Branch salvage equipment for hydraulic engineering

Abstract

This invention discloses a tree branch retrieval device for water conservancy projects, belonging to the field of water conservancy engineering technology. The device includes a feeding assembly and a crushing device. The crushing device is installed on the riverbank, with an mounting plate on one side near the riverbank and the other side of the mounting plate connected to the riverbank. A collection bin is located at the bottom of the crushing device. The feeding assembly is installed at the upstream end of the crushing device and includes a waterproof plate. The waterproof plate is installed on top of the upstream end of the crushing device, with a rotatable fixed feeding wheel and a movable feeding wheel mounted on the top of the waterproof plate. A water wheel is located at the bottom of the movable feeding wheel. This invention allows the device to be placed in various sections of a river, replacing manual collection of tree branches, effectively saving manpower and significantly preventing blockages.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, and more specifically, to a tree branch retrieval device for water conservancy projects. Background Technology

[0002] China is a vast country with numerous rivers. Many trees are planted along the riverbanks. During their growth, some branches of these trees fall into the water and drift downstream with the river's flow. This can cause the river to become blocked by branches, leading to dam failure.

[0003] The current solution is to manually salvage the branches. However, searching and salvaging the entire river would require a significant amount of time and manpower. Furthermore, salvaging only downstream would not guarantee the flow of the entire river, as the branches might accumulate in a narrow spot in the middle reaches. Summary of the Invention

[0004] As river water flows, wind forces on the river surface generate waves, which push objects on the river surface towards the riverbank. Therefore, tree branches often drift along the riverbank during river flow. This application designs a tree branch retrieval device for hydraulic engineering. This device can be placed on the bank of various sections of the river to retrieve tree branches, thus solving the aforementioned problem.

[0005] The current solution is to manually retrieve tree branches from the river periodically. However, searching and retrieving branches from the entire river would require a significant amount of time and manpower. Furthermore, retrieving branches only from the downstream section cannot guarantee the smooth flow of the entire river, as the branches may accumulate in a narrow spot in the middle of the river.

[0006] A tree branch harvesting device for water conservancy projects includes a feeding assembly and a crushing device. The crushing device is installed on a riverbank, with an installation plate mounted on the side of the crushing device closest to the riverbank. The other side of the installation plate is connected to the riverbank. A collection bin is provided at the bottom of the crushing device. The feeding assembly is installed at the upstream end of the crushing device and includes a waterproof plate. The waterproof plate is installed on the top of the crushing device at the upstream end of the water flow. A rotatable fixed feeding wheel and a movable feeding wheel are installed on the top of the waterproof plate. A water wheel is provided at the bottom of the movable feeding wheel. Baffles are provided at the bottom of the fixed feeding wheel and the movable feeding wheel. The water wheel is located below the baffles. The bottom of the fixed feeding wheel is fixedly connected to the top output end of a motor. The motor is threadedly installed on the side of the installation plate away from the riverbank.

[0007] Furthermore, it also includes a movable component, which includes a fixed plate installed below the waterproof membrane. A driving wheel is mounted on the top of one end of the fixed plate near the riverbank, and a driven wheel is mounted on the top of the other end. A slot is formed in the center of the top of the fixed plate, and a movable plate is movably fitted inside the slot. A sliding rod is threaded through the interior of the movable plate, and both ends of the sliding rod are rotatably mounted on the inner wall of the slot. A spring is sleeved on the outer side of the sliding rod near the driven wheel, with one end of the spring fixedly connected to the movable plate and the other end fixedly connected to the slot. A movable wheel and two guide wheels are connected to the top of the movable plate, with the two guide wheels located on opposite sides of the movable wheel. The axes of rotation of the driving wheel, driven wheel, and movable wheel are on the same straight line. The driving wheel, driven wheel, movable wheel, and guide wheels are driven by a belt. The driving wheel, driven wheel, and guide wheels are in frictional contact with the inner side of the belt, and the movable wheel is in frictional contact with the outer side of the belt.

[0008] Furthermore, the active rotating wheel is coaxially connected to the fixed feeding wheel, the active rotating wheel is fixedly installed at the output end of the motor, the movable rotating wheel is coaxially connected to the movable feeding wheel, the waterproof plate is provided with a waterproof groove below the movable feeding wheel, and a water baffle is movably fitted inside the waterproof groove, the water baffle moves synchronously with the movable feeding wheel.

