CN205995695U - Only drip device - Google Patents
Only drip device Download PDFInfo
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- CN205995695U CN205995695U CN201620999790.3U CN201620999790U CN205995695U CN 205995695 U CN205995695 U CN 205995695U CN 201620999790 U CN201620999790 U CN 201620999790U CN 205995695 U CN205995695 U CN 205995695U
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- valve element
- fluid passage
- housing
- opening
- groove
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Abstract
The utility model discloses a kind of only drip device.Device should only be dripped to include：Housing, housing is hollow structure, the inwall of hollow structure forms fluid passage, the first end of housing is enclosed construction, second end of housing is provided with the opening of connection fluid passage, the inlet of device is dripped in the side of housing till being provided with the through hole of connection fluid passage, through hole, drip the liquid outlet of device till stating the opening of second end of the housing；Valve element, valve element is arranged in fluid passage, and valve element includes upper, middle and lower, top is fixed in fluid passage, and bottom and middle part are made using elastomeric material, and the outer surface at middle part is provided with groove circumferentially, the opening of groove is connected with through hole, and bottom compresses fluid passage.The device that only drips of this utility model is used in plant protection unmanned plane, medicinal liquid can be stoped to ooze from shower nozzle in non-spray state, it is to avoid liquid waste.
Description
Technical field
This utility model is related to Hydraulic Field, more particularly, to a kind of for only dripping between the pump housing and hydraulic system outlet
Device.
Background technology
In agriculture and forestry field, carrying out agriculture and forestry dispenser by plant protection unmanned plane has been a kind of common farm equipment, adopts
Carry out agriculture and forestry dispenser with plant protection unmanned plane and both can lift work efficiency, can avoid crops are damaged again.Plant protection
The pesticide spraying system of unmanned plane generally includes and holds the cartridge case of medicinal liquid, the shower nozzle of spray liquid, the pump pumping out medicinal liquid in cartridge case
Pencil between body and the aforementioned various pieces of connection.
In prior art, carry in the way that medicinal liquid flies to dispenser position in plant protection unmanned plane, shower nozzle is already at waiting to spray
State, now although the pump housing is in idle state, the medicinal liquid in cartridge case can flow to via pencil under gravity
Shower nozzle, constantly oozes finally by shower nozzle, causes the waste of medicinal liquid.
Pesticide spraying system for plant protection unmanned plane in prior art easily wastes the problem of medicinal liquid, not yet proposes effectively at present
Solution.
Utility model content
The purpose of this utility model is to provide an a kind of only device, this is only dripped the pump housing and the spray that device is connected to plant protection unmanned plane
When between head, medicinal liquid can be stoped to ooze in non-spray state, it is to avoid liquid waste.
To achieve these goals, the device that only drips that this utility model provides includes：Housing, housing is hollow structure, hollow
The inwall of structure forms fluid passage, and the first end of housing is enclosed construction, and the second end of housing is provided with connection fluid passage
Opening, the side of housing is dripped the inlet of device, is stated second end of the housing till being provided with the through hole of connection fluid passage, through hole
The liquid outlet of device is dripped till opening；Valve element, valve element is arranged in fluid passage, and valve element includes upper, middle and lower, and top is solid
In fluid passage, bottom and middle part are made using elastomeric material, and the outer surface at middle part is provided with groove circumferentially, recessed
The opening of groove is connected with through hole, and bottom compresses fluid passage.
Further, valve element is integrally made using elastomeric material, and the height on top is more than the height of bottom, the opening of groove
It is gradually increased from inside to outside.
Further, the cross section of groove is trapezoidal.
Further, trapezoidal go to the bottom length and the equal diameters of through hole.
Further, the cross section of groove is V-arrangement.
Further, the cross section of fluid passage is circle, and valve element is the cylinder of hollow structure, and valve element is near housing the
The end of one end is enclosed construction, and valve element is provided with opening near the end of second end of the housing.
Further, valve element is arranged to the centroclinal inclined-plane of fluid passage near the end of second end of the housing.
