Auxiliary trunk shape fixing device for forest sustainable operation

Abstract

The invention relates to the technical field of trunk shape fixing devices, in particular to a forest sustainable management auxiliary trunk shape fixing device which comprises a plurality of extrusion rings, each extrusion ring is formed by mutually fixing two semi-rings, a plurality of pulling ropes are fixed to the outer wall of each extrusion ring, positioning needles are fixed to the tail ends of the pulling ropes, and the outer walls of the two semi-rings are fixed to the outer wall of each extrusion ring. Two groups of positioning plates are arranged in each extrusion ring, each group comprises two positioning plates, the two groups of positioning plates are arranged and are in intermittent contact with a tree, so that the situation that bark is damaged due to the fact that the positioning plates press the tree for a long time is effectively avoided, in addition, flexible surfaces are further arranged on the positioning plates, and the flexible surfaces are arranged on the positioning plates. Therefore, the situation that the bark holes are blocked and air exchange is hindered due to the extrusion effect can be prevented, and meanwhile the adverse effect on the tree in the trunk shape fixing process can be reduced.

Description

Technical Field

[0001] The invention relates to the field of trunk shaping devices, and in particular to a trunk shaping device for auxiliary use in sustainable forest management. Background Art

[0002] Sustainable forest management is an act that includes administrative, economic, legal, social, technical and scientific means. It is a planned human intervention measure aimed at protecting and maintaining the various functions of forest ecosystems, and at the same time meeting the growing material and environmental needs of mankind in the long term by developing species with social, environmental and economic value. When humans use trees in forests, they often need to process the wood, but trees will produce various shapes when they grow naturally. These trees may not necessarily reach the ideal expected state we need to process after they grow. The trunk shaping device is a device specially designed for use in the growth process of forest trees to assist trees in forming an ideal trunk shape. The device guides and regulates the growth of trees by physical or mechanical means to optimize the growth form of trees and improve the quality of wood. It can also reduce waste and energy and improve the utilization rate of wood by precisely controlling processing parameters.

[0003] When the shaping device is in close contact with the surface of the tree, it will cause many harms to the tree. The tree epidermis is distributed with lenticels, which are important channels for trees to exchange gases. The entry of oxygen and the discharge of carbon dioxide both depend on the lenticels. The close contact of the shaping device will block the lenticels and hinder gas exchange, making it impossible for the tree to respire and photosynthesize normally. Respiration provides energy for trees, and photosynthesis is the key to trees making organic matter. If the two are affected, it will disrupt the physiological functions of trees and cause the growth and development of trees to be hindered, which may manifest as slow growth, poor development of branches and leaves, etc.

[0004] In addition, due to long-term pressure and friction on the contact parts, tree tissues are easily damaged, cell structures are destroyed, leading to cell necrosis and the formation of local diseased areas, which not only affects the appearance of the tree, but also creates conditions for the growth of pathogens. After the pathogens multiply in large numbers, they will spread to the surrounding areas and cause more serious diseases. Ulcer spots often appear at the contact point between the shaping device and the tree trunk. This is a sign of the occurrence of the disease and may cause more extensive tree health problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an auxiliary trunk shaping device for sustainable forest management.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a trunk shaping device for auxiliary forest sustainable management, comprising a plurality of extrusion rings, each of which is composed of two half rings fixed to each other, a plurality of pull ropes are fixed on the outer wall of each extrusion ring, a positioning needle is fixed to the tail end of the pull rope, two groups of positioning plates are arranged inside each of the extrusion rings, each group of positioning plates has two, and the two groups of positioning plates are distributed up and down, a first electric push rod is fixed between the positioning plate and the extrusion ring, a flexible surface is fixed to the end face of the positioning plate, the flexible surface comprises a rubber sleeve, an installation cavity is provided inside the rubber sleeve, an opening is provided at the bottom of the installation cavity, absorbent cotton is fixed on the inner wall of the installation cavity, and a plurality of through holes are evenly provided on the side of the rubber sleeve away from the positioning plate.

