CN215122140U

CN215122140U - Backpack mower

Info

Publication number: CN215122140U
Application number: CN202121297474.9U
Authority: CN
Inventors: 王玉柱; 黄启南; 梁钰
Original assignee: Guangxi Jiaheng Agricultural Technology Co ltd
Current assignee: Nanning City Guangxi Wuming Jiawo Agricultural Professional Cooperative
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-12-14
Anticipated expiration: 2031-06-10

Abstract

The utility model discloses a backpack mower, which relates to the technical field of agricultural machinery and comprises a driving motor, a control rod and a blade, wherein the driving motor and the blade are respectively arranged at the rear end and the front end of the control rod; the middle part of the control rod is provided with a bearing component. The utility model has the advantages that the driving motor is arranged at the rear end of the control rod, the load of hands at the front end can be reduced while the power is improved, the blade can be flexibly and conveniently moved, an operator carries the control rod with the driving motor and the blade by the aid of the carrying assembly to carry out mowing operation, and the control rod can be easily and conveniently moved to any working place; meanwhile, the overcurrent protection device is arranged in the driving motor, so that the driving motor can be ensured to run safely, and the fault caused by the rise of current is avoided.

Description

Backpack mower

Technical Field

The utility model relates to the technical field of agricultural machinery, especially, relate to a backpack lawn mower.

Background

The existing mower is mostly floor type or backpack type, the floor type mower is suitable for large-area trimming operation, and is not flexible enough due to large volume and is not suitable for high-altitude crop trimming. The backpack mower is flexible and convenient to operate and is more suitable for maintenance management of orchards and tea gardens in hilly land types. However, most of the existing backpack type mowers are powered by gasoline or diesel oil, and are mostly driven by front-mounted power, so that the technical problems of small torsion and insufficient power exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to above-mentioned prior art not enough, provide a backpack lawn mower, adopt the electricity to start, and through the power postposition, improve the drive power and the moment of torsion of lawn mower greatly.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is:

a backpack mower comprises a driving motor, a control rod and a blade, wherein the driving motor and the blade are respectively arranged at the rear end and the front end of the control rod, a transmission mechanism for driving the blade is arranged inside the control rod, and the driving motor is provided with an overcurrent protection device; the middle part of the control rod is provided with a bearing component.

Preferably, the rear end of the control rod is provided with a controller electrically connected with the driving motor, and the overcurrent protection device is connected with the controller.

Preferably, the overcurrent protection device comprises a magnetic block and a hall element, the magnetic block is arranged on the surface of the output shaft of the driving motor, and the hall element is arranged beside the output shaft and can correspond to the magnetic block; the Hall element is electrically connected with the controller.

Preferably, the rear end of the control rod is provided with a handle, and the handle is provided with a control switch.

Preferably, the transmission mechanism comprises a coupler, a driving shaft and a gear box, and the gear box and the coupler are respectively arranged at the front end and the rear end of the driving shaft; the output shaft of the driving motor is connected with the driving shaft through a coupler, the driving shaft is arranged in the control rod, and the driving shaft drives the blade to rotate through a gear set in the gear box.

Preferably, the gear set comprises a driving bevel gear and a driven bevel gear, the driving bevel gear is fixed at the tail end of the driving shaft, the driven bevel gear is meshed with the driving bevel gear, and the blade is coaxially fixed with the driven bevel gear.

Preferably, a baffle is arranged at the front part of the control rod, the baffle is arranged behind the blade, and the blade is a plastic steel blade.

Preferably, the shoulder bearing component comprises a shoulder strap and a hook for fixing the shoulder strap, the hook is arranged on the control rod, and the shoulder strap is connected with the hook.

Preferably, the middle part of the control rod is provided with a quick joint.

Preferably, the tool kit, the charger and the storage battery are further included, the charger is used for charging the storage battery, and the driving motor can be connected with the storage battery through a power line.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: compared with the prior art, the utility model has the advantages that the driving motor is arranged at the rear end of the control rod, the weight of the front end and the weight of hands can be reduced while the power is improved, the blades can be flexibly and conveniently moved, an operator can carry the control rod with the driving motor and the blades by the carrying assembly to carry out mowing operation, and the control rod can be easily and conveniently moved to any working place; meanwhile, the overcurrent protection device is arranged in the driving motor, so that the driving motor can be ensured to run safely, and the fault caused by the rise of current is avoided.

