A forest litter collection device

Abstract

The present invention discloses a forest litter collection device, comprising an adjustable inner ring, which is sleeved on the outside of a tree trunk; a plurality of retractable extension rods, each of which is arranged around the tree trunk, one end of each retractable extension rod being connected to the adjustable inner ring, and a retractable movable device being provided below the retractable extension rod; at least one group of extension rods, one group of which is connected to the retractable extension rod, and the other groups of extension rods being connected end to end, and a retractable device being provided below the extension rod; and a collection net, each of which is laid on the retractable extension rod and the extension rod, and is fixed to the retractable extension rod or the extension rod, with a sealing net being laid between adjacent collection nets. The present invention can adapt to different terrain slopes and diverse forest surface conditions, making the collection device more stable and meeting the needs of collecting litter from standing trees with different diameters at breast height.

Description

Technical Field

[0001] The present invention relates to the field of forest ecological technology, and in particular to a forest litter collection device and a collection method thereof. Background Art

[0002] In forest ecosystems, litter, as a crucial component of the carbon cycle, plays a crucial role in accurately estimating forest carbon storage. Litter comprises a variety of forms, including but not limited to leaves, bud scales, branches, fruit, and loose, cracked bark, originating from a variety of tree species and ages. To comprehensively and accurately assess a forest's carbon storage capacity, systematic collection of these litter samples is essential.

[0003] However, the complexity of forest environments poses significant challenges to the effective collection of litter. Traditional collection methods often prove inadequate, particularly in areas with steep slopes (typically greater than 15°), dense understory vegetation, rocky terrain, and variable climatic conditions. While there are currently several patented technologies for litter collection, such as box-type or metal barrel-shaped collection devices, these solutions often fail to fully account for the practical needs of complex site conditions. Their applicability and efficiency are particularly limited when dealing with varying stand ages, large variations in canopy radius, and variable trunk base shapes. Summary of the Invention

[0004] Therefore, in order to solve the above-mentioned shortcomings, on the one hand, the present invention provides a forest litter collection device, comprising:

[0005] An adjustable inner ring, which is sleeved on the outer side of the tree trunk;

[0006] A retractable extension rod, wherein a plurality of retractable extension rods are provided and arranged around the tree trunk, one end of the retractable extension rod is connected to an adjustable inner ring, and the length of the retractable extension rod can be changed by stretching or squeezing the retractable extension rod, and a retractable movable device is provided below the retractable extension rod to support the retractable extension rod, and the retractable movable device is height-adjustable;

[0007] Extension rods, wherein the extension rods are provided with at least one group, wherein the extension rods in one group are connected to the telescopic extension rod, and the extension rods in the other groups are connected end to end, and a telescopic device is provided below the extension rods to support the extension rods through the telescopic device, and the telescopic device is height-adjustable;

[0008] The collecting net is laid on the telescopic extension rod and the extension rod respectively, and is kept fixed to the telescopic extension rod or the extension rod. A sealing net is also laid between adjacent collecting nets.

[0009] The present invention adopts a design with a retractable movable device that can be extended up and down around the trees to adapt to different terrain slopes, especially mountainous areas with slopes greater than 15°. The bottom of each extension rod is designed with a retractable device that can be extended up and down, which can adapt to various surface conditions under the forest, making the collection device more stable. According to the circumference of the bottom of the standing tree, the device adjusts the number of retractable extension rods to meet the needs of collecting fallen leaves from standing trees with different breast diameters; by continuously increasing the number of extension rods, the vertical projection range of the circular edge formed needs to completely include the range of the drip line and exceed the periphery of the drip line. The laid collection net adopts the method of laying out ring by ring, and the upper layer at the joint of the rings is covered with a strip of dense net. The edges of the dense net on both sides are fixed to the lower layer of dense net with cable ties to fill the gaps between the rings, thereby improving the adaptability of the collection device in complex terrain.

[0010] Furthermore, the adjustable inner ring includes a flexible belt and an adjustable buckle. The adjustable buckle is fixedly connected to one end of the flexible belt, and the other end of the flexible belt passes through the adjustable buckle to form a flexible belt loop. The adjustable buckle contacts the side of the flexible belt to fix the size of the flexible belt loop.

[0011] Furthermore, the adjustable buckle includes a box body, a first insertion hole for one end of the flexible belt to pass through is provided in the box body, and a fixing pin is provided in the box body to fix the one end of the flexible belt to the box body through the fixing pin;

[0012] A spring tongue is also provided in the box body, and the spring tongue is rotatably connected to the box body. A toggle portion connected to the spring tongue is also provided on the outside of the box body. The spring tongue is driven to rotate by rotating the toggle portion on the outside. A compression spring is also provided at the connection between the spring tongue and the box body, and a serrated portion matching the spring tongue is provided on the belt surface of the flexible belt.

[0013] By adopting an adjustable length and an inner ring design that fits close to the bark, the device can adapt to the bottom shape of tree trunks that are not all perfectly round.

[0014] Furthermore, the telescopic extension rod includes a connecting rod and a telescopic elastic member, the telescopic elastic member is connected to one end of the connecting rod, and the telescopic elastic member is connected to the adjustable inner ring.

[0015] The design of transverse support rods with retractable elastic parts allows the unfolded mesh structure to not only adapt to the shape of the tree crown but also enhance the stability of the overall structure.

[0016] Furthermore, the retractable elastic member is fixed to the adjustable inner ring via a fixing assembly;

[0017] The fixing assembly includes:

[0018] a second fixing member connected to the telescopic elastic member, wherein a first groove partially accommodating the flexible band is provided on a side of the second fixing member away from the telescopic elastic member;

[0019] a first fixing member, wherein the first fixing member is cooperatively connected with the second fixing member at a side away from the retractable elastic member to clamp the flexible belt portion therein;

[0020] The fastener is arranged on the inner side of the first fixing member. The fastener has a connecting portion that penetrates the first fixing member on the side close to the first fixing member. The fastener is movably connected to the first fixing member through the connecting portion, and an interference portion is provided at the end of the connecting portion.