[0007] Preferably, the interior of the positioning plate is hollow, the surface of the positioning plate is provided with a slide groove, the interior of the slide groove is slidably connected with a connecting rod, one end of the connecting rod is fixed with a first extrusion plate, the first extrusion plate is located inside the positioning plate, the other end of the connecting rod is provided with a lower pressure plate, the lower pressure plate is vertically slidably connected to the surface of the positioning plate, the connecting rod is slidably arranged on the bottom surface of the lower pressure plate, a spring is fixed between the connecting rod and the lower pressure plate, a second electric push rod is arranged between the lower pressure plate and the positioning plate, the surface of the positioning plate is provided with an inclined surface, and the fixed end of the second electric push rod is slidably connected to the inclined surface.

[0008] Preferably, a second extrusion plate is slidably connected below the first extrusion plate, the second extrusion plate is L-shaped, one end of the second extrusion plate is in contact with the rubber sleeve, and a push rod is fixed to the other end of the second extrusion plate, the push rod is inserted into the inside of the slide groove, a guide groove is provided on the inner wall of the slide groove, a guide pin is fixed on the side wall of the push rod, the guide pin is inserted into the inside of the guide groove, and the guide groove is used to guide the push rod to perform reciprocating lateral sliding.

[0009] Preferably, the guide groove includes a plurality of special-shaped grooves, the special-shaped grooves are in a V-shape with the V-shaped opening facing one side of the rubber sleeve, and adjacent special-shaped grooves are connected with vertical grooves.

[0010] Preferably, there are multiple absorbent cottons, and an isolation sheet is arranged between each of the absorbent cottons. The isolation sheet is fixed on the inner wall of the rubber sleeve, and the isolation sheet and the inside of the rubber sleeve are jointly provided with multiple drainage holes, and the drainage holes are L-shaped. The top end of the drainage hole is arranged to be connected with the inside of the absorbent cotton, and the bottom end of the drainage hole is connected with the outside of the rubber sleeve.

[0011] Preferably, a baffle is fixed on the top surface of the second extrusion plate, a water storage cavity is formed between the baffle and the second extrusion plate, a water guide plate is fixed on the bottom surface of the second extrusion plate, and a plurality of water permeable holes are opened on the bottom surface of the water storage cavity.

[0012] Preferably, the bottom surface of the second extrusion plate is in an inclined state, the water guide plate is an elastic plate, the length of the water guide plate is greater than that of the second extrusion plate, and the water guide plate has at least a first state and a second state. When the water guide plate is in the first state, the water guide plate is in close contact with the bottom surface of the second extrusion plate, and when the water guide plate is in the second state, there is a gap between the water guide plate and the bottom surface of the second extrusion plate.

[0013] Preferably, the through hole is a rectangular hole, and a first fixing block and a second fixing block are arranged inside the through hole, the first fixing block is fixed on the inner top surface of the through hole, and the second fixing block is fixed on the inner bottom surface of the through hole, and guide surfaces are provided at the docking positions of the first fixing block and the second fixing block, and a water-permeable groove is opened on the guide surface of the first fixing block.

[0014] Preferably, a filter screen is fixed on the inner wall of the water-permeable groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention sets two groups of positioning plates in the upper and lower parts of the extrusion ring. When performing the trunk shaping operation, only one group of positioning plates is controlled to contact the tree. When the preset time is reached, the other group of positioning plates is controlled to contact the tree. In this way, it can effectively avoid the situation where the bark is damaged due to the positioning plates pressing the tree for a long time. In addition, the present invention also sets a flexible surface on the positioning plate. When the tree is in the trunk shaping state, since the absorbent cotton in the flexible surface is made of porous material, external gas can enter the absorbent cotton from the opening at the bottom of the installation cavity and pass through the through hole to contact the surface of the tree. This is conducive to preventing the blockage of the pores and obstruction of gas exchange due to the extrusion effect, and is also conducive to reducing the adverse effects on the tree during the trunk shaping process.

[0016] Second, the second squeezing plate slides back and forth at the bottom of the first squeezing plate, intermittently squeezing the absorbent cotton, so that the absorbent cotton is in a loose and tight state, thereby improving the absorption effect of the absorbent cotton.

