CN208024884U - Accurate sprinkling control device - Google Patents
Accurate sprinkling control device Download PDFInfo
- Publication number
- CN208024884U CN208024884U CN201820300321.7U CN201820300321U CN208024884U CN 208024884 U CN208024884 U CN 208024884U CN 201820300321 U CN201820300321 U CN 201820300321U CN 208024884 U CN208024884 U CN 208024884U
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- hole
- spool
- sealing ring
- control device
- valve rod
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- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000010992 reflux Methods 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 48
- 238000009434 installation Methods 0.000 claims description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 241000196324 Embryophyta Species 0.000 description 7
- 239000002917 insecticide Substances 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 241000607479 Yersinia pestis Species 0.000 description 4
- 235000013339 cereals Nutrition 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000575 pesticide Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 240000000111 Saccharum officinarum Species 0.000 description 1
- 235000007201 Saccharum officinarum Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Catching Or Destruction (AREA)
Abstract
The utility model discloses a kind of accurate sprinkling control devices, the accurate sprinkling control device includes shell, spherical spool, valve rod, actuator, pressure sensor and control piece, spool is installed in rotation in spool chamber, the both ends in the first hole are connected to inlet and spool chamber respectively, the both ends in the second hole are connected to refluxing opening and spool chamber respectively, valve rod is installed in rotation in third hole, one end of valve rod is connect with spool, the other end of valve rod is sequentially connected with actuator, the both ends in the 4th hole are connected to the first hole and liquid outlet respectively, the fluid pressure in the first hole that pressure sensor is able to detect that, control piece can control the rotation of actuator driving stem, drive valve core rotation to disconnect or be connected to the first hole and the second hole.Accurate sprinkling control device provided by the utility model can preferably realize the accurate sprinkling of unmanned plane.
Description
Technical field
The utility model is related to plant protection drone technical field more particularly to a kind of accurate sprinklings for plant protection drone
Control device.
Background technology
In general, grain security is to ensure the basis of economic security, national security.In process of crop growth, it prevents
Pest and disease damage is the key means for ensureing crop and well growing, increases in grain production being promoted to increase income, and directly affects grain and food safety.It is planting
Guarantor field accelerates to promote the Mechanization Level of dispenser equipment and raising pesticide application technology, reinforces the prevention and control capability to pest and disease damage, is to protect
The inevitable requirement for hindering grain security, agricultural being promoted to stablize volume increase.Accuracy pesticide applying technology is to reduce the effective means of pesticide residue.Ground
Face spraying equipment can be accurately controlled pesticide application amount, but for rice, rape, sugarcane, seeding corn and other crops, ground spraying machine
Have into ground operation difficulty, so the disease pest and weed prevention for the above crop is still can not neglecting for influence China's production estimation
Depending on problem.
Agricultural plant protection unmanned plane is exactly to carry out quantitative spray to crop using UAV flight's chemical spraying device, is overcome artificial
The problem of operating efficiency is low, ground is sprayed equipment into ground operation.With the continuous development of unmanned air vehicle technique, plant protection drone has become
To prevent the main means of pest and disease damage, development prospect is paid much attention to by agricultural plant protection field.
It is this field letter technical problem to be solved however, the accurate sprinkling of plant protection drone how is better achieved.
Utility model content
The purpose of this utility model is to provide a kind of accurate sprinkling control device, can preferably realize the accurate of unmanned plane
Sprinkling.
To achieve the goals above, the utility model provides a kind of accurate sprinkling control device, the accurate sprinkling control
Device processed includes shell, spherical spool, valve rod, actuator, pressure sensor and control piece, and feed liquor is provided on the shell
Mouth, liquid outlet and refluxing opening, are provided with the first hole, the second hole, third hole, the 4th hole and spool chamber, the spool in shell
On be provided with through-hole, the spool is installed in rotation in the spool chamber, the both ends in first hole respectively with it is described into
Liquid mouth is connected to spool chamber, and the both ends in second hole are connected to the refluxing opening and the spool chamber respectively, the third hole
It is connected to the spool chamber, the valve rod is installed in rotation in the third hole, one end of the valve rod and the spool
Connection, the other end of the valve rod and the actuator are sequentially connected, the both ends in the 4th hole respectively with first hole and
The liquid outlet connection, the fluid pressure in first hole that the pressure sensor is able to detect that, the control piece energy
It enough controls the actuator and drives the valve rod rotation, drive the valve core rotation to disconnect or be connected to first hole and second
Hole.
