WO2014110776A1 - 双向扳手 - Google Patents

双向扳手 Download PDF

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Publication number
WO2014110776A1
WO2014110776A1 PCT/CN2013/070641 CN2013070641W WO2014110776A1 WO 2014110776 A1 WO2014110776 A1 WO 2014110776A1 CN 2013070641 W CN2013070641 W CN 2013070641W WO 2014110776 A1 WO2014110776 A1 WO 2014110776A1
Authority
WO
WIPO (PCT)
Prior art keywords
pawl
ratchet surface
ratchet
gear
pawl member
Prior art date
Application number
PCT/CN2013/070641
Other languages
English (en)
French (fr)
Inventor
王暋
Original Assignee
杭州巨星工具有限公司
杭州巨星科技股份有限公司
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 杭州巨星工具有限公司, 杭州巨星科技股份有限公司 filed Critical 杭州巨星工具有限公司
Priority to AU2013374087A priority Critical patent/AU2013374087B2/en
Priority to EP13871817.6A priority patent/EP2946884B1/en
Priority to NZ711151A priority patent/NZ711151A/en
Priority to MX2015009163A priority patent/MX360127B/es
Priority to KR1020157022171A priority patent/KR102019293B1/ko
Priority to BR112015017168-0A priority patent/BR112015017168B1/pt
Priority to RU2015134541A priority patent/RU2628597C2/ru
Priority to CA2898263A priority patent/CA2898263C/en
Priority to PCT/CN2013/070641 priority patent/WO2014110776A1/zh
Priority to JP2015552965A priority patent/JP6224732B2/ja
Priority to US14/320,002 priority patent/US9643297B2/en
Priority to US14/320,056 priority patent/US9643298B2/en
Publication of WO2014110776A1 publication Critical patent/WO2014110776A1/zh

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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
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
    • B25B13/465—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis a pawl engaging an internally toothed ring
    • 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
    • B25B17/00—Hand-driven gear-operated wrenches or screwdrivers
    • 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
    • B25B23/0035—Connection means between socket or screwdriver bit and tool
    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • 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
    • B25B15/00—Screwdrivers
    • B25B15/02—Screwdrivers operated by rotating the handle
    • B25B15/04—Screwdrivers operated by rotating the handle with ratchet action

Definitions

  • the present invention relates to hand tools, and more particularly to a two-way wrench.
  • the movement of the hand in the direction of rotation has a certain limit and does not continue in one direction.
  • the axis of rotation of the handle is coaxial with the spindle. This is generally the case: first, turn the handle in a desired direction by hand (for example, tighten or loosen a screw), then reverse the hand. Rotate to reposition the tool to go to the next cycle.
  • the reverse rotation of the hand may be re-held after the handle is released, or may be a one-way device such as a ratchet mechanism in the tool, so that the spindle does not move when the handle is reversed. It is also possible to insert the tool after it is detached from the screw. In any case, the reverse rotation of the hand does not result in effective movement of the fastener, and thus becomes a wasteful action.
  • U.S. Patent No. 5,913,062 discloses a mechanical converter comprising a spindle; and two drive elements mounted on the spindle, a one-way clutch inserted between each drive element and the spindle, and the two on the spindle
  • the engagement direction of the clutch and the main shaft is the same, so that when any one of the driving elements rotates in the direction, the main shaft is dragged and rotated in one direction, and when the driving element is rotated in the reverse direction, the opposite main shaft is idling; a spindle device configured with a rotating device that engages a selected drive element; further comprising a shifting mechanism that simultaneously couples the two drive elements, forcing the two drive elements to always rotate in opposite directions to When one driving element is dragged to rotate the main shaft, the other driving element is idling, so that the main shaft rotates in one direction regardless of the direction in which the driving member rotates, thereby converting the forward and reverse rotation of the rotating device (for example, the handle) into a single spindle.
  • the conversion device of the invention can only rotate the main shaft in one direction, which does not accommodate the need for the main shaft to rotate in two directions, for example, as a torque wrench application, it is necessary to tighten or loosen the fastener, and install the The torque wrench of the inventive conversion device tightens the fastener (or loosens the fastener) as a result of the operation of tightening the fastener to the conventional wrench or the operation of loosening the fastener.
  • the solution that can be considered can only be at both ends of the spindle of the torque wrench (ie, two of the working portions)
  • the ends are all provided with an output end, one end for tightening the fastener and the other end for loosening the fastener.
  • the technical problem to be solved by the present invention is to provide a two-way wrench for conveniently switching the direction of rotation of the main shaft of the torque wrench.
  • the present invention provides a two-way wrench including a working portion and a handle, the working portion including a main shaft for outputting torque and an axis perpendicular to the handle; a driving gear, a driven gear, An intermediate gear shaft and an intermediate gear, wherein the driving gear, the driven gear and the intermediate gear shaft are sleeved on the main shaft, an axis of the intermediate gear shaft is perpendicular to an axis of the main shaft, and the intermediate gear is mounted on The intermediate gear shaft is coupled between the driving gear and the driven gear, wherein the handle drives the driving gear to rotate, and the intermediate gear shaft is fixed with a holding device.
