CN210671388U

CN210671388U - Telescopic tree pruner

Info

Publication number: CN210671388U
Application number: CN201921149982.5U
Authority: CN
Inventors: 黄惠星
Original assignee: Dongguan Fenghua Garden Engineering Co Ltd
Current assignee: Dongguan Fenghua Garden Engineering Co Ltd
Priority date: 2019-07-20
Filing date: 2019-07-20
Publication date: 2020-06-05
Anticipated expiration: 2029-07-20

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

Telescopic tree pruner

Technical Field

The utility model relates to a gardens clipper technical field, more specifically say, it relates to a flexible averruncator.

Background

The high branch scissors are mainly used for shaping and pruning high branches of trees. The pruning machine can be used for pruning disordered branches of trees to achieve the beautifying effect, pruning branches suffering from diseases and insect pests to achieve the disease prevention effect, and picking fruits mature at high altitude. Most high branch scissors are composed of a scissor head and a handle, wherein the handle is fixed in length and cannot stretch out and draw back.

In order to solve the problem that the rod cannot stretch, the prior art has provided a high branch shear with a telescopic rod, for example, chinese patent with patent publication No. CN202680045U, a telescopic device of the high branch shear is provided, i.e., a plurality of adjusting holes are provided on the telescopic tube, a positioning hole is provided on the supporting tube, the positioning sleeve is used to pass through the adjusting holes to be fixed with the positioning hole, and the positioning hole can be stretched when the positioning sleeve is changed to be fixed.

The above prior art solutions have the following drawbacks: the flexible regulation hole that can only be through fixed difference of pole realizes to flexible distance is the integral multiple of two regulation hole intervals, can't adjust to suitable length sometimes, and then leads to awkward problem.

SUMMERY OF THE UTILITY MODEL

To the flexible this problem of infinitely variable control that can not realize in the pole length within range of pole among the practical application, the utility model aims at providing a flexible averruncator, concrete scheme is as follows:

a pair of telescopic tree pruners comprises scissors and a rod body, wherein each scissors comprises a scissors head, a handle and a steel cable, each scissors 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 to the upper end of the rod body; the body of rod includes telescopic link and bracing piece, the telescopic link is the cavity setting with the bracing piece, the telescopic link bottom is passed the bracing piece and both slide and be connected, upper end of the support bar joint has the clamp, 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 clamp includes fixed semi-ring and rotation semi-ring, fixed semi-ring is articulated with rotation semi-ring one end, fixed semi-ring other end lateral wall fixed connection is protruding, couple and protruding lock.

Through above-mentioned technical scheme, the bracing piece is arranged in to the telescopic link downthehole, slides from top to bottom along the bracing piece inner wall, and 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, and the clamp passes through couple and protruding lock fastening, can realize the quick locking of clamp, improves work efficiency to realize the infinitely variable control of body of rod length.

Further, the handle includes fixed handle, activity handle and connection handle, fixed handle one end fixed connection in the body of rod lower extreme lateral wall and with the stationary blade be in the same one side of the body of rod, connection handle one end and the perpendicular fixed connection of fixed handle, the connection handle other end is articulated with the activity handle, the activity handle is in the same one side of the body of rod with the movable blade, the arcuation guide slot has been seted up on the pore wall is on a parallel with its axis direction in the bracing piece, the telescopic link lateral wall is on a parallel with pole axis direction fixedly connected with arcuation guide rail, the guide rail is mutually supported with the guide slot.

Through the technical scheme, the fixed handle and the fixed blade of the handle are positioned on the same side of the rod body, the movable handle and the movable blade are positioned on the same side of the rod body, a worker can conveniently operate the tree pruner, the guide groove on the supporting rod is matched with the guide rail of the telescopic rod, and therefore the telescopic rod can be prevented from rotating relative to the supporting rod when the length of the rod body is adjusted, the fixed handle and the fixed blade and the movable handle and the movable blade are rotated, and the rod body length adjusting efficiency is improved.