Further, only drip device and also include filter screen, filter screen is arranged in fluid passage and is located at the position in valve element downstream.
Further, in fluid passage and be located at the position in valve element downstream and be provided with the cylinder of hollow, the side wall tool of cylinder
There are the filtering holes forming filter screen, cylinder is enclosed construction near one end of valve element, and the one end away from valve element is provided with opening, cylinder
External diameter be less than fluid passage internal diameter.
Further, in housing outer surface, the position at the second end is provided with least two convex for clamping shower nozzle
Rise.
This utility model is with the difference of prior art, and the device that only drips that this utility model provides includes housing and valve
Core, housing is hollow structure, and the inwall of this hollow structure forms fluid passage, and shell one end is closed, and the other end has connection liquid
The opening of body passage, this opening namely the liquid outlet only dripping device, the side of housing is provided with the through hole of connection fluid passage, and this leads to
The inlet of device is dripped, valve element is arranged in fluid passage, including upper, middle and lower, top is fixed on liquid and is led to till hole
In road, bottom and middle part are made using elastomeric material, and the outer surface at middle part is provided with groove circumferentially, the opening of this groove
It is connected with through hole, bottom compresses fluid passage, liquid enters after fluid passage via the through hole of housing side, is gradually filled with valve
Space between core groove and liquid passage interior wall, when the valve element that liquid increases to make elastomeric material to the pressure of valve element produces bullet
Property deformation and when shrinking, shrink, between back valve core bottom and liquid passage interior wall, gap occur, liquid reaches out via this gap
Liquid mouth；When fluid pressure is less, because valve element bottom is in the state of compression fluid passage, liquid can be stopped in valve element
Outward.
Brief description
Fig. 1 is a kind of profile only dripping device of embodiment that this utility model provides；
Fig. 2 is a kind of axonometric chart only dripping the valve element of device of embodiment that this utility model provides；
Fig. 3 is a kind of front view only dripping the valve element of device of embodiment that this utility model provides；
Fig. 4 is a kind of axonometric chart only dripping the filter screen of device of embodiment that this utility model provides.
Description of reference numerals：
1- housing；2- fluid passage；3- through hole；4- valve element；41- top；In the middle part of 42-；43- bottom；44- groove；45- is oblique
Face；5- filter screen；6- is raised.
Specific embodiment
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.But the use of these exemplary embodiments
Way and purpose are only used for enumerating this utility model, not real protection scope of the present utility model are constituted any type of any
Limit, more non-protection domain of the present utility model is confined to this.
Some nouns of locality are defined in this utility model, in the case of not being specified to the contrary, the orientation that used
Word such as " upper and lower, left and right " refers to that what this utility model provided only drips what device defined under normal usage, and with accompanying drawing in
Shown direction up and down is consistent." inside and outside " refers to inside and outside with respect to each parts profile itself.These nouns of locality be for
Readily appreciate and adopt, thus do not constitute the restriction to this utility model protection domain.
In this utility model, when parts are referred to as " being fixed on " another parts, it can be directly at another
On parts, or can also there are parts placed in the middle.When parts are considered as " connection " another parts, it
Another parts can be directly to or may be simultaneously present parts placed in the middle.When parts are considered as
" being arranged at " another parts, it can be to be set directly on another parts or may be simultaneously present zero placed in the middle
Part.
