CN110695903A - Electric screwdriver with multiple rotary joints - Google Patents
Electric screwdriver with multiple rotary joints Download PDFInfo
- Publication number
- CN110695903A CN110695903A CN201910982382.5A CN201910982382A CN110695903A CN 110695903 A CN110695903 A CN 110695903A CN 201910982382 A CN201910982382 A CN 201910982382A CN 110695903 A CN110695903 A CN 110695903A
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- bevel gear
- shell
- rotary
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- 230000005540 biological transmission Effects 0.000 claims abstract description 75
- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 239000004677 Nylon Substances 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002023 wood Substances 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
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/0007—Connections or joints between tool parts
- B25B23/0028—Angular adjustment means between tool head and handle
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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
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses an electric screwdriver with multiple rotary joints, which comprises a screwdriver handle shell, wherein a driving part for providing working power is arranged in the screwdriver handle shell, the driving end of the driving part extends out of the front end of the screwdriver handle shell, the driving part is electrically connected with a switch, and the switch is arranged on the side wall of the screwdriver handle shell; the front end of the knife handle shell is rotatably connected with a rotary shell, and a first transmission mechanism which is coaxially connected with the driving end of the driving part is arranged in the rotary shell; the rotating shell is hinged with a connecting frame, and a second transmission mechanism connected with the force output end of the first transmission mechanism is arranged in the connecting frame; the front end of the connecting frame is hinged with a swinging shell, and a third transmission mechanism connected with the force output end of the second transmission mechanism is arranged in the swinging shell; the force output end of the third transmission mechanism is detachably connected with a cutter head. The invention is suitable for narrow working areas, and has the characteristics of small volume, convenient carrying and the like.
Description
Technical Field
The invention relates to the technical field of screwdrivers, in particular to an electric screwdriver with multiple rotary joints.
Background
At present, the screwdriver is almost a necessary product for each household, is a tool for screwing and unscrewing screws, and can conveniently disassemble and assemble various common screws in household appliances. Especially, electric screwdriver receive people's favor because of can automatic elasticity screw, labour saving and time saving, but electric screwdriver in the existing market is the straight rod type mostly, can't use in narrow workspace or the region that the non-straight line direct contact arrived, only manual work comes the operation, and is inefficient, and sometimes the station is nervous just even manual work is also difficult to operate, makes the torsion of fastening screw can't reach the requirement and influences product quality.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the related art. Therefore, the invention provides the electric screwdriver with the multiple rotary joints, which is suitable for narrow working areas and has the characteristics of small volume, convenience in carrying and the like.
The electric screwdriver with the multiple rotary joints comprises a screwdriver handle shell; the driving part is used for providing working power, the driving part is arranged in the hilt shell, the driving end of the driving part extends out of the front end of the hilt shell, the driving part is electrically connected with a switch, and the switch is arranged on the side wall of the hilt shell; the rotary shell is rotatably connected to the front end of the hilt shell; the first transmission mechanism is arranged in the rotating shell, and the force input end of the first transmission mechanism is coaxially connected with the driving end of the driving part; the connecting frame is hinged with the rotating shell; the second transmission mechanism is arranged in the connecting frame, and the force input end of the second transmission mechanism is connected with the force output end of the first transmission mechanism; the swinging shell is hinged with the front end of the connecting frame; the third transmission mechanism is arranged in the swinging shell, and a force input end of the third transmission mechanism is connected with a force output end of the second transmission mechanism; and the tool bit is detachably connected to the force output end of the third transmission mechanism.
