WO2023050483A1 - Procédé de fonctionnement pour tournevis électrique - Google Patents

Procédé de fonctionnement pour tournevis électrique Download PDF

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Publication number
WO2023050483A1
WO2023050483A1 PCT/CN2021/123673 CN2021123673W WO2023050483A1 WO 2023050483 A1 WO2023050483 A1 WO 2023050483A1 CN 2021123673 W CN2021123673 W CN 2021123673W WO 2023050483 A1 WO2023050483 A1 WO 2023050483A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric screwdriver
electric
screwdriver
circuit board
palm rest
Prior art date
Application number
PCT/CN2021/123673
Other languages
English (en)
Chinese (zh)
Inventor
杨勇
Original Assignee
苏州造物空间智能科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州造物空间智能科技有限公司 filed Critical 苏州造物空间智能科技有限公司
Publication of WO2023050483A1 publication Critical patent/WO2023050483A1/fr

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Classifications

    • 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
    • B25B23/16—Handles

Definitions

  • the invention relates to an electric tool, in particular to an operation method of an electric screwdriver.
  • the operation method of the electric screwdriver is an electric tool used for screw installation and disassembly, which includes structures such as a bit, a motor, and a battery.
  • the rear end cannot be placed against the palm of the hand, so that it cannot be conveniently pivoted, thereby affecting the use of the tool. Therefore, in view of the above problems, it is necessary to propose a further solution.
  • the present invention aims to provide an operation method of an electric screwdriver, so as to overcome the deficiencies in the prior art and add a new way of using the electric screwdriver.
  • a method for operating an electric screwdriver comprising: a screwdriver body and a palm rest pivotally connected to the tail end of the screwdriver body;
  • the front part of the screwdriver body forms an operation area, the operation area has a control switch, and the rear area of the screwdriver body forms a grip part;
  • the method of operation includes:
  • the pivot of the palm rest is arranged coaxially with the axis of the screwdriver body, and the palm rest also has a force-bearing surface capable of abutting against a human hand.
  • the palm rest can rotate 360° within the plane where it is located.
  • the holding part is held so that when the palm rest is against the palm of the hand, the electric screwdriver is parallel to the back of the hand or perpendicular to the back of the hand.
  • the control switch includes: a forward rotation button, a reverse rotation button and a speed regulation push button;
  • the forward rotation button and the reverse rotation button are arranged on one side of the front part, and the speed regulating push knob is arranged on the other side of the front part.
  • the electric screwdriver also includes an end cover, the end cover is screwed to the tail end of the housing, and the end surface of the end cover is also equipped with a The palm rest is pivotally connected to the hinge.
  • the electric part of the screwdriver body includes: a housing, a transmission mechanism, a circuit board and a power supply;
  • the power supply is arranged in the battery compartment at the rear of the housing, the transmission mechanism is located in the installation cavity at the front of the housing, the circuit board is located between the transmission mechanism and the power supply, and the power supply passes through
  • the positive electrode piece is electrically connected to the circuit board, the circuit board is also electrically connected to the housing through the negative electrode piece, and the circuit board is electrically connected to the transmission mechanism.
  • the transmission mechanism includes: an output shaft, a positioning sleeve, a shift fork, a straight pin and a motor, one end of the output shaft forms the output end of the electric part, and the shift fork It has a plurality of fork legs and a shift block located between any adjacent fork legs.
  • the cylindrical pin, the positioning sleeve is sleeved on the fork pin of the shift fork, any of the cylindrical pins abuts against the inner surface of the positioning sleeve and the outer surface of the other end of the output shaft, and the motor
  • the motor shaft is connected with the transmission fork.
  • the inner surface of the fork of the shift fork facing the output shaft is a combination of an arc surface, a plane, and an arc surface; the inner surface of the shifting block is combined with a The surface connected to the adjacent fork on one side, and the surface connected to the adjacent fork on the other side, the inner surface of the shift block is inclined towards the center; the other end of the output shaft is abutted against the cylindrical pin
  • the outer surface of is a combination of two planes.
  • the circuit board includes a control circuit board and a speed regulation circuit board arranged up and down, the power supply is electrically connected to the control circuit board through the positive plate, and the control circuit board It is also electrically connected to the casing through the negative plate, the forward rotation button and the reverse rotation button are electrically connected to the control circuit board, and the speed regulation push knob is electrically connected to the speed regulation circuit board.
  • the beneficial effect of the present invention is: the present invention sets a palm rest that can pivot freely at the rear end of the electric screwdriver, so according to the operation method of the present invention, it is beneficial to reduce the stress when the screwdriver is operated.
  • the resistance facilitates the free rotation and operation of the screwdriver, and improves the practicability and comfort of the screwdriver.
  • Fig. 1 is the three-dimensional exploded schematic diagram of an embodiment of the electric screwdriver of the present invention
  • Figure 2 is a schematic plan view of the combination of the output shaft, positioning sleeve, shift fork and cylindrical pin;
