Pear tree branch pulling device

Abstract

The utility model discloses a pear tree branch pulling device which comprises a fixing ring, a retaining ring and a tensioning assembly. The fixing ring and the retaining ring are two groups of symmetrical semi-ring structures, one side of the fixing ring and one side of the retaining ring are hinged through a hinged support, the other side of the fixing ring and the other side of the retaining ring are detachably connected through a locking bolt, the fixing ring is fixedly provided with a tensioning assembly through a connecting base, and the tensioning assembly comprises a wheel base, a ratchet wheel, a deflection shaft, ratchet wheel teeth and a fixing rod; the number of the wheel seats is two, the two wheel seats are fixed to the two sides of the connecting seat through fixing rods, the ratchet wheels are rotationally matched in shaft holes of the two wheel seats through shaft rods, a deflection shaft is rotationally matched between the two wheel seats, a ratchet wheel tooth is fixed to the deflection shaft, and the ratchet wheel tooth has the trend of deflecting downwards under the action of gravity and limits one-way rotation of the ratchet wheels. One side of the ratchet wheel extends out of the wheel seat and is coaxially and fixedly connected with a reel, and a cable is wound on the reel; the branch pulling device has the advantages that the branch pulling device is fixed without depending on the land, the branch pulling continuity is good, and limitation of the hardness of the land is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of fruit tree planting, and particularly relates to a pear tree branch puller. Background Art

[0002] Pear trees have a long lifespan and can grow particularly large. When planting pear trees, fruit farmers will pull and remove branches in order to prevent the trees from growing upwards to facilitate picking and care.

[0003] The patent document with publication number CN216532759U discloses a novel pear tree branch pulling device. The novel pear tree branch pulling device comprises a box body; a plurality of first hanging rings, which are all arranged on the top outer wall of the box body; a plurality of connecting ropes, which are respectively fixedly installed on the plurality of first hanging rings; a plurality of second hanging rings, which are respectively arranged on the outer walls around the box body; a plurality of storage boxes, which are symmetrically arranged on the outer walls on both sides of the box body; and a plurality of stabilizing components.

[0004] The above-mentioned comparative document relies on threaded stabilizing rods nailed into the ground to fix the device. However, when the soil around the pear tree is soft, or after rain, the branches of the pear tree can easily pull the branch puller described in the comparative document out of the ground under the action of their elastic force, causing the pulled pear branches to lose traction and the branch pulling effect. Utility Model Content

[0005] The utility model aims to provide a pear tree branch puller to solve the technical problems mentioned in the above background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A pear tree branch puller comprises: a fixing ring, a buckle ring, and a tensioning assembly; the fixing ring and the buckle ring are two groups of symmetrical semi-ring structures, one side of the fixing ring and the buckle ring is hinged by a hinge seat, and the other side is detachably connected by a locking bolt, and a connecting seat with a block structure is fixed on the side of the fixing ring away from the buckle ring, and the tensioning assembly is fixed on the connecting seat, and the tensioning assembly comprises: a wheel seat, a ratchet, a deflection shaft, ratchet teeth, and a fixing rod; the number of the wheel seats is two groups, and the two groups of wheel seats are fixed to both sides of the connecting seat by fixing rods, and the two groups of wheel seats are provided with concentric axial holes, and the ratchet is rotatably fitted in the axial holes of the two groups of wheel seats by an axial rod, and a deflection shaft is rotatably fitted between the two groups of wheel seats, and a ratchet tooth is fixed on the deflection shaft, and the ratchet tooth has a tendency to deflect downward under the action of gravity, limiting the unidirectional rotation of the ratchet, and one side of the ratchet protrudes to the outside of the wheel seat and is coaxially fixedly connected to a capstan, and a cable is wound around the capstan.

