Picking and collecting claw for forest tending and cutting residues

Abstract

The utility model relates to the technical field of forest tending and cutting residue collection, in particular to a picking and collecting claw for forest tending and cutting residues. Comprising a handle shell, a self-locking assembly is arranged in the handle shell, the self-locking assembly is connected with a sorting assembly, and the sorting assembly comprises two sorting claws; the self-locking assembly comprises a clamping groove formed in the inner corner of the handle shell, the clamping groove is of a cylindrical structure with a downward opening, wedge-shaped blocks are symmetrically embedded into the two side walls of the clamping groove, the end, protruding out of the clamping groove, of each wedge-shaped block is of an acute triangle structure with the horizontal upper edge, self-locking springs are arranged on the periphery of each wedge-shaped block, and a self-locking rod is movably arranged in the clamping groove. A handle is horizontally arranged on the side, located on the handle shell, of the self-locking rod, and the bottom end of the self-locking rod is connected with the picking assembly. The self-locking assembly is used for locking the picking claw after the residues are clamped, the hands of a user do not need to exert force in the process of clamping the residues into a small trailer, labor intensity is lowered, and hand fatigue is relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to forest tending harvests remaining collection technical field especially is related to a kind of for forest tending harvests remaining picking claw. BACKGROUND

[0002] Forest tending harvests remaining picking claw is a tool for collecting remaining in forest tending process, specifically collects remaining such as branchlet, branch, bark, root etc., the design of this tool aims at improving picking efficiency, reducing manual labor intensity, and ensuring that harvest remaining can be thoroughly cleaned, with the benefits of reducing fire risk, reducing the spread of disease and insect pests.

[0003] Due to the complex terrain of forest, the remaining after tending harvests is relatively dispersed, and there are still some remaining in many gullies, slope areas, etc. Large-scale collection is not convenient in this area, and it is not easy to enter by mechanical collection, and the economic cost is relatively high, so it is more suitable for small-scale manual collection. Artificial picking claw and small trailer are usually used for walking collection, but the existing picking claw only has one clamping point. Since branchlet, branch, bark and other remaining are relatively long, the clamping of one clamping point on the long remaining is not stable, and it is easy to shake and fall off. In addition, the existing picking claw needs to be clamped all the time after clamping the remaining, until the remaining is put into the small trailer. The user's hand continuously exerts force during the whole process, which causes the user's hand to fatigue, and long-time operation reduces the picking efficiency.

[0004] Therefore, the present application provides a forest tending harvests remaining picking claw to solve the problems raised in the background art. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a forest tending harvests remaining picking claw to solve the problems that the existing picking claw can only provide one clamping point when picking long remaining, the remaining is easy to shake and fall off, and the existing picking claw needs to be clamped all the time after clamping the remaining, until the remaining is put into the small trailer. The user's hand continuously exerts force during the whole process, which causes the user's hand to fatigue, and long-time operation reduces the picking efficiency.

[0006] To solve the above technical problems, the utility model provides a forest tending harvests remaining picking claw, which comprises a handle shell, a self-locking assembly is arranged in the handle shell, the self-locking assembly is connected with a picking assembly, and the picking assembly comprises two picking claws.

[0007] The self-locking assembly comprises a clamping groove arranged at the corner of the handle shell, the clamping groove is a cylindrical structure with an opening downward, wedge-shaped blocks are symmetrically embedded in the two side walls of the clamping groove, the end of the wedge-shaped block protruding from the clamping groove is an acute triangle structure with a horizontal upper edge, a self-locking spring is arranged around the wedge-shaped block, a self-locking rod is movably arranged in the clamping groove, the self-locking rod is horizontally arranged at one side of the handle shell, and the bottom end of the self-locking rod is connected with the picking assembly.

[0008] Further improvement of the technical scheme of the utility model lies in that: the top of the self-locking rod is provided with a self-locking head through a wheel rod, the self-locking head is a bowl-shaped structure with an opening downward, the diameter of the wheel rod is smaller than that of the self-locking rod, a self-locking wheel is movably arranged on the wheel rod, the diameters of the self-locking wheel, the self-locking head and the self-locking rod are equal, and they are all adapted to the width of the clamping groove, and the self-locking rod, the wheel rod and the self-locking head are integrally arranged.

