CN219834886U - Steel wire head for reciprocating swing type electric tool - Google Patents

Abstract

The utility model discloses a steel wire head for a reciprocating swing type electric tool, which belongs to the technical field of electric tools and comprises a clamping part and a working part which are relatively fixed, wherein an arc-shaped edge and steel wire cluster heads are arranged on one side of the working part, which is away from the clamping part, and the steel wire cluster heads extend away from the clamping part and are distributed in a plurality of arc directions along the arc-shaped edge. According to the motion characteristics of the reciprocating swing type electric tool, the distribution mode of the steel wire cluster heads is reasonably set, the effective working range of the working part is ensured, the steel wire cluster heads are driven to realize the functions of weeding, moss removal, rust removal and the like when the steel wire cluster heads reciprocate, and the output frequency of the reciprocating swing type electric tool is higher, so that the frequency of the reciprocating swing of the steel wire cluster heads is higher, and the working efficiency of the steel wire cluster heads is improved. The steel wire head can reasonably expand the functional purpose of the reciprocating swing type electric tool, and is beneficial to improving the use experience of users.

Description

Steel wire head for reciprocating swing type electric tool

Technical Field

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

Background

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 functions such as polishing, scraping shovel, thick contusion, polishing through changing the tool bit, and diversified user demands of user can be fine satisfied. However, the existing swinging shovel does not have a weeding function, because the weeding tool bit of the existing weeding machine is driven by a motor to do unidirectional circular rotation movement, the existing weeding tool bit cannot be directly applied to the swinging shovel, and because the existing weeding tool bit mostly adopts a disc-type sawtooth structure or a weeding line structure, the function of the weeding tool bit is limited, and the reasonable expansion of the functional purpose of the reciprocating swinging type electric tool is not facilitated.

Disclosure of Invention

In order to solve the defects and shortcomings in the prior art, the utility model provides the steel wire head for the reciprocating swing type electric tool, and the structure of the steel wire head is reasonably improved, so that the steel wire head can be applied to the reciprocating swing type electric tool, and the functions of weeding, moss removal, rust removal and the like are realized, and the use requirements of users are better met.

In order to achieve the technical purpose, the steel wire head for the reciprocating swing type electric tool comprises a clamping part and a working part which are relatively fixed, wherein an arc-shaped edge and steel wire cluster heads are arranged on one side of the working part, which is away from the clamping part, and the steel wire cluster heads extend away from the clamping part and are distributed in a plurality of arc directions along the arc-shaped edge.

Preferably, the central angle of the arc-shaped edge is alpha, and alpha is more than or equal to 60 degrees and less than or equal to 120 degrees.

Preferably, the end part of the steel wire cluster head, which is away from the clamping part, is conical and has a cone angle beta, wherein beta is more than or equal to 45 degrees and less than or equal to 90 degrees.

Preferably, the working part is in a fan ring shape; and/or the clamping part is in a sector shape.

Preferably, the working part comprises a fixing piece, a first clamping plate and a second clamping plate, wherein each steel wire cluster head is arranged on the fixing piece, the first clamping plate and the second clamping plate are respectively positioned on two opposite sides of the fixing piece, and the end part, facing the clamping part, of the steel wire cluster head and the fixing piece are clamped.

Preferably, the first clamping plate is provided with a first skirt edge at the front side back to the clamping part, the second clamping plate is provided with a second skirt edge at the front side back to the clamping part, and the first skirt edge and the second skirt edge are matched to clamp the end part of the steel wire cluster head towards the clamping part.

Preferably, the fixing piece is a fixing plate, the fixing plate is provided with a plurality of fixing holes which are distributed at intervals along the arc direction and are used for fixing the steel wire cluster heads, and each steel wire cluster head is matched with the fixing hole to be arranged on the fixing plate.

Preferably, the steel wire cluster head is formed by twisting a steel wire bundle which passes through the fixing hole after being folded in half.