Furthermore, the steel cable penetrates through two ends of an inner hole of the telescopic rod and is respectively connected with the scissor head and the handle.

Through above-mentioned technical scheme, arrange the telescopic link hole in with the cable wire, can avoid the averruncator in the middle of the use, the branch can pass and lead to having the clearance between cable wire and the telescopic link, leads to the averruncator to remove the difficulty.

Further, the bracing piece is close to handle one end joint and has the winder, the winder includes winder body and spool, the groove cuboid is led to the winder for having seted up the U type, the spool both ends are rotated respectively and are connected in the groove both sides wall is led to the U type, spool one end salient in the groove lateral wall is led to the U type, the outstanding U type of spool leads to groove lateral wall portion fixedly connected with handle.

Through the technical scheme, the winder stores the steel cable through the redundant part of the handle, so that the situation that the redundant part is dragged to the ground in the moving process of the high branch scissors, the movement of a worker is inconvenient, and the worker is still tripped is avoided.

Further, the U-shaped through groove is coaxially and fixedly connected with a ratchet wheel on the winding shaft on the inner side of the winding shaft, the U-shaped through groove is fixedly connected with a pawl connecting rod on the side wall close to the ratchet wheel, the pawl connecting rod is parallel to the winding shaft and is located right above the winding shaft, 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 a tooth groove of the ratchet wheel.

Through the technical scheme, the ratchet wheel is matched with the pawl, so that the winding shaft coaxially connected with the ratchet wheel rotates in a single direction, the steel cable stored on the winding shaft cannot be reversed under the pulling of the handle, and the steel cable between the handle and the scissor head is in a tightened state.

Furthermore, a circular fixing sheet is coaxially and fixedly connected to the winding shaft on the inner side of the U-shaped through groove, and the fixing sheet is located between the side wall, away from the pawl connecting rod, of the U-shaped through groove and the ratchet wheel.

Through the technical proposal, the method has the advantages that,

furthermore, 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 side wall of the lower end of the fixed blade, and the other end of the return spring is fixedly connected to the side wall of the lower end of the movable blade.

Through the technical scheme, the movable blade resets under the action of the reset spring after the branches are sheared by the high branch shears, the shear head is opened, the movable blade does not need to be reset by a manual operating handle, and the pruning efficiency can be improved.

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

Through above-mentioned technical scheme, when the averruncator does not use, the scissors head is not equipped with the rubber protective sheath, can avoid the scissors head accidental injury human body.

Furthermore, the telescopic rod is made of an aluminum alloy material.

Through above-mentioned technical scheme, aluminum alloy density is little, and intensity is big, and the body of rod of same volume, the weight that the aluminum alloy material was made can be lighter, can alleviate the weight of averruncator.

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

1. the telescopic rod is clamped with the support rod through the clamp, so that the stepless adjustment of the rod body within the length range can be realized;

2. the length of the steel cable is greater than the sum of the lengths of the telescopic rod and the supporting rod, so that the length adjustment of the rod body cannot be influenced;

3. the match of the winder and the ratchet pawl can wind the overlong steel cable on the winding shaft in one direction, so that the steel cable between the movable handle and the movable blade is tightened.

Drawings

Fig. 1 is a schematic sectional view for showing the overall structure of the present embodiment;

FIG. 2 is an overall schematic view for showing scissors;

FIG. 3 is a schematic sectional view taken along line A-A in FIG. 1;

FIG. 4 is a schematic cross-sectional view taken along line B-B in FIG. 3;

fig. 5 is a schematic view for showing the scissors head cover of the present embodiment with a rubber protective sleeve.

