A manual clamping device for forestry waste

Abstract

The present invention discloses a manual clamping device for forestry waste, comprising an extension shaft, a gripping frame, an elastic member and a clamping unit; the gripping frame is threadedly sleeved on the extension shaft; the elastic member is slidably sleeved on the extension shaft; the end of the elastic member is fixedly connected to a pull plate; the pull plate is slidably sleeved on the extension shaft; a thin tube is threadedly fixedly connected to the gripping frame; the gripping frame is gripped by the palm of the hand, and the fingers hook the pull plate to pull, thereby driving the clamping unit to clamp the waste, and at the same time the extension shaft is placed under the forearm, so that when the device is used to clamp the waste and move upward, the arm can be used to exert force, so that a heavier waste can be lifted, and the wrist force requirement is small, so that when clamping forestry waste for a long time and over a large area, the labor intensity on the wrist is reduced, and the efficiency of clamping and transferring the waste is higher, which solves the problem that the existing clamping device is not suitable for clamping and collecting waste over a large area.

Description

Technical Field

[0001] The invention relates to the field of picking up three kinds of forestry waste, and in particular to a manual clamping device for picking up three kinds of forestry waste. Background Art

[0002] The three forestry residues are a general term for logging residues, timber residues and processing residues. The three forestry residues are a general term for logging residues, timber residues and processing residues. The three forestry residues have certain utilization value, so the residues generated in the processing process can be collected and utilized.

[0003] The Chinese invention patent with publication number CN108625325B disclosed a forestry residue collection device on July 31, 2020, which includes a frame, a collecting cabin provided on the frame, a fallen leaf picking device provided under the frame, and a fallen leaf suction device provided on the frame; the fallen leaf picking device includes a rotatable central axis, an eccentric shaft fixed to the frame and sleeved outside the central axis, a bearing sleeved outside the eccentric shaft, and a roller coaxial with and fixedly connected to the central axis, the side of the roller is evenly provided with a hollow picking rod, the outside of the bearing is evenly provided with a plurality of cross rods whose axes are parallel to the bearing axis, and the cross rod is hinged with a plurality of telescopic rods, the outer end of the telescopic rod passes through the roller into the picking rod, and the side surface of the outer end of the telescopic rod is connected to the inner wall of the hollow cylinder sleeved outside the picking rod through a connecting rod; the fallen leaf suction device includes an air channel and a fan provided in the air channel, and the air outlet of the air channel is connected to the collecting cabin.

[0004] However, the above-mentioned disclosed solutions have the following shortcomings: they are large in size and weight, and require electric energy to drive, making them unsuitable for use in complex woodlands. They are inconvenient to transfer and change positions, making them inconvenient to use in large areas of woodland mining. Manual bending is required to pick up branches, treetops, bark, leaves, roots, vines, shrubs, etc., resulting in high picking intensity, making them unsuitable for use in large-scale collection occasions. Summary of the Invention

[0005] The purpose of the present invention is to solve the above technical problems and provide a manual clamping device for forestry waste.

[0006] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0007] The technical solution adopted by the present invention to solve its technical problems is: the manual clamping device for forestry waste described in the present invention includes an extension shaft, a holding frame, an elastic member and a clamping unit; the holding frame is threadedly sleeved on the extension shaft; the elastic member is slidably sleeved on the extension shaft; the end of the elastic member is fixedly connected to a pull plate; the pull plate is slidably sleeved on the extension shaft; a thin tube is threadedly fixed on the holding frame; a thick tube is slidably sleeved on the thin tube; a first fastener is threadedly inserted into the corresponding opening of the thin tube on the thick tube; a functional frame is sleeved on the end of the thick tube; a second fastener is threadedly inserted into the corresponding opening of the thick tube on the functional frame; a clamping unit is provided in the functional frame; the clamping unit is fixed to the pull plate.

[0008] Furthermore, the clamping unit includes a bolt, a cylindrical shaft and a center shaft; the two bolts are symmetrically threaded in the functional frame; the cylindrical shaft is fixed on the bolt; a rotating block is rotatably sleeved on the cylindrical shaft; a square groove is opened on the rotating block corresponding to the cylindrical shaft; a clamping claw is detachably fixed to the rotating block; the upper end of the cylindrical shaft is fixedly connected to the center shaft; a first square frame is inserted in the square groove; the first frame is rotatably sleeved on the center shaft at the same time; a torsion spring is fixed on the first frame; the upper end of the torsion spring is fixedly connected to the second frame; the second frame is inserted in the functional frame; a rope fixing shaft is threadedly inserted in the opening on the rotating block; a traction rope is fixedly connected to the opening on the rope fixing shaft; the end of the traction rope passes through the rope threading groove and the rope threading hole and is fixed to the pull plate.

