Rainwater collecting device and collecting method for small arbor

Abstract

The invention discloses a small arbor rainwater collecting device and method, relates to the technical field of tree rainwater collecting devices, and provides a small arbor rainwater collecting device which comprises a first collecting structure arranged on a trunk in a sleeving mode and used for collecting stem flow. The second collecting structure is used for collecting canopy intercepted rain and penetrating rain, and the first collecting structure is connected with the second collecting structure; the second collecting structure comprises a collecting part which is arranged on the trunk in a sleeving mode and can move along with wind, and a water storage part which is located on one side of the collecting part and connected with the collecting part. According to the small arbor rainwater collecting device, canopy interception rain, penetrating rain and stalk flow of small arbor can be collected through the same device, rainwater from three different sources is collected, and time and labor are saved.

Description

Technical Field

[0001] The invention relates to the technical field of tree rainwater collection devices, and in particular to a rainwater collection device for small trees and a collection method. Background Art

[0002] Canopy interception is an important part of the forest hydrological cycle and has a significant impact on soil water balance, surface runoff formation, and river runoff regulation. Soil and water conservation forests intercept precipitation through the canopy, change the water transmission process, reduce surface runoff, and prevent soil erosion. The relationship between canopy interception and precipitation is complex. Canopy interception is affected and restricted by many factors such as precipitation characteristics and vegetation characteristics. The canopy structure, branches, leaf area, and biomass of plants can all change the amount of precipitation interception.

[0003] Throughfall refers to the rainfall outside the forest (also known as total forest precipitation) minus the canopy interception and trunk runoff. It is an important component of forest precipitation redistribution. The water conservation efficiency of the forest depends to a large extent on the actual throughfall that enters the forest. Therefore, accurate measurement of forest throughfall is of great significance to the study of water balance of forest ecosystems.

[0004] Among the various components of forest hydrology, the role of trunk runoff is only a small part and is often overlooked in quantitative studies, but the role of trunk runoff in forest ecosystems cannot be ignored. At present, the research on trunk runoff mainly focuses on two aspects: quality and quantity. Quantity refers to the proportion and role of trunk runoff in the water balance of the entire forest ecosystem; quality refers to the chemical characteristics of trunk runoff (washing of dry sediment on the surface of trees and replacement of forest canopy, etc.). Most studies have shown that trunk runoff exhibits strong acidification and nutrient enrichment.

[0005] Existing collection devices are time-consuming and labor-intensive, and have various problems. In addition, no device can collect these three types of runoff rainfall at the same time, which reduces efficiency.

[0006] The current collection device mainly has the following problems: It is easy to leak. The rainwater flowing down from the tree trunk cannot be collected well and easily leaks out from the gap between the rainwater collecting tube and the tree trunk, thus causing inestimable errors. The opening of the rainwater collection hose of the traditional device is too large, which easily collects the part that does not belong to the tree trunk runoff (i.e., rainfall in the forest), thus causing unnecessary errors; It requires a lot of manpower, material resources and financial resources. After each rain, researchers have to go to the field sample plots to manually measure the rainfall outside the forest, rainfall inside the forest, and tree trunk runoff. It is also impossible to directly give the canopy interception amount, which is very time-consuming and labor-intensive. The existing devices have poor temporal resolution / accuracy and can only measure tree trunk runoff over a long time scale. They cannot provide tree trunk runoff and canopy interception in any time period, which is not conducive to monitoring forest hydrological processes. In windy conditions, the collected data is inaccurate and some rainwater cannot be collected.

[0007] The disclosure (announcement) number is (CN 117405835 A) and a test device and method for monitoring canopy interception of arbor vegetation, comprising a test box, a partition is arranged inside the test box, the partition is connected to a sleeve, the top of the sleeve has a top opening for the trunk of the vegetation to be tested to pass through, the diameter of the top opening is larger than the set value of the trunk diameter of the vegetation to be tested so that only branch runoff rainwater can enter the sleeve, the bottom of the sleeve has a bottom opening, the bottom opening is provided with a seal to be sealed and connected to the trunk of the vegetation to be tested, a penetrating rainwater collection component is arranged on the outer periphery of the sleeve, the bottom end of the sleeve is connected to a first rainfall monitoring element through a water pipe, the penetrating rainwater collection component is connected to a second rainfall monitoring element through a water pipe, a rainfall nozzle is arranged on the top of the test box, and the rainfall nozzle is connected to a water supply mechanism. The test device of the present invention has accurate measurement results and strong applicability.

