三对位结构155。所述第三对位结构155与所述第三通孔153位于所述第二通孔151的相对两侧。所述第三对位结构155与所述第二对位结构165对应，用于与所述第一对位结构1171配合对位，以使所述第二密封件15组入所述收容槽117后，所述第二通孔151与所述逸气流道1033对准且所述第三通孔153与所述回流流道1034对准。本实施方式中，所述第二密封件15为密封圈。
可以理解，其他实施方式中，所述第二密封件15可省略。
可以理解，其他实施方式中，所述第一对位结构1171、所述第二对位结构165及所述第三对位结构155均可省略。
所述喷嘴组件20可拆卸地连接在所述主干111的底端。所述喷嘴组件20通过旋紧锁扣固定于所述主干111的底端。所述喷嘴组件20包括与所述快拆连接部件115相互配合的锁固结构21。所述喷嘴组件20通过所述快拆连接部件115与所述锁固结构21的配合固定于所述阀体11的主干111的底端。所述喷嘴组件20内部与所述出液口105相互连通。
请一并参阅图4及图5，工作时，液体自所述进液口102进入所述第一主流道1031，流经所述连接流道1032，流入所述逸气流道1033。所述流道103内的滞留气体，随着所述逸气流道1033内液体的增多，将逐渐聚集在所述逸气流道1033的顶端，与此同时，所述逸气流道1033内的液压逐渐增大，当所述逸气流道1033内的液压小于一预定值时，所述阀芯17的弹性部173将所述密封部171预紧抵持于所述阀门口104，以密封所述阀门口104。当所述逸气流道1033内的液压达到所述预定值时，所述阀芯17的弹性部173产生弹性形变，所述阀芯17的密封部171与所述阀门口104分离，从而解除所述密封部171对所述阀门口104的密封，以使所述逸气流道1033通过所述第二通孔151、所述第一通孔161、所述缺口163及所述第三通孔153与所述回流流道1034相互连通。所述流道103内的滞留气体在所述阀门口104开启时随液体进入所述回流流道1034，进而经所述第二主流道1035排出。本实施方式中，所述预定值为使所述密封部171与所述阀门口104分离的最小液压。
可以理解，其他实施方式中，所述阀芯17可为阀杆、弹簧与密封圈的组合。所述密封圈固定于所述阀杆的一端，用于密封所述阀门口104。所述弹簧连接在所述阀杆的另一端或套设于所述阀杆上。所述弹簧用于提供为所述阀杆提供预紧力，以在停喷时使所述密封圈密封所述阀门口104。
相对于现有技术，本发明提供的喷头组件及喷头装置，由于其管道结构的流道包括第一主流道及与所述第一主流道连通逸气流道，且所述逸气流道相对于所述第一主流道倾斜设置，所述阀门口位于所述逸气流道的顶端，所述逸气流道的底端与所述进液口连通，因此，所述流道中的滞留气体将聚集在逸气流道的顶端，当所述阀门口被打开时，滞留气体从所述阀门口溢出，从而避免滞留气体导致所述喷头装置起喷及停喷速度较慢的问题，进而降低喷洒范围的控制难度。
对于本领域的普通技术人员来说，可以根据本发明的技术构思做出其它各种相应的改变与变形，而所有这些改变与变形都应属于本发明权利要求的保护范围。

Claims (64)

  1. 一种喷头组件，包括：
    管道结构，包括进液口、流道及阀门口，所述阀门口位于所述流道内，并与所述流道相连通；
    阀芯，安装在所述流道内，用于控制所述阀门口的开启与关闭；
    其中，所述流道包括逸气流道，所述逸气流道相对于所述进液口的中轴线倾斜设置，所述阀门口位于所述逸气流道的顶端，所述逸气流道的底端与所述进液口连通。