[0009] Furthermore, it also includes a third control component, which includes a driven gear, a transmission gear, and a driving gear. The driving gear is fixedly installed at the output end of the motor. The transmission gear meshes with the driving gear, and the driven gear meshes with the transmission gear. A first bevel gear is coaxially connected to the bottom of the driven gear.

[0010] Furthermore, the crushing device is equipped with two crushing rollers. Each crushing roller is connected to a connecting gear at the end near the feeding assembly. The two connecting gears mesh with each other, and one of the connecting gears is coaxially connected to a second bevel gear. The second bevel gear meshes with the first bevel gear for transmission.

[0011] Furthermore, it also includes a first control component, which includes a control disk mounted on the bottom of a fixed feed wheel. An inflatable wheel is fitted around the outside of the fixed feed wheel. A cylindrical groove is formed on the top of the control disk, and a stop block is provided inside the groove. The stop block fits tightly with the cylindrical groove. The top of the cylindrical groove communicates with the inside of the inflatable wheel. A disc groove is also formed at the bottom of the cylindrical groove on the control disk. Several inlets and outlets are formed on the edge of the control disk. Movable teeth are provided inside the inlets and outlets, with the tips of the movable teeth facing outwards from the inlets and outlets. An inclined block corresponding to the number of movable teeth is provided in the middle of the disc groove. The closest inclined block and movable tooth are grouped together. A connecting rod connects each group of inclined blocks and movable teeth. A spring is fitted around the outside of the connecting rod, and the two ends of the spring are respectively connected to the movable tooth and the inner wall of the inlet and outlet.

[0012] Furthermore, it also includes a second control component, which includes a control gear located on one side of the control panel. A lifting cylinder is connected to the bottom of the fixed plate, and a threaded rod is connected to the bottom of the control gear. The threaded rod is located at the inner central axis of the lifting cylinder, and a lifting block is threadedly sleeved on the outer side of the threaded rod. A slot corresponding to the lifting block is provided inside the lifting cylinder, and a spring is provided at the bottom of the lifting cylinder. The inside of the spring is fixedly connected to the bottom of the threaded rod, and the outside of the spring is fixedly connected to the inner wall of the lifting cylinder.

[0013] Furthermore, a control groove is provided on the side of the lifting cylinder near the crushing device, and a lever is fixedly connected to the side of the lifting block near the crushing device;

[0014] Furthermore, the third control component also includes an inner rod, which is connected to the outer side of the lifting cylinder via fixed bearings at both ends. A sleeve is fitted onto the outer side of the inner rod, and a lifting groove is provided on the outer side of the inner rod. The sleeve has a corresponding locking slot inside, allowing the sleeve to move up and down at the lifting groove. The sleeve and the inner rod have high friction and are fixedly fitted onto the outer side of the sleeve along with the first bevel gear. A movable locking member is movably connected to the outer side of the bottom end of the sleeve. A movable plate is fixedly provided on the side of the movable locking member near the control groove. A fixed rod is fixedly provided inside the control groove. A long groove is provided inside the movable plate, and the fixed rod passes through the long groove.

[0015] Furthermore, the control slot is located near the lower part of the normal position of the lifting block, and the control slot is a certain distance from the bottom of the lifting cylinder. The bottom end of the threaded rod is located above the spring and a spring plate is provided. The outer surface of the threaded rod above the spring plate is smooth and without threads, and the height of the threadless part is the same as the height of the lower lifting block.

[0016] Furthermore, the lifting cylinder is located below the control slot with a groove and a friction plate is provided in the groove. The side of the friction plate near the outer edge of the lifting cylinder is in frictional contact with a lifting plate, and the top of the lifting plate is connected to the long groove by a straight rod.

[0017] Beneficial effects

[0018] Compared with the prior art, the advantages of this invention are:

[0019] 1. The invention has a clever structure that can be set up in various river basins and automatically collect tree branches over a long period of time, providing comprehensive protection for the river, reducing the probability of river blockage, and saving manpower.

[0020] 2. The movable component of the present invention can drive the movable feed wheel to move, thereby changing the distance between the fixed feed wheel and the movable feed wheel. In this way, the distance between the fixed feed wheel and the movable feed wheel can be adjusted according to the size of the surrounding trees in different river areas, improving the collection efficiency and expanding the application range of the product.