[0008] However, the test device of the application cannot be adjusted according to the wind direction when there is wind, so that some rainwater cannot be collected, resulting in inaccurate collected data, which further limits the applicability of the test device of the application. Summary of the invention

[0009] In response to the above-mentioned problems, the present invention aims to provide a rainwater collection device and collection method for small trees, which can use one device to collect rainwater from three different sources: canopy intercepted rain, penetrating rain and stem flow, thereby saving time and effort, and in windy conditions, the position can be adjusted according to the wind direction, making the collected data more accurate.

[0010] The main idea of ​​the technical solution adopted by the present invention is: by using the same set of devices, it is possible to collect canopy interception, through-rain and trunk runoff, and these three parts of rainfall can be collected in different time periods and sections, which can be collected for both long-term and short-term periods; and water storage tanks corresponding to the three parts of rainfall are set, and valves and water tanks are designed on the water storage tanks to facilitate collection; when it rains, the water tank valves of the trunk runoff and through-rain are opened to measure the trunk runoff and through-rain, and a cap-shaped device is added to the trunk runoff collection device to prevent through-rain from mixing; when the rain stops, all valves are opened, and a hand-crank or vibration device is used to help collect the canopy interception. The collection situation is observed in the water tanks of each collection device.

[0011] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A rainwater collection device for small trees, comprising a first collection structure sleeved on a tree trunk for collecting trunk runoff, characterized in that it also comprises a second collection structure located below the first collection structure for collecting canopy intercepted rain and penetrating rain, wherein the first collection structure is connected to the second collection structure; The second collecting structure includes a collecting part which is sleeved on the tree trunk and can adjust its position according to the wind direction, and a water storage part which is located on one side of the collecting part and connected to the collecting part.

[0012] Furthermore, the collecting part includes a collecting component sleeved on the tree trunk, and a supporting component located below the collecting component for supporting the collecting component, and the collecting component is connected to the supporting component.

[0013] Furthermore, the collecting component includes a drainage cover sleeved on the tree trunk, and a storage component located on the back of the drainage cover, one end of the storage component is connected to the back of the drainage cover, and the other end is connected to the supporting component.

[0014] Furthermore, the storage assembly includes a folding frame connected to the back of the drainage cover, a T-shaped connector is connected to the folding frame, and one end of the folding frame is connected to the supporting component.

[0015] Furthermore, the folding frame includes a frame No. 1 and a frame No. 2 respectively connected along the two ends of the T-shaped connecting piece in the horizontal direction, and also includes a frame No. 3 connected along one end of the T-shaped connecting piece in the vertical direction. The other ends of the frame No. 1 and the frame No. 2 are connected to the back of the drainage cover, and the other end of the frame No. 3 is connected to the supporting component.

[0016] Furthermore, the supporting component includes a clamping assembly connected to the lower end of the drainage cover, and an elastic connecting assembly located outside the clamping assembly, and the elastic connecting assembly is connected to the other end of the No. 3 frame.

[0017] Furthermore, the clamping assembly is a special-shaped sleeve, the interior of the special-shaped sleeve includes an upper cavity connected to the drainage cover, and a lower clamping cavity connected to the upper cavity, the elastic connection assembly is connected to the outer wall of the lower clamping cavity, and two water collection grooves are also opened inside the lower clamping cavity.

[0018] Furthermore, the elastic connection assembly includes a plurality of No. 1 elastic parts, one end of which is connected to the outer wall of the special-shaped sleeve and the other end is connected to the bottom of the drainage cover, and a plurality of No. 2 elastic parts, one end of which is connected to the bottom of the special-shaped sleeve and the other end is connected to the No. 3 skeleton. Each of the No. 1 elastic parts is arranged perpendicular to the corresponding No. 2 elastic parts.

