CN219854411U - Reciprocating swing type electric tool - Google Patents

Abstract

The utility model discloses a reciprocating swing type electric tool, which belongs to the technical field of electric tools and comprises a working assembly, wherein the working assembly is provided with a motor, a working head, a clamping structure for clamping or loosening the working head and a transmission structure for transmitting power, the motor drives the working head to swing reciprocally in a working plane through the transmission structure and the clamping structure, the reciprocating swing type electric tool also comprises a long rod and a handle assembly, the working assembly is arranged at the front end of the long rod, the handle assembly is arranged at the rear end of the long rod, and the length direction of the long rod is parallel to the working plane. The structure of the reciprocating swing type electric tool is reasonably improved, so that the functional purpose of the swing type electric tool is reasonably expanded, and the use experience of a user is improved.

Description

Reciprocating swing type electric tool

Technical Field

The utility model relates to the technical field of electric tools, in particular to a reciprocating swing type electric tool.

Background

With the development and improvement of the technology level, various electric tools are increasingly applied to production and daily use, and the working efficiency of people is greatly improved through the electric tools, so that the working intensity of people can be reduced. The swinging shovel in the prior art is a common reciprocating swinging type electric tool, and a motor in a machine shell can drive a tool bit connected with an output shaft to do high-frequency reciprocating motion. The swing shovel can realize multiple functions such as cutting, polishing, scraping shovel, thick contusion, polishing through changing the tool bit, can be fine satisfy user's diversified user demand. However, the existing swinging shovel is only used for finishing the surface treatment work of the low place, cannot be used as a gardening tool, particularly cannot cut the vertical place of the high place, is limited in functional use, and is not beneficial to meeting the use requirements of customers.

Disclosure of Invention

In order to solve the defects and shortcomings in the prior art, the utility model provides the reciprocating swing type electric tool, and the long rod and the handle assembly are additionally arranged, so that the reciprocating swing type electric tool can be used as a garden tool, the functional purpose of the reciprocating swing type electric tool is reasonably expanded, and the use experience of a user is improved.

In order to achieve the technical purpose, the utility model provides a reciprocating swing type electric tool, which comprises a working assembly, wherein the working assembly is provided with a motor, a working head, a clamping structure for clamping or loosening the working head and a transmission structure for transmitting power, the motor drives the working head to reciprocate in a working plane through the transmission structure and the clamping structure, the reciprocating swing type electric tool also comprises a long rod and a handle assembly, the working assembly is arranged at the front end of the long rod, the handle assembly is arranged at the rear end of the long rod, and the length direction of the long rod is parallel to the working plane.

Preferably, the working assembly comprises a machine head shell, the motor, the clamping structure and the transmission structure are arranged in the machine head shell, and the working head is arranged outside the machine head shell.

Preferably, the front end of the long rod is provided with a fixed seat, and the machine head shell is detachably matched with the fixed seat.

Preferably, the handle component is detachably arranged at the rear end of the long rod, and the machine head shell is detachably matched with the handle component; or, the reciprocating swing type electric tool further comprises a machine body shell, the machine body shell is provided with a handle part, and the machine head shell is detachably matched with the machine body shell.

Preferably, the clamping structure comprises an inner shaft and an outer shaft which are sleeved together, the inner shaft can move back and forth along the axial direction relative to the outer shaft, an upper chuck is arranged at the bottom end of the outer shaft, a lower chuck which is positioned at the bottom of the upper chuck is arranged at the bottom end of the inner shaft, and the upper chuck and the lower chuck are matched to clamp or loosen the working head.

Preferably, the clamping structure comprises an elastic piece and an unlocking piece, the elastic piece acts on the inner shaft to enable the inner shaft to be in a clamping position where the lower chuck and the upper chuck are matched to clamp the working head, and the unlocking piece can drive the inner shaft to move downwards to an unlocking position where the lower chuck is separated from the upper chuck.

Preferably, the elastic piece is a spring sleeved outside the inner shaft, and the spring is in a compressed state, one end of the spring is positioned and arranged, and the other end of the spring is abutted against the inner shaft.

Preferably, the unlocking piece is rotatably arranged on the machine head shell.

Preferably, the transmission structure comprises a rotating shaft driven by a motor, a rotating part eccentrically sleeved on the rotating shaft, and a shifting fork sleeved on the outer shaft and matched with the rotating part, wherein the rotating part eccentrically rotates to drive the clamping structure to swing reciprocally through the shifting fork.

Preferably, the outer shaft is rotatably arranged in the machine head shell through two bearings which are arranged in parallel up and down, and the upper chuck and the lower chuck are arranged outside the machine head shell.

After the technical scheme is adopted, the utility model has the following advantages:

1. the reciprocating swing type electric tool provided by the utility model is additionally provided with the long rod and the handle assembly on the basis of the working assembly capable of finishing reciprocating swing, so that the reciprocating swing type electric tool can be used as a gardening tool. When the working head adopts a saw blade, the machine body can be used for cutting branches at high positions. When the working head adopts a steel wire head, the machine body can be used for weeding, removing moss, derusting and the like. The structure of the reciprocating swing type electric tool is reasonably improved, so that the functional purpose of the swing type electric tool is reasonably expanded, and the use experience of a user is improved. Because the frequency of the reciprocating swing of the working head is higher, the working efficiency of the machine body is higher when the machine body is used for weeding, cutting branches, removing moss, removing rust and the like, and the working efficiency is improved. Because the swing type working assembly does not need to be provided with a speed reducing structure, the weight of the head at the front end of the long rod can be greatly reduced, and the operation difficulty of a user can be reduced while the working effect is ensured. Because the angle of the reciprocating swing of the working head in the working plane is smaller, the direction of the working head can be conveniently adjusted according to the working condition and the environmental condition when the working head is used, so that the working head can effectively work in a smaller operation space.

