40 results about "Twig" patented technology

1. Name of the product in this design: Electric scissors. 2. Purpose of this design: For trimming and pruning tree branches. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model relates to tree insect prevention technical field, especially a kind of tree insect prevention pendant for landscaping, including outer tube, the inner tube is slidably arranged in the outer tube, the inner tube circumference is evenly provided with several outer holes, the inner tube bottom is installed with the box corresponding with outer hole, the upper end of the outer tube rotationally arranged is provided with support frame, the upper end of the support frame is fixedly installed with cross block, adjustable length and the locking hoop of adjustable length are installed on the cross block, effectively solve the problem that the liquid medicine in the prior art is in the frame exposed, will lose due to shaking, dumping or natural volatilization and, the force that pendant swings with wind is directly applied on branch, cause scratch or breakage to branch.

The application provides a garden residual leaf collecting device based on intelligent visual identification, and relates to the technical field of garden greening equipment. The device comprises a base, two installation blocks arranged in the base, two collecting claws arranged at the front of the base, a crushing wheel arranged in the base, and a mounting frame arranged in the base. In the application, the two pressing plates are gathered in the middle by the sliding block, so that the two pressing plates can extrude the crushed dry branches and residual leaves, avoiding the scattering of the residual leaves and reducing the collection space occupied by the residual leaves. The residual leaf grabbing action and the extruding action are combined in sequence by mechanical transmission, so that the step-by-step operation is omitted, the structure of the residual leaf grabbing and collecting is simplified, the assembly and use are convenient, the residual leaves are mixed with more branches, the residual leaf collecting and processing efficiency is improved, the residual leaves occupy a large space after being collected, the device is not heavy and is easy to control.

The application relates to the field of seed picking, in particular to an automatic sand-growing sophora seed vibration picker. The automatic sand-growing sophora seed vibration picker is characterized in that fixed jaw arms and movable jaw arms jointly form a clamping forceps structure which can be opened and closed, so that the inner layer of branches can be clamped after passing through dense branches; a vibration motor is used to replace manual shaking of the branches at a stable vibration frequency and amplitude; a collecting hopper and a mesh bag are arranged below the vibration motor to collect the seeds shaken and picked; the collecting hopper and the mesh bag are arranged in a foldable structure and can pass through the dense branches together with the fixed jaw arms and the movable jaw arms; in addition, a large amount of branches, leaves and other foreign matters falling along with the seeds can be intercepted by a hollow cover; the foreign matters such as branches and leaves can be quickly poured out and cleaned after the collecting hopper is turned over; the operation is simple, the picking is efficient, and the technical problems that the force is difficult to control and the inner layer of branches is difficult to reach during manual picking are solved.

This invention discloses an acupoint warming patch composed of five kinds of traditional Chinese medicine, belonging to the technical field of external health care patches. The patch contains a medicinal pack made of mugwort leaves, ginger, scallion, cinnamon twig, and angelica root, with a weight ratio of 1:1:1:1:1. The mugwort leaves are from the Dragon Boat Festival, the ginger is peeled, the scallion is from seasonal scallions, and the cinnamon twig is a tender branch of a cassia branch. These five herbs are both medicinal and edible, and are used for treating colds caused by wind and cold. This acupoint warming patch provides heat therapy, warming and unblocking the meridians, dispelling cold and relieving exterior symptoms, and warming and supporting the body's defensive energy. It is applied to the Dazhui acupoint to prevent colds caused by wind and cold, is gentle on the outside, and has no side effects.

This invention discloses an intelligent tree branch pruning device based on a crack-inducing explosive charge. A calibration mechanism is located on the mover, while the crack-inducing pruning mechanism and detection mechanism are both located on the side of the calibration mechanism away from the mover. The calibration mechanism drives and connects to the detection mechanism, which in turn drives and connects to the crack-inducing pruning mechanism. A controller moves the mover to a position below the branch to be pruned, driving the detection mechanism to acquire the branch's position information. Based on the position information, the controller controls the calibration mechanism, which in turn drives the crack-inducing pruning mechanism to clamp and connect to the branch. The controller also controls the separation of the calibration and crack-inducing pruning mechanisms after the crack-inducing pruning mechanism has clamped and connected to the branch, and then controls the mover to a safe position before activating the crack-inducing pruning mechanism. The crack-inducing pruning mechanism in this invention generates a symmetrical shock wave, impacting and cutting the branch. The operation eliminates the need for workers to climb and cut, reducing pruning difficulty and avoiding safety risks.