[0019] Furthermore, the water storage part includes a No. 1 water storage tank connected to a No. 1 collection structure, and a No. 2 water storage tank and a No. 3 water storage tank respectively connected to two water collecting troughs.

[0020] The present invention also discloses a collection method of a rainwater collection device for small trees, which is characterized by comprising the following steps: Step 1: Install the No. 1 collection structure and the No. 2 collection structure on the trunk of the small tree respectively, and connect the No. 1 collection structure and the No. 2 collection structure to the corresponding water storage tanks respectively; Step 2: After installation, expand and secure the drainage cover by folding the frame; Step 3: When it rains, the No. 1 collection structure collects tree trunk runoff, and the No. 2 collection structure collects throughfall, and the tree trunk runoff is collected in the No. 1 water storage tank, and the throughfall is collected in the No. 2 water storage tank. After the rain stops, the tree crown is shaken so that the No. 2 collection structure collects the canopy intercepted rain, and the canopy intercepted rain is collected in the No. 3 water storage tank.

[0021] The beneficial effects of the present invention are as follows: Compared with the prior art, the improvements of the present invention are: By using the same device, it is possible to collect rainwater from three different sources: canopy interception rain, throughfall rain and stem flow from small trees, saving time and effort; By elastically connecting the drainage cover and the special-shaped sleeve through the first elastic member and the second elastic member, when the wind blows the tree crown to swing, the drainage cover will also swing with the wind direction, that is, when there is wind, the tree crown and the drainage cover can swing at the same frequency, so that the penetrating rain is always within the receiving range of the drainage cover, and then most of the penetrating rain can be collected by the drainage cover, making the collected data more accurate. And because the drainage cover and the special-shaped sleeve are elastically connected, the drainage cover can automatically return to its original position by the elastic force of the spring when the wind stops. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The figure is a front view of the overall structure of the rainwater collection device for small trees of the present invention.

[0023] Figure 2 It is a schematic diagram of the overall structure of the rainwater collection device for small trees of the present invention from a top view.

[0024] Figure 3 This is a schematic diagram of the overall structure of the rainwater collection device for small trees of the present invention, with the water storage part removed, when viewed from a bottom perspective.

[0025] Figure 4 This is an enlarged view of part A of the rainwater collection device for small trees of the present invention.

[0026] Figure 5 This is an enlarged view of part B of the rainwater collection device for small trees of the present invention.

[0027] Figure 6It is a three-dimensional schematic diagram of the collection structure No. 1 of the rainwater collection device for small trees of the present invention.

[0028] Figure 7 It is a front view of the No. 1 collecting structure of the rainwater collecting device for small trees of the present invention.

[0029] Figure 8 It is a cross-sectional view taken along the AA direction of the rainwater collection device for small trees of the present invention.

[0030] Fig. 9 The present invention is a schematic diagram of the structure of the elastic connection assembly of the rainwater collection device for small trees.

[0031] Fig.10 The present invention is a schematic diagram of the water storage structure of the rainwater collection device for small trees.

[0032] Wherein: 1. trunk, 2. drainage cover, 3. upper sleeve, 4. lower sleeve, 5. No. 1 water collecting pipe, 6. No. 2 water collecting pipe, 7. No. 3 water collecting pipe, 8. No. 1 frame, 9. No. 2 frame, 10. No. 3 frame, 11. limit screw, 12. lower clamping cavity, 13. No. 1 elastic part, 14. No. 2 elastic part, 15. support platform, 16. No. 1 water collecting trough, 17. connecting rod, 18. No. 1 water storage tank, 19. No. 2 water storage tank, 20. No. 3 water storage tank, 21. outlet, 22. T-shaped connecting part, 23. No. 2 water collecting trough, 24. No. 3 water collecting trough, 25. No. 2 extension column, 26. through hole, 27. No. 1 extension column, 28. upper cavity. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0034] Small trees are trees with a height of 5 to 9 meters, with a distinct trunk, many branches and an upright plant shape. Branches only appear above breast height, and the tree height is above 5 meters. Its leaf shape varies, some are ovate or diamond-shaped ovate, with a pointed tip. The leaves may not be lobed or have three lobes at the top, and the lobes may be rounded or pointed. The flowers are large, some are bell-shaped, and the flowering period is usually long. There are many types of small trees, such as coleus, agave, cordyline, bamboo banana, philodendron, schefflera, pomegranate, etc.

