CN111788956B

CN111788956B - Lithium electricity gardens pruner

Info

Publication number: CN111788956B
Application number: CN202010802788.3A
Authority: CN
Inventors: 徐伟璨
Original assignee: Zhejiang Ruimu Garden Machinery Co ltd
Current assignee: Zhejiang Ruimu Garden Machinery Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-09-07
Anticipated expiration: 2040-08-11
Also published as: CN111788956A

Abstract

The invention discloses a lithium battery garden pruner, which comprises a handrail and a blade assembly, wherein the upper part and the lower part of the blade assembly are respectively provided with a protection plate assembly, the protection plate assembly for covering the blade assembly is controlled by a button arranged on a lifting handrail, when the lithium battery garden pruner needs to be used, an operator can hold the lifting handrail by hands if necessary, and the button can be pressed by the action, so that the protection plate assembly can be folded and can work normally; when the novel blade assembly is not used for working or is tired and hands are removed due to long-time working, the button cannot obtain pressing force, the protection plate assembly is driven to be in an unfolded state through the internal linkage mechanism, and the blade assembly is covered, so that the damage to a human body can be prevented, and the blade assembly is well protected. The whole structure is ingenious, and corresponding states can be formed according to different use states without redundant operation.

Description

Lithium electricity gardens pruner

Technical Field

The invention relates to the field of garden tools, in particular to a lithium battery garden pruner.

Background

The lithium battery garden pruner is a motor-driven tool which converts the rotation motion into the reciprocating motion of an upper blade and a lower blade through an eccentric wheel and is used for cutting various shrubs and hedgerows, and is generally used in the garden industry and large-area shrub pruning.

The existing pruner has the following defects:

1. in the working process, because the whole volume of the pruner is large, the pruner is heavy, and needs to be held by two hands, namely, one hand holds the lifting handrail and the other hand holds the side handle. The workman can produce the wrist tired out easily at long-time continuous operation, or leads to not concentrating on account of tired up, and then easily takes off the hand, makes pruner slope fast even directly drop to the ground, and pruner's blade often still can be in high-speed reciprocating state at the in-process that drops, very easily leads to the fact the injury to the staff.

2. In order to solve the problem, a detachable protective cover is sleeved on the blade, so that the blade has a protective effect but needs to be taken down when in use.

Due to the above problems, there is a need for improvement.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the lithium battery garden pruner which can protect the blade when the pruner is in a non-starting state and can quickly cover and hide the blade when the pruner is in a hand-off state, so that the damage to a human body is avoided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a lithium battery garden pruner comprises a handrail and a blade assembly, wherein the blade assembly comprises a guide rod, an upper blade and a lower blade, the upper blade and the lower blade are mounted on the guide rod and perform reciprocating motion, the handrail provides a T-shaped handle for assisting in grabbing the pruner during work, protection plate assemblies are arranged above and below the blade assembly, each protection plate assembly comprises an upper protection plate and a lower protection plate, racks are arranged on the surfaces, opposite to the lower protection plates, of the upper protection plates, gears are meshed between the racks, the gears enable the protection plate assemblies to be unfolded or folded through positive rotation or reverse rotation, the protection plate assemblies cover the blade assembly during unfolding, and the blade assembly is exposed to normally work during folding; the gear is arranged on a rotating shaft, one end of the rotating shaft is connected to the rotating end of a rotating device, the rotating device converts linear motion into rotary motion, a first connecting rod is fixed at the linear end of the rotating device, and a first movable plug is fixed at the other end of the first connecting rod; a movable second connecting rod is arranged in the handrail, a button arranged outside the handrail is installed at the upper end of the second connecting rod, a first spring is arranged below the button, a second movable plug is fixed at the lower end of the second connecting rod, the first connecting rod and the second connecting rod are connected through a fork-shaped pipe, the first movable plug and the second movable plug are respectively arranged in the fork-shaped pipe and can move, and liquid matters are filled between the first movable plug and the second movable plug; when the pruner works, the button is pressed to push the second connecting rod to move, so that the liquid substance of the forked pipe drives the first connecting rod to move, the gear is driven to rotate, the upper protection plate and the lower protection plate are in a folded state, and pruning can be carried out at the moment; when the button cannot obtain pressing force, the first spring drives the button to return, so that the gear is driven to rotate, the upper protection plate and the lower protection plate are driven to be in an unfolded state, and the blade assembly is covered by the protection plate assembly at the moment.

In the above technical solution, further, three sets of gears and racks are arranged on each protection plate assembly, and are respectively located at two ends and the middle part. The protection plate component is arranged in such a way that a plurality of groups of gears are arranged to be matched with the racks better to drive the protection plate component to move.