[0017] 3. The present invention arranges multiple absorbent cottons and arranges isolation sheets between the multiple absorbent cottons. During the downward extrusion process of the first extrusion plate, the isolation sheets can isolate the water flows discharged from different absorbent cottons, and the isolated water flows can be directly discharged through the drainage holes, thereby reducing the adverse effect of the upper extrusion on the absorption of the lower absorbent cotton. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the extrusion ring structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the extrusion ring of the present invention.

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the positioning plate of the present invention.

[0022] Figure 5 For the present invention Figure 4 A in the figure is an enlarged structural diagram.

[0023] Figure 6 It is a schematic structural diagram of the water guide plate of the present invention in the first state.

[0024] Figure 7 It is a schematic diagram of the structure of the first fixing block and the second fixing block of the present invention.

[0025] In the figure: 1. extrusion ring; 2. first extrusion plate; 3. pulling rope; 4. positioning pin; 5. positioning plate; 6. first electric push rod; 7. rubber sleeve; 8. installation cavity; 9. opening; 10. absorbent cotton; 11. through hole; 12. slide groove; 13. connecting rod; 14. lower pressure plate; 15. spring; 16. second electric push rod; 17. inclined surface; 18. second extrusion plate; 19. push rod; 20. guide groove; 21. guide pin; 22. special-shaped groove; 23. vertical groove; 24. isolation plate; 25. drainage hole; 26. baffle; 27. water storage cavity; 28. water guide plate; 29. ​​water-permeable hole; 30. gap; 31. filter screen; 32. first fixed block; 33. second fixed block; 34. water-permeable groove. DETAILED DESCRIPTION

[0026] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0027] like Figures 1 to 7 The device shown is an auxiliary trunk shaping device for sustainable forest management, including multiple extrusion rings 1, each of which is composed of two half rings fixed to each other, multiple pulling ropes 3 are fixed on the outer wall of each extrusion ring 1, and a positioning needle 4 is fixed to the tail end of the pulling rope 3. Two groups of positioning plates 5 are arranged inside each extrusion ring 1, and each group of positioning plates 5 has two, and the two groups of positioning plates 5 are distributed up and down. A first electric push rod 6 is fixed between the positioning plate 5 and the extrusion ring 1, and a flexible surface is fixed to the end face of the positioning plate 5, and the flexible surface includes a rubber sleeve 7. The inside of the rubber sleeve 7 has an installation cavity 8, and the bottom of the installation cavity 8 is provided with an opening 9. Water-absorbent cotton 10 is fixed on the inner wall of the installation cavity 8, and a plurality of through holes 11 are evenly opened on the side of the rubber sleeve 7 away from the positioning plate 5.

[0028] Specifically, in the prior art, when assisting in shaping trees, two half rings are firstly put on the trunk, and the two half rings are fixed to each other by bolts. Since different trees are of different thicknesses, a positioning plate 5 is provided on the half ring, and the positioning plate 5 is pushed to contact the surface of the tree by a first electric push rod 6. The two positioning plates 5 in the same group clamp the tree, so that the half ring can be fixed on trees of different thicknesses. After the positioning plate 5 is positioned, the extrusion ring 1 is pulled by the pull rope 3 to calibrate the position of the trunk, and the positioning pin 4 at the tail end of the pull rope 3 is fixed to the ground, thereby completing the auxiliary trunk shaping of the tree. Different from the prior art, in the prior art, when the tree is positioned, the positioning position is squeezed for a long time, which brings two problems: first, the bark is easily damaged, thereby affecting the normal growth of the tree; second, after the contact part is compressed, the lenticels will be blocked, hindering the growth of the tree. Gas exchange causes the respiration and photosynthesis of trees to be unable to proceed normally. To solve the above problem, the present invention sets two groups of positioning plates 5 in the upper and lower parts of the extrusion ring 1. When performing the trunk shaping operation, only one group of positioning plates 5 is controlled to contact the tree. When the preset time is reached, the other group of positioning plates 5 is controlled to contact the tree. In this way, it can effectively avoid the damage of the bark caused by the positioning plates 5 pressing the tree for a long time. In addition, the present invention also sets a flexible surface on the positioning plate 5. When the tree is in the trunk shaping state, since the absorbent cotton 10 in the flexible surface is made of porous material, external gas can enter the absorbent cotton 10 from the opening 9 at the bottom of the installation cavity 8, and pass through the through hole 11 to contact the surface of the tree. This is conducive to preventing the pores from being blocked and gas exchange from being hindered due to the extrusion effect, and is also conducive to reducing the adverse effects on the tree during the trunk shaping process.