Firstly the need of explanation, in order to solve above-mentioned technical problem, the only device that this utility model provides can connect
Between the pump housing and shower nozzle of plant protection unmanned plane, only dripping device is in hollow structure, and the inwall of this hollow structure can form the pump housing and spray
Fluid passage between head, is provided with the valve element that elastomeric material is made in fluid passage.Liquid is fixed on the top of valve element
In passage, bottom and middle part are made using elastomeric material, and the outer surface at middle part is provided with groove circumferentially, the opening of this groove
Mouth is connected with through hole, and bottom compresses described fluid passage.When the pump housing works, the medicinal liquid that the pump housing pumps out reaches shell via pencil
The through hole of body side surface, then entered after fluid passage by through hole, it is gradually filled with the space between spool groove and liquid passage interior wall,
Increase with the amount of liquid medicine that the pump housing pumps out, the medicinal liquid in spool groove is continuously increased to the pressure of valve element, and this pressure makes elasticity
In the middle part of the valve element of material and valve element bottom produces elastic deformation and shrinks, and shrinks and goes out between back valve core bottom and liquid passage interior wall
Existing gap, medicinal liquid reaches shower nozzle via this gap and sprays；When the pump housing does not work, even if there being medicinal liquid to be full of spool groove, due to
The pressuring action to fluid passage for the valve element bottom, medicinal liquid is prevented from reaching shower nozzle, thus also will not ooze from shower nozzle, reaches
Arrive the target only dripped, it is to avoid the waste of medicinal liquid.
It should be noted that the device that only drips of the present utility model can apply to fog machine it is also possible to be applied to other needs
The occasion only dripped, to be applied to fog machine and carry out describing of embodiment do not constituted to limit of the present utility model in this utility model
Fixed.When being applied to other and only dripping occasion, when entering the fluid pressure only dripping device and being larger, valve element bottom and liquid passage interior wall
Between gap occurs, smoothly flow out via only dripping the liquid of device；When entering the fluid pressure only dripping device and being less, due to valve element
Bottom is pressed in liquid passage interior wall, and liquid cannot play, by only dripping device, the effect only dripped.
Suitably with reference to shown in Fig. 1, an only device of the basic embodiment that this utility model provides, should only drip device and can be applicable to
In a kind of following plant protection unmanned plane, this plant protection unmanned plane pencil is arranged in horn, and this horn end is provided with motor cabinet, should
Motor cabinet upper end is used for installing motor, and lower end is provided with this and only drips device, and pencil one end connects to the pump housing, and the other end is from horn end
Connect after stretching out and only drip device to this, meanwhile, the end that should only drip device connects shower nozzle.Or, only drip device and may also set up in unmanned plane
Other positions, as long as being connected between the pump housing and shower nozzle.
Specifically, only drip device and include housing 1 and valve element 4, housing 1 is hollow structure, the inwall of this hollow structure forms liquid
Body passage 2, the first end of housing 1 is enclosed construction, and the second end of housing 1 is provided with the opening of connection fluid passage 2, this opening
Till drip the liquid outlet of device, for example connect shower nozzle in this liquid outlet, enter only drip device liquid shower nozzle can be reached by liquid outlet and
Spray.The inlet of device is dripped in the side of housing 1 till being provided with the through hole 3 of connection fluid passage 2, this through hole 3, such as by the pump housing
Liquid outlet connected with this through hole 3 by pencil, in normal spray, medicinal liquid is after the pump housing pumps out, then flows through liquid from pencil
Spray from shower nozzle after passage.
Valve element 4 is set in fluid passage 2, at middle part 42 position of valve element 4, valve element 4 outer surface is provided with along week
To groove 44, valve element is divided into and has the middle part 42 of groove 44, is located at the top 41 of groove more than 44 and is located at by this groove 44
Bottom 43 below 44 for the groove, this top 41 is fixed in fluid passage, and middle part 42 and bottom 43 are made using elastomeric material, under
Portion 43 compresses fluid passage, and the inwall of groove 44 and fluid passage 2 can form the passage of ring valve core 4 circumference, additionally, recessed
The opening of groove 44 is connected with through hole 3, thus, the passage of this ring valve core 4 circumference can be entered via the liquid that through hole 3 enters
Interior.
When plant protection unmanned plane is in non-spray state, the pump housing of unmanned plane does not work, and now enters this ring valve core circumference
Passage in medicinal liquid pressure less, valve element bottom is in compression fluid passage state, due to the presence of this state, medicinal liquid
It is stopped in the passage of above-mentioned ring valve core circumference, will not ooze from shower nozzle.
When plant protection unmanned plane is in spray state, the pump housing startup work of unmanned plane, now enter this ring valve core circumference
Passage in medicinal liquid pressure be gradually increased, valve element shrinks under the effect of the pressure, release valve element compression fluid passage state,
The gap making liquid medicine flow occurs between valve element and fluid passage, medicinal liquid is oozed from shower nozzle by this gap, normal spray.