1. The name of the design product: chain saw. 2. The use of the design product: the design product is used for cutting or repairing branches, vines, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

This application relates to the field of traditional Chinese medicine technology, specifically to a method for preparing and detecting willow twig extract and its preparations. The preparation method specifically includes the following steps: (1) Willow twig slices are decocted twice with water, filtered, and the filtrates are cooled to room temperature and then combined to obtain the willow twig extract; (2) The decoction is concentrated under reduced pressure and low temperature to obtain an extract extract with a yield of 3.8%~7.0%; the extract extract is obtained; (3) The extract is prepared into the desired dosage form. This application selects salicin as the indicator component of willow twig extract and its preparations, and conducts a quantitative determination method of ultra-high performance liquid chromatography for the content determination of willow twig extract and its preparations, and formulates quantitative standards for willow twig extract and its preparations, providing a scientific basis for the establishment of quality standards for willow twig extract and its preparations. A characteristic spectrum of willow twig medicinal materials is established, and a material basis study is conducted, and the chemical components corresponding to the characteristic peaks are identified.

The invention discloses a sex attractant for yellow rice borers as well as a preparation method and application of the sex attractant, and relates to the technical field of agricultural pest monitoring, prevention and control. The sex attractant comprises an active component which is prepared from (Z)-dodecyl-9-ene-1-yl acetate, (E)-dodecyl-9, 11-diene-1-yl acetate and (7E, 9Z)-dodecyl-7, 9-diene-1-yl acetate, and the sex attractant is prepared from an active component which is prepared from the following components of (Z)-dodecyl-9-ene-1-yl acetate, (E)-dodecyl-9, 11-diene-1-yl acetate and (7E, 9Z)- According to the sex attractant disclosed by the invention, aiming at the current sugarcane area dominant population, the three active components have a synergistic effect, so that the trapping activity of the current sugarcane area dominant population is remarkably improved, and the problems that the trapping activity is low and the specificity is poor due to the fact that a control object is not matched with the dominant population in the existing sex attractant product are solved. Field trials show that the trapping quantity of the sex attractant provided by the invention on the yellow rice borers is obviously higher than that of a control group, the sex attractant has extremely high population specificity, and accurate monitoring and efficient trapping and killing of yellow rice borer populations can be realized.

The utility model belongs to the technical field of watering greening trees, and particularly relates to an adjustable watering device for greening trees, which includes a water pipe arranged below a water accumulation mechanism. The water pipe is connected to a water storage component. The water storage component includes a mounting seat, the mounting seat is threadedly connected to the top end of a metering cylinder, the bottom end of the metering cylinder is threadedly connected to the top end of a base, a solenoid valve is arranged at the bottom end of the base, one end of the solenoid valve is connected to one end of a three-way pipe, water delivery pipes are arranged on both sides of the other end of the three-way pipe, the water delivery pipes are connected to a watering component, and a limiting component arranged at one end of a second water belt is connected to a first water belt. The limiting component includes a limiting seat, a through hole is centrally formed in the limiting seat, the inner diameter of the through hole is not less than the width of the first water belt, and a pressing plate slidably arranged in the through hole presses and limits the first water belt, solving the problems that the water storage component adopts a single volume design and cannot be flexibly adjusted according to the bearing capacity of the trees, easily causing dropping and pressing damage to the tree branches, and the water delivery pipeline can only water fixed positions, resulting in uneven watering.

The application discloses a high-fuel-property tea carbon briquette with tea aroma and a preparation method thereof, and belongs to the technical field of fuel preparation. In the preparation, old leaves and branches on tea tree branches are separated, and are treated by two times of fixation; during the fixation, tea aroma solution is collected by condensing tail gas; the old leaves and branches after the second fixation are treated by gasification to obtain tea carbon and tea tar; the tea tar is separated by vacuum distillation to obtain light phenol solution and heavy substance solution; the heavy substance solution is dried to obtain heavy substance solid, which is mixed with the tea carbon to obtain carbon powder; a glue is obtained by adding the light phenol solution, polyvinyl methyl ethylene glycol, starch, polycondensation and gelatinization reaction with a sodium hydroxide solution as a solvent; and the carbon powder, the glue, the tea aroma solution and water are mixed and formed to obtain the briquette. The preparation method realizes high-value utilization of waste pruned tea tree branches, and the obtained briquette has the characteristics of tea aroma, high calorific value, low ignition point and long combustion time.