Drawings

FIG. 1 is a schematic structural view of a backpack mower according to an embodiment of the present invention;

fig. 2 is a schematic view of a transmission mechanism in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an overcurrent protection apparatus according to an embodiment of the present invention;

in the figure: 1-driving motor, 2-control rod, 3-blade, 4-controller, 5-magnetic block, 6-Hall element, 7-output shaft, 8-handle, 9-coupler, 10-driving shaft, 11-gear box, 12-driving bevel gear, 13-driven bevel gear, 14-baffle, 15-shoulder belt, 16-hook and 17-quick-connection joint.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, the utility model provides a backpack mower, including driving motor 1, control lever 2 and blade 3, driving motor 1 and blade 3 set up in rear end and front end of control lever 2 respectively, and driving motor sets up in the rear end of control lever, when improving power, also can lighten the anterior weight of control lever, make things convenient for handheld control lever to carry on the operation of mowing flexibly and conveniently; a transmission mechanism for driving the blade 3 is arranged in the control rod 2, and the driving motor 1 is provided with an overcurrent protection device, so that the driving motor can be protected, and the occurrence of faults caused by the rise of current is avoided; the middle part of the control rod 2 is provided with a bearing component, so that the bearing operation is convenient.

As a preferable structure, the rear end of the control rod 2 is provided with a controller 4 electrically connected with the driving motor 1, and the overcurrent protection device is connected with the controller 4. Meanwhile, a handle 8 is arranged at the rear end of the control rod 2, and a control switch is arranged on the handle 8, so that the start and stop of the driving motor 1 can be conveniently controlled. The control switch can be electrically connected with the controller, so that the rotating speed of the driving motor and the blade can be conveniently and flexibly controlled.

In a specific embodiment of the present invention, as shown in fig. 3, the overcurrent protection device includes a magnetic block 5 and a hall element 6, the magnetic block 5 is disposed on the surface of the output shaft 7 of the driving motor 1, and the hall element 6 is disposed beside the output shaft 7 and can correspond to the magnetic block 5; the hall element 6 is electrically connected to the controller 4. When the driving motor rotates, the magnetic block can output a pulse signal through the Hall element when corresponding to the Hall element, and if the pulse signal is accumulated in unit time and does not reach a rotation speed standard value preset by the controller, the controller can send an instruction of stopping operation to the driving motor so as to protect the driving motor from generating faults due to current rise.

In a specific embodiment of the present invention, as shown in fig. 2, the transmission mechanism includes a coupling 9, a driving shaft 10 and a gear box 11, and the gear box 11 and the coupling 9 are respectively disposed at the front end and the rear end of the driving shaft 10; the output shaft 7 of the driving motor 1 is connected with a driving shaft 10 through a coupling 9, the driving shaft 10 is arranged in the control rod 2, and the driving shaft 10 drives the blade 3 to rotate through a gear set in a gear box 11. In this embodiment, the gear set includes a driving bevel gear 12 and a driven bevel gear 13, the driving bevel gear 12 is fixed to the end of the driving shaft 10, the driven bevel gear 13 is engaged with the driving bevel gear 12, and the blade 3 is coaxially fixed to the driven bevel gear 13. The driving motor drives the driving shaft to rotate through the coupler, the driving shaft drives the blades to rotate through the gear box, and power is transmitted to the tail end blades through bevel gear transmission. The bevel gear transmission has the advantage of compact structure, can concentrate the driving bevel gear and the driven bevel gear in the gear box, is integrated on the control rod, and has small volume and convenient carrying.

Further optimizing the technical scheme, as shown in fig. 1, a baffle 14 is arranged at the front part of the control rod 2, the baffle 14 is arranged at the rear part of the blade 3, the blade 3 is a plastic steel blade, and the shape and specification of the blade can be selected according to actual requirements. The grass chopper can collect the chopped grass to the position of the baffle plate by means of the baffle plate, so that the chopped grass is prevented from splashing everywhere during mowing operation, and the grass chopper is convenient to collect.