[0009] Further improvement of the technical scheme of the utility model lies in that: the handle is fixedly connected with the self-locking rod.

[0010] Further improvement of the technical scheme of the utility model lies in that: the self-locking wheel is a wheel-shaped structure with a wide middle part and narrow two ends, and the upper part of the self-locking wheel is adapted to the bowl-shaped groove of the self-locking head.

[0011] Further improvement of the technical scheme of the utility model lies in that: the picking assembly comprises an upper transmission rod connected with the bottom end of the self-locking rod, a deflection spring connected with the bottom end of the upper transmission rod, a lower transmission rod connected with the bottom end of the deflection spring, a driving shaft connected with the bottom end of the lower transmission rod, first transmission arms connected with the driving shaft and symmetrically arranged on both sides of the driving shaft, driven shafts arranged at the ends of the two first transmission arms, second transmission arms connected with the driven shafts, two second transmission arms cross arranged, a fixed shaft arranged at the cross position of the two second transmission arms, and picking claws connected with the bottom ends of the two second transmission arms.

[0012] Further improvement of the technical scheme of the utility model lies in that: the positions of the driving shaft, the two driven shafts and the fixed shaft are connected in a diamond structure, a diamond-shaped protective shell is arranged outside, the fixed shaft is fixed on the protective shell, and a strip-shaped movable hole is formed in the protective shell and adapted to the driving shaft.

[0013] Further improvement of the technical scheme of the utility model lies in that: a rod sleeve is arranged between the fixed shell and the handle shell, and the upper transmission rod, the deflection spring and the lower transmission rod are covered in the rod sleeve.

[0014] Further improvement of the technical scheme of the utility model lies in that: the two picking claws are both n-shaped structures, the middle parts of the two picking claws are arc-shaped structures that are bent inward, rubber strips are arranged on the arc-shaped structures, the lower parts of the two picking claws are straight strip-shaped structures that are attached to each other, and anti-skid pieces are arranged on the straight strip-shaped structures.

[0015] Further improvement of the technical scheme of the utility model lies in that: the position where the handle is attached to the palm is a wave-shaped structure.

[0016] By means of the technical scheme, the utility model has the advantages of the following:

[0017] 1. The picking claw for forest tending and harvesting residues has the self-locking assembly, which is beneficial to locking the picking claw after clamping the residues, and the user does not need to continuously pull the handle, thereby reducing the labor intensity and hand fatigue. Specifically, the user pulls the handle, the handle drives the self-locking rod to move upward, the spherical outer surface of the self-locking head abuts against the wedge-shaped block and presses the wedge-shaped block to shrink inward, when the self-locking head moves above the wedge-shaped block, the wedge-shaped block is ejected under the action of the self-locking spring and clamps the bottom of the self-locking head, preventing the self-locking head from moving downward, thereby preventing the self-locking rod from moving downward and realizing the locking and clamping of the residues. The user clamps the residues by the picking claw, and the user's hand does not need to exert force during the process of putting the residues into the small trailer, thereby reducing the labor intensity.

[0018] 2. The picking claw for forest tending and harvesting residues has the self-locking assembly, which is beneficial to quickly releasing the self-locking state and can be operated by one hand, thereby being convenient to use. Specifically, when the user needs to release the self-locking state and put the residues into the small trailer, the user pulls the handle upward, the upper surface of the self-locking wheel abuts against the wedge-shaped block and presses the wedge-shaped block to shrink inward, when the self-locking wheel moves above the wedge-shaped block, the wedge-shaped block is ejected under the action of the self-locking spring, at this time, the user releases the hand, and the self-locking rod automatically moves downward under the action of the deflection spring. Since the end of the wedge-shaped block clamping the groove is an upper horizontal acute triangle structure, the wedge-shaped block hinders the downward movement of the self-locking wheel, the wheel rod and the self-locking head continuously move downward, when the bowl-shaped groove of the self-locking head covers the upper part of the self-locking wheel, the self-locking head presses the self-locking wheel to move downward, at this time, the self-locking wheel and the self-locking head combine to form a spherical structure, and continuously move downward under the action of the deflection spring, and can smoothly pass through the wedge-shaped block. After passing through the wedge-shaped block, the self-locking wheel slides to the bottom of the wheel rod under the action of gravity and returns to the initial state of the next picking and grabbing. Releasing the self-locking state only needs to pull the handle upward for a short distance, and is quick and convenient to operate.

