CN208313987U - First drop time timing structure for agricultural film drip performance tester - Google Patents
First drop time timing structure for agricultural film drip performance tester Download PDFInfo
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- CN208313987U CN208313987U CN201820933846.4U CN201820933846U CN208313987U CN 208313987 U CN208313987 U CN 208313987U CN 201820933846 U CN201820933846 U CN 201820933846U CN 208313987 U CN208313987 U CN 208313987U
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Abstract
The utility model provides a kind of first drop time timing structure for agricultural film drip performance tester, it includes hammer plate, hammer plate central vertical, which runs through, is equipped with hammer, it is characterized in that, film sample and host housing are equipped with below hammer plate, on the outside of film sample between hammer plate and host housing, host housing is in straight cylindrical, host housing upper and lower ends opening, host housing lower part is equipped with bracket, support vertical is arranged in host housing, one end of bracket is connect with host housing, the bracket other end is equipped with piezoelectricity water droplet sensor, piezoelectricity water droplet sensor is located on the central axes of host housing, stent outer is equipped with timer, timer and piezoelectricity water droplet sensor are electrically connected；Utility model has the advantages that incude simultaneously timing using sensor, detection is automated, and is detached from manually, there is no the problem that identification is unclear or identification is wrong, timing is accurate.
Description
Technical field
The utility model relates to agricultural film field more particularly to based on a kind of first drop time by agricultural film drip performance tester
When structure.
Background technique
For agricultural plastic film drip performance tester, standard GB 4455-2006 " agricultural blow moulded polyethyene is executed
Canopy film ", in the standards such as GB/T 20202-2006 " agricultural use ethane-acetic acid ethyenyl vinegar copolymer (EVA) blowing moulding greenhouse film " " just
Drip the measurement of time " project.
The measuring method of the project is: by sample membrane cover on stream drop tester, while starting stopwatch, observes table in sample
The case where showing drop cohesion, and record and just drip the time, it is indicated with the second (s).
The project is that artificial observation is just dripped, and records the time, therefore there are the following problems: 1, stream drop instrument internal light is dark, and has
A large amount of vapor, are not easy to observe the condensation of water droplet and drippage through sample film when observing, 2, just the drop time is longer, and when dripping
Between it is very short, easily miss and just drip the time, 3, observer need to focus observation for a long time, be also easy to produce fatigue, 4, standard requirements stopwatches essence
Really to 0.1s, but the manual record time is more rough, generates data result vulnerable to personal reaction time difference and movement speed
Difference.
Utility model content
The purpose of the utility model is to provide a kind of first drop time timing structures for agricultural film drip performance tester.
To achieve the goals above, the technical solution of the utility model is:
For the first drop time timing structure of agricultural film drip performance tester, it includes hammer plate, in the hammer plate
Centre is extended vertically through equipped with hammer, and the lower end of the hammer protrudes from the lower end setting of hammer plate, which is characterized in that the hammer plate
Lower section be equipped with film sample and host housing, the upper end of host housing, the hammer are covered on the downside of the film sample
Lower end attaching film sample upper surface center setting, the host housing be in straight cylindrical, the host housing up and down
Both ends open, the lower part of the host housing are equipped with bracket, and the support vertical is arranged in the inner wall of host housing, the bracket
One end is fixedly connected with the inner wall of host housing, and the other end of the bracket is equipped with piezoelectricity water droplet sensor, the piezoelectricity water droplet
Sensor and hammer are respectively positioned on the central axes of host housing, and the outside of the bracket is equipped with timer, the timer and pressure
Electric water droplet sensor electrical connection.
The upper end of the piezoelectricity water droplet sensor and the spacing of hammer bottom are 10cm ~ 15cm, the piezoelectricity water droplet sensing
The horizontal cross-section diameter of device is 3mm ~ 5mm.
