Birch juice collecting equipment and collecting method thereof

Abstract

The invention discloses birch juice collecting equipment and a collecting method thereof, and relates to the field of collecting equipment. The birch juice collecting device solves the problem that existing equipment cannot conduct large-scale and high-efficiency birch juice collecting in a limited collecting period. The turbidity sensor is mounted at the bottom of the cabin body; the collection branch hose is connected with the collection hole and the liquid gate pipeline system; the valve pipeline system is mounted on the cabin cover; the tree end flow sensor module is installed on a birch with the smallest diameter in a birch area to be collected or a branch representing the minimum collection amount. The method comprises the following steps: 1, collecting data in a birch forest area; 2, drilling birches; 3, connecting and debugging birch juice collecting equipment; 4, performing vacuum degree control on the collection cabin; 5, after the vacuum degree in the cabin body reaches the set vacuum collection threshold value, the air exhaust servo valve is closed; 6, starting to collect birch juice; 7, monitoring the flow, the vacuum degree and the liquid level; 8, birch juice collection is completed; ninthly, the birch juice is conveyed into a main collecting cabin under the mountain through the multiple collecting cabins. The device is used for collecting the birch juice.

Description

Technical Field

[0001] The present invention relates to the field of collection equipment, and in particular to birch sap collection equipment and a collection method thereof, which are used for intelligent collection of birch sap. Background Art

[0002] Every spring is the period when birch trees turn green and fill with grain, usually from mid-to-late April to early May, and lasts about 15 to 20 days. At this time, the birch sap flows most actively, and the birch trees can be collected continuously after the sap is produced. The conventional way to extract birch sap is to go up the mountain manually and drill holes in the birch trees in the birch forest area. The holes need to meet the corresponding scientific and standard requirements for drilling angles, depths and apertures. The birch sap is then drawn out through a drainage tube and collected drop by drop. The drawn birch sap is generally collected in bags or bottles. Finally, the collected birch sap is carried back manually.

[0003] This manual method of collecting birch sap is not only very inefficient in collecting birch sap, but also unable to effectively collect birch sap from large birch forests during the optimal collection period.

[0004] In order to improve the efficiency of birch sap collection, the utility model patent with announcement number CN221178733U is named as a birch sap quantitative collection device. The device is equipped with a base plate, universal wheels and a handle. The base plate can support the collection bucket and move flexibly. When the collection bucket is full of birch sap, the collection bucket can also be flexibly moved through the base plate and universal wheels. Through a liquid level sensor, a normally open solenoid valve and a controller, when the birch sap level in the collection bucket rises to a certain height, the liquid level sensor is triggered and the controller drives the normally open solenoid valve to close. The birch sap collection process can be automatically stopped without manual intervention, saving labor. The collection hose and collection connector allow the birch sap to be reliably drained into the collection bucket, achieving good collection effect and high efficiency.

[0005] Although the above patent can improve the collection efficiency to a certain extent and eliminates the need for regular inspections by staff, it can only collect sap from one birch tree at a time and still cannot carry out large-scale and efficient birch sap collection within a limited collection period.

[0006] In summary, the existing birch sap collection equipment has the problem of being unable to carry out large-scale and efficient birch sap collection within a limited collection period. Summary of the Invention

[0007] The purpose of the present invention is to solve the problem that existing birch sap collecting equipment cannot carry out large-scale and high-efficiency birch sap collection within a limited collection period, and further provide a birch sap collecting equipment and a collection method thereof.