In the above technical scheme, further, a protruding block is arranged on the protection plate assembly, fixed blocks are arranged at the top and the bottom of the blade of the pruner, a groove is arranged on the fixed blocks, and the groove is matched with the protruding block and is in sliding connection in the groove. The arrangement is such that the guard plate assemblies are fixed in the same vertical direction of the blade.

Among the above-mentioned technical scheme, furtherly, rotating device's straight line end is the carriage release lever, be provided with the cam on the carriage release lever, the cam embedding is in the dwang, be provided with the curve groove on the dwang, carriage release lever one end with the head rod is connected, dwang one end with the pivot is connected.

In the above technical solution, further, a bearing is disposed on the cam, and the bearing controls the bearing to roll in the curved groove. So arranged, the cam is rotated by the bearing and moves in the curved slot.

In the above technical scheme, further, both ends of the forked tube are closed, only the first connecting rod and the second connecting rod are arranged to be slidably connected in the forked tube, the middle portions of the first movable plug and the second movable plug are completely filled with water, the first movable plug and the second movable plug are respectively provided with a sealing ring, and a second spring is arranged between the first movable plug and the forked tube wall. The arrangement is such that the first movable stopper is moved by pushing the second movable stopper to drive the flow of water and, after releasing the first spring, the first movable stopper is pushed back in the initial direction by the second spring.

The invention has the beneficial effects that: the protective plate assembly used for covering the blade assembly is controlled through a button arranged on the lifting handrail, when the protective plate assembly is needed to be used, an operator can hold the lifting handrail tightly, the button can be pressed by the action, and therefore the protective plate assembly can be folded and can work normally; when the novel blade assembly is not used for working or is tired and hands are removed due to long-time working, the button cannot obtain pressing force, the protection plate assembly is driven to be in an unfolded state through the internal linkage mechanism, and the blade assembly is covered, so that the damage to a human body can be prevented, and the blade assembly is well protected. The whole structure is ingenious, and corresponding states can be formed according to different use states without redundant operation.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a perspective view of the external structure of the present invention.

Fig. 2 is a left side view of an initial state coupling structure of the protection block and the handle according to the present invention.

Fig. 3 is a left side view of the working state connecting structure of the protection block and the armrest of the invention.

Fig. 4 is a sectional view taken along line a-a of fig. 2 of the present invention.

Fig. 5 is a view showing a fixed position of the protection plate assembly of the present invention.

Fig. 6 is an enlarged view of the inner structure of the armrest of the present invention.

Fig. 7 is a perspective view showing the internal structure of the rotating device of the present invention.

Fig. 8 is a front view of the turning device of the present invention.

Fig. 9 is a sectional view taken along line B-B of fig. 8 in accordance with the present invention.

In the figure, 1, a protection plate assembly, 1a, an upper protection plate, 1b, a lower protection plate, 2, a rack, 3, a gear, 4, a forked pipe, 5, a second connecting rod, 6, an armrest, 7, a button, 8, a first spring, 12, a second movable plug, 13, a first movable plug, 14, a movable rod, 15, a rotating rod, 16, a first connecting rod, 17, a rotating shaft, 18, a cam, 19, a bearing, 20, a curve groove, 21, a protruding block, 22, a fixed block, 23, a groove, 24, a curve groove, 25, a second spring and 26, and a blade assembly.

Detailed Description

Referring to fig. 1-9, a lithium battery garden pruner comprises a handrail 6 and a blade assembly 26, wherein the blade assembly 26 comprises a guide rod, and an upper blade and a lower blade which are mounted on the guide rod and perform reciprocating motion, the handrail 6 provides a T-shaped handle for assisting in grabbing the pruner during work, a protection plate assembly 1 is arranged above and below the blade assembly 26, the protection plate assembly 1 comprises an upper protection plate 1a and a lower protection plate 1b, a rack 2 is arranged on the surface of the upper protection plate 1a opposite to the lower protection plate 1b, a gear 3 is meshed between the racks 2, the gear 3 enables the protection plate assembly 1 to be unfolded or folded through positive rotation or reverse rotation, the protection plate assembly 1 covers the blade assembly 26 during unfolding, and the blade assembly 26 is exposed to normally work during folding; the gear 3 is installed on a rotating shaft 17, one end of the rotating shaft 17 is connected to the rotating end of a rotating device, the rotating device converts linear motion into rotary motion, a first connecting rod 16 is fixed at the linear end of the rotating device, and a first movable plug 13 is fixed at the other end of the first connecting rod 16; a movable second connecting rod 5 is arranged in the armrest 6, a button 7 arranged outside the armrest is mounted at the upper end of the second connecting rod 5, a first spring 8 is arranged below the button 7, a second movable plug 12 is fixed at the lower end of the second connecting rod 5, the first connecting rod 16 and the second connecting rod 5 are connected through a forked tube 4, the first movable plug 13 and the second movable plug 12 are respectively arranged in the forked tube 4 and can move, and liquid matters are filled between the first movable plug 13 and the second movable plug 12; when the pruner works, the button 7 is pressed to push the second connecting rod 5 to move, so that the liquid substance of the forked tube 4 drives the first connecting rod 16 to move, the gear 3 is driven to rotate, the upper protection plate 1a and the lower protection plate 1b are in a folded state, and pruning work can be carried out at the moment; when the button 7 can not receive pressing force, the first spring 8 drives the button 7 to return, so as to drive the gear 3 to rotate, and drive the upper protection plate 1a and the lower protection plate 1b to be in an unfolded state, and at the moment, the blade assembly 26 is covered by the protection plate assembly 1.