The electric screwdriver with multiple rotary joints provided by the embodiment of the invention at least has the following technical effects: the front end of the hilt shell is rotatably connected with a rotary shell, the rotary shell is hinged with a connecting frame, and the front end of the connecting frame is hinged with a swinging shell. The structure of the embodiment of the invention has three rotary joints, the cutter handle shell and the rotary shell can rotate 360 degrees mutually, the connecting frame can swing 180 degrees relative to the rotary shell, and the swinging shell can swing 180 degrees relative to the connecting frame, so that the working space and flexibility of the cutter head are increased, and the working modes of multi-section 180-degree deflection motion and 360-degree rotation motion are realized. When the multi-section type tool bit is used, a user can manually adjust the swinging and the rotation of the joint to realize the multi-section type 180-degree rotation adjustment of the tool bit, and the tool holder shell can also be adjusted in a 360-degree rotation manner. For some narrow areas and non-linear working dead angles, the device can easily work deeply, and the function of using in the narrow working areas and the non-linear working areas is realized, so that the trouble of manual operation is avoided, and the work efficiency is improved. The switch is arranged on the side wall of the knife handle shell, so that a user can conveniently control the start, stop and forward and reverse rotation of the driving part when in use; the driving part, the first transmission mechanism, the second transmission mechanism and the third transmission mechanism are respectively arranged in the hilt shell, the rotating shell, the connecting frame and the swinging shell, so that the structure of the embodiment of the invention has smaller volume and is convenient to carry.
According to some embodiments of the invention, the driving part is a pocket motor, a driver of the pocket motor is controlled by the switch to start and stop, and an output shaft of the pocket motor extends out of the front end of the hilt housing.
According to some embodiments of the present invention, the first transmission mechanism includes a first bevel gear coaxially connected to the driving end of the driving portion, the first bevel gear is in mesh connection with a second bevel gear, the number of teeth of the first bevel gear is greater than that of the second bevel gear, a gear hole of the second bevel gear is connected with a first gear shaft, the first gear shaft is connected with a force input end of the second transmission mechanism, and the connecting frame is hinged to the rotating housing through the first gear shaft.
According to some embodiments of the present invention, the second transmission mechanism includes a first cylindrical gear coaxially connected to the first gear shaft, the first cylindrical gear is connected to a second cylindrical gear in a meshing manner, the first cylindrical gear and the second cylindrical gear are identical gears, a gear hole of the second cylindrical gear is connected to a second gear shaft, the second gear shaft is connected to a force input end of the third transmission mechanism, and the connecting frame is hinged to the swing housing through the second gear shaft.
According to some embodiments of the invention, the connecting frame comprises an upper plate and a lower plate, the upper plate and the lower plate are connected through a connecting plate, the upper plate is provided with a mounting cavity, the first cylindrical gear and the second cylindrical gear are connected to the mounting cavity in a meshing manner, and an opening of the mounting cavity is covered with a protection plate.
According to some embodiments of the present invention, the third transmission mechanism includes a third bevel gear coaxially connected to the second gear shaft, the third bevel gear is in meshing connection with a fourth bevel gear, the number of teeth of the third bevel gear is less than that of the fourth bevel gear, a gear hole of the fourth bevel gear is connected to a rotating shaft, and the cutter head is detachably connected to the rotating shaft.
According to some embodiments of the invention, the gear ratio of the first and second bevel gears is equal to the gear ratio of the fourth and third bevel gears.
According to some embodiments of the invention, the rotating shaft is provided with a square hole matched with the connecting part of the cutter head, and the square hole is internally provided with a magnet for tightly attracting the cutter head.
According to some embodiments of the invention, the rotating shaft is provided with a connecting hole matched with the connecting portion of the cutter head, a first threaded hole penetrates through the position of the rotating shaft corresponding to the connecting hole, the connecting portion of the cutter head is provided with a second threaded hole corresponding to the first threaded hole, and the first threaded hole and the second threaded hole are used for a screw to pass through for threaded connection.
According to some embodiments of the invention, a nylon member for increasing friction is provided between the connection surfaces of the rotary housing and the handle housing.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a front view of an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional structural view of an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of the embodiment of the present invention when the rotating and swinging motion is performed by a certain angle;
FIG. 5 is a schematic view of an assembly structure of a driving part, a first transmission mechanism, a second transmission mechanism, a third transmission mechanism and a cutter head according to an embodiment of the present invention;
FIG. 6 is an exploded view of the connecting frame according to the embodiment of the present invention;
fig. 7 is an exploded view of the tool tip and the rotating shaft according to an embodiment of the present invention.