The reference symbols: 1. scissors; 2. a rod body; 3. a reel; 4. a scissor head; 5. a handle; 6. a steel cord; 7. a telescopic rod; 8. a support bar; 9. clamping a hoop; 10. a guide groove; 11. a guide rail; 12. a fixed handle; 13. a movable handle; 14. a connecting handle; 15. a first hole; 16. a movable blade; 17. fixing a blade; 18. a return spring; 19. a second hole; 20. a rubber protective sleeve; 21. a reel body; 22. a spool; 23. a handle; 24. a U-shaped through groove; 25. a fixing sheet; 26. a ratchet wheel; 27. a pawl connecting rod; 28. a pawl; 29. a stepped hole; 30. a stationary half ring; 31. rotating the semi-ring; 32. a protrusion; 33. and (4) hanging hooks.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Examples

A pair of telescopic tree pruners is shown in figure 1 and comprises scissors 1, a rod body 2 and a winder 3. The scissors 1 comprise a scissors head 4, a handle 5 and a steel cable 6 (see fig. 2), and the scissors head 4 comprises a fixed blade 17 fixedly connected with the rod body 2 and a movable blade 16 hinged with the fixed blade 17. The movable blade 16 and the handle 5 are connected through the steel cable 6, the handle 5 can be tightly held to pull the steel cable 6 to drive the movable blade 16 to work, the handle 5 is fixedly connected with the lower end of the rod body 2, the rod body 2 is telescopic, thereby the pruning of branches with different heights can be suitable for the telescopic structure of the rod body 2, the length of the steel cable 6 needs to be larger than the length of the rod body 2, the steel cable 6 passes the handle 5 to wind redundant parts on the winder 3, and the winder 3 is fixedly connected with the end close to the handle 5 on the rod body 2.

As shown in fig. 3, the rod body 2 comprises a telescopic rod 7 and a supporting rod 8, the diameter of the telescopic rod 7 is smaller than that of the supporting rod 8, the telescopic rod 7 and the supporting rod 8 are both arranged in a hollow mode, and the telescopic rod 7 is arranged in the supporting rod 8 and connected with the same in a sliding mode. The clamp 9 that is used for fixed telescopic link 7 is connected to the joint in 8 upper ends of bracing piece, and shoulder hole 29 has been seted up to clamp 9, the aperture and the 7 interference fit of telescopic link of shoulder hole 29, the macropore and the 8 interference fit of bracing piece of shoulder hole 29. After the body of rod 2 was adjusted to suitable length, fixed with

telescopic link

7 and 8 joints of bracing piece through clamp 9, telescopic link 7 removed for bracing piece 8 when avoiding using, realized the infinitely variable control of the 2 lengths of the body of rod. The clamp 9 comprises a fixed half ring 30 and a rotating half ring 31, one end of the fixed half ring 30 is hinged to one end of the rotating half ring 31, the side wall of the other end of the fixed half ring 30 is fixedly connected with a protrusion 32, the side wall of the other end of the rotating half ring 31 is hinged to a hook 33, the hook 33 rotates around a hinge axis to be buckled with the protrusion 32, the hook 33 is buckled well through the protrusion 32, the clamp 9 can be buckled quickly, the telescopic rod 7 is fixed with the supporting rod 8, and therefore the length adjustment time of the rod body.

The telescopic link 7 all has aluminum alloy material to make aluminum alloy material with bracing piece 8, and aluminum alloy material density low strength is good, and 2 quality of the body of rod of equal volume are lighter, alleviate the tired sense of the long-time holding rod of staff.

As shown in fig. 3, an arc-shaped guide groove 10 is formed in the inner hole wall of the support rod 8 parallel to the rod axis direction, 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 of the telescopic rod 7 is connected with the guide groove 10 of the support rod 8 in a sliding manner. The guide rail 11 is matched with the guide groove 10, so that the telescopic rod 7 can only move along the support rod 8 and can not rotate, and the length adjusting efficiency of the rod body 2 can be improved.

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 side wall of the lower end of the supporting rod 8, one end of the connecting handle 14 is fixedly connected to the fixed handle 12, the other end of the connecting handle is hinged to the movable handle 13, a first hole 15 is formed at a position close to the hinged position of one end of the movable handle 13, and the steel cable 6 is wound on the reel 3 through the first hole 15.

