CN213546474U

CN213546474U - Backpack type working tool

Info

Publication number: CN213546474U
Application number: CN202022293282.2U
Authority: CN
Inventors: 魏娟; 张晨
Original assignee: Suzhou Cleva Precision Machinery and Technology Co Ltd
Current assignee: Suzhou Cleva Electric Appliance Co Ltd; Suzhou Cleva Precision Machinery and Technology Co Ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-06-25
Anticipated expiration: 2030-10-15
Also published as: WO2022077557A1

Abstract

The utility model discloses a backpack type operation tool. The work tool includes: a main body support is carried on the back; a power mechanism disposed in the backpack body bracket and configured to output mechanical energy when the work tool performs work; a power supply assembly comprising a power supply mount and a battery pack, the battery pack being fittable in the power supply mount; the power supply assembly is integrally and detachably mounted on the bearing main body support. Compared with the prior art, the back bearing main body bracket and the power supply mounting seat are formed independently, so that the processing difficulty is low; moreover, the power supply assembly has strong universality; the difficulty of the whole assembly and disassembly of the working tool is reduced, the assembly is easy, simple and convenient, and particularly during maintenance, the power supply assembly can be integrally disassembled from the bearing main body bracket, the disassembly is convenient and quick, the fault is conveniently and rapidly checked, and the efficiency is greatly improved.

Description

Backpack type working tool

Technical Field

The utility model relates to a backpack working tool belongs to working tool device technical field.

Background

The backpack type working tool is generally a working tool which is used for an operator to carry about in a backpack mode such as double shoulders, single shoulders, inclined strides and the like to carry out functional operation, and compared with a hand-carried type working tool, the carrying mode is more labor-saving, free of double hands and convenient to operate. Depending on the functional operation, the backpack type operation tools commonly available on the market include backpack type hair dryers, backpack type blowing and sucking machines, backpack type lawn mowers, backpack type spraying machines, and the like.

The battery pack of the conventional backpack type working tool is fixedly arranged in the power supply mounting seat in a detachable mode, the power supply mounting seat is usually integrally arranged on the main body support, namely the power supply mounting seat is directly formed on the main body support, and the power supply mounting seat cannot be detached from the main body support.

Due to the fact that the power supply mounting seat and the main body support are connected in an unreleasable mode, on one hand, the main body support is complex in structure, and processing difficulty is increased; on the other hand, the battery pack has poor universality among different products; on the other hand, the whole dismouting degree of difficulty of operation instrument is big, especially when overhauing the power unit in the main part support, needs to dismantle each part of battery package in alone one by one, and the operation is inconvenient, and is inefficient.

Disclosure of Invention

In order to solve at least one of the prior art problems, an object of the utility model is to provide a backpack working tool, the mount pad of its battery package can be dismantled from the main part support nondestructively.

In order to achieve the above object of the present invention, an embodiment provides a backpack type work tool, including:

a main body support is carried on the back;

a power mechanism disposed in the backpack body bracket and configured to output mechanical energy when the work tool performs work;

a power supply assembly comprising a power supply mount and a battery pack, the battery pack being fittable in the power supply mount;

the power supply assembly is integrally and detachably mounted on the bearing main body support.

As a further improvement of one embodiment of the present invention, the backpack main body bracket includes a main case covering the power mechanism and an installation body located outside the main case;

the power supply mounting seat comprises a first shell seat and a second shell seat, wherein the edge of the first shell seat is buckled with the edge of the second shell seat and is fixed outside the mounting body through a common hoop.

As a further improvement of the embodiment of the present invention, a mounting hole adapted to the mounting body is formed between an edge of the first housing base and an edge of the second housing base, and the mounting hole is surrounded by a first notch groove formed in the edge of the first housing base and a second notch groove formed in the edge of the second housing base.

As a further improvement of one embodiment of the present invention, the mounting body is provided as a hollow tube body, and an electric lead is inserted therein;

the operation tool further comprises an operation handle, the operation handle comprises an operation piece for receiving an operation instruction, one end of the electric wire is connected to the power mechanism, and the other end of the electric wire is connected to the operation piece.

As a further improvement of an embodiment of the present invention, the power supply mounting base has two side walls facing left and right, and the two side walls are respectively formed with one mounting hole and respectively correspond to the mounting bodies one by one.