2. The machine head shell of the working assembly is detachably matched with the fixing seat, and when the working assembly is assembled on the fixing seat, the working range of the reciprocating swing type electric tool is larger. When the working assembly is separated from the fixing seat, the working assembly can be additionally connected with the machine body shell or the handle assembly, so that the reciprocating swing type electric tool can be used for finishing the surface treatment work of the lower part. The cooperation mode between work subassembly and the fixing base is rationally set up, is favorable to rationally expanding reciprocating swing formula electric tool's operation scope, makes reciprocating swing formula electric tool not only can realize functions uses such as polishing, spatula, thick contusion, polishing, can also realize functions uses such as cutting branch, grass-mowing, moss removal, makes its better diversified user demand that satisfies the user.

3. The inner shaft of the clamping structure is provided with the lower chuck, the outer shaft of the clamping structure is provided with the upper chuck, the purpose of clamping or loosening the working head is achieved through the cooperation of the upper chuck and the lower chuck, the specific structure of the clamping structure is reasonably arranged, and a user can conveniently replace the corresponding working head according to specific use requirements.

Drawings

FIG. 1 is a diagram of a complete machine of a reciprocating swing type power tool according to an embodiment;

FIG. 2 is a partial block diagram of a reciprocating swing type power tool according to an embodiment;

FIG. 3 is a partial block diagram of a working assembly of a reciprocating swing type power tool according to an embodiment;

FIG. 4 is an exploded view of a portion of the construction of a working assembly of a reciprocating oscillating power tool according to an embodiment;

FIG. 5 is an axial cross-sectional view showing a portion of the construction of a working assembly in a reciprocating oscillating power tool according to an embodiment;

FIG. 6 is a diagram showing the configuration of the motor and the rotor of the reciprocating swing type electric tool according to the first embodiment;

FIG. 7 is a diagram showing the configuration of the motor, rotary member and fork of a reciprocating swing type electric tool according to an embodiment;

FIG. 8 is a schematic side view of a reciprocating swing type power tool according to an embodiment;

FIG. 9 is a schematic view showing a partial structure of a reciprocating swing type electric tool according to the second embodiment;

FIG. 10 is a schematic diagram showing the cooperation of the working assembly and the housing of the machine body in the second embodiment of the reciprocating swing type electric tool;

FIG. 11 is a schematic view showing the cooperation of a working assembly and a handle assembly in a three-stroke oscillating power tool according to an embodiment;

FIG. 12 is a block diagram of a steel wire head in accordance with the fourth embodiment;

FIG. 13 is an exploded view of a steel spinneret in a fourth embodiment;

FIG. 14 is a partial block diagram of a steel wire head in accordance with the fourth embodiment;

FIG. 15 is a schematic view showing the partial structure of a steel wire head according to the fifth embodiment;

FIG. 16 is a block diagram of a saw blade in a seventh embodiment;

fig. 17 is an enlarged view at a in fig. 16.

In the figure, 100-working assembly, 110-motor, 121-inner shaft, 122-outer shaft, 123-upper chuck, 124-lower chuck, 125-bearing, 126-spring, 127-stop pin, 128-shaft cover, 129-unlocking piece, 130-handpiece housing, 141-rotating shaft, 142-rotating piece, 143-shifting fork, 143 a-socket, 143 b-fork arm, 150-shovel, 151-first clamping part, 152-bending part, 153-first working part, 200-long rod, 210-rod body, 220-adjusting sleeve, 230-fixed seat, 300-handle assembly, 310-handle, 320-battery pack, 400-fuselage housing, 500-steel wire head, 510-second clamping part, 511-second clamping groove, 512-second limit hole, 520-second working part, 521-arc edge, 522-wire cluster head, 523-first clamping plate, 5231-first skirt, 524-second clamping plate, 5241-second skirt, 525-fixing plate, 5251-fixing hole, 526-edging piece, 600-saw blade, 610-third clamping part, 611-third clamping groove, 612-third limit hole, 620-sawing part, 621-inner saw tooth, 621 a-inner tooth edge, 622-outer saw tooth, 622 a-outer tooth edge, 623-guiding bevel edge, 630-Rong Liaocao, 640-connecting part.

Detailed Description

The utility model will be further described with reference to the drawings and the specific examples. It is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, as used herein, are merely based on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the devices/elements referred to must have or be configured and operated in a particular orientation and therefore should not be construed as limiting the utility model.

Example 1

Referring to fig. 1 to 8, a reciprocating swing type electric tool according to a first embodiment of the present utility model includes a working assembly 100 having a motor 110 and a working head, wherein the motor 110 drives the working head to reciprocate in a working plane. The reciprocating swing type electric tool further comprises a long rod 200 and a handle assembly 300, wherein the working assembly 100 is arranged at the front end of the long rod 200, the handle assembly 300 is arranged at the rear end of the long rod 200, and the length direction of the long rod 200 is parallel to the working plane.