[0021] 3. This invention achieves the opening and closing of the crushing device as branches enter and exit through the combined action of multiple control components. In this way, the crushing device stops working when no branches enter, and only the feeding component works normally, which can greatly save resources.

[0022] 4. During the operation of the crushing device, there may be a situation where the two crushing rollers clamp and lift the branches. At this time, the crushing device still needs to continue to work, but the branches have already detached from the inside of the feeding component. This problem can be solved by designing the control groove far away from the bottom of the lifting cylinder. The bottom space of the lifting cylinder is sufficient, which means that the lifting block can descend a large amount of space. At this time, even if the branches detach from the feeding component, it will still take a certain amount of time for the lifting block to return to its position. This time is enough for the crushing device to crush the branches. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the feeding assembly of the present invention;

[0025] Figure 3 This is a schematic diagram of the active components of the present invention;

[0026] Figure 4 This is a schematic diagram of the waterproof membrane structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the overall control component of the present invention;

[0028] Figure 6 This is a schematic diagram of the third control component of the present invention;

[0029] Figure 7 This is a top view of the interior of the first control component of the present invention;

[0030] Figure 8 This is a schematic diagram showing the connection position between the third control component and the crushing device in this invention.

[0031] Figure 9 This is a cross-sectional view of the inside of the lifting cylinder of the present invention;

[0032] Figure 10 This is an enlarged view of point A in the present invention;

[0033] Figure 11 This is a schematic diagram of the connection between the third control component and the crushing device of the present invention;

[0034] Figure 12 This is a cross-sectional view of the lifting cylinder of the present invention;

[0035] Figure 13 This is a schematic diagram of the water flow direction according to the present invention.

[0036] Explanation of the numbers in the diagram: 1. Feeding assembly; 101. Waterproof plate; 102. Fixed feed wheel; 103. Movable feed wheel; 104. Water wheel; 105. Waterproof groove; 106. Water baffle; 107. Air-filled wheel; 2. Movable assembly; 201. Fixed plate; 202. Driving wheel; 203. Driven wheel; 204. Moving plate; 205. Slide rod; 206. Spring A; 207. Moving wheel; 208. Guide wheel; 209. Belt; 3. First control assembly; 301. Control panel; 302. Stop block; 303. Inlet / outlet; 304. Movable gear; 305. Inclined block; 306. Connecting rod; 307. Spring B; 4. Second control assembly; 401. Control gear 402. Lifting cylinder; 403. Threaded rod; 404. Lifting block; 405. Slot; 406. Spring; 407. Control slot; 408. Lever; 409. Fixed rod; 410. Spring plate; 411. Lifting plate; 412. Friction plate; 5. Third control component; 501. Inner rod; 502. Sleeve; 503. Movable clamp; 504. Movable plate; 505. Long slot; 506. First bevel gear; 507. Fixed bearing; 508. Driven gear; 509. Transmission gear; 510. Driven gear; 6. Crushing device; 601. Crushing roller; 602. Connecting gear; 603. Second bevel gear; 7. Electric motor; 8. Mounting plate; 9. Collection bin. Detailed Implementation

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] Please refer to Figures 1-11. A tree branch retrieval device for water conservancy projects includes a feeding assembly 1 and a crushing device 6. The crushing device 6 is installed on the riverbank, with an mounting plate 8 installed on the side of the crushing device 6 near the riverbank. The other side of the mounting plate 8 is connected to the riverbank (the crushing device 6 is connected to the riverbank via the mounting plate 8). A collection bin 9 is provided at the bottom of the crushing device 6. The feeding assembly 1 is installed at the upstream end of the crushing device 6 and includes a waterproof plate 101. The waterproof plate 101 is installed on top of the crushing device 6 near the upstream end of the water flow, and a rotatable... The fixed feed wheel 102 and the movable feed wheel 103 are provided. The bottom of the movable feed wheel 103 is provided with a water wheel 104. The bottom of the fixed feed wheel 102 and the movable feed wheel 103 is provided with a baffle. The water wheel 104 is located below the baffle. This maintains the function of the water wheel 104 in moving the water flow and prevents the branches from getting stuck with the water wheel 104. The bottom of the fixed feed wheel 102 is fixedly connected to the top output end of the motor 7. The motor 7 is threadedly installed on the side of the mounting plate 8 away from the riverbank. The crushing device 6 is set slightly at an angle to facilitate the branches to enter the crushing device 6 from the feeding assembly 1.