In an advantageous embodiment, valve element is integrally made using elastomeric material, top, bottom and integral middle molding.
Valve element top is fixed in fluid passage by way of compressing medicinal liquid.Further, as shown in Figures 2 and 3, in order in spray
During be easier to make the gap occurring making liquid medicine flow between valve element and fluid passage it is preferable that the height on top 41 is more than
The height of bottom 43, bottom 43 is less with the contact surface of fluid passage 2, easily releases the state that bottom 43 compresses fluid passage 2,
The opening of groove 44 is gradually increased from inside to outside simultaneously, and such as cross section is trapezoidal dovetail groove or cross section is the V-arrangement of V-arrangement
Groove is so that the inwall of groove 44 forms the stress surface of inclination, when medicinal liquid acts on this stress surface, between valve element and fluid passage
Gap is more readily formed.
It is further preferred that when groove 44 is dovetail groove, trapezoidal go to the bottom length and the equal diameters of through hole 3, that is,
Middle part 43 height and the equal diameters of through hole 3 are so that unobstructed ring valve core 4 circumference that enters of the medicinal liquid that enters from through hole 3
In passage.
In another kind of preferred embodiment, the cross section of fluid passage 2 is circle, and valve element 4 is the cylinder of hollow structure,
The external diameter of valve element 4 top 41 and bottom 43 is all higher than the internal diameter of fluid passage 2, realizes the pressuring action to fluid passage.Meanwhile,
Valve element 4 is enclosed construction near the end of housing 1 first end, and valve element 4 is provided with opening near the end at housing 1 second end.?
In the preferred embodiment, by the setting of hollow structure, valve element is easier to be compressed, thus being easier to make valve during spray
The gap making liquid medicine flow occurs between core and fluid passage, the upper end of valve element is enclosed construction, it can be avoided that medicinal liquid enters
The inside of valve element, the upper end setting opening of valve element is so that the bottom of valve element is easily shunk.
It is further preferred that as shown in Figures 2 and 3, valve element 4 is arranged to fluid passage 2 near the end at housing 1 second end
Centroclinal inclined-plane 45, the contact surface of bottom 43 and fluid passage 2 reduces it is easy to occur between valve element and fluid passage making medicine
The gap that liquor stream is led to.
In another kind of preferred embodiment, as shown in figure 1, only dripping device also include filter screen 51, this filter screen 51 is arranged at liquid
In passage 2, and the position positioned at valve element 4 downstream, medicinal liquid reaches filter screen 51 through the gap between valve element and fluid passage, through filter screen
Reach shower nozzle after 51 filtrations and spray, it is to avoid shower nozzle blocks.
It is further preferred that as shown in figure 1, being provided with hollow in fluid passage 2 and positioned at the position in valve element 4 downstream
Cylinder 5, as shown in figure 4, the side wall of cylinder 5 has the filtering holes forming filter screen 51, the granularity of this filter screen 51 is less than unmanned plane and sprays
It is located at the granularity only dripping any one filter screen of device upstream in medicine system.Cylinder 5 is enclosed construction near one end of valve element 4, far
One end of valve element 4 is provided with opening, the external diameter of cylinder 5 is less than the internal diameter of fluid passage 2, medicinal liquid enters cylinder via filter screen 51
In the middle part of in the of 5, flow out to shower nozzle via the opening of cylinder 5 lower end, realize filtering.
Install for convenience, be provided with least two for clamping shower nozzle in housing 1 outer surface near the position at the second end
Projection 6.
The sequencing of embodiment of above only for ease of description, does not represent the quality of embodiment.
Finally it should be noted that：Embodiment of above is only in order to illustrating the technical solution of the utility model, rather than it is limited
System；Although being described in detail to this utility model with reference to aforementioned embodiments, those of ordinary skill in the art should
Understand：It still can be modified to the technical scheme described in aforementioned each embodiment, or special to wherein portion of techniques
Levy and carry out equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from each reality of this utility model
Apply the spirit and scope of mode technical scheme.