Preferably, the actuator is steering engine, and the steering engine is fixedly mounted on the housing, the swing arm of the steering engine with
One end of first drive rod is hinged, and the other end of first drive rod and one end of second drive rod are hinged, and described the
The other end of two drive rods is fixedly connected with the valve rod, and second drive rod is perpendicular to the valve rod, the swing arm and institute
It is parallel to state the second drive rod.
Preferably, the upper surface of the shell is installed with mounting plate, and the mounting plate is upper perpendicular to the shell
End face, is installed with the first L-shaped installing plate and the second L-shaped installing plate on the side of the mounting plate, and the two of the steering engine
Fixed plate is installed on a side, the steering engine is fixed on first L-shaped installing plate by fixed plate and the second L-shaped is pacified
In loading board.
Preferably, the shell includes the end cap of ontology and installation on the body, and second hole is opened in described
On end cap, the refluxing opening is located at the outer end of the end cap, and first hole is located on the ontology, is offered on the ontology
Cylindrical hole, the end cap close the cylindrical hole and form the spool chamber, and first hole, the second hole and spool chamber are coaxial
Setting, is equipped with the first sealing ring and the second sealing ring in the spool chamber, the spool be located at first sealing ring with
Between second sealing ring, the inner face of first sealing ring and the inner face of the second sealing ring are to be matched with the spool
Spherical surface, the spool can rotate on first sealing ring and the second sealing ring.
Preferably, first sealing ring and the second sealing ring are located at the spool chamber and first hole and second
Two ends of hole connection, first sealing ring and the second sealing ring are coaxially disposed with the spool chamber.
Preferably, first sealing ring and the second sealing ring are made of polytetrafluoroethylene (PTFE).
Preferably, the end cap is threadedly coupled on the body.
Preferably, the mounting groove of rectangle, the cross of one end that the valve rod is connect with the spool are offered on the spool
Cross sectional shape is rectangle, and the valve rod is connected in the mounting groove.
Preferably, the mounting groove is mutually perpendicular to the through-hole.
Preferably, the outer surface joint of the through-hole on the spool and spool is provided with chamfering.
The utility model and the prior art the difference is that, accurate sprinkling control device provided by the utility model exists
The first hole, the second hole and the third hole that setting be connected to by spool chamber in shell, and install in spool chamber can connect or
The spool in the first hole and the second hole is disconnected, spool controls actuator to drive by control piece.When the accurate sprinkling control device
When in use, the liquid outlet of inlet and pump is connected by pipeline, liquid outlet is connected to the inlet of nozzle by pipeline
On, while refluxing opening being connected in solution container by pipeline, when that need not spray insecticide equal liquid, control piece control is driven
Moving part band ovable valve stem rotates so that the through-hole of spool connects the first hole and the second hole, and the first hole is connected to the second hole at this time, pumps work
Make the liquid that exports via the first hole, the second hole, into solution container, forming cycle, due to liquid the first hole, the second hole and
It is recycled between container solution, the fluid pressure in the 4th hole is smaller, and nozzle will not be opened；When needs spray insecticide equal liquid,
Control piece controls actuator band ovable valve stem and rotates so that the through-hole of spool is not connected to the first hole and the second hole, the first hole and second
Hole disconnects, and fluid pressure increases in the first hole at this time so that the nozzle being connect with the 4th hole is opened, and liquid is through the first hole, the 4th
Hole and pipeline enter nozzle, and as liquid is ejected, fluid pressure declines in pressure sensor monitoring to the first hole, control piece root
Accelerate output according to the signal control pump of pressure sensor feedback so that the fluid pressure in the first hole is kept constant, and ensures to pass through
The fluid pressure that 4th hole is input to nozzle is constant, so that it is guaranteed that nozzle is sprayed insecticide according to the fountain height of setting always waits liquid
Body.Therefore, accurate sprinkling control device provided by the utility model can preferably realize the accurate sprinkling of unmanned plane.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the accurate sprinkling control device of embodiment provided by the utility model；
Fig. 2 is the front view of accurate sprinkling control device shown in FIG. 1；
Fig. 3 is the sectional view of accurate sprinkling control device shown in FIG. 1；
Fig. 4 is the structural schematic diagram of accurate sprinkling control device shown in FIG. 1, and the structures such as mounting plate are shown；
Fig. 5 is spool and valve rod assembly structure diagram；
Fig. 6 is the structural schematic diagram of spool；
Reference sign：
1- shells；11- ontologies；12- end caps；2- spools；21- through-holes；22- mounting grooves；3- valve rods；4- actuators；41- is put
Arm；The first drive rods of 42-；The second drive rods of 43-；5- pressure sensors；The first holes 61-；The second holes 62-；63- thirds hole；64-
4th hole；65- spool chambers；66- inlets；67- refluxing openings；68- liquid outlets；71- installs support plate；72- fixed plates；The first L of 73-
Shape mounting plate；The second L-shaped installing plates of 74-；The first sealing rings of 81-；The second sealing rings of 82-.