[0041] Please see Figure 11The entire device is positioned below the water surface, with the fixed feed wheel 102 and the movable feed wheel 103 located on the surface. The continuous rotation of these two wheels influences the water flow, causing some surface water to flow towards the center of the two wheels. Since the branches are generally long and narrow, they tend to move with the current, further driving them towards the center of the two wheels. Installing a waterwheel 104 at the bottom of the movable feed wheel 103, away from the riverbank, further expands the device's coverage area and improves branch collection. The branches are collected by the fixed and movable feed wheels 102 and are then crushed and stored in the collection chamber, awaiting removal by staff.

[0042] Please see Figure 1-4As one embodiment of this invention, it also includes a movable component 2, which includes a fixed plate 201 installed below the waterproof membrane 101. A driving wheel 202 is installed at the top of one end of the fixed plate 201 near the riverbank, and a driven wheel 203 is installed at the top of the other end. A slot is formed in the center of the top of the fixed plate 201, and a movable plate 204 is movably fitted inside the slot. A sliding rod 205 is threaded through the interior of the movable plate 204. Both ends of the sliding rod 205 are rotatably mounted on the inner wall of the slot, with the end of the sliding rod 205 near the driven wheel 203. A spring 206 is fitted on the outer side. One end of the spring 206 is fixedly connected to the movable plate 204, and the other end is fixedly connected to the slot. The spring has a large elastic coefficient. When there are no branches to feed, the spring 206 is in a relaxed state. At this time, the distance between the fixed feed wheel 102 and the movable feed wheel 103 is small, allowing small branches to enter. When the diameters of the two ends of the branch are different or the branch is large, the thrust of the branch on the fixed feed wheel 102 and the movable feed wheel 103 increases. The spring 206 contracts, driving the movable plate 204 to move, which in turn drives the movable feed wheel 103 to move, automatically changing the position of the fixed plate 204. The distance between the fixed feed roller 102 and the movable feed roller 103; a movable roller 207 and two guide rollers 208 are connected to the top of the movable plate 204. The two guide rollers 208 are located on both sides of the movable roller 207. The shafts of the driving roller 202, the driven roller 203, and the movable roller 207 are on the same straight line. The driving roller 202, the driven roller 203, the movable roller 207, and the guide rollers 208 are driven by a belt 209. The driving roller 202, the driven roller 203, and the guide rollers 208 are in frictional contact with the inner side of the belt 209, and the movable roller 207 is in frictional contact with the outer side of the belt 209. When the driving wheel 202 rotates, the driven wheel 203, the movable wheel 207, and the guide wheel 208 all rotate under the drive of the belt 209. Moreover, no matter how the position of the movable plate 204 changes, the rotation of the driving wheel 202, the driven wheel 203, the movable wheel 207, and the guide wheel 208 is not affected. Since the driving wheel 202 is located inside the belt 209 and the movable wheel 207 is located outside the belt, their rotation directions are opposite, which can drive the fixed feed wheel 102 and the movable feed wheel 103 to rotate in opposite directions, thereby achieving the purpose of holding the branches inside and moving them in the same direction.

[0043] In a preferred embodiment of this invention, the active rotating wheel 202 is coaxially connected to the fixed feeding wheel 102. The active rotating wheel 202 is fixedly installed at the output end of the motor 7. The movable rotating wheel 207 is coaxially connected to the movable feeding wheel 103. Since the active rotating wheel 202 and the movable rotating wheel 207 rotate in opposite directions, the fixed feeding wheel 102 and the movable feeding wheel 103 rotate in opposite directions. The two drive the water flow towards the center. A waterproof groove 105 is provided on the waterproof plate 101 below the movable feeding wheel 103. A baffle plate 106 is movably fitted inside the waterproof groove 105. The baffle plate 106 moves synchronously with the movable feeding wheel 103. The surface area of ​​the baffle plate 106 is much larger than the surface area of ​​the groove on the surface of 101 that facilitates the movement of the bottom shaft of the movable feeding wheel 103. Therefore, no matter how the movable feeding wheel 103 moves, the baffle plate 106 always completely covers the groove. This design can prevent river water from flowing into the device and improve the life of the device.

