Sand collection structure and wind erosion instrument

Abstract

The present invention provides a sand collection structure and a wind erosion instrument. The sand collection structure includes a housing, a sand and wind separation component, a guide plate, and a sand collection box. Among them, a sand and wind inlet is formed on the housing; the sand and wind separation component is arranged inside the housing, and one end of the sand and wind separation component is connected with an exhaust pipe, and the other end is connected with a filter screen; the guide plate is arranged inside the housing for guiding the sand and dust filtered by the filter screen into the sand collection box; the sand collection box is arranged inside the housing for collecting the sand and dust guided by the guide plate. By adding a sand and wind separation component, a filter screen, and a conical guide plate structure, the air flow speed is reduced, so that the sand and wind are efficiently separated, the impact of the air flow on the bottom of the sand collection box is reduced, and the accuracy of weighing is improved; a plurality of sand collection structures on the wind erosion instrument are rotatably installed on a fixed rod along the radial direction of the fixed rod, so that the sand inlet of the wind erosion instrument always faces the wind direction, different heights of sand samples can be effectively collected, and the observation error can be effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of soil wind erosion monitoring, and particularly to a sand collecting structure and a wind erosion instrument. Background Art

[0002] Soil wind erosion is an important factor leading to land desertification and degradation. To reduce the harm of soil wind erosion and the occurrence of sand and dust weather, it is necessary to study the structure of the sand-dust flow, its movement law, and the mechanism of soil wind erosion.

[0003] As a device that can collect sand and dust particles in the sand-dust flow, the wind erosion instrument helps to study the change of the sand-dust flow structure over time and its relationship with other meteorological monitoring elements (wind speed, wind direction, air temperature, humidity, etc.), and then understand and master the law of sand movement, and theoretically find effective methods to reduce soil wind erosion, so as to provide necessary scientific and technological basis for the accurate selection of sand prevention and control measures.

[0004] For the currently commonly used mechanical wind erosion instruments, their sand collection time is discontinuous, they cannot collect wind erosion products with the change of wind direction, and they cannot completely express the entire wind erosion process; the existing automatic sand collection devices have a low time resolution and poor stability, and are not suitable for strong sand weather. Summary of the Invention

[0005] A sand collecting structure and a wind erosion instrument disclosed by the present invention solve the problems of the existing mechanical wind erosion instruments, whose sand collection time is discontinuous, they cannot collect wind erosion products with the change of wind direction, and they cannot completely express the entire wind erosion process; the existing automatic sand collection devices have a low time resolution and poor stability, and are not suitable for strong sand weather. It can efficiently separate sand and dust, can record the wind erosion amount in real time and continuously, realize wind erosion collection at different heights, and has good stability.

[0006] To achieve the above object, the technical solution of the present invention is specifically implemented as follows:

[0007] On one hand, the present invention discloses a sand collecting structure, including a housing, a sand-dust separation component, a guide plate, and a sand collecting box. Among them, a sand-dust inlet is opened on the housing; the sand-dust separation component is arranged inside the housing, and one end of the sand-dust separation component is connected with an exhaust pipe, and the other end is connected with a filter screen; the guide plate is arranged inside the housing to guide the sand and dust filtered by the filter screen into the sand collecting box; the sand collecting box is arranged inside the housing to collect the sand and dust guided by the guide plate.

[0008] Further, a weighing sensor is arranged at the bottom of the sand collecting box to measure the weight of the sand and dust collected in the sand collecting box in real time.

[0009] Furthermore, the sand and wind separation component includes a ventilation pipeline, a disc-shaped shutter, and a baffle. The disc-shaped shutter is fixed on the ventilation pipeline, and the baffle is fixed on the ventilation pipeline, and the plane where the baffle is located is perpendicular to the plane where the disc-shaped shutter is located.

[0010] Furthermore, the overall structure of the filter screen is conical.

[0011] Furthermore, the guide plate is conical.

[0012] On the other hand, the present invention discloses an aeolian erosion instrument, which includes a plurality of sand collection structures as described above.

[0013] Furthermore, the aeolian erosion instrument further includes a wind vane, a fixing rod, and a fixing base. The wind vane is fixed at the top of the fixing rod, and the fixing base is fixed at the bottom of the fixing rod to fix the aeolian erosion instrument. A plurality of the sand collection structures are rotatably installed on the fixing rod along the radial direction of the fixing rod, and the rotation directions of the plurality of sand collection structures are the same.

[0014] Furthermore, a plurality of the sand collection structures are rotatably installed on the fixing rod through a rotating shaft.

[0015] Furthermore, 5 sand collection structures are arranged at equal intervals along the radial direction of the fixing rod.

[0016] Beneficial technical effects:

[0017] 1. The present invention discloses a sand collection structure, which includes a housing, a sand and wind separation component, a guide plate, and a sand collection box. Among them, a sand and wind inlet is opened on the housing; the sand and wind separation component is arranged inside the housing, and one end of the sand and wind separation component is connected with an exhaust pipe, and the other end is connected with a filter screen; the guide plate is arranged inside the housing to guide the sand and dust filtered by the filter screen into the sand collection box; the sand collection box is arranged inside the housing to collect the sand and dust guided by the guide plate, effectively realizing the separation of sand and wind.