A pruning head able to self-ascend and self-descend a tree trunk to prune branches from the trunk. Provided is a chassis supporting a driving mechanism that has a motor driven traction member to grip onto the tree trunk and control the ascend and 5 descend. A plurality of blades are provided each to locate against a part of the circumferential surface of the trunk. The blades are independently suspended from the chassis to drive through the branches to close prune them from the trunk. - 49 5 20 26 20 48 87 24 J un 2 02 6 2 0 2 6 2 0 4 8 8 7 2 4 J u n 2 0 2 6

This invention discloses a compound moxa stick for warming yang and unblocking obstruction, its preparation method, and its application in improving reproductive system function. It belongs to the field of external preparations of traditional Chinese medicine. Addressing the problems of limited improvement effects of pure moxa sticks, lack of systematic design in compound moxa stick formulations, unclear synergistic effects between components, large fluctuations in conditioning effects, and difficulty in balancing conditioning effects and safety, this invention uses specific weight proportions of Artemisia argyi, Cyperus rotundus, Alpinia galanga, Cinnamomum cassia, Zingiber officinale, Illicium verum, Cinnamomum cassia twig, Spatholobus suberectus, Caesalpinia sappan, Smilax glabra, Euonymus fortunei, Citrus aurantium, Amomum villosum, Citrus reticulata peel, and Atractylodes lancea to prepare a compound moxa stick. The components synergistically enhance each other, and this product is used to prepare a moxibustion intervention product for improving the reproductive function of mammals. It can stably improve female ovarian reserve function and male asthenospermia, simultaneously regulate reproductive-related hormone levels, repair pathological damage to reproductive organs, and improve the quality of reproductive cells.

This invention discloses a traditional Chinese medicine composition for treating acute and subacute cough after a cold and its application. The traditional Chinese medicine composition includes the following components: 10-15 parts of Perilla frutescens seed, 10-15 parts of Perilla frutescens stem, 10-15 parts of Paeonia lactiflora, 10-15 parts of processed Eriobotrya japonica leaf, 6-9 parts of Prunus armeniaca seed, 6-9 parts of Platycodon grandiflorus, 10-15 parts of Cinnamomum cassia twig, 10-15 parts of processed Pinellia ternata, 6-9 parts of Fritillaria cirrhosa, 15-30 parts of Poria cocos, 6-9 parts of Citrus reticulata peel, 6-9 parts of Citrus reticulata fibrosum, 9-15 parts of Scutellaria baicalensis, and 6-9 parts of processed Glycyrrhiza uralensis. The traditional Chinese medicine composition of this invention follows the core treatment principle of "promoting lung function and relieving cough, resolving phlegm and soothing the throat, and clearing away residual pathogens". Targeting the pathogenesis characteristics of acute and subacute cough after a cold, the principal and assistant herbs directly target the core symptoms of cough, quickly relieving acute manifestations such as cough and sore throat; the adjuvant herbs work on multiple targets, taking into account resolving phlegm, clearing heat, and unblocking the meridians, adapting to different syndrome types and disease stages, and preventing prolonged cough; the guiding herbs harmonize the properties of the herbs, mildly protect the body's vital energy, avoid the harshness of the medicine damaging body fluids, and at the same time eliminate the source of phlegm production.

The utility model relates to the technical field of fruit tree planting, especially to tree branch pulling device convenient to adjust, which comprises a binding ring, a connecting assembly, a branch hook and a limiting assembly. The outer lateral wall of the binding ring is connected with a fixed block, the fixed block is connected with a fixed rod, and the fixed rod is internally provided with a rotating groove a. The connecting assembly is connected with the fixed rod. The connecting assembly comprises a mounting rod, a limiting ring a, a rotating groove b, a connecting rod, a rotating ring a and a limiting ring b. One end of the mounting rod is connected with the connecting rod, the connecting rod is peripherally connected with the rotating ring a, the limiting ring a and the limiting ring b are respectively connected with the two ends of the mounting rod periphery, and the limiting ring a is provided with the rotating groove b. The branch hook is connected with the other end of the mounting rod. The limiting assembly is connected with the periphery of the mounting rod. The utility model is convenient to rotate and adjust the angle, so that the branch hook is adapted to fruit tree branches of different angles. The limiting assembly is connected with the mounting rod, so as to avoid the falling of the branch hook due to the wind phenomenon and conveniently increase the connection stability of the branch hook and the fruit tree branches.