[0044] The movable component 2 of the present invention can drive the movable feed wheel 103 to move. When the diameters at both ends of the branch are different or the branch is large, the thrust of the branch on the fixed feed wheel 102 and the movable feed wheel 103 increases. The spring 206 contracts and drives the moving plate 204 to move, which in turn drives the movable feed wheel 103 to move. This automatically changes the distance between the fixed feed wheel 102 and the movable feed wheel 103, which can cope with the situation where the size of the branches on the river surface varies.

[0045] As one embodiment of this invention, a control component 5 is also included. The control component 5 includes a driven gear 508, a transmission gear 509, and a driving gear 510. The driving gear 510 is fixedly installed at the output end of the motor 7. The transmission gear 509 meshes with the driving gear 510, and the driven gear 508 meshes with the transmission gear 509. The driving gear 510, the transmission gear 509, the driven gear 508, and the lifting cylinder 402 are arranged at the four corners of the quadrilateral. The transmission gear 509 and the lifting cylinder 402 are distributed at an oblique angle to prevent the lifting cylinder 402 from obstructing the transmission between the driving gear 510 and the driven gear 508. The bottom of the driven gear 508 is coaxially connected to a first bevel gear 506.

[0046] As a preferred embodiment of this invention, the crushing device 6 has two crushing rollers 601 installed inside. Each crushing roller 601 is connected to a connecting gear 602 at one end near the feeding component 1. The two connecting gears 602 mesh with each other. One of the connecting gears 602 is coaxially connected to a second bevel gear 603. The second bevel gear 603 meshes with the bevel gear 506 for transmission.

[0047] In a preferred embodiment of this invention, a control component 3 is also included. The control component 3 includes a control disk 301, which is mounted on the bottom of the fixed feed wheel 102. An inflatable wheel 107 is sleeved on the outer side of the fixed feed wheel 102. A cylindrical groove is formed on the top of the control disk 301, and a stop block 302 is provided inside the groove. The stop block 302 fits tightly with the cylindrical groove, preventing gas from escaping from the edge of the stop block 302. The top of the cylindrical groove communicates with the interior of the inflatable wheel 107. A disc groove is also formed at the bottom of the cylindrical groove of the control disk 301. The control panel 301 has several inlets and outlets 303 on its edge. Movable teeth 304 are provided inside the inlets and outlets 303, with the tips of the movable teeth 304 facing outward from the inlets and outlets 303. The center of the disc groove is provided with inclined blocks 305 corresponding to the number of movable teeth 304. The closest inclined blocks 305 and movable teeth 304 are grouped together. A connecting rod 306 is connected between each group of inclined blocks 305 and movable teeth 304. A spring 307 is sleeved on the outside of the connecting rod 306. The two ends of the spring 307 are connected to the movable teeth 304 and the inner wall of the inlets and outlets 303, respectively. When the feeding assembly 1 starts working, the branch passes between the fixed feeding wheel 102 and the movable feeding wheel 103 and squeezes the air-filled wheel 107. At this time, part of the gas inside the air-filled wheel 107 flows into the cylindrical groove and squeezes the abutment block 302 downward. The abutment block 302 squeezes the inclined block 305, causing the inclined block 305 to move outward and push the movable tooth 304 out of the inlet and outlet 303. When the branch is removed from the feeding assembly 1, the air-filled wheel 107 returns to its original state and the movable tooth 304 retracts into the control panel 301.

[0048] As a preferred embodiment of this example, a second control component 4 is also included. The second control component 4 includes a control gear 401, which is located on one side of the control disk 301. When the movable tooth 304 is inside the control disk 301, the control disk 301 and the control gear 401 do not contact each other. When the movable tooth 304 extends out of the control disk 301, the control disk 301 and the control gear 401 mesh and drive each other. A lifting cylinder 402 is connected to the bottom of the fixed plate 201. A threaded rod 403 is connected to the bottom of the control gear 401, and the threaded rod 403 is located at the central axis position inside the lifting cylinder 402. A lifting block 404 is threaded on the outer side of the threaded rod 403. A slot 405 corresponding to the lifting block 404 is provided inside the lifting cylinder 402. A spring 406 is provided at the bottom of the lifting cylinder 402. The inside of the spring 406 is fixedly connected to the bottom of the threaded rod 403, and the outside of the spring 406 is fixedly connected to the inner wall of the lifting cylinder 402.