[0008] The technical solution of the present invention is: A birch sap collection device includes a cabin, a cabin cover, a turbidity sensor, a liquid gate pipeline system, an air valve pipeline system, a total collection cabin, a controller, a tree-end flow sensor module and multiple collection branch hoses. The cabin cover is sealed on the cabin to form a collection cabin, and the turbidity sensor is installed at the bottom liquid outlet end of the cabin; one end of each collection branch hose is inserted into the birch sap collection hole, and the other end is connected to the liquid gate pipeline system installed on the cabin cover, so as to realize large-scale collection of multiple birch trees at the same time; the air valve pipeline system is installed on the cabin cover and regulates the vacuum degree in the cabin to realize vacuum suction collection of birch sap; the tree-end flow sensor module is installed on the birch tree with the smallest diameter in the birch tree area to be collected or on the branch representing the minimum collection amount, so as to detect the safe collection amount of birch sap in the birch tree area to be collected; the controller is electrically connected to the turbidity sensor, the liquid gate pipeline system, the air valve pipeline system and the tree-end flow sensor module; the multiple collection cabins are connected to the total collection cabin at the foot of the mountain through a main transmission pipe.

[0009] Furthermore, the liquid gate pipeline system includes a liquid head end master control component and a liquid end master control component. The liquid head end master control component is installed at the head end of the collection branch hose, and the liquid end master control component is installed on the hatch cover and connected to the end of the collection branch hose; the liquid head end master control component includes a pipe body head end flow sensor and a pipe body head end liquid inlet servo valve, and the pipe body head end flow sensor and the pipe body head end liquid inlet servo valve are installed in sequence at the head end of the collection branch hose; the liquid end master control component includes a support plate, an elbow, a pipe body end flow sensor and a pipe body end liquid inlet servo valve, and the pipe body end flow sensor and the pipe body end liquid inlet servo valve are installed on the hatch cover through the support plate, one end of the elbow is connected to the pipe body end liquid inlet servo valve, and the other end of the elbow is sealed and connected to the hatch cover and communicated with the cabin body.

[0010] Furthermore, the liquid gate pipeline system also includes a filter, which is installed at the head end of the tree end flow sensor module.

[0011] Furthermore, the liquid gate pipeline system also includes a multi-way pipe, the other ends of the multiple collection branch hoses are connected to the branch pipe body of the multi-way pipe, and the main pipe of the multi-way pipe is connected to the liquid end main control component.

[0012] Furthermore, the valve pipeline system includes a vacuum pump, an exhaust servo valve and a vacuum transmission pipe, and the vacuum pump is connected to the exhaust servo valve installed on the hatch through the vacuum transmission pipe.

[0013] Furthermore, it also includes a liquid level sensor, which is vertically and sealedly inserted on the hatch cover, and a positioning end of the liquid level sensor extends into the cabin body.

[0014] Furthermore, it also includes a collection head, which includes a collection tube body and a connector. The collection tube body is a cylindrical cylinder, and the collection tube body has multiple rows of liquid inlet holes along its axial direction. The collection tube body and the connector are coaxially connected.

[0015] Preferably, the angle between two adjacent rows of liquid inlet holes is 90 degrees.

[0016] The present invention also provides a birch sap collection method, which comprises the following steps: Step 1: Collect data in the birch forest area: First, the diameter of birch trees in the birch forest area was collected by drone and a map was generated; Secondly, the collected data was analyzed and birch trees of different diameters were classified to determine and plan the collection area; Step 2: Drill holes into the birch trees in the collection area; Step 3: Connect and debug the birch sap collection equipment; Step 4: Start the vacuum pump and draw vacuum into the cabin through the vacuum servo valve and vacuum transmission pipe; Step 5: When the vacuum degree in the cabin reaches the set vacuum collection threshold, close the vacuum servo valve; Step 6: Open the liquid inlet servo valve at the first end of the tube and the liquid inlet servo valve at the end of the tube to start collecting birch sap; Under the action of negative pressure, birch sap first flows in through the multiple rows of liquid inlet holes on the collection head that is inserted into the birch sap collection hole, and then passes through the filter, the liquid inlet servo valve at the head end of the pipe body, the collection branch hose, the liquid inlet servo valve at the end of the pipe body and the elbow before entering the cabin; Step 7: Monitoring the safe collection amount of birch sap with the smallest diameter in the birch tree area to be collected, the vacuum degree in the cabin, and the liquid level of birch sap in the cabin through the controller; When the pressure inside the cabin fails to meet the threshold of the vacuum requirement, the vacuum servo valve is opened again to perform vacuuming; Step 8: When the liquid level reaches the set collection threshold or reaches the upper limit of the birch sap collection amount with the minimum diameter, close the liquid inlet servo valve at the head end of all the collection branch hoses to complete the birch sap collection in this area; Step 9: After completing the birch sap collection in multiple areas, multiple collection chambers transmit the birch sap to the main collection chamber at the foot of the mountain through the main transmission pipe, thereby completing large-scale birch sap collection.