[0021] By arranging the first fixing member on the side of the flexible belt contacting the tree trunk and the second fixing member on the other side of the flexible belt, the first and second fixing members cooperate to clamp the flexible belt inside. At this time, the interference part contacts the tree trunk, and the pressure between the flexible belt and the tree trunk pushes the interference part, so that the interference part drives the fastener to press tightly against the side of the flexible belt, and cooperates with the first groove to tighten the flexible belt, making disassembly and assembly convenient and quick.

[0022] Furthermore, the retractable elastic member includes a spring, and first hooks are provided at both ends of the spring;

[0023] A second hanging ring is provided on the outer side of the second fixing member, and a hook at one end of the spring is hung on the second hanging ring;

[0024] One end of the connecting rod is provided with a first hanging ring, and the hook at the other end of the spring is hung on the first hanging ring.

[0025] By designing the retractable elastic member to have a hook structure and connecting it with the first hanging ring and the second hanging ring, the retractable elastic member is easy to carry and easy to install and disassemble.

[0026] Furthermore, a hook assembly is provided at one end of the connecting rod away from the telescopic elastic member and at both ends of the extension rod, and the hook assembly includes two sets of third hooks arranged in opposite directions;

[0027] The first fixing member is provided with a second hook;

[0028] The collecting net is stretched and fixed by the second hook and the third hook on the connecting rod or two groups of third hooks on the extension rod, and the sealing net is stretched and fixed by the third hook on the connecting rod and the third hook on the extension rod or the third hook on the adjacent extension rod.

[0029] The second hook and the third hook provide conditions for fixing the collecting net and the sealing net, which facilitates the rapid installation of the collecting net and the sealing net.

[0030] Furthermore, the collecting device further comprises a shielding device, which is arranged on the outer side of the outermost collecting net;

[0031] The shielding device includes:

[0032] There are multiple fixed piles, and the multiple fixed piles are fixed on the ground around the outer side of the outermost collection net;

[0033] A shielding cloth is provided around the outer side of the outermost collecting net and is fixed to the fixing piles;

[0034] A fixing opening is provided at the outermost portion of the collection net at a position corresponding to the fixing pile, and the collection net is connected to the fixing pile through the fixing opening;

[0035] The shielding cloth is connected to the outermost collecting net via folding buckles.

[0036] A shielding fence is designed around the periphery of the mesh device to prevent animals from eating the collected litter. The collection net is fastened to the fixed piles of the shielding fence using folding buckles to ensure a seamless connection between the mesh device and the shielding fence.

[0037] Furthermore, the telescopic movable device includes a movable portion and a first mounting portion, the first mounting portion is fixedly connected to the connecting rod, and the movable portion is telescopically connected to the first mounting portion via a buffer adjustment portion;

[0038] The retractable device includes a support portion and a second mounting portion, the second mounting portion is fixedly connected to the extension rod, and the support portion is retractably connected to the second mounting portion via a buffer adjustment portion;

[0039] The buffer adjustment unit includes:

[0040] A guide portion, the guide portion being rotatably mounted on the first mounting portion or the second mounting portion;

[0041] a fixing plate fixed to the bottom of the guide portion;

[0042] Buffer guide rods, the buffer guide rods are fixedly mounted on both ends of the fixed plate, and buffer elastic members are provided on the outside of the buffer guide rods;

[0043] The movable plate is connected with the buffer elastic member. An adjusting portion is provided at a position of the movable plate corresponding to the guide portion. The adjusting portion is threadedly connected with the moving portion or the supporting portion.

[0044] By rotating the buffer adjustment part as a whole, the height of the moving part or the supporting part can be adjusted to adapt to the complex terrain of the forest area. At the same time, when collecting fallen leaves, the impact of the fallen leaves on the collection net or the sealing net will be shared and buffered by the buffer adjustment part, thereby preventing the collection net or the sealing net from being pulled and increasing the service life of the device.

[0045] On the other hand, the present invention also provides a method for collecting forest litter, which uses the above-mentioned collection device and includes:

[0046] Clear and cut the shrubs and grasses on the forest floor;

[0047] Install an adjustable inner ring around the base of the trunk of a specific tree species;

[0048] Calculate the number of telescopic extension rods required based on the size of the tree crown. Fix the telescopic extension rods one by one on the inner ring device with the tree trunk as the center. Then, install the telescopic moving device on each telescopic extension rod.

[0049] Start fixing the collection net from the first telescopic extension pole, and with the tree trunk as the center, lay the dense net one by one and fix it until it covers the first telescopic extension pole again. After fixing, cut the dense net. The final dense net laid is in a circular ring shape, forming the first layer of collection net ring;

[0050] Calculate the number of extension rods needed based on the radius of the drip line from the tree trunk and obtain the result of the number of extension rods. The calculation method is as follows:

[0051] ;

[0052] in, R is the radius of the drip line from the trunk, in units of m ; n To increase the number of extension rods, n Get the smallest positive integer; L 1 is the length of the extension rod, in units of m ; L 2 is the length of the telescopic extension rod, in units of m ; A It is the sum of the connection gaps between the extension rod and the telescopic extension rod, and between adjacent extension rods, in units of m ;

[0053] After calculating the number of extension rods, first connect the extension rods to the telescopic extension rods one by one, then lay the collection net on the extension rods connected to the telescopic extension rods in the same way as the first layer of collection net rings to form a second layer of collection net rings, then lay the sealing net at the joint of the first and second layers of collection net rings to form a sealing net ring, and fix the telescopic device on the extension rods; repeat this process until all the preset number of extension rods are installed, where the preset number is the calculated number of extension rods that need to be added;

[0054] Install the shielding device. On the periphery of the drip line, along the periphery of the outermost collection net ring, with the tree trunk as the center, install fixed piles respectively; around the periphery of the fixed piles, successively surround the shielding cloth to form a circular ring. The outer collection net is fixed to the fixed piles through the fixing holes;

[0055] After the device is installed, it is placed for a preset time, which is more than 1 year.