  • the driving gear drives the driven gear to rotate in reverse through the intermediate gear; the first ratchet surface that rotates together with the driving gear, And a second ratchet surface that rotates with the driven gear; a first pawl member and a second pawl member that are rotatable by the spindle; wherein the first pawl member has a first pawl and a second pawl that selectively engage the first ratchet face
  • the first pawl slips with the first ratchet surface in a first direction, and engages with the first ratchet surface in a second direction, the second pawl being first a direction of engagement with the first ratchet surface, in the second direction, slipping with the first ratchet surface;
  • the second pawl element selectively mating with the second ratchet surface a third pawl and a fourth pawl, wherein the third pawl slips with the first ratchet surface in a first direction, and
  • the handle has an annular head, the first ratchet surface being disposed on an inner ring of the annular head.
  • the first ratchet face is disposed on an inner race of the drive gear.
  • the second ratchet surface is disposed on an inner race of the driven gear.
  • the holding device is a grip ring.
  • first pawl element and/or the second pawl element are fan shaped.
  • first pawl element and the second pawl element are mounted on a layshaft, the axis of the layshaft being parallel to the main axis and not coincident with the main shaft, the countershaft Associated with the spindle, the spindle can be rotated.
  • the layshaft is threaded into the main shaft.
  • the reversing switch includes a center post, a first ball plunger and a second ball plunger, the center post being threaded into the main shaft, the first ball plunger And the second ball plunger is sequentially fixed to the center post, the first ball plunger and the second ball plunger being respectively coupled to the first pawl member and the second pawl member Cooperate.
  • a spring is disposed within the first ball plunger and the second ball plunger.
  • the two-way wrench of the present invention implements two modes of operation and can be easily converted between the two modes of operation.
  • the input torque input by the user is an alternating clockwise torque or a counterclockwise torque
  • the output torque of the output end of the bi-directional wrench of the present invention is alternatively a clockwise torque and a counterclockwise direction. Torque.
  • Figure 1 is a front elevational view of a two-way wrench of the present invention.
  • Figure 2 is a cross-sectional view of the two-way wrench shown in Figure 1.
  • Figure 3 shows the transmission within the two-way wrench of the present invention.
  • Figure 4 shows the reversing device within the two-way wrench of the present invention.
  • Figure 5 shows the spindle with the first pawl element and the second pawl element mounted.
  • Figure 6 is a front elevational view of the first pawl member of Figure 5.
  • Figure 7 shows the engagement of the first pawl member with the first ratchet face when the two-way wrench of the present invention is in the first mode of operation.
  • Figure 8 shows a rotary knob for changing the mode of operation of the two-way wrench of the present invention.
  • Figure 9 shows the stop device in the two-way wrench of the present invention.
  • Figure 10 is a side view of the position limiting device shown in Figure 9.
  • a two-way wrench in accordance with an embodiment of the present invention includes a handle 20 and a working portion 10 that extends longitudinally and is sleeved in the working portion by its annular head 21 (see Figure 3). Above 10.
  • a spindle 100 is disposed inside the working portion 10, and a grip ring 102 is provided outside.
  • One end of the main shaft 100 is an output end 101 that extends beyond the head portion 21 of the working portion 10 and the handle 20.
  • the output 101 can be configured to accommodate the configuration of various fasteners, such as external angle screws, by mounting different sleeves.
  • the two-way wrench of the present invention includes a transmission and a reversing device coupled thereto, the input torque from the handle 20 is transmitted to the main shaft 100 of the working portion 10 through the transmission, and the output of the output 101 is selectively outputted by the reversing device
  • the direction of the moment is a first direction or a second direction, wherein the first direction is opposite to the second direction.
  • the input torque of the working portion 10 is a clockwise torque or a counterclockwise torque
  • the output torque outputted by the output terminal 101 is a clockwise torque
  • the input torque of the working portion 10 is a clockwise torque or a counterclockwise torque
  • the output torque outputted by the output terminal 101 is a counterclockwise torque.
  • the structure of the transmission of the two-way wrench of the present invention is as shown in FIG. 3, and includes a first ratchet surface 311, a driving gear 312, a second ratchet surface 321, a driven gear 322, an intermediate gear shaft 330, intermediate gears 331 and 332. .
  • the first ratchet surface 311 is connected to the driving gear 312 and coaxial.
  • the first ratchet surface 311 is fixed to the inner ring of the annular head 21 of the handle 20, and the driving gear 312 is fixedly connected to The head 21 of the handle 20, such that when the handle 20 is rotated, the head 21 of the handle 20 will drive the driving gear 312 to rotate at the same time.
  • the first ratchet surface 311 can also be disposed on the inner ring of the driving gear 312;
  • the second ratchet surface 321 is disposed on the inner ring of the driven gear 322.
