WO2022068086A1 - Handheld tool machine and handheld electric tool having same - Google Patents
Handheld tool machine and handheld electric tool having same Download PDFInfo
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- WO2022068086A1 WO2022068086A1 PCT/CN2020/137026 CN2020137026W WO2022068086A1 WO 2022068086 A1 WO2022068086 A1 WO 2022068086A1 CN 2020137026 W CN2020137026 W CN 2020137026W WO 2022068086 A1 WO2022068086 A1 WO 2022068086A1
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- unit
- tool head
- tool
- locking
- head
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- 230000005540 biological transmission Effects 0.000 claims description 105
- 238000003825 pressing Methods 0.000 claims description 40
- 238000009434 installation Methods 0.000 claims description 27
- 238000003780 insertion Methods 0.000 claims description 18
- 230000037431 insertion Effects 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 12
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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- 238000010413 gardening Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
Definitions
- the present invention relates to the technical field of functional tools, in particular to a hand-held power tool and a hand-held electric tool having the same.
- the present invention provides a hand-held power tool, comprising a main body casing, a drive device arranged in the main body casing, and the main body casing is provided with a tool head for form-locking and/or force-locking A tool head mounting part that is connected together;
- the tool head mounting part includes at least a first mounting assembly and a second mounting assembly, when the tool head including the first locking assembly is mounted on the tool head mounting part, the tool head A positive and/or non-positive connection can be achieved by means of the first mounting component and the first locking component, so that the drive device can drive the tool head to work with a first maximum torsional strength;
- the tool head When a tool head comprising a second locking member is mounted on the tool head mounting portion, the tool head can achieve a positive and/or non-positive connection by means of the second mounting member and the second locking member So that the driving device can drive the tool head to work with a second maximum torsional strength greater than the first maximum torsional strength.
- the first mounting assembly is configured as a first snap unit, and when a tool head including a first locking assembly configured as a second snap unit is mounted to the tool head mounting portion When the tool head is turned on, the tool head can be snap-fitted by means of the first clamping unit and the second clamping unit, so that the driving device can drive the tool head with the first maximum torque resistance strength Work.
- the first clamping unit includes a limit slot and at least one stopper, the limit slot and the at least one stopper are arranged at intervals along the perimeter direction of the host casing, the The limiting groove is used for cooperating with the limiting platform of the second clamping unit, and the stopper is used for cooperating with the clamping member of the second clamping unit.
- the stopper includes a pressing unit and a telescopic unit, and when the pressing unit is pressed, the telescopic unit is compressed under the pressing force of the pressing unit, so that the stopper can push the card
- the connecting piece is blocked and defined on the tool head mounting portion, or the blocking piece releases the restriction on the clipping piece, so that the clipping piece is disengaged from the tool head mounting portion.
- the pressing unit includes a pressing portion, a avoiding portion and a blocking portion, one end of the avoiding portion is connected with the pressing portion, and the other end of the avoiding portion is connected with the blocking portion.
- the second mounting assembly is configured as a first locking unit, when a tool head including a second locking assembly configured as a second locking unit is mounted to the tool head mounting portion
- the tool head can be latched by means of the first locking unit and the second locking unit, so that the drive device can drive the tool head with the second maximum torque resistance Work.
- the first locking unit includes at least one locking platform and at least one inserting platform, and the locking platform is used to cooperate with the first overlapping member of the second locking unit, so as to facilitate the first overlapping
- the locking platform is used to cooperate with the first overlapping member of the second locking unit, so as to facilitate the first overlapping
- the driving device includes a driving unit and a transmission unit, and when the tool head including the transmission connecting piece is mounted on the tool head mounting portion, the driving unit is coupled to the transmission connecting piece through the transmission unit, So that the transmission unit drives the transmission connecting piece to rotate under the driving of the driving unit, so that the driving device drives the tool head to work.
- the drive unit is configured as a motor
- the transmission unit includes a first gear, a linkage gear, a transmission element and a second gear
- the output shaft of the motor rotates coaxially with the first gear
- the linkage includes an input gear and an output gear that rotate coaxially, the first gear meshes with the input gear, and the output gear meshes with the second gear; the transmission element rotates coaxially with the second gear,
- the transmission element is used for coupling with the transmission connection.
- At least one force-applying surface is configured on the transmission element, and a force-receiving surface corresponding to the force-applying surface is configured on the transmission connecting piece; when the tool head is installed on the When the tool head mounting part is installed, the force applying surface of the transmission element cooperates with the force receiving surface of the transmission connecting piece, so that when the hand-held power tool provides a driving force for the tool head, the transmission The element rotates and the force-applying surface can apply a thrust force to the force-receiving surface, so as to push the transmission connecting piece to drive the tool head to work.
- the present invention also provides a hand-held power tool, the hand-held power tool includes a tool head and the above-mentioned hand-held power tool, the tool head includes a first locking assembly and/or a second locking assembly .
- the tool head is at least one of a blower head or an electric drill head or a mixer head or a hedge head or a brush head or a circular saw head or a lawn mower head.
- the tool head includes a cutting head, the cutting head includes a connecting seat, a transmission connecting piece and an execution unit, the connecting seat is provided with a first locking component, and the execution unit It includes a first actuator and a second actuator, characterized in that one end of the second actuator is configured to include a first fixed end portion of an installation end surface, and the first fixed end portion is detachably connected to the connection the bottom of the seat so that the mounting end surface is formed as the bottom surface of the tool head;
- the connecting seat is locked and connected with the first mounting assembly on the tool head mounting portion through the first locking assembly, and the The first actuator realizes power coupling with the transmission unit of the driving device through the transmission connection, so that the driving device drives the first actuator to reciprocate relative to the second actuator with the first maximum torsional strength sports.
- the tool bit includes an electric drill bit
- the electric drill bit includes a connection seat, a drill bit and at least one connection unit, and at least one connection unit is provided on the connection seat, and the connection unit is for the purpose of
- the rotation of the drill bit includes at least one transmission connection for power coupling the drill bit with the transmission unit of the hand-held power tool
- the connection unit also includes a tool head mounting portion for connecting with the hand-held power tool.
- a second locking assembly arranged in a form-locking and/or force-locking connection, when the power drill is mounted on the tool bit mounting part via a connecting seat
- the second locking assembly is in locking connection with the second mounting assembly on the tool head mounting part, so that the drive connecting piece and the drive unit of the drive device are connected to each other in a rotationally fixed manner.