As a further improvement of one embodiment of the present invention, the hole wall of the mounting hole and the outer wall of the mounting body are provided with concave-convex structures which are in snap fit with each other, and the concave-convex structures prevent the mounting body from being separated from the mounting hole outwards or penetrating into the mounting hole inwards.

As a further improvement of an embodiment of the present invention, the first housing seat and the second housing seat are relatively buckled along a first direction, and the first housing seat and the second housing seat are fastened and connected by a plurality of screws in a screwing or unscrewing manner along the first direction.

As a further improvement of an embodiment of the present invention, the power supply mounting base has a power supply mating terminal, a battery pack socket, and an assembly cavity communicating with the battery pack socket, the power supply mating terminal is exposed in the assembly cavity;

the battery pack can be inserted into the assembly cavity or taken down from the assembly cavity through the battery pack insertion port, wherein the battery pack is electrically connected with the power supply matching terminal when being matched with the power supply mounting seat, and the battery pack is separated from the power supply matching terminal when being taken down from the power supply mounting seat;

the power supply assembly further comprises a locking mechanism which is movably arranged on the power supply mounting seat and has a locking state and an unlocking state;

when the battery pack is in the locking state, the locking mechanism at least partially protrudes into the assembly cavity so as to lock the battery pack assembled in the power supply installation seat;

when the battery pack is in the unlocked state, the locking mechanism unlocks the battery pack to allow the battery pack to be taken down from the power supply mounting seat.

As a further improvement of an embodiment of the present invention, the lock mechanism includes:

the unlocking key receives unlocking operation outside the power supply mounting seat so as to change the locking mechanism from the locking state to the unlocking state;

the clamping hook is provided with a triggering end matched with the unlocking key and a clamping hook end matched with the battery pack, the clamping hook end protrudes downwards into the assembly cavity in the locking state, and the clamping hook end at least partially retracts upwards out of the assembly cavity in the unlocking state under the pushing of the unlocking key to the triggering end;

the elastic reset piece is connected between the unlocking key and one of the clamping hooks and the power supply mounting seat so as to drive the locking mechanism to reset from the unlocking state to the locking state.

As a further improvement of an embodiment of the present invention, the battery pack may be inserted into the assembly cavity through the battery pack insertion port in a first direction;

the power supply matching terminal comprises a spring terminal which is arranged opposite to the battery pack insertion port along the first direction, and when the locking mechanism is changed from the locking state to the unlocking state, the spring terminal pushes the battery pack to pop out of the battery pack insertion port.

As a further improvement of an embodiment of the present invention, the work tool is provided as a blower;

the power mechanism is a turbine fan, the rotation axis of the power mechanism extends in the front-back direction, and the bearing main body support comprises a volute for coating the turbine fan;

the power supply assembly is mounted above the top of the backpack main body bracket.

Compared with the prior art, the utility model discloses an embodiment has following beneficial effect at least: the power supply assembly is integrally and detachably arranged on the bearing main body bracket, on one hand, the bearing main body bracket and the power supply mounting seat are respectively and independently formed, and the processing difficulty is greatly reduced; on the other hand, the power supply assembly can be applied to different operation tool products, and has strong universality; on the other hand, the difficulty of the whole assembly and disassembly of the operation tool is reduced, the assembly is easy, the operation tool is simple and convenient, particularly, the power supply assembly can be integrally disassembled from the bearing main body bracket when the power mechanism of the bearing main body bracket is overhauled, the disassembly is convenient and quick, the fault can be conveniently and rapidly checked, and the efficiency is greatly improved.

Drawings

Fig. 1 is a schematic side view of a backpack-type work tool according to an embodiment of the present invention;

fig. 2 is an exploded perspective view of a backpack-type work tool according to an embodiment of the present invention;

FIG. 3 is an enlarged view of area A in FIG. 2;

fig. 4 is a schematic perspective view of a power module according to an embodiment of the present invention;

fig. 5 is an exploded perspective view of a power module according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a power module according to an embodiment of the present invention at a rear view angle;

fig. 7 is a schematic sectional view taken along line B-B in fig. 6.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. However, these examples are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art in light of these examples are intended to be within the scope of the present invention.

