A sliding type automatic weighing sand collecting instrument

Abstract

The present invention discloses a sliding automatic weighing sand collector, which relates to the technical field of wind erosion monitoring, and comprises a sand collector housing, a sand inlet is provided on the sand collector housing, a sliding rod, a sand storage box and a gravity sensing device are arranged in the sand collector housing; the sliding rod is vertically arranged in the sand collector housing, the sand storage box is sleeved on the sliding rod and can slide up and down along the sliding rod; the gravity sensing device is installed at the top of the sand collector housing, and the gravity sensing device is connected to the sand storage box through a connecting line; the sand inlet is connected to the sand storage box through a sand inlet channel. The present invention is easy to install, easy to operate and carry, and can realize automatic continuous observation, and is suitable for field wind erosion measurement.

Description

Technical Field

[0001] The invention relates to the technical field of wind erosion monitoring, in particular to a sliding type automatic weighing sand collector. Background Art

[0002] Soil wind erosion is the process in which wind blows, transports and deposits surface soil particles or sand.

[0003] The amount of soil erosion refers to the difference in the mass of soil transported and deposited by wind within a certain period of time. It is an important indicator of regional wind erosion intensity. The measurement of soil erosion is the basis for monitoring the wind erosion process, verifying and revising wind erosion models, assessing wind erosion intensity and hazards, and evaluating the effectiveness of wind erosion control measures.

[0004] At present, there is no unified standard soil wind erosion measurement instrument and method at home and abroad. There are three main types of existing field measurement methods:

[0005] ① Rough estimation method, by selecting topographical features such as wind erosion pits, or placing measuring rods in typical wind erosion plots, observing the degree of wind erosion in the wind erosion landscape and the depth of erosion accumulation of the measuring rods, roughly estimating the wind erosion rate. This method is relatively simple, but the measurement accuracy is extremely low, especially in the absence of obvious topographical features, frequent wind and sand activities and fast moving sand dunes. This method cannot be effectively applied.

[0006] ② Mechanical sand collector method: use a mechanical sand collector (such as flat-mouth sand collector, multi-channel square-mouth sand collector, MWAC sand collector, cyclone separation sand collector, etc.) to quantitatively and directly observe the intensity of wind and sand flow.

[0007] ③ Model estimation method, by measuring wind erosion data at multiple points, and then estimating regional wind erosion through empirical models. This method has high measurement accuracy, but the measurement process is relatively cumbersome, requiring the deployment of a large number of observation points, and long-term monitoring data. Wind erosion models are established according to the laws of wind and sand movement and environmental factors in different regions, and require a high investment of manpower and material resources.

[0008] In addition, there are methods such as element tracer method and particle size comparison method, which are not suitable for long-term field observations due to their shortcomings such as high technical difficulty, high cost and poor scalability.

[0009] In summary, the existing field measurement of soil wind erosion mainly faces two problems: 1. The problem of measurement accuracy and simplicity of the method. The accuracy of field measurement of wind erosion is directly related to the follow-up work such as wind erosion process monitoring and wind erosion model verification and revision. Due to the harsh climate environment in the wind erosion area, many factors not controlled by humans, and large temporal and spatial variability, simple measurement tools such as measuring rods cannot obtain accurate measurement data. Instruments and equipment with higher precision are not conducive to carrying and long-term use in the field due to their heavy disadvantages. At the same time, the complicated installation and operation methods of the instruments are not conducive to the promotion of measurement methods. 2. The problem of being unable to achieve automatic measurement. The existing instruments cannot effectively eliminate the fluid pressure generated by the wind. Especially during strong storms, the "wind pressure" will affect the weight sensor, thereby seriously affecting the weighing accuracy of sand and dust. It can be seen that the above-mentioned wind and sand flow observation technology in the prior art is difficult to achieve high-precision and high-time resolution monitoring.

[0010] Therefore, it is urgent to provide a new sand collecting instrument to solve the above problems existing in the prior art. Summary of the invention

[0011] The purpose of the present invention is to provide a sliding automatic weighing sand collector to solve the problems existing in the above-mentioned prior art. It is easy to install, easy to operate and carry, and can realize automatic and continuous observation, and is suitable for field wind erosion measurement.