- the second locking assembly is configured as a second locking unit, and the second locking unit includes a first overlapping member and a second overlapping member, and the first overlapping member includes at least a hasp and a second overlapping member.
- a rotating piece, one end of the buckle is provided with a boss for overlapping with the buckle platform of the first locking unit, the other end of the buckle is rotatably connected with the rotating piece, and the rotating piece is rotatably connected
- the second overlapping member is configured as a snap ring, including an outer snap ring and an insertion hole opened on the outer snap ring, the insertion hole is used for connecting with the first lock
- the insertion platform of the blocking unit is matched to realize that the insertion platform is blocked and limited in the socket, or the socket is detached from the socket.
- the present invention has the following beneficial effects:
- the hand-held power tool provided by the present invention realizes matching with tool heads with different working torques by providing at least two connection modes, so that the power tool can drive different tool heads to work with different torsional strengths, and the multiple connection modes provide It can realize the free and portable switching of tool heads, realize the diversification of tool functions, and meet the different needs of customers;
- the hand-held power tool can be selectively detachably connected to the tool head, the hand-held power tool can be split into two parts, the hand-held power tool and the tool head, and then stored or transported separately, so that the The tool occupies a small space, and the storage and transportation are more flexible and changeable, which is convenient for the operator to store or transport the tool.
- 1 is a schematic structural diagram of the hand-held power tool described in the application.
- FIG. 2 is a partial structural schematic diagram of the hand-held power tool described in the application.
- FIG. 3 is a schematic structural diagram of the driving device described in the application.
- FIG. 5 is a schematic structural diagram of a tool head described in the present application.
- Fig. 6 is the structural schematic diagram of another angle of the tool head shown in Fig. 5;
- FIG. 7 is a schematic structural diagram of the power tool including the tool head of FIG. 5 according to the present application.
- FIG. 8 is a schematic structural diagram of another tool head described in the present application.
- Fig. 9 is the structural schematic diagram of the first overlapping member in the tool head shown in Fig. 8;
- FIG. 10 is a schematic diagram of the structure of the power tool including the tool head of FIG. 7 according to the present application
- Figure 11 is a cross-sectional view of Figure 10
- Figure 12 is an enlarged view at I in Figure 11;
- 1-host housing 11-tool head mounting part, 111-first side plate, 112-first top plate, 113-first bottom plate, 12-operating handle, 13-first installation component, 131-limiting groove, 132-stopper, 1321-pressing unit, 13211-pressing part, 13212-evacuation part, 13213-stopping part, 1322-telescopic unit, 14-second installation component, 141-buckle table, 142-insertion table, 15 - support housing, 151 - second side panel, 152 - second top panel, 153 - second bottom panel,
- 2-connecting seat 21-first locking component, 211-limiting platform, 212-clicking piece, 22-second locking component, 221-first lap joint, 2211-buckle, 2212-rotating piece, 2213 - connector, 222 - second lap,
- 3-drive device 31-drive unit, 32-transmission unit, 321-first gear, 322-second gear, 323-linking gear, 3231-input gear, 3232-output gear, 324-transmission element;
- the present invention provides a hand-held power tool 100 as shown in Figs.
- the housing 1 is provided with a tool head mounting portion 11 that facilitates the form-locking and/or force-locking connection of the tool head 200 as shown in FIGS. 5 to 7 or 8 to 12;
- the tool head mounting portion 11 at least includes the first A mounting member 13 and a second mounting member 14, when the tool head 200 including the first locking member 21 is mounted on the tool head mounting portion 11, the tool head 200 can realize the shape by means of the first mounting member 13 and the first locking member 21 a locking and/or non-positive connection so that the drive device 3 can drive the tool head 200 with a first maximum torsional strength;
- the tool head 200 including the second locking assembly 22 When the tool head 200 including the second locking assembly 22 is mounted on the tool head mounting portion 11 , the tool head 200 can achieve a positive and/or non-positive connection by means of the second mounting assembly 14 and the second locking assembly 22 for actuation
- the device 3 can drive the tool head 200 to work with a second maximum torsional strength greater than the first maximum torsional strength.
- the tool head 200 includes at least one of a blower head, a ground drill head, a mixer head, a hedge head, a brush head, a circular saw head, and a mower head.
- the hand-held power tool 100 shown in FIG. 1 to FIG. 4 and the tool head 200 shown in FIG. 5 are taken as examples to specifically describe the specific structure of the tool.
- the hand-held power tool 100 includes a main body casing 1 and a drive device 3 located in the main body casing 1 .
- the main body casing 1 includes a The operating handle 12 to be held and the tool bit mounting portion 11 extending toward the other end of the main body casing 1 .
- the tool head mounting portion 11 includes a first side plate 111 and a first top plate 112 and a first bottom plate 113 disposed at both ends of the first side plate 111 .
- the first side plate 111 is a curved surface.
- the tool head mounting portion 11 is used for mounting the tool head 200 shown in FIG. 5 .
- the tool head mounting portion 11 is provided with a first mounting assembly 13 and a second mounting assembly 14 .
- the first mounting assembly 13 is configured as a first clamping unit, and the first clamping unit includes a limit groove 131 and at least one stopper 132 , and the limit groove 131 and the at least one stopper 132 are along the circumference of the host casing 1 . Long direction interval setting.
- there are two stoppers 132 including a first stopper and a second stopper.
- the limiting groove 131 , the first stopper and the second stopper may be in the circumferential direction of the main body casing 1 .
- the upper two are arranged at an interval of 120°.
- the limiting groove 131 is disposed on the first top plate 112 of the main body casing 1 and extends in a direction away from the first top plate 112 .
- the limiting slot 131 is an oblique hole with a certain arc.
- the stopper 132 includes a pressing unit 1321 and a telescopic unit 1322. When an external force is applied to the pressing unit 1321, the telescopic unit 1322 is compressed under the pressing force of the pressing unit 1321.
- the tool head after installation can be supported by the installation point and evenly stressed, The force stability of the main body casing 1 can be improved.
- a limit groove with a certain inclination is provided, which plays the role of a foolproof element, avoids the wrong installation of the tool head and the tool head installation part, and improves the installation and use safety.
- the second mounting assembly 14 is configured as a first locking unit for enabling the actuation of the tool head 200 including the second locking assembly 22 .