[0017] Furthermore, in step nine, the birch sap is transmitted through the bottom liquid outlet of the cabin body and connected to the main transmission pipe, and in the process of transmitting the birch sap down the mountain, the turbidity of the birch sap is detected by a turbidity sensor.

[0018] Compared with the prior art, the present invention has the following effects: 1. The present invention can balance collection efficiency and collection safety, which is specifically reflected in: The invention sets a short board in the area to be collected, that is, a safe collection amount of birch sap with the smallest diameter in the birch tree area to be collected, thereby avoiding excessive collection of birch sap and affecting the life of the trees and collection in the next year.

[0019] Since the amount of birch sap that can be collected in a single time varies from birch trees of different diameters, if the amount of birch sap collected is too little, a year's collection opportunity will be wasted. If the amount of birch sap collected is limited to the birch trees with the smallest diameter in the collection area, it will not only ensure the amount of birch sap collected from the birch trees with the smallest diameter and the safety of the trees after collection, but also ensure the scientific collection of other birch trees in the entire collection area, and preserve the collection amount of thicker birch trees in the next year.

[0020] 2. The present invention can realize the centralized collection of birch sap and facilitate transportation, which is specifically embodied in: First, the present invention uses multiple collection hoses 4 to simultaneously vacuum multiple birch trees for high-efficiency collection. Depending on the diameter of the birch trees in the collection area, birch sap can be collected from at least 5-20 birch trees at the same time, achieving planned centralized collection.

[0021] Second point: The present invention can simultaneously transport multiple "birch sap collecting devices" to the mountain for collection, thereby realizing batch collection and production of birch sap. Multiple "birch sap collecting devices" can be transported to the mountain by a transport vehicle.

[0022] Third point: After the birch sap is collected, the birch sap in multiple collection chambers is sent down the mountain by the main transportation pipe. There is no need to manually transport the birch sap down the mountain, which reduces manpower and improves collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of the birch sap collecting device of the present invention when collecting birch sap from five birch trees at the same time; Figure 2 This is a schematic structural diagram of the birch sap collecting device of the present invention when collecting birch sap from 10 birch trees at the same time; Figure 3 This is a schematic diagram of the overall structure of the collection cabin formed by the hatch cover 2 of the present invention being sealed on the cabin body 1; Figure 4 yes Figure 3 The main view; Figure 5 yes Figure 4 Cross-sectional view along AA; Figure 6 1 is a schematic diagram of the three-dimensional structure of the collection head 13; Figure 7 yes Figure 6 The main view; Figure 8 yes Figure 7 Cross-sectional view along BB.

[0024] In the picture: Cabin body, 2. Hatch cover, 3. Turbidity sensor, 4. Collection distribution hose, 5. Controller, 6. Liquid gate pipeline system, 7. Support plate, 8. Elbow, 9. Valve pipeline system, 10. Vacuum pump, 11. Multi-way pipe, 12. Inlet servo valve, 13. Collection head, 14. Collection tube body, 15. Connector, 16. Liquid inlet hole, 17. Pressure sensor. DETAILED DESCRIPTION