Preferably, the working portion comprises an edge covering piece, and the edge covering piece is arranged on one side of the working portion facing the clamping portion and clamps the inner edges of the first clamping plate, the second clamping plate and the fixing plate.

Preferably, the steel wire cluster heads extend along the corresponding radial directions of the arc edges and back to the clamping parts; or the steel wire cluster head extends obliquely relative to the clamping part.

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

1. according to the steel wire head provided by the utility model, the plurality of steel wire cluster heads of the working part are distributed along the arc direction of the arc edge, the distribution mode of the steel wire cluster heads is reasonably set according to the motion characteristics of the reciprocating swing type electric tool, the effective working range of the working part is ensured, the steel wire cluster heads have higher strength and hardness, the steel wire cluster heads can realize the functions of weeding, moss removal, rust removal and the like when being driven to swing in a reciprocating manner, and the output frequency of the reciprocating swing type electric tool is higher, so that the reciprocating swing frequency of the steel wire cluster heads is higher, and the working efficiency of the steel wire cluster heads is improved. The steel wire head can reasonably expand the functional purpose of the reciprocating swing type electric tool, and is beneficial to improving the use experience of users.

2. The central angle alpha of the arc edge is reasonably set, so that the effective working range of the steel wire cluster head is ensured, and meanwhile, the motion stability of the steel wire head is ensured. If alpha is smaller than 60 degrees, the radian of the arc-shaped edge is shorter, the number of the steel wire cluster heads distributed along the arc direction of the arc-shaped edge is smaller, the effective working range of the steel wire cluster heads is smaller, and the work efficiency is not guaranteed. If alpha is more than 120 degrees, the radian of the arc-shaped edge is longer, the number of the steel wire cluster heads distributed along the arc direction of the arc-shaped edge is more, the weight of the steel wire head is larger, the stability of the movement of the steel wire head during reciprocating swing is not guaranteed, and a user easily feels unbalanced operation during use.

3. The cone angle beta of the front end of the steel wire cluster head is reasonably arranged, so that the steel wire cluster head can effectively clean weeds, moss and the like at the seam, and the cleaning effect is improved. If beta is smaller than 45 degrees, the front end of the steel wire cluster head is sharp and is easy to deform after being stressed, so that the structural stability of the steel wire cluster head is not guaranteed. If beta is more than 90 degrees, the front end of the steel wire cluster head is blunt, and is not beneficial to being stretched into a gap for cleaning.

4. The working part is preferably arranged in a fan shape, so that the size of the working part is reasonably reduced while the working part is provided with an arc edge, thereby reasonably reducing the weight of the working part and being beneficial to improving the operation hand feeling of a user. The clamping part is preferably arranged in a fan shape, so that the size of the clamping part is reasonably reduced while the matching area between the clamping part and the working part is ensured. Therefore, the whole weight of the steel wire head can be reasonably reduced, and the use experience of a user can be improved.

5. The rear end and the mounting of first splint and second splint clamp steel wire cluster head make steel wire cluster head and mounting keep stable in structure each other through the cooperation of first splint and second splint, improve the structural strength of steel wire cluster head, avoid the steel wire cluster head to take place the condition of deformation or skew because of the atress at the during operation, be favorable to guaranteeing the working property stability of steel wire cluster head.

6. The first shirt rim of first splint and the second shirt rim of second splint mutually support the rear end of pressing from both sides tight steel wire cluster head, rationally set up the structure that first splint and second splint cooperation pressed from both sides tight steel wire cluster head, guarantee that the rear end of steel wire cluster head can receive effectual positioning action under the cooperation of first splint and second splint, improve the structural stability of steel wire cluster head.

7. Each steel wire cluster head is arranged on the fixed plate in a matched mode with the fixed hole, and preferably, the steel wire cluster head is formed by twisting a steel wire bundle penetrating through the fixed hole after being folded in half, the forming structure of the steel wire cluster head is reasonably arranged, and the structural stability of the steel wire cluster head is guaranteed while the forming difficulty of the steel wire cluster head is reduced.