[0009] Furthermore, a third fastener is inserted into the symmetrical openings on the side of the functional frame; and a limited angle plate is sleeved on the corresponding rotating block of the third fastener.

[0010] Furthermore, a limiting groove is provided at the end of the extension shaft; an arm ring is rotatably sleeved on the end of the extension shaft; and a fourth fastener is threadedly inserted into a hole corresponding to the limiting groove on the arm ring.

[0011] Furthermore, the rope threading groove is provided on the thin tube; and the rope threading holes are symmetrically provided on the gripping frame.

[0012] Furthermore, the arm ring is made of hard plastic; the thin tube and the thick tube are made of aluminum alloy tubes; and the diameter of the cylindrical shaft is smaller than the thread diameter of the bolt.

[0013] The present invention provides a manual clamping device for forestry waste, which has the following beneficial effects:

[0014] 1. The present invention uses the palm of the hand to hold the gripping frame, and the fingers hook the pull plate to pull, thereby driving the clamping unit to clamp the three wastes. At the same time, the extension shaft is placed under the forearm. Therefore, when using the device to clamp the three wastes and move them upward, the arm can be used to exert force, so that heavier wastes can be lifted, and the wrist force requirement is small. Therefore, when clamping forestry wastes over a large area for a long time, the labor intensity on the wrist is reduced, and the efficiency of clamping and transferring the wastes is higher, which solves the problem that the existing clamping device is not suitable for clamping and collecting wastes over a large area.

[0015] 2. The present invention is to hold the grip frame with the palm of the hand, and then the gripping fingers drive the pull plate to move, thereby pulling the traction rope to move, so that the fixed rope shaft and the rotating block at the end rotate and drive the two clamping claws to move relative to each other, thereby forming an encircled space to clamp the forestry waste. At the same time, when the two clamping claws are not clamping the waste during the relative movement, the two clamping claws are staggered with each other. At this time, the device becomes a double-sided rake, which can easily move and stack a large amount of forestry waste scattered on the ground, so that the structural shape of the device can be changed as needed, so that the device can be flexibly used to quickly move a large amount of waste and clamp a small amount of waste, making it convenient to use under a large area of ​​forest, solving the problem that the existing forestry waste clamping device can only clamp and the clamping is laborious and inconvenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings;

[0017] Figure 1 This is a schematic diagram of the first three-dimensional structure of a manual clamping device for forestry waste;

[0018] Figure 2 This is a second three-dimensional structural schematic diagram of a manual gripping device for forestry waste;

[0019] Figure 3 This is a schematic diagram of a first partial half-section structure of a manual gripping device for forestry waste;

[0020] Figure 4 This is a schematic diagram of the second partial half-section structure of a manual gripping device for forestry waste;

[0021] Figure 5 This is a schematic diagram of a partial quarter-section structure of a manual gripping device for forestry waste.

[0022] Explanation of the numbers in the figure: 1. Extension shaft; 2. Holding frame; 3. Elastic part; 4. Pull plate; 5. Thin tube; 6. Thick tube; 7. First fastener; 8. Function frame; 9. Second fastener; 11. Bolt; 12. Cylindrical shaft; 13. Center shaft; 14. Rotating block; 15. First square frame; 16. Torsion spring; 17. Second square frame; 18. Clamping claw; 19. Rope fixing shaft; 20. Traction rope; 21. Rope threading groove; 22. Limiting angle plate; 23. Third fastener; 24. Rope threading hole; 25. Arm ring; 26. Limiting groove; 27. Fourth fastener; 28. Square groove. DETAILED DESCRIPTION