  • the tooth faces of the first ratchet surface 311 and the second ratchet surface 321 are opposed to the outer peripheral surface of the main shaft 100;
  • the drive gear 312 and the driven gear 322 are face gears, and the tooth faces of the drive gear 312 and the driven gear 322 are opposed to each other.
  • the first ratchet surface 311, the second ratchet surface 321, the drive gear 312, and the driven gear 322 are all coaxial and their central axes coincide with the central axis of the main shaft 100.
  • the intermediate gear shaft 330 is fixedly coupled to the grip ring 102.
  • the intermediate gears 331, 332 are mounted on the intermediate gear shaft 330, which is perpendicular to the main shaft 100.
  • the intermediate gears 331, 332 are fitted between the driving gear 312 and the driven gear 322, and their teeth are respectively engaged with the teeth on the tooth surfaces of the driving gear 312 and the driven gear 322, and when the holding ring 102 is fixed, that is, the middle When the gear shaft 330 is stationary, When the driving gear 312 rotates, the driven gear 322 is driven to rotate in the opposite direction by the intermediate gears 331, 332.
  • the intermediate gears 331, 332 are all bevel gears.
  • the reversing device of the two-way wrench of the present invention has a structure as shown in FIG. 4, and includes a reversing switch composed of a center post 220, a first ball plunger 221 and a second ball plunger 222, and a first pawl member 211. And a second pawl element 212.
  • the center post 220 is mounted in the main shaft 100, and the first ball plunger 221 and the second ball plunger 222 are sequentially fixed on the center post 220, and the first ball plunger 221 and the second ball plunger 222 are The direction of movement of the ball head portion is perpendicular to the main shaft 110.
  • elastic members such as springs are fitted in the first ball plunger 221 and the second ball plunger 222.
  • the first pawl element 211 and the second pawl element 212 are mounted on the main shaft 100 via the countershaft 210, as shown in FIG. 5, the countershaft 210 is parallel to the main shaft 100 but its central axis does not coincide with the central axis of the main shaft 100, A pawl member 211 and a second pawl member 212 are rotatable about the countershaft 210.
  • the first pawl member 211 and the second pawl member 212 are similar in structure, and each includes a first sector-shaped pawl, a second sector-shaped pawl, and a sector-shaped intermediate portion therebetween.
  • FIG. 6 shows a top view of the first pawl element 211 (ie, the direction along the main shaft 100 toward the output end 101).
  • the first pawl element 211 A first sector-shaped pawl 2111, a second sector-shaped pawl 2112, and a sector-shaped intermediate portion 2110 therebetween are included.
  • the sector-shaped flank of the first sector-shaped pawl 2111, the scalloped surface of the sector-shaped intermediate portion 2110, and the sector-shaped flank of the second sector-shaped pawl 2112 constitute the first surface of the first pawl member 211.
  • the first pawl member 211 also has a second surface, which is a profiled surface, which in the present embodiment includes a recess 2113 having a first side wall 2114 and a second side wall 2115.
  • the first side wall 2114 and the second side wall 2115 both extend in the direction of the main axis 100.
  • the first pawl member 211 has a through hole 2101 that cooperates with the counter shaft 210, and the counter shaft 210 passes through the through hole 2101 to mount the first pawl member 211 on the main shaft 100 (as shown in FIG. 5).
  • the through hole 2101 is provided in the sector-shaped intermediate portion 2110 of the first pawl member 211, preferably at the center of gravity of the first pawl member 211.
  • the structure of the second pawl member 212 is similar to that of the first pawl member 211.
  • the thickness i.e., the length extending along the main shaft 100 in this embodiment is smaller than the thickness of the first pawl member 211, but In other embodiments, the thickness may be equal to the thickness of the first pawl element 211 or greater than the thickness of the first pawl element 211.
  • the first surfaces of the first pawl member 211 and the second pawl member 212 are opposite to the tooth faces of the first ratchet surface 311 and the second ratchet surface 321, respectively, specifically, the sector-shaped pawl of the first pawl member 211
  • the teeth (including the first sector pawl 2111 and the second sector pawl 2112) are opposed to the teeth of the first ratchet surface 311, and the sector pawls of the second pawl member 212 (including the first sector pawl and the second sector)
  • the teeth of the pawl are opposite the teeth of the second ratchet surface 321 .
  • the second surfaces of the first pawl member 211 and the second pawl member 212 are respectively opposed to the surface of the center post 220, specifically, the second surface of the first pawl member 211 and the ball end of the first ball plunger 221 In part, the second surface of the second pawl member 212 is opposite the ball portion of the second ball plunger 222.
  • the teeth of the first sector pawl 2111 of the first pawl member 211 are in contact with the teeth of the first ratchet surface 311, again, the second The teeth of the first sector pawl of the pawl member 212 are in contact with the teeth of the second ratchet surface 321 .
  • the head 21 of the handle 20 drives the first ratchet surface 311 to rotate, when the tooth of the first ratchet surface 311 at the first sector pawl 2111 moves in a direction from the first sector portion 2111 to the second sector portion 2112.