[0025] Specific implementation method 1: Combination Figures 1 to 8 This embodiment includes a cabin 1, a hatch 2, a turbidity sensor 3, a liquid gate pipeline system 6, a valve pipeline system 9, a total collection cabin, a controller 5, a tree end flow sensor module and a plurality of collection branch hoses 4. The hatch 2 is sealed on the cabin 1 to form a collection cabin. The turbidity sensor 3 is installed at the bottom liquid outlet of the cabin 1. One end of each collection branch hose 4 is inserted into the birch sap collection hole, and the other end of each collection branch hose 4 is connected to the liquid gate pipeline system 6 installed on the hatch 2, so that multiple trees can be collected at the same time. Large-scale collection of birch sap; the valve pipeline system 9 is installed on the hatch 2 and regulates the vacuum level in the cabin 1 to achieve vacuum suction collection of birch sap; the tree-end flow sensor module is installed on the birch tree with the smallest diameter in the birch area to be collected or on the branch representing the minimum collection amount to detect the safe collection amount of birch sap in the birch area to be collected; the controller 5 is electrically connected to the turbidity sensor 3, the liquid valve pipeline system 6, the valve pipeline system 9 and the tree-end flow sensor module; multiple collection cabins are connected to the main collection cabin at the foot of the mountain through a main transmission pipe.

[0026] The birch sap collection device provided in this embodiment has a main structure of a collection chamber that can be moved to any position. With the collection chamber as the center, radiating outwards, it can collect birch sap from multiple birch trees simultaneously, improving collection efficiency. Moreover, the birch sap collection device of the present invention has a simple structure and low cost.

[0027] In this embodiment, an annular groove is formed on the outer circumferential sidewall of the upper portion of the cabin body 1. Multiple sealing rings are embedded in the annular groove. The hatch cover 2 is covered by the sealing rings and sealed by multiple buckles on the outside of the hatch cover 2 and the outside of the cabin body 1. This connection method is simple, reliable, and easy to assemble and disassemble.

[0028] This embodiment is equipped with a turbidity sensor 3, which detects the turbidity of birch sap in the main delivery pipe. When the collected birch sap becomes turbid, the collection chamber needs to be cleaned. To clean the collection chamber, a cleaning hole is provided in the cover 2. When not in use, this hole is sealed with a sealing plug. When cleaning is required, the cover plug is removed and the interior of the chamber 1 is cleaned using external cleaning equipment, ensuring the quality of the collected birch sap.

[0029] In actual use, the hatch cover 2 of this embodiment is further equipped with a pressure sensor 17 for measuring the pressure inside the hatch to ensure smooth vacuum extraction of birch sap.

[0030] The controller in this embodiment features an independent power supply, which supplies power to the entire collection chamber and monitors and displays the power supply and power levels of each module in real time. The vacuum pump 10 of the valve piping system 9 can be remotely controlled. Cables can be connected to an IoT control system to achieve wireless connectivity on the mountain. A temperature sensor is installed on the controller to measure the external air temperature and provide a reference for battery charging.

[0031] Specific implementation method 2: Combination Figures 3 to 5 To illustrate this embodiment, the liquid gate piping system 6 of this embodiment includes a liquid head end master control assembly and a liquid tail end master control assembly. The liquid head end master control assembly is installed at the head end of the collection branch hose 4, and the liquid tail end master control assembly is installed on the hatch 2 and connected to the tail end of the collection branch hose 4. The liquid head end master control assembly includes a pipe head end flow sensor and a pipe head end liquid inlet servo valve, which are sequentially installed at the head end of the collection branch hose 4; The liquid end master control assembly includes a support plate 7, an elbow 8, a flow sensor at the end of the tube body and a liquid inlet servo valve at the end of the tube body. The flow sensor at the end of the tube body and the liquid inlet servo valve at the end of the tube body are installed on the hatch 2 through the support plate 7. One end of the elbow 8 is connected to the liquid inlet servo valve at the end of the tube body, and the other end of the elbow 8 is sealed with the hatch 2 and communicated with the cabin 1.

[0032] With such an arrangement, the liquid gate pipeline system 6 in this embodiment is actually composed of a head-end master control component and a terminal master control component. The head-end master control component and the terminal master control component have the same structure and are located at the head and the terminal of the collection branch hose 4, respectively, to facilitate rapid opening and closing during collection. At the same time, it can also accurately measure the birch sap flow rate of the collection branch hose 4; the other components and connection relationships are the same as those in the first specific embodiment.