1. The name of the design product: tree pole shears. 2. The use of the design product: for pruning branches, tree poles. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The utility model provides a kind of barking knife and equipment, to solve the complex difficult machining of existing tool structure, and cannot take into account large area peeling and barking curved position peeling, practicality is poor Problem. The tool includes cutter head, and the center of cutter head is equipped with step groove, and there is circular hole in the center, and recess is equipped in edge position, and bolt hole is opened in recess side face, and bolt is worn in bolt hole, blade is worn in bolt, and blade is detachably arranged in recess by nut on bolt, and blade edge protrudes cutter head end face and edge. The equipment uses the tool, so that cutter head end face can be peeled on large area to bark; face local branch bifurcation curved position, the cutter head is erected, using the characteristics that blade edge protrudes cutter head edge, can be peeled on curved or small area part of tree. The utility model structure is relatively simple, and processing is convenient, and can simultaneously meet the peeling demand of large area and local branch bifurcation curved position, and practicality is significantly improved.

This utility model discloses an overhead shears for pruning branches of *Vernicia fordii*, relating to the technical field of pruning tools. It includes a blade holder, which is Z-shaped overall. A horizontal groove is formed in the middle of the upper end, extending through the front end, and a vertical mounting groove is formed at the middle connection point. This utility model provides strong power for the scissor blades and the blade edge on one side of the blade holder to merge by installing a telescopic rod on the top surface of the lower end of the blade holder, enabling the cutting of thick branches. The funnel-shaped structure and nut at the lower end of the connecting tube facilitate the installation of the connecting rod, making it easier to control the position of the blade holder with both hands. The telescopic rod, slider, stop rod, spring, trapezoidal groove one, and trapezoidal groove two work together to control the up-and-down movement of the scissor blade handle, enabling the scissor blades to close and separate from the blade holder. The tension spring facilitates the quick reset of the scissor blades, ultimately solving the problem of insufficient shearing force in overhead pruning.

The application discloses a pruning device for garden greening tree breeding, and relates to the technical field of tree breeding pruning, which comprises an arm sleeve and a fixing rod, the fixing rod is installed at the front end of the arm sleeve, small and large cutting pieces are rotationally installed at the bottom of the fixing rod, and a first torsional spring is arranged between the small and large cutting pieces, the first torsional spring resets the small and large cutting pieces, a rear handle is installed at the bottom of the front end of the arm sleeve, and a worker presses the surface of the rear handle with the thumb and the web space part as a force point, so that the worker can easily cut off the branches by holding the device with one hand, compared with the existing pruning tool, the force mode is changed, the worker does not need to frequently bend the arm, wrist fatigue is avoided, and the worker can operate with one hand to release the other hand to adjust the angle of the required cut-off branches, so that the growth angle of the branches is prevented from blocking the small and large cutting pieces from extending to cut off.

The utility model relates to the field of tea-oil tree seedling grafting equipment, concretely relates to a cutting device for stock of tea-oil tree seedling grafting, including tool rest, the upper end of tool rest is provided with clamping screw rod, the outside one side of clamping movable bearing is provided with clamping movable bearing, the both sides of clamping movable bearing are provided with holding arm, the one end of holding arm is provided with clamping tool, the one side annular vertical through -going of clamping tool front end is provided with pivot, the bottom of pivot is provided with anti -drop piece, the upper and lower ends of pivot are provided with resistance piece, the upper end of clamping tool front end is provided with limit frame, the utility model, through clamping screw rod, clamping movable bearing, holding arm, clamping tool constitute the clamping system of clamping tool, cooperate pivot, resistance piece, anti -drop piece, realize the stable clamping of the branch of stock, can adjust resistance piece angle and adapt to different branches, guarantee the stable position of stock in the cutting process, provide the basis for accurate cutting, improve the reliability of tea-oil tree seedling grafting stock cutting.