8. The edge covering piece clamps the inner edges of the first clamping plate, the second clamping plate and the fixing plate, so that the clamping strength of the first clamping plate and the second clamping plate to the fixing plate can be effectively improved through the edge covering piece, the structural stability of the working part can be improved, and the service life of the steel wire head can be prolonged.

9. The steel wire cluster head can extend along the corresponding radial direction of the arc edge back to the clamping part, and can also extend obliquely relative to the clamping part, namely, the steel wire cluster head can be arranged in parallel or obliquely relative to the clamping part, and the extending direction of the steel wire cluster head is reasonably arranged, so that the steel wire cluster head can meet the use requirement.

Drawings

FIG. 1 is an overall schematic of a steel spinneret according to an embodiment;

FIG. 2 is an exploded view of a steel wire head according to an embodiment;

FIG. 3 is a partial block diagram of a steel spinneret according to an embodiment;

FIG. 4 is a diagram of the whole machine of a reciprocating swing type electric tool according to an embodiment;

FIG. 5 is a partial block diagram of a reciprocating swing type power tool according to an embodiment;

FIG. 6 is a partial block diagram of a working assembly of a reciprocating swing type power tool according to an embodiment;

FIG. 7 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. 8 is an axial cross-sectional view of a portion of the construction of a working assembly in a reciprocating oscillating power tool according to an embodiment;

FIG. 9 is a diagram showing the configuration of the cooperation of a motor and a rotary member in a reciprocating swing type electric tool according to an embodiment;

FIG. 10 is a diagram showing the cooperation of a motor, a rotary member and a fork in a reciprocating swing type electric tool according to an embodiment;

fig. 11 is a schematic diagram showing the partial structure of the steel wire head in the second embodiment.

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 member, 141-rotating shaft, 142-rotating member, 143-shifting fork, 143 a-socket, 143 b-yoke, 200-long rod, 210-rod body, 220-adjusting sleeve, 300-handle assembly, 310-handle, 320-battery pack, 400-handpiece housing, 500-steel wire head, 510-clamping part, 511-clamping groove, 512-limiting hole, 520-working part, 521-arc edge, 522-wire cluster head, 523-first clamping plate, 5231-first skirt, 524-second clamping plate, 5241-second skirt, 5251-fixing plate, 5251-fixing hole, 526-binding member.

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 3, a wire head 500 for a reciprocating swing type electric tool according to an embodiment of the present utility model includes a clamping portion 510 and a working portion 520 which are relatively fixed, wherein the working portion 520 is provided with an arc edge 521 and a wire cluster head 522 on a side facing away from the clamping portion 510, and the wire cluster head 522 extends away from the clamping portion 510 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, the effective working range of the working part 520 is ensured, the steel wire cluster heads 522 are driven to realize the functions of weeding, removing moss, derusting 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 of the steel wire cluster heads 500 is higher due to the higher output frequency of the reciprocating swing type electric tool, so that the working 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. 2, the working part 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 the end of the wire cluster head 522 toward the clamping part 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 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 edge 521 is defined by combining the arc-shaped outer edge of the first clamping plate 523 and the arc-shaped outer edge of the second clamping plate 524. The first clamping plate 523 is provided with a first skirt 5231 at a front side facing away from the clamping portion 510, the second clamping plate 524 is provided with a second skirt 5241 at a front side facing away from the clamping portion 510, and the first skirt 5231 and the second skirt 5241 cooperate to clamp the rear end of the wire cluster head 52. 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 clamping portion 510 and the fixing plate 525 may be integrally formed.