[0033] The support plate 7 in this embodiment is detachably mounted on the hatch cover 2 , and both ends of the elbow 8 are respectively processed with external threads, which are convenient for connection with the liquid inlet servo valve at the end of the pipe body, so that birch sap can be collected quickly.

[0034] Specific implementation method three: Combination Figures 3 to 5 To illustrate this embodiment, the liquid gate pipeline system 6 of this embodiment further includes a filter, which is installed at the head end of the tree-end flow sensor module.

[0035] In this configuration, the filter is mainly used to remove ice residue in the collected birch sap, thereby ensuring accurate measurement of the birch sap flow rate and quality of the collected birch sap. Other components and connection relationships are the same as those in the first or second embodiment.

[0036] Specific implementation method four: Combination Figures 3 to 5 To illustrate this embodiment, the liquid gate pipeline system 6 of this embodiment further includes a multi-way pipe 11, the other ends of the multiple collection branch hoses 4 are connected to the branch pipe body of the multi-way pipe 11, and the main pipe of the multi-way pipe 11 is connected to the liquid terminal main control component.

[0037] With this arrangement, the branch pipe body has multiple hose connectors, each of which is sealed and plugged into a collection branch hose 4. The birch sap collected by the multiple collection branch hoses 4 is collected in the branch pipe body and then uniformly discharged through a main pipe. The liquid terminal master control assembly controls the flow rate and opening or closing of the main pipe. The other components and connection relationships are the same as any of the specific embodiments one to three.

[0038] Specific implementation method five: Combination Figures 3 to 5 To explain this embodiment, the valve and pipe system 9 includes a vacuum pump 10, an air extraction servo valve 12, and a vacuum transmission tube. The vacuum pump 10 is connected to the air extraction servo valve 12 mounted on the hatch 2 via the vacuum transmission tube. This arrangement facilitates vacuuming within the cabin 1, achieving vacuum extraction of birch sap and improving birch sap collection efficiency. The remaining components and connections are the same as those in any of the first to fourth embodiments.

[0039] The valve pipeline system 9 in this embodiment works intermittently, that is, when the pressure of the cabin meets the vacuum extraction of birch sap, the exhaust servo valve 12 is closed, otherwise the exhaust servo valve 12 is opened. Whether the exhaust servo valve 12 is opened or not is adjusted at any time according to the pressure in the collection cabin.

[0040] Specific implementation method six: combination Figures 3 to 5 This embodiment will be described. This embodiment further includes a liquid level sensor. The liquid level sensor is vertically and sealedly inserted on the hatch cover 2 , and a position measuring end of the liquid level sensor extends into the cabin body 1 .

[0041] This arrangement is used to accurately measure the level of birch sap collected in the chamber 1. If the set level is reached, the liquid terminal master control assembly is closed to prevent excessive birch sap in the chamber 1, which would prevent further effective birch sap collection. The remaining components and connections are the same as those of any of the first to fifth embodiments.

[0042] Specific implementation method seven: combination Figures 6 to 8To illustrate this embodiment, this embodiment also includes a collection head 13, which includes a collection tube body 14 and a connector 15. The collection tube body 14 is a cylindrical cylinder, and the collection tube body 14 has multiple rows of liquid inlet holes 16 along its axial direction. The collection tube body 14 and the connector 15 are coaxially connected.

[0043] With this arrangement, the collection head is inserted into the hole drilled in the birch tree, and a transition fit between the collection head and the hole ensures that the collection head will not fall out. The plug-in connector 15 directly and seals the collection branch hose 4, allowing for quick installation of the collection head and the collection branch hose 4. The remaining components and connections are the same as those in any of the first to sixth embodiments.