  2. 如权利要求1所述的喷头组件，其特征在于，所述流道还包括与所述逸气流道相连通的第一主流道，所述进液口位于所述第一主流道的顶端。
  3. 如权利要求2所述的喷头组件，其特征在于，所述流道还包括连通在所述第一主流道与所述逸气流道之间的连接流道。
  4. 如权利要求3所述的喷头组件，其特征在于，所述流道还包括与所述逸气流道的顶端相连通的回流流道，通过所述阀芯控制所述阀门口的开启与关闭，实现对所述回流流道与所述逸气流道的连通与阻隔。
  5. 如权利要求4所述的喷头组件，其特征在于，所述回流流道与所述逸气流道平行设置，且较所述逸气流道靠近所述第一主流道。
  6. 如权利要求4所述的喷头组件，其特征在于，所述流道还包括与所述回流流道相互连通的第二主流道。
  7. 如权利要求6所述的喷头组件，其特征在于，所述第二主流道与所述第一主流道平行设置。
  8. 如权利要求6所述的喷头组件，其特征在于，所述逸气流道的横截面积大于所述第一主流道、连接流道、回流流道及第二主流道的横截面积。
  9. 如权利要求6所述的喷头组件，其特征在于，所述第一主流道、所述连接流道、所述回流流道及所述第二主流道的横截面积相同。
  10. 如权利要求6所述的喷头组件，其特征在于，所述管道结构还包括出液口，所述出液口位于所述第二主流道的底端。
  11. 如权利要求10所述的喷头组件，其特征在于，所述喷头组件包括阀体，所述管道结构设置于所述阀体内部。
  12. 如权利要求11所述的喷头组件，其特征在于，所述阀体包括主干及分支，所述主干与分支形成y型结构。
  13. 如权利要求12所述的喷头组件，其特征在于，所述第一主流道及第二主流道设置于所述主干内部，所述进液口与出液口位于所述主干的两端，所述逸气流道及所述回流流道设置于所述分支内部，所述连接流道设置于所述主干与所述分支连接处的内部。
  14. 如权利要求13所述的喷头组件，其特征在于，所述主干的顶端设置有与所述第一主流道同轴设置的套筒卡箍。
  15. 如权利要求14所述的喷头组件，其特征在于，所述第一主流道的顶端设置有内螺纹。
  16. 如权利要求13所述的喷头组件，其特征在于，所述喷头组件包括侧压盖，所述侧压盖固定在所述主干与所述分支的连接处，所述侧压盖封闭所述连接流道。
  17. 如权利要求16所述的喷头组件，其特征在于，所述喷头组件还包括第一密封件，所述第一密封件用于密封所述侧压盖与所述阀体之间的缝隙。
  18. 如权利要求13所述的喷头组件，其特征在于，所述喷头组件包括滤网，所述滤网一端固定在所述阀门口，另一端延伸至所述逸气流道内。
  19. 如权利要求13所述的喷头组件，其特征在于，所述分支的顶端设置有收容槽，所述逸气流道及所述回流流道均与所述收容槽连通。
  20. 如权利要求19所述的喷头组件，其特征在于，所述喷头组件包括固定在所述分支的顶端的顶压盖，所述顶压盖封闭所述收容槽。
  21. 如权利要求19所述的喷头组件，其特征在于，所述喷头组件包括压环，所述压环收容在所述收容槽内，所述压环用于将所述阀芯的一端预紧抵压在所述顶压盖上，所述压环开设有对应连通至所述逸气流道的轴向第一通孔，及与所述第一通孔连通且对应连通至所述回流流道的缺口。
  22. 如权利要求21所述的喷头组件，其特征在于，所述阀芯包括连接部，及与所述连接部相背的密封部，所述压环将所述连接部预紧抵压在所述顶压盖上，所述密封部穿过所述第一通孔弹性抵接所述阀门口。
  23. 如权利要求22所述的喷头组件，其特征在于，所述连接部为沿所述阀芯轴向的垂直方向向外延伸的圆盘状结构，所述连接部的外缘夹设在所述顶压盖与所述分支的顶端之间。