  • Fig. 3 is a three-dimensional exploded schematic diagram of the assembly shown in Fig. 2;
  • Fig. 4 is a sectional view of section A when the shift fork is in the active state and rotates clockwise;
  • Fig. 5 is a cross-sectional view of section A when the shift fork is in an active state and rotates counterclockwise;
  • Fig. 6 is a sectional view of section B when the shift fork is in an active state and rotates clockwise;
  • Fig. 7 is a sectional view of section B when the shift fork is in an active state and rotates counterclockwise;
  • Fig. 8 is a sectional view of section A when the output shaft is in active state and rotates clockwise;
  • Fig. 9 is a sectional view of section A when the output shaft is in active state and rotates counterclockwise;
  • Figure 10 is a sectional view of the B section when the output shaft is in the active state and rotates clockwise;
  • Fig. 11 is a cross-sectional view of the B section when the output shaft is in the active state and rotates counterclockwise;
  • Figure 12-15 is the operation method of the electric screwdriver according to one embodiment of the present invention. At this time, hold the grip part so that when the palm rest is against the palm of the hand, the electric screwdriver is parallel to the back of the hand;
  • Fig. 12 corresponds to a schematic diagram of posture of forward rotation control in electric mode
  • Fig. 13 corresponds to a schematic diagram of posture of reverse rotation control in electric mode
  • Fig. 14 corresponds to a schematic diagram of posture of speed regulation in electric mode
  • Fig. 15 corresponds to a schematic diagram of posture of manual mode
  • Figure 16 - is the operation method of the electric screwdriver according to an embodiment of the present invention. At this time, hold the grip part so that when the palm rest is against the palm of the hand, the electric screwdriver is perpendicular to the back of the hand;
  • Fig. 16 corresponds to a schematic diagram of posture of forward rotation control in electric mode
  • Fig. 17 corresponds to a schematic diagram of posture of reverse rotation control in electric mode
  • Fig. 18 corresponds to a schematic diagram of posture of speed regulation in electric mode
  • Fig. 19 corresponds to a schematic diagram of posture of manual mode
  • 20-22 are the operation method of the electric screwdriver according to another embodiment of the present invention.
  • the grip part or the operation area is clamped by the fingers, so that the palm rest is against the middle finger or the index finger;
  • Fig. 20 corresponds to the attitude schematic diagram of forward rotation control in electric mode
  • Fig. 21 corresponds to the attitude diagram of reverse rotation control in electric mode
  • Fig. 22 corresponds to the attitude diagram of manual mode
  • Fig. 23 is an operation method of an electric screwdriver according to another embodiment of the present invention, at this time, the thumb, forefinger and middle finger are used to hold the grip part or operating area of the electric screwdriver.
  • the operating method of an electric screwdriver includes: a bit 10 , an electric part 20 , a housing 30 , an end cover 40 and a palm rest 50 .
  • the electric part 20 is used to realize the rotation of the bit 10, and it is installed in the housing 30, and the bit 10 is installed at one end of the housing 30, and is connected with the output end of the electric part 20 in transmission. In this way, when the electric part 20 is working, it can drive the bit 10 to rotate forward or reversely.
  • the end cover 40 is mounted on the other end of the housing 30 , the palm rest 50 is pivotally connected to the end cover 40 , and the pivot axis of the palm rest 50 is coaxial with the axis of the housing 30 .
  • the operation method of the electric screwdriver can pivot freely relative to the palm rest 50, which in turn helps to reduce the resistance during operation of the operation method of the electric screwdriver, and facilitates the operation of the electric screwdriver. Free rotation of the batch operation method as well as operation.
  • the palm rest 50 also has a force-bearing surface capable of abutting against the hand.
  • the end cover 40 is screwed to the rear end of the housing 30 , and the end surface of the end cover 40 also has a rotating shaft 41 suitable for the pivotal connection of the palm rest 50 .
  • the palm rest 50 is pivotally connected to the rotating shaft 41 through a bearing 51 . Therefore, the palm rest 50 can rotate 360° within the plane.
  • the casing 30 includes: an inner casing 31 and an outer casing 32 .
  • the outer casing 32 is arranged axially through, and the above-mentioned end cap 40 is screwed on the tail end of the outer casing 32, and at the same time, the front end of the outer casing 32 is fastened with a protective cover 33, and the protective cover 33 is arranged axially through, so that The bit 10 can be assembled at the front end of the outer casing 32 .
  • the inner casing 31 is disposed in the outer casing 32 , and correspondingly, the outer casing 32 has a buckle that snaps into the inner casing 31 .
  • Multiple buckles can be provided, and the multiple buckles are distributed on the inner side of the outer casing 32 along the circumferential direction, and snapped into corresponding slots.
  • the inner casing 31 includes: a left casing 311 and a right casing 312 .
  • the end surfaces of the left housing 311 and the right housing 312 are fitted together, and both of them jointly define an assembly space of the electric part 20 .
  • the front part of the above-mentioned assembly space forms an installation cavity, and the rear part forms a battery compartment.
  • the electric part 20 includes: a transmission mechanism 21 , a circuit board 22 and a power supply 23 .
  • the power supply 23 supplies power to the transmission mechanism 21 and the circuit board 22 , and the circuit board 22 controls the operation of the transmission mechanism 21 .
  • the power supply 23 is disposed in the battery compartment at the rear of the housing 30 , and the transmission mechanism 21 is located in the installation cavity at the front of the housing 30 .