- first mounting assembly 13 and the second mounting assembly 14 are arranged on the tool head mounting portion 11, the structures in the first mounting assembly 13 and the structures in the second mounting assembly 14 are staggered to avoid When the tool bit 200 is mounted on the tool bit mounting portion 11, interference occurs.
- the mowing head includes a connecting seat 2 , a transmission connecting piece 4 and an execution unit 5
- the connecting seat 2 is provided with a first locking assembly 21
- the execution unit 5 includes a first execution member 51 and a second execution member 52
- one end of the second execution member 52 is configured to include a first fixed end portion 521 of an installation end surface, and the first fixed end portion 521 Removably connected to the bottom of the connecting seat 2 so that the mounting end surface is formed as the bottom surface of the tool head 200;
- the connecting seat 2 is connected to the first mounting assembly 13 on the tool head mounting portion 11 through the first locking assembly 21 .
- Locking connection specifically, the first locking assembly 21 is configured as a second snap unit, when the tool head 200 including the first locking assembly 21 is mounted on the tool head mounting part 11, the tool head 200 can use the first locking
- the first actuator 51 realizes the power coupling with the transmission unit 32 of the driving device 3 through the transmission connecting piece 4, so that the driving device 3 uses the first
- the maximum torsional strength drives the first actuator 51 to reciprocate relative to the second actuator 52 .
- the first maximum torque resistance refers to that the driving device 3 drives the tool head 200 from 0 to the first maximum torque resistance under the premise that the hand-held power tool and the tool head 200 are not loosened when the hand-held power tool is working normally. It can operate within the strength range, preferably, the first maximum torsional strength can be 0 ⁇ 5N. m.
- the second clamping unit includes a limit stage 211 and at least one clamping piece 212 .
- there are two clamping pieces 212 including the first clamping piece 212 .
- the clamping piece and the second clamping piece, the limiting platform 211 is matched with the limiting groove 131 of the first clamping unit, the first clamping piece is matched with the first stopper of the first clamping unit, and the second clamping piece The piece is matched with the second stop piece of the first clamping unit.
- the compression unit 1322 can be compressed by pressing the pressing unit 1321 of the first stopper and the second stopper, so that the stopper 132 can block and limit the clip 212 on the tool head mounting portion 11, or , the stopper 132 limits the contact of the engaging element 212, so that the engaging element 212 is disengaged from the tool head mounting portion 11, so that the first engaging element can be connected to the second engaging element or detached from the second engaging element , and after the pressing force disappears, the reset after the first snap unit and the second snap unit are snap-connected or the reset after the detachment is realized.
- the first clamping unit and the second clamping unit are used to realize the clamping and cooperation of the tool head and the tool head mounting part.
- the structure is simple, the installation and disassembly are convenient, and the rapid installation and disassembly of the tool head can be realized.
- the professional requirements of the user are low, and it can be tried out for a large number of users.
- a supporting casing 15 is further provided inside the main body casing 1 , and the supporting casing 15 includes a second side plate 151 , and a second top plate 152 and a second bottom plate 153 disposed at both ends of the second side plate 151 .
- the second side plate 151 is a curved surface.
- One end of the telescopic unit 1322 is connected to the pressing unit 1321 , the other end of the telescopic unit 1322 is connected to the support housing 15 , and the other end of the pressing unit 1321 is suspended.
- the pressing unit 1321 includes a pressing portion 13211 , an avoidance portion 13212 and a stop portion 13213 .
- One end of the avoidance portion 13212 is connected to the pressing portion 13211
- the other end of the avoidance portion 13211 is connected to the stopper portion 13213 .
- the first side plate 111 includes a first through hole and a second through hole.
- the connection end of the pressing portion 13211 , the connection end of the stop portion 13213 and the avoidance portion 13212 are all disposed between the host casing 1 and the support casing 15 .
- the non-connecting end of the pressing portion 13211 protrudes out of the first through hole, the non-connecting end of the pressing portion 13211 is in clearance fit with the first through hole, the non-connecting end of the blocking portion 13213 protrudes from the second through hole, and the non-connecting end of the blocking portion 13213 extends out of the second through hole.
- the connection end is in clearance fit with the second through hole.
- the first side plate 111 may only include the first through hole
- the connecting end of the pressing portion 13211 is disposed between the main body casing 1 and the supporting casing 15 , the non-connecting end of the pressing portion 13211 protrudes from the first through hole, and the end of the avoidance portion 13212 connected to the pressing portion 13211 is disposed in the main body casing 1 Between it and the support housing 15 , one end of the avoidance portion 13212 connected to the blocking portion 13213 protrudes out of the first top plate 112 .
- the first installation assembly 13 is formed by the limiting groove 131 , the first stopper and the second stopper, and the above structure of the first stopper and the second stopper is only a preferred solution, in other feasible solutions, the first installation component 13 may also include a limit groove 131 and a protrusion, and the first locking component 21 is designed to include a boss that cooperates with the limit groove 131 and a protrusion that cooperates with the limit groove 131 Snap to realize the snap connection between the first installation component 13 and the first locking component 21 .
- the first mounting assembly 13 may also include a limiting groove 131 and two protrusions
- the first locking assembly 21 is designed to include a protrusion that cooperates with the limiting groove 131 and two protrusions that match with the first mounting assembly 13 .
- the two protrusions are respectively matched with the buckles to realize the snap connection between the first installation component 13 and the first locking component 21 , or other structures that can realize the snap connection, which are not specifically limited here.
- the driving device 3 includes a driving unit 31 and a transmission unit 32
- the tool head 200 further includes a transmission connection piece 4 , when the tool head 200 including the transmission connection piece 4 is installed to the tool
- the drive unit 31 is coupled to the drive connector 4 through the drive unit 32, so that the drive unit 32 drives the drive connector 4 to rotate under the drive of the drive unit 31, so that the drive device 3 drives the tool head 200.
- the driving unit 31 is configured as a motor
- the transmission unit 32 is located in the support housing 15
- the motor shaft of the motor is connected to the transmission unit 32 through the support housing 15 to realize the rotation of the transmission unit 32 driven by the motor.
- the transmission unit 32 includes a first gear 321 , a linkage gear 323 , a transmission element 324 and a second gear 322 .
- a gear 321 rotates coaxially
- the linkage gear 323 includes an input gear 3231 and an output gear 3232 that rotate coaxially
- the input gear 3231 and the output gear 3232 are connected by a connecting shaft
- the input gear 3231 and the output gear 3232 are arranged on the connecting shaft at intervals
- the connecting shaft is rotatably connected with the support housing 15 .