[0008] Furthermore, in order to avoid the instability of gravity and prevent the ratchet teeth from changing their gravity direction due to installation orientation problems, causing abnormal deflection of the ratchet teeth and loosening of the ratchet teeth; the tensioning assembly also includes: a spring and a spring seat; a hole is provided on the upper side of the ratchet tooth, in which a spring is embedded and fixed, and one end of the spring away from the ratchet tooth is fixedly connected to a spring seat of a plate-like structure, and the spring seat is fixed to the side surfaces of the two sets of wheel seats.

[0009] Furthermore, in order to facilitate loosening of the cable after the branch pulling is released, a groove is provided on the side of the deflection shaft for convenient screwing of a screwdriver.

[0010] Furthermore, in order to facilitate the connection between the cable and the pear tree branch, the end of the cable is folded back and fixed with a clamp to form a loop at the end of the cable.

[0011] Furthermore, in order to guide the cable and prevent it from being entangled on the winch during recovery, a guide assembly is fixed to the fixing ring above the winch. The main body of the guide assembly is a guide rod with a rod-like structure. A guide cylinder with a cylindrical structure is fixed to the end of the guide rod. The guide cylinder is located just above the middle of the winch, and the cable passes through the guide cylinder.

[0012] Furthermore, in order to reduce the wear of the cable caused by the edge of the guide cylinder, the edge of the inner hole of the guide cylinder is chamfered to form a rounded edge.

[0013] Furthermore, in order to facilitate the detachable connection of the locking bolt, the fixing ring and the buckle ring are each provided with a group of horizontally structured slots on the side away from the hinge seat to form a slot. A threaded ball with a spherical structure is rotatably fitted in the slot of the fixing ring through an axial rod. The threaded ball is provided with a threaded hole with the axis line horizontal. The locking bolt is threadedly fitted in the threaded hole of the threaded ball. The other end of the locking bolt is embedded in the slot of the buckle ring. The bolt cap of the locking bolt is located on the side of the slot away from the fixing ring. The bolt cap of the locking bolt is a hand-tightened bolt cap.

[0014] Furthermore, in order to reduce damage to the skin of the pear tree, the inner ring surfaces of the fixing ring and the buckle ring are padded with elastic foam pads.

[0015] Furthermore, in order to prevent others from being able to rotate the capstan, the rotation of the capstan is achieved by a detachable rotating rod, which includes: an insertion rod, a connecting rod, and a rotating handle. A non-circular hole is provided on the shaft of the ratchet, and the longitudinal cross-sectional profile of the insertion rod is consistent with the longitudinal cross-sectional profile of the hole. The insertion rod is inserted into the shaft of the ratchet by means of the hole. The insertion rod is vertically connected to a connecting rod of a rod-like structure, and a rotating handle of a round rod structure is vertically fixed to the other end of the connecting rod away from the insertion rod.

[0016] In summary, the utility model has the following beneficial effects:

[0017] The utility model does not rely on the ground for fixing, has good branch pulling continuity, and is not limited by the softness or hardness of the ground: through the establishment of a fixing ring and a buckle ring; the bolt cap of the hand-twisted locking bolt clamps the fixing ring and the buckle ring and then fixes the fixing ring and the buckle ring to the trunk of the pear tree, or to a thicker branch, and then rotates the handle around the insertion rod, and under the lever action of the connecting rod, the rotating rotating rod drives the ratchet to rotate, because the ratchet teeth are established and under the elastic force of the spring, the ratchet teeth will always remain in mesh with the ratchet, so the ratchet will only rotate in one direction, so the winch coaxially connected to the ratchet will also only rotate in one direction, so the unidirectionally rotating winch will tighten the cable wrapped thereon, and then perform branch pulling operations on the pear tree branches connected to the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cable guide structure of the utility model;

[0020] Figure 3 yes Figure 2 A magnified view of the structure in the middle;

[0021] Figure 4 yes Figure 2 A magnified view of the structure at B in the middle;

[0022] Figure 5 It is a schematic diagram of the exploded structure of the tensioning assembly in the utility model;

[0023] Figure 6 It is a structural schematic diagram of the rotating rod in the utility model;