Specific implementation mode
The utility model is further illustrated with embodiment below in conjunction with the accompanying drawings.But the use of these exemplary embodiments
Way and purpose are only used for enumerating the utility model, are not constituted to the real protection scope of the utility model any type of any
It limits, it is more non-that the scope of protection of the utility model is confined to this.
Some nouns of locality are defined in the present invention, in the case where not being specified to the contrary, used orientation
Word refers to accurate sprinkling control device provided by the utility model defines under normal usage such as " upper and lower, left and right ",
And it is consistent with attached direction up and down shown in Fig. 2." inside and outside " refers to relative to inside and outside each parts profile itself.This
A little nouns of locality use for the ease of understanding, because without constituting the limitation to scope of protection of the utility model.
In the present invention, when parts are referred to as " fixing " on another parts, it can be directly anchored to
On another parts, or there may also be parts placed in the middle.When a parts be considered as " connection " another zero
Component, it can be directly to another parts or may be simultaneously present parts placed in the middle.
Shown in appropriate reference chart 1- Fig. 3, the accurate sprinkling control device packet of basic embodiment provided by the utility model
Include shell 1, spherical spool 2, valve rod 3, actuator 4, pressure sensor 5 and control piece.
Inlet 66, refluxing opening 67 and liquid outlet 68 are provided on the shell 1, as shown in figure 3, the inlet 66 is set
It sets in the left side of shell 1, the refluxing opening 67 is arranged on the right side of shell 1, and the liquid outlet 68 is arranged in the downside of shell 1.
The first hole 61, the second hole 62, third hole 63, the 4th hole 64 and spool chamber 65, the spool are provided in shell 1
Chamber 65 is located in the shell 1, and the left part in the shell is arranged in first hole 61, and second hole is arranged in shell 1
Right part, the third hole 63 are arranged on the top of shell 1, and the spool chamber 65 is located at first hole 61, the second hole 62 and
Between three holes 63.
Shown in appropriate reference chart 5, Fig. 6, through-hole 21 is provided on the spool 2, the spool 2 is installed in rotation on institute
It states in spool chamber 65, the both ends in first hole 61 are connected to the inlet 66 and spool chamber 65 respectively, second hole 62
Both ends be connected to respectively with the refluxing opening 67 and the spool chamber 65, the third hole 63 is connected to the spool chamber 65, institute
It states valve rod 3 to be installed in rotation in the third hole 63, one end of the valve rod 3 is connect with the spool 2, the valve rod 3
The other end and the actuator 4 be sequentially connected.
The both ends in the 4th hole 64 are connected to first hole 61 and the liquid outlet 68 respectively, the pressure sensor
Fluid pressure in 5 first holes 61 being able to detect that, the control piece can control the actuator 4 and drive the valve
Bar 3 rotates, and drives the rotation of the spool 2 to disconnect or be connected to first hole, 61 and second hole 62.