[0035] Canopy interception refers to the amount of rainfall intercepted by plant leaves and stems or other ground covers. In a rainfall, the amount of canopy interception does not increase indefinitely with the increase of rainfall, but when the rainfall reaches a certain value, the canopy interception will reach saturation. The intensity of rainfall will also affect the saturation time of the canopy. The greater the rainfall intensity, the faster the canopy will be saturated. In addition, wind is also an important factor affecting canopy interception. It can reduce the canopy interception by blowing, and it can also prolong the time it takes for the canopy to reach saturation by increasing evaporation.

[0036] The canopy intercepted rain is consumed by evaporation for a relatively long period of time after rainfall. Only rainfall that exceeds its interception capacity can reach the ground, forming infiltration, filling or runoff. It is of great significance to reduce soil erosion. After being intercepted by the canopy, the excess rainfall enters the forest ecosystem in the form of trunk runoff and penetrating rainfall, participating in the hydrological cycle of the entire ecosystem.

[0037] Trunk runoff refers to the part of rainwater that flows along the trunk through leaves and branches to the ground, also known as dry flow or stem flow. It is a component of in-forest rainfall after atmospheric rainfall is intercepted and redistributed by the forest canopy, and is an important component of forest canopy water balance. Although trunk runoff usually accounts for the smallest proportion of water balance, its impact on ecohydrological processes cannot be ignored.

[0038] Tree runoff can accurately input water into the root system under the tree, almost without soil erosion, and has very important ecological significance. In addition, tree runoff is affected by many factors, including rainfall, tree shape, slope direction, relative height, topography of the catchment area, watershed characteristic factors, average slope, surface vegetation conditions, and soil characteristics.

[0039] Throughfall refers to the precipitation that directly passes through forest gaps or drips from leaves or branches in the canopy to the forest floor. It is an important component of forest precipitation redistribution, and its amount depends largely on the canopy porosity, rainfall intensity, and the evaporation rate of water on leaves or branches. Throughfall is of great significance to the study of water balance in forest ecosystems because it is directly related to the water conservation efficiency of forests.

[0040] There is a good linear relationship between throughfall and rainfall outside the forest (i.e., total precipitation in the forest). When the rainfall is small, the proportion of throughfall increases with the increase of rainfall; however, when the rainfall increases to a certain extent, the proportion of throughfall tends to be stable. The throughfall rate will also have an impact on the local environment. For example, a high throughfall rate may lead to increased erosion of the ground by rainfall, forming a large surface runoff.

[0041] Existing devices have poor temporal resolution / accuracy and can only measure trunk runoff over long time scales. They cannot give trunk runoff and canopy interception for any time period, which is not conducive to monitoring forest hydrological processes. In addition, in windy conditions, the collected data is inaccurate and some rainwater cannot be collected.

[0042] In order to solve the above problems, this application discloses a rainwater collection device for small trees. For the specific structure, please refer to Figure 1-Figure 10 The rainwater collection device for small trees includes a No. 1 collection structure mounted on the trunk for collecting trunk runoff, and a No. 2 collection structure located below the No. 1 collection structure for collecting canopy intercepted rain and penetrating rain, wherein the No. 1 collection structure is connected to the No. 2 collection structure; The No. 1 collection structure is a double-layer sleeve structure sleeved on the tree trunk. The double-layer sleeve is divided into two halves, which are connected by snap-fitting for easy installation and disassembly. The double-layer sleeve structure includes an upper sleeve 3 and a lower sleeve 4 connected to the upper sleeve 3 by multiple connecting rods 17, wherein a 2-5 cm gap is left between the upper sleeve 3 and the trunk 1, so that the runoff of the trunk 1 has enough space to pass through the upper sleeve 3 and fall into the lower sleeve 4, the lower sleeve 4 fits tightly against the trunk, and the part inside the lower sleeve 4 that fits tightly against the trunk 1 is made of elastic rubber material, which is not only suitable for trunks of different sizes, but also can avoid damage to the trunk. It should be noted that a No. 1 water collecting groove 16 is also provided inside the lower sleeve 4, and the No. 1 water collecting groove 16 is connected to the No. 1 water storage tank 18 through a No. 1 water collecting pipe 5, and the No. 1 water collecting pipe 5 passes through the through hole 26 on the drainage cover 2 and is connected to the No. 1 water storage tank 18. In order to allow the trunk runoff to be better collected at the No. 1 water collecting groove 16, the inner wall of the lower sleeve 4 is sloped downward until it fits tightly with the trunk 1, and the No. 1 water collecting groove 16 is located at the lowest point of the slope, which is convenient for collecting the trunk runoff flowing down the slope.