[0029] As a further implementation scheme of the present invention, the interior of the positioning plate 5 is hollow, and a slide groove 12 is provided on the surface of the positioning plate 5. A connecting rod 13 is slidably connected inside the slide groove 12. A first extrusion plate 2 is fixed to one end of the connecting rod 13, and the first extrusion plate 2 is located inside the positioning plate 5. A lower pressure plate 14 is provided at the other end of the connecting rod 13. The lower pressure plate 14 is vertically slidably connected to the surface of the positioning plate 5. The connecting rod 13 is slidably set on the bottom surface of the lower pressure plate 14. A spring 15 is fixed between the connecting rod 13 and the lower pressure plate 14. A second electric push rod 16 is provided between the lower pressure plate 14 and the positioning plate 5. An inclined surface 17 is provided on the surface of the positioning plate 5, and the fixed end of the second electric push rod 16 is slidably connected to the inclined surface 17.

[0030] Specifically, it can be seen from the above-mentioned embodiment that by automatically intermittently switching the positioning position, long-term pressure on the same position of the tree can be avoided. However, when it rains, some rainwater will exist on the surface of the tree during the switching of the positioning plate 5. For trees with rough surfaces, the rainwater may not have an adverse effect on the positioning effect of the positioning plate 5. However, for trees with smooth surfaces, the water flow between the positioning plate 5 and the tree will form a layer of water film between the two. This layer of water film will hinder the positioning plate 5 from fitting closely to the surface of the tree. In wind and rain, the tree will swing under the action of wind. If the positioning plate 5 is difficult to fit closely to the surface of the tree, it may cause slippage between the positioning plate 5 and the tree, thereby affecting the final effect of fixing the trunk shape. In order to solve the above-mentioned problem, the present invention arranges absorbent cotton 10 in the flexible surface. Under the absorption effect of the absorbent cotton 10, the rainwater on the surface of the tree will be absorbed. However, if the rainwater is large, the absorbent cotton 10 will quickly become saturated. In order to further improve the adsorption effect of the absorbent cotton 10, the present invention arranges a first extrusion plate 2. After the positioning plate 5 is positioned, the first extrusion plate 2 is controlled to move downward along the rubber sleeve 7 to squeeze out the rainwater in the absorbent cotton 10, thereby improving the adsorption effect of the absorbent cotton 10. The specific working method is as follows: by starting the second electric push rod 16, under the extension effect of the second electric push rod 16 and the guiding effect of the inclined surface 17, the second electric push rod 16 and the lower pressing plate 14, the connecting rod 13, and the first extrusion plate 2 can be driven to move downward as a whole, and the absorbent cotton 10 is squeezed by the first extrusion plate 2, and the absorbent cotton 10 is moved downward on one side of the absorbent cotton 10 to push the rainwater in the absorbent cotton 10 downward, thereby increasing the absorption efficiency of the absorbent cotton 10. Furthermore, the surface of some trees may be uneven. When the first extrusion plate 2 squeezes the absorbent cotton 10, if it is pushed rigidly, it will cause extrusion damage to the protruding part of the tree surface. In order to reduce this damage, the present invention arranges a spring 15 between the first extrusion plate 2 and the lower pressing plate 14, so that the extrusion force of the first extrusion plate 2 is elastic extrusion, which is beneficial to protect the trees in the process of squeezing the absorbent cotton 10.