[0056] The present invention has the following advantages:

[0057] The present invention adopts a design with a retractable movable device that can be extended up and down around the trees to adapt to different terrain slopes, especially mountainous areas with slopes greater than 15°. The bottom of each extension rod is designed with a retractable device that can be extended up and down, which can adapt to various surface conditions under the forest, making the collection device more stable. According to the circumference of the bottom of the standing tree, the device adjusts the number of retractable extension rods to meet the needs of collecting fallen leaves from standing trees with different breast diameters; by continuously increasing the number of extension rods, the vertical projection range of the circular edge needs to completely include the range of the drip line and exceed the periphery of the drip line. The laid collection net adopts the method of laying out ring by ring, and the upper layer at the joint of the rings is covered with a strip of dense net. The edges of the dense net are fixed to the lower layer of dense net with cable ties to fill the gaps between the rings, thereby improving the adaptability of the collection device in complex terrain. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 It is a schematic diagram of the installation of the collection device;

[0059] Figure 2 yes Figure 1 A schematic diagram of the planar layout of the collecting device shown;

[0060] Figure 3 yes Figure 2 A schematic diagram of a portion of the structure of the collecting device shown;

[0061] Figure 4 yes Figure 2 A schematic structural diagram of a shielding device in the collecting device shown;

[0062] Figure 5 yes Figure 1 A schematic structural diagram of the adjustable inner ring in the collecting device;

[0063] Figure 6 yes Figure 5 A schematic diagram of the structure of the adjustable buckle in the adjustable inner ring;

[0064] Figure 7 yes Figure 6 A schematic diagram of the internal structure of the adjustable buckle shown;

[0065] Figure 8 yes Figure 7 Schematic diagram of the cooperation between the spring tongue and the flexible belt of the adjustable buckle;

[0066] Figure 9 yes Figure 2 A schematic structural diagram of the retractable extension rod in the collecting device shown;

[0067] Figure 10 yes Figure 9 A schematic diagram of the structure of the fixed component in the telescopic extension rod shown;

[0068] Figure 11 yes Figure 10 a side view of the illustrated fixing assembly;

[0069] Figure 12 yes Figure 10 A schematic structural diagram of the connecting rod in the telescopic extension rod shown;

[0070] Figure 13 yes Figure 10 A schematic structural diagram of a telescopic elastic member in the telescopic extension rod shown;

[0071] Figure 14 yes Figure 2 A schematic structural diagram of the connecting member in the collecting device shown;

[0072] Figure 15 yes Figure 2 A schematic structural diagram of the extension rod in the collecting device shown;

[0073] Figure 16 yes Figure 1 A schematic structural diagram of the retractable movable device in the collecting device shown;

[0074] Figure 17 yes Figure 16 A schematic structural diagram of a buffer adjustment portion in the telescopic movable device shown;

[0075] Figure 18 yes Figure 1 A schematic structural diagram of the retractable device in the collecting device shown;

[0076] Figure 19 yes Figure 18 A schematic diagram of the internal structure of the retractable device shown;

[0077] Figure 20 Figure 19 A partial enlarged schematic diagram of the portion marked B in the retractable device shown;

[0078] Figure 21 yes Figure 19 A schematic diagram of a portion of the structure of the anchor assembly in the retractable device shown;

[0079] In the picture:

[0080] 100. Tree;

[0081] 200, drip line;

[0082] 300, shielding device; 310, fixed pile; 320, shielding cloth;

[0083] 400, adjustable inner ring; 410, flexible belt; 420, adjustable buckle; 421, box body; 422, first insertion hole; 423, fixing pin; 424, spring tongue; 425, toggle portion;

[0084] 500, retractable movable device; 510, first mounting portion; 520, movable portion

[0085] 600, retractable device; 610, second mounting portion; 620, support portion; 630, anchor assembly; 631, screw; 632, support; 633, expansion rod; 634, ejector rod; 635, slide; 636, slide block; 637, connecting rod;

[0086] 700, telescopic extension rod; 710, connecting rod; 711, first rod body; 712, first connecting portion; 714, first hanging ring; 720, telescopic elastic member; 721, spring; 722, first hook;

[0087] 800, extension rod; 810, second rod body; 820, second connecting portion;

[0088] 900, collection network;

[0089] 1000, connector; 1001, threaded hole;

[0090] 1100, sealing net;

[0091] 1200, fixing assembly; 1210, first fixing member; 1220, second fixing member; 1230, second hanging ring; 1240, second hook; 1250, fastener; 1260, interference portion;

[0092] 1300, ground;

[0093] 1400, hook assembly;

[0094] 1500, buffer adjustment part; 1510, guide part; 1520, fixed plate; 1530, buffer elastic member; 1540, movable plate; 1550, buffer guide rod; 1560, adjustment part. DETAILED DESCRIPTION

[0095] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0096] In this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0097] As described in the background technology, the complexity of the forest environment poses a huge challenge to the effective collection of litter. In particular, in areas with steep slopes (usually greater than 15°), dense understory vegetation, scattered rocks, and changeable climatic conditions, traditional collection methods often seem inadequate. Currently, although there are some patented technologies involving the collection of litter, such as the use of box-type or metal barrel-shaped collection devices, most of these solutions fail to fully consider the actual needs under complex site conditions, especially when dealing with different forest ages, large differences in crown radius, and variable shapes of trunk bases, their applicability and efficiency are obviously insufficient.