  • the first ratchet surface 311 cannot drive the first pawl member 211 to rotate therewith, that is, the teeth of the first sector pawl 2111 are not engaged with the teeth of the first ratchet surface 311; and when the first sector pawl is in the first sector
  • the direction of movement of the teeth of the first ratchet surface 311 at 2111 is from the second sector portion 2112 toward the first sector portion 2111, that is, when the first ratchet surface 311 is rotated counterclockwise as shown in FIG.
  • the ball working portion of the ball plunger 221 contacts the first side wall 2114 of the recess 2113 of the first pawl member 211, and the first ratchet surface 311 can drive the first pawl member 211 to rotate therewith, that is, the first fan-shaped spine
  • the teeth of the pawl 2111 are engaged with the teeth of the first ratchet surface 311.
  • the rotation of the first pawl member 211 is transmitted to the spindle 100 through the countershaft 210, thereby causing the spindle 100 to rotate.
  • the two-way wrench of the present invention is in the first mode of operation.
  • the first ratchet surface 311 is rotated clockwise, and the second ratchet surface 321 is counterclockwise.
  • first pawl member 211 is not coupled to the first ratchet surface 311, and the second pawl member 212 is coupled to the second ratchet surface 321, whereby the second pawl member 212 rotates the spindle 100 counterclockwise.
  • the output torque is a counterclockwise moment; when the input torque from the working portion 10 is a counterclockwise moment, the first ratchet surface 311 is rotated counterclockwise, and the second ratchet surface 321 is rotated clockwise, at this time the first pawl element
  • the second pawl element 212 is coupled to the first ratchet surface 311, and the second pawl element 212 is not coupled to the second ratchet surface 321, whereby the first pawl element 211 rotates the spindle 100 counterclockwise and the output torque is a counterclockwise moment.
  • the teeth of the second sector pawl 2112 of the first pawl member 211 are in contact with the teeth of the first ratchet surface 311, and likewise, the second pawl member 212 is The teeth of the two sector-shaped pawls are in contact with the teeth of the second ratchet surface 321 .
  • the two-way wrench of the present invention is in the second working mode.
  • the input torque from the working portion 10 is a clockwise moment
  • the first ratchet surface 311 is rotated clockwise
  • the second ratchet surface 321 is counterclockwise.
  • the first pawl member 211 is coupled to the first ratchet surface 311, and the second pawl member 212 is not coupled to the second ratchet surface 321, whereby the first pawl member 211 causes the spindle 100 to rotate clockwise
  • the output torque is a clockwise moment; when the input torque from the working portion 10 is a counterclockwise moment, the first ratchet surface 311 is rotated counterclockwise, and the second ratchet surface 321 is rotated clockwise, at this time the first pawl element
  • the second pawl element 212 is coupled to the second ratchet surface 311, and the second pawl element 212 is coupled to the second ratchet surface 321 whereby the second pawl element 212 rotates the spindle 100 clockwise and the output torque is a clockwise moment.
  • the two-way wrench of the present invention can be switched and selected between the first mode of operation and the second mode of operation.
  • a knob 223 is disposed at the first end of the center post 220, by making the two ears of the center post 220 (such as the ear 2201 in FIG. 8).
  • the embedded knob 223 realizes the cooperation between the center post 220 and the knob 223.
  • the center post 220 can be rotated.
  • the rotary knob 223 in this embodiment is provided with two ridges protruding from the surface of the rotary knob 223, such as the ridge portion 2231, which can be rotated by applying a rotational moment to the two ridges including the ridge portion 2231. Button 223.
  • the two-way wrench of the present invention also includes a stop device that maintains the two-way wrench of the present invention in a selected mode of operation until the user switches to another mode of operation.
  • the limiting device in this embodiment includes a marble 400 disposed between the output end 101 and the second end of the center post 220, and at the second end of the center post 220.
  • the grooves in which the marbles 400 fit are specifically the first grooves 410 and the second grooves 420.
  • the first groove 410 and the second groove 420 extend parallel to each other with a smooth ridge therebetween.
  • the ball working portions of the first and second ball plungers 221, 222 retain their recesses with the first and second pawl members 211, 212, 212
  • the contact of the first side wall that is, the two-way wrench of the present invention is maintained in the first mode of operation;
  • the first ball plunger 221 and the second ball plunger 222 The ball working portion maintains its contact with the second side wall of the recess of the first pawl member 211 and the second pawl member 212, i.e., the two-way wrench of the present invention is maintained in the second mode of operation.
  • the two-way wrench of the present invention enters the second working mode from the first mode of operation;
  • the button 223 rotates the center post 220 and causes the ball 400 to enter the first slot 410 from the second slot 420.
  • the two-way wrench of the present invention enters the first mode of operation from the second mode of operation.
