CN210671388U - A telescopic high branch shears - Google Patents

Abstract

The utility model discloses a telescopic tree pruner, which relates to the technical field of garden gardening pruning tools and is technically characterized in that the telescopic tree pruner comprises a scissor and a rod body, the scissor comprises a scissor head, a handle and a steel cable, the scissor head comprises a movable blade and a fixed blade hinged with the movable blade, the steel cable is connected between the movable blade and the handle, and the fixed blade is fixedly connected with the upper end of the rod body; the body of rod includes telescopic link and bracing piece, and the telescopic link is the cavity setting with the bracing piece, and the telescopic link bottom passes the bracing piece and both slide and connect, and bracing piece upper end joint has the clamp, and the shoulder hole has been seted up to the clamp, the aperture and the telescopic link interference fit of shoulder hole, the macropore and the bracing piece interference fit of shoulder hole. The telescopic link slides from top to bottom along the bracing piece inner wall, the aperture and the telescopic link interference fit of clamp shoulder hole, the macropore and the bracing piece interference fit of shoulder hole, the clamp is firm fixes the telescopic link in the upper end of bracing piece, realizes the infinitely variable control of body of rod length.

Description

A telescopic high branch shears

technical field

The utility model relates to the technical field of gardening pruning tools, in particular to a telescopic high branch shear.

Background technique

Tall branch shears are mainly used for shaping and pruning the high branches of trees. Pruning the messy branches of trees can play a beautifying effect, pruning the branches suffering from diseases and insect pests can play a role in disease prevention, and can also pick fruits that ripen at high altitude. Most tall branch shears consist of a scissors head and a handle, which is fixed in length and cannot be retracted.

In order to solve the problem that the rod can not be expanded, there is a kind of high branch shear with retractable rod in the prior art. A plurality of adjustment holes are provided, and the support pipe is provided with a positioning hole, and the positioning sleeve is used to pass through the adjustment hole and the positioning hole to achieve fixing, and the positioning hole can realize expansion and contraction when changing and fixing.

The above-mentioned prior art solutions have the following defects: the expansion and contraction of the rod can only be achieved by fixing different adjustment holes, so that the expansion and contraction distance is only an integer multiple of the distance between the two adjustment holes, and sometimes it cannot be adjusted to an appropriate length, thereby causing inconvenient use. question.

Utility model content

Aiming at the problem that the expansion and contraction of the pole cannot realize stepless adjustment within the range of the pole length in practical use, the purpose of this utility model is to propose a telescopic high branch shear. The specific scheme is as follows:

A telescopic high-branch shears, including scissors and a rod body, the scissors include a scissors head, a handle and a steel cable, the scissors head includes a movable blade and a fixed blade hinged with the movable blade, and a steel blade is connected between the movable blade and the handle. The fixed blade is fixedly connected to the upper end of the rod body; the rod body includes a telescopic rod and a support rod, the telescopic rod and the support rod are both hollow, the bottom of the telescopic rod passes through the support rod and the two are slidably connected, The upper end of the support rod is clamped with a clamp, the clamp is provided with a stepped hole, the small hole of the stepped hole is in interference fit with the telescopic rod, and the large hole of the stepped hole is in interference fit with the support rod. The clamp includes a fixed half ring and a rotating half ring, one end of the fixed half ring and the rotating half ring is hinged, the other end side wall of the fixed half ring is fixedly connected to a protrusion, and the hook is fastened with the protrusion.

Through the above technical solution, the telescopic rod is placed in the support rod hole and slides up and down along the inner wall of the support rod. The telescopic rod is firmly fixed on the upper end of the support rod, and the clamp is fastened by the hook and the protrusion, which can realize the rapid locking of the clamp, improve the work efficiency, and realize the stepless adjustment of the length of the rod body.

Further, the handle includes a fixed handle, a movable handle and a connecting handle, one end of the fixed handle is fixedly connected to the side wall of the lower end of the rod body and is on the same side of the rod body as the fixed blade, and one end of the connecting handle is vertically and fixedly connected to the fixed handle, The other end of the connecting handle is hinged with the movable handle, the movable handle and the movable blade are on the same side of the rod body, the inner hole wall of the support rod is provided with an arc-shaped guide groove parallel to its axis direction, and the outer side wall of the telescopic rod is parallel to the axis. An arc-shaped guide rail is fixedly connected in the axial direction of the rod, and the guide rail and the guide groove cooperate with each other.