[0098] Example 1:

[0099] Therefore, in order to solve the above technical problems in the prior art, this embodiment provides a forest litter collection device, such as Figure 1 、 2 As shown, the collecting device includes:

[0100] An adjustable inner ring 400, which is sleeved on the outside of the tree trunk;

[0101] A retractable extension rod 700, wherein a plurality of retractable extension rods are provided and arranged around the tree trunk, one end of each retractable extension rod being connected to an adjustable inner ring 400, and the length of the retractable extension rod can be changed by stretching or squeezing the retractable extension rod. A retractable movable device 500 is provided below the retractable extension rod 700, and the retractable extension rod is supported by the retractable movable device, and the retractable movable device is height-adjustable;

[0102] Extension rods 800, each of which is provided with at least one group, wherein one group of extension rods is connected to a telescopic extension rod, and the remaining groups of extension rods are connected end to end, and a telescopic device 600 is provided below the extension rods to support the extension rods, and the telescopic device is height-adjustable;

[0103] The collecting net 900 is laid on the telescopic extension rod and the extension rod respectively, and is kept fixed to the telescopic extension rod or the extension rod. A sealing net 1100 is also laid between adjacent collecting nets.

[0104] When implementing this embodiment, the grass and bushes on the understory are first cleared and cut, and an adjustable inner ring device is installed around the bottom of the trunk of the tree 100. The number of telescopic extension rods required to be installed is calculated according to the size of the crown area, such as Figure 3 As shown, with the tree trunk as the center, the telescopic extension rods are fixed one by one on the inner ring device. Then, a telescopic moving device is installed on each telescopic extension rod. The collection net is fixed starting from the first telescopic extension rod. With the tree trunk as the center, the dense net is laid and fixed one by one until it covers the first telescopic extension rod again. After fixing, the dense net is cut. The final dense net laid is in a circular shape, forming the first layer of collection net ring. According to the radius of the drip line 200 from the tree trunk, the number of extension rods that need to be added is calculated to obtain the calculation result of the number of extension rods. The calculation method is as follows:

[0105] ;

[0106] in, R is the radius of the drip line from the trunk, in units of m ; n To increase the number of extension rods, n Get the smallest positive integer; L 1 is the length of the extension rod, in units of m ; L 2 is the length of the telescopic extension rod, in units of m ; A It is the sum of the connection gaps between the extension rod and the telescopic extension rod, and between adjacent extension rods, in units of m ;

[0107] After calculating the number of extension rods, first connect the extension rods to the telescopic extension rods one by one, then lay the collection net on the extension rods connected to the telescopic extension rods in the same way as the first layer of collection net rings to form a second layer of collection net rings, then lay the sealing net at the joint of the first and second layers of collection net rings to form a sealing net ring, and fix the telescopic device on the extension rods; repeat this process until all the preset number of extension rods are installed, where the preset number is the calculated number of extension rods that need to be added;

[0108] This embodiment adopts a design with a retractable movable device that can be extended up and down around the trees to adapt to different terrain slopes, especially mountainous areas with slopes greater than 15°. The bottom of each extension rod is designed with a retractable device that can be extended up and down, which can adapt to various surface conditions under the forest, making the collection device more stable. At the same time, according to the circumference of the bottom of the standing tree, the device can adjust the number of retractable extension rods to meet the needs of collecting litter from standing trees with different breast diameters; by continuously increasing the number of extension rods, the vertical projection range of the circular edge formed needs to completely include the range of the drip line and exceed the periphery of the drip line. The collection net is laid out in a ring-by-ring manner. The upper layer at the joint of the rings is covered with a strip of dense net. The edges of the dense net are fixed to the lower layer of dense net with tie ties on both sides to fill the gaps between the rings and prevent litter from leaking through the gaps, thereby causing litter to be missed and leading to inaccurate research results.

[0109] Example 2:

[0110] This embodiment provides one structure of an adjustable inner ring, such as Figure 5 As shown, the adjustable inner ring includes a flexible belt 410 and an adjustable buckle 420. The adjustable buckle is fixedly connected to one end of the flexible belt, and the other end of the flexible belt passes through the adjustable buckle to form a flexible belt loop. The adjustable buckle contacts the side of the flexible belt to fix the size of the flexible belt loop.

[0111] like Figure 6 、 7 As shown, the adjustable buckle includes a box body 421, a first insertion hole 422 for one end of the flexible belt to pass through is provided in the box body 421, and a fixing pin 423 is provided in the box body to fix one end of the flexible belt to the box body 421 through the fixing pin;

[0112] A spring tongue 424 is also provided in the box body, and the spring tongue is rotatably connected to the box body. A toggle portion connected to the spring tongue is also provided on the outside of the box body. The spring tongue is driven to rotate by rotating the toggle portion on the outside. A compression spring is also provided at the connection between the spring tongue and the box body, and a serrated portion matching the spring tongue is provided on the belt surface of the flexible belt.

[0113] like Figure 8As shown, by wrapping the flexible belt around the trunk, inserting one end of the flexible belt into the first insertion hole and passing through the first insertion hole, without rotating the toggle part, since one side of the spring tongue is in an arc shape and the other side is in a plane perpendicular to the flexible belt surface, when the belt is turned Figure 8 When the flexible belt moves in the direction shown, the saw teeth squeeze the spring tongue under the action of the arc side to rotate. When the saw teeth pass through the spring tongue, they are reset under the action of the compression spring, and this process repeats. If the flexible belt moves in the opposite direction, the plane side of the spring tongue perpendicular to the other flexible belt surface will block the saw teeth and prevent the flexible belt from moving. Only by rotating the toggle part to drive the spring tongue to rotate and make it rotate out of the sawtooth part, can the flexible belt move in the opposite direction, thereby realizing the adjustment of the size of the flexible belt ring. By adopting an adjustable length and an inner ring design that is close to the bark, the device can adapt to the bottom shape of the trunk that is not always ideally round.

[0114] Of course, this embodiment only provides one structure of the adjustable inner ring, and the adjustable inner ring in the present invention is not limited to the structure described in this embodiment, and other structures may also be used, for example, an elastic band, by wrapping the elastic band around the trunk and then tying it up; or a structure similar to a belt in the prior art.