Referring to fig. 1-7, the present embodiment provides a backpack work tool 100, i.e., the work tool 100 is carried by an operator in a backpack manner for performing functional work when in use.

Referring to fig. 1, the work tool 100 specifically includes a harness assembly, a backpack body 3, a power supply assembly 4, an operation handle 2, and a work execution assembly 1.

The harness assembly is used for an operator to carry the carrying body 3 on the body when using the work tool 100. The harness assembly encircles the body of the operator where the main weight of the backpack body 3 is borne. For the harness assembly to be configured as a belt, which may be disposed around the waist of the operator; or may be configured as a shoulder strap disposed around the shoulder of the operator. The shoulder straps that encircle the shoulders of the operator may be configured as single shoulder straps on one side of the body, as diagonal straps that extend obliquely across the body, or as double shoulder straps on both sides of the body.

The backpack body 3 is supported on the body of the operator by the harness assembly, which is generally configured as a core body for the work tool 100 to perform its functional tasks. The backpack body 3 includes a backpack body support 31 and a power mechanism disposed in the backpack body support 31: the power mechanism may be capable of outputting mechanical energy to effect functional work of the work tool 100; the backpack body frame 31 may form part of the appearance of the work tool 100, cover the power mechanism to protect the power mechanism, and assist in forming a passage (e.g., an air duct described below) required for functional operation of the work tool 100.

The work implement assembly 1 is generally connected to the carrying body 3 and extends lengthwise forward from the carrying body 3, i.e., one end portion 12 of the work implement assembly 1 is connected to the carrying body 3, and the other end portion 11 thereof, which is disposed opposite to the end portion 12, extends forward to the front of the operator, so that the work tool 100 can perform related functional work on a work object through the end portion 11 when in use.

The operating handle 2 is usually disposed on the work implement assembly 1, and basically, the operating handle 2 can be held by an operator to facilitate various operation controls on the work implement 100 when the work implement 100 performs work, for example, the operator can adjust the position of the end portion 11 of the work implement assembly 1 through the operating handle 2 to change the end portion 11 with respect to a corresponding work object, and for example, as shown in the present embodiment, the operating handle 2 includes operating

members

21 and 22 for receiving operation commands, and the

operating members

21 and 22 can be electrically connected to a driving member (such as an igniter connected to a motor described later or a fuel engine) of the power mechanism and the power supply assembly 4 through an electrical lead (such as a mark 5 in fig. 3), so that when the

operating members

21 and 22 are touched by the operator, the

operating members

21 and 22 can receive the operation commands corresponding to the touching action, and further controlling the work tool to perform work or stop work, and controlling the operating state of the power mechanism based on the operation command.

Referring to fig. 2 and 3, the power supply assembly 4 includes a power supply mount 41 and a battery pack 42. The power supply mounting base 41 is used for fixedly mounting and supporting a battery pack 42, which constitutes a basic support frame of the power supply module 4; a battery pack 42 may be mounted in the power source mount 41 and used to provide power to the work tool 100.

As the background art provides, in the prior art, the power supply mounting seat is generally integrated with the backpack main body support, which leads to a series of problems of complex configuration of the backpack main body support, large processing difficulty, poor universality of the mounting structure of the battery pack, large difficulty in disassembling and assembling the whole backpack main body, low operation complexity, low efficiency and the like.

Therefore, in the working tool 100 of the present application, the power supply unit 4 is integrally detachably mounted on the backpack body bracket 31, that is, the power supply mounting seat 41 is separately provided from the backpack body bracket 31, so that compared with the prior art, on the one hand, the backpack body bracket 31 and the power supply mounting seat 41 are separately molded, and the processing difficulty is greatly reduced; on the other hand, the power supply assembly 4 can be applied to different work tool products, and has strong universality; on the other hand, the difficulty of the overall assembly and disassembly of the working tool 100 is reduced, the assembly is easy, the operation is simple and convenient, and particularly when the power mechanism in the bearing main body support 31 is overhauled, the power supply assembly 4 can be integrally disassembled from the bearing main body support 31, the disassembly is convenient and quick, the fault can be conveniently and rapidly checked, and the efficiency is greatly improved.

Here, the detachment in the present application refers to a non-destructive or non-violent separation between the two members (for example, the power module 4 and the backpack body holder 31), and does not include a destructive or violent separation that may cause damage to any one of the two members (for example, the power module 4 and the backpack body holder 31).