The long rod 200 and the handle assembly 300 are additionally arranged on the basis of the working assembly 100, so that the reciprocating swing type electric tool can be used as a gardening tool. The structure of the reciprocating swing type electric tool is reasonably improved, so that the functional purpose of the swing type electric tool is reasonably expanded, and the use experience of a user is improved.

Referring to fig. 2 and 3, in this embodiment, the working assembly 100 further includes a handpiece housing 130, a clamping structure for clamping or unclamping the working head, and a transmission structure for transmitting power, where the motor 110 drives the working head to reciprocate in a working plane through the transmission structure and the clamping structure, the motor 110, the clamping structure and the transmission structure are disposed inside the handpiece housing 130, and the working head is disposed outside the handpiece housing 130.

Referring to fig. 4 and 5, the clamping structure includes an inner shaft 121 and an outer shaft 122 that are sleeved together, the inner shaft 121 is disposed to move back and forth axially relative to the outer shaft 122, an upper chuck 123 is disposed at the bottom end of the outer shaft 122, a lower chuck 124 disposed at the bottom of the upper chuck 123 is disposed at the bottom end of the inner shaft 121, and the upper chuck 123 and the lower chuck 124 cooperate to clamp or unclamp the working head. In this embodiment, the outer shaft 122 is rotatably disposed in the handpiece housing 130 through two bearings 125 disposed in parallel up and down, the upper chuck 123 and the lower chuck 124 are disposed outside the handpiece housing 130, and the upper chuck 123 is provided with a plurality of limiting pins 127 circumferentially spaced apart.

In order to enable the lower jaw 124 to cooperate with the upper jaw 123 to clamp the working head, the clamping arrangement further comprises resilient members acting on the inner shaft 121 to bring the inner shaft 121 into a clamping position in which the lower jaw 124 cooperates with the upper jaw 123 to clamp the working head. In this embodiment, the elastic member is a spring 126 sleeved outside the inner shaft 121, and the spring 126 is in a compressed state, one end of the spring is positioned and arranged, and the other end of the spring abuts against the inner shaft 121. Specifically, the top end of the inner shaft 121 is sleeved with the shaft cover 128, the top end of the spring 126 abuts against the shaft cover 128 to abut against the inner shaft 121, and the bottom end of the spring 126 abuts against the step surface to achieve positioning. The spring 126 applies an upward force to the inner shaft 121, causing the inner shaft 121 to normally assume a clamping position in which the lower collet 124 cooperates with the upper collet 123 to clamp the working head. It will be appreciated that other resilient members that can place the inner shaft 121 in the clamped position and return the inner shaft 121 to the clamped position can be used.

To facilitate user replacement of the working head, the working assembly 100 further includes an unlocking member 129, the unlocking member 129 acting on the inner shaft 121, the unlocking member 129 being operable to urge the inner shaft 121 downwardly to an unlocked position in which the lower collet 124 is disengaged from the upper collet 123. In this embodiment, the unlocking member 129 is rotatably disposed at the top of the handpiece housing 130, and when the unlocking member 129 rotates upward, the bottom side of the unlocking member 129 abuts against the inner shaft 121 to move the inner shaft 121 downward against the elastic force of the spring 126, the downward moving inner shaft 121 drives the lower collet 124 to move downward synchronously and compress the spring 126 under further force, and the lower collet 124 is far away from the upper collet 123, so that the upper collet 123 and the lower collet 124 release the working head, and the working head can be removed and replaced. After replacement, the unlocking member 129 is rotated downwards, so that the unlocking member 129 releases the inner shaft 121, and the spring 126 which restores the deformation can drive the inner shaft 121 and the lower chuck 124 to move upwards for resetting, so that the lower chuck 124 and the upper chuck 123 clamp the working head again.

Referring to fig. 6 and 7, the transmission structure includes a rotating shaft 141 driven by the motor 110, a rotating member 142 eccentrically sleeved on the rotating shaft 141, and a shifting fork 143 sleeved on the outer shaft 122 and matched with the rotating member 142, wherein the rotating shaft 141 is perpendicular to the outer shaft 122, and the eccentrically rotating member 142 drives the clamping structure to swing reciprocally through the shifting fork 143. In this embodiment, the axial direction of the motor is parallel to the working plane, the rotating shaft 141 is rotatably disposed at the front end of the motor 110 through a bearing, the rear end of the rotating shaft 141 is directly connected with the motor shaft of the motor 110 in a transmission manner, the front end of the rotating shaft 141 is eccentrically disposed relative to the rear end, the rotating member 142 is sleeved at the front end of the rotating shaft 141, and the rotating member 142 is eccentrically disposed relative to the motor shaft, i.e. the central axis of the rotating member 142 is not coincident with the central axis of the motor shaft. Referring to fig. 7, the fork 143 includes an integrally formed coupling portion 143a and a fork arm 143b, the coupling portion 143a is sleeved outside the outer shaft 122, the coupling portion 143a and the outer shaft 122 are circumferentially limited, the fork arm 143b is symmetrically arranged in a left-right direction, and the rotating member 142 is arranged between the two fork arms 143b and contacts the fork arm 143 b. It is understood that the rotating member 142 may be a bearing, a roller fixedly sleeved on the front end of the rotating shaft 141, or the like.