[0031] As a further implementation scheme of the present invention, a second extrusion plate 18 is slidably connected below the first extrusion plate 2, and the second extrusion plate 18 is L-shaped. One end of the second extrusion plate 18 is in contact with the rubber sleeve 7, and a push rod 19 is fixed to the other end of the second extrusion plate 18. The push rod 19 is inserted into the inside of the slide groove 12, and a guide groove 20 is opened on the inner wall of the slide groove 12. A guide pin 21 is fixed on the side wall of the push rod 19, and the guide pin 21 is inserted into the inside of the guide groove 20. The guide groove 20 is used to guide the push rod 19 to perform reciprocating lateral sliding.

[0032] Specifically, in order to further improve the absorption effect of the absorbent cotton 10, the present invention arranges a second squeezing plate 18 below the first squeezing plate 2. Before the first squeezing plate 2 descends, the absorbent cotton 10 is squeezed first to discharge part of the rainwater in the absorbent cotton 10, thereby improving the absorption effect of the absorbent cotton 10. The specific working method is as follows: during the downward movement of the first squeezing plate 2, the second squeezing plate 18 is driven to move downward synchronously, and the push rod 19 moves downward synchronously with the second squeezing plate 18. During the downward movement, the guide pin 21 slides in the guide groove 20. Under the guidance of the guide groove 20, the push rod 19 can be driven to perform reciprocating lateral sliding, so that the second squeezing plate 18 slides reciprocatingly at the bottom of the first squeezing plate 2, intermittently squeezing the absorbent cotton 10, so that the absorbent cotton 10 is in a loose and tight state, thereby improving the absorption effect of the absorbent cotton 10.

[0033] As a further embodiment of the present invention, the guide groove 20 includes a plurality of special-shaped grooves 22 . The special-shaped grooves 22 are V-shaped with the V-shaped opening facing one side of the rubber sleeve 7 . Adjacent special-shaped grooves 22 are connected with vertical grooves 23 .

[0034] Specifically, after the guide pin 21 enters the guide groove 20, it first moves to the side away from the rubber sleeve 7, thereby driving the second squeezing plate 18 away from the absorbent cotton 10. When the guide pin 21 moves to the middle of the special-shaped groove 22 and continues to move downward, under the guidance of the V-shaped structure, the guide pin 21 moves to the side close to the rubber sleeve 7, thereby driving the second squeezing plate 18 to squeeze the absorbent cotton 10. After the guide pin 21 breaks away from the special-shaped groove 22 and enters the vertical groove 23, the second squeezing plate 18 continues to be in an squeezing state. Then, when the guide pin 21 enters the next special-shaped groove 22, the second squeezing plate 18 will move away from the absorbent cotton 10 again. This is repeated, thereby achieving the purpose of intermittent squeezing, which is beneficial to improving the absorption effect of the absorbent cotton 10.

[0035] As a further implementation scheme of the present invention, there are multiple absorbent cottons 10, and an isolation sheet 24 is arranged between each absorbent cotton 10. The isolation sheet 24 is fixed on the inner wall of the rubber sleeve 7. The isolation sheet 24 and the inside of the rubber sleeve 7 are jointly provided with multiple drainage holes 25. The drainage hole 25 is L-shaped, and the top end of the drainage hole 25 is arranged to be connected to the inside of the absorbent cotton 10, and the bottom end of the drainage hole 25 is connected to the outside of the rubber sleeve 7.

[0036] Specifically, in the process of squeezing the absorbent cotton 10, the water flow will be concentrated to flow to the bottom of the absorbent cotton 10 under the pushing action, so that the bottom receives a large amount of water in a short time, thereby accelerating the speed at which the bottom reaches a saturated state, and then affecting the absorption effect of the absorbent cotton 10 below, which is not conducive to the positioning and shaping of the tree by the positioning plate 5. In order to solve the above problems, the present invention arranges the absorbent cotton 10 into multiple pieces, and arranges isolation plates 24 between the multiple absorbent cottons 10. In the process of downward squeezing of the first squeezing plate 2, the isolation plates 24 can isolate the water flows discharged from different absorbent cottons 10, and the isolated water flows can be directly discharged through the drainage holes 25, thereby reducing the adverse effect of the upper squeezing effect on the absorption effect of the lower absorbent cotton 10.