  • the intermediate gear shaft 330 is fixedly coupled to the grip ring 102, and the intermediate gear shaft 330 is fixed relative to the grip ring 102, whereby when the working portion 20 is rotated relative to the grip ring 102, the intermediate gears 331, 332 The direction of rotation of the driven gear 322 is opposite to the direction of rotation of the driving gear 312.
  • the user in order to operate the intermediate gears 331, 332 to ensure that the rotational direction of the second ratchet surface 321 is opposite to the first ratchet surface 311, the user can make the intermediate gear shaft 330 by holding the grip ring 102.
  • the positioning causes the intermediate gears 331, 332 to rotate under the driving of the driving gear 312, thereby driving the driven gear 322 to rotate, thereby rotating the second ratchet surface 321 opposite to the first ratchet surface 311. It should be noted that in other embodiments of the present invention, the intermediate gear shaft 330 may be positioned in other manners to operate the intermediate gears 331, 332.
  • the output end 101 of the two-way wrench of the present invention can be configured by a different sleeve to be configured to operate a variety of fasteners such as an external angle screw.
  • the two-way wrench of the present invention The marbles 400 in the limit device can also be used to latch the respective sleeves mounted to the output end 101.

Abstract

一种双向扳手，包括工作部（10）和手柄（20），所述工作部（10）包括用于输出扭矩且其轴线垂直于所述手柄（20）的主轴（100），套设在所述主轴（100）之上的主动齿轮（312）、从动齿轮（322）和中间齿轮轴（330），所述中间齿轮轴（330）的轴线与所述主轴（100）的轴线垂直，以及安装在所述中间齿轮轴（330）上的中间齿轮（331，332），所述工作部（10）还包括与主动齿轮（312）一起转动的第一棘齿面（311）和与从动齿轮（322）一起转动的第二棘齿面（321），可带动所述主轴（100）转动的第一棘爪元件（211）和第二棘爪元件（212），以及可使所述第一棘爪元件（211）和所述第二棘爪元件（212）处于第一状态和第二状态的换向开关。所述双向扳手可在两种工作模式间转换，在输入扭矩交替变换方向时，输出转矩保持方向不变。

Description

双向扳手
技术领域
本发明涉及手动工具，尤其涉及一种双向扳手。
背景技术
一般螺丝批、力矩扳手之类手动工具的使用中，手在转动方向上的运动有一定的限度，不会是沿着一个方向持续进行的。这类工具中，手柄的转动轴与主轴同轴，使用时一般是这样的：首先，用手朝着某个希望的方向转动手柄（例如拧紧或松开一个螺钉），然后，将手反向旋转，使该工具重新定位以便进入下一循环。在上述循环的第二部分，手的反向旋转可以是放开手柄后再重新握住，也可以是在工具中配有棘齿面机构等单向装置，使手柄反转时主轴不动，还可以是将该工具与螺钉脱离后再插入。但无论如何，手的反向旋转都不会带来紧固件的有效运动，因此成为被浪费的动作。