Specifically, referring to fig. 2 to 5, the backpack body bracket 31 includes a main chassis 312 covering the power mechanism and an installation body 311 located outside the main chassis 312; the power supply mounting base 41 includes a first housing base 411 and a second housing base 412, and an edge 4110 of the first housing base 411 is connected with an edge 4120 of the second housing base 412 in a snap-fit manner. In this embodiment, the first housing seat 411 and the second housing seat 412 are fastened front to back, that is, the first housing seat 411 is located in front of the second housing seat 412, and the edge 4110 of the rear end of the first housing seat 411 is fastened to the edge 4120 of the front end of the second housing seat 412; of course, in alternative embodiments, the first housing seat 411 and the second housing seat 412 can be fastened up and down or right and left or in other relative orientations.

The common hoop of the edge 4110 of the first shell seat 411 and the edge 4120 of the second shell seat 412 is fixed outside the mounting body 311, that is, the mounting body 311 is clamped between the edge 4110 of the first shell seat 411 and the edge 4120 of the second shell seat 412, and the power supply mounting seat 41 surrounds the periphery of the mounting body 311, thereby realizing the fixed mounting of the power supply mounting seat 41 on the backpack body bracket 31, further enabling the power supply component 4 to be integrally assembled on the backpack body 3 along with the power supply mounting seat 41, and the hoop mounting mode is convenient to disassemble and has a simple structure, and the universality of the power supply mounting seat 41 on different backpack bodies 3 is strong.

Further, a mounting hole 410 to which the mounting body 311 is fitted is formed between the edge 4110 of the first housing seat 411 and the edge 4120 of the second housing seat 412. Specifically, the edge 4110 of the first housing holder 411 has a first notch 4102, the edge 4120 of the second housing holder 412 has a second notch 4101, when the edge 4110 of the first housing holder 411 is engaged with the edge 4120 of the second housing holder 412, the first notch 4102 and the second notch 4101 are just opposite to each other, the mounting hole 410 is surrounded by the first notch 4102 and the second notch 4101, and the mounting body 311 is accommodated in the mounting hole 410.

In the present embodiment, the mounting hole 410 and the mounting body 311 are provided with corresponding circular shapes, but the shapes of the two are not limited thereto, and may be provided with a square shape, a hexagonal shape or any other suitable shape.

Preferably, the mounting body 311 is a hollow tube body in this embodiment, an electric wire 5 is inserted into the hollow tube body, one end of the electric wire 5 is connected to the power mechanism, and the other end of the electric wire 5 is connected to the operating handle 2, specifically to the operating

members

21 and 22 of the operating handle 2, that is, the operating

members

21 and 22 and the power mechanism can be electrically connected through the electric wire 5, so as to realize the operation state of the power mechanism controlled through the operating

members

21 and 22. In this way, the mounting body 311 is configured as a protection tube for the electrical conductor 5, and the power supply mounting base 41 is fixedly mounted on the protection tube for the electrical conductor 5, so that the protection tube is integrated and multi-purpose, and is easy and quick to assemble and highly universal. Of course, the specific arrangement of the mounting body 311 is not limited thereto, for example, in other embodiments, the mounting body 311 may not be used as a protection tube for the electrical lead 5, but configured as a rod-shaped cantilever erected outside the main chassis 312.

Further, in the present embodiment, the power supply mounting base 41 has two side walls facing left and right, and the two side walls are respectively formed with one mounting hole 410 and respectively correspond to the mounting bodies 311 one by one. That is, the sidewall of the left side of the power supply mounting base 41 is provided with a mounting hole 410, and the mounting hole 410 is matched and connected with the mounting body 311-2 as shown in the figure; the right side wall of the power supply mounting base 41 is provided with a mounting hole 410, and the mounting hole 410 is matched and connected with the mounting body 311-1 as shown in the figure.