In order to reasonably set the number of the wire cluster heads 522 in connection with fig. 3, a central angle α of the fan-shaped working portion 520 is reasonably set, and is 60 ° or more and 120 ° or less, in this embodiment, the central angle of the arc-shaped edge 521 is identical to the central angle α of the working portion 520. In the present embodiment, the center angle α of the working portion 520 is set to 90 °. It is understood that the center angle α of the 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 clamping portion 510 is configured as a fan shape, and the fan-shaped center angle θ of the clamping portion 510 is smaller than the fan-shaped center angle α of the working portion 520. In this embodiment, the fan-shaped center angle θ of the clamping portion 510 is preferably set to 50 °. It can be appreciated that the fan-shaped center angle θ of the clamping portion 510 may be set to be 40 °,45 °, 48 °,52 °, 55 °,60 ° or other reasonable sizes, so as to meet the clamping requirement of the spinneret 500. Of course, the fan-shaped center angle θ of the clamping portion 510 may be set in correspondence with the fan-shaped center angle α of the working portion 520.

Referring to fig. 3, the clamping portion 510 is provided with a clamping groove 511 and a limiting hole 512, the clamping groove 511 is substantially U-shaped and has an open rear end, and the limiting hole 512 is provided at an outer periphery of the clamping groove 511 and is provided with a plurality of limiting holes along a circumferential direction of the clamping groove 511.

In this embodiment, the clamping portion 510 is in a fan-shaped plate shape, and the front side is clamped between the first clamping plate 523 and the second clamping plate 524, the first clamping plate 523, the second clamping plate 524, the 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 clamping portion 510 in a different radial direction of the working portion 520, that is, the wire cluster heads 522 and the clamping portion 510 are arranged in a substantially aligned manner.

Referring to fig. 4, the present embodiment also provides a reciprocating swing type electric tool including a long rod 200, a working assembly 100 provided at a front end of the long rod 200, and a handle assembly 300 provided at a rear end of the long rod 200. The working assembly 100 has a motor 110, the wire head 500 described above, a clamping structure, and a transmission structure, and the motor 110 drives the working head to reciprocate in a working plane through the transmission structure and the clamping structure.

Referring to fig. 5, in this embodiment, the working assembly 100 further includes a handpiece housing 400, the motor 110, the clamping structure and the transmission structure are disposed inside the handpiece housing 400, and the wire head 500 is disposed outside the handpiece housing 400.

Referring to fig. 6, 7 and 8, the clamping structure includes an inner shaft 121 and an outer shaft 122 sleeved together, the inner shaft 121 can move back and forth along the axial direction relative to the outer shaft 122, an upper chuck 123 is arranged at the bottom end of the outer shaft 122, a lower chuck 124 positioned at the bottom of the upper chuck 123 is arranged 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 400 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 400, 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 400, 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. 9 and 10, 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 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 with respect 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 with respect 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. 6, 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 reciprocally swing left and right through the shifting fork 143, and the clamping structure drives the working head to reciprocally swing in a left plane and a right 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. 5, in this embodiment, the swing angle range λ of the working head is 3 ° to 10 °. Specifically, the 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 swing angle range λ is about 8 °. It will be appreciated that the swing angle range λ may be set to other reasonable magnitudes of 3 °,4 °,5 °,6 °, 7 °, 9 °,10 °, etc.

Referring to fig. 4, the handle assembly 300 includes a handle 310 and a battery pack 320, the handle 310 being fixed to the rear end of the long bar 200, 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 set in conformity with the shape 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 profile of the battery pack 320 may be larger than the profile of the handle 310 when the voltage of the battery pack 320 is high.

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 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.

When the weeding, moss removal, rust removal and other works are required, the steel wire head 500 is clamped on a machine body, the clamping part 510 moves forwards and backwards to enable the inner shaft 121 to be clamped into the clamping groove 511 and enable the limiting holes 512 to correspond to the limiting pins 127, the inner shaft 121 which resets upwards drives the lower clamping head 124 to move upwards, the lower clamping head 124 and the upper clamping head 123 are matched to clamp the clamping part 510 of the steel wire head 500, the limiting pins 127 are inserted into the corresponding limiting holes 512, the plane direction of the steel wire head 500 is consistent with the left plane and the right plane, and the working plane of the steel wire head 500 is consistent with the plane direction of the steel wire head.