Reference numerals:
100-handle shell, 110-flexible sleeve;
200-drive, 210-switch;
300-a rotating housing;
400-connecting frames, 410-upper plates, 411-mounting cavities, 412-protection plates, 420-lower plates and 430-connecting plates;
500-a swing case;
600-cutter head, 610-connection;
710-first bevel gear, 720-second bevel gear, 730-first gear shaft;
810-a first cylindrical gear, 820-a second cylindrical gear, 830-a second gear shaft;
910-third bevel gear, 920-fourth bevel gear, 930-rotating shaft, 931-square hole.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to the orientation description, such as "upper", "lower", "front", "rear", "left", "right", etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if there is any description of "first", "second", "third", etc. for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implying number of indicated technical features or implying precedence of indicated technical features.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 4, the electric screwdriver with multiple rotary joints according to the embodiment of the present invention includes a handle housing 100, a driving part 200, a rotary housing 300, a first transmission mechanism, a connecting frame 400, a second transmission mechanism, a swing housing 500, a third transmission mechanism, and a screwdriver bit 600; the driving part 200 is used for providing working power, the driving part 200 is arranged in the tool holder shell 100, the driving end of the driving part 200 extends out of the front end of the tool holder shell 100, the driving part 200 is electrically connected with a switch 210, and the switch 210 is arranged on the side wall of the tool holder shell 100; the rotary housing 300 is rotatably connected to the front end of the handle housing 100; the first transmission mechanism is arranged in the rotary shell 300, and the force input end of the first transmission mechanism is coaxially connected with the driving end of the driving part 200; the connection frame 400 is hinged with the rotary case 300; the second transmission mechanism is arranged in the connecting frame 400, and the force input end of the second transmission mechanism is connected with the force output end of the first transmission mechanism; the swing case 500 is hinged to the front end of the link frame 400; the third transmission mechanism is arranged in the swing shell 500, and the force input end of the third transmission mechanism is connected with the force output end of the second transmission mechanism; the tool head 600 is detachably connected to the force output end of the third transmission mechanism. Compared with the prior art, the embodiment of the invention is characterized in that the front end of the hilt housing 100 is rotatably connected with the rotary housing 300, the rotary housing 300 is hinged with the connecting frame 400, and the front end of the connecting frame 400 is hinged with the swinging housing 500. The structure of the embodiment of the invention has three rotary joints, the hilt housing 100 and the rotary housing 300 can rotate 360 degrees mutually, the connecting frame 400 can swing 180 degrees relative to the rotary housing 300 and the swinging housing 500 can swing 180 degrees relative to the connecting frame 400, so that the working space and flexibility of the tool bit 600 are increased, and the working modes of multi-section 180-degree deflection motion and 360-degree rotation motion are realized. When the multi-section type tool bit is used, a user can manually adjust the swinging and rotating of the joint to realize multi-section type 180-degree rotation adjustment of the tool bit 600, and the tool holder shell 100 can also be adjusted in a 360-degree rotation manner. For some narrow areas and non-linear working dead angles, the device can easily work deeply, and the function of using in the narrow working areas and the non-linear working areas is realized, so that the trouble of manual operation is avoided, and the work efficiency is improved. The switch 210 is arranged on the side wall of the knife handle shell 100, so that a user can conveniently control the start, stop and forward and reverse rotation of the driving part 200 when in use; the driving part 200, the first transmission mechanism, the second transmission mechanism and the third transmission mechanism are respectively arranged in the handle housing 100, the rotary housing 300, the connecting frame 400 and the swinging housing 500, and the torque output by the driving part 200 can be stably transmitted to the cutter head 600, so that the structure of the embodiment of the invention has a small volume and is convenient to carry. Specifically, the outer side wall of the hilt housing 100 is provided with a plurality of flexible sleeves 110 at intervals, and on one hand, the flexible sleeves 110 can prevent the palm of a user from being in rigid contact with the hilt housing 100 in the using process, so that the comfort of the user in the using process is improved; on the other hand, the friction force of the palm of the user for holding the handle shell 100 can be increased, and unnecessary damage caused by 'falling off the handle' of the electric screwdriver in the using process is avoided.