[0115] Example 3:

[0116] This embodiment provides one structure of a telescopic extension rod, such as Figure 9 As shown, the telescopic extension rod provided in this embodiment includes a connecting rod 710 and a telescopic elastic member 720. The telescopic elastic member 720 is connected to one end of the connecting rod 710, and the telescopic elastic member is connected to the adjustable inner ring.

[0117] The design of transverse support rods with retractable elastic parts allows the unfolded mesh structure to not only adapt to the shape of the tree crown but also enhance the stability of the overall structure.

[0118] In this embodiment, the retractable elastic member may be a spring.

[0119] Example 4:

[0120] like Figure 3 As shown, the retractable elastic member in this embodiment is fixed to the adjustable inner ring by a fixing assembly 1200;

[0121] like Figure 10 、 11 As shown, the fixing assembly 1200 includes:

[0122] A second fixing member 1220, which is connected to the retractable elastic member and has a first groove for partially accommodating the flexible band on a side of the second fixing member away from the retractable elastic member;

[0123] A first fixing member 1210, which is coupled to the second fixing member at a side away from the retractable elastic member to clamp the flexible belt portion therein;

[0124] The fastener 1250 is arranged on the inner side of the first fixing member. The fastener has a connecting portion that passes through the first fixing member 1210 on the side close to the first fixing member. The fastener is movably connected to the first fixing member through the connecting portion, and an interference portion 1260 is provided at the end of the connecting portion.

[0125] By arranging the first fixing member on the side of the flexible belt contacting the tree trunk and the second fixing member on the other side of the flexible belt, the first and second fixing members cooperate to clamp the flexible belt inside. At this time, the interference part contacts the tree trunk, and the pressure between the flexible belt and the tree trunk pushes the interference part, so that the interference part drives the fastener to press tightly against the side of the flexible belt, and cooperates with the first groove to tighten the flexible belt, making disassembly and assembly convenient and quick.

[0126] In this embodiment, the first fixing member may have a T-shaped slot, and the outer side of the second fixing member is provided with a protrusion matching the T-shaped slot, and the first and second fixing members are matched and connected by inserting the second fixing member into the T-shaped slot of the first fixing member.

[0127] In this embodiment, the fastener may be Figure 10 、 11 The fastening plate shown may also be provided with an array of rubber strips (blocks or dots) to increase the friction between the fastening plate and the flexible belt.

[0128] In addition, in addition to the squeezing effect between the flexible belt and the tree trunk so that the interference part drives the fastener to cooperate with the second fixing part to squeeze the flexible belt to achieve the fixation between the flexible belt and the fixing component, it can also be achieved through the threaded connection between the connecting part and the first fixing part. By rotating the interference part, the fastener is driven close to or away from the flexible belt, thereby achieving the tightness of the flexible belt.

[0129] Example 5:

[0130] like Figure 13 As shown, the retractable elastic member includes a spring 721, and first hooks 722 are provided at both ends of the spring;

[0131] like Figure 11 As shown, a second hanging ring 1230 is provided on the outer side of the second fixing member, and a hook at one end of the spring is hung on the second hanging ring;

[0132] like Figure 12 As shown, a first hanging ring 714 is provided at one end of the connecting rod, and a hook at the other end of the spring is hung on the first hanging ring.

[0133] By designing the retractable elastic member to have a hook structure and connecting it with the first hanging ring and the second hanging ring, the retractable elastic member is easy to carry and easy to install and disassemble.

[0134] Example 6:

[0135] like Figure 12 、 15 As shown, the end of the connecting rod away from the telescopic elastic member and the two ends of the extension rod are provided with hook assemblies 1400, and the hook assemblies include two sets of third hooks arranged in opposite directions;

[0136] like Figure 10 、 11 As shown, the first fixing member is provided with a second hook 1240;

[0137] The collecting net is stretched and fixed by the second hook and the third hook on the connecting rod or two groups of third hooks on the extension rod, and the sealing net is stretched and fixed by the third hook on the connecting rod and the third hook on the extension rod or the third hook on the adjacent extension rod.

[0138] The second hook and the third hook provide conditions for fixing the collecting net and the sealing net, which facilitates the rapid installation of the collecting net and the sealing net.

[0139] In addition, in this embodiment, the end of the connecting rod provided with the third hook is provided with a first connecting portion 712, and an external thread is provided on the outer side of the first connecting portion 712;

[0140] In this embodiment, the extension rod includes a rod body 810, and second connecting portions 820 are provided at both ends of the rod body 810, and external threads are provided on the outer sides of the second connecting portions;

[0141] The connecting rod is connected to the extension rod and the adjacent extension rods via a connecting piece 1000 , and the connecting piece is provided with a threaded hole 1001 matching the external threads of the first connecting part and the second connecting part.

[0142] It should be noted that embodiments 3, 4, 5, and 6 provide one structure of the telescopic extension rod. In addition to the structure described in the above embodiments, the telescopic extension rod can also be designed as a structure of a screw rod and a threaded sleeve rod.

[0143] Example 7:

[0144] like Figure 1 As shown, the collecting device may further include a shielding device 300, which is arranged on the outer side of the outermost collecting net;

[0145] like Figure 4 As shown, the shielding device includes:

[0146] There are multiple fixed piles 310, which surround the outer side of the outermost collection net and are fixed on the ground 1300;

[0147] A shielding cloth 320 is provided around the outer side of the outermost collecting net and is fixed to the fixing piles;

[0148] A fixing opening is provided at the outermost portion of the collection net at a position corresponding to the fixing pile, and the collection net is connected to the fixing pile through the fixing opening;

[0149] The shielding cloth is connected to the outermost collecting net via folding buckles.

[0150] A shielding fence is designed around the periphery of the mesh device to prevent animals from eating the collected litter. The collection net is fastened to the fixed piles of the shielding fence using folding buckles to ensure a seamless connection between the mesh device and the shielding fence.