[0024] In the figure, 1. fixing ring; 2. buckle ring; 3. hinge seat; 4. locking bolt; 5. connecting seat; 6. tensioning assembly; 7. rotating rod; 8. guide assembly; 9. capstan; 10. cable; 11. chuck; 12. threaded ball; 13. foam pad; 21. slot; 61. wheel seat; 62. ratchet; 63. deflection shaft; 64. ratchet teeth; 65. spring; 66. spring seat; 67. fixing rod; 68. groove; 71. plug rod; 72. connecting rod; 73. rotating handle; 81. guide rod; 82. guide cylinder; 83. rounded edge; 101. slip-on mouth. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] Example:

[0027] See also Figure 1-Figure 6 , the utility model provides a technical solution:

[0028] A pear tree branch puller, comprising: a fixing ring 1, a buckle ring 2, and a tensioning assembly 6; the fixing ring 1 and the buckle ring 2 are two groups of symmetrical semi-ring structures, one side of the fixing ring 1 and the buckle ring 2 is hinged by a hinge seat 3, and the other side is detachably connected by a locking bolt 4, a connecting seat 5 of a block structure is fixed on the side of the fixing ring 1 away from the buckle ring 2, and a tensioning assembly 6 is fixed on the connecting seat 5, and the tensioning assembly 6 comprises: a wheel seat 61, a ratchet 62, a deflection shaft 63, ratchet teeth 64, and a fixing rod 67; the number of the wheel seat 61 is two groups, The two groups of wheel seats 61 are fixed on both sides of the connecting seat 5 by a fixing rod 67. The two groups of wheel seats 61 are provided with concentric axial holes. The ratchet 62 is rotatably fitted in the axial holes of the two groups of wheel seats 61 by an axial rod. A deflection shaft 63 is rotatably fitted between the two groups of wheel seats 61. A ratchet tooth 64 is fixed on the deflection shaft 63. The ratchet tooth 64 has a tendency to deflect downward under the action of gravity, limiting the unidirectional rotation of the ratchet 62. One side of the ratchet 62 protrudes out to the outside of the wheel seat 61 and is coaxially fixedly connected to a capstan 9, on which a cable 10 is wound.

[0029] In order to avoid the instability of gravity and prevent the ratchet teeth 64 from changing their gravity direction due to installation orientation problems, causing the ratchet teeth 64 to deflect abnormally and make the ratchet teeth 64 loose; the tensioning assembly 6 also includes: a spring 65 and a spring seat 66; a hole is provided on the upper side of the ratchet tooth 64, and a spring 65 is embedded and fixed in the hole, and one end of the spring 65 away from the ratchet tooth 64 is fixedly connected to a spring seat 66 of a plate-like structure, and the spring seat 66 is fixed to the sides of the two sets of wheel seats 61.

[0030] In order to facilitate loosening of the cable 10 after the branch pulling is released, a groove 68 is provided on the side of the deflection shaft 63 for convenient screwing with a screwdriver.

[0031] In order to facilitate the connection between the cable 10 and the pear tree branch, the end of the cable 10 is folded back and fixed with a clamp 11 to form a loop opening 101 at the end of the cable 10 .

[0032] In order to guide the cable 10 and prevent it from not being entangled on the winch 9 when being recovered, the fixing ring 1 is fixed with a guide assembly 8 above the winch 9. The main body of the guide assembly 8 is a guide rod 81 with a rod-like structure. A guide cylinder 82 with a cylindrical structure is fixed to the end of the guide rod 81. The guide cylinder 82 is located just above the middle of the winch 9, and the cable 10 passes through the guide cylinder 82.

[0033] In order to reduce the wear of the cable 10 caused by the edge of the guide cylinder 82 , the edge of the inner hole of the guide cylinder 82 is chamfered to form a rounded edge 83 .