  • the transmission mechanism 21 is used to directly drive the bit 10 to pivot, and it includes: an output shaft 211 , a positioning sleeve 212 , a shift fork 213 , a cylindrical pin 214 and a motor 215 .
  • one end of the output shaft 211 forms the output end of the electric part 20, and the bit 10 is plugged into the output end.
  • the output shaft 211 is hollow, the bit 10 can be plugged into the output shaft 211, and the output shaft 211 is also provided with a magnet 216 capable of absorbing the bit 10, so as to prevent batch The head 10 is disengaged from the output shaft 211 .
  • the part of the bit 10 inserted into the output shaft 211 is designed to have at least one edge, so as to facilitate synchronous pivoting with the output shaft 211 .
  • a bearing 217 is also provided between the output shaft 211 and the housing 30 .
  • the shift fork 213 has a plurality of fork legs 2131 and a shift block 2132 located between any adjacent fork legs 2131 .
  • the shift fork 213 is set on the other end of the output shaft 211 through a plurality of fork legs 2131 and the shift block 2132, and a cylindrical pin 214 is arranged between any two adjacent fork legs 2131, and the positioning sleeve 212 is set on the shift fork 213
  • any cylindrical pin 214 abuts against the inner surface of the positioning sleeve 212 and the outer surface of the other end of the output shaft 211 .
  • the motor 215 shaft of the motor 215 is in drive connection with the special-shaped hole offered on the shift fork 213 .
  • the inner surface of the fork foot 2131 of the shift fork 213 facing the output shaft 211 is a combination of an arc surface, a plane, and an arc surface.
  • Two sides of the fork 2131 are 2131A.
  • the surface of the shifting block 2132 connected to the adjacent fork 2131 on one side is 2132A, and the surface connected to the adjacent fork 2131 on the other side is 2132B.
  • the surface 2132A and the surface 3132B are inclined towards the center.
  • the outer surface where the other end of the output shaft 211 abuts against the cylindrical pin 214 is a combination of two planes 211A, 211B.
  • the two sides of the positioning sleeve 212 are also provided with limiting protrusions 2121 that snap into the housing 30 .
  • the circuit board 22 is located between the transmission mechanism 21 and the power supply 23 , the power supply 23 is electrically connected to the circuit board 22 through the positive plate, the circuit board 22 is also electrically connected to the housing 30 through the negative plate, and the circuit board 22 is electrically connected to the transmission mechanism 21 .
  • the circuit board 22 includes: a control circuit board 221 and a speed regulating circuit board 222 arranged up and down.
  • the power supply 23 is electrically connected to the control circuit board 221 through the positive plate 24
  • the control circuit board 221 is also electrically connected to the housing 30 through the negative plate 25 , thus forming a control loop through the housing 30 .
  • the control circuit board 221 has a forward rotation button 223 and a reverse rotation button 224 arranged on one side of the housing 30, and the above-mentioned forward rotation button 223 and reverse rotation button 224 can be connected with corresponding contacts on the control circuit board 221. point against each other.
  • the speed regulating circuit board 222 has a speed regulating push knob 225 disposed on the other side of the housing 30 , so as to facilitate the speed regulating operation.
  • the speed regulating push knob 225 can abut against corresponding contacts on the speed regulating circuit board 222 .
  • the power supply 23 is specifically a battery, and the positive pole of the battery is connected to the circuit board 22 via the above-mentioned positive pole piece 24 .
  • the positive electrode sheet 24 is housed in a pull plate 226, and the positive electrode of the battery can be connected with the positive electrode sheet 24 when stretching in the pull plate 226, so that the battery cannot be connected when it is placed upside down, thereby playing a protective effect.
  • a spring 227 is also provided between the negative electrode of the battery and the end cap 40 .
  • the operation method of the electric screwdriver according to an embodiment of the present invention includes:
  • the operation method of the electric screwdriver in another embodiment of the present invention includes:
  • the operation method at this time is shown in Figure 20-22. Therefore, under this operation method, when the electric screwdriver is not started, the rotation of the electric screwdriver can be manually controlled, thereby realizing the manual operation of the electric screwdriver. Alternatively, the electric screwdriver is started by triggering the forward rotation button or the reverse button, and the speed of the screwdriver is adjusted by adjusting the speed, so that the electric screwdriver can perform electric work under the control of the electric part.
  • the operation method of the electric screwdriver in another embodiment of the present invention includes:
  • the operation method at this time is shown in Figure 23. Therefore, under this operation method, when the electric screwdriver is not started, the rotation of the electric screwdriver can be manually controlled, thereby realizing the manual operation of the electric screwdriver.
  • the electric screwdriver is started by triggering the forward rotation button or the reverse button, and the speed of the screwdriver is adjusted by adjusting the speed, so that the electric screwdriver can perform electric work under the control of the electric part.
  • the present invention arranges a freely pivotable palm rest at the rear end of the electric screwdriver, so according to the operation method of the present invention, it is beneficial to reduce the resistance when the screwdriver is operated, facilitate the free rotation of the screwdriver and The operation improves the practicability of the screwdriver and the comfort during use.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