In some embodiments of the present invention, the driving part 200 is a pocket motor, the driver of the pocket motor is controlled by a switch 210 to start, stop, rotate forward and backward, and the output shaft of the pocket motor extends out of the front end of the hilt housing 100. The pocket motor has the characteristics of small volume, low transmission noise, quick response and the like, and simultaneously has not small torque output, can be slightly loosened and completely rotated through the double-layer composite wood board, and the torque completely meets the daily use requirement. When the pocket motor is used, an external voltage transformation device is not needed, so that the size of the whole structure is further miniaturized, and the pocket motor is convenient to use and carry. Further, in order to dissipate heat generated during the driving of the pocket motor, a vent hole is formed in the case of the handle case 100. Furthermore, two ventilation holes are preferably provided, and the two ventilation holes are preferably opened at the upper and lower portions of the handle housing 100, so that air can penetrate through the entire handle housing 100, and the heat dissipation effect is better.
As shown in fig. 3 and 5, in some embodiments of the present invention, the first transmission mechanism includes a first bevel gear 710 coaxially connected to the driving end of the driving part 200, a second bevel gear 720 is engaged with the first bevel gear 710, the number of teeth of the first bevel gear 710 is greater than that of the second bevel gear 720, a first gear shaft 730 is connected to a gear hole of the second bevel gear 720, the first gear shaft 730 is connected to a force input end of the second transmission mechanism, and the connecting frame 400 is hinged to the rotating housing 300 through the first gear shaft 730. By arranging the first bevel gear 710 and the second bevel gear 720 which are meshed with each other, the intersection angle between the axis of the first bevel gear 710 and the axis of the second bevel gear 720 is equal to 90 degrees, so that the force output by the driving part 200 is overturned by 90 degrees and transmitted to the second transmission mechanism, the second bevel gear 720 coaxially and stably transmits the force to the second transmission mechanism through the first gear shaft 730, and the connecting frame 400 is hinged with the rotating shell 300 through the first gear shaft 730, so that the volume of the whole structure of the embodiment of the invention is further miniaturized, and the use and the carrying are convenient.
As shown in fig. 3 and 5, the second transmission mechanism further includes a first cylindrical gear 810 coaxially connected to the first gear shaft 730, the first cylindrical gear 810 is connected to a second cylindrical gear 820 in a meshing manner, the first cylindrical gear 810 and the second cylindrical gear 820 are identical gears, a second gear shaft 830 is connected to a gear hole of the second cylindrical gear 820, the second gear shaft 830 is connected to a force input end of the third transmission mechanism, and the connecting frame 400 is hinged to the swing housing 500 through the second gear shaft 830. Through the arrangement of the first cylindrical gear 810 and the second cylindrical gear 820 which have the same structure, the force output by the first transmission mechanism is transmitted to the third transmission mechanism in a ratio of one to one, the second cylindrical gear 820 coaxially and stably transmits the force to the third transmission mechanism through the second gear shaft 830, and the swing shell 500 is hinged with the connecting frame 400 through the second gear shaft 830, so that the overall structure of the embodiment of the invention is further miniaturized in volume and is convenient to use and carry. Specifically, the first cylindrical gear 810 and the second cylindrical gear 820 are identical straight-toothed cylindrical gears, and meshing transmission of the straight-toothed cylindrical gears has the characteristics of compact structure, stable transmission, low noise and strong bearing capacity.
As shown in fig. 6, further, the connecting frame 400 includes an upper plate 410 and a lower plate 420, the upper plate 410 and the lower plate 420 are connected by a connecting plate 430, a mounting cavity 411 is disposed on the upper plate 410, a first cylindrical gear 810 and a second cylindrical gear 820 are engaged with the mounting cavity 411, and an opening of the mounting cavity 411 is covered with a protection plate 412. The first cylindrical gear 810 and the second cylindrical gear 820 are meshed and hidden in the installation cavity 411, and the protection plate 412 is connected to the opening of the installation cavity 411 in a threaded mode, so that the second transmission mechanism is compactly installed in the connecting frame 400, the overall structure of the embodiment of the invention is further miniaturized in size, and the use and the carrying are convenient. Specifically, the upper plate 410, the connecting plate 430 and the lower plate 420 are integrally formed, so that the assembly process can be reduced, the assembly error can be reduced, and the product quality can be further improved.