As shown in fig. 1, the side walls of the upper ends of the movable blade 16 and the fixed blade 17 which are opposite to each other are provided with cutting edges, the hinged positions of the movable blade 16 and the fixed blade 17 are located at the middle positions of the length directions of the movable blade 16 and the fixed blade 17, and the movable blade 16 and the fixed blade 17 move opposite to each other to cut branches. A return spring 18 for opening the movable blade 16 and the fixed blade 17 is fixedly connected between the movable blade 16 and the fixed blade 17, one end of the return spring 18 is fixedly connected to the lower end side wall of the fixed blade 17, and the other end is fixedly connected to the lower end side wall of the movable blade 16. The movable blade 16 is provided with a second hole 19 at one end close to the return spring 18, one end of the steel cable 6 passes through the second hole 19 to be fixedly connected with the movable blade 16, and the other end passes through the first hole 15 to be wound on the winder 3. The handle 5 is held by hand, the movable handle 13 is forced to hold the movable handle 13 tightly towards the fixed handle 12, the steel cable 6 is pulled to drive the movable blade 16 to move towards the direction close to the fixed blade 17, the tree branches are cut, after the cutting is finished, the movable blade 16 moves towards the direction far away from the fixed blade 17 under the action of the return spring 18, and the cutting edge part of the scissor head 4 is opened.

After the high branch scissors are used, the rubber protective sleeve 20 (see fig. 5) is sleeved at the position of the scissor head 4, and the rubber protective sleeve 20 can prevent the cutting edge part of the high branch scissors from causing harm to people in the moving process.

As shown in fig. 1, the reel 3 includes a reel body 21, a spool 22 and a handle 23, the reel body 21 is a rectangular parallelepiped, the reel body 21 is provided with a U-shaped through groove 24, the spool 22 is rotatably connected between two side walls of the U-shaped through groove 24, and an axis of the spool 22 is perpendicular to two side walls of the U-shaped through groove 24. One end of the winding reel 22 protrudes out of the side wall of the U-shaped through groove 24, and an L-shaped handle 23 is fixedly connected to the protruding end and used for rotating the winding reel 22. The inner side of the U-shaped through groove 24 is coaxially and fixedly connected with a circular fixing piece 25 and a ratchet wheel 26 on the winding reel 22, the fixing piece 25 and the ratchet wheel 26 are parallel to the side wall of the U-shaped through groove 24, the winding reel 22 between the fixing piece 25 and the side wall of the U-shaped through groove 24 close to the fixing piece is used for winding the steel cable 6, the side wall of the U-shaped through groove 24 close to the ratchet wheel 26 is fixedly connected with a pawl connecting rod 27, the pawl connecting rod 27 is parallel to the winding reel 22, the other end of the pawl connecting rod 27 is hinged with a pawl 28, the hinged axis of the pawl 28 is parallel to the. The pawl 28 engages the teeth of the ratchet 26 to rotate the spool 22 in one direction. The pawl 28 is disengaged from the ratchet 26 splines and the spool 22 is allowed to rotate in the opposite direction.

The specific implementation manner of this embodiment:

when the high branch scissor body 2 needs to be extended for a long time, the pawl 28 is stripped from the tooth groove of the ratchet wheel 26, the clamp 9 is opened, 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, moves to a proper length, the clamp 9 is locked, the telescopic rod 7 is fixed with the support rod 8, the pawl 28 is clamped into the tooth groove of the ratchet wheel 26, the handle 23 is rotated to wind the steel cable 6 on the winding reel 22, and the steel cable 6 between the movable handle 13 and the movable blade 16 is tightened.

When the high branch shears work, the handle 5 is held by a hand, a force close to the fixed handle 12 is applied to the movable handle 13, the movable blade 16 is pulled through the steel cable 6 to trim branches, and after the branches are sheared, the movable blade 16 is restored to a cutting edge opening state under the action of the return spring 18.

When the averruncator accomodates, clamp 9 is opened, and inside telescopic link 7 moved to bracing piece 8, locked clamp 9, rotated handle 23 and twined cable wire 6 on spool 22, and rubber protective sheath 20 is sheathe in to scissors head 4.