[0037] As a further implementation scheme of the present invention, a baffle 26 is fixed on the top surface of the second extrusion plate 18, a water storage chamber 27 is formed between the baffle 26 and the second extrusion plate 18, a water guide plate 28 is fixed on the bottom surface of the second extrusion plate 18, and a plurality of water permeable holes 29 are opened on the bottom surface of the water storage chamber 27.

[0038] Specifically, after the water is discharged from the drainage hole 25, part of the water adheres to the surface of the rubber sleeve 7. When the second extrusion plate 18 or the first extrusion plate 2 contacts the rubber sleeve 7, the water can reduce the friction between the second extrusion plate 18, the first extrusion plate 2 and the rubber sleeve 7, so that the first extrusion plate 2 or the second extrusion plate 18 can move downward more smoothly, so that the extrusion process of the absorbent cotton 10 can be completed more quickly, and the friction and wear between the absorbent cotton 10 and the rubber sleeve 7 can be reduced at the same time, thereby extending the service life of the rubber sleeve 7. Secondly, during the extrusion process, if the friction is too large, it may cause uneven force on the absorbent cotton 10, resulting in local over-extrusion or under-extrusion. Reducing the friction can make the extrusion process move downward more smoothly, which is good for the absorbent cotton 10. The water sponge 10 applies a more uniform pressure to ensure the squeezing effect, but the water discharged from the drainage hole 25 is difficult to evenly adhere to the surface of the rubber sleeve 7. In order to make the water evenly distributed on the surface of the rubber sleeve 7, the present invention sets a water storage chamber 27 on the top of the second squeezing plate 18, so that the water flow squeezed and discharged by the first squeezing plate 2 can enter from the drainage hole 25 and be stored in the water storage chamber 27, and the water is slowly discharged from the water permeable hole 29 at the bottom of the water storage chamber 27 to the water guide plate 28, and the water flow is guided to the surface of the rubber sleeve 7 below the second squeezing plate 18 through the water guide plate 28. By wetting the surface of the rubber sleeve 7 in advance, the friction between the second squeezing plate 18 and the rubber sleeve 7 is reduced, and the wear on the rubber sleeve 7 is reduced.

[0039] As a further embodiment of the present invention, the bottom surface of the second extrusion plate 18 is inclined, the water guide plate 28 is an elastic plate, the length of the water guide plate 28 is greater than that of the second extrusion plate 18, and the water guide plate 28 has at least a first state and a second state. When the water guide plate 28 is in the first state, the water guide plate 28 is in close contact with the bottom surface of the second extrusion plate 18. When the water guide plate 28 is in the second state, there is a gap 30 between the water guide plate 28 and the bottom surface of the second extrusion plate 18.

[0040] Specifically, since the second squeezing plate 18 will perform pre-squeezing, if there is less rainwater on the surface of the tree, after the pre-squeezing, the first squeezing plate 2 may have less water discharge when squeezing, resulting in less water flow storage in the water storage chamber 27, less water discharged from the water guide plate 28, and thus causing uneven dispersion of water on the surface of the rubber sleeve 7. On the other hand, when the second squeezing plate 18 is away from the rubber sleeve 7, it will also cause water loss. In order to solve the above problem, the present invention improves the water guide plate 28. When the second squeezing plate 18 is away from the rubber sleeve 7, the water guide plate 28 can be in close contact with the bottom surface of the second squeezing plate 18 under the action of its own elastic force, and the water permeable hole 29 is closed, thereby ensuring that the water flow inside the water storage chamber 27 will not be lost during the process of moving away. When the second squeezing plate 18 is close to the rubber sleeve 7, since the length of the water guide plate 28 is greater than the second squeezing plate 18, the water guide plate 28 can be used to close the water permeable hole 29. The extrusion plate 18 is pressed against the rubber sleeve 7, so that the water guide plate 28 contacts the rubber sleeve 7 first. As the water guide plate 28 continues to approach the rubber sleeve 7 and squeezes the rubber sleeve 7, since the water guide plate 28 is in an inclined state, under the action of the squeezing force, the water guide plate 28 gradually deforms and generates a gap 30 with the second squeezing plate 18, thereby opening the water permeable hole 29, so that water flows into the gap 30 between the second squeezing plate 18 and the water guide plate 28, and since the water guide plate 28 is in close contact with the rubber sleeve 7, the bottom of the gap 30 is sealed, so that water can always be stored in the gap 30, the water contacts the surface of the rubber sleeve 7, and the surface of the rubber sleeve 7 is wetted in advance, so that during the squeezing process of the second squeezing plate 18, a large amount of water is not required, and the wetting state of the surface of the rubber sleeve 7 can be continuously and evenly ensured, thereby further reducing the wear on the rubber sleeve 7.