During operation, the motor 110 drives the steel wire head 500 to reciprocate left and right through the transmission structure and the clamping structure, and the motor shaft of the motor 110 directly drives the rotating piece 142 to rotate at a high speed through the rotating shaft 141, the rotating piece 142 rotating at a high speed drives the steel wire head 500 to reciprocate left and right through the transmission structure and the clamping structure, the swing frequency of the steel wire head 500 is higher, the working efficiency of the steel wire head is also higher, and a speed reducing structure is not arranged between the motor 110 and the rotating piece 142, so that the weight of the working assembly 100 is lighter, and the use experience of a user is improved.

Example two

Referring to fig. 11, in the first embodiment, the working portion 520 further includes a binding member 526, where the binding member 526 is disposed on a side of the working portion 520 facing the clamping portion 510, and the binding member 526 simultaneously 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 portion 520 can be improved. The clamping portion 510 is located outside the first clamping plate 523 or the second clamping plate 524, and the clamping portion 510 and the working portion 520 are fixed together by a fastener.

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

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 steel wire head for reciprocating swing formula electric tool, includes relatively fixed clamping portion and working portion, its characterized in that, the working portion is equipped with arc border and wire cluster head in the one side that is away from clamping portion, and wire cluster head is extended and is distributed along the arc of arc border dorsad clamping portion and has a plurality ofly.

2. A steel wire head for a reciprocating swing electric tool according to claim 1, wherein the center angle of the arcuate rim is α,60 ° or more and 120 ° or less.

3. A steel wire head for a reciprocating swing type electric tool according to claim 1, wherein the end of the wire cluster head facing away from the clamping portion is tapered and has a taper angle β,45 ° β being less than or equal to 90 °.

4. A steel wire head for a reciprocating swing electric tool according to claim 1, wherein the working portion is in the shape of a sector ring; and/or the clamping part is in a sector shape.

5. The steel wire head for a reciprocating swing type electric tool according to claim 1, wherein the working portion comprises a fixing member, a first clamping plate and a second clamping plate, each wire cluster head is provided on the fixing member, the first clamping plate and the second clamping plate are respectively located at opposite sides of the fixing member and clamp the end portions of the wire cluster heads toward the clamping portion and the fixing member.

6. The steel wire head for a reciprocating swing type electric tool as claimed in claim 5, wherein the first clamping plate is provided with a first skirt edge at a front side facing away from the clamping portion, the second clamping plate is provided with a second skirt edge at a front side facing away from the clamping portion, and the first skirt edge and the second skirt edge cooperate to clamp an end portion of the wire cluster head facing toward the clamping portion.

7. The steel wire head for a reciprocating swinging type electric tool as claimed in claim 5, wherein the fixing member is a fixing plate provided with a plurality of fixing holes which are distributed at intervals along an arc direction and are used for fixing the steel wire cluster heads, and each steel wire cluster head is arranged on the fixing plate by being matched with the fixing hole.

8. The spinneret for a reciprocating swing type electric tool as claimed in claim 6, wherein the wire cluster head is formed by twisting a wire bundle passing through the fixing hole in half.

9. The spinneret for a reciprocating swing electric tool according to claim 6, wherein the working portion includes a binding member provided at a side of the working portion facing the clamping portion and clamping inner edges of the first clamping plate, the second clamping plate and the fixing plate.

10. The steel wire head for a reciprocating swing type electric tool according to claim 1, wherein the wire cluster heads extend along corresponding radial directions of the arc-shaped edges away from the clamping portion; or the steel wire cluster head extends obliquely relative to the clamping part.