As shown in fig. 3 and 5, further, the third transmission mechanism includes a third bevel gear 910 coaxially connected to the second gear shaft 830, the third bevel gear 910 is engaged with a fourth bevel gear 920, the number of teeth of the third bevel gear 910 is less than that of the fourth bevel gear 920, a gear hole of the fourth bevel gear 920 is connected with a rotating shaft 930, and the cutter head 600 is detachably connected to the rotating shaft 930. By arranging the third bevel gear 910 and the fourth bevel gear 920 which are meshed with each other, the intersection angle between the axis of the third bevel gear 910 and the axis of the fourth bevel gear 920 is equal to 90 degrees, so that the force output by the second transmission mechanism is overturned by 90 degrees and transmitted to the cutter head 600, and further, the force output by the driving part 200 is stably and reliably transmitted to the cutter head 600; by detachably connecting the cutter head 600 to the rotary shaft 930, various cutter heads 600 can be replaced according to actual needs to adapt to various threaded fasteners, thereby further expanding the application range of the embodiment of the invention.
Further, the gear ratio of the first bevel gear 710 and the second bevel gear 720 is equal to the gear ratio of the fourth bevel gear 920 and the third bevel gear 910. The arrangement is such that the torque and torque output from the driving part 200 are transmitted to the tool bit 600 in a one-to-one ratio to control the rotation of the tool bit 600.
As shown in fig. 7, in some embodiments of the present invention, the rotary shaft 930 is provided with a square hole 931 to be matched with the coupling portion 610 of the tool bit 600, and the square hole 931 is provided with a magnet for sucking the tool bit 600. By arranging the square hole 931, the cutter head 600 cannot rotate relative to the rotating shaft 930 in the process of rotating and dismounting the threaded fastener; the cutter head 600 is tightly connected in the square hole 931 in a magnet suction mode, and the suction force of the magnet ensures that the cutter head 600 is stably installed in the square hole 931 and cannot be separated from the square hole 931 when the cutter head is used; when the tool bit 600 of different types needs to be replaced, only a pulling force larger than the suction force of the magnet needs to be applied, the original tool bit 600 can be pulled out, and then the required tool bit 600 is replaced, so that the operation is simple.
In some embodiments of the present invention, a nylon member for increasing friction is disposed between the connection surfaces of the rotary housing 300 and the holder housing 100. The nylon part can increase the frictional force between rotating housing 300 and handle of a knife casing 100, and when needs, the user can manually adjust the angle of rotating housing 300 relative to handle of a knife casing 100 and the unable self skew angle of part to adjusting the angle, electric screwdriver is at the in-process of dismouting fastener, and the frictional force of nylon part increase makes and can not produce the rotation between rotating housing 300 and the handle of a knife casing 100.
The application process of the embodiment of the invention is as follows: a user starts the pocket motor to operate through the switch 210, the first bevel gear 710 is driven to move through the output shaft of the pocket motor, the large-end module of the first bevel gear 710 and the large-end module of the second bevel gear 720 are equal, the pressure angles of the first bevel gear 710 and the second bevel gear 720 are equal, the first bevel gear 710 and the second bevel gear 720 are in meshing transmission, the second bevel gear 720 drives the first gear shaft 730 to pull the first cylindrical gear 810 to move, the first cylindrical gear 810 and the second cylindrical gear 820 are meshed with each other, and the third bevel gear 910 on the second gear shaft 830 and the fourth bevel gear 920 on the rotating shaft 930 are meshed with each other, so that the cutter head 600 is driven to rotate. Considering that the rotation speed of the pocket motor does not need to be changed and only needs to change the motion state, the first cylindrical gear 810 and the second cylindrical gear 820 are set to be the same straight-tooth cylindrical gear, and the transmission ratio of the first bevel gear 710 to the second bevel gear 720 and the transmission ratio of the fourth bevel gear 920 to the third bevel gear 910 are equal.