[0012] To achieve the above object, the present invention provides the following solutions:

[0013] The present invention provides a sliding automatic weighing sand collector, comprising a sand collector shell, a sand inlet being opened on the sand collector shell, a sliding rod, a sand storage box and a gravity sensing device being arranged in the sand collector shell; the sliding rod is vertically arranged in the sand collector shell, the sand storage box is sleeved on the sliding rod and can slide up and down along the sliding rod; the gravity sensing device is installed on the top of the sand collector shell, and the gravity sensing device is connected to the sand storage box through a connecting line; the sand inlet is connected to the sand storage box through a sand inlet channel.

[0014] Preferably, it also includes a base, and the sand collector shell is installed on the base.

[0015] Preferably, the base includes a mounting surface and a column, the mounting surface is mounted on the top of the column, and the column is used to be inserted into soil or concrete; a plurality of reserved holes are opened on the mounting surface in different directions, each of the reserved holes is used to install a sand collector housing, and a mounting column is provided at the bottom of the sand collector housing, and the mounting column is installed in the reserved hole.

[0016] Preferably, the mounting surface is provided with reserved holes in 8 directions.

[0017] Preferably, the top and bottom of the sliding rod are respectively connected to the top and bottom of the sand collector housing, and the gravity sensing device is located directly above the sand storage box.

[0018] Preferably, the sand storage box is a hollow cylinder with a bottom at the top and a bottom, and a sliding hole is provided in the middle of the sand storage box, which can be sleeved on the sliding rod; a connecting ring is provided on the top of the sand storage box, and the connecting ring is connected to the gravity sensing device through the connecting line; a sand inlet hole is also provided on the top of the sand storage box, and the sand inlet hole is connected to the sand inlet channel.

[0019] Preferably, the sand inlet channel is a horn-shaped channel, the entrance of the sand inlet channel is square and connected to the sand inlet, and the end of the sand inlet channel passes through the sand inlet hole and extends into the sand storage box; in an initial state, the end of the sand inlet channel contacts the bottom of the sand storage box, and after the sand storage box starts to enter sand, the distance between the end of the sand inlet channel and the bottom of the sand storage box is enlarged, and when the sand storage box is full of sand, the end of the sand inlet channel is separated from the sand storage box.

[0020] Preferably, the interior of the sand inlet channel is smooth and has a slope, and an airflow attenuation synapse is provided on the inner wall of the sand inlet channel, and the airflow attenuation synapse is used to prevent sand from flowing back and escaping.

[0021] Preferably, the sand inlet is arranged on the front side of the sand collector housing, and a dustproof net is arranged on the back side of the sand collector housing, and the dustproof net can let air in and prevent sand from passing through; a side door is arranged on the side of the sand collector housing.

[0022] Preferably, the sand inlet is provided with four levels from bottom to top, and the four levels of the sand inlet are 5 cm, 15 cm, 30 cm and 50 cm above the ground respectively; the number of the sand inlet channel, the sand storage box, the sliding rod, the gravity sensing device and the connecting wire corresponds to the number of the sand inlets.

[0023] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0024] The sliding type automatic weighing sand collector provided by the present invention is easy to install, convenient to operate and carry, and can realize automatic continuous observation, and is suitable for field wind erosion measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of the shell of the sand collector in the present invention;

[0027] Figure 2 It is a structural schematic diagram of the base in the present invention;

[0028] Figure 3 It is a schematic diagram of the structure inside the shell of the sand collector of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the sand storage box in the present invention;

[0030] Figure 5 It is a structural schematic diagram of the sand inlet channel in the present invention;

[0031] Figure 6 It is a schematic diagram of the back side of the shell of the sand collector in the present invention;