  24. 如权利要求22所述的喷头组件，其特征在于，所述阀芯还包括连接在所述连接部与所述密封部之间的弹性部，所述弹性部能够将所述密封部弹性抵持于所述阀门口。
  25. 如权利要求22所述的喷头组件，其特征在于，所述阀芯还包括自所述密封部凸伸入所述逸气流道内的导流部。
  26. 如权利要求25所述的喷头组件，其特征在于，所述导流部的直径随与所述密封部之间的距离的增大而逐渐减小。
  27. 如权利要求25所述的喷头组件，其特征在于，所述导流部为锥形或锥台形。
  28. 如权利要求24所述的喷头组件，其特征在于，所述密封部与弹性部共同围成一中空腔体。
  29. 如权利要求24所述的喷头组件，其特征在于，所述弹性部沿所述阀芯轴向的垂直方向内陷、外凸或多级弯曲设置。
  30. 如权利要求23所述的喷头组件，其特征在于，所述喷头组件还包括设置于所述压环与所述收容槽底端之间的第二密封件，所述第二密封件开设有与所述逸气流道相互连通的第二通孔及与所述回流流道相互连通的第三通孔。
  31. 如权利要求30所述的喷头组件，其特征在于，所述第二通孔与所述第三通孔相互间隔。
  32. 如权利要求13所述的喷头组件，其特征在于，所述主干的底端设有快拆连接部件，用于与喷嘴组件可拆卸连接。
  33. 一种喷头装置，其特征在于，包括：
    喷头组件，包括：
    管道结构，包括进液口、流道、阀门口及出液口，所述阀门口位于所述流道内，并与所述流道相连通，所述进液口与所述出液口位于所述流道的相对两端；
    阀芯，安装在所述流道内，用于控制所述阀门口的开启与关闭；
    其中，所述流道包括逸气流道，所述逸气流道相对于所述进液口的中轴线倾斜设置，所述阀门口位于所述逸气流道的顶端，所述逸气流道的底端与所述进液口连通；以及
    喷嘴组件，与所述喷头组件可拆卸连接，所述喷嘴组件内部与所述出液口连通。
  34. 如权利要求33所述的喷头组件，其特征在于，所述流道还包括与所述逸气流道相连通的第一主流道，所述进液口位于所述第一主流道的顶端。
  35. 如权利要求34所述的喷头组件，其特征在于，所述流道还包括连通在所述第一主流道与所述逸气流道之间的连接流道，所述连接流道用于连通所述第一主流道与所述逸气流道。
  36. 如权利要求35所述的喷头组件，其特征在于，所述流道还包括与所述逸气流道的顶端相连通的回流流道，通过所述阀芯控制所述阀门口的开启与关闭，实现对所述回流流道与所述逸气流道的连通与阻隔。
  37. 如权利要求36所述的喷头组件，其特征在于，所述回流流道与所述逸气流道平行设置，且较所述逸气流道靠近所述第一主流道。
  38. 如权利要求36所述的喷头组件，其特征在于，所述流道还包括与所述回流流道相互连通的第二主流道。
  39. 如权利要求38所述的喷头组件，其特征在于，所述第二主流道与所述第一主流道平行设置。
  40. 如权利要求38所述的喷头组件，其特征在于，所述逸气流道的横截面积大于所述第一主流道、连接流道、回流流道及第二主流道的横截面积。
  41. 如权利要求38所述的喷头组件，其特征在于，所述第一主流道、所述连接流道、所述回流流道及所述第二主流道的横截面积相同。
  42. 如权利要求38所述的喷头组件，其特征在于，所述出液口位于所述第二主流道的底端。
  43. 如权利要求42所述的喷头组件，其特征在于，所述喷头组件包括阀体，所述管道结构设置于所述阀体内部。