[0019] 3. The utility model provides a kind of for forest tending harvest residue picks up claw, the picks up claw is set up two picks up claw, it is favorable to provide two clamping points to relatively long residue, prevent from causing wobble in clamping process, even fall off, improve the stability of clamping, specifically, after user pulls handle, by sequentially driving upper transmission rod, deflection spring, lower transmission rod, driven shaft is pulled upwards to the main shaft, since fixed shaft is fixed on protective shell, position does not change, two driven shafts relatively move, to make the intersection angle of second transmission arm smaller, realize that picks up claw relatively moves and clamps residue, two picks up claw are n type structure, relatively move and provide two clamping points to residue, firmly grasp, enhance stability;The middle part of two picks up claw is relatively inward curved arc structure, arc structure is favorable to clamp branch and twig, the lower part of two picks up claw is relatively adhered straight bar structure, straight bar structure is favorable to clamp bark, adhesive tape is set on arc structure, anti-skid piece is set on straight bar structure, adhesive tape and anti-skid piece are both elastic member, on the one hand play the role of antiskid, on the other hand further enhance elastic deflection, prevent residue from falling, enhance the stability of clamping. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in prior art, the following will briefly introduce the drawings needed to be used in specific embodiment or prior art description, obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0021] Figure 1 It is a kind of for forest tending harvest residue picks up claw's overall schematic view;

[0022] Figure 2 It is Figure 1 The enlarged schematic view of part A;

[0023] Figure 3 It is a kind of for forest tending harvest residue picks up claw's internal structure schematic view;

[0024] Figure 4 It is Figure 3 The enlarged schematic view of part B;

[0025] Figure 5 It is the structure schematic view of the utility model self-locking assembly;

[0026] Figure 6 It is Figure 5 The enlarged schematic view of part C;

[0027] Figure 7 It is the assembly structure schematic view of the utility model self-locking wheel and self-locking rod;

[0028] Figure 8 This is a schematic diagram of the structure of the self-locking wheel of this utility model;

[0029] Figure 9 This is a schematic diagram of the self-locking rod of this utility model;

[0030] Figure 10 This is a schematic diagram illustrating the process changes of the self-locking component of this utility model.

[0031] Reference numerals: 1. Handle housing; 2. Self-locking assembly; 21. Slot; 22. Wedge block; 23. Self-locking spring; 24. Self-locking rod; 25. Handle; 26. Wheel rod; 27. Self-locking head; 28. Self-locking wheel; 29. ​​Groove; 3. Picking assembly; 301. Picking claw; 302. Upper transmission rod; 303. Deflection spring; 304. Lower transmission rod; 305. Drive shaft; 306. First transmission arm; 307. Driven shaft; 308. Second transmission arm; 309. Fixed shaft; 310. Protective shell; 311. Movable hole; 312. Rod sleeve; 313. Rubber strip; 314. Anti-slip plate. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The utility model makes further explanation and description in combination with specific implementation below.

[0036] As Figures 1-10 The utility model provides a kind of picking up claw 301 for forest tending harvest residue, as shown in the drawing, it includes handle shell 1, handle shell 1 inside hollow, self-locking assembly 2 is arranged in handle shell 1, self-locking assembly 2 is connected and is arranged picking up assembly 3, picking up assembly 3 includes two picking up claws 301;Self-locking assembly 2 includes the clamping groove 21 being arranged in the corner of handle shell 1, clamping groove 21 is fixed in handle shell 1, clamping groove 21 is the cylindrical structure with the opening downwards, wedge 22 is symmetrically embedded in the two side walls of clamping groove 21, the end of wedge 22 protruding clamping groove 21 is the acute triangle structure with upper edge horizontal, self-locking spring 23 is arranged on the circumference of wedge 22, self-locking spring 23 is used to eject wedge 22, self-locking rod 24 is movably arranged in clamping groove 21, self-locking rod 24 is located at one side of handle shell 1 and horizontally arranged pull handle 25, pull handle 25 is fixedly connected with self-locking rod 24, the position of pull handle 25 and palm adhesion is wave-shaped structure, it is favorable to hold, the bottom end of self-locking rod 24 is connected with picking up assembly 3.The top of self-locking rod 24 is provided with self-locking head 27 through wheel rod 26, self-locking head 27 is the bowl-shaped structure with the opening downwards, the diameter of wheel rod 26 is less than the diameter of self-locking rod 24, self-locking wheel 28 is movably arranged on wheel rod 26, self-locking wheel 28 moves along wheel rod 26, the diameter of self-locking wheel 28, self-locking head 27 and self-locking rod 24 is equal, and all are adapted to the width of clamping groove 21, self-locking rod 24, wheel rod 26 and self-locking head 27 are integrally arranged;Self-locking wheel 28 is the wheel-shaped structure with middle wide and both ends narrow, and the upper portion of self-locking wheel 28 is adapted to the bowl-shaped recess 29 of self-locking head 27.The picking up claw 301 is locked after clamping residue by being provided with self-locking assembly 2, until the process of putting residue into small trailer, user hand does not need to exert force, hand no longer needs to continuously pull pull handle 25, reduces labor intensity, reduces hand fatigue, self-locking assembly 2 is favorable to quickly release self-locking state, for user, only needs to pull pull handle 25 to be pulled up shorter distance, can be operated by single hand, convenient to use.