La présente invention concerne un procédé de fonctionnement pour un tournevis électrique, consistant : à maintenir une portion de préhension afin qu'un repose-paume vienne en butée contre une paume, et de commande manuellement d'un tournevis électrique pour qu'il fonctionne, ou pour le déclenchement, à l'aide d'un commutateur de commande, de la réalisation d'un travail électrique par le tournevis électrique ; ou à serrer la portion de préhension par les doigts de sorte que le repose-paume vient en butée contre un majeur ou un index, et à commander manuellement afin que le tournevis électrique fonctionne ; ou à serrer une région de fonctionnement par les doigts de sorte que le repose-paume vient en butée contre le majeur ou l'index, et pour le déclenchement, à l'aide du commutateur de commande, de la réalisation d'un travail électrique par le tournevis électrique. Selon la présente invention, le repose-paume apte à pivoter librement est disposé à l'extrémité arrière du tournevis électrique, de sorte qu'à l'aide du procédé de fonctionnement de la présente invention, la résistance générée durant le fonctionnement du tournevis peut être réduite avec facilité, la rotation libre et le fonctionnement du tournevis sont pratiques, et la praticabilité du tournevis et le confort durant l'utilisation sont améliorés.
PCT/CN2021/123673 2021-09-28 2021-10-14 Procédé de fonctionnement pour tournevis électrique WO2023050483A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111142991.3 2021-09-28
CN202111142991.3A CN113787484A (zh) 2021-09-28 2021-09-28 电动螺丝批的操作方法

