CN219417117U - Agricultural plastic film water retention testing arrangement - Google Patents

Abstract

The utility model discloses a water-retaining property testing device for an agricultural mulching film, which comprises: the device comprises a box body, an electronic weighing table, a heater, a test cup and a sealing plug. Wherein: the electronic weighing platform is arranged on the bottom surface of the inner cavity of the box body, and the display screen of the electronic weighing platform is positioned on the outer surface of the side wall of the box body so as to observe the weight change. The heater is of an annular structure, is arranged in the inner cavity of the box body and is positioned above the electronic weighing table. The test cup is placed on the electronic weighing platform, and the upper port of the test cup passes through the top surface through hole of the box body and is positioned above the top surface. The upper port of the test cup is provided with a circle of convex supporting table. The sealing plug is an annular cylinder, and the lower part of the sealing plug is tightly filled in the upper port of the test cup and is stopped on the upper surface of the supporting table. The film water-retaining property testing device can conveniently realize the testing of the water-retaining property of the agricultural film, and provides a reference basis for enterprises to research and develop and optimize the agricultural film.

Description

Agricultural plastic film water retention testing arrangement

Technical Field

The utility model relates to the field of mulching film performance testing equipment, in particular to an agricultural mulching film water-retaining property testing device.

Background

The agricultural mulching film (agricultural film for short) plays a very important role in moisture preservation and heat preservation in the sowing period. With the progress of science and technology, the requirements on agricultural films are higher and higher, and various novel films are continuously appeared. The country is the country with the largest using amount and coverage area of agricultural films in the world, and contributes to the grain security guarantee, vegetable supply and the like of the country. The agricultural film has the functions of moisture preservation, heat preservation, weed control, salt pressing and the like, greatly changes the growth environment of crops, and enables crops which cannot be planted in alpine regions originally or have low planting benefit to grow well. The moisture retention or water retention capacity of agricultural films is an important index for measuring the quality of agricultural films, so that agricultural film manufacturers usually need to measure the water loss of the agricultural films before leaving the factory or in the research and development stage, and then calculate the water retention performance. At present, the lack of an effective special device for testing the water retention of the agricultural film brings inconvenience to the agricultural film manufacturer.

Disclosure of Invention

Aiming at the problems, the utility model provides an agricultural mulching film water-retaining property testing device which can conveniently realize the testing of the water-retaining property of the agricultural film and provides a reference basis for the research and development and optimization of the agricultural film of enterprises. In order to achieve the above purpose, the technical scheme of the utility model is as follows:

an agricultural mulch film water retention testing device, comprising: the device comprises a box body, an electronic weighing table, a heater, a test cup and a sealing plug. Wherein: the electronic weighing platform is arranged on the bottom surface of the inner cavity of the box body, and the display screen of the electronic weighing platform is positioned on the outer surface of the side wall of the box body so as to observe the weight change. The heater is of an annular structure, is arranged in the inner cavity of the box body and is positioned above the electronic weighing table. The test cup is placed on the electronic weighing platform, and the upper port of the test cup passes through the top surface through hole of the box body and is positioned above the top surface. The upper port of the test cup is provided with a circle of convex supporting table. The sealing plug is an annular cylinder, the lower part of the sealing plug is tightly filled in the upper port of the test cup and is stopped on the upper surface of the supporting table, so that the agricultural film to be tested is tightly pressed in the upper port of the test cup, and the port is sealed.

Further, a flexible sealing ring is fixed in the through hole on the top surface of the box body, and the sealing ring is tightly contacted with the outer wall of the test cup.

Further, the heater includes: the device comprises an annular heating body, a fixed tube and a wire. Wherein: the annular heating body surrounds the outer wall of the test cup and is not fixedly connected with the outer wall of the test cup. One end of the fixed tube is fixedly connected with the annular heating body, the other end of the fixed tube is fixedly connected with the box body, one end of the wire is connected with the electric heating wire in the annular heating body, and the other end of the wire penetrates out of the fixed tube and then is connected with the power plug so as to supply power for the electric heating wire.

Further, the electronic weighing platform also comprises a display terminal, wherein the electronic weighing platform is connected with the display terminal, and the display terminal is provided with a display so as to record and display weight data of the electronic weighing platform in real time or periodically.

Further, a temperature sensor is further arranged in the box body and connected with the display terminal, so that the temperature in the box body is monitored, and the heating temperature of the heater is conveniently adjusted.

Further, a temperature controller is arranged on the lead and connected with the display terminal so as to control the heating temperature of the heater according to the data monitored by the temperature sensor.

Further, the inner wall of the box body is covered with an insulating layer, so that heat dissipation in the box body is reduced, and energy consumption is saved.

Further, the material of the sealing plug comprises any one of rubber, flexible plastic and the like.

