CN108709823B - Withered and fallen object immersion test device - Google Patents
Withered and fallen object immersion test device Download PDFInfo
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- CN108709823B CN108709823B CN201810726340.0A CN201810726340A CN108709823B CN 108709823 B CN108709823 B CN 108709823B CN 201810726340 A CN201810726340 A CN 201810726340A CN 108709823 B CN108709823 B CN 108709823B
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
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Abstract
The invention discloses a litter immersion test device which comprises a locking mechanism, a box body with an opening at the top end and an upper cover with an opening at the bottom end, wherein the top end of the box body is detachably connected with the bottom end of the upper cover, and the locking mechanism is fixedly connected with the box body and the upper cover respectively; the bottom end surface of the box body is provided with a first stainless steel screen, each side of the outside of the box body is provided with a movable part of the locking mechanism, and the front side and the rear side of the outside of the box body are provided with angle-adjustable lifting rings; the top end surface of the upper cover is a second stainless steel screen, each side of the outer part of the upper cover is provided with a fixed part of the locking mechanism, and the diameter of the inner wall of the upper cover is the same as that of the outer wall of the box body; the movable part and the fixed part of the locking mechanism are mutually matched and detachably connected; the contact part of the box body and the upper cover is provided with a rubber sealing strip. The invention solves the problems of high labor input, large workload of workers and low reliability of the immersion test caused by the loss of the litter sample and insufficient immersion and draining in the prior art.
Description
Technical Field
The invention belongs to the field of litter soaking tests, and particularly relates to a litter soaking test device.
Background
The litter is a general name of all organic substances after biological components in an ecological system die, is an important component of a land ecological system, and is also an important influence factor of a forest hydrological process. Plays an irreplaceable role in ecology. The litter has strong capacity of intercepting rainfall, the water source conservation function of the forest area is increased, the surface roughness of the forest area is changed, and the slope production confluence process of the forest area is influenced; meanwhile, the litter releases nutrient elements to the soil through decomposition, is an important source of nutrient substances needed by vegetation growth maintenance, is also a main way for returning the nutrient substances to the plants, and flows out of the soilCO2Plays a very important role in the global terrestrial carbon cycle; research on the water holding capacity of different litter is a research hotspot of hydrologists, most scholars obtain water holding process curves of different litter through a soaking test, but a set of standard soaking test device is not designed, so that the test result has large uncertainty.
The prior art has the following problems:
(1) in the existing soaking test, a litter sample is generally soaked and collected manually, so that the labor investment is large and the workload of workers is large;
(2) due to manual operation, the problems of loss of a litter sample and insufficient soaking and draining are easily caused, and the reliability of a soaking test is low.
Disclosure of Invention
Aiming at the defects in the prior art, the litter immersion test device provided by the invention has the advantages that the practicability is high, the labor input is saved, the workload is reduced, and the litter is sufficiently immersed and drained, so that the loss of the litter sample is prevented, the reliability of the immersion test is improved, and the problems of high labor input, large workload of workers, and low reliability of the immersion test caused by the loss of the litter sample, insufficient immersion and draining in the prior art are solved.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
a litter immersion test device comprises a locking mechanism, a box body with an opening at the top end and an upper cover with an opening at the bottom end, wherein the top end of the box body is detachably connected with the bottom end of the upper cover, and the locking mechanism is fixedly connected with the box body and the upper cover respectively;
the bottom end surface of the box body is provided with a first stainless steel screen, each side surface outside the box body is provided with a movable part of the locking mechanism, and two opposite side surfaces outside the box body are provided with angle-adjustable lifting rings;
the top end surface of the upper cover is a second stainless steel screen, each side surface of the outer part of the upper cover is provided with a fixed part of the locking mechanism, and the size of the inner wall of the upper cover is the same as that of the outer wall of the box body;
the movable part and the fixed part of the locking mechanism are mutually matched; the contact part of the box body and the upper cover is provided with a rubber sealing strip which is fixedly connected with the upper part of the outer wall of the box body.