[0041] As a further implementation scheme of the present invention, the through hole 11 is a rectangular hole, and a first fixed block 32 and a second fixed block 33 are arranged inside the through hole 11. The first fixed block 32 is fixed on the inner top surface of the through hole 11, and the second fixed block 33 is fixed on the inner bottom surface of the through hole 11. The docking positions of the first fixed block 32 and the second fixed block 33 are both provided with guide surfaces, and a water-permeable groove 34 is opened on the guide surface of the first fixed block 32.

[0042] Specifically, when the positioning plate 5 is not in contact with the tree, if the through hole 11 is always in an open state, rainwater may enter directly from the through hole 11, causing the absorbent cotton 10 to be saturated with water in advance, affecting the subsequent water absorption effect. In order to solve the above problem, the present invention arranges a first fixing block 32 and a second fixing block 33 in the through hole 11. When not subjected to the squeezing effect, the guiding surfaces of the first fixing block 32 and the second fixing block 33 contact each other, thereby blocking and closing the water-permeable groove 34 on the first fixing block 32. When the positioning plate 5 is in contact with the surface of the tree, under the squeezing effect, the rubber sleeve 7 is deformed, so that the first fixing block 32 and the second fixing block 33 are close to each other. Under the guidance of the guiding surface, the first fixing block 32 and the second fixing block 33 are moved away from each other, thereby exposing the water-permeable groove 34. Rainwater on the surface of the tree can enter the interior of the rubber sleeve 7 from the water-permeable groove 34, and the water-permeable groove 34 can also allow external gas to contact the surface of the tree, which is conducive to preventing the blockage of the pores and obstruction of gas exchange due to squeezing.

[0043] As a further embodiment of the present invention, a filter screen 31 is fixed on the inner wall of the water-permeable groove 34 .

[0044] Specifically, the filter 31 can prevent impurities on the surface of the tree from entering the absorbent cotton 10 and affecting the water absorption effect.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A trunk shaping device for use in sustainable forest management, comprising a plurality of extrusion rings (1), each of the extrusion rings (1) being composed of two half rings fixed to each other, a plurality of pulling ropes (3) being fixed to the outer wall of each of the extrusion rings (1), and a positioning pin (4) being fixed to the tail end of each of the pulling ropes (3); It is characterized in that Two groups of positioning plates (5) are arranged inside each of the extrusion rings (1), each group of the positioning plates (5) has two positioning plates, and the two groups of positioning plates (5) are distributed up and down, a first electric push rod (6) is fixed between the positioning plates (5) and the extrusion ring (1), and a flexible surface is fixed to the end surface of the positioning plates (5); The flexible surface comprises a rubber sleeve (7), the interior of the rubber sleeve (7) comprises a mounting cavity (8), the bottom of the mounting cavity (8) is provided with an opening (9), absorbent cotton (10) is fixed on the inner wall of the mounting cavity (8), and a plurality of through holes (11) are evenly formed on a side of the rubber sleeve (7) away from the positioning plate (5).