- the first gear 321 meshes with the input gear 3231 to transmit the driving force of the motor to the output gear 3232, and the output gear 3232 meshes with the second gear 322 to further transmit the driving force of the motor to the second gear 322;
- the transmission element 324 Coaxially rotating with the second gear 322 , the transmission element 324 is used for coupling with the transmission connecting piece 4 of the tool head 200 , for finally transmitting the driving force of the motor to the tool head 200 through the transmission element 324 to drive the tool head 200 to work.
- the transmission element 324 is provided with at least one force-applying surface
- the transmission connector 4 is provided with a force-receiving surface corresponding to the force-applying surface; when the tool head 200 is installed on the tool head mounting portion 11 , the transmission element 324 The force-applying surface cooperates with the force-receiving surface of the transmission connector 4, so that when the hand-held power tool 100 provides a driving force for the tool head 200, the transmission element 324 rotates and the force-applying surface can apply a thrust to the force-receiving surface to push the transmission The connector 4 drives the tool head 200 to work.
- the linkage gear 323 can be set to effectively reduce the The size of the power assembly in the horizontal direction reduces the volume of the transmission assembly 32, which is convenient for the operator to operate.
- the hand-held power tool provided by the present invention realizes matching with tool heads with different working torques by providing at least two connection modes, so that the power tool can drive different tool heads to work with different torsional strengths, and the multiple connection modes provide It can realize the free and portable switching of tool heads, realize the diversification of tool functions, and meet the different needs of customers;
- the hand-held power tool can be selectively detachably connected to the tool head, the hand-held power tool can be split into two parts, the hand-held power tool and the tool head, and then stored or transported separately, so that the The tool occupies a small space, and the storage and transportation are more flexible and changeable, which is convenient for the operator to store or transport the tool.
- the hand-held power tool 100 includes a main body casing 1 and a drive device 3 located in the main body casing 1 .
- the main body casing 1 includes a The operating handle 12 to be held and the tool bit mounting portion 11 extending toward the other end of the main body casing 1 .
- the tool head mounting portion 11 includes a first side plate 111 and a first top plate 112 and a first bottom plate 113 disposed at both ends of the first side plate 111 .
- the first side plate 111 is a curved surface.
- the tool head mounting portion 11 is used for mounting the tool head 200 shown in FIGS. 8 to 12 .
- the tool head mounting portion 11 is provided with a first mounting assembly 13 and a second mounting assembly 14 , and the first mounting assembly 13 is It is configured as a first clamping unit.
- the first clamping unit includes a limiting slot 131 and at least one stopper 132 .
- the limiting slot 131 and the stopper 132 are arranged at intervals along the circumference direction of the host casing 1 .
- there are two stoppers 132 including a first stopper and a second stopper.
- the limiting groove 131 , the first stopper and the second stopper can be located in the main casing.
- the bodies 1 are arranged at intervals of 120° in the circumferential direction of the body 1 .
- the limiting groove 131 is disposed on the first top plate 112 of the main body casing 1 and extends in a direction away from the first top plate 112 .
- the limiting slot 131 is an inclined hole with a certain arc.
- the stopper 132 includes a pressing unit 1321 and a telescopic unit 1322 . When an external force is applied to the pressing unit 1321 , the telescopic unit 1322 is compressed under the pressing force of the pressing unit 1321 .
- the installed tool head can be installed based on the installation position.
- Point support, uniform force, can improve the stability of the host shell 1 force.
- a limit groove with a certain inclination is provided, which plays the role of a foolproof element, avoids the wrong installation of the tool head and the tool head installation part, and improves the installation and use safety.
- the second mounting assembly 14 is configured as a first locking unit for enabling the actuation of the tool head 200 including the second locking assembly 22 .
- At least one locking table 141 and at least one insertion table 142 are arranged on the pair of locking units.
- the first locking unit includes a locking table 141 and a slotting table 142 , and the locking table 141 and the slotting table 142 are spaced apart by 180° along the perimeter direction of the main body casing 1 . set up.
- the buckle platform 141 and the insertion platform 142 are both disposed on the first side plate 111 , one end of the buckle platform 141 is connected to the first side plate 111 , and the other end of the buckle platform 141 extends away from the first side plate 111 .
- One end of the socket 142 is connected to the first side plate 111 , and the other end of the socket 142 extends in a direction away from the first side plate 111 .
- the angle between the buckle table 141 and the insertion table 142 is not limited to 180°, and the included angle between the buckle table 141 and the insertion table 142 can also be 120°, 145°, 160° or other angles.
- the tool bit 200 is an electric drill bit, specifically a ground drill bit, and the electric drill bit includes a connection seat 2 , a drill bit 6 and at least one connection unit.
- the connection seat 2 At least one connecting unit is provided on it, and the connecting unit includes at least one transmission connection 4 for the rotation of the drill bit 6, which is used for the power coupling of the drill bit 6 and the transmission unit 32 of the hand-held power tool, and the connection
- the unit also comprises a second locking assembly 22 arranged for a positive and/or non-positive connection with the tool head mounting portion 11 of the hand-held power tool, when the electric drill is mounted to the When the tool head mounting portion 11 is mounted, the electric drill bit is locked and connected with the second mounting assembly 14 on the tool head mounting portion 11 by means of the second locking assembly 22 on the connecting seat 2, so that the transmission The connecting piece 4 and the transmission unit 32 of the drive device 3 are connected to each other in a rotationally fixed manner.
- the anti-relative rotation between the transmission connecting piece 4 and the transmission unit 32 means that when the rotating unit 32 of the driving device 3 drives the transmission connecting piece 4 on the tool head 200 to rotate, the rotating element 32 and the transmission connecting piece There are opposing resistances between 4.
- a second locking assembly 22 is disposed on the connecting seat 2 of the tool head 200 , so as to realize the locking connection with the second mounting assembly 14 through the second locking assembly 22 .
- the second locking assembly 22 is configured as a second locking unit, and when the tool head 200 including the second locking assembly 22 is mounted on the tool head mounting part 11, the tool head 200 can use the first locking unit and the first locking unit
- the two locking units realize a latching connection, so that the driving device 3 drives the tool head 200 to work with a second maximum torsional strength greater than the first maximum torsional strength.