[0037] S1 process: user pulls pull handle 25, pull handle 25 drives self-locking rod 24 to move upwards, the spherical outer surface of self-locking head 27 is close to wedge 22, and wedge 22 is compressed to shrink inwards.

[0038] S2 process: when self-locking head 27 moves to the upper portion of wedge 22, wedge 22 is ejected under the action of self-locking spring 23, and is clamped with the bottom of self-locking head 27, to prevent self-locking head 27 from moving downwards, to prevent self-locking rod 24 from moving downwards, to realize the locking clamping of residue.

[0039] S3 process: when the user needs to release the self-locking state, the user pulls the handle 25 upward, the upper surface of the self-locking wheel 28 abuts against the wedge block 22, and the wedge block 22 is compressed inward, when the self-locking wheel 28 moves above the wedge block 22, the wedge block 22 is ejected under the action of the self-locking spring 23, at this time the user releases the hand.

[0040] S4 process: the self-locking rod 24 automatically moves downward under the action of the deflection spring 303, since the end of the wedge block 22 protruding from the slot 21 is an acute triangle structure with the upper edge being horizontal, the wedge block 22 will hinder the downward movement of the self-locking wheel 28, the wheel rod 26 and the self-locking head 27 continue to move downward, when the bowl-shaped groove 29 of the self-locking head 27 covers the upper part of the self-locking wheel 28, the self-locking head 27 compresses the self-locking wheel 28 to move downward, at this time, the self-locking wheel 28 and the self-locking head 27 combine to form a spherical structure, both continue to move downward under the action of the deflection spring 303, and can smoothly pass through the wedge block 22, after passing through the wedge block 22, the self-locking wheel 28 slides to the bottom of the wheel rod 26 under the action of gravity, and returns to the initial state for the next picking and grabbing.