In another embodiment of the invention, a connection hole matched with the connection portion 610 of the cutter head 600 is formed in the rotation shaft 930, a first threaded hole penetrates through the rotation shaft 930 at a position corresponding to the connection hole, a second threaded hole is formed in the connection portion 610 of the cutter head 600 corresponding to the first threaded hole, and a screw passes through the first threaded hole and the second threaded hole to be screwed and fixed. The connecting portion 610 of the tool bit 600 is fixed in the connecting hole through the screw thread, the connection is tight, relative rotation cannot be generated, when other types of tool bits 600 need to be replaced, only the screws need to be loosened, the original tool bit 600 can be detached, and the required tool bit 600 can be replaced.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and variations; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An electric screwdriver with multiple rotary joints is characterized by comprising:
a handle housing (100);
the driving part (200) is used for providing working power, the driving part (200) is arranged in the cutter handle shell (100), the driving end of the driving part (200) extends out of the front end of the cutter handle shell (100), the driving part (200) is electrically connected with a switch (210), and the switch (210) is arranged on the side wall of the cutter handle shell (100);
a rotary housing (300) rotatably connected to the front end of the handle housing (100);
the first transmission mechanism is arranged in the rotary shell (300), and the force input end of the first transmission mechanism is coaxially connected with the driving end of the driving part (200);
a connecting frame (400) hinged with the rotating housing (300);
the second transmission mechanism is arranged in the connecting frame (400), and the force input end of the second transmission mechanism is connected with the force output end of the first transmission mechanism;
a swing case (500) hinged to the front end of the connection frame (400);
the third transmission mechanism is arranged in the swing shell (500), and a force input end of the third transmission mechanism is connected with a force output end of the second transmission mechanism;
and the cutter head (600) is detachably connected to the force output end of the third transmission mechanism.
2. The electric screwdriver with multiple rotary joints according to claim 1, wherein the driving part (200) is a pocket motor, a driver of the pocket motor is controlled by the switch (210) to start and stop, and an output shaft of the pocket motor extends out of the front end of the handle shell (100).
3. The electric screwdriver with multiple rotary joints according to claim 1, wherein the first transmission mechanism comprises a first bevel gear (710) coaxially connected with the driving end of the driving part (200), the first bevel gear (710) is in meshing connection with a second bevel gear (720), the number of teeth of the first bevel gear (710) is greater than that of the second bevel gear (720), a first gear shaft (730) is connected with a gear hole of the second bevel gear (720), the first gear shaft (730) is connected with the force input end of the second transmission mechanism, and the connecting frame (400) is hinged with the rotary housing (300) through the first gear shaft (730).
4. The electric screwdriver with multiple rotary joints according to claim 3, wherein the second transmission mechanism comprises a first cylindrical gear (810) coaxially connected with the first gear shaft (730), the first cylindrical gear (810) is in meshed connection with a second cylindrical gear (820), the first cylindrical gear (810) and the second cylindrical gear (820) are identical gears, a second gear shaft (830) is connected with a gear hole of the second cylindrical gear (820), the second gear shaft (830) is connected with a force input end of the third transmission mechanism, and the connecting frame (400) is hinged with the swing shell (500) through the second gear shaft (830).
5. The electric screwdriver with multiple rotary joints according to claim 4, wherein the connecting frame (400) comprises an upper plate (410) and a lower plate (420), the upper plate (410) and the lower plate (420) are connected through a connecting plate (430), a mounting cavity (411) is formed in the upper plate (410), the first cylindrical gear (810) and the second cylindrical gear (820) are connected to the mounting cavity (411) in a meshed mode, and a protection plate (412) covers an opening of the mounting cavity (411).
6. The screwdriver with multiple rotary joints as claimed in claim 4, wherein said third transmission mechanism comprises a third bevel gear (910) coaxially connected to said second gear shaft (830), said third bevel gear (910) is engaged with a fourth bevel gear (920), the number of teeth of said third bevel gear (910) is less than that of said fourth bevel gear (920), a rotary shaft (930) is connected to a gear hole of said fourth bevel gear (920), and said screwdriver head (600) is detachably connected to said rotary shaft (930).