- the second maximum torque resistance refers to that the driving device 3 can drive the tool head 200 to the first maximum torque resistance under the premise that the hand-held power tool and the tool head 200 are not loosened when the hand-held power tool is working normally. It operates between the strength and the second maximum torsional strength.
- the second maximum torsional strength can be 0 ⁇ 30N. m.
- the second locking unit includes a first overlapping member 221 and a second overlapping member 222 , the locking table 141 is matched with the first overlapping member 221 , and the insertion table 142 is connected with the second overlapping member 221 .
- the straps 222 mate.
- the first lap 221 includes a clasp 2211 and a rotating member 2212.
- the clasp 2211 is rotatably connected to the rotating member 2212 and then rests on the clasp 141, or is separated from the clasp 141, so as to realize the connection between the first lap 221 and the clasp 2212.
- the locking or separation of the buckle platform 141 specifically, one end of the buckle 2211 is attached to the buckle platform 141, and the other end is connected to the rotating member 2212, and the rotating member 2212 is connected to the connecting seat 2 of the tool head 200 through the connecting member 2213;
- the second The lap 222 is configured as a snap ring, including an outer snap ring and an insertion hole formed on the outer snap ring, and the insertion hole is used to cooperate with the socket 142 of the first locking unit to realize the socket 142 It is blocked and confined in the socket, or the socket 142 can be disengaged from the socket.
- the connecting member 2213 may be disposed on the connecting base 2 or on the first overlapping member 221, which is not specifically limited here.
- first mounting assembly 13 and the second mounting assembly 14 are arranged on the tool head mounting portion 11, the structures in the first mounting assembly 13 and the structures in the second mounting assembly 14 are staggered, so as to Interference when the tool bit 200 is mounted on the tool bit mounting portion 11 is avoided.
- the rotating member 2212 includes a first side ear, a connecting rod and a second side ear, one end of the connecting rod is connected to the bottom of the first side ear, the other end of the connecting rod is connected to the bottom of the second side ear, the top of the first side ear and the second side ear are connected.
- Connecting rods extend from the tops of the two side ears.
- the non-overlapping end of the buckle 2211 is provided with a first lug and a second lug, the first lug and the second lug are symmetrically arranged, the first lug is rotatably connected to the bottom of the first side lug, and the second lug is connected to the bottom of the first side lug.
- the bottom of the second side ear is rotatably connected, and the end of the connecting piece 2213 that is not connected to the connection base 2 is provided between the first side ear and the second side ear, and the rotational connection with the top of the first side ear and the top of the second side ear is achieved through the rotating shaft .
- the socket 142 is firstly inserted on the second overlapping member 222 configured as a snap ring, so that the second overlapping member 222 is connected to the socket based on the second overlapping member 222 .
- the cooperation of 142 realizes the preliminary positioning of the tool head 200 and the tool head mounting part 11.
- the buckle 2211 is placed on the buckle table 141, so as to realize the connection between the first lap 221 and the buckle table 141.
- the tool head 200 is finally matched with the tool head mounting portion 11 through the cooperation of the first overlapping member 221 and the buckle table 141 and the cooperation of the second overlapping member 222 with the insertion table 142 .
- the second overlapping member 222 is configured as a snap ring, which is only a preferred solution, and in other feasible solutions, the second overlapping member 222 can also be configured to be connected with the first overlapping member 221.
- the driving device 3 includes a driving unit 31 and a transmission unit 32 .
- the tool head 200 further includes a transmission connecting piece 4 .
- the drive unit 31 is coupled to the transmission connector 4 through the transmission unit 32, so that the transmission unit 32 drives the transmission connector 4 to rotate under the drive of the drive unit 31, so that the drive device 3 drives the tool head 200.
- the drive unit 31 is configured as a motor
- the transmission unit 32 is located in the support housing 15
- the motor shaft of the motor is connected to the transmission unit 32 through the support housing 15 , so as to realize that the motor drives the transmission unit 32 turn.
- the transmission unit 32 includes a first gear 321 , a linkage gear 323 , a transmission element 324 and a second gear 322 .
- the motor rotates coaxially with the first gear 321 after passing through the second bottom plate 153 of the support housing 15
- the linkage gear 323 includes a coaxially rotating input gear 3231 and an output gear 3232, the input gear 3231 and the output gear 3232 are connected by a connecting shaft, the input gear 3231 and the output gear 3232 are arranged on the connecting shaft at intervals, and the connecting shaft rotates with the support housing 15 connect.
- the first gear 321 meshes with the input gear 3231 to transmit the driving force of the motor to the output gear 3232, and the output gear 3232 meshes with the second gear 322 to further transmit the driving force of the motor to the second gear 322;
- the transmission element 324 Coaxially rotating with the second gear 322 , the transmission element 324 is used for coupling with the transmission connecting piece 4 of the tool head 200 , for finally transmitting the driving force of the motor to the tool head 200 through the transmission element 324 to drive the tool head 200 to work.
- the transmission element is provided with at least one force-applying surface
- the transmission connecting piece is provided with a force-receiving surface corresponding to the force-applying surface; when the tool head is mounted on the tool head mounting portion, the force-applying surface of the transmission element is the same as the force-applying surface.
- the force-bearing surfaces of the transmission connector are matched so that when the hand-held power tool provides driving force for the tool head, the transmission element rotates and the force-applying surface can apply thrust to the force-bearing surface, so as to push the transmission connector to drive the tool head to work.
- the linkage gear 323 can be set to effectively reduce the The size of the power assembly in the horizontal direction reduces the volume of the transmission assembly 32, which is convenient for the operator to operate.
- Embodiment 1 and Embodiment 2 only one locking component is provided on the tool head 200.
- the first locking component 21 and the second locking component can also be provided on the tool head 200 at the same time.
- the assembly 22 is selectively latched with the first installation assembly 13 through the first locking assembly 21 , and connected with the second installation assembly 14 through the second locking assembly 22 through the latching connection. Therefore, when two locking assemblies are provided on the tool head 200 , a suitable connection mode can be selected based on the force of the tool head 200 itself, so as to realize the stable connection between the tool head 200 and the hand-held power tool 100 .
- first locking assembly 21 and the second locking assembly 22 are arranged on the same tool head 200 at the same time, the structures of the first locking assembly 21 and the structures of the second locking assembly 22 are staggered and arranged. The position ensures that no interference occurs between the structures when mating with the staggered arrangement of the first mounting assemblies 13 and the second mounting assemblies 14 .