[0032] In the figure: 1-sand collector housing, 2-side door, 3-sand inlet, 4-mounting column, 5-base, 51-mounting surface, 52-reserved hole, 53-column, 6-gravity sensing device, 7-connecting line, 8-sliding rod, 9-sand storage box, 91-connecting ring, 92-sliding hole, 93-sand inlet hole, 10-sand inlet channel, 101-air flow attenuation synapse, 11-dustproof net. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The purpose of the present invention is to provide a sliding automatic weighing sand collector to solve the problems existing in the prior art. The sand collector is easy to install, convenient to operate and carry, and can realize automatic continuous observation, and is suitable for field wind erosion measurement.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] This embodiment provides a sliding type automatic weighing sand collector, such as Figure 1-6As shown, it includes a sand collector housing 1, on which an openable side door 2 and a sand inlet 3 are provided; a sliding rod 8, a sand storage box 9 and a gravity sensing device 6 are provided in the sand collector housing 1, the sliding rod 8 is vertically arranged in the sand collector housing 1, and the top and bottom of the sliding rod 8 are respectively connected to the top and bottom of the sand collector housing 1, the sand storage box 9 is sleeved on the sliding rod 8, and can slide up and down along the sliding rod 8, and the sliding rod 8 is only used to limit the displacement of the sand storage box 9 caused by the wind; the gravity sensing device 6 is installed at the top of the sand collector housing 1 and is located directly above the sand storage box 9, and the gravity sensing device 6 is connected to the sand storage box 9 through a connecting line 7. In this embodiment, the gravity sensing device 6 and the sand storage box 9 are connected by the connecting line 7, and the weight of the sample is measured by pulling the gravity change in the sand storage box 9, wherein the gravity sensing device 6 can be selected from the prior art according to work needs; the sand inlet 3 is connected to the sand storage box 9 through a sand inlet channel 10.

[0037] In the present embodiment, the sand collector housing 1 is installed on the base 5; specifically, the base 5 includes a mounting surface 51 and four columns 53, the mounting surface 51 is installed on the top of the four columns 53, and the columns 53 are used to be inserted into the soil or concrete; a plurality of reserved holes 52 are opened on the mounting surface 51 in different directions, each reserved hole 52 is used to install a sand collector housing 1, and a mounting column 4 is provided at the bottom of the sand collector housing 1, and the mounting column 4 is installed in the reserved hole 52; in the present embodiment, the mounting surface 51 is preferably provided with reserved holes 52 in 8 directions, and sand collectors in 8 directions can be installed; wherein, the number of the reserved holes 52 can also be adjusted according to specific work needs.

[0038] In this embodiment, the sand storage box 9 is a hollow cylinder with a bottom and a bottom, and the interior is hollow. A sliding hole 92 is provided in the middle of the sand storage box 9, which can be mounted on the sliding rod 8; a top cover is provided on the top of the sand storage box 9, and a connecting ring 91 is provided on the top cover, and the connecting ring 91 is connected to the gravity sensing device 6 through a connecting line 7; a sand inlet hole 93 is also provided on the top of the sand storage box 9, and the sand inlet hole 93 is used to be connected to the end of the sand inlet channel 10.

[0039] In this embodiment, the sand inlet channel 10 is a horn-shaped channel, the entrance of the sand inlet channel 10 is square, and is connected to the sand inlet 3. The end of the sand inlet channel 10 is slender and can pass through the sand inlet hole 93 and go deep into the sand storage box 9; the end of the sand inlet channel 10 is initially close to the bottom of the sand storage box 9, and the sand inlet channel 10 is long enough. After the sand storage box 9 starts to enter the sand, as the gravity continues to slide down, the distance between the end of the sand inlet channel 10 and the bottom of the sand storage box 9 is widened, and the sand inlet channel 10 gradually moves out of the sand storage box 9. After the sand storage box 9 is full, the end of the sand inlet channel 10 is completely separated from the sand storage box 9, and the observation is stopped. After the sand storage box 9 is full of sand, it should be sampled and emptied, and recounted. The sand storage box 9 has different specifications. Usually, the sand storage box 9 configured with the sand inlet 3 at the lower end has the largest capacity, which decreases step by step upward, and the upper capacity is the smallest. The capacity of the sand storage box 9 can also be changed according to the local wind and sand conditions.