The accurate sprinkling control device that above-mentioned basic embodiment provides when in use, first by pipeline by inlet 66
It connect with the liquid outlet of pump, liquid outlet 68 is connected on the inlet of nozzle by pipeline, while by pipeline by refluxing opening
67 are connected in solution container (such as medicine-chest), and the inlet of pump is by piping connection on solution container.It takes off directly in unmanned plane
To during flying to above operation area, it need not spray insecticide wait liquid at this time, control piece controls actuator 4 and revolved with ovable valve stem
Turn so that the through-hole 21 of spool 2 connects the first hole 61 and the second hole 62, and the first hole 61 is connected to the (state with the second hole 62 at this time
Could be provided as original state), the liquid of pump work output is via the first hole 61, the second hole 62, solution container forming cycle (pump
Can start when close to operation area or arrival operation area, to save electric energy), since liquid is in the first hole 61,62 and of the second hole
It is recycled between container solution, the fluid pressure in the 4th hole 64 is smaller, and nozzle will not be opened；When on unmanned plane during flying to operation area
Side, need to spray insecticide equal liquid when, control piece controls actuator 4 and is rotated with ovable valve stem 3, and spool 2 rotates with so that spool
2 through-hole 21 is not connected to the first hole 61 and the second hole 62, and the first hole 61 and the second hole 62 disconnect, at this time the first hole 61, the 4th hole
Fluid pressure increases in 64 so that the nozzle that connect with the 4th hole 64 opening, liquid through the first hole 61, the 4th hole 64 and pipeline into
Enter nozzle, as liquid is ejected, pressure sensor 5 monitors that fluid pressure declines in the first hole 61, and control piece is according to pressure
The signal control pump that sensor 5 is fed back accelerates rotation so that the fluid pressure in the first hole 61 is kept constant, to ensure to pass through
The fluid pressure that 4th hole 64 is input to nozzle is constant, therefore nozzle can be kept to spray insecticide always according to the fountain height of setting
Equal liquid, realize the accurate sprinkling of unmanned plane.
In the present invention, existing various can drive may be used in the actuator 4 of the accurate sprinkling control device
The structure that ovable valve stem 3 rotates, such as stepper motor etc..In one preferred embodiment, as shown in Figure 1, the actuator 4
For steering engine, the steering engine is fixedly mounted on the shell 1, one end hinge of the swing arm 41 of the steering engine and the first drive rod 42
Connect, one end of the other end of first drive rod 42 and second drive rod 43 is hinged, second drive rod 43 it is another
One end is fixedly connected with the valve rod 3, and the axis that second drive rod 43 can surround the valve rod 3 rotates, and described second
For drive rod 43 perpendicular to the valve rod 3, the swing arm 41 is parallel with second drive rod 43.
The wherein described swing arm 41, the first drive rod 42, the second drive rod 43 form parallelogram linkage, work as swing arm
41 under the output shaft of steering engine drives when rotating, and the valve rod 3 can also do the rotation of equal angular therewith.Therefore, pass through setting
Above structure connects steering engine and valve rod 3, and the reasonable distribution of 3 position of steering engine and valve rod may be implemented, accurate to reduce
The volume of sprinkling control device, and improve its operation stability.
As shown in figure 4, in a preferred embodiment of the utility model, the upper surface of the shell 1 is installed with
Support plate 71 is installed, the installation support plate 71 is located at the rear portion of shell 1, peace perpendicular to the upper surface of the shell 1, installation support plate 71
Dress support plate 71 can be integrally formed with shell 1.It is installed with the first L-shaped installing plate 73 on the side of the installation support plate 71
With the second L-shaped installing plate 74, the first L-shaped installing plate 73 and the second L-shaped installing plate 74 can be solid by bolt and installation support plate 71
It is fixed to connect, it is installed with fixed plate 72 on two sides of the steering engine, when the first L-shaped installing plate 73 and the second L-shaped are installed
When plate 74 is mounted on installation support plate 71, the steering engine is fixed on first L-shaped installing plate, 73 and the 2nd L by fixed plate 72
On shape mounting plate 74.It is fixed simultaneously since the first L-shaped installing plate 73 and the second L-shaped installing plate 74 are located at the left and right sides of steering engine
Plate 72 is pressed in L-shaped installing plate, so as to realize the secured connection of steering engine and shell 1.
As shown in figure 4, the shell 1 includes ontology 11 and the end cap 12 on the ontology 11, the ontology 11
Positioned at the left side of the end cap 12.Second hole 62 is opened on the end cap 12, and the refluxing opening 67 is located at the end cap
12 outer end, i.e. refluxing opening 67 are located at the right end of end cap 12.First hole 61 is located on the ontology, is opened up on the ontology
There are cylindrical hole, the end cap 12 to close the cylindrical hole and form the spool chamber 65, first hole 61,62 and of the second hole
Spool chamber 65 is coaxially disposed, i.e., described first hole 61 and spool chamber 65 form a stepped hole on ontology 11.