[0044] Since the diameters of birch trees in different birch collection areas are different, the lengths of the collection tube body 14 on the collection head are different. As a preferred embodiment, it can be divided into three specifications, namely, lengths of 35mm, 55mm and 75mm, and an outer diameter of 10mm.

[0045] Specific implementation method eight: combination Figure 7 and Figure 8 To illustrate this embodiment, the angle between two adjacent rows of liquid inlet holes 16 in this embodiment is 90 degrees.

[0046] In this arrangement, the number of liquid inlet holes 16 in each row ranges from 5 to 20, which can be adjusted according to actual needs, and the number of liquid inlet holes 16 in two adjacent rows can be equal or staggered. Other components and connection relationships are the same as any one of the specific embodiments 1 to 7.

[0047] As a preferred embodiment, there are preferably three rows of liquid inlet holes 16, so that birch sap flows into the upper part and left and right sides of the collection head and the inner hole of the collection tube body, thereby improving the collection efficiency.

[0048] Specific implementation method nine: Combination Figures 1 to 8 The collection method of this embodiment includes the following steps: Step 1: Collect data in the birch forest area: First, the diameter of birch trees in the birch forest area was collected by drone and a map was generated; Secondly, the collected data was analyzed and birch trees of different diameters were classified to determine and plan the collection area; Step 2: Drill holes into the birch trees in the collection area; Step 3: Connect and debug the birch sap collection equipment; Step 4: Start the vacuum pump 10 to draw vacuum into the cabin 1 through the vacuum servo valve 12 and the vacuum transmission pipe; Step 5: When the vacuum degree in the cabin 1 reaches the set vacuum collection threshold, the vacuum servo valve 12 is closed; Step 6: Open the liquid inlet servo valve at the first end of the tube and the liquid inlet servo valve at the end of the tube to start collecting birch sap; Under the action of negative pressure, birch sap first flows in through the multiple rows of liquid inlet holes 16 on the collection head 13, which is inserted into the birch sap collection hole. Then, it passes through the filter, the liquid inlet servo valve at the head end of the tube body, the collection branch hose 4, the liquid inlet servo valve at the end of the tube body, and the elbow 8 before entering the cabin 1. Step 7: The controller 5 monitors the safe collection amount of birch sap with the smallest diameter in the birch tree area to be collected, the vacuum degree in the cabin 1, and the liquid level of birch sap in the cabin 1; When the pressure in the cabin 1 fails to meet the threshold value of the vacuuming requirement, the vacuum servo valve 12 is opened again to perform vacuuming; Step 8: When the liquid level reaches the set collection threshold or reaches the upper limit of the birch sap collection amount with the minimum diameter, the liquid inlet servo valves at the first ends of all the collection branch hoses 4 are closed to complete the birch sap collection in this area; Step 9: After completing the birch sap collection in multiple areas, multiple collection chambers transmit the birch sap to the main collection chamber at the foot of the mountain through the main transmission pipe, thereby completing large-scale birch sap collection.

[0049] In step 1 of this embodiment, the drone can guide the operator to drill holes in the nearby area according to the birch sap collection area.

[0050] In step 2 of this embodiment, since the quality of the holes drilled in the birch trees is a prerequisite for ensuring collection efficiency and birch sap quality, a dedicated drilling tool is used when drilling holes in the birch trees in the collection area. The holes are drilled at a downward angle of 15° and at the following depths: for birch trees with a diameter at breast height (DBH) of 20-26 cm, the hole depth is 3-4 cm, and the number of holes drilled is 1; for birch trees with a DBH of 27-34 cm, the hole depth is 5-6 cm, and the number of holes drilled is 2; for birch trees with a DBH of 35-40 cm, the hole depth is 7-8 cm, and the number of holes drilled is 3-4; for birch trees with a DBH greater than 40 cm, the hole depth is 7-8 cm, and the number of holes drilled is 4-5. The holes are drilled at a height of 30-60 cm from the ground.