The present application relates to the technical field of branch breaking, and particularly relates to a forestry tending branch breaking and collecting integrated mechanical device capable of preventing jamming, comprising a shell, an inlet cavity and a crushing cavity are arranged in the shell, a discharge pipe is fixedly installed on the sidewall of the shell, the crushing cavity is located between the inlet cavity and the discharge pipe, a branch collecting assembly is movably installed in the inlet cavity, and the branch collecting assembly comprises a transmission belt and a sliding plate. The segmented assembly moves along with the transmission belt, so that the segmented assembly continuously and dynamically shears and segments the branches, ensures that the branches are dislocated and sheared by the segmented assembly during movement, thereby realizing the consistency of the thickness of the branches when entering the crushing cavity, the movement of the first and second blades to the middle of the transmission belt adjusts the staggered engagement scraping of the first, second and third blades on the branches to parallel engagement scraping, thereby realizing more intensive and uniform segmentation pretreatment, and further improving the uniformity and stability of the segmentation scraping.

This utility model relates to the field of plant branch measurement technology and discloses an experimental device for in-situ measurement of branch respiration. It includes a transparent PC barrel. An aluminum alloy bottom cover is fixedly connected to the front end of the transparent PC barrel via screws and nuts. A top cover is rotatably connected to the rear end of the transparent PC barrel via a hinge. The upper end of the top cover is fixedly connected to the transparent PC barrel via wing screws and nuts. Two quick-connect connectors are provided on the top cover, and air tubes are connected to each quick-connect connector. One end of the air tube is connected to a manual switching valve. A gland is provided on the top cover. A flange is fixedly connected to the lower end of the transparent PC barrel via screws. An adjusting block is fixedly connected to the flange via screws. A clamping component is rotatably connected to the lower end of the adjusting block via a rotating shaft. Fasteners are provided on the adjusting block. A tripod is installed at the lower end of the clamping component. This utility model is characterized by its strong practicality and accurate measurement data.

1. Name of the product in this design: Carbon fiber telescopic pole. 2. Purpose of this design: A landing net pole used for pruning tree branches, picking fruit, and catching fish at heights. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key design points: Design 1 front view. 5. Design 1 is designated as the basic design.

This invention discloses a method for semi-wild cultivation of Dendrobium officinale, comprising the following steps: Step 1, seedling and substrate preparation: cutting sections of Pinus massoniana trunks, disinfecting and soaking them in pine needle extract, and then air-drying them for later use; selecting Dendrobium officinale seedlings, disinfecting and treating the roots with rooting agents for later use; Step 2, seedling planting and fixing: attaching the seedling roots to the bark surface of the trunk section, and covering the root attachment area with a moisturizing substrate; then fixing the seedling stems, leaves, and roots at corresponding positions on the upper and lower parts of the trunk section with fixing ropes; Step 3, movable hanging: hooks are pre-installed on the trunk section, and the trunk section is hung on a greenhouse, living tree branches, pergola, or wall embedded parts using the hooks; Step 4, cultivation period management: maintaining air humidity and trunk surface moisture through spraying, and regularly replenishing nutrients; Step 5, harvesting and trunk maintenance. This invention utilizes a section of Masson pine trunk as a movable epiphytic carrier, eliminating the need to rely on living trees or rock walls. By fixing the stems, leaves, and roots at the top and bottom respectively, it ensures plant stability, significantly improves cultivation flexibility and space utilization, and effectively enhances the survival rate and medicinal quality of Dendrobium officinale.

This utility model discloses a pipeline cleaning and inspection robot, relating to the technical field of pipeline maintenance equipment. The robot includes a main unit and a walking unit, with the walking unit located below the main unit. The main unit is equipped with an adjusting motor, the output of which is connected to an adjusting screw. The robot uses the adjusting motor to drive the adjusting screw, causing a slider to move on the screw, which in turn moves the crossbar and the connecting shell up and down. This allows the position and height of the main unit to be adjusted according to different pipe diameters, improving the robot's adaptability to various pipe sizes. A working motor drives a crushing mechanism; the combination of a serrated cutter head and a spiral pattern not only crushes and cleans dirt and hard objects inside the pipe but also powerfully crushes tree branches, effectively entangles and cuts plant roots, thoroughly removing impurities from the pipe and ensuring its unobstructed flow.