[0043] In order to make the collection results of trunk runoff more accurate, the present application also sets the outer shell of the upper sleeve 3 to be a brim shape slanting downward, and the downward coverage area of ​​the outer shell of the upper sleeve 3 is larger than the area of ​​the lower sleeve 4. Therefore, the penetrating rain and canopy intercepted rain outside the trunk runoff will slide from the outer shell of the upper sleeve 3 to the No. 2 collection structure.

[0044] The second collection structure includes a collection part which is sleeved on the tree trunk 1 and can move with the wind, and a water storage part which is located on one side of the collection part and connected to the collection part; The collecting part includes a collecting component which is sleeved on the trunk 1 and can collect canopy intercepted rain and penetrating rain at the same time, and a supporting component which is located below the collecting component and can move with the wind, and the collecting component is connected to the supporting component.

[0045] More specifically, the collecting component includes a drainage cover 2 mounted on the trunk 1, and a storage component located on the back of the drainage cover 2. One end of the storage component is connected to the back of the drainage cover 2, and the other end is connected to the supporting component. The drainage cover 2 is made of waterproof cloth, and the drainage cover 2 is an umbrella-shaped structure with an opening facing upward. For easy installation, the drainage cover 2 is made of two pieces of waterproof cloth. A surplus is provided in the middle of the two waterproof cloths, and the surplus is spliced ​​to the back of the drainage cover 2 and connected by bolts. For details, please refer to Figure 3 The diameter of the opening of the drainage cover 2 is larger than the diameter of the longest part of the crown of the small tree, so that the intercepted rain from the crown of the small tree can be collected to the maximum extent, making the collected data more accurate.

[0046] When the drainage cover 2 is not in use, the drainage cover 2 can also be folded up for easy storage. Therefore, the present application also provides a storage assembly on the back of the drainage cover 2, and the storage assembly includes a folding frame connected to the back of the drainage cover 2, and a T-shaped connector 22 is connected to the folding frame, and one end of the folding frame is connected to the support component. The folding frame includes a first frame 8 and a second frame 9 respectively hingedly connected along the lateral ends of the T-shaped connector 22, and also includes a third frame 10 hingedly connected along one vertical end of the T-shaped connector 22. The first frame 8 and the second frame 9 are sewn and connected to the back of the drainage cover 2, and the other end of the third frame 10 is hingedly connected to the support component.

[0047] The connection method between the folding frame and the drainage hood 2 and the folding principle of the drainage hood 2 can all refer to the connection method between the umbrella cloth and the umbrella frame and the folding principle of the folding umbrella. However, unlike the folding umbrella, the folding frame of the present application does not have a button control when folding. Instead, a limiting groove is opened in the middle of the vertical end of the T-shaped connecting piece 22, and a limiting screw 11 is inserted in the limiting groove for fixing so that the drainage hood 2 after expansion remains in the expanded state. If the drainage hood 2 needs to be folded, the limiting screw 11 can be removed from the limiting groove to fold the drainage hood 2 and the No. 1 frame 8, No. 2 frame 9 and No. 3 frame 10 which are respectively hingedly connected to the three end points of the T-shaped connecting piece 22.

[0048] It should be noted that the T-shaped connector 22, the first frame 8, the second frame 9, the third frame 10, and the limiting screw 11 are all made of stainless steel.

[0049] In order to support the drainage hood 2, the present application also provides a supporting component below the drainage hood 2, and the supporting component includes a clamping assembly connected to the lower end of the drainage hood 2, and an elastic connecting assembly located outside the clamping assembly, and the elastic connecting assembly is connected to the other end of the No. 3 frame 10.