The motor 110 drives the rotating member 142 to eccentrically rotate through the rotating shaft 141, and the eccentrically rotating member 142 drives the clamping structure to horizontally swing through the shifting fork 143, and the clamping structure drives the working head to reciprocally swing in a horizontal plane. Because the rotating shaft 141 is directly connected with the motor shaft of the motor 110 in a transmission way, the rotating speed of the rotating shaft 141 is higher, and correspondingly, the swinging frequency of the working head is also higher, which is beneficial to improving the working efficiency. Referring to fig. 2, in this embodiment, the reciprocating swing angle range λ of the working head is 3 ° to 10 °. Specifically, the reciprocating swing angle range λ of the working head in this embodiment refers to the maximum swing angle of the front-rear direction center line of the working head in the left-right direction, and the reciprocating swing angle range λ is about 8 °. It is understood that the reciprocating swing angle range λ may be set to other reasonable magnitudes such as 3 °,4 °,5 °,6 °, 7 °, 9 °,10 °.

Referring to fig. 8, the handle assembly 300 includes a handle 310 and a battery pack 320, the handle 310 being fixed to the rear end of the rod body 210, and the battery pack 320 being detachably connected to the rear end of the handle 310. In this embodiment, the voltage of the battery pack 320 is 12V, and the shape of the battery pack 320 is preferably consistent with the shape of the handle 310, i.e., the height of the battery pack 320 is consistent with the height of the handle 310. It will be appreciated that the battery pack 320 may be attached to the top or bottom of the handle 310 at other suitable locations, and that the battery pack 320 may be configured to be larger than the handle 310 when the voltage of the battery pack 320 is high, i.e., the height of the battery pack 320 may be greater than the height of the handle 310.

In order to facilitate the user to adjust the specific length of the long rod 200, in this embodiment, the long rod 200 is preferably a telescopic rod, and the two adjacent rod bodies 210 of the long rod 200 are movably connected through the adjusting sleeve 220, and the specific structure of the adjusting sleeve 220 can refer to the prior art, which is not described herein. It will be appreciated that the rod body 210 of the long rod 200 may be telescopically connected by an existing spring plate structure, and of course, the long rod 200 may also be a single rod structure with a fixed length.

Referring to fig. 3, the working head in this embodiment includes a blade 150, where the blade 150 includes a first clamping portion 151, a bending portion 152, and a first working portion 153 that are sequentially distributed from the back to the front and integrally formed, and the first working portion 153 and the first clamping portion 151 are staggered in the up-down direction. The first clamping portion 151 is provided with a first clamping groove which is approximately U-shaped and a first limiting hole which is located at the periphery of the first clamping groove, when the shovel 150 is clamped on the machine body, the first clamping portion 151 moves forwards and backwards to enable the inner shaft 121 to be clamped into the first clamping groove and enable the first limiting hole to correspond to the limiting pin, the reset inner shaft 121 drives the lower clamping head 124 to move upwards and clamp the first clamping portion 151 in a matched mode with the upper clamping head 123, and the limiting pin 127 is inserted into the corresponding first limiting hole.

Referring to fig. 1 and 8, the front-rear direction is defined as the longitudinal direction, the left-right direction is defined as the width direction, and the up-down direction is defined as the height direction. To improve stability when a user is operating the power tool, at least a portion of the working head is located within the height of the handle assembly 300 in the height direction. The offset distance of the working head relative to the height center line of the handle assembly 300 is reasonably reduced, and the moment action of the working head on the handle assembly 300 caused by acting force applied during working can be reasonably reduced, so that acting force required by a user to stably hold the electric tool through the handle assembly 300 when the electric tool is used can be reduced, the purpose of saving labor in use is achieved, the stability of the user in operating the electric tool can be improved, and the use experience of the user is improved. Preferably, at least part of the working head is located within the height of the handle 310 in the height direction. It will be appreciated that when the height of the battery pack 320 is consistent with the height of the handle 310, at least part of the working head is located within the height of the handle assembly 300; when the height of the battery pack 320 is greater than the height of the handle 310, at least part of the working head is located within the height range of the handle 310.

In connection with fig. 8, when the blade 150 is operated, since the first working portion 153 of the blade 150 is a main force receiving portion, it is preferable that the first working portion 153 of the blade 150 is located within a height range of the handle 310. In this embodiment, the blade 150 is located entirely within the height of the handle 310. It will be appreciated that only the first working portion 153 of the blade 150 may be located within the height of the handle 310, while the first clamping portion 151 and the bending portion 152 of the blade 150 may be located outside the height of the handle 310.

In order to facilitate the user to hold the electric tool stably through the handle 310, the height H of the handle 310 is required to be set reasonably, and H is more than or equal to 30mm and less than or equal to 60mm. In this embodiment, the height H of the handle 310 is about 48mm. It is understood that the height H of the handle 310 may be set to other reasonable sizes such as 30mm, 35mm, 40mm, 42mm, 44mm, 46mm, 47mm, 49mm, 50mm, 52mm, 54mm, 56mm, 58mm, 60mm, etc., and the cross-sectional shape of the handle 310 in the left-right direction may be set to a reasonable shape such as a circular shape, an oblate shape, a rounded rectangle, a rounded square, etc.