7. The multi-rotary-joint electric screwdriver according to claim 6, wherein the transmission ratio of the first bevel gear (710) and the second bevel gear (720) is equal to the transmission ratio of the fourth bevel gear (920) and the third bevel gear (910).
8. The electric screwdriver with multiple rotary joints according to claim 6, wherein the rotary shaft (930) is provided with a square hole (931) matched with the connecting portion (610) of the screwdriver bit (600), and the square hole (931) is provided with a magnet for tightly attracting the screwdriver bit (600).
9. The electric screwdriver with multiple rotary joints according to claim 6, wherein the rotary shaft (930) is provided with a connecting hole matched with the connecting part (610) of the screwdriver head (600), a first threaded hole penetrates through the position of the rotary shaft (930) corresponding to the connecting hole, a second threaded hole is arranged on the connecting part (610) of the screwdriver head (600) corresponding to the first threaded hole, and the first threaded hole and the second threaded hole are used for a screw to pass through for threaded connection.
10. The multi-rotary-joint electric screwdriver according to claim 1, wherein a nylon member for increasing friction is disposed between the connection surfaces of the rotary housing (300) and the handle housing (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910982382.5A CN110695903B (en) | 2019-10-16 | 2019-10-16 | Electric screwdriver with multiple rotary joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910982382.5A CN110695903B (en) | 2019-10-16 | 2019-10-16 | Electric screwdriver with multiple rotary joints |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110695903A true CN110695903A (en) | 2020-01-17 |
| CN110695903B CN110695903B (en) | 2024-08-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910982382.5A Active CN110695903B (en) | 2019-10-16 | 2019-10-16 | Electric screwdriver with multiple rotary joints |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618116A (en) * | 2021-08-17 | 2021-11-09 | 湖南工学院 | Screw machine with adjustable drill angle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004255543A (en) * | 2003-02-27 | 2004-09-16 | Makita Corp | Angle power tool |
| CN202318153U (en) * | 2011-10-22 | 2012-07-11 | 宁波市长谷机电有限公司 | Electric screwdriver |
| US20120255751A1 (en) * | 2011-04-07 | 2012-10-11 | Sang-min Lee | Wireless small motor driver having rotation reduction gear |
| CN109249338A (en) * | 2018-11-14 | 2019-01-22 | 上海应用技术大学 | A kind of electric screw driver |
| CA3072082A1 (en) * | 2017-08-10 | 2019-02-14 | Pro-Dex, Inc. | Articulating tool for endoscopic placement of fasteners |
| CN211362045U (en) * | 2019-10-16 | 2020-08-28 | 五邑大学 | Electric screwdriver with multiple rotary joints |
-
2019
- 2019-10-16 CN CN201910982382.5A patent/CN110695903B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004255543A (en) * | 2003-02-27 | 2004-09-16 | Makita Corp | Angle power tool |
| US20120255751A1 (en) * | 2011-04-07 | 2012-10-11 | Sang-min Lee | Wireless small motor driver having rotation reduction gear |
| CN202318153U (en) * | 2011-10-22 | 2012-07-11 | 宁波市长谷机电有限公司 | Electric screwdriver |
| CA3072082A1 (en) * | 2017-08-10 | 2019-02-14 | Pro-Dex, Inc. | Articulating tool for endoscopic placement of fasteners |
| CN109249338A (en) * | 2018-11-14 | 2019-01-22 | 上海应用技术大学 | A kind of electric screw driver |
| CN211362045U (en) * | 2019-10-16 | 2020-08-28 | 五邑大学 | Electric screwdriver with multiple rotary joints |
Non-Patent Citations (1)
| Title |
|---|
| 黄绍华;贺凤宝;张伟;胡建忠;: "电动螺丝刀的设计研究", 中国新技术新产品, no. 22, 25 November 2012 (2012-11-25) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618116A (en) * | 2021-08-17 | 2021-11-09 | 湖南工学院 | Screw machine with adjustable drill angle |
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| CN110695903B (en) | 2024-08-13 |
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