[0050] The clamping assembly is a special-shaped sleeve, which includes an upper cavity 28 connected to the drainage cover 2 through a connecting tube made of elastic material, and a lower clamping cavity 12 integrally connected to the upper cavity 28. The elastic connecting assembly is connected to the outer wall of the lower clamping cavity 12. Specifically, the outer wall of the lower clamping cavity 12 is integrally formed with a support platform 15, and the elastic connecting assembly is connected to the support platform 15.

[0051] Two water collecting grooves are also provided inside the lower clamping cavity 12 , namely a No. 2 water collecting groove 23 and a No. 3 water collecting groove 24 .

[0052] Further description, the elastic connection assembly includes a plurality of No. 1 elastic parts 13 connected to the support platform 15 at one end and to the bottom of the drainage cover 2 at the other end, and a plurality of No. 2 elastic parts 9 connected to the bottom of the special-shaped sleeve at one end and to the No. 3 skeleton 10 at the other end. The No. 1 elastic part 13 and the No. 2 elastic part 14 are arranged perpendicular to each other.

[0053] The two ends of the No. 1 elastic member 13 and the No. 2 elastic member 14 connected to them are fixedly connected. For example, one end of multiple No. 1 elastic members 13 is welded to the support platform 15, and the other end is welded to multiple No. 1 extension columns 27 extending from the bottom of the drainage cover 2; one end of multiple No. 2 elastic members 14 is welded to multiple No. 2 extension columns 25 extending from the bottom of the special-shaped sleeve, and the other end is welded to the hinge axis of the No. 3 frame 10.

[0054] The first elastic member 13 and the second elastic member 14 are both springs. Since the first elastic member 13 is the main elastic support for the drainage cover 2, and the second elastic member 14 is the auxiliary elastic support for the drainage cover 2, the elastic force of the first elastic member 13 is greater than the elastic force of the second elastic member 14, and can be specifically set according to the actual size of the drainage cover 2, which will not be described in detail here. In addition, the number of the first elastic member 13 and the number of the second elastic member 14 correspond to each other, both are multiple, and are evenly arranged around the special-shaped sleeve.

[0055] When it rains, in the case of wind, the tree crown will swing with the wind. If the drainage cover 2 is fixed to the trunk, when the tree crown swings, the penetrating rain may also exceed the receiving range of the drainage cover 2. Then, part of the penetrating rain that exceeds the receiving range of the drainage cover 2 cannot be collected, which will lead to inaccurate collection data. Therefore, the present application elastically connects the drainage cover 2 with the special-shaped sleeve through the first elastic member 13 and the second elastic member 14, so that when the wind blows the tree crown to swing, the drainage cover 2 will also swing with the wind direction of the wind, that is, in the case of wind, the tree crown and the drainage cover 2 can swing at the same frequency, so that the penetrating rain is always within the receiving range of the drainage cover 2, and then most of the penetrating rain can be collected by the drainage cover 2, so that the collection data is more accurate. And due to the elastic connection between the drainage cover 2 and the special-shaped sleeve, the drainage cover 2 can automatically return to its original position by the elastic force of the spring when the wind stops.

[0056] It should also be noted that after the rain stops, there will still be some rainwater remaining on the tree crown, that is, canopy intercepted rain, and this part of rainwater also needs to be collected in the drainage hood 2. Therefore, after the rain stops, the canopy intercepted rain can be collected by manually shaking the small trees with thinner trunks 1, or by using a tree shaker to shake the small trees with thicker trunks 1 to collect the canopy intercepted rain.

[0057] When the rainwater is collected, all three types of rainwater enter the water storage part, wherein the water storage part includes a No. 1 water tank 18 connected to the No. 1 collection structure, and a No. 2 water tank 23 and a No. 3 water tank 24 respectively connected to the two water collecting grooves inside the lower clamping cavity 12. The rainwater in the No. 1 collection structure will enter the No. 1 water tank 18 through the No. 1 water collecting pipe 5, and the No. 2 water collecting pipe 6 and the No. 3 water collecting pipe 7 will respectively enter the No. 2 water tank 19 and the No. 3 water tank 20 connected to the corresponding ones. Then the researchers will observe the rainwater collection situation in each water tank, and they can also open the outlet of the water tank to take away the collected rainwater for research.