The protection plate assembly 1 is composed of two L-shaped plates, namely an upper protection plate 1a and a lower protection plate 1b, and initially forms a rectangular state, and as the protection plate assembly 1 is long, in order to ensure that the position of the far end of the protection plate assembly 1 is synchronously deviated after the gear 3 rotates, three groups of gears 3 and three groups of racks 2 are arranged on the protection plate assembly 1 and are respectively positioned at two ends and the middle part of the protection plate assembly 1.

The straightway of rotating device is carriage release lever 14, be provided with cam 18 on carriage release lever 14, cam 18 imbeds in dwang 15, be provided with curve groove 20 on the

dwang

15, 14 one end of carriage release lever with head rod 16 connects, dwang 15 one end with pivot 17 is connected, wherein be provided with bearing 19 on the cam 18, guarantee on the carriage release lever 14 cam 18 can on the dwang 15 roll in the curve groove 20, curve groove 20 is for round the 15 round spiral structure of dwang.

In order to make the gear 3 can move on the rack 2 synchronously, three groups of gears 3 are arranged on the rotating shaft 17, the rotating shaft 17 fixedly connects the same gear 3 in the protection plate assembly 1 together, and one end of the rotating shaft 17 is fixed on the rotating rod 15 on the rotating device.

A first movable plug 13 and a first connecting rod 16 are arranged in the forked tube 4, the moving rod 15 in the rotating device is connected, a second movable plug 12 and a second connecting rod 5 are arranged at the other end in the forked tube 4 and are connected inside the handrail 6 in a sliding mode, the vacant part between the first movable plug 13 and the second movable plug 12 is filled with water, and sealing rings are arranged on the first movable plug 13 and the second movable plug 12 to prevent water from leaking out in the working process.

A second spring 25 is arranged between the first movable plug 13 and the inner wall of the forked tube 4, the second spring 25 is pressed to move towards one side of the wall of the forked tube 4 after the first movable plug 13 moves, at the moment, the second spring 25 contracts, and the first movable plug 13 can be pushed to move towards the initial position again after the second spring 25 is loosened.

For guaranteeing protection shield assembly 1 can realize fixedly on the blade subassembly 26 on the pruner, be provided with protruding piece 21 on protection shield assembly 1, be provided with fixed block 22 at the both ends of the blade subassembly 26 of pruner, be provided with recess 23 on the fixed block 22, recess 23 with protruding piece 21 cooperation and in sliding connection in recess 23, protruding piece 21 is in be provided with two places on protection shield assembly 1 gear 3 is in rotate the back on the rack 2, realize two protruding pieces 21 in step and be in the fixed block 22 relative slip in the recess 23.

The working process of the invention is as follows: in the initial state, referring to fig. 2, the protection plate assembly 1 always presents a Z-shaped state for two L-shaped plates on the pruner, and at this time, the blade assembly 26 can be protected. When the pruner is needed to be opened to work, the pruner is held by two hands, the button 7 is pressed in a proper position, the second connecting rod 5 is driven to drive the second movable plug 12 to move in the forked tube 4, the first movable plug 13 is extruded by water to deform the second spring 25, the first movable plug 13 is driven to move in the forked tube 4 through the transmission acting force of the water, the first connecting rod 16 pushes the moving rod 14 to one side of the rotating rod 15, at the moment, the cam 18 on the rotating rod 15 is driven to slide in the curved groove 20 under the action of the bearing 19, so that the rotating rod 15 rotates synchronously, because the rotating shaft 17 is connected with the rotating rod 15, the rotating shaft 17 drives the gear 3 to rotate synchronously, the gear 3 rotates on the rack 2 and enables the two protruding blocks 21 to slide in the groove 23 in the fixed block 22, the Z-shape of the protection plate member 1 is transformed into a rectangular shape (refer to the state of fig. 3), and at this time, the blade assembly 26 is not covered by the protection plate member 1 any more, and the pruner can be normally operated. When the pruner is carelessly taken off the hand or is not used any more, the button 7 cannot obtain the pressing driving force, at the moment, the first spring 8 and the second spring 25 drive the second connecting rod 5 and the first movable plug 13 to recover to the initial positions again due to the self elastic action, the protection plate assembly 1 instantaneously returns to the initial state (namely the state shown in fig. 2) again through the conversion of the same principle, and the protection plate assembly 1 coats the blade assembly 26 on the pruner to form protection.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention in any way, and simple modifications, equivalent changes and modifications may be made without departing from the technical scope of the present invention.