美国专利US5931062公开了一种机械转换器，包括一个主轴；以及安装在主轴上的两个驱动元件，每个驱动元件与主轴之间都插入有一个单向离合器，且主轴上的这两个单向离合器与主轴的接合方向相同，使得当任一个驱动元件向该方向旋转时，主轴都会被拖动向一个方向转动，而当驱动元件向反方向旋转时，相对主轴是空转；还包括一个沿主轴轴线配置的旋转装置，该旋转装置与一个选定的驱动元件接合；还包括一个转换机构，该转换机构与两个驱动元件同时相联，迫使该两个驱动元件总是反向旋转，以使一个驱动元件拖动主轴转动，另一个驱动元件空转，使得不管驱动部件向哪个方向旋转，主轴都一直向一个方向旋转，从而把旋转装置（例如手柄）的正反转都转换为主轴的单向转动。该机械转换器能够有效利用旋转装置的任意方向的转动，也即，不论手柄是顺时针转动还是逆时针转动，主轴都朝向一个方向转动，从而大大提高了手的运动效率，节约了操作时间。
然而，该发明的转换装置只能使主轴朝着一个方向转动，这并不适应主轴在两个方向上转动的需要，例如，作为力矩扳手应用时需要拧紧或松开紧固件，而安装该发明的转换装置的力矩扳手无论是按对常规扳手的拧紧紧固件的操作还是松开紧固件的操作得到的结果都是拧紧紧固件（或者松开紧固件）。如果期望在安装该发明的转换装置的力矩扳手能够实现拧紧紧固件以及松开紧固件的操作，可以考虑的解决方式只能是在该力矩扳手的主轴的两端（即工作部的两端）皆设置输出端，其中一端用于拧紧紧固件的操作，另一端用于松开紧固件的操作。而这样的设计是累赘的，使用时由于需要注意选择适合要求的输出端，也极不方便。
因此，本领域的技术人员致力于开发一种可以方便地切换主轴转动方向的双向扳手。
发明内容
有鉴于现有技术的上述缺陷，本发明所要解决的技术问题是提供一种双向扳手，实现方便地切换力矩扳手的主轴转动方向。
为实现上述目的，本发明提供了一种双向扳手，包括工作部以及手柄，所述工作部包括主轴，所述主轴用于输出扭矩且其轴线垂直于所述手柄；主动齿轮、从动齿轮、中间齿轮轴以及中间齿轮，所述主动齿轮、从动齿轮和中间齿轮轴均套设在所述主轴之上，所述中间齿轮轴的轴线与所述主轴的轴线垂直，所述中间齿轮安装在所述中间齿轮轴上，并配合在所述主动齿轮和所述从动齿轮之间传动，其中所述手柄带动所述主动齿轮转动，所述中间齿轮轴外固设有一握持装置，当握持住所述握持装置，转动所述手柄带动所述主动齿轮转动时，所述主动齿轮通过所述中间齿轮带动所述从动齿轮反向旋转；与主动齿轮一起转动的第一棘齿面，以及与从动齿轮一起转动的第二棘齿面； 可带动所述主轴转动的第一棘爪元件和第二棘爪元件；其中所述第一棘爪元件具有选择性地与所述第一棘齿面配合的第一棘爪和第二棘爪，其中所述第一棘爪在第一方向上与所述第一棘齿面发生打滑，在第二方向上则与所述第一棘齿面接合传动，所述第二棘爪在第一方向上与所述第一棘齿面接合传动，在第二方向上则与所述第一棘齿面发生打滑；所述第二棘爪元件具有选择性地与所述第二棘齿面配合的第三棘爪和第四棘爪，其中所述第三棘爪在第一方向上与所述第一棘齿面打滑，在第二方向上则与所述第一棘齿面接合传动，所述第四棘爪在第一方向上与所述第一棘齿面接合传动，在第二方向上则与所述第一棘齿面打滑；换向开关，所述换向开关可将所述第一棘爪元件和所述第二棘爪元件设置在第一状态和第二状态，在所述第一状态下，所述第一棘爪和所述第三棘爪同时分别与所述第一棘齿面和第二棘齿面配合；在所述第二状态下，所述第二棘爪和所述第四棘爪同时分别与所述第一棘齿面和第二棘齿面配合； 所述第一方向为顺时针或逆时针方向，所述第二方向为与第一方向相反的方向。
在进一步的实施例中，所述手柄具有环状头部，所述第一棘齿面设置在所述环状头部的内圈上。
在进一步的实施例中，所述第一棘齿面设置在所述主动齿轮的内圈上。
在进一步的实施例中，所述第二棘齿面设置在所述从动齿轮的内圈上。
在进一步的实施例中，所述握持装置为握持环。
在进一步的实施例中，所述第一棘爪元件和/或第二棘爪元件为扇形。
在进一步的实施例中，所述第一棘爪元件和第二棘爪元件安装在副轴之上，所述副轴的轴线与所述主轴平行且不与所述主轴重合，所述副轴与所述主轴相联，可带动所述主轴转动。
在进一步的实施例中，所述副轴穿设在所述主轴之中。
在进一步的实施例中，所述换向开关包括中心柱、第一球头柱塞和第二球头柱塞，所述中心柱穿置于所述主轴内，所述第一球头柱塞和所述第二球头柱塞依次固定在所述中心柱上，所述第一球头柱塞和所述第二球头柱塞分别与所述第一棘爪元件和第二棘爪元件配合。
在进一步的实施例中，所述第一球头柱塞和所述第二球头柱塞内设置有弹簧。
本发明的双向扳手实现了两种工作模式并可在两种工作模式间方便地转换。在使用本发明的双向扳手时，使用者输入的输入力矩为交替的顺时针方向力矩或逆时针方向力矩，本发明的双向扳手的输出端的输出力矩择一地为顺时针方向力矩和逆时针方向力矩。
以下将结合附图对本发明的构思、具体结构及产生的技术效果作进一步说明，以充分地了解本发明的目的、特征和效果。
附图说明