[0058] It should be further explained that, since the canopy intercepted rain and the penetrating rain share a drainage cover 2, and the No. 2 water collecting groove 23 and the No. 3 water collecting groove 24 corresponding to the two are also adjacently arranged inside the lower clamping cavity 12, therefore, in order to enable the canopy intercepted rain and the penetrating rain to be collected separately, the present application also provides a valve and an outlet 21 on each water storage tank. When the canopy intercepted rain needs to be collected after the penetrating rain is collected, the valve of the No. 2 water storage tank 19 can be closed to prevent the canopy intercepted rain from entering the No. 2 water storage tank 19. However, due to Since no valves are provided at the No. 2 water collecting trough 23 and the No. 3 water collecting trough 24, a small portion of the canopy intercepted rain may still enter the No. 2 water collecting pipe 6. Therefore, when calculating the flow of the canopy intercepted rain, the penetrating rain in the No. 2 water storage tank 19 with the valve closed can be first emptied from the outlet 21, and then the valve can be opened to allow a small portion of the canopy intercepted rain in the No. 2 water collecting pipe 6 to enter the No. 2 water storage tank 19. Then, when calculating the flow of the canopy intercepted rain, the small portion of the canopy intercepted rain in the No. 2 water storage tank 19 can be taken into account.

[0059] The collection method of the rainwater collection device using the small tree of the present application comprises the following steps: Step 1: Install the No. 1 collection structure and the No. 2 collection structure on the trunk 1 of the small tree respectively, and connect the No. 1 collection structure and the No. 2 collection structure to the corresponding water storage tanks respectively; Step 2: After installation, the drainage cover 2 is opened and fixed by folding the frame; Step 3: When it rains, the No. 1 collection structure collects tree trunk runoff, and the No. 2 collection structure collects throughfall, and the tree trunk runoff is collected in the No. 1 water storage tank 18, and the throughfall is collected in the No. 2 water storage tank 19. After the rain stops, the tree crown is shaken so that the No. 2 collection structure collects the canopy intercepted rain, and the canopy intercepted rain is collected in the No. 3 water storage tank 20. Example 1

[0060] In the absence of wind, when using the rainwater collector of the present application, firstly, the No. 1 collection structure and the No. 2 collection structure are both installed and connected to the trunk 1 of the small tree that needs to collect rainwater, and the No. 1 collection structure and the No. 2 collection structure are both connected to the corresponding water storage tank, and then the drainage cover 2 is opened, so that the drainage cover 2 is in an open state, and the valves of the No. 1 water storage tank 18 and the No. 2 water storage tank 19 are opened, and the valve of the No. 3 water storage tank 20 is closed. Finally, just wait for it to rain. When it rains, the No. 1 collection structure collects the trunk runoff, and the No. 2 collection structure collects the penetrating rain. After the rain stops, the No. 1 collection structure and the No. 2 collection structure have finished collecting, and the valves on the No. 1 water storage tank 18 and the No. 2 water storage tank 19 are closed. Then, by shaking the trunk 1, the No. 2 collection structure collects the canopy intercepted rain into the No. 3 water storage tank 20. Example 2

[0061] The collection method and principle of this embodiment are the same as those of embodiment 1, the only difference is that when it rains, in the case of wind, the tree crown will swing with the wind. If the drainage cover 2 is fixed to the trunk, the tree crown will swing, so that the penetrating rain may also exceed the receiving range of the drainage cover 2, so that the part of the penetrating rain that exceeds the receiving range of the drainage cover 2 cannot be collected, which will lead to inaccurate collection data. Therefore, the present application elastically connects the drainage cover 2 with the special-shaped sleeve through the first elastic member 13 and the second elastic member 14, so that when the wind blows the tree crown to swing, the drainage cover 2 will also swing with the wind direction, that is, in the case of wind, the tree crown and the drainage cover 2 can swing at the same frequency, so that the penetrating rain is always within the receiving range of the drainage cover 2, and then most of the penetrating rain can be collected by the drainage cover 2, so that the collection data is more accurate. And due to the elastic connection between the drainage cover 2 and the special-shaped sleeve, the drainage cover 2 can automatically return to its original position by the elastic force of the spring when the wind stops.