- the host housing 1 in all the above embodiments includes the first mounting assembly 13 and the second mounting assembly 14 , which is only a preferred manner.
- the host housing 1 may also include a third The installation component, the fourth installation component or more installation components, for the same reason, it is only a preferred way that the tool head 200 is provided with the first locking component 21 and the second locking component 22.
- the tool head 200 may also include a third locking assembly, a fourth locking assembly, or more locking assemblies.
- the setting of the locking assembly on the tool head 200 and the setting of the mounting assembly on the hand-held power tool 100 are only a pre-selection solution, and in other feasible solutions, the locking assembly may also be set On the hand-held power tool 100, the mounting assembly is arranged on the tool head 200, that is, the positions of the locking structure on the hand-held power tool 100 and the locking structure on the tool head 200 are exchanged. Specifically, the hand-held tool can be realized. The design is based on the locking of the machine 100 and the tool head 200 , and there is no specific limitation here.
- This embodiment discloses a schematic structural diagram of another hand-held power tool.
- the tool head 200 is a blowing head
- the matching method of the blowing head and the hand-held power tool 100 is the same as that of the electric power tool in the above-mentioned second embodiment.
- the adaptation of the drill bit to the hand-held power tool 100 is the same, and details are not repeated here.
- This embodiment discloses a schematic structural diagram of another hand-held power tool.
- the tool head 200 is a stirring head
- the matching method of the stirring and the hand-held power tool 100 is the same as that of the electric drill in the above-mentioned second embodiment.
- the adaptation method is the same as that of the hand-held power tool, and will not be repeated here.
- the hand-held power tool provided by the present invention realizes matching with tool heads with different working torques by providing at least two connection modes, so that the power tool can drive different tool heads to work with different torsional strengths, and the multiple connection modes provide It can realize the free and portable switching of tool heads, realize the diversification of tool functions, and meet the different needs of customers;
- the hand-held power tool can be selectively detachably connected to the tool head, the hand-held power tool can be split into two parts, the hand-held power tool and the tool head, and then stored or transported separately, so that the The tool occupies a small space, and the storage and transportation are more flexible and changeable, which is convenient for the operator to store or transport the tool.
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Abstract
Description
Claims (15)
- 一种手持式工具机,包括主机壳体(1),设置于主机壳体(1)内的驱动装置(3),所述主机壳体(1)上设有便于工具头(200)形状锁合和/或力锁合连接的工具头安装部(11);其特征在于:所述工具头安装部(11)至少包括第一安装组件(13)和第二安装组件(14),当包括第一锁定组件(21)的工具头(200)安装到所述工具头安装部(11)上时,所述工具头(200)能借助所述第一安装组件(13)和所述第一锁定组件(21)实现形状锁合和/或力锁合连接,以便所述驱动装置(3)能够以一第一最大抗扭强度来驱动所述工具头(200)工作;A hand-held power tool, comprising a main body casing (1), a drive device (3) arranged in the main body casing (1), and a shape lock for a tool head (200) is provided on the main body casing (1) A tool head mounting portion (11) connected in a positive and/or force-locking connection; characterized in that: the tool head mounting portion (11) at least includes a first mounting component (13) and a second mounting component (14), and when including When the tool head (200) of the first locking assembly (21) is mounted on the tool head mounting part (11), the tool head (200) can be supported by the first mounting assembly (13) and the first The locking assembly (21) realizes a form-locking and/or force-locking connection, so that the driving device (3) can drive the tool head (200) to work with a first maximum torsional strength;当包括第二锁定组件(22)的工具头(200)安装到所述工具头安装部(11)上时,所述工具头(200)能借助所述第二安装组件(14)和所述第二锁定组件(22)实现形状锁合和/或力锁合连接以便所述驱动装置(3)能够以一大于所述第一最大抗扭强度的第二最大抗扭强度来驱动所述工具头(200)工作。When a tool head (200) including a second locking assembly (22) is mounted on the tool head mounting portion (11), the tool head (200) is able to use the second mounting assembly (14) and the The second locking assembly (22) realizes a positive and/or non-positive connection so that the drive device (3) can drive the tool with a second maximum torsional strength that is greater than the first maximum torsional strength Head (200) works.
- 根据权利要求1所述的手持式工具机,其特征在于,所述第一安装组件(13)被构造为第一卡接单元,当包括被构造为第二卡接单元的第一锁定组件(21)的工具头(200)安装到所述工具头安装部(11)上时,所述工具头(200)能够借助所述第一卡接单元和所述第二卡接单元实现卡接配合,以便所述驱动装置(3)能够以所述第一最大抗扭矩强度来驱动所述工具头(200)工作。The hand-held power tool according to claim 1, characterized in that the first mounting assembly (13) is configured as a first latching unit, when including a first locking assembly (13) configured as a second latching unit When the tool head (200) of 21) is mounted on the tool head mounting portion (11), the tool head (200) can realize snap fit by means of the first snap unit and the second snap unit , so that the driving device (3) can drive the tool head (200) to work with the first maximum torque resistance strength.
- 根据权利要求2所述的手持式工具机,其特征在于,所述第一卡接单元包括限位槽(131)和至少一个挡止件(132),所述限位槽(131)以及至少一个所述挡止件(132)沿所述主机壳体(1)的周长方向间隔设置,所述限位槽(131)用于与所述第二卡接单元的限位台(211)配合,所述挡止件(132)用于与所述第二卡接单元的卡接件(212)配合。The hand-held power tool according to claim 2, wherein the first clamping unit comprises a limit groove (131) and at least one stopper (132), the limit groove (131) and at least one stopper (132). One of the stoppers (132) is arranged at intervals along the perimeter direction of the main body casing (1), and the limiting grooves (131) are used for connecting with the limiting platform (211) of the second clamping unit In cooperation, the stopper (132) is used to cooperate with the clip (212) of the second clip unit.
- 根据权利要求3所述的手持式工具机,其特征在于,所述挡止件(132)包括按压单元(1321)和伸缩单元(1322),当按压所述按压单元(1321)时,所述伸缩单元(1322)在所述按压单元(1321)的按压力下被压缩,以便于所 述挡止件(132)将所述卡接件(212)阻挡限定在所述工具头安装部(11)上,或所述挡止件(132)对所述卡接件(212)解除限定,以使得所述卡接件(212)在所述工具头安装部(11)上脱离。The hand-held power tool according to claim 3, wherein the stopper (132) comprises a pressing unit (1321) and a telescopic unit (1322), and when the pressing unit (1321) is pressed, the The telescopic unit (1322) is compressed under the pressing force of the pressing unit (1321), so that the stopper (132) stops and defines the clip (212) on the tool head mounting part (11). ), or the stopper (132) releases the restriction on the catch (212), so that the catch (212) is disengaged from the tool head mounting part (11).
- 根据权利要求4所述的手持式工具机,其特征在于,所述按压单元(1321)包括按压部(13211)、避让部(13212)以及挡止部(13213),所述避让部(13212)一端与所述按压部(13211)连接,所述避让部(13212)的另一端与所述挡止部(13213)连接。The hand-held power tool according to claim 4, wherein the pressing unit (1321) comprises a pressing part (13211), an escape part (13212) and a stop part (13213), the escape part (13212) One end is connected to the pressing part (13211), and the other end of the escape part (13212) is connected to the blocking part (13213).
- 根据权利要求1-5任一项所述的手持式工具机,其特征在于,所述第二安装组件(14)被构造为第一锁止单元,当包括被构造为第二锁止单元的第二锁定组件(22)的工具头(200)安装到所述工具头安装部(11)上时,所述工具头(200)能够借助所述第一锁止单元与所述第二锁止单元实现卡锁连接,以便所述驱动装置(3)能够以所述第二最大抗扭矩强度来驱动所述工具头(200)工作。The hand-held power tool according to any one of claims 1-5, characterized in that the second mounting assembly (14) is configured as a first locking unit, when it includes a second locking unit configured as a second locking unit When the tool head (200) of the second locking assembly (22) is mounted on the tool head mounting portion (11), the tool head (200) can be locked with the second locking unit by the first locking unit The unit realizes a latching connection, so that the drive device (3) can drive the tool head (200) to work with the second maximum torque resistance.
- 根据权利要求6所述的手持式工具机,其特征在于,所述第一锁止单元包括至少一个扣台(141)和至少一个插台(142),The hand-held power tool according to claim 6, characterized in that the first locking unit comprises at least one locking table (141) and at least one insertion table (142),所述扣台(141)用于与所述第二锁止单元的第一搭接件(221)配合,以便于所述第一搭接件(221)上的搭扣(2211)在与所述第一搭接件(221)上的转动件(2212)转动连接后,搭设在所述扣台(141)上或与所述扣台(141)分离;The buckle platform (141) is used to cooperate with the first lap (221) of the second locking unit, so that the buckle (2211) on the first lap (221) can be in contact with all the latches (2211). After the rotating member (2212) on the first overlapping member (221) is rotatably connected, it is mounted on the buckle platform (141) or separated from the buckle platform (141);所述插台(142)用于与所述第二锁止单元的第二搭接件(222)配合,以便于所述插台(142)与被构造为卡环的所述第二搭接件(222)插接或分离。The socket (142) is used to cooperate with the second lap (222) of the second locking unit, so that the socket (142) is connected with the second lap configured as a snap ring Pieces (222) are plugged or detached.
- 根据权利要求1所述的手持式工具机,其特征在于,所述驱动装置(3)包括驱动单元(31)和传动单元(32),当包括传动连接件(4)的工具头(200)安装到所述工具头安装部(11)上时,所述驱动单元(31)通过所述传动单元(32)耦合于所述传动连接件(4)上,以便于所述传动单元(32)在所述驱动单元(31)的带动下驱动所述传动连接件(4)转动,实现驱动装置(3)驱动 所述工具头(200)工作。The hand-held power tool according to claim 1, characterized in that the drive device (3) comprises a drive unit (31) and a transmission unit (32), when the tool head (200) of the transmission connection (4) is included When being mounted on the tool head mounting portion (11), the driving unit (31) is coupled to the transmission connecting piece (4) through the transmission unit (32), so as to facilitate the transmission unit (32) Driven by the driving unit (31), the transmission connecting piece (4) is driven to rotate, so that the driving device (3) drives the tool head (200) to work.
- 根据权利要求8所述的手持式工具机,其特征在于,所述驱动单元(31)被构造为电机,所述传动单元(32)包括第一齿轮(321)、联动齿轮(323)、传动元件(324)和第二齿轮(322),所述电机的输出轴与所述第一齿轮(321)同轴转动,所述联动齿轮(323)包括同轴转动的输入齿轮(3231)和输出齿轮(3232),所述第一齿轮(321)与所述输入齿轮(3231)啮合,所述输出齿轮(3232)与所述第二齿轮(322)啮合;所述传动元件(324)与所述第二齿轮(322)同轴转动,所述传动元件(324)用于与所述传动连接件(4)耦合。The hand-held power tool according to claim 8, characterized in that the drive unit (31) is configured as a motor, and the transmission unit (32) comprises a first gear (321), a linkage gear (323), a transmission An element (324) and a second gear (322), the output shaft of the motor rotates coaxially with the first gear (321), and the linkage gear (323) includes an input gear (3231) and an output gear (3231) that rotate coaxially A gear (3232), the first gear (321) is meshed with the input gear (3231), the output gear (3232) is meshed with the second gear (322); the transmission element (324) is meshed with the The second gear (322) rotates coaxially, and the transmission element (324) is used for coupling with the transmission connecting piece (4).
- 根据权利要求9所述的手持式工具机,其特征在于,所述传动元件(324)上配置有至少一个施力面,所述传动连接件(4)上配置有与所述施力面对应的受力面;当所述工具头(200)安装到所述工具头安装部(11)上时,所述传动元件(324)的施力面与所述传动连接件(4)的受力面配合,以使得所述手持式工具机(100)为所述工具头(200)提供驱动力时,所述传动元件(324)转动且所述施力面能够向所述受力面施加推力,以推动所述传动连接件(4)带动所述工具头(200)工作。The hand-held power tool according to claim 9, characterized in that at least one force application surface is arranged on the transmission element (324), and the transmission connection piece (4) is arranged with a force application surface opposite to the force application surface. When the tool head (200) is installed on the tool head mounting portion (11), the force applying surface of the transmission element (324) and the receiving force of the transmission connecting piece (4) The force surface is matched, so that when the hand-held power tool (100) provides the driving force for the tool head (200), the transmission element (324) rotates and the force applying surface can apply the force to the force receiving surface thrust, so as to push the transmission connecting piece (4) to drive the tool head (200) to work.
- 一种手持式电动工具,其特征在于,所述手持式电动工具包括工具头(200)以及如权利要求1-10任一项所述的手持式工具机(100),所述工具头(200)包括第一锁定组件(21)和/或第二锁定组件(22)。A hand-held power tool, characterized in that the hand-held power tool comprises a tool head (200) and the hand-held power tool (100) according to any one of claims 1-10, the tool head (200) ) comprises a first locking assembly (21) and/or a second locking assembly (22).
- 根据权利要求11所述的手持式电动工具,其特征在于,所述工具头(200)包括吹风头或电动钻头或搅拌头或绿篱头或刷子头或圆锯头或剪草头中的至少一种。The hand-held power tool according to claim 11, wherein the tool head (200) comprises at least one of a blower head or an electric drill head or a stirring head or a hedge head or a brush head or a circular saw head or a grass cutting head kind.
- 根据权利要求12所述的手持式电动工具,其特征在于,所述工具头(200)包括剪草头,所述剪草头包括连接座(2)、传动连接件(4)和执行单元(5),所述连接座(2)上设置有第一锁定组件(21),所述执行单元(5)包括第一执行件(51)和第二执行件(52),所述第二执行件(52)的一端被构造成包 括安装端面的第一固定端部(521),所述第一固定端部(521)可拆卸连接在所述连接座(2)的底部以使得所述安装端面形成为所述工具头(200)的底面;The hand-held power tool according to claim 12, wherein the tool head (200) comprises a cutting head, and the cutting head comprises a connecting seat (2), a transmission connecting piece (4) and an execution unit ( 5), the connection seat (2) is provided with a first locking assembly (21), the execution unit (5) includes a first execution member (51) and a second execution member (52), the second execution member (52) One end of the piece (52) is configured to include a first fixing end portion (521) of the mounting end face, the first fixing end portion (521) being detachably connected to the bottom of the connecting seat (2) to allow the mounting The end face is formed as the bottom face of the tool head (200);当所述剪草头通过所述连接座(2)安装到所述工具头安装部(11)上时,所述连接座(2)通过所述第一锁定组件(21)与工具头安装部(11)上的第一安装组件(13)锁合连接,所述第一执行件(51)通过所述传动连接件(4)与所述驱动装置(3)的传动单元(32)实现动力耦合,使得所述驱动装置(3)以第一最大抗扭强度驱动所述第一执行件(51)相对所述第二执行件(52)作往复运动。When the cutting head is mounted on the tool head mounting part (11) through the connecting seat (2), the connecting seat (2) is connected to the tool head mounting part through the first locking assembly (21) The first installation assembly (13) on the (11) is locked and connected, and the first actuator (51) realizes power through the transmission connecting piece (4) and the transmission unit (32) of the driving device (3). The coupling enables the driving device (3) to drive the first actuator (51) to reciprocate relative to the second actuator (52) with the first maximum torsional strength.
- 根据权利要求12所述的手持式电动工具,其特征在于,所述工具头(200)包括电动钻头,其特征在于,所述电动钻头包括连接座(2)、钻头(6)以及至少一个连接单元,所述连接座(2)上设置有至少一个连接单元,所述连接单元为了所述钻头(6)的转动而包括至少一个传动连接件(4),用于将所述钻头(6)与手持式工具机的传动单元(32)动力耦合,The hand-held power tool according to claim 12, characterized in that the tool head (200) comprises an electric drill, characterized in that the electric drill comprises a connection seat (2), a drill (6) and at least one connection Unit, at least one connecting unit is provided on the connecting seat (2), and the connecting unit includes at least one transmission connecting piece (4) for the rotation of the drill bit (6), which is used for connecting the drill bit (6) Power coupling with the transmission unit (32) of the hand-held power tool,所述连接单元还包括了为了与所述手持式工具机的工具头安装部(11)形状锁合和/或力锁合连接而布置的第二锁定组件(22),当所述电动钻头通过连接座(2)安装到所述工具头安装部(11)上时,所述电动钻头借助所述连接座(2)上的所述第二锁定组件(22)与所述工具头安装部(11)上的第二安装组件(14)锁合连接,使得所述传动连接件(4)与所述驱动装置(3)的传动单元(32)抗相对转动地彼此连接。The connecting unit also comprises a second locking assembly (22) arranged for a positive- and/or non-positive connection with the tool head mounting (11) of the hand-held power tool, when the electric drill is passed through When the connecting seat (2) is mounted on the tool bit mounting portion (11), the electric drill bit is connected to the tool bit mounting portion ( The second mounting assembly (14) on 11) is in a locking connection, so that the transmission connecting piece (4) and the transmission unit (32) of the drive device (3) are connected to each other in a rotationally fixed manner.
- 根据权利要求14所述的手持式电动工具,其特征在于,所述第二锁定组件(22)被构造为第二锁止单元,所述第二锁止单元包括第一搭接件(221)和第二搭接件(222),所述第一搭接件(221)至少包括搭扣(2211)和转动件(2212),所述搭扣(2211)一端设置有凸台,用于与所述第一锁止单元的扣台(141)搭接,所述搭扣(2211)的另一端与所述转动件(2212)转动连接,所述转动件(2212)转动连接在所述工具头(200)的连接座(2)上;The hand-held power tool according to claim 14, characterized in that the second locking assembly (22) is configured as a second locking unit, the second locking unit comprising a first catch (221) and a second lap (222), the first lap (221) at least includes a buckle (2211) and a rotating member (2212), and one end of the buckle (2211) is provided with a boss for connecting with the buckle (2211). The buckle platform (141) of the first locking unit is overlapped, and the other end of the buckle (2211) is rotatably connected to the rotating member (2212), and the rotating member (2212) is rotatably connected to the tool on the connecting seat (2) of the head (200);所述第二搭接件(222)被构造为卡环,包括卡接外环以及开设于卡接外环上的插孔,所述插孔用于与第一锁止单元的插台(142)配合,以实现所述插台(141)被阻挡限定在所述插孔内,或实现所述插台(142)在所述插孔上脱离。The second lap (222) is configured as a snap ring, including an outer snap ring and an insertion hole opened on the outer snap ring, the insertion hole is used for connecting with the socket (142 of the first locking unit) ) to cooperate to realize that the socket (141) is blocked and defined in the socket, or to realize that the socket (142) is disengaged from the socket.
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CN202011050146.9A CN114310802B (en) | 2020-09-29 | 2020-09-29 | Hand-held power tool and hand-held electric tool with same |
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