Compared with the prior art, the utility model has the following beneficial effects: according to the agricultural mulching film water-retaining property testing device, the electronic weighing table is arranged in the box body, the testing cup which is placed on the weighing table and has the upper port located above the top surface of the box body is arranged, the supporting table is arranged at the upper port of the testing cup, and the agricultural film to be tested can be conveniently sealed and pressed in the upper port of the testing cup in a sealing mode by being matched with the annular sealing plug, so that the port is sealed. Therefore, the temperature environment of the soil below the mulch film can be simulated by heating the water in the test cup through the heater, and the water holding capacity of the agricultural film to be tested to the water in the test cup is further tested. Because the upper port of the test cup is positioned outside the box body, moisture penetrating through the agricultural film can be timely dissipated, and the problem that the water permeability of the agricultural film is affected due to accumulation of the moisture, and then the test result is affected is avoided. Meanwhile, the heating temperature of the heater can be adjusted, so that the water-retaining capacity of the agricultural film to be tested in different temperature environments is tested. The mulching film water-retaining property testing device can conveniently realize the testing of the water-retaining property of the mulching film, and is helpful for providing a reference basis for the research and development of enterprises and the optimization of the mulching film.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic view showing the structure of a water-retaining property testing device for agricultural mulch film in the following examples.

FIG. 2 is an internal schematic view of the agricultural mulch water-retaining property testing apparatus in the following examples.

Fig. 3 is a top view of the case in the following embodiment.

FIG. 4 is an internal schematic view of the test cup in the following examples.

Fig. 5 is a schematic structural diagram of a seal ring in the following embodiment.

Fig. 6 is a top view of the heater in the following embodiment.

The label marks in the figures represent: 1-box, 2-electronic weighing platform, 3-heater, 4-test cup, 5-sealing plug, 6-supporting bench, 7-agricultural film, 8-sealing ring, 9-display terminal, 10-temperature sensor, 301-annular heating body, 302-fixed pipe, 303-power plug, 304-temperature controller.

Detailed Description

It should be noted that, for convenience of description, the words "upper", "lower", "left" and "right" in the present utility model, if they mean only that the directions are consistent with the upper, lower, left, and right directions of the drawings themselves, and do not limit the structure, only for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element to be referred to needs to have a specific orientation, and is constructed and operated in a specific orientation, and thus the limitation of the present utility model is not to be construed. The technical scheme of the utility model is further described with reference to the specification, the drawings and the specific embodiments.

Referring to fig. 1 to 5, there is illustrated an agricultural mulch water retention testing device including: the electronic weighing device comprises a box body 1, an electronic weighing platform 2, a heater 3, a test cup 4 and a sealing plug 5. Wherein:

first, referring to fig. 1 and 2, the electronic weighing platform 2 is fixed on the bottom surface of the inner cavity of the case 1, and the display screen of the electronic weighing platform 2 is located on the outer surface of the side wall of the case 1 so as to observe the weight change. The heater 3 is of an annular structure, is arranged in the inner cavity of the box body 1 and is positioned above the electronic weighing platform 2.

The top surface of the box body 1 is neutral and provided with a through hole, the test cup 4 is placed on the electronic weighing platform 2, and the upper port of the test cup 4 passes through the through hole and is positioned above the top surface of the box body 1. Referring to fig. 4, the upper port of the test cup 4 has a ring of convex support stand 6. The sealing plug 5 is an annular cylinder, and the lower part of the sealing plug is tightly filled in the upper port of the test cup 4 and is stopped on the upper surface of the supporting table 6, so that the agricultural film 7 to be tested is tightly pressed in the upper port of the test cup 4, and the port is sealed. The material of the sealing plug 5 can be selected from rubber or flexible plastic.

Before testing, water is added into the test cup 4, then an agricultural film 7 to be tested, the diameter of which is larger than that of the upper port of the test cup 4, is paved on the port, then the sealing plug 5 is plugged in, the agricultural film 7 to be tested is pressed on the supporting table 6, and meanwhile, the upper port of the test cup 4 is sealed (refer to fig. 3 and 4). And then starting the heater 3 to heat the water in the test cup 4 so as to simulate the temperature environment of the soil below the mulch film, and further testing the water holding capacity of the agricultural film 7 to be tested on the water in the test cup 4. Because the upper port of the test cup 4 is positioned outside the box body 1, moisture penetrating through the agricultural film 7 to be tested can be timely dissipated, and the problem that the water permeability of the agricultural film 7 is affected due to accumulation of the moisture, and then the test result is affected is avoided. The water retention= (weight displayed on the display of the electronic weighing station 2 before test-weight displayed on the display of the electronic weighing station 2 after test)/weight displayed on the display of the electronic weighing station 2 before test. The mulching film water-retaining property testing device can conveniently realize the testing of the water-retaining property of the mulching film, and is helpful for providing a reference basis for the research and development of enterprises and the optimization of the mulching film.