Claims (10)
1. an a kind of only device is it is characterised in that include：
Housing (1), described housing (1) is hollow structure, and the inwall of described hollow structure forms fluid passage (2), described housing
(1) first end is enclosed construction, and the second end of described housing (1) is provided with the opening connecting described fluid passage (2), described
The side of housing (1) is provided with the through hole (3) connecting described fluid passage (2), and described through hole (3) is the described feed liquor only dripping device
Mouthful, the opening at described housing (1) second end is the described liquid outlet only dripping device；
Valve element (4), described valve element (4) is arranged in described fluid passage (2), and described valve element (4) includes top (41), middle part
(42) and bottom (43), described top (41) is fixed in described fluid passage (2), described bottom (43) and described middle part (42)
Made using elastomeric material, the outer surface of described middle part (42) is provided with groove (44) circumferentially, described groove (44)
Opening is connected with described through hole (3), and described bottom (43) compresses described fluid passage (2).
2. the device that only drips according to claim 1 is it is characterised in that described valve element is integrally made using elastomeric material, described
The height on top (41) is more than the height of described bottom (43), and the opening of described groove (44) is gradually increased from inside to outside.
3. an only device according to claim 2 is it is characterised in that the cross section of described groove (44) is trapezoidal.
4. according to claim 3 only drip device it is characterised in that described trapezoidal go to the bottom length and described through hole (3)
Equal diameters.
5. an only device according to claim 2 is it is characterised in that the cross section of described groove (44) is V-arrangement.
6. an only device according to claim 1 is it is characterised in that the cross section of described fluid passage (2) is circle, described
Valve element (4) is the cylinder of hollow structure, and described valve element (4) is enclosed construction near the end of described housing (1) first end, institute
State valve element (4) and the end at described housing (1) second end is provided with opening.
7. an only device according to claim 6 is it is characterised in that described valve element (4) is near described housing (1) second end
End is arranged to the centroclinal inclined-plane (45) of described fluid passage (2).
8. an only device according to claim 1 is it is characterised in that the described device that only drips also includes filter screen (5), described filter screen
(5) it is arranged in described fluid passage (2) and be located at the position in described valve element (4) downstream.
9. an only device according to claim 8 is it is characterised in that in described fluid passage (2) and be located at described valve element (4)
The position in downstream is provided with the cylinder of hollow, and the side wall of described cylinder has the filtering holes forming described filter screen (5), described cylinder
It is enclosed construction near one end of described valve element (4), the one end away from described valve element (4) is provided with opening, outside described cylinder
Footpath is less than the internal diameter of described fluid passage (2).
10. according to claim 1 only drip device it is characterised in that in described housing (1) outer surface near described second end
Position be provided with least two for shower nozzle described in clamping projections (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620999790.3U CN205995695U (en) | 2016-08-30 | 2016-08-30 | Only drip device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620999790.3U CN205995695U (en) | 2016-08-30 | 2016-08-30 | Only drip device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205995695U true CN205995695U (en) | 2017-03-08 |
Family
ID=58196256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620999790.3U Active CN205995695U (en) | 2016-08-30 | 2016-08-30 | Only drip device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205995695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019061829A1 (en) * | 2017-09-29 | 2019-04-04 | 深圳市大疆创新科技有限公司 | Valve structure and pressure spray nozzle device |
-
2016
- 2016-08-30 CN CN201620999790.3U patent/CN205995695U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019061829A1 (en) * | 2017-09-29 | 2019-04-04 | 深圳市大疆创新科技有限公司 | Valve structure and pressure spray nozzle device |
| CN109863335A (en) * | 2017-09-29 | 2019-06-07 | 深圳市大疆创新科技有限公司 | Valve body structure and pressure nozzle device |
| CN109863335B (en) * | 2017-09-29 | 2020-09-11 | 深圳市大疆创新科技有限公司 | Valve body structure and pressure nozzle device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |