Replaceable electric tool

Abstract

The utility model provides a replaceable electric tool, which belongs to the technical field of electric tools, and comprises a mounting seat provided with a driving element and a rotatable driving shaft, the driving shaft is connected with the driving element, the driving element can drive the driving shaft to rotate, and the driving shaft is provided with a first positioning part; the execution seat is detachably connected with the mounting seat, the execution seat is provided with a rotatable linkage shaft and a rotatable tool head, the tool head is connected with the linkage shaft, the linkage shaft is provided with a second positioning part, and when the execution seat is connected with the mounting seat, the second positioning part circumferentially positions the first positioning part. The utility model has the beneficial effects that when the execution seat is connected with the mounting seat, the second positioning part circumferentially positions the first positioning part, so that the driving element can drive the driving shaft to rotate while driving the tool head to rotate through the linkage shaft, and various different functions can be realized by detaching and replacing different tool heads.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric tools and relates to a replaceable electric tool. Background Art

[0002] The current handheld power tools have relatively simple functions. Generally, handheld power tools have a single function. For example, the invention patent with application number CN201810358201.7 provides a lawn mower, including: a longitudinally extending extension rod; a working head; a handle assembly for an operator to operate, the handle assembly including a first handle and a second handle connected to the second end of the extension rod; the second handle includes at least two first positions, each of the at least two first positions is used to adjust the second handle to provide a leaning support for the operator's arm or elbow; the first handle includes at least two third positions, any one of the at least two third positions of the first handle can be used in conjunction with any one of the at least two first positions of the second handle to achieve single-handed operation of the lawn mower.

[0003] To sum up, in the existing technical solutions, the head of the handheld power tool cannot be replaced, so it can only realize a single function such as mowing the grass. If other functions such as sweeping the floor are required, other corresponding handheld power tools need to be purchased again, which is not only costly, but also occupies more space and has a large room for improvement. Summary of the invention

[0004] The purpose of the utility model is to propose a replaceable electric tool in view of the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a replaceable electric tool, comprising:

[0006] A mounting seat, which is provided with a driving element and a rotatable driving shaft, wherein the driving shaft is connected to the driving element, the driving element can drive the driving shaft to rotate, and the driving shaft is provided with a first positioning portion;

[0007] An execution seat is detachably connected to the mounting seat, and the execution seat is provided with a rotatable linkage shaft and a rotatable tool head. The tool head is connected to the linkage shaft, and the linkage shaft is provided with a second positioning portion. When the execution seat is connected to the mounting seat, the second positioning portion circumferentially positions the first positioning portion, so that the driving element can drive the driving shaft to rotate and at the same time drive the tool head to rotate through the linkage shaft.

[0008] In the above-mentioned replaceable electric tool, the linkage shaft is further provided with a receiving cavity, and the driving shaft is inserted into the receiving cavity when the execution seat is connected with the mounting seat.

[0009] In the above-mentioned replaceable electric tool, the first positioning portion is configured as a positioning protrusion distributed along the circumference of the drive shaft, and the second positioning portion is configured as a positioning recess distributed along the circumference of the accommodating cavity. When the drive shaft is inserted into the accommodating cavity, the positioning protrusion is inserted into the positioning recess.

[0010] In the above-mentioned replaceable electric tool, it also includes a locking component, which includes a fixed seat and a movable seat, the fixed seat is connected to the execution seat, the movable seat is movably connected to the mounting seat, and the movable seat can be moved to a locking position or an unlocking position. When the movable seat is located at the locking position, the execution seat is fixed relative to the mounting seat, and when the movable seat is located at the unlocking position, the execution seat can be separated from the mounting seat.