Example two

Referring to fig. 9, in this embodiment, a fixing base 230 is disposed at the front end of the long rod 200, and the handpiece housing 130 is detachably matched with the fixing base 230. Referring to fig. 10, the reciprocating swing type electric tool of the present embodiment further includes a body housing 400, the body housing 400 is formed with a handle portion, and the head housing 130 is detachably coupled with the body housing 400. When the working assembly 100 is assembled to the fixing base 230, the reciprocating swing type electric tool is used as a long handle tool, and the working range is wide. When the working assembly 100 is separated from the fixing base 230 and is additionally connected with the body housing 400, the reciprocating swing type electric tool formed by the working assembly 100 and the body housing 400 can be used as a short handle tool.

It can be appreciated that the detachable fixed fit between the handpiece housing 130 and the fixed seat 230, and between the handpiece housing 130 and the body housing 400 can be realized by reasonable structures such as a buckle structure, a screw fit structure, a locking sleeve structure, etc.

Other structures of the second embodiment are the same as those of the first embodiment, and will not be described in detail here.

Example III

Referring to fig. 11, in the second embodiment, the handle assembly 300 is detachably disposed at the rear end of the long rod 200 on the basis of the detachable cooperation between the handpiece housing 130 and the fixing base 230, that is, the handpiece housing 130 separated from the fixing base 230 can be directly fixed with the handle assembly 300 separated from the long rod 200 to be used as a short-handle tool.

It will be appreciated that the handpiece housing 130 and the handle assembly 300 may be detachably and fixedly coupled by a reasonable structure such as a snap-fit structure, a screw-fit structure, a locking sleeve structure, etc.

Other structures of the third embodiment are the same as those of the first embodiment, and will not be described in detail here.

Example IV

Referring to fig. 12, the present embodiment provides a wire head 500 for a reciprocating swing type electric tool, where the wire head 500 is one of the working heads in the first embodiment, the wire head 500 includes a second clamping portion 510 and a second working portion 520 that are relatively fixed, the second working portion 520 is provided with an arc edge 521 and a wire cluster head 522 on a side facing away from the second clamping portion 510, and the wire cluster head 522 extends away from the clamping portion and is distributed in a plurality along an arc direction of the arc edge 521.

The distribution mode of the steel wire cluster heads 522 is reasonably set according to the motion characteristics of the reciprocating swing type electric tool, so that the effective working range of the second working part 520 is ensured, the steel wire cluster heads 522 are driven to realize the functions of weeding, moss removal, rust removal and the like when the steel wire cluster heads 522 reciprocate due to the higher strength and hardness of the steel wire cluster heads 522, and the frequency of the reciprocating swing type electric tool is higher due to the higher output frequency of the reciprocating swing type electric tool, so that the work efficiency of the steel wire cluster heads 522 is improved. The steel wire head 500 can reasonably expand the functional purpose of the reciprocating swing type electric tool, and is beneficial to improving the use experience of users.

Referring to fig. 13, the second working portion 520 includes a fixing member, a first clamping plate 523 and a second clamping plate 524, each wire cluster head 522 is disposed on the fixing member, and the first clamping plate 523 and the second clamping plate 524 are respectively disposed at opposite sides of the fixing member and clamp an end portion of the wire cluster head 522 toward the second clamping portion 510 and the fixing member. In this embodiment, the fixing member is a flat fixing plate 525, the fixing plate 525 is provided with a plurality of fixing holes 5251 distributed at intervals along the arc direction for fixing the wire cluster heads 522, and each wire cluster head 522 is disposed on the fixing plate 525 by being matched with the fixing hole 5251. Specifically, the wire cluster head 522 is formed by twisting a wire bundle passing through the fixing hole 5251 after being folded in half.

In this embodiment, the second working portion 520 is in a fan shape, and accordingly, the fixing plate 525, the first clamping plate 523 and the second clamping plate 524 are all fan-shaped plates, and the arc-shaped outer edge of the first clamping plate 523 and the arc-shaped outer edge of the second clamping plate 524 are combined to determine the arc-shaped edge 521. The first clamping plate 523 is provided with a first skirt 5231 at a front side facing away from the second clamping portion 510, the second clamping plate 524 is provided with a second skirt 5241 at a front side facing away from the second clamping portion 510, and the first skirt 5231 and the second skirt 5241 are matched to clamp the rear end of the wire cluster head 52.

In connection with fig. 14, in order to reasonably set the number of the wire cluster heads 522, it is necessary to reasonably set the central angle α of the fan-shaped second working portion 520, 60 ° or more and 120 ° or less, and the central angle of the arc-shaped edge 521 is identical to the central angle α of the second working portion 520. In the present embodiment, the center angle α of the second working portion 520 is set to 90 °. It is understood that the center angle α of the second working portion 520 may be set to be 60 °, 65 °, 70 °, 75 °, 80 °, 85 °, 89 °, 91 °, 95 °,100 °, 105 °,110 °, 115 °, 120 °, or other reasonable values.

In order for the wire cluster head 522 to treat weeds, moss, or the like at the gap, the front end portion of the wire cluster head 522 is tapered and has a taper angle β,45 ° or more and β or less than 90 °. In this embodiment, the taper angle β of the front end of the wire cluster head 522 is preferably set to 70 °, and it is understood that the taper angle β of the front end of the wire cluster head 522 may be set to other reasonable dimensions such as 45 °,50 °, 55 °,60 °, 65 °, 69 °, 71 °, 75 °, 80 °, 85 °, 90 °.