[0151] Example 8:

[0152] like Figure 16 As shown, the telescopic movable device 500 includes a movable portion 520 and a first mounting portion 510 , the first mounting portion is fixedly connected to the connecting rod, and the movable portion is telescopically connected to the first mounting portion via a buffer adjustment portion 1500 ;

[0153] like Figure 18 As shown, the retractable device 600 includes a support portion 620 and a second mounting portion 610. The second mounting portion 610 is fixedly connected to the extension rod, and the support portion is retractably connected to the second mounting portion via a buffer adjustment portion.

[0154] like Figure 17 As shown, the buffer adjustment portion includes:

[0155] The guide portion 1510 is rotatably mounted on the first mounting portion or the second mounting portion;

[0156] A fixing plate 1520, which is fixed to the bottom of the guide portion;

[0157] Buffer guide rods 1550, which are fixedly mounted on both ends of the fixed plate. Buffer elastic members 1530 are provided on the outside of the buffer guide rods 1550;

[0158] The movable plate 1540 is connected to the buffer elastic member. An adjusting portion 1560 is provided at a position of the movable plate corresponding to the guide portion. The adjusting portion is threadedly connected to the moving portion or the supporting portion.

[0159] By rotating the buffer adjustment part as a whole, the height of the moving part or the supporting part can be adjusted to adapt to the complex terrain of the forest area. At the same time, when collecting fallen leaves, the impact of the fallen leaves on the collection net or the sealing net will be shared and buffered by the buffer adjustment part, thereby avoiding the collection net or the sealing net from being pulled and increasing the service life of the device.

[0160] Example 9:

[0161] like Figures 18 to 21 As shown, the retractable device may further include an anchoring assembly (630), which is inserted under the ground to fix the retractable device to the ground.

[0162] The anchor assembly comprises:

[0163] A screw 631 is connected to the bottom of the second mounting portion, and an anchor sleeve is provided on the outside of the screw, and an external thread may be provided on the outside of the anchor sleeve;

[0164] The support 632 is annular and is integrally mounted on the outside of the screw 631. Figure 6 As shown, a plurality of first connection portions are provided on the circumferential side of the support 632. The first connection portions protrude along the radial direction of the support 632, and the plurality of first connection portions are arranged at equal angles along the circumference of the support 632.

[0165] A slide block 636 is provided parallel to the support 632. The slide block 636 is annular and integrally mounted on the outside of the screw 631. When the screw 631 is rotated, the slide block 636 can move along the axis of the screw 631. A cross groove is provided on the end surface of the slide block 636 corresponding to the first connecting portion.

[0166] A connecting rod 637, wherein a connecting pin is fixedly mounted on one end of the connecting rod 637, the connecting pin being arranged perpendicular to the connecting rod 637, and the end of the connecting rod 637 provided with the connecting pin being engaged with the connecting pin in the cross groove; and

[0167] An expansion rod 633, one end of which is pivotally connected to the first connecting portion on the peripheral side of the support 632. A connecting groove is provided at the end of the expansion rod 633 away from the support 632 to accommodate the end of the connecting rod 637 away from the connecting pin. One end of the connecting rod 637 is arranged in the connecting groove and is pivotally connected to the expansion rod 633.

[0168] In addition, the anchoring assembly in this embodiment further includes:

[0169] A slide 635 is provided between the support 632 and the slide block 636. The slide 635 is integrally mounted on the outside of the screw 631. When the screw is rotated, the slide 635 moves along the axis of the screw. A plurality of second connection portions are provided on the side of the slide 635 corresponding to the first connection portions. The second connection portions extend radially along the slide 635.

[0170] A push rod 634, one end of which is pivotally connected to the second connecting portion, and a slot connected to the connecting slot is provided at a position adjacent to the connecting slot of the expansion rod 633, and one end of the push rod 634 away from the second connecting portion is accommodated in the slot, and the middle portion of the push rod 634 is pivotally connected to the expansion rod 633.

[0171] During installation, the retractable device is rotated as a whole to screw the anchor assembly into the ground, and then the second mounting part is rotated, which drives the screw to rotate. At this time, the anchor sleeve is fixed, and the screw drives the slide block 636 to move along the axis of the screw, thereby driving the connecting rod 637 to move. The moving connecting rod drives the expansion rod 633 to rotate around the pivot axis between it and the first connecting part, thereby realizing the outward expansion of the expansion rod. While rotating the screw, the slide 635 will also move along the axis of the screw, and the slide drives the push rod 634 to move around the pivot axis between it and the expansion rod 633, so that the end of the push rod away from the second connecting part expands outward until it abuts against the hole wall around the anchor sleeve or embeds into the soil around it. The screw will be difficult to rotate. Since the expansion rod and the push rod are firmly against the hole wall of the anchor hole at this time, the entire anchor assembly is fixed in the ground and is difficult to pull out. It can easily grasp the ground. When removing, it is only necessary to rotate the second mounting part in the opposite direction to retract the expansion rod. By rotating the entire retractable device, the retractable device can be separated from the ground.

[0172] Since the anchor sleeve may rotate together with the screw driven by the second mounting part, the rotation of the anchor sleeve can be stopped when the second mounting part is at a certain height from the ground, the anchor sleeve can be held to fix it, and then the second mounting part can be rotated to expand the expansion rod outward and fixed, and then soil or a pad can be placed between the second mounting part and the ground.

[0173] Example 10:

[0174] This embodiment provides a method for collecting forest litter, which uses the above-mentioned collection device and includes:

[0175] Clear and cut the shrubs and grasses on the forest floor;

[0176] Around the base of the trunk of a particular tree species, 5 cm -10 cm An adjustable inner ring device is installed in one circle;

[0177] According to the size of the tree canopy, calculate the number of telescopic extension rods that need to be installed (in the present invention, the length of the telescopic extension rod is selected to be 1 meter). With the tree trunk as the center, arrange the telescopic extension rods at intervals of 60 degrees (6 rods) or 45 degrees (8 rods). Fix the telescopic extension rods one by one to the inner ring device, and then install the telescopic moving device on each telescopic extension rod.