[0034] In order to facilitate the detachable connection of the locking bolt 4, a group of horizontally structured slots are respectively provided on the side of the fixing ring 1 and the buckle ring 2 away from the hinge seat 3 to form a slot 21. A spherical threaded ball 12 is rotatably fitted in the slot 21 of the fixing ring 1 by using an axial rod. The threaded ball 12 is provided with a threaded hole with the axis line horizontal. The locking bolt 4 is threadedly fitted in the threaded hole of the threaded ball 12. The other end of the locking bolt 4 is embedded in the slot 21 of the buckle ring 2. The bolt cap of the locking bolt 4 is located on the side of the slot 21 away from the fixing ring 1; the bolt cap of the locking bolt 4 is a hand-tightened bolt cap.

[0035] In order to reduce the damage to the skin of the pear tree, the inner ring surfaces of the fixing ring 1 and the buckle ring 2 are padded with elastic foam pads 13 .

[0036] In order to prevent others from being able to rotate the winch 9, the rotation of the winch 9 is achieved by a detachable rotating rod 7, which includes an insertion rod 71, a connecting rod 72, and a rotating handle 73. A non-circular hole is provided on the shaft of the ratchet 62, and the longitudinal cross-sectional profile of the insertion rod 71 is consistent with the longitudinal cross-sectional profile of the hole. The insertion rod 71 is inserted into the shaft of the ratchet 62 by relying on the hole. The insertion rod 71 is vertically connected to a connecting rod 72 of a rod-like structure, and a rotating handle 73 of a round rod structure is vertically fixed to the other end of the connecting rod 72 away from the insertion rod 71.

[0037] Brief description of the usage process:

[0038] When in use, unscrew the locking bolt 4 from the threaded ball 12, surround and fix the fixing ring 1 and the buckle ring 2 on the trunk of the pear tree, or on a thicker branch, then screw the locking bolt 4 into the threaded ball 12, and manually tighten the bolt cap of the locking bolt 4 to clamp the fixing ring 1 and the buckle ring 2 to fix the fixing ring 1 and the buckle ring 2 on the trunk of the pear tree, or on a thicker branch. When the trunk of the fixed pear tree is thinner, replace it with a thicker foam pad 13.

[0039] After the fixation is completed, the loop mouth 101 of the cable 10 is put on the branch that needs to be pulled, and then the clamp 11 is loosened to tighten the loop mouth 101. After the loop mouth 101 is tightened, the clamp 11 is locked to complete the fixation of the branch to be pulled and the cable 10. Then the insertion rod 71 of the rotating rod 7 is inserted into the rotating shaft of the ratchet 62, and the handle 73 is rotated around the insertion rod 71. Under the lever action of the connecting rod 72, the rotating rotating rod 7 drives the ratchet 62 to rotate. Because the ratchet teeth 64 are set and the elastic force of the spring 65, the ratchet teeth 64 will always remain in mesh with the ratchet 62, so the ratchet 62 will only rotate in one direction, so the winch 9 coaxially connected to the ratchet 62 will also only rotate in one direction, so the unidirectional rotating winch 9 will tighten the cable 10 wrapped thereon, and then the pear tree branch connected to the cable 10 will be pulled.

[0040] When there is no need to rotate the winch 9, the rotating rod 7 and the tensioning assembly 6 are separated to prevent others from randomly rotating the ratchet and causing damage to the branch pulling operation. One rotating rod 7 can also rotate multiple groups of branch pullers described in the utility model to save costs. When the branch pulling is completed, a screwdriver can be used to insert the pulling groove 68 to rotate the rotating shaft 63 and the ratchet teeth 64 as a whole, so that the ratchet teeth 64 and the ratchet 62 are disengaged, and then the tension of the cable 10 is released, and the cable 10 can be removed from the pulled branch, and then the locking bolt 4 is loosened to remove the fixing ring 1 and the buckle 2 from the main trunk of the pear tree or the thicker branches.