[0018] 2. In the present invention, the addition of the sand and wind separation component, the filter screen, and the guide plate structure in the sand collection structure reduces the air flow speed, enables the efficient separation of sand and wind, reduces the impact of the air flow on the bottom of the sand collection box, and improves the accuracy of weighing.

[0019] 3. In the present invention, a plurality of sand collection structures are rotatably installed on the fixing rod along the radial direction of the fixing rod, and the rotation directions of the plurality of sand collection structures are the same, so that the sand inlet of the aeolian erosion instrument always faces the wind direction.

[0020] 4. In the present invention, a plurality of the sand collection structures are rotatably installed on the fixing rod along the radial direction of the fixing rod, effectively collecting sand samples at different heights, so as to reduce the observation error.

[0021] 5. In the present invention, a weighing sensor is provided at the bottom of the sand collection box for measuring in real time the weight of the sand and dust collected in the sand collection box, enabling real-time collection of the weights of windblown sand at different heights.

[0022] 6. In the present invention, the fixed base is fixed to the bottom of the fixed rod to fix the wind erosion instrument, so that the wind erosion instrument has good stability and can adapt to strong sand weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for the description of the embodiments will be briefly introduced below.

[0024] Figure 1 It is a schematic diagram of the overall structure of a sand collection structure according to the present invention;

[0025] Figure 2 It is a schematic diagram of the split structure of a sand collection structure according to the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the filter screen in a sand collection structure according to the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the deflector in a sand collection structure according to the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of a wind erosion instrument according to the present invention.

[0029] Wherein, 1 - housing, 11 - wind and sand inlet, 2 - wind and sand separation component, 21 - ventilation pipeline, 22 - disc-shaped louvers, 23 - baffle, 3 - exhaust pipe, 4 - filter screen, 5 - deflector, 6 - sand collection box, 7 - weighing sensor, 8 - wind vane, 9 - fixed rod, 10 - fixed base, 12 - rotating shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention; the orientation words "inner, outer" refer to the inside and outside relative to the contour of each component itself.

[0034] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial positional relationship of a device or feature shown in the figure with other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0035] In addition, it should be noted that the use of terms such as "first", "second" etc. to define components is only for the convenience of differentiating the corresponding components. Without additional declarations, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present invention.

[0036] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] On the one hand, the present invention discloses a sand collection structure, see Figure 1 and Figure 2 , which includes a housing 1, a wind-sand separation component 2, a guide plate 5 and a sand collection box 6. Specifically, the housing 1 can effectively prevent sand and dust leakage. A wind-sand inlet 11 is provided on the outer wall of the housing, and the wind-sand enters from the wind-sand inlet 11; the wind-sand separation component 2 is arranged inside the housing 1, and one end of the wind-sand separation component 2 is connected with an exhaust pipe 3, and the other end is connected with a filter screen 4, and the overall structure of the filter screen 4 is conical, see Figure 3 , preferably, the wind-sand separation component 2 includes a ventilation pipeline 21, a disc-shaped shutter 22 and a baffle 23, see Figure 2 , the disc-shaped shutter 22 is fixed on the ventilation pipeline 21, the baffle 23 is fixed on the ventilation pipeline 21, and the plane where the baffle 23 is located is perpendicular to the plane where the disc-shaped shutter 22 is located. The baffle 23 can ensure that the sand and dust rotate in the same direction after entering the sand collection device; the guide plate 5 is arranged inside the housing 1 to guide the sand and dust filtered by the filter screen 4 into the sand collection box 6. Preferably, the guide plate 5 is conical, see Figure 4, the conical deflector causes the sand dust to rotate therein to reduce the movement speed of the sand dust, and at the same time eliminates the impact of the downward airflow at the outlet of the exhaust pipe 3 on the bottom of the sand collection box 6. The rotating sand dust moves towards the inner wall of the sand collection box 6 under the action of centrifugal force; the sand collection box 6 is arranged inside the outer shell 1 to collect the sand dust guided by the deflector 5. Preferably, a weighing sensor 7 is fixed at the bottom of the sand collection box 6 to measure the weight of the sand dust collected in the sand collection box 6 in real time.

[0038] The working principle of the sand collection structure disclosed by the present invention is as follows:

[0039] The sand dust enters the wind erosion instrument through the wind-sand inlet 11. The sand dust entering the wind erosion instrument is carried by the air flow into the wind-sand separation assembly 2. The baffle 23 on the wind-sand separation assembly 2 ensures that the sand dust rotates in the same direction after entering the wind erosion instrument and moves downward through the wind-sand separation assembly 2 for the first-stage speed reduction; after being decelerated by the disc-shaped louvers 22, the sand dust enters the filter net 4 and moves downward for the second-stage speed reduction; due to the special shape of the conical deflector 5, the sand dust rotates therein to achieve the third-stage speed reduction. At the same time, the impact of the downward airflow at the outlet of the exhaust pipe 3 on the bottom of the sand collection box 6 can be eliminated. While rotating, the sand dust moves towards the inner wall of the sand collection structure under the action of centrifugal force. After passing through the conical deflector 5, the sand dust will fall more concentratedly into the sand collection box 6. The excess air except the sand dust will be discharged through the exhaust pipe 3 to achieve wind-sand separation. Finally, the sand dust falling into the sand collection box 6 is continuously weighed by the weighing sensor 7.