[0023] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up-down-left-right-front-back...) are only used to explain the relative position relationship - movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0026] See also Figure 1-5As shown, a manual gripping device for forestry waste, including an extension shaft 1, a gripping frame 2, an elastic member 3 and a gripping unit; the gripping frame 2 is threadedly sleeved on the extension shaft 1; the elastic member 3 is slidably sleeved on the extension shaft 1; the end of the elastic member 3 is fixedly connected to a pull plate 4; the pull plate 4 is slidably sleeved on the extension shaft 1; a thin tube 5 is threadedly fixedly connected to the gripping frame 2; a thick tube 6 is slidably sleeved on the thin tube 5; a first fastener 7 is threadedly inserted into a hole corresponding to the thin tube 5 on the thick tube 6; a functional frame 8 is sleeved on the end of the thick tube 6; a second fastener 9 is threadedly inserted into a hole corresponding to the thick tube 6 on the functional frame 8; the functional A clamping unit is provided in the frame 8; the clamping unit is fixedly connected to the pull plate 4; when working, the gripping frame 2 is held by the palm of the hand, and the fingers hook the pull plate 4 to pull, thereby driving the clamping unit to clamp the three leftovers, and at the same time the extension shaft 1 is placed under the forearm, so that when using this device to clamp the three leftovers and move them upward, the arm can be used to exert force, so that heavier leftovers can be lifted, and the wrist force requirement is small, so that when clamping forestry leftovers over a large area for a long time, the labor intensity on the wrist is reduced, and the efficiency of clamping and transferring leftovers is higher, which solves the problem that the existing clamping device is not suitable for clamping and collecting leftovers over a large area.

[0027] The clamping unit includes a bolt 11, a cylindrical shaft 12 and a central shaft 13; the two bolts 11 are symmetrically threaded and inserted into the functional frame 8; the cylindrical shaft 12 is fixedly connected to the bolt 11; a rotating block 14 is rotatably sleeved on the cylindrical shaft 12; a square groove 28 is opened on the rotating block 14 corresponding to the cylindrical shaft 12; a clamping claw 18 is detachably fixed to the rotating block 14; the upper end of the cylindrical shaft 12 is fixedly connected to the central shaft 13; a first square frame 15 is inserted into the square groove 28; the first frame 15 is rotatably sleeved on the central shaft 13 at the same time; a torsion spring 16 is fixed to the first frame 15; the upper end of the torsion spring 16 is fixedly connected to the second frame 17; the second frame 17 is inserted into the functional frame 8; a rope fixing shaft 19 is threadedly inserted into the opening on the rotating block 14; a traction rope 20 is fixedly connected to the opening on the rope fixing shaft 19; the end of the traction rope 20 passes through the rope threading groove 21 and The rope threading hole 24 is fixedly connected to the pulling plate 4; when working, the palm of the hand is held on the holding frame 2, and then the holding finger drives the pulling plate 4 to move, thereby pulling the traction rope 20 to move, so that the rope fixing shaft 19 at the end and the rotating block 14 rotate to drive the two clamping claws 18 to move relative to each other, thereby forming an encircled space for clamping the forestry three residues. At the same time, when the two clamping claws 18 do not clamp the three residues during the relative movement of the two clamping claws 18, the two clamping claws 18 are staggered with each other. At this time, the device becomes a double-sided rake, which can easily move and stack a large amount of forestry three residues scattered on the ground, so that the structural shape of the device can be changed as needed, so that the device can be flexibly used to quickly move a large amount of three residues and clamp a small amount of three residues, thereby making it convenient to use under a large area of ​​forest ground, solving the problem that the existing forestry three residues clamping device can only clamp and the clamping is laborious and inconvenient to operate.

[0028] The symmetrical openings on the side of the functional frame 8 are plugged with third fasteners 23; the limiting angle plate 22 is sleeved on the corresponding rotating block 14 on the third fastener 23; when working, the rotation of the rotating block 14 is limited by the limiting angle plate 22, and the rotation gap of the rotating block 14 is blocked, so that in actual use, the entry of forestry waste and the wear caused by it are prevented, and the rotation of the rotating block 14 is always in a low resistance state, while extending the service life, solving the problem that the rotating structure of the existing clamping device is exposed to the air and is easily stuck and blocked when clamping the waste.

[0029] The end of the extension shaft 1 is provided with a limiting groove 26; the end of the extension shaft 1 is rotatably sleeved with an arm ring 25; the arm ring 25 has a fourth fastener 27 threadedly inserted into the corresponding limiting groove 26 opening; when working, the fourth fastener 27 is rotated and inserted into the limiting groove 26, thereby limiting the distance between the arm ring 25 and the extension shaft 1, so that the arm ring 25 and the extension shaft 1 can rotate relative to each other, thereby facilitating the change of the angle of the gripping frame 2 after the arm is inserted into the arm ring 25. In actual use, after clamping the forestry leftovers, the leftovers can be tilted and moved to the container for storage, so that the arm and wrist are in a state of exerting force during the entire movement of the leftovers, thereby requiring less strength from the wrist and making it more comfortable to use. This solves the problem that the existing clamping device relies entirely on the strength of the wrist and palm to clamp and move the forestry leftovers, resulting in high labor intensity on the wrist and palm, which is not suitable for long-term use, and the weight of the leftovers that can be lifted is low.