In this embodiment, the second clamping portion 510 is also configured as a fan shape, and the fan-shaped center angle θ of the second clamping portion 510 is smaller than the fan-shaped center angle α of the second working portion 520. In this embodiment, the fan-shaped center angle θ of the second clamping portion 510 is preferably set to 50 °. It can be appreciated that the fan-shaped center angle θ of the second clamping portion 510 may be set to be 40 °,45 °, 48 °,52 °, 55 °,60 ° or other reasonable sizes, which may meet the clamping requirement of the spinneret 500. Of course, the fan-shaped center angle θ of the second clamping portion 510 may be set in correspondence with the fan-shaped center angle α of the second working portion 520.

Referring to fig. 14, the second clamping portion 510 is provided with a second clamping groove 511 and a second limiting hole 512, the second clamping groove 511 is substantially U-shaped and has an open rear end, and the second limiting hole 512 is provided at an outer periphery of the second clamping groove 511 and is provided in plurality along a circumferential direction of the second clamping groove 511 at intervals. When the steel wire head 500 is clamped on the machine body, the second clamping part 510 moves from front to back to clamp the inner shaft 121 into the second clamping groove 511 and enable the second limiting hole 512 to correspond to the limiting pin 127, the reset inner shaft 121 drives the lower chuck 124 to move upwards and clamp the second clamping part 151 in cooperation with the upper chuck 123, and the limiting pin 127 is inserted into the corresponding second limiting hole 512.

In this embodiment, the second clamping portion 510 is plate-shaped, and the front side is clamped between the first clamping plate 523 and the second clamping plate 524, and the first clamping plate 523, the second clamping plate 524, the second clamping portion 510 and the fixing plate 525 are fixed together by the cooperation of screws and nuts, and each wire cluster head 522 extends forward away from the second clamping portion 510 substantially along different radial directions of the second working portion 520, that is, the wire cluster head 522 and the second clamping portion 510 are substantially aligned. When the steel wire head 500 is clamped on the machine body, the steel wire head 500 is integrally positioned in the height range of the handle 310.

When the machine body works, the motor 110 drives the steel wire head 500 to swing in a left-right reciprocating manner through the transmission structure and the clamping structure, and the steel wire cluster head on the steel wire head 500 can be used for achieving the functions of weeding, removing moss, derusting and the like when the steel wire cluster head swings in the left-right reciprocating manner.

Other structures of the fourth embodiment are the same as those of the first embodiment, and will not be described in detail here.

It will be appreciated that other reasonable arrangements of the securing members are possible, such as a wire rope, where the doubled-over portion of the wire cluster head 522 is hung on the wire rope, and the wire rope is clamped between the first clamp plate 523 and the second clamp plate 524.

It is understood that the second clamping portion 510 and the fixing plate 525 may be integrally formed.

It will be appreciated that the fourth embodiment may be combined with either the second or third embodiments.

Example five

Referring to fig. 15, in the fourth embodiment, the second working portion 520 includes a binding member 526, where the binding member 526 is disposed on a side of the second working portion 520 facing the second clamping portion 510 and clamps inner edges of the first clamping plate 523, the second clamping plate 524, and the fixing plate 525. The clamping strength of the first clamping plate 523 and the second clamping plate 524 to the fixing plate 525 can be effectively improved through the edge covering piece 526, and the structural stability of the working part is improved. In this embodiment, the second clamping portion 510 is located outside the first clamping plate 523 or the second clamping plate 524, and the second clamping portion 510 and the second working portion 520 are fixed together by a fastener.

Other structures of the fifth embodiment are the same as those of the fourth embodiment, and will not be described in detail here.

Example six

In this embodiment, the wire cluster head 522 extends obliquely away from the second clamping portion 510. Specifically, each wire tuft head 522 extends diagonally downward generally along a different radial direction of the second working portion 520.

Other structures of the sixth embodiment are the same as those of the fourth embodiment, and will not be described in detail here.

It will be appreciated that embodiment six may be combined with embodiment five.

Example seven

With reference to fig. 16, this embodiment provides a saw blade 600 for a reciprocating swing type power tool, the saw blade 600 being one of the working heads of the first embodiment. The saw blade 600 includes a third clamping portion 610 and a sawing portion 620 which are relatively fixed, a containing groove 630 with an opening at one side is arranged between the sawing portion 620 and the third clamping portion 610, a plurality of inner saw teeth 621 are arranged at the inner edge of the sawing portion 620 towards the containing groove 630, and a plurality of outer saw teeth 622 are arranged at the outer edge of the sawing portion 620 away from the containing groove 630.

When the inner saw teeth 621 are adopted for cutting, a user can pull the electric tool backwards to enable the inner saw teeth 621 to move backwards relative to the cut branches, especially when the saw blade 600 is used for cutting branches with thicker heights, the saw blade 600 can move downwards relative to the branches, due to the fact that the saw openings of the branches face upwards, the saw openings can be widened due to the fact that the branches drooping under the action of dead weight can be avoided, the situation that the saw openings are narrowed due to the fact that the saw openings are blocked is avoided, cutting efficiency is improved, and therefore user experience is improved.