[0040] In this embodiment, the interior of the sand inlet channel 10 is smooth and has a certain slope, and is provided with a partial airflow attenuation synapse 101 to prevent the collected sand from being carried away due to excessive internal wind speed; the setting position and shape of the airflow attenuation synapse 101 are selected according to specific work needs.

[0041] In this embodiment, an extremely dense dustproof net 11 (the mesh size of the dustproof net 11 is less than 0.075 mm) is arranged on the back of the sand collector housing 1, which is ventilated but sand cannot pass through, allowing air to flow and facilitating sand collection.

[0042] In this embodiment, the sand inlet 3 is arranged in four levels from bottom to top, and the heights of the four-level sand inlet 3 from the ground are 5 cm, 15 cm, 30 cm, and 50 cm respectively. It can be changed to different heights and different numbers of layers as needed; the sand inlet channel 10, the sand storage box 9, the sliding rod 8, the gravity sensing device 6 and the connecting line 7 are also adjusted accordingly.

[0043] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A sliding type automatic weighing sand collector, characterized in that: The sand collector comprises a sand collecting device shell, a sand inlet is provided on the sand collecting device shell, a sliding rod, a sand storage box and a gravity sensing device are arranged in the sand collecting device shell; the sliding rod is vertically arranged in the sand collecting device shell, the sand storage box is sleeved on the sliding rod and can slide up and down along the sliding rod; the gravity sensing device is installed on the top of the sand collecting device shell, and the gravity sensing device is connected to the sand storage box through a connecting line; the sand inlet is connected to the sand storage box through a sand inlet channel; It also includes a base, and the sand collector housing is installed on the base; The sand storage box is a hollow cylinder with a bottom at the top and a bottom. A sliding hole is provided in the middle of the sand storage box, which can be sleeved on the sliding rod. A connecting ring is provided on the top of the sand storage box, and the connecting ring is connected to the gravity sensing device through the connecting line. A sand inlet hole is also provided on the top of the sand storage box, and the sand inlet hole is connected to the sand inlet channel. The sand inlet channel is a bullhorn-shaped channel, the inlet of the sand inlet channel is square and communicated with the sand inlet port, and the end of the sand inlet channel extends into the sand storage box through the sand inlet hole; in the initial state, the end of the sand inlet channel contacts the bottom of the sand storage box, and after the sand storage box starts to enter the sand, the distance between the end of the sand inlet channel and the bottom of the sand storage box is enlarged, and when the sand storage box is full of sand, the end of the sand inlet channel is separated from the sand storage box; The interior of the sand inlet channel is smooth and has a slope. An airflow attenuation synapse is arranged on the inner wall of the sand inlet channel, and the airflow attenuation synapse is used to prevent sand from flowing back and escaping.

2. The sliding type automatic weighing sand collector according to claim 1 is characterized in that: The base includes a mounting surface and a column, the mounting surface is mounted on the top of the column, and the column is used to be inserted into soil or concrete; a plurality of reserved holes are opened on the mounting surface in different directions, each of the reserved holes is used to install a sand collector housing, and a mounting column is provided at the bottom of the sand collector housing, and the mounting column is installed in the reserved hole.

3. The sliding type automatic weighing sand collector according to claim 2 is characterized in that: The installation surface is provided with the reserved holes in 8 directions.

4. The sliding type automatic weighing sand collector according to claim 1, characterized in that: The top and bottom of the sliding rod are respectively connected to the top and bottom of the inner shell of the sand collector, and the gravity sensing device is located directly above the sand storage box.

5. The sliding type automatic weighing sand collector according to claim 1, characterized in that: The sand inlet is arranged on the front side of the sand collector housing, and a dustproof net is arranged on the back side of the sand collector housing. The dustproof net can let air in and prevent sand from passing through; a side door is arranged on the side of the sand collector housing.

6. The sliding type automatic weighing sand collector according to claim 1, characterized in that: The sand inlet is arranged at four levels from bottom to top, and the four levels of the sand inlet are 5cm, 15cm, 30cm and 50cm above the ground respectively; the number of the sand inlet channels, the sand storage boxes, the sliding rods, the gravity sensing devices and the connecting lines corresponds to the number of the sand inlets.

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