Referring to fig. 1 to 4, in another embodiment, in the agricultural mulching film water retention testing device illustrated in the above embodiment, a flexible sealing ring 8 is fixed in the through hole on the top surface of the box 1, and the flexible sealing ring 8 may be made of rubber or flexible plastic. The sealing ring 8 is in close contact with the outer wall of the test cup 4, so that the test cup 4 can enter and exit the box body 1, and meanwhile, sealing can be formed between the through hole and the outer wall of the test cup 4, and heat dissipation in the box body 1 is reduced.

Referring to fig. 2 and 6, in another embodiment, in the agricultural mulch water retention testing device exemplified by the above embodiment, the heater 3 includes: a ring-shaped heating body 301 and a fixed tube 302. Wherein: the annular heating body 301 surrounds the outer wall of the test cup 4 and is not fixedly connected with the outer wall. One end of the fixed tube 302 is fixedly connected with the annular heating body 301, the other end of the fixed tube is fixedly connected with the box body 1, an electric heating wire is arranged in the annular heating body 301 and is connected with one end of a wire, and the other end of the wire penetrates out of the fixed tube 302 and the side wall of the box body 1 and then is connected with the power plug 303 so as to supply power for the electric heating wire.

Referring to fig. 2, in another embodiment, the agricultural mulching film water-retention testing device according to the above embodiment further includes a display terminal 9 (such as a computer and a host thereof, etc.), where the electronic weighing platform 2 is connected to the display terminal 9, so as to record and display weight data of the electronic weighing platform 2 in real time or periodically, for the experimenter to collect, or can record the weight data displayed on the display of the electronic weighing platform 2 manually at regular time. The temperature sensor 10 is further arranged in the box body 1, and the temperature sensor 10 is connected with the display terminal 9 through a signal wire so as to monitor the temperature in the box body 1 and facilitate the adjustment of the heating temperature of the heater 3, thereby testing the water-retaining capacity of the agricultural film 7 to be tested under different temperature environments. A temperature controller 304 is arranged on the lead, and the temperature controller 304 is connected with the display terminal 9 so as to control the heating temperature of the heater 3 according to the data monitored by the temperature sensor 10.

In another embodiment, in the agricultural mulching film water-retention testing device according to the above embodiment, the inner wall of the box body 1 is covered with an insulation layer, so as to reduce heat loss in the box body 1 and save energy consumption.

Finally, it should be noted that any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model. While the foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the utility model, but rather, it is intended to cover all modifications or variations within the scope of the utility model as defined by the claims of the present utility model.

Claims (8)

1. The utility model provides an agricultural plastic film water retention testing arrangement which characterized in that includes: the electronic weighing device comprises a box body, an electronic weighing table, a heater, a test cup and a sealing plug; wherein: the electronic weighing platform is arranged on the bottom surface of the inner cavity of the box body, and the display screen of the electronic weighing platform is positioned on the outer surface of the side wall of the box body; the heater is of an annular structure, is arranged in the inner cavity of the box body and is positioned above the electronic weighing table; the test cup is placed on the electronic weighing table, and the upper port of the test cup passes through the through hole on the top surface of the box body and is positioned above the top surface; a circle of convex supporting table is arranged in the upper port of the test cup; the sealing plug is an annular cylinder, and the lower part of the sealing plug is tightly filled in the upper port of the test cup and is stopped on the upper surface of the supporting table.

2. The agricultural mulch water retention testing device according to claim 1, wherein a flexible sealing ring is fixed in the through hole on the top surface of the box body, and the sealing ring is in close contact with the outer wall of the testing cup.

3. The agricultural mulch water retention testing device of claim 1, wherein the heater comprises: the device comprises an annular heating body, a fixed tube and a wire; wherein: the annular heating body surrounds the outer wall of the test cup and is not fixedly connected with the outer wall of the test cup; one end of the fixed tube is fixedly connected with the annular heating body, the other end of the fixed tube is fixedly connected with the box body, one end of the wire is connected with the electric heating wire in the annular heating body, and the other end of the wire penetrates out of the fixed tube and then is connected with the power plug.

4. The agricultural mulch water retention testing device of claim 3, further comprising a display terminal, the electronic weighing station being connected to the display terminal, the display terminal having a display.

5. The agricultural mulch water retention testing device according to claim 4, wherein a temperature sensor is further provided in the box body, and the temperature sensor is connected with a display terminal.

6. The agricultural mulch water retention testing device according to claim 5, wherein a temperature controller is provided on the wire, the temperature controller being connected to the display terminal.

7. The agricultural mulch water retention testing device according to any one of claims 1 to 6, wherein the inner wall of the housing is covered with a heat insulating layer.

8. The agricultural mulch water retention testing device according to any one of claims 1 to 6 wherein the sealing plug comprises any one of rubber and flexible plastic.