  44. 如权利要求43所述的喷头组件，其特征在于，所述阀体包括主干及分支，所述主干与分支形成y型结构。
  45. 如权利要求44所述的喷头组件，其特征在于，所述第一主流道及第二主流道设置于所述主干内部，所述进液口与出液口位于所述主干的两端，所述逸气流道及所述回流流道设置于所述分支内部，所述连接流道设置于所述主干与所述分支连接处的内部。
  46. 如权利要求45所述的喷头组件，其特征在于，所述主干的顶端设置有与所述第一主流道同轴设置的套筒卡箍。
  47. 如权利要求46所述的喷头组件，其特征在于，所述第一主流道的顶端设置有内螺纹。
  48. 如权利要求45所述的喷头组件，其特征在于，所述喷头组件包括侧压盖，所述侧压盖固定在所述主干与所述分支的连接处，所述侧压盖与所述阀体围成所述连接流道。
  49. 如权利要求48所述的喷头组件，其特征在于，所述喷头组件还包括第一密封件，所述第一密封件用于密封所述侧压盖与所述阀体之间的缝隙。
  50. 如权利要求45所述的喷头组件，其特征在于，所述喷头组件包括滤网，所述滤网一端固定在所述阀门口，另一端延伸至所述逸气流道内。
  51. 如权利要求45所述的喷头组件，其特征在于，所述分支的顶端设置有收容槽，所述逸气流道及所述回流流道均与所述收容槽连通。
  52. 如权利要求51所述的喷头组件，其特征在于，所述喷头组件包括固定在所述分支的顶端的顶压盖，所述顶压盖封闭所述收容槽。
  53. 如权利要求51所述的喷头组件，其特征在于，所述喷头组件包括压环，所述压环收容在所述收容槽内，所述压环用于将所述阀芯的一端预紧抵压在所述顶压盖上，所述压环开设有对应连通至所述逸气流道的轴向第一通孔，及与所述第一通孔连通且对应连通至所述回流流道的缺口。
  54. 如权利要求53所述的喷头组件，其特征在于，所述阀芯包括连接部，及与所述连接部相背的密封部，所述压环将所述连接部预紧抵压在所述顶压盖上，所述密封部穿过所述第一通孔弹性抵接所述阀门口。
  55. 如权利要求54所述的喷头组件，其特征在于，所述连接部为沿所述阀芯轴向的垂直方向向外延伸的圆盘状结构，所述连接部的外缘夹设在所述顶压盖与所述分支的顶端之间。
  56. 如权利要求54所述的喷头组件，其特征在于，所述阀芯还包括连接在所述连接部与所述密封部之间的弹性部，所述弹性部能够将所述密封部弹性抵持于所述阀门口。
  57. 如权利要求54所述的喷头组件，其特征在于，所述阀芯还包括自所述密封部凸伸入所述逸气流道内的导流部。
  58. 如权利要求57所述的喷头组件，其特征在于，所述导流部的直径随与所述密封部之间的距离的增大而逐渐减小。
  59. 如权利要求57所述的喷头组件，其特征在于，所述导流部为锥形或锥台形。
  60. 如权利要求56所述的喷头组件，其特征在于，所述密封部与弹性部共同围成一中空腔体。
  61. 如权利要求56所述的喷头组件，其特征在于，所述弹性部沿所述阀芯轴向的垂直方向内陷、外凸或多级弯曲设置。
  62. 如权利要求55所述的喷头组件，其特征在于，所述喷头组件还包括设置于所述压环与所述收容槽底端之间的第二密封件，所述第二密封件开设有与所述逸气流道相互连通的第二通孔及与所述回流流道相互连通的第三通孔。
  63. 如权利要求62所述的喷头组件，其特征在于，所述第二通孔与所述第三通孔相互间隔。
  64. 如权利要求43所述的喷头组件，其特征在于，所述主干的底端设有快拆连接部件，用于与所述喷嘴组件可拆卸连接。
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