Through the above technical solution, the fixed handle of the handle and the fixed blade are located on the same side of the rod body, and the movable handle and the movable blade are located on the same side of the rod body, which is convenient for the staff to operate the high branch shears. When adjusting the length of the rod body, it is avoided that the telescopic rod rotates relative to the support rod, thereby causing the positions of the fixed handle and the fixed blade and the position of the movable handle and the movable blade to rotate, thereby improving the efficiency of adjusting the length of the rod body.

Further, both ends of the steel cable pass through the inner hole of the telescopic rod and are respectively connected with the scissors head and the handle.

Through the above technical solution, placing the wire rope in the inner hole of the telescopic rod can prevent the branches from passing through during the use of the high branch shears, resulting in a gap between the wire rope and the telescopic rod, making it difficult for the high branch shears to move.

Further, a wire reel is clamped at one end of the support rod close to the handle, and the wire reel includes a wire reel body and a wire reel. The ends are respectively rotatably connected to the two side walls of the U-shaped through slot, one end of the reel protrudes from the side wall of the U-shaped through slot, and the part of the reel protruding from the side wall of the U-shaped through slot is fixedly connected with a handle.

Through the above technical solution, the wire reel stores the excess part of the wire rope through the handle, so as to avoid dragging the excess part to the ground during the movement of the high branch shears, causing inconvenient movement of the staff and the danger of tripping the staff.

Further, a ratchet wheel is fixed coaxially on the reel on the inner side of the U-shaped through groove, and a pawl connecting rod is fixedly connected to the side wall of the U-shaped through groove close to the ratchet wheel, and the pawl connecting rod is parallel to the spool. The reel is located just above the reel, the pawl connecting rod is coaxially hinged with a pawl, the pawl is perpendicular to the pawl connecting rod, and the pawl is clamped into the tooth slot of the ratchet wheel.

Through the above technical solution, the cooperation of the ratchet and the pawl makes the spool coaxially connected with the ratchet rotate in one direction, so that the wire rope stored on the spool will not be reversed under the pulling of the handle, so that the handle and the scissors head The cables between them are taut.

Further, a circular fixing piece is coaxially and fixedly connected to the reel on the inner side of the U-shaped through slot, and the fixing piece is located between the side wall of the U-shaped through slot away from the ratchet connecting rod and the ratchet wheel.

Through the above technical solutions,

Further, a return spring is fixedly connected between the movable blade and the fixed blade, one end of the return spring is fixedly connected to the lower end sidewall of the fixed blade, and the other side is fixedly connected to the lower end sidewall of the movable blade.

Through the above technical solution, after the high branch shears cut the branches, under the action of the reset spring, the moving blade is reset, the scissors head is opened, and the moving blade is not reset by manipulating the handle, which can improve the pruning efficiency.

Further, the head of the scissors is provided with a rubber protective cover.

Through the above technical solution, when the high branch shears are not in use, the scissors head is not covered with a rubber protective cover, which can prevent the scissors head from accidentally hurting the human body.

Further, the telescopic rod is made of aluminum alloy material.

Through the above technical solution, the aluminum alloy has low density and high strength, and the rod body of the same volume, made of aluminum alloy material, will be lighter in weight, which can reduce the weight of the high branch shears.

Compared with the prior art, the beneficial effects of the present utility model are as follows:

1. The telescopic rod and the support rod are connected by a clamp, which can realize the stepless adjustment of the rod body within the length range;

2. The length of the steel cable is greater than the sum of the length of the telescopic rod and the support rod, so it will not affect the adjustment of the length of the rod body;

3. The cooperation of the reel and the ratchet pawl can wind the too long wire on the reel in one direction, so that the wire between the movable handle and the movable blade is taut.

Description of drawings

1 is a schematic cross-sectional view for showing the overall structure of the present embodiment;

Fig. 2 is the overall schematic diagram for showing scissors;

Fig. 3 is A-A sectional schematic diagram in Fig. 1;

Fig. 4 is B-B sectional schematic diagram in Fig. 3;

FIG. 5 is a schematic diagram for showing that the scissors head is covered with a rubber protective cover in this embodiment.