[0011] In the above-mentioned replaceable electric tool, the movable seat is rotatably connected to the mounting seat, the fixed seat is provided with a first locking block and an unlocking channel distributed along its own axial direction, and the movable seat is provided with a second locking block, the second locking block can move along the unlocking channel and can be rotated from the upper part of the unlocking channel to the top of the first locking block, when the second locking block is rotated to the top of the first locking block, the movable seat is located in the locking position, and when the second locking block is rotated to the upper part of the unlocking channel, the movable seat is located in the unlocking position.

[0012] In the above-mentioned replaceable electric tool, the locking assembly further includes a reset torsion spring, both ends of which are respectively connected to the mounting seat and the movable seat, and the reset torsion spring can drive the movable seat to move from the unlocking position to the locking position.

[0013] In the above-mentioned replaceable electric tool, the first locking block has a first inclined surface, the second locking block has a second inclined surface, and the first inclined surface and the second inclined surface can move along the inclined surface direction of each other.

[0014] In the above-mentioned replaceable electric tool, the locking assembly further includes an adjusting dial button, the mounting seat is provided with a toggle slot, the adjusting dial button is movably arranged in the toggle slot, and the movable seat is connected to the adjusting dial button.

[0015] In the above-mentioned replaceable electric tool, the tool head is a grass trimmer head, a seam cleaning head or a floor sweeping head.

[0016] In the above-mentioned replaceable electric tool, it also includes a handle and a battery, the handle is connected to the mounting seat, the battery is connected to the handle, the driving element is electrically connected to the battery, and the battery can supply power to the driving element.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. When the actuator is connected to the mounting seat, the second positioning portion circumferentially positions the first positioning portion, so that the driving element drives the driving shaft to rotate and the tool head can be driven to rotate through the linkage shaft. Therefore, a variety of different functions can be achieved by disassembling and replacing different tool heads.

[0019] 2. When the drive shaft is inserted into the accommodating cavity, the positioning protrusions distributed along the circumference of the drive shaft are inserted into the positioning recesses distributed along the circumference of the accommodating cavity, thereby preventing the drive shaft from slipping when driving the linkage shaft to rotate, thereby ensuring transmission efficiency.

[0020] 3. Lock the fixed seat and the mounting seat through the locking assembly so that the two can be locked when connected together to prevent the drive shaft from being disconnected from the linkage shaft. When the movable seat is in the locked position, the actuator seat is fixed relative to the mounting seat. When the movable seat is in the unlocked position, the actuator seat can be separated from the mounting seat.

[0021] 4. The second locking block can move in the unlocking channel along the axial direction of the fixed seat and move from the lower part of the unlocking channel to the upper part of the unlocking channel, and can be rotated from the upper part of the unlocking channel to the upper part of the first locking block so that the movable seat is located in the locking position. When the second locking block is rotated from the upper part of the first locking block to the upper part of the unlocking channel, the movable seat is located in the unlocking position, and can move in the unlocking channel along the axial direction of the fixed seat and move from the upper part of the unlocking channel to the lower part of the unlocking channel.

[0022] 5. The reset torsion spring can drive the movable seat to move from the unlocked position to the locked position, thereby ensuring that the locking assembly is locked without being affected by external forces, so that the fixed seat and the mounting seat can be locked when connected together.

[0023] 6. The first inclined surface is located at the upper part of the first locking block, and the second inclined surface is located at the lower part of the second locking block. When the drive shaft is inserted into the accommodating cavity, even if the second locking block is not aligned with the unlocking channel, its own position can be adjusted by the guidance of the first inclined surface and the second inclined surface to align with the unlocking channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of the first embodiment of the present utility model.

[0025] Figure 2 It is a schematic structural diagram of the mounting base of the first embodiment of the utility model.

[0026] Figure 3 It is a top view of the mounting base of the first embodiment of the utility model.

[0027] Figure 4 for Figure 3Cross-sectional view from AA perspective.

[0028] Figure 5 It is a structural schematic diagram of the execution seat of the first embodiment of the utility model.

[0029] Figure 6 This is a schematic structural diagram of the second embodiment of the present utility model.

[0030] Figure 7 This is a schematic structural diagram of the third embodiment of the present utility model.

[0031] In the figure, 100, mounting seat; 110, driving element; 120, driving shaft; 121, positioning protrusion; 130, toggle groove; 200, execution seat; 210, linkage shaft; 211, accommodating cavity; 212, positioning recess; 220a, grass trimmer head; 220b, seam cleaning head; 220c, sweeping head; 310, fixing seat; 311, first locking block; 312, unlocking channel; 313, first inclined plane; 320, movable seat; 321, second locking block; 322, second inclined plane; 330, adjusting dial; 400, handle; 500, battery. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0038] Embodiment 1

[0039] like Figure 1-Figure 5 As shown, a replaceable electric tool includes: a mounting base 100 and an execution base 200.

[0040] The mounting seat 100 is provided with a driving element 110 and a rotatable driving shaft 120 . The driving shaft 120 is connected to the driving element 110 . The driving element 110 can drive the driving shaft 120 to rotate. The driving shaft 120 is provided with a first positioning portion.

[0041] Among them, the execution seat 200 is detachably connected to the mounting seat 100, and the execution seat 200 is provided with a rotatable linkage shaft 210 and a rotatable tool head. The tool head is connected to the linkage shaft 210, and the linkage shaft 210 is provided with a second positioning portion. When the execution seat 200 is connected to the mounting seat 100, the second positioning portion circumferentially positions the first positioning portion, so that the driving element 110 drives the driving shaft 120 to rotate and can drive the tool head to rotate through the linkage shaft 210.

[0042] In this embodiment, when the execution seat 200 is connected to the mounting seat 100, the second positioning portion circumferentially positions the first positioning portion, so that the driving element 110 drives the driving shaft 120 to rotate and can drive the tool head to rotate through the linkage shaft 210. Therefore, a variety of different functions can be achieved by disassembling and replacing different tool heads.

[0043] Specifically, the tool head shown in the figure is a grass trimmer head 220a.

[0044] like Figure 1-Figure 5 As shown, on the basis of the above embodiment, the linkage shaft 210 is further provided with a receiving cavity 211 , and the driving shaft 120 is inserted into the receiving cavity 211 when the execution seat 200 is connected to the mounting seat 100 .

[0045] In this embodiment, when the actuator 200 is connected to the mounting base 100 , the drive shaft 120 is inserted into the accommodating cavity 211 , so that when the drive shaft 120 drives the linkage shaft 210 to rotate, it can be wrapped and protected by the linkage shaft 210 , and the connection is more reliable.

[0046] like Figure 1-Figure 5 As shown, based on the above embodiment, the first positioning portion is configured as a positioning protrusion 121 distributed circumferentially along the drive shaft 120, and the second positioning portion is configured as a positioning recess 212 distributed circumferentially along the accommodating cavity 211, and when the drive shaft 120 is inserted into the accommodating cavity 211, the positioning protrusion 121 is inserted into the positioning recess 212.

[0047] Specifically, there may be multiple and equal numbers of the positioning protrusions 121 and the positioning recesses 212 , and each positioning protrusion 121 is disposed in one-to-one correspondence with each positioning recess 212 .

[0048] In this embodiment, when the drive shaft 120 is inserted into the accommodating cavity 211, the positioning protrusions 121 distributed circumferentially along the drive shaft 120 are inserted into the positioning recesses 212 distributed circumferentially along the accommodating cavity 211, thereby preventing the drive shaft 120 from slipping when driving the linkage shaft 210 to rotate, thereby ensuring transmission efficiency.

[0049] like Figure 1-Figure 5 As shown, on the basis of the above embodiment, it also includes a locking component, which includes a fixed seat 310 and a movable seat 320. The fixed seat 310 is connected to the execution seat 200, and the movable seat 320 can be movably connected to the mounting seat 100. The movable seat 320 can be moved to a locked position or an unlocked position. When the movable seat 320 is located at the locked position, the execution seat 200 is fixed relative to the mounting seat 100, and when the movable seat 320 is located at the unlocked position, the execution seat 200 can be separated from the mounting seat 100.

[0050] In this embodiment, the fixed seat 310 and the mounting seat 100 are locked by a locking assembly so that the two can be locked when connected together to prevent the drive shaft 120 from being disconnected from the linkage shaft 210. When the movable seat 320 is in the locked position, the execution seat 200 is fixed relative to the mounting seat 100, and when the movable seat 320 is in the unlocked position, the execution seat 200 can be separated from the mounting seat 100.

[0051] Specifically, the locking assembly further includes an adjusting button 330 , the mounting seat 100 is provided with a toggle slot 130 , the adjusting button 330 is movably disposed in the toggle slot 130 , and the movable seat 320 is connected to the adjusting button 330 .

[0052] like Figure 1-Figure 5 As shown, on the basis of the above embodiment, the movable seat 320 is rotatably connected to the mounting seat 100, the fixed seat 310 is provided with a first locking block 311 and an unlocking channel 312 distributed along its own axial direction, and the movable seat 320 is provided with a second locking block 321, the second locking block 321 can move along the unlocking channel 312 and can be rotated from the upper part of the unlocking channel 312 to the upper part of the first locking block 311, when the second locking block 321 is rotated to the upper part of the first locking block 311, the movable seat 320 is located in the locking position, and when the second locking block 321 is rotated to the upper part of the unlocking channel 312, the movable seat 320 is located in the unlocking position.

[0053] In this embodiment, the second locking block 321 can move in the unlocking channel 312 along the axial direction of the fixed seat 310 and move from the lower part of the unlocking channel 312 to the upper part of the unlocking channel 312, and can be rotated from the upper part of the unlocking channel 312 to the upper part of the first locking block 311 so that the movable seat 320 is located in the locked position. When the second locking block 321 is rotated from the upper part of the first locking block 311 to the upper part of the unlocking channel 312, the movable seat 320 is located in the unlocking position, and can move in the unlocking channel 312 along the axial direction of the fixed seat 310 and move from the upper part of the unlocking channel 312 to the lower part of the unlocking channel 312.

[0054] like Figure 1-Figure 5 As shown, based on the above embodiment, the locking assembly also includes a reset torsion spring (not shown in the figure), and the two ends of the reset torsion spring are respectively connected to the mounting seat 100 and the movable seat 320, and the reset torsion spring can drive the movable seat 320 to move from the unlocking position to the locking position.

[0055] In this embodiment, the return torsion spring can drive the movable seat 320 to move from the unlocked position to the locked position, thereby ensuring that the locking assembly maintains the locked state without being affected by external forces, so that the fixed seat 310 can be locked when connected with the mounting seat 100.

[0056] like Figure 1-Figure 5 As shown, based on the above embodiment, the first locking block 311 has a first inclined surface 313, and the second locking block 321 has a second inclined surface 322, and the first inclined surface 313 and the second inclined surface 322 can move along the inclined surface direction of each other.

[0057] In this embodiment, the first inclined surface 313 is located at the upper part of the first locking block 311, and the second inclined surface 322 is located at the lower part of the second locking block 321. When the drive shaft 120 is inserted into the accommodating cavity 211, even if the second locking block 321 is not aligned with the unlocking channel 312, it can adjust its own position through the guidance of the first inclined surface 313 and the second inclined surface 322, so as to align with the unlocking channel 312.

[0058] like Figure 1-Figure 5 As shown, based on the above embodiment, it also includes a handle 400 and a battery 500, the handle 400 is connected to the mounting base 100, the battery 500 is connected to the handle 400, the driving element 110 is electrically connected to the battery 500, and the battery 500 can supply power to the driving element 110.