[0040] When the airflow speed at the outlet of the exhaust pipe 3 is too high, the airflow is likely to impact the weighing sensor 7 at the bottom of the sand collection box 6, affecting the accuracy of the measurement data. The sand collection structure disclosed by the present invention reduces the airflow speed by adding the wind-sand separation assembly 2, the filter net 4 and the conical deflector 5 structures, enables efficient wind-sand separation, reduces the impact of the airflow on the bottom of the sand collection box 6, and improves the accuracy of weighing.

[0041] On the other hand, the present invention discloses a wind erosion instrument. Refer to Figure 5, including several sand collecting structures as described above, further including a wind vane 8, a fixing rod 9 and a fixing base 10. The wind vane 8 is fixed at the top of the fixing rod 9, and the fixing base 10 is fixed at the bottom of the fixing rod 9 to fix the wind erosion instrument, effectively enhancing the stability of the wind erosion instrument so that it can be applied to strong sand weather. Several sand collecting structures are rotatably installed on the fixing rod 9 along the radial direction of the fixing rod 9, so that the sand inlet of the wind erosion instrument always faces the wind direction. Preferably, 5 sand collecting structures are rotatably installed on the fixing rod 9 at equal intervals through a rotating shaft 12, and the rotating directions of several sand collecting structures are the same. This structure enables the wind erosion instrument to effectively collect sand samples at different heights, so as to reduce the observation error. At the same time, combined with the weighing sensor 7 at the bottom of the sand collecting structure, the wind erosion instrument can realize real-time collection of the sand and dust weights at different heights. It can be understood that the real-time data obtained by the weighing sensor 7 can be uploaded to a host computer or a mobile terminal, etc. By using the real-time and accurate data obtained by the wind erosion instrument, a method for effectively reducing soil wind erosion can be found theoretically, thereby providing a necessary scientific and technological basis for the accurate selection of sand prevention and control measures.

[0042] The sand collecting structure disclosed in the present invention reduces the air flow velocity by adding a sand and wind separation component 2, a filter screen 4 and a conical deflector 5 structure, enables efficient separation of sand and wind, reduces the impact of the air flow on the bottom of the sand collecting box 6, and improves the accuracy of weighing; several sand collecting structures on the wind erosion instrument are rotatably installed on the fixing rod 9 along the radial direction of the fixing rod 9, so that the sand inlet of the wind erosion instrument always faces the wind direction, and can effectively collect sand samples at different heights, effectively reducing the observation error.

[0043] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0044] The above embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary engineering and technical personnel in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A sand collection structure, characterized in that, Comprising: A housing (1) with a sand and wind inlet (11) provided thereon; A sand and wind separation component (2) disposed inside the housing (1), one end of the sand and wind separation component (2) being connected to an exhaust duct (3) and the other end being connected to a filter screen (4); A deflector (5) disposed inside the housing (1) for guiding the sand and dust filtered by the filter screen (4) into a sand collection box (6); The sand collection box (6) disposed inside the housing (1) for collecting the sand and dust deflected by the deflector (5); A weighing sensor (7) is provided at the bottom of the sand collection box (6) for measuring in real time the weight of the sand and dust collected in the sand collection box (6); The sand and wind separation component (2) includes a ventilation pipeline (21), a disc-shaped shutter (22) and a baffle (23), the disc-shaped shutter (22) being fixed on the ventilation pipeline (21), the baffle (23) being fixed on the ventilation pipeline (21), and the plane where the baffle (23) is located being perpendicular to the plane where the disc-shaped shutter (22) is located.

2. The sand collection structure according to claim 1, characterized in that, The overall structure of the filter screen (4) is conical.

3. The sand collecting structure according to claim 1, characterized in that, The deflector (5) is conical.

4. An aeolian erosion instrument, characterized in that, Comprising a plurality of sand collection structures as described in any one of claims 1-3.

5. The wind erosion instrument according to claim 4, wherein, It further includes a wind vane (8), a fixing rod (9) and a fixing base (10), the wind vane (8) being fixed at the top of the fixing rod (9), the fixing base (10) being fixed at the bottom of the fixing rod (9) to fix the wind erosion instrument, and a plurality of the sand collection structures being rotatably mounted on the fixing rod (9) along the radial direction of the fixing rod (9), and the rotation directions of the plurality of the sand collection structures being the same.

6. A wind erosion instrument according to claim 5, characterized in that, A plurality of the sand collection structures are rotatably mounted on the fixing rod (9) through a rotating shaft (12).

7. A wind erosion instrument according to claim 5, characterized in that, Five sand collection structures are arranged at equal intervals along the radial direction of the fixing rod (9).

Images