First sealing ring 81 and the second sealing ring 82 are installed in the spool chamber 65.The spool 2 is located at described the
Between one sealing ring 81 and the second sealing ring 82, as shown in figure 5, the inner face of first sealing ring 81 and the second sealing ring 82
Inner face be that can be sealed in first sealing ring 81 and second with 2 matched spherical surface of the spool, the spool 2
It is rotated on ring 82.
As shown in figure 3, first sealing ring, 81 and second sealing ring 82 is located at the spool chamber 65 and described the
Two ends in one hole 61 and the connection of the second hole 62, first sealing ring 81 are located at the left end of the spool chamber 65, i.e., fixed
In the left end of the cylindrical hole of ontology 11, the second sealing ring 82 is located at the right end of spool chamber 65, you can be fixed on end cap 12
On left side.First sealing ring, 81 and second sealing ring 82 is coaxially disposed with the spool chamber 65.First sealing ring
81 and second sealing ring 82 using polytetrafluoroethylene (PTFE) (F-4) make.
In the present invention, by the way that the first sealing ring 81 and the second sealing ring 82 is arranged, it is ensured that the sealing of spool
Effect, while can ensure the steadily rotation of spool 2.
Preferably, the end cap 12 is threaded on the ontology 11.By by end cap 12 by screw thread removably
It is connected on ontology 11, the maintenance of accurate sprinkling control device can be facilitated.As described in Figure 2, the peripheral edge portion of the end cap 12
With flange, the end cap 12 is fixedly connected by the bolt on flange with ontology 11 simultaneously, i.e. the screw thread first of the end cap 12
After being connected on ontology 11, then by bolt by end cap 12 and 11 2 fixations of ontology, to improve accurate sprinkling control device
Overall stability.
In the present invention, the valve rod 3 and spool 2 can link together by various modes, such as bonding etc..
It is in a preferred embodiment, as shown in Figure 5, Figure 6, described in order to further increase the stability of quasi- sprinkling control device
The mounting groove 22 of rectangle is offered on spool 2, the cross-sectional shape of one end that the valve rod 3 is connect with the spool 2 is rectangle,
The valve rod 3 is connected in the mounting groove 22.
Since the lower end of valve rod 3 is by being connected in mounting groove 22, when valve rod 3 drives valve core rotation, it is ensured that its
The stability of rotation.Importantly, valve rod 3 and spool 2 are connected by way of above-mentioned clamping, it can conveniently precisely sprinkling control
The assembling of device processed.Further, the mounting groove 22 is mutually perpendicular to the through-hole 21.
As shown in fig. 6, in the present invention, through-hole 21 and the outer surface joint of spool 2 on the spool 2 are set
It is equipped with chamfering.By forming chamfering on spool 2, positioning can be scratched to avoid the burr formed when spool 2 processes through-hole 21
Ring or spool chamber.
The sequencing of embodiment of above is not only for ease of description, represent the quality of embodiment.
Finally it should be noted that：Embodiment of above is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model is described in detail with reference to aforementioned embodiments, those skilled in the art should
Understand：It can still modify to the technical solution recorded in aforementioned each embodiment, or special to which part technology
Sign carries out equivalent replacement；And these modifications or replacements, each reality of the utility model that it does not separate the essence of the corresponding technical solution
Apply the spirit and scope of mode technical solution.
Claims (10)
1. a kind of accurate sprinkling control device, which is characterized in that the accurate sprinkling control device includes shell (1), spherical shape
Spool (2), valve rod (3), actuator (4), pressure sensor (5) and control piece are provided with inlet on the shell (1)
(66), refluxing opening (67) and liquid outlet (68) are provided with the first hole (61), the second hole (62), third hole in shell (1)
(63), the 4th hole (64) and spool chamber (65) are provided with through-hole (21) on the spool (2), and the spool (2) is rotationally pacified
In the spool chamber (65), the both ends of first hole (61) connect with the inlet (66) and spool chamber (65) respectively
Logical, the both ends of second hole (62) are connected to the refluxing opening (67) and the spool chamber (65) respectively, the third hole
(63) it is connected to the spool chamber (65), the valve rod (3) is installed in rotation in the third hole (63), the valve rod
(3) one end is connect with the spool (2), and the other end of the valve rod (3) is sequentially connected with the actuator (4), and described the
The both ends in four holes (64) are connected to first hole (61) and the liquid outlet (68) respectively, and the pressure sensor (5) can
The fluid pressure in first hole (61) detected, the control piece can control the actuator (4) and drive the valve
Bar (3) rotates, and drives the spool (2) rotation to disconnect or be connected to first hole (61) and the second hole (62).