In this embodiment, the saw blade 600 further includes a connecting portion 640, wherein one end of the connecting portion 640 is connected to the third clamping portion 610, and the other end of the connecting portion 640 is connected to the sawing portion 620, and the Rong Liaocao and the connecting portion 640 and the sawing portion 620 are enclosed to form a container 630, which is open at a side far from the connecting portion 640. Preferably, the third clamping portion 610, the sawing portion 620 and the connecting portion 640 are integrally formed and aligned, i.e. the clamping portion 510, the sawing portion 520 and the connecting portion 540 are located in the same plane, and the saw blade 500 is in a sheet shape. A straight line M in fig. 16 represents an approximate dividing line between the third clamping portion 610 and the connecting portion 640, and a straight line N represents an approximate dividing line between the connecting portion 640 and the sawing portion 620. It should be understood that the straight lines M and N are only used to illustrate that the saw blade has different portions, and are not necessarily used as strict boundaries between the third clamping portion 610, the connecting portion 640 and the sawing portion 620, and other boundaries may be used to represent the distribution positional relationship among the three.

In this embodiment, the third clamping portion 610 is provided with a third clamping groove 611 and a third limiting hole 612, the third clamping groove 611 is substantially U-shaped and has an open rear end, and the third limiting hole 612 is disposed at the periphery of the third clamping groove 611 and is provided with a plurality of third limiting holes along the circumferential direction of the third clamping groove 611 at intervals. When the saw blade 600 is clamped on the machine body, the third clamping part 610 moves from front to back to clamp the inner shaft 121 into the third clamping groove 611 and enable the third limiting hole 612 to correspond to the limiting pin 127, the reset inner shaft 121 drives the lower chuck 124 to move upwards and clamp the third clamping part 610 in cooperation with the upper chuck 123, and the limiting pin 127 is inserted into the corresponding third limiting hole 612. Since the saw blade 600 is in a flat sheet shape, the saw blade 600 as a whole is positioned within the width of the handle 310 when assembled to the machine body.

In this embodiment, the sawing portion 620 is in a fan-shaped ring shape, the inner saw teeth 621 are distributed along the arc direction of the arc inner edge of the sawing portion 620, and the outer saw teeth 622 are distributed along the arc direction of the sawing portion 620 to the outer edge. Preferably, the fan-shaped sawing part 620 is disposed concentrically with the third clamping groove 611. The point E in fig. 16 is the center point of the third clamping groove 611 and is also the center point of the fan-shaped annular saw cut 620. The center angle of the fan ring of the sawing part 620 is gamma which is more than or equal to 60 degrees and less than or equal to 120 degrees. In this embodiment, γ is preferably set to 90 °. It is understood that the fan ring center angle γ of the saw cutting portion 620 may be set to be 60 °, 65 °, 70 °, 75 °, 80 °, 85 °, 89 °, 91 °, 95 °,100 °, 105 °,110 °, 115 °, 120 °, or other reasonable sizes.

In order to enable the inner saw teeth 621 to effectively cut branches, the groove width W of the containing groove 630 is required to be reasonably set, and W is more than or equal to 30mm and less than or equal to 100mm. In this embodiment, the radius of the inner edge of the sawing portion 620 is about 70mm, the radius of the outer edge of the sawing portion 620 is about 90mm, and the width of the receiving groove 630 is reduced from the open side toward the side of the connecting portion 640, and the width of the receiving groove 630 on the open side is about 55mm. It will be appreciated that the slot width on the open side of the receiving slot 630 may be provided in other reasonable sizes such as 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, etc.

In order to facilitate the branches to be cut to enter the containing groove 630, the sawing part 620 is provided with a guide bevel edge 623 at a position facing the open side of the containing groove 630, and an avoidance part is formed through the guide bevel edge 623, so that the width of the open position of the containing groove 630 can be properly enlarged.

Referring to fig. 17, in the present embodiment, the inner saw teeth 621 are trapezoidal teeth, at least one waist edge of the inner saw teeth 621 is provided with an inner tooth edge 621a, and the outer saw teeth 622 are arc-shaped teeth and are provided with arc-shaped outer tooth edges 622a. Preferably, the inner tooth edges 621a on adjacent two of the inner teeth 621 are provided at the waist edges on different sides, so that the inner teeth 621 can bidirectionally cut branches when the saw blade 600 swings back and forth. It will be appreciated that the inner and outer teeth 621, 622 may be provided in other tooth shapes that meet the cutting requirements of the tree branch.

When branches or weeds need to be cut, the saw blade 600 is clamped on the machine body, the third clamping part 610 moves forwards and backwards, the inner shaft 121 is clamped in the third clamping groove 611, the third limiting hole 612 corresponds to the limiting pin 127, the reset inner shaft 121 drives the lower clamping head 124 to move upwards and clamp the third clamping part 610 in a matched mode with the upper clamping head 123, and the limiting pin 127 is inserted into the corresponding third limiting hole 612. Since the blade 600 is in a flat sheet shape, the blade 600 as a whole is located within the height range of the handle 310 after assembly.