The beneficial effect of this scheme does:
(1) the scheme firstly provides the litter immersion test device, so that the litter is prevented from being artificially subjected to immersion test, the labor input is saved, and the workload is reduced;
(2) the box body and the upper cover prevent loss of the litter samples, and the lock catch mechanism locks the box body and the upper cover, so that loss of the litter samples is further prevented, and the reliability of the water immersion test is improved;
(3) the first stainless steel screen and the second stainless steel screen enable the litter sample to be in full contact with water, so that full immersion is guaranteed, water flows out of the first stainless steel screen during draining, full draining is guaranteed, and reliability of a water immersion test is further improved;
(4) the lifting ring facilitates the carrying of the device and improves the practicability of the device.
Furthermore, the end face of the box body and the end face of the upper cover are both square.
Further, the bottom face of the outside of box is provided with the rubber pad foot, and the rubber pad foot symmetry sets up the edge at the bottom face.
The beneficial effects of the above further scheme are:
the rubber foot pad enables a gap to be formed between the bottom end face of the litter immersion test device and the flat ground, water outflow is facilitated, sufficient draining is further guaranteed, and reliability of an immersion test is improved.
Furthermore, the contact part of the lifting ring and the box body is correspondingly provided with a screw hole, and the lifting ring penetrates through the screw hole through a screw to be fixedly connected with the box body.
The beneficial effects of the above further scheme are:
the lifting ring is prevented from falling off to hurt the personal safety and influence the test result, and the safety of the device and the reliability of the immersion test are improved.
Furthermore, a screw hole is correspondingly formed in the contact part of the movable part of the locking mechanism and the box body, and the movable part penetrates through the screw hole through a screw to be fixedly connected with the box body.
Furthermore, the fixing part of the locking mechanism and the contact part of the upper cover are correspondingly provided with screw holes, and the fixing part penetrates through the screw holes through screws to be fixedly connected with the upper cover.
The beneficial effects of the above further scheme are:
the locking mechanism is prevented from falling off to hurt the personal safety and influence the test result, and the safety of the device and the reliability of the immersion test are improved.
Furthermore, the locking mechanism, the lifting ring, the box body and the upper cover are all made of stainless steel materials.
The beneficial effects of the above further scheme are:
the stainless steel has high strength and good corrosion resistance, and improves the stability and safety of the device.
Further, the pores of the first stainless steel screen and the pores of the second stainless steel screen are both less than 0.04 mm.
The beneficial effects of the above further scheme are:
the test result is prevented from being influenced by the soil flowing water on the litter sample, and the reliability of the immersion test is improved.
Drawings
FIG. 1 is a schematic structural view of a litter soaking test apparatus;
FIG. 2 is a schematic structural diagram of a case;
FIG. 3 is a schematic view of the structure of the upper cover;
fig. 4 is a schematic structural view of the latch mechanism.
Wherein, 1, a locking mechanism; 11. a movable portion; 12. a fixed portion; 2. a box body; 21. a first stainless steel screen; 3. an upper cover; 31. a second stainless steel screen; 4. lifting a ring; 5. a rubber seal strip; 6. a rubber foot pad.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
A litter immersion test device is shown in figure 1 and comprises a locking mechanism 1, a box body 2 with an opening at the top end and an upper cover 3 with an opening at the bottom end, wherein the top end of the box body 2 is detachably connected with the bottom end of the upper cover 3, and the locking mechanism 1 is fixedly connected with the box body 2 and the upper cover 3 respectively;
as shown in fig. 2, the bottom end surface of the box body 2 is a first stainless steel screen 21, each side surface outside the box body 2 is provided with a movable part 11 of the latch mechanism 1, and two opposite side surfaces outside the box body 2 are provided with angle-adjustable lifting rings 4;
as shown in fig. 3, the top end surface of the upper cover 3 is a second stainless steel screen 31, each side surface of the outside of the upper cover 3 is provided with a fixing part 12 of the latch mechanism 1, and the inner wall of the upper cover 3 has the same size as the outer wall of the box body 2;
as shown in fig. 4, the movable part 11 and the fixed part 12 of the latch mechanism 1 are fitted to each other; the contact part of the box body 2 and the upper cover 3 is provided with a rubber sealing strip 5, and the rubber sealing strip 5 is fixedly connected with the upper part of the outer wall of the box body 2.