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Publication Number Publication Date
WO2023050483A1 true WO2023050483A1 (fr) 2023-04-06

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PCT/CN2021/123673 WO2023050483A1 (fr) 2021-09-28 2021-10-14 Procédé de fonctionnement pour tournevis électrique

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WO (1) WO2023050483A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN217596957U (zh) * 2022-07-07 2022-10-18 苏州造物空间智能科技有限公司 充电螺丝批

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6170123B1 (en) * 1998-03-07 2001-01-09 Felo Werkzeugfabrik Holland-Letz Gmbh Handle for a hand tool
CN2628227Y (zh) * 2003-07-23 2004-07-28 台臂工业股份有限公司 精密起子结构改良
CN2628232Y (zh) * 2003-07-23 2004-07-28 台臂工业股份有限公司 起子握把结构改良
CN2628224Y (zh) * 2003-07-23 2004-07-28 台臂工业股份有限公司 精密起子结构改良
CN206335510U (zh) * 2016-12-30 2017-07-18 博世电动工具（中国）有限公司 直柄起子机
CN112548956A (zh) * 2019-09-10 2021-03-26 罗伯特·博世有限公司 手持式工具机和用于运行手持式工具机的方法
CN112975816A (zh) * 2021-04-23 2021-06-18 苏州造物空间智能科技有限公司 电动螺丝批

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200948566Y (zh) * 2006-09-11 2007-09-19 姚军 螺丝刀
JP5467757B2 (ja) * 2008-11-14 2014-04-09 株式会社マキタ 作業工具
CN202556319U (zh) * 2012-02-28 2012-11-28 宁波市海联电器有限公司 充电式螺丝批

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6170123B1 (en) * 1998-03-07 2001-01-09 Felo Werkzeugfabrik Holland-Letz Gmbh Handle for a hand tool
CN2628227Y (zh) * 2003-07-23 2004-07-28 台臂工业股份有限公司 精密起子结构改良
CN2628232Y (zh) * 2003-07-23 2004-07-28 台臂工业股份有限公司 起子握把结构改良
CN2628224Y (zh) * 2003-07-23 2004-07-28 台臂工业股份有限公司 精密起子结构改良
CN206335510U (zh) * 2016-12-30 2017-07-18 博世电动工具（中国）有限公司 直柄起子机
CN112548956A (zh) * 2019-09-10 2021-03-26 罗伯特·博世有限公司 手持式工具机和用于运行手持式工具机的方法
CN112975816A (zh) * 2021-04-23 2021-06-18 苏州造物空间智能科技有限公司 电动螺丝批

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