Claims

1. A pair of telescopic tree pruners comprises scissors (1) and a rod body (2), wherein each scissors (1) comprises a scissors head (4), a handle (5) and a steel cable (6), each scissors head (4) comprises a movable blade (16) and a fixed blade (17) hinged with the movable blade (16), the steel cable (6) is connected between the movable blade (16) and the handle (5), and the fixed blade (17) is fixedly connected to the upper end of the rod body (2); it is characterized in that the rod body (2) comprises a telescopic rod (7) and a support rod (8), the telescopic rod (7) and the support rod (8) are both arranged in a hollow way, the bottom of the telescopic rod (7) penetrates through the support rod (8) and is connected with the support rod (8) in a sliding way, the upper end of the supporting rod (8) is clamped with a hoop (9), the hoop (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), the clamp (9) comprises a fixed half ring (30) and a rotating half ring (31), one end of the fixed half ring (30) is hinged with one end of the rotating half ring (31), the side wall of the other end of the fixed half ring (30) is fixedly connected with a bulge (32), the other end side wall of the rotating semi-ring (31) is hinged with a hook (33), and the hook (33) is buckled with the bulge (32).

2. The telescopic averruncator according to claim 1, wherein the handle (5) comprises 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 side wall of the lower end of the rod body (2) and is positioned on the same side of the rod body (2) as the fixed blade (17), one end of the connecting handle (14) is vertically and fixedly connected with the fixed handle (12), the other end of the connecting handle (14) is hinged to the movable handle (13), the movable handle (13) and the movable blade (16) are positioned on the same side of the rod body (2), the inner hole wall of the supporting rod (8) is parallel to the axis direction of the supporting rod, an arc-shaped guide groove (10) is formed in the inner hole wall of the supporting rod (8), the outer side wall of the telescopic rod (7) is parallel to the axis direction of the rod, and an arc-.

3. The telescopic pole shears according to claim 1, wherein the steel cable (6) passes through the telescopic rod (7) and is connected with the shear head (4) and the handle (5) through two ends of the inner hole respectively.

4. The telescopic averruncator according to claim 1, wherein the supporting rod (8) is connected with the winder (3) in a clamping manner at an end close to the handle (5), the winder (3) comprises a winder body (21) and a winding reel (22), the winder body (21) is a cuboid provided with a U-shaped through groove (24), two ends of the winding reel (22) are respectively rotatably connected to two side walls of the U-shaped through groove (24), one end of the winding reel (22) protrudes out of the side wall of the U-shaped through groove (24), and a handle (23) is fixedly connected to a side wall part of the U-shaped through groove (24) protruded out of the winding reel (22).

5. A telescopic averruncator according to claim 4, characterized in that a ratchet wheel (26) is coaxially and fixedly connected to the spool (22) inside the U-shaped through slot (24), a pawl connecting rod (27) is fixedly connected to the side wall of the U-shaped through slot (24) close to the ratchet wheel (26), the pawl connecting rod (27) is parallel to the spool (22) and located right above the spool (22), the pawl connecting rod (27) is coaxially hinged with a pawl (28), the pawl (28) is perpendicular to the pawl connecting rod (27), and the pawl (28) is engaged in the tooth groove of the ratchet wheel (26).

6. A telescopic averruncator according to claim 5, characterized in that a circular fixing plate (25) is coaxially and fixedly connected to the bobbin (22) inside the U-shaped through slot (24), said fixing plate (25) being located between the ratchet wheel (26) and the side wall of the U-shaped through slot (24) remote from the pawl connecting rod (27).

7. The telescopic tree pruner according to claim 6, wherein a return spring (18) is fixedly connected between the movable blade (16) and the fixed blade (17), one end of the return spring (18) is fixedly connected to the lower end side wall of the fixed blade (17), and the other end is fixedly connected to the lower end side wall of the movable blade (16).

8. A telescopic averruncator according to claim 1, characterized in that the scissor head (4) is sheathed with a rubber protective sleeve (20).

9. A telescopic pole shears according to claim 1, wherein said telescopic rod (7) is made of an aluminium alloy.