[0178] The collection network (1.2 m Width) Start fixing from the first telescopic extension pole, with the tree trunk as the center, lay the dense net one by one and fix it until it covers the first telescopic extension pole again. After fixing, cut the dense net. The final dense net laid is in a circular ring shape, forming the first layer of collection net ring;

[0179] According to the radius of the drip line from the trunk, calculate the length of the extension rod (in the present invention, the length of the extension rod is selected as 1 m ) to obtain the number of extension rods, which is calculated as follows:

[0180] ;

[0181] in, R is the radius of the drip line from the trunk, in units of m ; n To increase the number of extension rods, n Get the smallest positive integer; L 1 is the length of the extension rod, in units of m ; L 2 is the length of the telescopic extension rod, in units of m ; A It is the sum of the connection gaps between the extension rod and the telescopic extension rod, and between adjacent extension rods, in units of m ;

[0182] For example, the drip line radius is 2 m , then you need to add 1 extension rod. If the radius is 3 meters, you need to add 2 extension rods. If the radius is 3.5 meters, you need to add 3 extension rods, and so on. The length that can completely contain R shall prevail.

[0183] After calculating the number of extension rods, first connect the extension rods to the telescopic extension rods one by one, then lay the collection net on the extension rods connected to the telescopic extension rods in the same way as the first layer of collection net rings to form a second layer of collection net rings, then lay the sealing net at the joint of the first and second layers of collection net rings to form a sealing net ring, and fix the telescopic device on the extension rods; repeat this process until all the preset number of extension rods are installed, where the preset number is the calculated number of extension rods that need to be added;

[0184] Install shielding device, 10 outside the drip line cm At the periphery of the outermost collection network ring, with the tree trunk as the center, install 1 m Tall fixed piles (the number should be at least twice the number of extension rods (with spring sections) used in the first layer, e.g., n ≥ 12 or ≥ 16). 1.1m wide screens (dense, non-mesh structure) are placed around the fixed piles, forming a circular ring. The peripheral collection net is secured to the fixed piles through the fixing holes.

[0185] After the device is installed, it is placed for a preset time, which is more than 1 year.

[0186] This embodiment adopts a design that can move in a circle around the tree and has an upward and downward telescopic design to adapt to different terrain slopes, especially mountainous areas with slopes greater than 15 degrees. The inner ring design with adjustable length and close fit to the bark is used to adapt to the bottom of the tree trunk (5 meters above the ground) which is not always perfectly round. cm -10 cm The expanded mesh structure can adapt to the shape of the tree canopy and enhance the stability of the overall structure.

[0187] According to the bottom of the tree (5 cm -10 cm The device adjusts the number of retractable extension rods (n) to meet the litter collection needs of trees with different diameters at breast height. The extension rods are designed in 1m increments, and are extended meter by meter according to the canopy radius. By continuously increasing the number of extension rods, the vertical projection of the circular edge must completely include the drip line and extend 10 meters beyond the drip line. cm The collection net is also laid with 1.2 m To fill the gaps between the rings, lay the outer rings one by one, and then cover the upper layer of the joints with strips (15 cm Width) sealing net.

[0188] Each extension pole has a retractable mechanism at the bottom to adapt to diverse forest floor conditions, making the horizontal extension pole more stable. The dense mesh fabric adapts to various climate conditions and automatically filters precipitation (rain, hail, snow, etc.).

[0189] 1.2 m wide (loop-laid) and 15 cm The wide mesh (covering the upper layer at the junction of the rings) is foldable, and the extension poles are removable, making it easy to transport and install. All components of the device, including the mesh or the barrier material (non-mesh dense cloth), can be recycled into other forest species after litter harvesting. Furthermore, other intelligent sensing devices can be added in the future as needed.

[0190] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A forest litter collection device, characterized in that: include: An adjustable inner ring (400) is sleeved on the outside of the tree trunk; A retractable extension rod (700), wherein a plurality of retractable extension rods are provided and arranged around the tree trunk, wherein one end of the retractable extension rod is connected to an adjustable inner ring (400), and the length of the retractable extension rod is changed by stretching or squeezing the retractable extension rod, and a retractable movable device (500) is provided below the retractable extension rod (700), and the retractable extension rod is supported by the retractable movable device, and the height of the retractable movable device is adjustable; Extension rods (800), the extension rods being provided with at least one group, wherein the extension rods in one group are connected to the telescopic extension rod, and the extension rods in the remaining groups are connected end to end, and a telescopic device (600) is provided below the extension rods, supporting the extension rods through the telescopic device, and the height of the telescopic device is adjustable; A collecting net (900), the collecting nets being laid on the telescopic extension rod and the extension rod respectively, being fixed to the telescopic extension rod or the extension rod, and a sealing net (1100) being laid between adjacent collecting nets; The adjustable inner ring comprises a flexible belt (410) and an adjustable buckle (420), wherein the adjustable buckle is fixedly connected to one end of the flexible belt, and the other end of the flexible belt passes through the adjustable buckle to form a flexible belt loop, and the size of the flexible belt loop is fixed by the adjustable buckle contacting the side of the flexible belt; The telescopic extension rod comprises a connecting rod (710) and a telescopic elastic member (720), wherein the telescopic elastic member (720) is connected to one end of the connecting rod (710), and the telescopic elastic member is connected to the adjustable inner ring; The telescopic moving device (500) comprises a moving portion (520) and a first mounting portion (510), the first mounting portion being fixedly connected to the connecting rod, and the moving portion being telescopically connected to the first mounting portion via a buffering adjustment portion (1500) to buffer the impact force of fallen litter on the collection net (900) or the sealing net (1100) when collecting fallen litter; The telescopic device (600) comprises a support portion (620) and a second mounting portion (610), the second mounting portion (610) being fixedly connected to the extension rod, and the support portion being telescopically connected to the second mounting portion via a buffer adjustment portion; The buffer adjustment unit includes: A guide portion (1510), the guide portion (1510) being rotatably mounted on the first mounting portion or the second mounting portion; A fixing plate (1520) fixed to the bottom of the guide portion; A buffer guide rod (1550), the buffer guide rod (1550) being fixedly mounted on both ends of the fixed plate, and a buffer elastic member (1530) being provided on the outside of the buffer guide rod (1550); A movable plate (1540) is connected to the buffer elastic member, and an adjustment portion (1560) is provided at a position of the movable plate corresponding to the guide portion, the adjustment portion being threadedly connected to the moving portion or the supporting portion.