2. The device for auxiliary trunk shaping for sustainable forest management according to claim 1, characterized in that: The interior of the positioning plate (5) is hollow, and a slide groove (12) is provided on the surface of the positioning plate (5). A connecting rod (13) is slidably connected inside the slide groove (12). A first extrusion plate (2) is fixed to one end of the connecting rod (13), and the first extrusion plate (2) is located inside the positioning plate (5). A lower pressing plate (14) is provided at the other end of the connecting rod (13). The lower pressing plate (14) is vertically slidably connected to the surface of the positioning plate (5). The connecting rod (13) is slidably arranged on the bottom surface of the lower pressing plate (14). A spring (15) is fixed between the connecting rod (13) and the lower pressing plate (14). A second electric push rod (16) is arranged between the lower pressing plate (14) and the positioning plate (5). An inclined surface (17) is provided on the surface of the positioning plate (5), and the fixed end of the second electric push rod (16) is slidably connected to the inclined surface (17).

3. The device for auxiliary trunk shaping for sustainable forest management according to claim 2, characterized in that: A second extrusion plate (18) is slidably connected below the first extrusion plate (2), the second extrusion plate (18) is L-shaped, one end of the second extrusion plate (18) is in contact with the rubber sleeve (7), and a push rod (19) is fixed to the other end of the second extrusion plate (18), the push rod (19) is inserted into the inside of the slide groove (12), a guide groove (20) is provided on the inner wall of the slide groove (12), a guide pin (21) is fixed on the side wall of the push rod (19), the guide pin (21) is inserted into the inside of the guide groove (20), and the guide groove (20) is used to guide the push rod (19) to perform reciprocating horizontal sliding.

4. The device for auxiliary trunk shaping for sustainable forest management according to claim 3, characterized in that: The guide groove (20) comprises a plurality of special-shaped grooves (22), wherein the special-shaped grooves (22) are in a V-shaped state with the V-shaped opening facing one side of the rubber sleeve (7), and adjacent special-shaped grooves (22) are connected to each other and are provided with vertical grooves (23).

5. The device for auxiliary trunk shaping for sustainable forest management according to claim 4, characterized in that: There are a plurality of absorbent cottons (10), and an isolation sheet (24) is arranged between each of the absorbent cottons (10). The isolation sheet (24) is fixed on the inner wall of the rubber sleeve (7). The isolation sheet (24) and the rubber sleeve (7) are provided with a plurality of drainage holes (25) inside. The drainage holes (25) are L-shaped, and the top ends of the drainage holes (25) are arranged to communicate with the inside of the absorbent cotton (10), and the bottom ends of the drainage holes (25) are communicated with the outside of the rubber sleeve (7).

6. The device for auxiliary trunk shaping for sustainable forest management according to claim 5, characterized in that: A baffle plate (26) is fixed on the top surface of the second extrusion plate (18), a water storage cavity (27) is formed between the baffle plate (26) and the second extrusion plate (18), a water guide plate (28) is fixed on the bottom surface of the second extrusion plate (18), and a plurality of water permeable holes (29) are provided on the bottom surface of the water storage cavity (27).

7. The device for auxiliary trunk shaping for sustainable forest management according to claim 6, characterized in that: The bottom surface of the second extrusion plate (18) is in an inclined state. The water guide plate (28) is an elastic plate. The length of the water guide plate (28) is greater than that of the second extrusion plate (18). The water guide plate (28) has at least a first state and a second state. When the water guide plate (28) is in the first state, the water guide plate (28) is in close contact with the bottom surface of the second extrusion plate (18). When the water guide plate (28) is in the second state, a gap (30) is provided between the water guide plate (28) and the bottom surface of the second extrusion plate (18).

8. The device for auxiliary trunk shaping for sustainable forest management according to claim 1, characterized in that: The through hole (11) is a rectangular hole. A first fixing block (32) and a second fixing block (33) are arranged inside the through hole (11). The first fixing block (32) is fixed on the inner top surface of the through hole (11), and the second fixing block (33) is fixed on the inner bottom surface of the through hole (11). The first fixing block (32) and the second fixing block (33) are both provided with guide surfaces at the docking positions, and a water-permeable through groove (34) is provided on the guide surface of the first fixing block (32).

9. The device for auxiliary trunk shaping for sustainable forest management according to claim 8, characterized in that: A filter screen (31) is fixed on the inner wall of the water-permeable groove (34).

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