In an embodiment of the present invention, as shown in fig. 1, the backpack assembly includes a shoulder strap 15 and a hook 16 for fixing the shoulder strap, the hook 16 is disposed on the control rod 2, and the shoulder strap 15 is connected to the hook 16. The shoulder straps can be folded and stored, can be unfolded and hung on the body when in use, and can be folded together when not in use, so that the shoulder straps are ensured to be tidy and not messy.

For convenience of carrying, the control rod and the driving shaft can be designed into a split structure, and the middle part of the control rod 2 is provided with a quick joint 17. The middle parts of the driving shafts are connected through a coupling, and the middle parts of the control rods are connected through quick joints. The quick-connection joints can be purchased from the market according to actual needs and are fixedly connected one by one when in use; when not in use, the utility model can be disassembled and stored, and the use is flexible and convenient.

In order to conveniently carry and supplement power, the portable power tool further comprises a tool bag, a charger and a storage battery, wherein the charger is used for charging the storage battery, and the driving motor can be connected with the storage battery through a power line. Wherein, the battery adopts the lithium cell of environmental protection and energy saving, ensures that operating personnel work safety, comfortable.

In summary, the utility model has the advantages of simple and compact structure, large power and flexible and convenient use, the weight of the front part is reduced by arranging the driving motor on the control rod, the control rod is carried by the shoulder strap, the control rod can be easily and conveniently held by hand, and the front end blade is controlled to cut grass; meanwhile, the safety factor of the driving motor can be improved by means of the overcurrent protection device, and the driving motor is safer and more reliable in use.

The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a backpack lawn mower which characterized in that: the device comprises a driving motor, a control rod and a blade, wherein the driving motor and the blade are respectively arranged at the rear end and the front end of the control rod, a transmission mechanism for driving the blade is arranged in the control rod, and the driving motor is provided with an overcurrent protection device; the middle part of the control rod is provided with a bearing component.

2. The backpack lawnmower of claim 1, wherein: the rear end of the control rod is provided with a controller electrically connected with the driving motor, and the overcurrent protection device is connected with the controller.

3. The backpack lawnmower of claim 2, wherein: the overcurrent protection device comprises a magnetic block and a Hall element, the magnetic block is arranged on the surface of an output shaft of the driving motor, and the Hall element is arranged beside the output shaft and can correspond to the magnetic block; the Hall element is electrically connected with the controller.

4. The backpack lawnmower of claim 1, wherein: the rear end of the control rod is provided with a handle, and the handle is provided with a control switch.

5. The backpack lawnmower of claim 1, wherein: the transmission mechanism comprises a coupler, a driving shaft and a gear box, and the gear box and the coupler are respectively arranged at the front end and the rear end of the driving shaft; the output shaft of the driving motor is connected with the driving shaft through a coupler, the driving shaft is arranged in the control rod, and the driving shaft drives the blade to rotate through a gear set in the gear box.

6. The backpack lawnmower of claim 5, wherein: the gear set comprises a driving bevel gear and a driven bevel gear, the driving bevel gear is fixed at the tail end of the driving shaft, the driven bevel gear is meshed with the driving bevel gear, and the blade is coaxially fixed with the driven bevel gear.

7. The backpack lawnmower of claim 1, wherein: the front part of the control rod is provided with a baffle plate which is arranged behind the blade, and the blade is a plastic steel blade.

8. The backpack lawnmower of claim 1, wherein: the backpack assembly comprises a shoulder strap and a hook for fixing the shoulder strap, the hook is arranged on the control rod, and the shoulder strap is connected with the hook.

9. The backpack lawnmower of claim 1, wherein: and the middle part of the control rod is provided with a quick connector.

10. The backpack lawnmower of any one of claims 1-9, wherein: the tool kit comprises a tool kit body, a charger and a storage battery, wherein the charger is used for charging the storage battery, and the driving motor can be connected with the storage battery through a power line.