2. A forest litter collection device according to claim 1, characterized in that: The adjustable buckle comprises a box body (421), a first insertion hole (422) is provided in the box body (421) for one end of the flexible belt to pass through, and a fixing pin (423) is provided in the box body, and the one end of the flexible belt is fixed to the box body (421) by the fixing pin; A spring tongue (424) is also provided in the box body, and the spring tongue is rotatably connected to the box body. A toggle portion connected to the spring tongue is also provided on the outside of the box body, and the spring tongue is driven to rotate by rotating the toggle portion on the outside. A compression spring is also provided at the connection between the spring tongue and the box body, and a serrated portion matching the spring tongue is provided on the belt surface of the flexible belt.

3. A forest litter collection device according to claim 1, characterized in that: The retractable elastic member is fixed to the adjustable inner ring via a fixing assembly (1200); The fixing assembly (1200) comprises: a second fixing member (1220), the second fixing member being connected to the telescopic elastic member, and a first groove partially accommodating the flexible belt being provided on a side of the second fixing member away from the telescopic elastic member; a first fixing member (1210), the first fixing member being cooperatively connected with the second fixing member at a side away from the retractable elastic member so as to clamp the flexible belt portion therein; A fastener (1250) is arranged inside the first fixing member, and the fastener has a connecting portion that penetrates the first fixing member (1210) on a side close to the first fixing member. The fastener is movably connected to the first fixing member through the connecting portion, and an end portion of the connecting portion is provided with an interference portion (1260).

4. A forest litter collection device according to claim 3, characterized in that: The retractable elastic member comprises a spring (721), with first hooks (722) provided at both ends of the spring; A second hanging ring (1230) is provided on the outer side of the second fixing member, and a hook at one end of the spring is hung on the second hanging ring; A first hanging ring (714) is provided at one end of the connecting rod, and a hook at the other end of the spring is hung on the first hanging ring.

5. The forest litter collection device according to claim 3, characterized in that: A hook assembly (1400) is provided at one end of the connecting rod away from the telescopic elastic member and at both ends of the extension rod, the hook assembly comprising two sets of third hooks arranged in opposite directions; A second hook (1240) is provided on the first fixing member; The collecting net is stretched and fixed by the second hook and the third hook on the connecting rod or two groups of third hooks on the extension rod, and the sealing net is stretched and fixed by the third hook on the connecting rod and the third hook on the extension rod or the third hook on the adjacent extension rod.

6. The forest litter collection device according to claim 1, characterized in that: The collecting device further comprises a shielding device (300), the shielding device being arranged around the outer side of the outermost collecting net; The shielding device includes: A plurality of fixed piles (310) are provided, and the plurality of fixed piles surround the outer side of the outermost collection net and are fixed on the ground; A shielding cloth (320), which is arranged around the outer side of the outermost collecting net and is fixed to the fixing piles; A fixing opening is provided at the outermost portion of the collection net at a position corresponding to the fixing pile, and the collection net is connected to the fixing pile through the fixing opening; The shielding cloth is connected to the outermost collecting net via folding buckles.

7. A method for collecting forest litter, characterized in that: The collection method uses the collection device according to any one of claims 1 to 6, and the collection method includes: Clear and cut the shrubs and grasses on the forest floor; Install an adjustable inner ring around the base of the trunk of a specific tree species; Calculate the number of telescopic extension rods required based on the size of the tree crown. Fix the telescopic extension rods one by one on the inner ring device with the tree trunk as the center. Then, install the telescopic moving device on each telescopic extension rod. Start fixing the collection net from the first telescopic extension pole, and with the tree trunk as the center, lay the dense net one by one and fix it until it covers the first telescopic extension pole again. After fixing, cut the dense net. The final dense net laid is in a circular ring shape, forming the first layer of collection net ring; According to the radius of the drip line (200) from the trunk, the number of extension rods that need to be added is calculated and the calculation result of the number of extension rods is obtained. The calculation method is as follows: ； in, R is the radius of the drip line from the trunk, in units of m ; n To increase the number of extension rods, n Get the smallest positive integer; L 1 is the length of the extension rod, in units of m ; L 2 is the length of the telescopic extension rod, in units of m ; A It is the sum of the connection gaps between the extension rod and the telescopic extension rod, and between adjacent extension rods, in units of m ; After calculating the number of extension rods, first connect the extension rods to the telescopic extension rods one by one, then lay the collection net on the extension rods connected to the telescopic extension rods in the same way as the first layer of collection net rings to form a second layer of collection net rings, then lay the sealing net at the joint of the first and second layers of collection net rings to form a sealing net ring, and fix the telescopic device on the extension rods; repeat this process until all the preset number of extension rods are installed, where the preset number is the calculated number of extension rods that need to be added; Install the shielding device. On the periphery of the drip line, along the periphery of the outermost collection net ring, with the tree trunk as the center, install fixed piles respectively; around the periphery of the fixed piles, successively surround the shielding cloth to form a circular ring. The outer collection net is fixed to the fixed piles through the fixing holes; After the device is installed, it is placed for a preset time, which is more than 1 year.

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