Reference signs: 1, scissors; 2, rod body; 3, reel; 4, scissors head; 5, handle; 6, steel cable; 7, telescopic rod; 8, support rod; 9, clamp; 10, guide Slot; 11, guide rail; 12, fixed handle; 13, movable handle; 14, connecting handle; 15, first hole; 16, movable blade; 17, fixed blade; 18, return spring; 19, second hole; 20, Rubber protective cover; 21, reel body; 22, reel; 23, handle; 24, U-shaped through groove; 25, fixing plate; 26, ratchet; 27, pawl connecting rod; 28, pawl; 29, Step hole; 30. Fixed half-ring; 31. Rotating half-ring; 32. Protrusion; 33. Hook.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

Example

A kind of telescopic high branch shears, as shown in FIG. 1 , includes scissors 1 , a rod body 2 and a wire reel 3 . The scissors 1 includes a scissors head 4 , a handle 5 and a steel cable 6 (see FIG. 2 ). The movable blade 16 and the handle 5 are connected by a wire rope 6, and the handle 5 can be pulled tightly to drive the movable blade 16 to work. In order to adapt to the expansion and contraction of the rod body 2, the length of the wire rope 6 needs to be greater than the length of the rod body 2. The wire rope 6 passes through the handle 5 and wraps the excess part on the wire reel 3, and the wire reel 3 is fixedly connected to the rod body 2 and close to the handle. 5 one end.

As shown in FIG. 3 , the rod body 2 includes a telescopic rod 7 and a support rod 8 . The diameter of the telescopic rod 7 is smaller than the diameter of the support rod 8 . The interiors of the telescopic rod 7 and the support rod 8 are both hollow, and the telescopic rod 7 is placed in the support rod 8 And the two are slidingly connected. The upper end of the support rod 8 is clamped with a clamp 9 for fixing the telescopic rod 7, the clamp 9 is provided with a stepped hole 29, the small hole of the stepped hole 29 is in an interference fit with the telescopic rod 7, and the large hole of the stepped hole 29 is connected with the support rod 8. interference fit. After the rod body 2 is adjusted to an appropriate length, the telescopic rod 7 and the support rod 8 are clamped and fixed by the clamp 9 to prevent the telescopic rod 7 from moving relative to the support rod 8 during use, and realize the stepless adjustment of the length of the rod body 2 . The clamp 9 includes a fixed half-ring 30 and a rotating half-ring 31, one end of the fixed half-ring 30 and the rotating half-ring 31 is hinged, the other end side wall of the fixed half ring 30 is fixedly connected with a protrusion 32, and the other end side wall of the rotating half ring 31 is hinged There is a hook 33, the hook 33 rotates around the hinge axis and is fastened with the protrusion 32, and the hook 33 is fastened by the protrusion 32, the clamp 9 can be fastened fast, and the telescopic rod 7 and the support rod 8 are fixed, thereby shortening the rod body 2 length adjustment time.

The telescopic rod 7 and the support rod 8 are made of aluminum alloy material.

As shown in FIG. 3 , the inner hole wall of the support rod 8 is provided with an arc-shaped guide groove 10 parallel to the rod axis direction. The outer side wall of the telescopic rod 7 is fixedly connected with an arc-shaped guide rail 11 parallel to the rod axis direction. The guide rail 11 of the telescopic rod 7 is connected to the support rod. 8 of the guide groove 10 slip connection. The guide rail 11 cooperates with the guide groove 10 so that the telescopic rod 7 can only move along the support rod 8 but cannot rotate, which can improve the length adjustment efficiency of the rod body 2 .

As shown in FIG. 1, the handle 5 includes a fixed handle 12, a movable handle 13 and a connecting handle 14. One end of the fixed handle 12 is fixedly connected to the lower end side wall of the support rod 8, one end of the connecting handle 14 is vertically fixedly connected to the fixed handle 12, and the other end is The movable handle 13 is hinged, and one end of the movable handle 13 is provided with a first hole 15 near the hinged position, and the wire rope 6 is wound on the reel 3 through the first hole 15 .