In this embodiment, the end surface of the case 2 and the end surface of the upper cover 3 are both square.
In this embodiment, the bottom end surface of the outer portion of the box body 2 is provided with rubber pads 6, and the rubber pads 6 are symmetrically arranged on the edge of the bottom end surface.
In this embodiment, the contact portion between the lifting ring 4 and the box body 2 is correspondingly provided with a screw hole, and the lifting ring 4 passes through the screw hole through a screw to be fixedly connected with the box body 2.
In this embodiment, the contact portion between the movable portion 11 of the locking mechanism 1 and the box body 2 is correspondingly provided with a screw hole, and the movable portion 11 passes through the screw hole through a screw to be fixedly connected with the box body 2.
In this embodiment, the fixing portion 12 of the locking mechanism 1 and the contact portion of the upper cover 3 are correspondingly provided with screw holes, and the fixing portion 12 is fixedly connected with the upper cover 3 by passing through the screw holes through screws.
In this embodiment, the latch mechanism 1, the bail 4, the box body 2, and the upper cover 3 are made of stainless steel with high strength and good corrosion resistance.
In this embodiment, the pores of the first stainless steel screen 21 and the pores of the second stainless steel screen 31 are both smaller than 0.04mm, so as to prevent soil loss from causing deviation of weighing results.
The using method comprises the following steps:
weighing, recording the initial weight of the litter submergence testing device, disassembling a movable part 11 and a fixed part 12 of a locking mechanism 1, unlocking an upper cover 3 and a box body 2, disassembling and taking the upper cover 3, loading a litter sample obtained by S-shaped sampling in the field into the box body 2, closing the upper cover 3 to be in complete contact with a rubber sealing strip 5 of the box body 2 to prevent test materials in the device from leaking out, locking the movable part 11 and the fixed part 12 of the locking mechanism 1, locking the upper cover 3 and the box body 2 to prevent the upper cover 3 from being separated from the box body 2, weighing, and recording the dry weight of the litter submergence testing device at the moment;
placing the litter soaking test device into a water pool by using a lifting ring 4, ensuring that water in the water pool overflows an upper cover 3 of the device, and ensuring that the water enters or flows out from a first stainless steel screen 21 and a second stainless steel screen 31 to ensure that the litter is fully contacted with the water;
after soaking for a preset time, taking out the litter soaking test device by using the lifting ring 4, draining, namely placing on a flat ground, wherein water flows out of the first stainless steel screen 21 at the bottom end of the box body 2 and overflows from a gap formed between the rubber foot pad 6 and the flat ground, weighing when no string of water drops drop, and recording the wet weight of the dry weight of the litter soaking test device at the moment.
The test principle is as follows:
and (3) carrying out soaking tests of the same litter in different soaking times by using a litter soaking test device, carrying out soaking tests of the same litter in the same soaking time in different soaking times, obtaining water absorption data of the litter according to weighing data of the tests, and drawing relation curves of the soaking times and the water absorption of the different litter.
The litter immersion test device provided by the invention has the advantages of high practicability, labor investment saving, workload reduction and sufficient immersion and draining, prevents loss of litter samples, improves the reliability of immersion tests, and solves the problems of high labor investment, large workload of workers and low reliability of immersion tests caused by insufficient loss of litter samples and immersion and draining in the prior art.