[0041] As Figures 1-4As shown, in the embodiment, the picking assembly 3 comprises an upper transmission rod 302 connected to the bottom end of the self-locking rod 24, the bottom end of the upper transmission rod 302 is connected to a deflection spring 303, the deflection spring 303 enables the handle 25 to have elastic deflection when pulled and released, prevents structural fatigue failure, enhances the stability of transmission, the bottom end of the deflection spring 303 is connected to a lower transmission rod 304, the bottom end of the lower transmission rod 304 is connected to a driving shaft 305, the driving shaft 305 is symmetrically connected to a first transmission arm 306 on both sides, the ends of the two first transmission arms 306 are respectively provided with a driven shaft 307, each driven shaft 307 is connected to a second transmission arm 308, the two second transmission arms 308 are cross-connected, and a fixed shaft 309 is arranged at the cross position, and the bottom ends of the two second transmission arms 308 are respectively connected to picking claws 301. The positions of the driving shaft 305, the two driven shafts 307 and the fixed shaft 309 are connected in a diamond structure, and a diamond-shaped protective shell 310 is arranged on the outside, the fixed shaft 309 is fixed on the protective shell 310, and a strip-shaped movable hole 311 is formed in the protective shell 310. A rod sleeve 312 is arranged between the fixed shell and the handle shell 1, and the rod sleeve 312 covers the upper transmission rod 302, the deflection spring 303 and the lower transmission rod 304. The two picking claws 301 are arranged, which is beneficial to providing two clamping points for long residues, preventing shaking or even falling off during clamping, improving the stability of clamping. Specifically, after the user pulls the handle 25, the upper transmission rod 302, the deflection spring 303 and the lower transmission rod 304 are sequentially transmitted, the driving shaft 305 is pulled upward, the fixed shaft 309 is fixed on the protective shell 310 and does not change position, the two driven shafts 307 move relatively, so that the cross angle of the second transmission arms 308 decreases, the picking claws 301 relatively move to clamp the residues, the two picking claws 301 are n-shaped structures, relatively move to provide two clamping points for the residues, firmly grasp, and enhance the stability; the middle parts of the two picking claws 301 are relatively inwardly curved arc structures, the arc structures are beneficial to clamping branches and twigs, the lower parts of the two picking claws 301 are relatively matched straight strip structures, the straight strip structures are beneficial to clamping tree bark, a rubber strip 313 is arranged on the arc structure, and a non-slip piece 314 is arranged on the straight strip structure, the rubber strip 313 and the non-slip piece 314 are elastic members, which play a role in preventing slipping on one hand, and further enhance the elastic deflection on the other hand, prevent the residues from falling off, and enhance the stability of clamping.

[0042] The utility model also provides a working principle of picking claw 301 for forest tending and felling residues:

[0043] When in use, the user holds the handle shell 1 and pulls the handle 25, which drives the upper transmission rod 302, the deflection spring 303 and the lower transmission rod 304 in sequence, and pulls the driving shaft 305 upward, while the self-locking assembly 2 performs the S1 process; since the fixed shaft 309 is fixed on the protective shell 310 and does not change in position, the two driven shafts 307 move relatively, so that the intersection angle of the second transmission arm 308 decreases, and the relative movement of the two picking claws 301 is realized to clamp the remaining objects, and after the clamping is completed, the self-locking assembly 2 performs the S2 process; the two picking claws 301 are both n-shaped structures, and the relative movement provides two clamping points for the remaining objects, so that the picking is firm and the stability is enhanced; the middle part of the two picking claws 301 is an arc-shaped structure that bends relatively inward, the arc-shaped structure is used for clamping branches and twigs, and the lower part of the two picking claws 301 is a straight bar-shaped structure that fits relatively, and the straight bar-shaped structure is used for clamping tree bark; the rubber strip 313 and the anti-skid sheet 314 play the role of anti-skid on the one hand, and further enhance the elastic deflection on the other hand, so as to prevent the remaining objects from falling off and enhance the stability of clamping.

[0044] S1 process: the user pulls the handle 25, the handle 25 drives the self-locking rod 24 to move upward, the spherical outer surface of the self-locking head 27 abuts against the wedge-shaped block 22 and presses the wedge-shaped block 22 to shrink inward.

[0045] S2 process: when the self-locking head 27 moves above the wedge-shaped block 22, the wedge-shaped block 22 is ejected under the action of the self-locking spring 23, is clamped at the bottom of the self-locking head 27, prevents the self-locking head 27 from moving downward, thereby preventing the self-locking rod 24 from moving downward, and realizing the locking and clamping of the remaining objects.

[0046] S3 process: when the user needs to release the self-locking state and places the remaining objects into the small trailer, the user pulls the handle 25 upward, the upper surface of the self-locking wheel 28 abuts against the wedge-shaped block 22 and presses the wedge-shaped block 22 to shrink inward, when the self-locking wheel 28 moves above the wedge-shaped block 22, the wedge-shaped block 22 is ejected under the action of the self-locking spring 23, and at this time the user releases the hand.

[0047] S4 process: the self-locking rod 24 automatically moves downward under the action of the deflection spring 303, since the end of the wedge-shaped block 22 that protrudes into the clamping groove 21 is an acute triangle structure with the upper edge being horizontal, the wedge-shaped block 22 will hinder the self-locking wheel 28 from moving downward, the wheel rod 26 and the self-locking head 27 continue to move downward, when the bowl-shaped groove 29 of the self-locking head 27 covers the upper part of the self-locking wheel 28, the self-locking head 27 presses the self-locking wheel 28 to move downward, at this time, the self-locking wheel 28 and the self-locking head 27 combine to form a spherical structure, both of which continue to move downward under the action of the deflection spring 303, can smoothly pass through the wedge-shaped block 22, when passing through the wedge-shaped block 22, the self-locking wheel 28 slides to the bottom of the wheel rod 26 under the action of gravity, and returns to the initial state for the next picking and grabbing.