[0051] In step 3 of this embodiment, connecting and debugging the birch sap collection device includes the following process: Regarding the connection of the collection equipment: Since the collection cabin is already connected when it is transported to the mountain, it is only necessary to insert the two ends of the collection hose 4 into the birch boreholes and the liquid inlet servo valve at the end of the hose, respectively, according to the number of birch trees to be collected. The collection head 13 is pre-installed on the collection hose 4.

[0052] Regarding the debugging of the acquisition equipment: check the controller 5, vacuum pump, turbidity sensor 3, liquid gate pipeline system 6, air valve pipeline system 9, liquid level sensor and tree end flow sensor module, and verify whether they are sensitive.

[0053] Specific implementation method ten: Combination Figures 1 to 8 In step nine of this embodiment, the birch sap is transported via the bottom liquid outlet of the pod 1, which is connected to the main transport pipe. During the transport of the birch sap down the mountain, the turbidity of the birch sap is detected by the turbidity sensor 3. The remaining components and connections are the same as those of any of the first to ninth embodiments.

[0054] The turbidity sensor 3 is provided in this embodiment mainly to prevent the birch sap collected from the collection chamber from becoming turbid when discharged after a period of use, thereby affecting the quality of the birch sap. If the birch sap becomes turbid, the collection chamber needs to be cleaned with high-pressure water.

[0055] Example: The present invention Figure 1 In the figure, the plane below the collection chamber is ground level A. The area framed in area B is the birch tree simulator. Its main structure consists of a bracket B-1 and a cylinder B-2. Bracket B-1 is at the same height as the birch tree hole. Cylinder B-2 is mounted on bracket B-1 and has a valve. By controlling the opening of the valve, the flow rate during birch sap collection is simulated. The number of birch tree simulators can be adjusted based on actual conditions.

[0056] Figure 1 and Figure 2 Schematic diagrams of 5 birch simulation devices and 10 birch simulation devices are given respectively to ensure that the experimental process can match the actual collection process.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A birch sap collection device, characterized by: It includes a cabin (1), a cabin cover (2), a turbidity sensor (3), a liquid valve pipeline system (6), a gas valve pipeline system (9), a total collection cabin, a controller (5), a tree end flow sensor module and a plurality of collection branch hoses (4); The hatch cover (2) is sealed on the cabin body (1) to form a collection cabin, and the turbidity sensor (3) is installed at the bottom liquid outlet of the cabin body (1); one end of each collection branch hose (4) is inserted into the birch sap collection hole, and the other end is connected to the liquid valve pipeline system (6) installed on the hatch cover (2), so as to realize large-scale collection of multiple birch trees at the same time; the valve pipeline system (9) is installed on the hatch cover (2) and regulates the vacuum degree in the cabin body (1), so as to realize vacuum suction collection of birch sap; The tree-end flow sensor module is installed on the birch tree with the smallest diameter in the birch tree area to be collected or on the branch representing the minimum collection amount, so as to detect the safe collection amount of birch sap in the birch tree area to be collected; the controller (5) is electrically connected to the turbidity sensor (3), the liquid gate pipeline system (6), the air gate pipeline system (9) and the tree-end flow sensor module; and the multiple collection chambers are connected to the main collection chamber at the bottom of the mountain through a main transmission pipe.

2. The birch sap collecting device according to claim 1, characterized in that: The liquid gate pipeline system (6) includes a liquid head end master control component and a liquid tail end master control component. The liquid head end master control component is installed at the head end of the collection branch hose (4). The liquid tail end master control component is installed on the hatch (2) and connected to the tail end of the collection branch hose (4). The liquid head end master control assembly includes a pipe body head end flow sensor and a pipe body head end liquid inlet servo valve, and the pipe body head end flow sensor and the pipe body head end liquid inlet servo valve are sequentially installed at the head end of the collection branch hose (4); The liquid end master control assembly comprises a support plate (7), an elbow (8), a pipe end flow sensor and a pipe end liquid inlet servo valve. The pipe end flow sensor and the pipe end liquid inlet servo valve are mounted on the hatch cover (2) through the support plate (7). One end of the elbow (8) is connected to the pipe end liquid inlet servo valve, and the other end of the elbow (8) is sealed and connected to the hatch cover (2) and communicated with the cabin body (1).