[0030] The rope threading groove 21 is provided on the capillary tube 5; the rope threading hole 24 is symmetrically provided on the gripping frame 2; during operation, the symmetrical provision on the gripping frame 2 makes the reciprocating movement of the pull plate 4 balanced in force, with low friction and easy use; the rope threading groove 21 makes it easy to assemble the traction rope 20.

[0031] The arm ring 25 is made of hard plastic; the thin tube 5 and the thick tube 6 are made of aluminum alloy tube; the diameter of the cylindrical shaft 12 is smaller than the thread diameter of the bolt 11; during operation, the diameter of the cylindrical shaft 12 is smaller than the thread diameter of the bolt 11, so that the bolt 11 can pass through the corresponding hole on the functional frame 8 and is convenient for threaded fixation, and then the rotating block 14 sleeved on the cylindrical shaft 12 can be rotated smoothly with low resistance, and drives the first square frame 15 in the square groove 28 on the rotating block 14 to rotate synchronously, so that the torsion spring 16 twists to generate torque, and then after the external force disappears, the rotating block 14 can drive the clamping claw 18 to return to its original position; the thin tube 5 and the thick tube 6 made of aluminum alloy tube make it light and have sufficient supporting strength, reduce the pressure of holding, and facilitate long-term use; the arm ring 25 made of hard plastic makes it at room temperature in winter and summer, so that direct contact with the human body will not cause discomfort to the human body.

[0032] By adopting the above scheme, when the present invention is in use, the palm of the hand holds the gripping frame 2, the fingers hook the pull plate 4 and pull, thereby driving the clamping unit to clamp the three leftovers, and at the same time the extension shaft 1 is placed under the forearm, so that when the device is used to clamp the three leftovers and move upward, the arm can be used to exert force, so that a heavier weight of the three leftovers can be lifted, and the wrist force requirement is small, so that when clamping forestry three leftovers over a large area for a long time, the labor intensity on the wrist is reduced, and the efficiency of clamping and transferring the three leftovers is higher, which solves the problem that the existing clamping device is not suitable for clamping and collecting three leftovers over a large area; by holding the gripping frame 2 with the palm of the hand, and then holding the fingers to drive the pull plate 4 to move, thereby pulling The dynamic traction rope 20 moves, so that the fixed rope shaft 19 and the rotating block 14 at the end rotate and drive the two clamping claws 18 to move relative to each other, thereby forming an enclosed space for clamping forestry waste. At the same time, when the two clamping claws 18 are not clamping the waste in the process of relative movement, the two clamping claws 18 are staggered with each other. At this time, the device becomes a double-sided harrow, which can be convenient for quickly moving and stacking a large amount of forestry waste scattered on the ground, so that the structural shape of the device can be changed as needed, so that the device can be flexibly used to quickly move a large amount of waste and clamp a small amount of waste, so that it is convenient to use under a large area of ​​forest, solving the existing problems of clamping forestry waste. The problem that the device can only clamp and the clamping is laborious and inconvenient to operate and use; the rotation of the rotating block 14 is limited by the limiting angle plate 22, and the rotation gap of the rotating block 14 is blocked, so that in actual use, the entry of forestry waste and the wear are prevented, so that the rotation of the rotating block 14 is always in a low resistance state, and the service life is extended, and the problem that the rotating structure of the existing clamping device is exposed to the air and is easily stuck and blocked when clamping waste is solved; the fourth fastener 27 is inserted into the limiting groove 26 by rotating, thereby limiting the distance between the arm ring 25 and the extension shaft 1, so that the arm ring 25 and the extension shaft 1 can rotate relative to each other, which is convenient for inserting the arm After the arm ring 25 is inserted, the angle of the gripping frame 2 is changed. In actual use, after the forestry waste is clamped, the waste can be tilted and moved to the container for storage. When the waste is moved, the arm and wrist are in a state of exerting force, which requires less wrist strength and is more comfortable to use. This solves the problem that the existing clamping device relies entirely on the strength of the wrist and palm to clamp and move forestry waste, resulting in high labor intensity on the wrist and palm, which is not suitable for long-term use, and the weight of the waste that can be lifted is low. The symmetrical openings on the gripping frame 2 make the reciprocating movement of the pull plate 4 balanced, the friction is small, and it is easy to use. The rope threading groove 21 makes it easy to assemble the traction rope 20.Because the diameter of cylindrical shaft 12 is smaller than the thread diameter of bolt 11, bolt 11 can pass through the corresponding hole in functional frame 8 and be easily threaded and fixed. Rotating block 14, which is sleeved on cylindrical shaft 12, can then rotate smoothly and with low resistance, driving synchronous rotation of first frame 15 within square groove 28 on rotating block 14, thereby twisting torsion spring 16 and generating torque. After the external force disappears, rotating block 14 can drive gripping claw 18 to return to its original position. The thin tube 5 and thick tube 6 made of aluminum alloy tubes are lightweight while providing sufficient support strength, reducing hand-held pressure and facilitating long-term use. The arm ring 25 made of hard plastic maintains a normal temperature in both winter and summer, so direct contact with the human body will not cause discomfort.