This utility model discloses a wildlife burrowing structure for landscape gardens, relating to the field of landscape design technology. It includes a biomimetic tree trunk with first and second biomimetic branches. A first tree hole is formed at the bottom of the trunk, and a second tree hole is formed in the middle. A third and fourth tree hole are formed on the first and second biomimetic branches, respectively. Hanging holes are also formed on both branches. This utility model, by creating tree holes and bird nests of different heights on the biomimetic trunk and branches, simulates traditional tree holes and bird burrows. It can serve as nests for both reptiles and wild birds, facilitating better coexistence of different species of wildlife in the landscape garden. Compared to existing common animal burrowing structures, this utility model has a wider range of applications and, due to its three-dimensional design, can improve the space utilization rate of the landscape garden.

This invention discloses a biomimetic tree communication tower, comprising a biomimetic trunk, biomimetic branches, and biomimetic leaves. A communication antenna is mounted on the biomimetic trunk. The roots of the biomimetic branches are rotatably connected to the biomimetic trunk via a horizontal rotating shaft. The biomimetic trunk is cylindrical, and the horizontal rotating shaft is controlled by a rotating device located within the cylindrical body to rotate relative to the biomimetic trunk. This invention achieves active removal of deposits from the leaf surface by incorporating a rotatable biomimetic branch and a matching rotation drive device within the biomimetic tree communication tower. The horizontal rotating shaft drives the biomimetic branch to flip or swing, and the acute angle design between the branch and the rotating shaft allows for alternating exposure of the front and back sides of the leaves, enabling double-sided cleaning with the aid of natural rainfall.

The invention relates to agriculture, namely to the pruning of tree branches with directed fall thereof in cases where plants or cars are located beneath the branch being cut.The process, according to the invention, consists in determining the location of the branch to be cut, estimating the weight of the branch to be cut, placing a fork-shaped support above the cutting site, capable of supporting a double weight of the branch to be cut, at the same time the support is fixed to the upper end of a ladder placed against the branch, near the cutting site. The first rope is then thrown over the fork and tied with the first end to the tree trunk at a height of 1…1.3 m from the ground, and the second end is tied to the branch to be cut. The second rope is then thrown over the middle part of the branch being cut, its ends are aligned and tied in a knot, which is moved as close to the branch as possible, its ends are then tied to stakes, preventively driven into the ground, positioned along a line perpendicular to the projection of the branch on the ground, on the opposite sides of this projection, at a distance almost equal to the distance between the ground and the branch. From one side and the other of the cutting place, the ends of a third rope are also tied to the branch on both sides of the cut. In addition, between the cutting site and the tie-in point of the second end of the first rope, an end of a fourth rope is tied, having a length almost equal to half the distance between the ground and the branch, with a weight at its lower end almost equal to half the weight of the branch being cut. At the same time, the ropes are chosen so that they are strong enough to support the estimated triple weight of the branch being cut. Next, a cut is made in the branch, then the ends of the second rope are pulled until the branch breaks, after which the third rope is cut with a knife, the ends of the second rope are then untied from the stakes and with its help the cut branch is moved to the place designated for its fall. Finally, the first end of the first rope is untied from the tree trunk and the cut branch falls to the ground in the designated place.

This disclosure relates to a chestnut collecting device, belonging to the technical field of agricultural auxiliary collecting devices. It includes a first fixed ring and a second fixed ring, hinged together by pins to form an openable and closable annular structure. Both the first and second fixed rings are provided with multiple sets of oblique mounting screw holes. The first fixed ring is provided with a fixing buckle, and the second fixed ring is provided with an adjusting buckle. An adjusting band is fixedly provided on the fixing buckle to cooperate with the adjusting buckle. The mounting screw holes are connected to a screw rod supporting a canvas. The canvas covers the screw rod, forming a conical collecting surface. The hinged openable and closable annular structure of the first and second fixed rings, along with the adjusting band, allows the collecting device to adapt to tree trunks of different diameters. Simultaneously, the conical collecting surface of the canvas covering the screw rod forms a funnel-shaped chute sloping outwards and downwards from the tree trunk surface. Chestnuts falling on the trunk or branches naturally roll onto the canvas surface and then gather along this inclined surface, thus effectively collecting them.