图1是本发明的双向扳手的主视图。
图2是图1所示的双向扳手的截面图。
图3显示了本发明的双向扳手内的传动装置。
图4显示了本发明的双向扳手内的换向装置。
图5显示了安装了第一棘爪元件和第二棘爪元件的主轴。
图6是图5中的第一棘爪元件的正视图。
图7显示了本发明的双向扳手处于第一种工作模式时，第一棘爪元件与第一棘齿面之间的配合。
图8显示了用于改变本发明的双向扳手的工作模式的转钮。
图9显示了本发明的双向扳手内的限位装置。
图10是图9所示的限位装置的侧视图。
具体实施方式
如图1和2所示，根据本发明的一个具体实施例的双向扳手包括手柄20和工作部10，手柄20纵向延伸并通过其环状的头部21（参见图3）套接在工作部10之上。工作部10内部设有主轴100、外部设有握持环102。主轴100的一端为延伸至工作部10和手柄20的头部21之外的输出端101。输出端101可以通过安装不同的套筒以配置成适用于操作外角螺丝等各种紧固件的构形。
本发明的双向扳手包括传动装置和与其联接的换向装置，来自手柄20的输入力矩通过传动装置被传送到工作部10的主轴100，并通过换向装置选择性地使输出端101输出的输出力矩的方向为第一方向或第二方向，其中第一方向与第二方向相反。例如，工作部10的输入力矩为顺时针方向力矩或逆时针方向力矩，输出端101输出的输出力矩为顺时针方向力矩；或者，工作部10的输入力矩为顺时针方向力矩或逆时针方向力矩，输出端101输出的输出力矩为逆时针方向力矩。
本发明的双向扳手的传动装置的结构如图3所示，包括第一棘齿面311、主动齿轮312、第二棘齿面321、从动齿轮322、中间齿轮轴330、中间齿轮331及332。其中，第一棘齿面311和主动齿轮312相连且同轴，本实施例中，第一棘齿面311固设于手柄20的环状的头部21的内圈，主动齿轮312固定连接于手柄20的头部21，这样当手柄20转动时，其头部21会带动主动齿轮312同时转动，在其他实施例中，第一棘齿面311也可设置在主动齿轮312的内圈；第二棘齿面321设置在从动齿轮322的内圈。第一棘齿面311和第二棘齿面321的齿面与主轴100的外周面相对；主动齿轮312和从动齿轮322是面齿轮，主动齿轮312和从动齿轮322的齿面彼此相对。第一棘齿面311、第二棘齿面321、主动齿轮312和从动齿轮322皆同轴且其中心轴线与主轴100的中心轴线重合。
中间齿轮轴330与握持环102固定相连。中间齿轮331、332安装在中间齿轮轴330上，中间齿轮轴330与主轴100垂直。中间齿轮331、332配合在主动齿轮312和从动齿轮322之间，它们的齿分别与主动齿轮312和从动齿轮322的齿面上的齿接合传动，当握持环102固定，亦即中间齿轮轴330固定不动时， 主动齿轮312转动时会通过中间齿轮331、332带动从动齿轮322与其反向旋转。本实施例中，中间齿轮331、332皆为锥齿轮。
本发明的双向扳手的换向装置的结构如图4所示，包括由中心柱220、第一球头柱塞221和第二球头柱塞222构成的换向开关以及第一棘爪元件211和第二棘爪元件212。其中，中心柱220安装于主轴100内，第一球头柱塞221和第二球头柱塞222依次固定在中心柱220上，第一球头柱塞221和第二球头柱塞222的球头部分的活动方向与主轴110垂直，优选地，在第一球头柱塞221和第二球头柱塞222内配合有弹簧等弹性元件。第一棘爪元件211和第二棘爪元件212通过副轴210安装在主轴100上，如图5所示，副轴210平行于主轴100但其中心轴线不重合于主轴100的中心轴线，第一棘爪元件211和第二棘爪元件212可以绕副轴210转动。
第一棘爪元件211和第二棘爪元件212的结构相似，皆包括第一扇形棘爪、第二扇形棘爪和两者之间的扇形中间部分。以第一棘爪元件211为例，图6显示了第一棘爪元件211的顶视图（即沿主轴100向输出端101的方向），从图6中可以看出，第一棘爪元件211包括第一扇形棘爪2111、第二扇形棘爪2112和两者之间的扇形中间部分2110。第一扇形棘爪2111的扇形齿面、扇形中间部分2110的扇形面和第二扇形棘爪2112的扇形齿面构成了第一棘爪元件211的第一表面。第一棘爪元件211还具有第二表面，这是一个异形面，在本实施例中，其包括一个凹部2113，凹部2113具有第一侧壁2114和第二侧壁2115。第一侧壁2114和第二侧壁2115皆主轴100的方向延伸。第一棘爪元件211中具有与副轴210配合的过孔2101，副轴210穿过过孔2101将第一棘爪元件211安装在主轴100上（如图5所示）。本实施例中，过孔2101设置在第一棘爪元件211的扇形中间部分2110，较佳地，设置在第一棘爪元件211的重心处。第二棘爪元件212的结构与第一棘爪元件211相似，在此不赘述，在本实施例中其厚度（即沿主轴100延伸的长度）小于第一棘爪元件211的厚度，但在其他实施例中，其厚度也可与第一棘爪元件211的厚度相等，或者大于第一棘爪元件211的厚度。