As shown in Figure 1, the side walls of the movable blade 16 and the upper end of the fixed blade 17 facing each other are machined with cutting edges, the hinged position of the movable blade 16 and the fixed blade 17 is located in the middle position of their respective length directions, and the movable blade 16 and the fixed blade 17 move toward each other, Branches can be cut. A return spring 18 is fixedly connected between the movable blade 16 and the fixed blade 17 to open the two. One end of the movable blade 16 close to the return spring 18 is provided with a second hole 19 . Hold the handle 5 by hand, exert force on the movable handle 13, hold the movable handle 13 in the direction of the fixed handle 12, pull the wire 6 to drive the movable blade 16 to move in the direction close to the fixed blade 17, and cut the branches. After completion, the movable blade 16 moves away from the fixed blade 17 under the action of the return spring 18, and the cutting edge of the scissors head 4 opens.

After the high branch shears are used, the 4 parts of the scissors head are covered with a rubber protective cover 20 (see Figure 5).

As shown in FIG. 1, the cord reel 3 includes a cord reel body 21, a cord reel 22 and a handle 23. The cord reel body 21 is a cuboid, the cord reel body 21 is provided with a U-shaped through slot 24, and the cord reel 22 is rotatably connected Between the two side walls of the U-shaped through slot 24 , the axis of the reel 22 is perpendicular to the two side walls of the U-shaped through slot 24 . One end of the reel 22 protrudes from the side wall of the U-shaped through groove 24 , and the protruding end is fixedly connected with an L-shaped handle 23 , and the handle is used to rotate the reel 22 for rotation. A circular fixing piece 25 and a ratchet 26 are coaxially and fixedly connected to the reel 22 inside the U-shaped through slot 24. The fixing piece 25 and the ratchet 26 are both parallel to the side wall of the U-shaped through slot 24, and the fixing piece 25 is adjacent to the U-shaped through slot 24. The spool 22 between the side walls of the groove 24 is used for winding the wire rope 6. The side wall of the U-shaped through groove 24 close to the ratchet wheel 26 is fixedly connected to the pawl connecting rod 27, and the pawl connecting rod 27 is parallel to the spool 22. The other end of the connecting rod 27 is hinged with a pawl 28 , the hinge axis of the pawl 28 is parallel to the axis of the reel 22 , and the pawl 28 can rotate around the pawl connecting rod 27 . The pawl 28 engages in the tooth slot of the ratchet wheel 26 to make the spool 22 rotate in one direction. The pawl 28 is released from the tooth slot of the ratchet wheel 26 so that the spool 22 can rotate in the opposite direction.

The specific implementation of this embodiment:

When the high branch shearing rod body 2 needs to extend the rod length, the pawl 28 is peeled off from the tooth groove of the ratchet wheel 26, the clamp 9 is opened, and the telescopic rod 7 moves along the guide groove 10 of the inner hole wall of the support rod 8 through the guide rail 11 on the outer wall. To a suitable length, the clamp 9 is locked, the telescopic rod 7 is fixed with the support rod 8, the pawl 28 is caught in the tooth slot of the ratchet 26, the handle 23 is turned to wind the wire 6 on the reel 22, and the movable handle 13 is connected to the spool 22. The cable 6 between the movable blades 16 is taut.

When the high branch shears work, hold the handle 5, apply a force close to the fixed handle 12 to the movable handle 13, and pull the moving blade 16 through the wire rope 6 to prune the branches. After the branches are cut, the moving blade 16 is under the action of the return spring 18. , to return to the open edge state.

When the high branch scissors are stored, the clamp 9 is opened, the telescopic rod 7 is moved to the inside of the support rod 8, the clamp 9 is locked, the handle 23 is turned to wrap the wire rope 6 on the reel 22, and the scissors head 4 is covered with a rubber protective sleeve 20 .