Claims

1. The utility model provides a lithium electricity gardens pruner, includes handrail (6) and blade subassembly (26), blade subassembly (26) include the guide arm and install reciprocating motion's last blade and lower blade on the guide arm, handrail (6) provide supplementary T shape handle of grabbing the pruner for the work, its characterized in that: the protection plate assembly (1) is arranged above and below the blade assembly (26), the protection plate assembly (1) comprises an upper protection plate (1 a) and a lower protection plate (1 b), racks (2) are arranged on the surface, opposite to the lower protection plate (1 b), of the upper protection plate (1 a), gears (3) are meshed between the racks (2), the protection plate assembly (1) is unfolded or folded through forward rotation or reverse rotation of the gears (3), the protection plate assembly (1) covers the blade assembly (26) during unfolding, and the blade assembly (26) is exposed to normally work during folding; the gear (3) is installed on a rotating shaft (17), one end of the rotating shaft (17) is connected to the rotating end of a rotating device, the rotating device converts linear motion into rotary motion, a first connecting rod (16) is fixed to the linear end of the rotating device, and a first movable plug (13) is fixed to the other end of the first connecting rod (16); a movable second connecting rod (5) is arranged in the handrail (6), a button (7) arranged outside the handrail (6) is mounted at the upper end of the second connecting rod (5), a first spring (8) is arranged below the button (7), a second movable plug (12) is fixed at the lower end of the second connecting rod (5), the first connecting rod (16) and the second connecting rod (5) are connected through a fork-shaped pipe (4), the first movable plug (13) and the second movable plug (12) are respectively arranged in the fork-shaped pipe (4) and can move, and liquid matters are filled between the first movable plug (13) and the second movable plug (12); when the pruner works, the button (7) is pressed to push the second connecting rod (5) to move, so that the liquid substance of the forked pipe (4) drives the first connecting rod (16) to move, the gear (3) is driven to rotate, the upper protective plate (1 a) and the lower protective plate (1 b) are in a folded state, and pruning work can be carried out at the moment; when the button (7) cannot obtain pressing force, the first spring (8) drives the button (7) to return, so that the gear (3) is driven to rotate, the upper protection plate (1 a) and the lower protection plate (1 b) are driven to be in an unfolded state, and the blade assembly (26) is covered by the protection plate assembly (1).

2. The lithium battery garden pruner of claim 1, characterized in that: the gear (3) and the rack (2) are arranged on each protection plate component (1) and are respectively positioned at two ends and the middle part.

3. The lithium battery garden pruner of claim 2, characterized in that: the pruner is characterized in that a protruding block (21) is arranged on the protection plate assembly, a fixing block (22) is arranged at the top and the bottom of a blade of the pruner, a groove (23) is arranged on the fixing block (22), and the groove (23) is matched with the protruding block (21) and is in sliding connection with the groove (23).

4. The lithium battery garden pruner of claim 1, characterized in that: rotating device's straight line end is carriage release lever (14), be provided with cam (18) on carriage release lever (14), cam (18) embedding is in dwang (15), be provided with curve groove (20) on dwang (15), carriage release lever (14) one end with head rod (16) are connected, dwang (15) one end with pivot (17) are connected.

5. The lithium battery garden pruner of claim 4, characterized in that: the cam (18) is provided with a bearing (19), and the bearing (19) controls the cam (18) to roll in the curve groove (20).

6. The lithium battery garden pruner of claim 1, characterized in that: the two ends of the forked pipe (4) are closed, only the first connecting rod (16) and the second connecting rod (5) are arranged in the forked pipe (4) in a sliding connection mode, the middle part of the first movable plug (13) and the middle part of the second movable plug (12) are completely filled with water, the first movable plug (13) and the second movable plug (12) are respectively provided with a sealing ring, a second spring (25) is arranged between the first movable plug (13) and the wall of the forked pipe (4), and the second spring (25) is used for driving the first movable plug (13) to return.