3. The birch sap collecting device according to claim 2, characterized in that: The liquid gate pipeline system (6) also includes a filter, which is installed at the head end of the tree end flow sensor module.

4. The birch sap collecting device according to claim 3, characterized in that: The liquid gate pipeline system (6) further comprises a multi-way pipe (11), the other ends of the plurality of collection branch hoses (4) are connected to the branch pipe body of the multi-way pipe (11), and the main pipe of the multi-way pipe (11) is connected to the liquid terminal main control component.

5. The birch sap collecting device and method according to claim 4, characterized in that: The valve pipeline system (9) includes a vacuum pump (10), an air extraction servo valve (12) and a vacuum transmission pipe, and the vacuum pump (10) is connected to the air extraction servo valve (12) installed on the hatch (2) through the vacuum transmission pipe.

6. The birch sap collecting device according to claim 5, characterized in that: It also includes a liquid level sensor, which is vertically sealed and inserted on the hatch cover (2), and the position measuring end of the liquid level sensor extends into the cabin body (1).

7. The birch sap collecting device according to claim 6, characterized in that: It also includes a collection head (13), which includes a collection tube body (14) and a connector (15). The collection tube body (14) is a cylindrical cylinder, and the collection tube body (14) is provided with multiple rows of liquid inlet holes (16) along its axial direction. The collection tube body (14) and the connector (15) are coaxially connected.

8. The birch sap collecting device according to claim 7, characterized in that: The angle between two adjacent rows of liquid inlet holes (16) is 90 degrees.

9. A method for collecting birch sap using the birch sap collecting device according to any one of claims 1 to 8, characterized in that: It includes the following steps: Step 1: Collect data in the birch forest area: First, the diameter of birch trees in the birch forest area was collected by drone and a map was generated; Secondly, the collected data was analyzed and birch trees of different diameters were classified to determine and plan the collection area; Step 2: Drill holes into the birch trees in the collection area; Step 3: Connect and debug the birch sap collection equipment; Step 4: Start the vacuum pump (10) and draw vacuum into the cabin (1) through the vacuum servo valve (12) and the vacuum transmission pipe; Step 5: When the vacuum level in the cabin (1) reaches the set vacuum collection threshold, the vacuum servo valve (12) is closed; Step 6: Open the liquid inlet servo valve at the first end of the tube and the liquid inlet servo valve at the end of the tube to start collecting birch sap; Under the action of negative pressure, birch sap first flows through the collection tube body (14) and the connector (15) on the collection head (13) which is inserted into the birch sap collection hole, and then enters the cabin body (1) after passing through the collection branch hose (4), the multi-way pipe (11), the liquid inlet servo valve at the end of the tube body and the elbow (8); Step 7: monitoring the safe collection amount of birch sap with the smallest diameter in the birch area to be collected, the vacuum degree in the cabin (1), and the liquid level of birch sap in the cabin (1) through the controller (5); When the pressure in the cabin (1) fails to meet the threshold value of the vacuuming requirement, the vacuuming servo valve (12) is opened again to perform vacuuming; Step 8: When the liquid level reaches the set collection threshold or reaches the upper limit of the minimum diameter birch sap collection amount, close the liquid inlet servo valve at the head end of all the collection branch hoses (4) to complete the birch sap collection in this area; Step 9: After completing the birch sap collection in multiple areas, multiple collection chambers transmit the birch sap to the main collection chamber at the foot of the mountain through the main transmission pipe, thereby completing large-scale birch sap collection.

10. The birch sap collection method according to claim 9, characterized in that: In step nine, the birch sap is transmitted by connecting the bottom liquid outlet of the cabin (1) to the main transmission pipe, and in the process of transmitting the birch sap down the mountain, the turbidity of the birch sap is detected by the turbidity sensor (3).

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