In operation, the motor 110 may drive the saw blade 600 to reciprocate left and right at high frequencies in the working plane via a transmission mechanism and a clamping mechanism. When the branches to be cut are thicker, the movable machine body enables the branches to enter the containing groove 630 and then cut by the aid of the inner saw teeth 621, when the movable machine body is used for cutting, a user can pull the machine body downwards to enable the saw blade 600 to move downwards relative to the branches, and due to the fact that saw cuts of the branches face upwards, the saw cuts can be widened due to the fact that the branches droops under the action of dead weight, and the situation that the saw cuts are narrowed due to the fact that the saw cuts are widened is avoided. When the branches to be cut are thin, or when weeds are cut, the machine body is moved and the roots thereof are cut by the outer saw teeth 622, and the branches or weeds are not blocked by the saw blade 600 due to the light weight of the branches or weeds.

Other structures of the seventh embodiment are the same as those of the fourth embodiment, and will not be described in detail here.

Example eight

In this embodiment, the saw cutting portion 620 is in a straight line shape, the inner saw teeth 621 are distributed along the straight line direction of the inner edge of the saw cutting portion 620, and the outer saw teeth 622 are distributed along the straight line direction of the outer edge of the saw cutting portion 620.

Other structures of the eighth embodiment are the same as those of the seventh embodiment, and will not be described in detail here.

Example nine

In this embodiment, the inner saw teeth 621 and the outer saw teeth 622 are formed separately, the inner tooth bar with the inner saw teeth 621 is fixed at the inner edge of the sawing portion 620 facing the receiving groove 630, and the outer tooth bar with the outer saw teeth 622 is fixed at the outer edge of the sawing portion 620 facing away from the Rong Liaocao side.

Other structures of the ninth embodiment are the same as those of the seventh embodiment, and will not be described in detail here.

It will be appreciated that embodiment nine may be combined with embodiment eight.

Examples ten

In this embodiment, the axial direction of the motor 110 is perpendicular to the working plane, and at this time, the axial direction of the motor shaft, the axial direction of the inner shaft 121, the axial direction of the outer shaft 122, and the axial direction of the rotating member 142 are parallel, so that the length of the working assembly 100 in the front-rear direction can be reduced reasonably. The motor 110 drives the rotating member 142 to eccentrically rotate at a high speed in a left-right plane through the rotating shaft 141, and the eccentrically rotating member 142 drives the working head to reciprocate left and right through the shifting fork and the clamping structure.

Other structures of the tenth embodiment are the same as those of the first embodiment, and will not be described in detail here.

It is to be understood that embodiment ten may be combined with any one of the second to ninth embodiments.

In addition to the above preferred embodiments, the present utility model has other embodiments, and various changes and modifications may be made by those skilled in the art without departing from the spirit of the utility model, which shall fall within the scope of the utility model as defined in the appended claims.

Claims (10)

1. The utility model provides a reciprocating swing formula electric tool, includes work subassembly, work subassembly have motor, work head, be used for pressing from both sides tight or loosen the tight structure of clamp of work head, be used for transmitting the transmission structure of power, the motor passes through transmission structure and presss from both sides tight structure drive work head and reciprocates the swing in the working plane, its characterized in that, reciprocating swing formula electric tool still includes stock and handle subassembly, and the front end of stock is located to work subassembly, and the rear end of stock is located to the handle subassembly, and the length direction and the working plane of stock are parallel.

2. The reciprocating swing electric tool according to claim 1, wherein said working assembly comprises a nose housing, said motor, said clamping structure and said transmission structure being disposed within said nose housing, said working head being disposed outside said nose housing.

3. The reciprocating and oscillating power tool of claim 2, wherein the front end of the long rod is provided with a fixing seat, and the handpiece housing is detachably engaged with the fixing seat.

4. A reciprocating swing electric tool according to claim 3, wherein said handle assembly is detachably provided at the rear end of the wand, the nose housing being detachably engaged with the handle assembly; or, the reciprocating swing type electric tool further comprises a machine body shell, the machine body shell is provided with a handle part, and the machine head shell is detachably matched with the machine body shell.

5. The tool according to claim 2, wherein the clamping structure comprises an inner shaft and an outer shaft which are sleeved together, the inner shaft is arranged to move back and forth relative to the outer shaft in the axial direction, an upper chuck is arranged at the bottom end of the outer shaft, a lower chuck is arranged at the bottom of the upper chuck at the bottom of the inner shaft, and the upper chuck and the lower chuck are matched to clamp or unclamp the working head.

6. The tool of claim 5, wherein the clamping mechanism comprises an elastic member and an unlocking member, the elastic member acting on the inner shaft to cause the inner shaft to be in a clamping position in which the lower chuck cooperates with the upper chuck to clamp the working head, the unlocking member being operable to urge the inner shaft downwardly to an unlocking position in which the lower chuck is disengaged from the upper chuck.

7. The tool according to claim 6, wherein the elastic member is a spring sleeved outside the inner shaft, the spring is in a compressed state, one end of the spring is positioned and arranged, and the other end of the spring abuts against the inner shaft.

8. The reciprocating swing electric tool according to claim 6, wherein said unlocking member is rotatably provided on the head housing.

9. The tool according to claim 5, wherein the transmission structure comprises a rotating shaft driven by a motor, a rotating member eccentrically sleeved on the rotating shaft, and a shifting fork sleeved on the outer shaft and matched with the rotating member, and the eccentrically rotating member drives the clamping structure to reciprocate through the shifting fork.

10. The reciprocating and oscillating power tool of claim 5, wherein the outer shaft is rotatably disposed within the nose housing by two bearings disposed side-by-side, the upper and lower chucks being disposed outside the nose housing.