[0049] Normally, the control gear 401 is stationary, and the lifting block 404 is at its highest position. When the movable gear 304 is pushed out from inside the control disk 301, the two mesh and drive each other, causing the control gear 401 to rotate. The threaded rod 403 rotates accordingly, driving the lifting block 404 to descend. When the movable gear 304 retracts into the control disk 301, the control disk 301 disengages from the control gear 401, and the threaded rod 403 springs back under the action of the spring 406, returning the lifting block 404 to its original position.

[0050] In a preferred embodiment of this invention, a control groove 407 is provided on the side of the lifting cylinder 402 near the crushing device 6, and a lever 408 is fixedly connected to the side of the lifting block 404 near the crushing device 6.

[0051] In a preferred embodiment of this invention, the third control component 5 further includes an inner rod 501. The inner rod 501 is connected to the outer side of the lifting cylinder 402 via fixed bearings 507 at both ends. A sleeve 502 is fitted on the outer side of the inner rod 501. A lifting groove is provided on the outer side of the inner rod 501. A locking slot corresponding to the lifting groove is provided inside the sleeve 502. The sleeve 502 can rise and fall at the lifting groove. The friction between the inner rod 501 and the sleeve 502 is large, so the sleeve 502 will not slip naturally under the action of gravity. The first bevel gear 506 is fixedly fitted on the outer side of the sleeve 502. A movable locking piece 503 is movably connected to the outer side of the bottom end of the sleeve 502. A movable plate 504 is fixedly provided on the side of the movable locking piece 503 near the control groove 407. A fixed rod 409 is fixedly provided inside the control groove 407. A long groove 505 is provided inside the movable plate 504. The fixed rod 409 passes through the long groove 505.

[0052] Please see Figure 6 , 8 The crushing device 6 of the present invention operates synchronously with the feeding assembly 1. When the motor 7 starts, the fixed feeding wheel 102 and the movable feeding wheel 103 start to rotate and feed. At this time, the driving gear 510, the transmission gear 509 and the driven gear 508 mesh and drive the bevel gear 506 to rotate, which in turn drives the second bevel gear 603 to rotate. At this time, the crushing roller 601 rotates synchronously. When the river flow is slow or when the trees are growing vigorously in spring and summer and fewer branches fall, this device can operate intermittently to save resources.

[0053] Please see Figure 7-10When a branch passes between the feed wheels, the lifting block 404 descends under the action of the control gear 401, the lever 408 moves the movable plate 504 downward, and the sleeve 502 is lifted under the action of the fixed rod 409. The first bevel gear 506 meshes with the second bevel gear 603, and the included angle between the first bevel gear 506 and the second bevel gear 603 is 70°-80°. The crushing device 6 starts to work. When the branch is removed from between the feed wheels, the lifting block 404 returns to its original position. At the same time, the lever 408 moves the movable plate 504 upward, the sleeve 502 descends under the action of the fixed rod 409, the first bevel gear 506 disengages from the second bevel gear 603, and the crushing device 6 stops working.

[0054] This invention achieves the opening and closing of the crushing device 6 as branches enter and exit through the combined action of multiple control components. In this way, the crushing device stops working when no branches enter, and only the feeding component 1 works normally, which can greatly save resources.

[0055] The control slot 407 is located below the normal position of the lifting block 404. A spring plate 410 is positioned at the bottom of the threaded rod 403, above the spring 406, at a certain distance from the bottom of the lifting cylinder 402. The outer surface of the threaded rod 403 above the spring plate 410 is smooth and unthreaded, and the unthreaded height is equal to the height of the lower lifting block 404. During the operation of the crushing device 6, it is possible that the two crushing rollers 601 may clamp and lift the branches. In this case, the crushing device 6 still needs to continue operating, but the branches have already detached from the feeding assembly 1. Designing the control slot 407 away from the bottom of the lifting cylinder 402 can solve this problem. The bottom space of the lifting cylinder 402 is sufficient, which means that the lifting block 404 can descend a large portion of the space. At this time, even if the branch is detached from the feeding assembly 1, it will still take a certain amount of time for the lifting block 404 to return to its original position. This time is sufficient for the crushing device 6 to crush the branch. When the branch is very long or the branch is fed for a long time and the lifting block 404 does not have time to return to its original position, the lifting block 404 will contact the spring plate 410 on the bottom surface. The lifting block 404 will press against the spring plate 410 and be in the unthreaded area. At this time, the lifting block 404 will not continue to descend. When there is no branch feeding, the lifting block 404 will re-engage with the threaded rod 403 under the action of the spring plate 410 to achieve reset.