[0048] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A forest tending harvest residue raking claw characterized by, Includes a handle housing (1), a self-locking component (2) is provided inside the handle housing (1), a picking component (3) is connected to the self-locking component (2), and the picking component (3) includes two picking claws (301). The self-locking component (2) includes a slot (21) located at the inner corner of the handle housing (1). The slot (21) is a cylindrical structure with the opening facing downward. Wedge blocks (22) are symmetrically embedded in the two side walls of the slot (21). The end of the wedge block (22) protruding from the slot (21) is a horizontal acute-angled triangle structure. A self-locking spring (23) is provided around the wedge block (22). A self-locking rod (24) is movably provided in the slot (21). A handle (25) is horizontally provided on one side of the handle housing (1). The bottom end of the self-locking rod (24) is connected to the picking component (3).

2. The residue picking-up claw for forest tending according to claim 1, wherein The top of the self-locking rod (24) is provided with a self-locking head (27) via a wheel rod (26). The self-locking head (27) has a bowl-shaped structure with the opening facing downwards. The diameter of the wheel rod (26) is smaller than the diameter of the self-locking rod (24). A self-locking wheel (28) is movably sleeved on the wheel rod (26). The diameters of the self-locking wheel (28), the self-locking head (27), and the self-locking rod (24) are equal and all fit the width of the slot (21). The self-locking rod (24), the wheel rod (26), and the self-locking head (27) are set as a whole.

3. The residue collecting claw for forest tending according to claim 1, wherein The handle (25) is fixedly connected to the self-locking rod (24).

4. A claw for collecting logging residues during forest tending, as described in claim 2, characterized in that, The self-locking wheel (28) has a wheel-shaped structure that is wide in the middle and narrow at both ends, and the upper part of the self-locking wheel (28) is adapted to the bowl-shaped groove (29) of the self-locking head (27).

5. A claw for collecting logging residues during forest tending, as described in claim 1, characterized in that, The picking assembly (3) includes an upper transmission rod (302) connected to the bottom end of the self-locking rod (24), a deflection spring (303) connected to the bottom end of the upper transmission rod (302), a lower transmission rod (304) connected to the bottom end of the deflection spring (303), a drive shaft (305) connected to the bottom end of the lower transmission rod (304), a first transmission arm (306) symmetrically connected to both sides of the drive shaft (305), a driven shaft (307) respectively provided at the end of the two first transmission arms (306), a second transmission arm (308) connected to each driven shaft (307), the two second transmission arms (308) are arranged crosswise, and a fixed shaft (309) is provided at the crosswise position, and a picking claw (301) is respectively connected to the bottom end of the two second transmission arms (308).

6. A claw for collecting logging residues during forest tending, as described in claim 5, characterized in that, The positions of the drive shaft (305), two driven shafts (307) and the fixed shaft (309) are connected in a diamond-shaped structure, and a diamond-shaped protective shell (310) is provided on the outside. The fixed shaft (309) is fixed on the protective shell (310), and a strip-shaped movable hole (311) is opened on the protective shell (310) to accommodate the drive shaft (305).

7. A claw for collecting logging residues during forest tending, as described in claim 5, characterized in that, A rod sleeve (312) is provided between the fixed shell and the handle shell (1). The rod sleeve (312) encloses the upper transmission rod (302), the deflection spring (303) and the lower transmission rod (304).

8. A claw for collecting logging residues during forest tending, as described in claim 5, characterized in that, Both picking claws (301) are n-shaped structures. The middle part of the two picking claws (301) is an arc-shaped structure that curves inward relative to each other. A rubber strip (313) is provided on the arc-shaped structure. The lower part of the two picking claws (301) is a straight strip structure that fits together relative to each other. An anti-slip plate (314) is provided on the straight strip structure.

9. A claw for collecting logging residues during forest tending, as described in claim 1, characterized in that, The handle (25) has a wave-shaped structure at the point where it contacts the palm.

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