[0062] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rainwater collection device for small trees, comprising a first collection structure sleeved on a tree trunk (1) for collecting trunk runoff, characterized in that: It also includes a No. 2 collecting structure located below the No. 1 collecting structure and used to collect canopy intercepted rain and through-rain, wherein the No. 1 collecting structure is connected to the No. 2 collecting structure; The second collection structure comprises a collection portion which is sleeved on the tree trunk (1) and can be adjusted in position according to the wind direction, and a water storage portion which is located on one side of the collection portion and connected to the collection portion.

2. A rainwater collection device for small trees according to claim 1, characterized in that: The collecting part comprises a collecting component sleeved on the tree trunk (1), and a supporting component located below the collecting component and used to support the collecting component, wherein the collecting component is connected to the supporting component.

3. A rainwater collection device for small trees according to claim 2, characterized in that: The collecting component comprises a drainage cover (2) sleeved on the tree trunk, and a storage component located on the back of the drainage cover (2); one end of the storage component is connected to the back of the drainage cover (2), and the other end is connected to the supporting component.

4. A rainwater collection device for small trees according to claim 3, characterized in that: The storage assembly comprises a folding frame connected to the back of the drainage cover (2), a T-shaped connector (22) is connected to the folding frame, and one end of the folding frame is connected to the supporting component.

5. A rainwater collection device for small trees according to claim 4, characterized in that: The folding frame comprises a first frame (8) and a second frame (9) respectively connected along two ends of a T-shaped connecting piece (22) in the horizontal direction, and also comprises a third frame (10) connected along one end of the T-shaped connecting piece (22) in the vertical direction, the other ends of the first frame (8) and the second frame (9) being connected to the back side of the drainage cover (2), and the other end of the third frame (10) being connected to a supporting component.

6. A rainwater collection device for small trees according to claim 5, characterized in that: The support component comprises a clamping assembly connected to the lower end of the drainage cover (2), and an elastic connection assembly located outside the clamping assembly, wherein the elastic connection assembly is connected to the other end of the third frame (10).

7. A rainwater collection device for small trees according to claim 6, characterized in that: The clamping assembly is a special-shaped sleeve, the interior of the special-shaped sleeve comprises an upper cavity (28) connected to the drainage cover, and a lower clamping cavity (12) connected to the upper cavity (28), the elastic connection assembly is connected to the outer wall of the lower clamping cavity (12), and the interior of the lower clamping cavity (12) is also provided with two water collecting grooves.

8. A rainwater collection device for small trees according to claim 7, characterized in that: The elastic connection assembly comprises a plurality of No. 1 elastic members (13) connected at one end to the outer wall of the special-shaped sleeve and at the other end to the bottom of the drainage cover (2), and a plurality of No. 2 elastic members (14) connected at one end to the bottom of the special-shaped sleeve and at the other end to the No. 3 frame (10), wherein each No. 1 elastic member (13) is arranged perpendicularly to the corresponding No. 2 elastic member (14).

9. A rainwater collection device for small trees according to claim 8, characterized in that: The water storage part comprises a No. 1 water storage tank (18) connected to a No. 1 collection structure, and a No. 2 water storage tank (19) and a No. 3 water storage tank (20) respectively connected to two water collection grooves.

10. A method for collecting rainwater from a small tree, implemented by using the rainwater collecting device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Install the first collection structure and the second collection structure on the trunk (1) of the small tree respectively, and connect the first collection structure and the second collection structure to the corresponding water storage tanks respectively; Step 2: After installation, the drainage cover (2) is opened and fixed by folding the frame; Step 3: When it rains, the No. 1 collection structure collects tree trunk runoff, and the No. 2 collection structure collects throughfall, and the tree trunk runoff is collected in the No. 1 water storage tank (18), and the throughfall is collected in the No. 2 water storage tank (19). After the rain stops, the tree crown is shaken so that the No. 2 collection structure collects the canopy intercepted rain, and the canopy intercepted rain is collected in the No. 3 water storage tank (20).

Images