2. accurate sprinkling control device according to claim 1, which is characterized in that the actuator (4) is steering engine, described
Steering engine is fixedly mounted on the shell (1), and the swing arm (41) of the steering engine is hinged with one end of the first drive rod (42), described
The other end of first drive rod (42) and one end of the second drive rod (43) are hinged, the other end of second drive rod (43) with
The valve rod (3) is fixedly connected, and second drive rod (43) is perpendicular to the valve rod (3), the swing arm (41) and described the
Two drive rods (43) are parallel.
3. accurate sprinkling control device according to claim 2, which is characterized in that the upper surface of the shell (1) is fixed
Installation support plate (71) is installed, the installation support plate (71) is perpendicular to the upper surface of the shell (1), in the installation support plate
(71) the first L-shaped installing plate (73) and the second L-shaped installing plate (74), two sides of the steering engine are installed on side
On be installed with fixed plate (72), the steering engine is fixed on first L-shaped installing plate (73) and by fixed plate (72)
In two L-shaped installing plates (74).
4. accurate sprinkling control device according to claim 1, which is characterized in that the shell (1) includes ontology (11)
With the end cap (12) on the ontology (11), second hole (62) is opened on the end cap (12), the reflux
Mouth (67) is located at the outer end of the end cap (12), and first hole (61) is located on the ontology, and circle is offered on the ontology
Cylindrical hole, the end cap (12) close the cylindrical hole and form the spool chamber (65), first hole (61), the second hole
(62) it is coaxially disposed with spool chamber (65), the first sealing ring (81) and the second sealing ring is installed in the spool chamber (65)
(82), the spool (2) is between first sealing ring (81) and the second sealing ring (82), first sealing ring (81)
Inner face and the second sealing ring (82) inner face be with the spool (2) matched spherical surface, the spool (2) can
It is rotated on first sealing ring (81) and the second sealing ring (82).
5. accurate sprinkling control device according to claim 4, which is characterized in that first sealing ring (81) and second
Sealing ring (82) is located at two ends that the spool chamber (65) is connect with first hole (61) and the second hole (62), institute
The first sealing ring (81) and the second sealing ring (82) is stated to be coaxially disposed with the spool chamber (65).
6. accurate sprinkling control device according to claim 4, which is characterized in that first sealing ring (81) and second
Sealing ring (82) is made of polytetrafluoroethylene (PTFE).
7. accurate sprinkling control device according to claim 4, which is characterized in that the end cap (12) is threaded in institute
It states on ontology (11).
8. accurate sprinkling control device according to claim 1, which is characterized in that offer rectangle on the spool (2)
Mounting groove (22), the cross-sectional shape of one end that the valve rod (3) connect with the spool (2) is rectangle, the valve rod (3)
It is connected in the mounting groove (22).
9. accurate sprinkling control device according to claim 8, which is characterized in that the mounting groove (22) and the through-hole
(21) it is mutually perpendicular to.
10. accurate sprinkling control device according to claim 4, which is characterized in that the through-hole (21) on the spool (2)
The outer surface joint of spool (2) is provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820300321.7U CN208024884U (en) | 2018-03-05 | 2018-03-05 | Accurate sprinkling control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820300321.7U CN208024884U (en) | 2018-03-05 | 2018-03-05 | Accurate sprinkling control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208024884U true CN208024884U (en) | 2018-10-30 |
Family
ID=63904816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820300321.7U Active CN208024884U (en) | 2018-03-05 | 2018-03-05 | Accurate sprinkling control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208024884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917813A (en) * | 2019-04-19 | 2019-06-21 | 成都蔚来空间科技有限公司 | Unmanned plane autonomous flight three-dimensional scenic display methods and terminal |
-
2018
- 2018-03-05 CN CN201820300321.7U patent/CN208024884U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917813A (en) * | 2019-04-19 | 2019-06-21 | 成都蔚来空间科技有限公司 | Unmanned plane autonomous flight three-dimensional scenic display methods and terminal |
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