In addition, the hole wall of the mounting hole 410 and the outer wall of the mounting body 311 are provided with concave-convex structures which are in clamping fit with each other, and the mounting body 311 is prevented from being separated from the mounting hole 410 outwards or penetrating into the mounting hole 410 inwards by the concave-convex structures, that is, the concave-convex structures are used for limiting the mounting body 311 and the mounting hole 410 in the left-right direction and preventing the mounting body 311 from moving left and right relative to the mounting hole 410, so that on one hand, the mounting body 311 is prevented from being separated from the mounting hole 410 outwards, the stability of mounting between the power supply mounting seat 41 and the mounting body 311 can be ensured, the power supply mounting seat 41 is prevented from being separated from the mounting body 311, the mounting body 311 is prevented from penetrating into the mounting hole 410 inwards, and the mounting body 311 can be prevented from accidentally penetrating into the power supply mounting seat 41 to damage important components (such as the control circuit board 43).

Preferably, the outer wall of the mounting body 311 is provided with a concave-convex structure 3110, the concave-convex structure 3110 extends around the circumference of the mounting body 311 to form an annular groove, correspondingly, the concave-convex structure of the hole wall of the mounting hole 410 is provided as an annular rib matched with the concave-convex structure 3110, and when the edge 4110 of the first housing seat 411 and the edge 4120 of the second housing seat 412 are jointly hooped and fixed outside the mounting body 311, the annular rib is just embedded into the annular groove.

Further, the first housing seat 411 and the second housing seat 412 are fastened and connected by a plurality of screws. Specifically, in the present embodiment, two screw holes 4121 are provided near both left and right ends of the upper portion of the second housing base 412, and two screw holes 4122 are provided at the lower portion of the second housing base 412; correspondingly, two threaded holes 4111 corresponding to the two threaded holes 4121 one to one are formed near the left and right ends of the upper portion of the first housing seat 411, and two threaded holes 4112 corresponding to the two threaded holes 4122 one to one are formed at the lower portion of the first housing seat 411; the two screws 91 are each screw-fitted into the screw hole 4111 and the screw hole 4121, respectively, and the two screws 92 are each screw-fitted into the screw hole 4112 and the screw hole 4122, respectively, thereby achieving a tight connection of the first housing seat 411 and the second housing seat 412.

Further preferably, the first housing seat 411 and the second housing seat 412 are relatively buckled with each other along a first direction, and correspondingly, the

screws

91 and 92 are screwed in or screwed out along the first direction to tightly connect the first housing seat 411 and the second housing seat 412, so that the position of the mounting body 311 fixed between the edge 4110 of the first housing seat 411 and the edge 4120 of the second housing seat 412 by the hoop is firmer and the hoop is tighter as the screwing amplitude of the

screws

91 and 92 is increased. As mentioned above, in the present embodiment, the first housing seat 411 and the second housing seat 412 are engaged with each other in a front-back manner, and accordingly, the

screws

91 and 92 are screwed in or out along the front-back direction, so that the mounting body 311 is tightly held by the edge 4110 of the first housing seat 411 and the edge 4120 of the second housing seat 412 from the front-back direction. Of course, in the modified embodiment, the relative orientation of the first housing seat 411 and the second housing seat 412 is changed, and the screwing directions of the

screws

91 and 92 are also changed synchronously, which will not be described again.

Further, the power supply module 4 may be supported on the backpack body bracket 31, specifically, mounted above the top of the backpack body bracket 31, thereby providing convenience in mounting and good layout.

Further, referring to fig. 4 to 7, the power supply mounting base 41 has a battery pack insertion port 4130 and a mounting cavity 413 communicating with the battery pack insertion port 4130, and the battery pack 42 can be inserted into the mounting cavity 413 or removed from the mounting cavity 413 through the battery pack insertion port 4130; the power supply mount 41 also has

power mating terminals

452, 453, and the

power mating terminals

452, 453 are exposed in the fitting cavity 413.

When the battery pack 42 is mounted on the power supply mounting seat 41, that is, when the battery pack 42 is inserted into the mounting cavity 413, the battery pack 42 is in its mounting position relative to the power supply mounting seat 41, and the battery pack 42 is in contact connection with the power

supply mating terminals

452 and 453, so that the electric energy of the battery pack 42 can be output to the power mechanism or other electric devices of the work tool 100 through the power

supply mating terminals

452 and 453; when the battery pack 42 is removed from the power source mount 41, i.e., from the mounting cavity 413, with the battery pack 42 in its removed position relative to the power source mount 41, the battery pack 42 is separated from the

power mating terminals

452, 453 such that the battery pack 42 no longer provides power to the work tool 100.