[0056] The lifting cylinder 402 is located below the control slot 407 and has a groove with a friction plate 412 inside. The side of the friction plate 412 near the outer edge of the lifting cylinder 402 is in frictional contact with the lifting plate 411. The top of the lifting plate 411 is connected to the long slot 505 by a straight rod. When the lifting block 404 moves to the bottom of the control slot 407, the lever 408 will abut against the friction plate 412, and the friction plate 412 will abut against the lifting plate 411, preventing the lifting plate from moving freely. This fixes the movable plate 504 and prevents it from moving under gravity, which could cause the first bevel gear 506 and the second bevel gear 603 to disengage.

[0057] The foregoing has shown and described 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. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tree branch harvesting device for water conservancy projects, comprising a feeding assembly (1) and a crushing device (6), wherein the crushing device (6) is installed on a riverbank, an mounting plate (8) is installed on the side of the crushing device (6) near the riverbank, the other side of the mounting plate (8) is connected to the riverbank, a collection bin (9) is provided at the bottom of the crushing device (6), and the feeding assembly (1) is installed at the upstream end of the crushing device (6), characterized in that: The feeding assembly (1) includes a waterproof plate (101), which is installed on the top of the crushing device (6) near the upstream end of the water flow. The top of the waterproof plate (101) is equipped with a rotatable fixed feeding wheel (102) and a movable feeding wheel (103). The bottom of the movable feeding wheel (103) is provided with a water wheel (104). The bottom of the fixed feeding wheel (102) and the movable feeding wheel (103) is provided with a baffle. The water wheel (104) is located below the baffle. The bottom of the fixed feeding wheel (102) is fixedly connected to the top output end of the motor (7). The motor (7) is threadedly installed on the side of the mounting plate (8) away from the riverbank. It also includes a movable component (2), which includes a fixed plate (201) installed below the waterproof plate (101). A driving wheel (202) is installed at the top of one end of the fixed plate (201) near the riverbank, and a driven wheel (203) is installed at the top of the other end of the fixed plate (201). A slot is provided at the center of the top of the fixed plate (201), and a movable plate (204) is movably fitted inside the slot. A sliding rod (205) is threaded through the interior of the movable plate (204). Both ends of the sliding rod (205) are rotatably mounted on the inner wall of the slot. A spring (206) is sleeved on the outer side of the end of the sliding rod (205) near the driven wheel (203). One end of the spring (206) is connected to the movable wheel. The plate (204) is fixedly connected, and the other end of the spring (206) is fixedly connected to the slot. The top of the movable plate (204) is connected to a movable wheel (207) and two guide wheels (208). The two guide wheels (208) are located on both sides of the movable wheel (207). The rotating shafts of the active wheel (202), the driven wheel (203) and the movable wheel (207) are on the same straight line. The active wheel (202), the driven wheel (203), the movable wheel (207) and the guide wheels (208) are driven by a belt (209). The active wheel (202), the driven wheel (203) and the guide wheels (208) are in frictional contact with the inner side of the belt (209), and the movable wheel (207) is in frictional contact with the outer side of the belt (209).

2. The tree branch retrieval device for water conservancy projects according to claim 1, characterized in that: The active rotating wheel (202) is coaxially connected to the fixed feeding wheel (102). The active rotating wheel (202) is fixedly installed at the output end of the motor (7). The movable rotating wheel (207) is coaxially connected to the movable feeding wheel (103). The waterproof plate (101) is located below the movable feeding wheel (103) and has a waterproof groove (105). A water baffle (106) is movably fitted inside the waterproof groove (105). The water baffle (106) moves synchronously with the movable feeding wheel (103).

3. The tree branch retrieval device for water conservancy projects according to claim 1, characterized in that: It also includes a third control component (5), which includes a driven gear (508), a transmission gear (509) and a driving gear (510). The driving gear (510) is fixedly installed at the output end of the motor (7). The transmission gear (509) meshes with the driving gear (510). The driven gear (508) meshes with the transmission gear (509). The bottom of the driven gear (508) is coaxially connected to a first bevel gear (506).