Utility model has the advantages that incude simultaneously timing using sensor, detection automation is detached from manually, no
There is a problem of that identification is unclear or identify mistake, timing is accurate.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Appended drawing reference:
1 hammer plate
2 film samples
3 host housings
4 hammers
5 brackets
6 piezoelectricity water droplet sensors
7 timers.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
The utility model discloses a kind of first drop time timing structures for agricultural film drip performance tester, such as Fig. 1 institute
Show, it includes hammer plate 1, and the central vertical of the hammer plate 1, which runs through, is equipped with hammer 4, and the lower end of the hammer 4 protrudes from hammer
Plate 1 is arranged, which is characterized in that the lower section of the hammer plate 1 is equipped with film sample 2 and host housing 3, the film sample 2
Downside is covered in 3 upper end of host housing, the center setting of 2 upper surface of lower end attaching film sample of the hammer 4, the hammer
Plate 1 is clamped by self weight and ambient pressure and host housing 3, and the outer rim of fixed film sample 2, the host housing 3 is in straight
Cylindrical shape, the upper and lower ends opening of the host housing 3, the lower part of the host housing 3 are equipped with bracket 5, and the bracket 5 is vertical
Be arranged in the inner wall of host housing 3, one end of the bracket 5 is fixedly connected with the inner wall of host housing 3, the bracket 5 it is another
End is equipped with piezoelectricity water droplet sensor 6, and the piezoelectricity water droplet sensor 6 is located on the central axes of host housing 3, which passes
Sensor 6 and hammer 4 are located on a straight line, and the outside of the bracket 5 is equipped with timer 7, and the timer 7 is sensed with piezoelectricity water droplet
Device 6 is electrically connected.
The piezoelectric type water droplet sensor 6 is between underface 10cm ~ 15cm of hammer 4, the water of piezoelectricity water droplet sensor 6
Planar cross-sectional diameter is 3mm ~ 5mm, and the water droplet of 4 position of hammer is vertically dripped on the sensitive face of 6 upper end of piezoelectricity water droplet sensor,
The inside of the bracket 5 can wear data line, and timer 7 is the timer that can be accurate to 0.1s.
User covers film sample 2 on host housing 3, starts timer 7, and 7 timing of timer starts, when water droplet drips
When dropping down on piezoelectric type water droplet sensor 6, the sensitive face of water droplet impingement piezoelectric type water droplet sensor 6, piezoelectricity water droplet sensor 6 is sent out
Electric signal out, electric signal are sent to the timer 7 outside bracket 5 through the electric wire in bracket 5, and timer 7 shows the touching of the electric signal
The time is sent out, which is the first drop time of film sample 2.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (2)
1. being used for the first drop time timing structure of agricultural film drip performance tester, it includes hammer plate, the center of the hammer plate
It extends vertically through and is equipped with hammer, the lower end of the hammer protrudes from the lower end setting of hammer plate, which is characterized in that the hammer plate
Lower section is equipped with film sample and host housing, and the upper end of host housing is covered on the downside of the film sample, the hammer
The center setting of lower end attaching film sample upper surface, the host housing are in straight cylindrical, and up and down the two of the host housing
End opening, the lower part of the host housing are equipped with bracket, and the support vertical is arranged in the inner wall of host housing, and the one of the bracket
End is fixedly connected with the inner wall of host housing, and the other end of the bracket is equipped with piezoelectricity water droplet sensor, and the piezoelectricity water droplet passes
Sensor and hammer are respectively positioned on the central axes of host housing, and the outside of the bracket is equipped with timer, the timer and piezoelectricity
Water droplet sensor electrical connection.
2. the first drop time timing structure according to claim 1 for agricultural film drip performance tester, which is characterized in that
The upper end of the piezoelectricity water droplet sensor and the spacing of hammer bottom are 10cm ~ 15cm, the level of the piezoelectricity water droplet sensor
Diameter of section is 3mm ~ 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820933846.4U CN208313987U (en) | 2018-06-15 | 2018-06-15 | First drop time timing structure for agricultural film drip performance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820933846.4U CN208313987U (en) | 2018-06-15 | 2018-06-15 | First drop time timing structure for agricultural film drip performance tester |
Publications (1)
| Publication Number | Publication Date |
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| CN208313987U true CN208313987U (en) | 2019-01-01 |
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ID=64708385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820933846.4U Active CN208313987U (en) | 2018-06-15 | 2018-06-15 | First drop time timing structure for agricultural film drip performance tester |
Country Status (1)
| Country | Link |
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| CN (1) | CN208313987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114120772A (en) * | 2021-12-09 | 2022-03-01 | 万广通 | Gravitational acceleration demonstration device |
-
2018
- 2018-06-15 CN CN201820933846.4U patent/CN208313987U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114120772A (en) * | 2021-12-09 | 2022-03-01 | 万广通 | Gravitational acceleration demonstration device |
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