[0041] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A pear tree branch puller, comprising: A fixing ring (1), a buckle ring (2), and a tensioning assembly (6); characterized in that: the fixing ring (1) and the buckle ring (2) are two groups of symmetrical semi-ring structures, one side of the fixing ring (1) and the buckle ring (2) is hinged by a hinge seat (3), and the other side is detachably connected by a locking bolt (4), a connecting seat (5) of a block structure is fixed on the side of the fixing ring (1) away from the buckle ring (2), and a tensioning assembly (6) is fixed on the connecting seat (5), and the tensioning assembly (6) includes: a wheel seat (61), a ratchet (62), a deflection shaft (63), ratchet teeth (64), and a fixing rod (67); the number of the wheel seats (61) is two The two groups of wheel seats (61) are fixed on both sides of the connecting seat (5) by means of a fixing rod (67). The two groups of wheel seats (61) are provided with concentric shaft holes. The ratchet (62) is rotatably fitted in the shaft holes of the two groups of wheel seats (61) by means of a shaft rod. A deflection shaft (63) is rotatably fitted between the two groups of wheel seats (61). A ratchet tooth (64) is fixed on the deflection shaft (63). The ratchet tooth (64) has a tendency to deflect downward under the action of gravity, limiting the unidirectional rotation of the ratchet (62). One side of the ratchet (62) protrudes out of the wheel seat (61) and is coaxially fixedly connected to a winch (9). A cable (10) is wound around the winch (9).

2. A pear tree branch puller according to claim 1, characterized in that: The tensioning assembly (6) further comprises: a spring (65) and a spring seat (66); a hole is provided on the upper side of the ratchet teeth (64), a spring (65) is embedded and fixed in the hole, one end of the spring (65) away from the ratchet teeth (64) is fixedly connected to a spring seat (66) of a plate-like structure, and the spring seat (66) is fixed to the side surfaces of the two sets of wheel seats (61).

3. A pear tree branch puller according to claim 2, characterized in that: The side surface of the deflection shaft (63) is provided with a screwdriver slot (68) for convenient screwing.

4. A pear tree branch puller according to claim 1, characterized in that: After the end of the cable (10) is folded back, it is fixed by a clamp (11) so that a loop opening (101) is formed at the end of the cable (10).

5. The pear tree branch puller according to claim 1, characterized in that: The fixing ring (1) is fixed with a guide assembly (8) above the winch (9); the main body of the guide assembly (8) is a guide rod (81) of a rod-shaped structure; a guide cylinder (82) of a cylindrical structure is fixed to the end of the guide rod (81); the guide cylinder (82) is located just above the middle of the winch (9); and the cable (10) passes through the guide cylinder (82).

6. A pear tree branch puller according to claim 5, characterized in that: The inner hole edge of the guide cylinder (82) is chamfered to form a rounded edge (83).

7. The pear tree branch puller according to claim 1, characterized in that: The fixing ring (1) and the buckle ring (2) are each provided with a group of horizontally structured slots on one side away from the hinge seat (3) to form a slot (21). A threaded ball (12) of a spherical structure is rotatably matched with an axial rod in the slot (21) of the fixing ring (1). The threaded ball (12) is provided with a threaded hole with a horizontal axis. The locking bolt (4) is threadedly matched in the threaded hole of the threaded ball (12). The other end of the locking bolt (4) is embedded in the slot (21) of the buckle ring (2). The bolt cap of the locking bolt (4) is located on the side of the slot (21) away from the fixing ring (1); the bolt cap of the locking bolt (4) is a hand-tightening bolt cap.

8. The pear tree branch puller according to claim 1, characterized in that: The inner annular surfaces of the fixing ring (1) and the buckle ring (2) are padded with elastic foam pads (13).

9. A pear tree branch puller according to claim 2, characterized in that: The rotation of the winch (9) is achieved by a detachable rotating rod (7), which comprises an insert rod (71), a connecting rod (72), and a rotating handle (73). A non-circular hole is provided on the shaft of the ratchet (62), and the longitudinal section profile of the insert rod (71) is consistent with the longitudinal section profile of the hole. The insert rod (71) is inserted into the shaft of the ratchet (62) by means of the hole. The insert rod (71) is vertically connected to a connecting rod (72) of a rod-shaped structure. A rotating handle (73) of a round rod structure is vertically fixed to the other end of the connecting rod (72) away from the insert rod (71).

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