Preferably, the power supply module 4 further includes a control circuit board 43 disposed inside the power supply mounting base 41, specifically, in this embodiment, the first casing base 411 and the second casing base 412 are engaged with each other and surround an inner cavity, and the control circuit board 43 is accommodated in the cavity and fixedly assembled with both the first casing base 411 and the second casing base 412.

The power module 4 further includes a terminal bracket 451 fixed to the circuit board 43, and a power mating terminal 453 is mounted to the terminal bracket 451 and extends upward into the mounting cavity 413.

Further, the power supply module 4 further includes a locking mechanism movably mounted to the power supply mounting base 41 and having a locked state and an unlocked state. Wherein: referring to fig. 7, in the locked state, the locking mechanism at least partially protrudes into the mounting cavity 413, so as to lock the battery pack 42 mounted in the power source mounting seat 41, that is, lock the battery pack 42 in the mounting position; in the unlocked state, the locking mechanism unlocks the battery pack 42, thereby allowing the battery pack 42 to be removed from the power mount 41, that is, allowing the battery pack 42 to move from the mounting position to the dismounting position.

Specifically, the locking mechanism includes an unlocking key 441, a hook 442, and an elastic restoring member 443.

The unlocking key 441 is exposed to an upper portion of the power source mount 41, and receives an unlocking operation outside the power source mount 41 to change the locking mechanism from the locked state to the unlocked state. When the operator needs to detach the battery pack 42 from the power supply mounting seat 41, the operator can cause the locking mechanism to release the battery pack 42 by an unlocking operation of pressing the unlocking key 441 downward.

The catch 442 is provided as a single piece having a trigger end 4422 that fits into the release key 441 and a catch end 4421 that fits into the battery pack 42. Specifically, the trigger terminal 4422 is located below the unlocking key 441; the battery pack 42 has a card slot 420 on the upper surface. In the locked state, the hook end 4421 protrudes downwards into the assembly cavity 413, and at this time, if the battery pack 42 is located at the assembly position, the hook end 4421 is just inserted into the slot 420 to prevent the battery pack 42 from exiting the assembly cavity 413; in the unlocked state, the unlocking key 441 is pressed downward, and the triggering end 4422 moves downward when the unlocking key 441 pushes the triggering end 4422, and the corresponding hook end 4421 tilts upward and retracts out of the assembly cavity 413 at least partially, so that the hook end 4421 no longer locks the battery pack 42.

The elastic restoring member 443 is connected between one of the unlocking key 441 and the hook 442 and the power supply mounting base 41. In the unlocking state, the elastic restoring member 443 is forced to be elastically deformed under the unlocking operation of an operator; when the unlocking operation by the operator is cancelled, for example, when the finger is removed from the unlocking key 441, the elastic resetting member 443 elastically resets itself to actuate the locking mechanism to be reset from the unlocked state to the locked state.

In the present embodiment, the elastic restoring member 443 is a compression spring sandwiched between the trigger end 4422 of the hook 442 and the power supply mount 41, but of course, in a modified embodiment, the arrangement position of the elastic restoring member 443 is not limited thereto, and the specific type thereof is not limited to a compression spring, and may be a tension spring, a torsion spring, or another elastic body.

Further, in the present embodiment, the battery pack 42 may be inserted into the fitting cavity 413 from the rear to the front through the battery pack insertion port 4130; correspondingly, the power adapting terminal 452 includes a spring terminal disposed opposite to the battery pack insertion opening 4130 in the front-rear direction, the spring terminal is specifically disposed at the front bottom end of the assembly cavity 413, when the locking mechanism changes from the locking state to the unlocking state, that is, when the operator presses the unlocking key 441 to make the hook end 4421 upwardly and at least partially exit the assembly cavity 413, at this time, the battery pack 42 is unlocked, and the spring terminal pushes the battery pack 42 forward and backward to pop out towards the battery pack insertion opening 4130, so that the battery pack 42 can be automatically popped out after being unlocked by the one-click unlocking key 441, the battery pack 42 can be conveniently taken off from the power mounting seat 41, and the installation and removal operations of the battery pack 42 are simple and convenient.