Claims (9)

1. A telescopic high branch shear, comprising scissors (1) and a rod body (2), the scissors (1) comprising a scissors head (4), a handle (5) and a wire rope (6), the scissors head (4) It comprises a movable blade (16) and a fixed blade (17) hinged with the movable blade (16), a steel cable (6) is connected between the movable blade (16) and the handle (5), and the fixed blade (17) It is fixedly connected to the upper end of the rod body (2); it is characterized in that the rod body (2) includes a telescopic rod (7) and a support rod (8), and the telescopic rod (7) and the support rod (8) are both hollow and set. The bottom of the telescopic rod (7) passes through the support rod (8) and the two are slidably connected. The upper end of the support rod (8) is clamped with a clamp (9), and the clamp (9) is provided with a stepped hole. (29), the small hole of the stepped hole (29) is in interference fit with the telescopic rod (7), the large hole of the stepped hole (29) is in interference fit with the support rod (8), and the clamp (9) ) includes a fixed half-ring (30) and a rotating half-ring (31), one end of the fixed half-ring (30) and the rotating half-ring (31) is hinged, and the other end side wall of the fixed half-ring (30) is fixedly connected to a protrusion (32), a hook (33) is hinged on the other end side wall of the rotating half-ring (31), and the hook (33) is engaged with the protrusion (32). 2 . The telescopic high branch shears according to claim 1 , wherein the handle ( 5 ) comprises a fixed handle ( 12 ), a movable handle ( 13 ) and a connecting handle ( 14 ), and the fixed handle ( 12 ) ) is fixedly connected to the lower end side wall of the rod body (2) and is on the same side of the rod body (2) as the fixed blade (17), and one end of the connecting handle (14) is vertically and fixedly connected to the fixing handle (12). (14) The other end is hinged with the movable handle (13), the movable handle (13) and the movable blade (16) are on the same side of the rod body (2), and the inner hole wall of the support rod (8) is parallel to its axis direction An arc-shaped guide groove (10) is opened, and an arc-shaped guide rail (11) is fixedly connected to the outer side wall of the telescopic rod (7) parallel to the rod axis direction, and the guide rail (11) cooperates with the guide groove (10). 3 . The telescopic high branch shears according to claim 1 , wherein the steel cable ( 6 ) passes through the inner hole of the telescopic rod ( 7 ) and is connected to the scissors head ( 4 ) and the handle ( 5 ) respectively. . 4. A telescopic high branch shear according to claim 1, characterized in that a wire reel (3) is clamped at one end of the support rod (8) close to the handle (5), and the wire reel (3) It includes a reel body (21) and a reel (22), the reel body (21) is a rectangular parallelepiped with a U-shaped through groove (24), and both ends of the reel (22) are rotatably connected to the U The two side walls of the through slot (24), one end of the reel (22) protrudes from the side wall of the U-shaped through slot (24), and the reel (22) protrudes from the side wall of the U-shaped through slot (24) for fixed connection With handle (23). 5. The telescopic high branch shears according to claim 4, characterized in that a ratchet (26) is fixed coaxially and fixedly connected to the winding shaft (22) inside the U-shaped through groove (24). A pawl connecting rod (27) is fixedly connected to the side wall of the groove (24) close to the ratchet wheel (26), and the pawl connecting rod (27) is parallel to the reel (22) and located on the reel (22) located in the reel. (22) Right above, the ratchet connecting rod (27) is coaxially hinged with a ratchet (28), the ratchet (28) is perpendicular to the ratchet connecting rod (27), and the ratchet (28) is locked. into the slot of the ratchet (26). 6 . The telescopic high branch shears according to claim 5 , wherein a circular fixing piece ( 25 ) is coaxially fixedly connected to the bobbin ( 22 ) inside the U-shaped through groove ( 24 ). The fixing piece (25) is located between the side wall where the U-shaped through groove (24) is away from the pawl connecting rod (27) and the ratchet wheel (26). 7 . The telescopic high branch shears according to claim 6 , wherein a return spring ( 18 ) is fixedly connected between the movable blade ( 16 ) and the fixed blade ( 17 ), and the return spring ( 18 ) One end is fixedly connected to the lower end sidewall of the stationary blade (17), and the other end is fixedly connected to the lower end sidewall of the movable blade (16). 8 . The telescopic high branch shears according to claim 1 , wherein the scissors head ( 4 ) is covered with a rubber protective cover ( 20 ). 9 . 9 . The telescopic high branch shears according to claim 1 , wherein the telescopic rod ( 7 ) is made of an aluminum alloy material. 10 .

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