[0033] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0034] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A manual clamping device for forestry waste, characterized by: The invention comprises an extension shaft (1), a holding frame (2), an elastic member (3) and a clamping unit; the holding frame (2) is threadedly sleeved on the extension shaft (1); the elastic member (3) is slidably sleeved on the extension shaft (1); the end of the elastic member (3) is fixedly connected to a pull plate (4); the pull plate (4) is slidably sleeved on the extension shaft (1); a thin tube (5) is threadedly fixedly connected to the holding frame (2); a thick tube (6) is slidably sleeved on the thin tube (5); a first fastener (7) is threadedly inserted into a hole corresponding to the thin tube (5) on the thick tube (6); a functional frame (8) is sleeved on the end of the thick tube (6); a second fastener (9) is threadedly inserted into a hole corresponding to the thick tube (6) on the functional frame (8); a clamping unit is arranged in the functional frame (8); the clamping unit is fixedly connected to the pull plate (4); A limiting groove (26) is provided at the end of the extension shaft (1); an arm ring (25) is rotatably sleeved on the end of the extension shaft (1); a fourth fastener (27) is threadedly inserted into a hole corresponding to the limiting groove (26) on the arm ring (25); The clamping unit comprises a bolt (11), a cylindrical shaft (12) and a central shaft (13); two of the bolts (11) are symmetrically threadedly inserted into the functional frame (8); the bolt (11) is fixedly connected to the cylindrical shaft (12); a rotating block (14) is rotatably sleeved on the cylindrical shaft (12); a square groove (28) is provided on the rotating block (14) corresponding to the cylindrical shaft (12); a clamping claw (18) is detachably fixed to the rotating block (14); the upper end of the cylindrical shaft (12) is fixedly connected to the central shaft (13); a rotating claw (18) is inserted into the square groove (28) A first square frame (15) is connected; the first square frame (15) is simultaneously rotated and sleeved on the central axis (13); a torsion spring (16) is fixedly connected to the first square frame (15); the upper end of the torsion spring (16) is fixedly connected to the second square frame (17); the second frame (17) is inserted into the functional frame (8); a threaded hole is opened on the rotating block (14) to insert a rope-fixing shaft (19); a traction rope (20) is fixedly connected to the hole on the rope-fixing shaft (19); the end of the traction rope (20) passes through the rope-threading groove (21) and the rope-threading hole (24) and is fixed to the pull plate (4).

2. A manual gripping device for forestry waste according to claim 1, characterized in that: A third fastener (23) is inserted into a symmetrical opening on the side of the functional frame (8); a corresponding rotating block (14) is sleeved on the third fastener (23) and a limited angle plate (22).

3. The manual gripping device for forestry waste according to claim 2, characterized in that: The rope threading groove (21) is provided on the capillary tube (5); and the rope threading holes (24) are symmetrically provided on the gripping frame (2).

4. The manual gripping device for forestry waste according to claim 3, characterized in that: The arm ring (25) is made of hard plastic; the thin tube (5) and the thick tube (6) are made of aluminum alloy tubes; and the diameter of the cylindrical shaft (12) is smaller than the thread diameter of the bolt (11).

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