4. The tree branch retrieval device for water conservancy projects according to claim 3, characterized in that: The crushing device (6) has two crushing rollers (601) installed inside. Each crushing roller (601) is connected to a connecting gear (602) at one end near the feeding assembly (1). The two connecting gears (602) mesh with each other. One of the connecting gears (602) is coaxially connected to a second bevel gear (603). The second bevel gear (603) meshes with the first bevel gear (506) for transmission.

5. A tree branch retrieval device for water conservancy projects according to claim 4, characterized in that: It also includes a first control component (3), which includes a control disk (301). The control disk (301) is installed at the bottom of a fixed feed wheel (102). An inflatable wheel (107) is sleeved on the outside of the fixed feed wheel (102). A cylindrical groove is opened at the top of the control disk (301), and a stop block (302) is provided in the groove. The stop block (302) fits tightly with the cylindrical groove. The top of the cylindrical groove communicates with the inside of the inflatable wheel (107). A disc groove is also opened at the bottom of the cylindrical groove of the control disk (301). Several inlets and outlets are opened on the edge of the control disk (301). The inlet (303) is provided with movable teeth (304) inside. The tips of the movable teeth (304) face the outside of the inlet (303). The middle of the disc groove is provided with inclined blocks (305) corresponding to the number of movable teeth (304). The closest inclined blocks (305) and movable teeth (304) are grouped together. A connecting rod (306) is connected between each group of inclined blocks (305) and movable teeth (304). A spring (307) is sleeved on the outside of the connecting rod (306). The two ends of the spring (307) are respectively connected to the movable teeth (304) and the inner wall of the inlet (303).

6. The tree branch retrieval device for water conservancy projects according to claim 5, characterized in that: It also includes a second control component (4), which includes a control gear (401) located on one side of the control disk (301). The bottom of the fixed plate (201) is connected to a lifting cylinder (402). The bottom of the control gear (401) is connected to a threaded rod (403), and the threaded rod (403) is located at the central axis of the lifting cylinder (402). The outer side of the threaded rod (403) is threaded with a lifting block (404). The inside of the lifting cylinder (402) is provided with a slot (405) corresponding to the lifting block (404). The bottom of the lifting cylinder (402) is provided with a spring (406). The inside of the spring (406) is fixedly connected to the bottom of the threaded rod (403), and the outside of the spring (406) is fixedly connected to the inner wall of the lifting cylinder (402).

7. A tree branch retrieval device for water conservancy projects according to claim 6, characterized in that: The lifting cylinder (402) has a control groove (407) on the side near the crushing device (6), and the lifting block (404) has a lever (408) fixedly connected on the side near the crushing device (6). The third control component (5) further includes an inner rod (501), which is connected to the outer side of the lifting cylinder (402) via fixed bearings (507) at both ends. A sleeve (502) is fitted on the outer side of the inner rod (501), and a lifting groove is provided on the outer side of the inner rod (501). A slot corresponding to the lifting groove is provided inside the sleeve (502). The sleeve (502) can move up and down at the lifting groove. The friction between the sleeve (502) and the inner rod (501) is... The first bevel gear (506) is fixedly sleeved on the outside of the sleeve (502). The bottom outer side of the sleeve (502) is movably connected to a movable clip (503). A movable plate (504) is fixedly provided on the side of the movable clip (503) near the control groove (407). A fixed rod (409) is fixedly provided inside the control groove (407). A long groove (505) is provided inside the movable plate (504). The fixed rod (409) passes through the long groove (505).

8. A tree branch retrieval device for water conservancy projects according to claim 7, characterized in that: The control slot (407) is located below the normal position of the lifting block (404). The control slot (407) is a certain distance away from the bottom of the lifting cylinder (402). The bottom end of the threaded rod (403) is provided with a spring plate (410) above the spring (406). The outer surface of the threaded rod (403) above the spring plate (410) is smooth and without threads, and the height of the threadless part is the same as the height of the lower lifting block (404). The lifting cylinder (402) is located below the control groove (407) with a groove and a friction plate (412) is provided in the groove. The friction plate (412) is in friction contact with the lifting plate (411) on the side near the outer edge of the lifting cylinder (402). The top of the lifting plate (411) is connected to the long groove (505) by a straight rod.

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