Claims (7)
1. A litter immersion test device is characterized by comprising a locking mechanism (1), a box body (2) with an opening at the top end and an upper cover (3) with an opening at the bottom end, wherein the top end of the box body (2) is detachably connected with the bottom end of the upper cover (3), and the locking mechanism (1) is fixedly connected with the box body (2) and the upper cover (3) respectively;
the bottom end surface of the box body (2) is provided with a first stainless steel screen (21), each side surface outside the box body (2) is provided with a movable part (11) of the locking mechanism (1), and two opposite side surfaces outside the box body (2) are provided with angle-adjustable lifting rings (4);
the top end face of the upper cover (3) is a second stainless steel screen (31), each side face of the outer part of the upper cover (3) is provided with a fixing part (12) of the locking mechanism (1), and the size of the inner wall of the upper cover (3) is the same as that of the outer wall of the box body (2);
the movable part (11) and the fixed part (12) of the locking mechanism (1) are mutually matched; a rubber sealing strip (5) is arranged at the contact part of the box body (2) and the upper cover (3), and the rubber sealing strip (5) is fixedly connected with the upper part of the outer wall of the box body (2);
the bottom end face of the outer portion of the box body (2) is provided with rubber pad feet (6), and the rubber pad feet (6) are symmetrically arranged on the edge of the bottom end face.
2. A litter submergence test device according to claim 1, wherein the end surface of the case (2) and the end surface of the upper cover (3) are both square.
3. The litter immersion test device according to claim 1, wherein the contact part of the lifting ring (4) and the case (2) is correspondingly provided with a screw hole, and the lifting ring (4) is fixedly connected with the case (2) through the screw hole by a screw.
4. The litter immersion test device according to claim 1, wherein the movable part (11) of the locking mechanism (1) and the contact part of the case (2) are correspondingly provided with screw holes, and the movable part (11) is fixedly connected with the case (2) by passing screws through the screw holes.
5. The litter immersion test device according to claim 1, wherein the fixing part (12) of the locking mechanism (1) and the contact part of the upper cover (3) are correspondingly provided with screw holes, and the fixing part (12) is fixedly connected with the upper cover (3) by passing screws through the screw holes.
6. A litter immersion test device according to claim 1, wherein the locking mechanism (1), the bail (4), the case (2) and the upper cover (3) are made of stainless steel.
7. A litter submergence test device according to claim 1, wherein the first stainless steel screen (21) and the second stainless steel screen (31) each have a porosity of less than 0.04 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810726340.0A CN108709823B (en) | 2018-07-04 | 2018-07-04 | Withered and fallen object immersion test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810726340.0A CN108709823B (en) | 2018-07-04 | 2018-07-04 | Withered and fallen object immersion test device |
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| Publication Number | Publication Date |
|---|---|
| CN108709823A CN108709823A (en) | 2018-10-26 |
| CN108709823B true CN108709823B (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810726340.0A Active CN108709823B (en) | 2018-07-04 | 2018-07-04 | Withered and fallen object immersion test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109540629A (en) * | 2019-01-02 | 2019-03-29 | 北京林业大学 | Material retentiveness measurement device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104114469A (en) * | 2012-02-21 | 2014-10-22 | 艾森曼股份公司 | Immersion treatment installation |
| CN204495580U (en) * | 2015-04-20 | 2015-07-22 | 黑龙江省森林工程与环境研究所 | The device for filtering and collecting of a kind of Forest Litter and precipitation |
| CN106383065A (en) * | 2016-11-15 | 2017-02-08 | 贵州大学 | Device and method for determining field moisture capacity of soil with different particle sizes indoors |
| WO2018018086A1 (en) * | 2016-07-28 | 2018-02-01 | PM Resources Pty Ltd | Water capturing and storing apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008545075A (en) * | 2005-07-05 | 2008-12-11 | レグルース コーポレイション，リミテッド | Trash screen |
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- 2018-07-04 CN CN201810726340.0A patent/CN108709823B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104114469A (en) * | 2012-02-21 | 2014-10-22 | 艾森曼股份公司 | Immersion treatment installation |
| CN204495580U (en) * | 2015-04-20 | 2015-07-22 | 黑龙江省森林工程与环境研究所 | The device for filtering and collecting of a kind of Forest Litter and precipitation |
| WO2018018086A1 (en) * | 2016-07-28 | 2018-02-01 | PM Resources Pty Ltd | Water capturing and storing apparatus |
| CN106383065A (en) * | 2016-11-15 | 2017-02-08 | 贵州大学 | Device and method for determining field moisture capacity of soil with different particle sizes indoors |
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| CN108709823A (en) | 2018-10-26 |
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