Further, work tool 100 may be embodied as a variety of different products based on the types of functions that the power mechanism may perform. In this embodiment, referring back to fig. 1 to 2, the work tool 100 is provided as a blower whose functional work is blowing. Specifically, the power mechanism comprises a turbine fan and a driving piece for driving the turbine fan to rotate, and a rotation axis X of the turbine fan extends along the front-back direction; the main chassis 312 is at least partially configured to enclose a volute of the turbofan; the operation execution assembly 1 is constructed as an air outlet pipe extending forwards from an air outlet of the volute. When the working tool 100 is started to work, the turbine fan rotates around the rotation axis X and drives the airflow to flow forward through the air outlet pipe along the air duct surrounded by the volute until the airflow is blown out from the air blowing opening at the front end 11 of the air outlet pipe.

Of course, in a variation embodiment, the work tool 100 may also be configured as a suction fan, a blowing-sucking machine, a mower, a sprayer, etc., and correspondingly, the power mechanism and the work performing assembly 1 are correspondingly changed according to the specific configuration of the work tool 100, which is not described herein again.

In the embodiment shown in the drawings, the driving member is provided as a fuel engine, and when the work tool 100 starts work, an igniter of the fuel engine is electrically connected with the battery pack 42 so as to start, and then mechanical energy is output to drive the turbo fan to rotate around the rotation axis X; of course, the driving member of the present embodiment is not limited thereto, for example, in a modified embodiment, the driving member may be provided as an electric motor, and when the work tool 100 starts work, the electric motor is electrically connected to the battery pack 42 and obtains electric energy from the battery pack 42, and then converts the electric energy into mechanical energy and outputs the mechanical energy to drive the turbo fan to rotate around the rotation axis X.

Compared with the prior art, the embodiment has the following beneficial effects: the power supply assembly 4 is integrally and detachably mounted on the bearing main body bracket 31, on one hand, the bearing main body bracket 31 and the power supply mounting seat 41 are respectively and independently molded, and the processing difficulty is greatly reduced; on the other hand, the power supply assembly 4 can be applied to different work tool products, and has strong universality; on the other hand, the difficulty of the overall assembly and disassembly of the working tool 100 is reduced, the assembly is easy, the operation is simple and convenient, and particularly when the power mechanism in the bearing main body support 31 is overhauled, the power supply assembly 4 can be integrally disassembled from the bearing main body support 31, the disassembly is convenient and quick, the fault can be conveniently and rapidly checked, and the efficiency is greatly improved.

It should be understood that although the description is made in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art will recognize that the embodiments described herein may be combined as a whole to form other embodiments as would be understood by those skilled in the art.

The detailed description set forth above is only a specific description of the feasible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. A backpack work tool comprising:

a main body support is carried on the back;

the power supply assembly is integrally and detachably mounted on the backpack main body bracket.

2. The backpack work tool of claim 1, wherein the backpack body mount includes a main case covering the power mechanism and a mounting body located outside the main case;

3. The backpack-type work tool according to claim 2, wherein a mounting hole adapted to the mounting body is formed between an edge of the first housing base and an edge of the second housing base, and the mounting hole is surrounded by a first cutout groove formed in the edge of the first housing base and a second cutout groove formed in the edge of the second housing base.

4. The backpack-type work tool according to claim 3, wherein the mounting body is provided as a hollow tube body in which an electrical lead is inserted;

5. The backpack work tool according to claim 3, wherein the power source mounting base has two side walls opposed to each other on the left and right, each of the two side walls being formed with one of the mounting holes and corresponding to the mounting bodies one to one.

6. The backpack work tool according to claim 3, wherein the wall of the mounting hole and the outer wall of the mounting body are provided with a relief structure that snap fits into each other and by means of which the mounting body is prevented from moving outwards out of the mounting hole or from moving inwards into the mounting hole.

7. The backpack-type work tool according to claim 2, wherein the first housing base and the second housing base are relatively engaged in a first direction, and are fastened and connected to each other by a plurality of screws in a screwing manner or in a screwing manner in the first direction.

8. The backpack work tool of claim 1, wherein the power mount has a power mating terminal, a battery pack socket, and a mounting cavity in communication with the battery pack socket, the power mating terminal being exposed within the mounting cavity;

9. The backpack work tool of claim 8, wherein the locking mechanism comprises:

10. The backpack work tool of claim 1, wherein the work tool is configured as a blower;