[0059] In this embodiment, the battery 500 can supply power to the driving element 110 so that the driving element 110 can drive the driving shaft 120 to rotate and can also drive the tool head to rotate through the linkage shaft 210 .

[0060] Embodiment 2

[0061] like Figure 6 As shown, other structures of the second embodiment are the same as those of the first embodiment, except that the tool head is a seam cleaning head 220b.

[0062] Embodiment 3

[0063] like Figure 7 As shown, other structures of the third embodiment are the same as those of the first embodiment, except that the tool head is a sweeper head 220c.

Claims

1. A replaceable electric tool, characterized in that: include: A mounting seat, which is provided with a driving element and a rotatable driving shaft, wherein the driving shaft is connected to the driving element, the driving element can drive the driving shaft to rotate, and the driving shaft is provided with a first positioning portion; An execution seat is detachably connected to the mounting seat, and the execution seat is provided with a rotatable linkage shaft and a rotatable tool head. The tool head is connected to the linkage shaft, and the linkage shaft is provided with a second positioning portion. When the execution seat is connected to the mounting seat, the second positioning portion circumferentially positions the first positioning portion, so that the driving element can drive the driving shaft to rotate and at the same time drive the tool head to rotate through the linkage shaft.

2. A replaceable electric tool as claimed in claim 1, characterized in that: The linkage shaft is also provided with a receiving cavity, and the driving shaft is inserted into the receiving cavity when the execution seat is connected with the mounting seat.

3. A replaceable electric tool as claimed in claim 2, characterized in that: The first positioning portion is configured as a positioning protrusion distributed along the circumference of the drive shaft, and the second positioning portion is configured as a positioning recess distributed along the circumference of the accommodating cavity. When the drive shaft is inserted into the accommodating cavity, the positioning protrusion is inserted into the positioning recess.

4. A replaceable electric tool as claimed in claim 1, characterized in that: It also includes a locking component, which includes a fixed seat and a movable seat, the fixed seat is connected to the execution seat, the movable seat is movably connected to the mounting seat, the movable seat can be moved to a locking position or an unlocking position, when the movable seat is located at the locking position, the execution seat is fixed relative to the mounting seat, and when the movable seat is located at the unlocking position, the execution seat can be separated from the mounting seat.

5. A replaceable electric tool as claimed in claim 4, characterized in that: The movable seat is rotatably connected to the mounting seat, the fixed seat is provided with a first locking block and an unlocking channel distributed along its axial direction, and the movable seat is provided with a second locking block, the second locking block can move along the unlocking channel and can be rotated from the upper part of the unlocking channel to the top of the first locking block, when the second locking block is rotated to the top of the first locking block, the movable seat is located in the locking position, and when the second locking block is rotated to the upper part of the unlocking channel, the movable seat is located in the unlocking position.

6. A replaceable electric tool as claimed in claim 5, characterized in that: The locking assembly further includes a return torsion spring, both ends of which are respectively connected to the mounting seat and the movable seat, and the return torsion spring can drive the movable seat to move from the unlocking position to the locking position.

7. A replaceable electric tool as claimed in claim 6, characterized in that: The first locking block has a first inclined surface, and the second locking block has a second inclined surface. The first inclined surface and the second inclined surface can move along the inclined surface direction of each other.

8. A replaceable electric tool as claimed in claim 5, characterized in that: The locking assembly also includes an adjusting dial button, the mounting seat is provided with a toggle slot, the adjusting dial button is movably arranged in the toggle slot, and the movable seat is connected to the adjusting dial button.

9. A replaceable electric tool as claimed in claim 1, characterized in that: The tool head is a grass trimmer head, a seam cleaning head or a floor sweeper head.

10. The replaceable electric tool according to claim 1, characterized in that: It also includes a handle and a battery. The handle is connected to the mounting seat, the battery is connected to the handle, the driving element is electrically connected to the battery, and the battery can supply power to the driving element.

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