第一棘爪元件211和第二棘爪元件212的第一表面分别与第一棘齿面311和第二棘齿面321的齿面相对，具体地，第一棘爪元件211的扇形棘爪（包括第一扇形棘爪2111和第二扇形棘爪2112）的齿与第一棘齿面311的齿相对，第二棘爪元件212的扇形棘爪（包括第一扇形棘爪和第二扇形棘爪）的齿与第二棘齿面321的齿相对。第一棘爪元件211和第二棘爪元件212的第二表面分别与中心柱220的表面相对，具体地，第一棘爪元件211的第二表面与第一球头柱塞221的球头部分相对，第二棘爪元件212的第二表面和第二球头柱塞222的球头部分相对。通过旋转中心柱220，可以使第一球头柱塞221的球头部分接触第一棘爪元件211的凹部2113的第一侧壁2114，同时使第二球头柱塞222的球头部分接触第二棘爪元件212的凹部的第一侧壁，此时本发明的双向扳手处于第一种工作模式；或者，使第一球头柱塞221的球头部分接触第一棘爪元件211的凹部2113的第二侧壁2115，同时使第二球头柱塞222的球头部分接触第二棘爪元件212的凹部的第二侧壁，此时本发明的双向扳手处于第二种工作模式。
当本发明的双向扳手处于第一种工作模式时，如图7所示，第一棘爪元件211的第一扇形棘爪2111的齿与第一棘齿面311的齿接触，同样，第二棘爪元件212的第一扇形棘爪的齿与第二棘齿面321的齿接触。当手柄20的头部21带动第一棘齿面311转动，当在第一扇形棘爪2111处的第一棘齿面311的齿的运动方向为从第一扇形部分2111指向第二扇形部分2112时，即如图7所示的第一棘齿面311顺时针转动时，由于第一球头柱塞221的球头部分接触的是第一棘爪元件211的凹部2113的第一侧壁2114，第一棘齿面311不能带动第一棘爪元件211随其一起转动，即第一扇形棘爪2111的齿与第一棘齿面311的齿不接合传动；而当在第一扇形棘爪2111处的第一棘齿面311的齿的运动方向为从第二扇形部分2112指向第一扇形部分2111时，即如图7所示的第一棘齿面311逆时针转动时，由于第一球头柱塞221的球工作部分接触第一棘爪元件211的凹部2113的第一侧壁2114，第一棘齿面311能带动第一棘爪元件211随其一起转动，即第一扇形棘爪2111的齿与第一棘齿面311的齿接合传动。而第一棘爪元件211的转动通过副轴210传递至主轴100，从而带动主轴100转动。
同时，当在第二棘爪元件212的第一扇形棘爪处的第二棘齿面321的齿的运动方向为从第二棘爪元件212的第一扇形部分指向第二扇形部分时，即第二棘齿面321顺时针转动时，由于第二球头柱塞222的球工作部分接触的是第二棘爪元件212的凹部的第一侧壁，第二棘齿面321不能带动第二棘爪元件212随其一起转动，即第二棘爪元件212的第一扇形棘爪的齿与第二棘齿面321的齿不接合传动；而当在第二棘爪元件212的第一扇形棘爪处的第二棘齿面321的齿的运动方向为从第二棘爪元件212的第二扇形部分指向第一扇形部分时，即第二棘齿面321逆时针转动时，由于第二球头柱塞222的球工作部分接触第二棘爪元件212的凹部的第一侧壁，第二棘齿面321能带动第二棘爪元件212随其一起转动，即第二棘爪元件212的第一扇形棘爪的齿与第二棘齿面321的齿接合传动。而第二棘爪元件212的转动通过副轴210传递至主轴100，从而带动主轴100转动。
由于前述的中间齿轮331、332和主动齿轮312和从动齿轮322的传动，当握持环102固定不动时，第二棘齿面321的转动方向与第一棘齿面311相反。由此可知，在本发明的双向扳手处于第一种工作模式，当自工作部10的输入力矩为顺时针力矩，其使第一棘齿面311顺时针转动，第二棘齿面321逆时针转动，此时第一棘爪元件211与第一棘齿面311不联接，第二棘爪元件212与第二棘齿面321联接，由此，第二棘爪元件212使主轴100逆时针转动，输出力矩为逆时针力矩；当自工作部10的输入力矩为逆时针力矩，其使第一棘齿面311逆时针转动，第二棘齿面321顺时针转动，此时第一棘爪元件211与第一棘齿面311联接，第二棘爪元件212与第二棘齿面321不联接，由此，第一棘爪元件211使主轴100逆时针转动，输出力矩为逆时针力矩。
当本发明的双向扳手处于第二种工作模式时，第一棘爪元件211的第二扇形棘爪2112的齿与第一棘齿面311的齿接触，同样，第二棘爪元件212的第二扇形棘爪的齿与第二棘齿面321的齿接触。当来自工作部10的输入力矩使第一棘齿面311转动，当在第二扇形棘爪2112处的第一棘齿面311的齿的运动方向为从第一扇形部分2111指向第二扇形部分2112时，即第一棘齿面311顺时针转动时，由于第一球头柱塞221的球头部分接触第一棘爪元件211的凹部2113的第二侧壁2115，第一棘齿面311能带动第一棘爪元件211随其一起转动，即第二扇形棘爪2112的齿与第一棘齿面311的齿接合传动；而第一棘爪元件211的转动通过副轴210传递至主轴100，从而带动主轴100转动。而当在第二扇形棘爪2112处的第一棘齿面311的齿的运动方向为从第二扇形部分2112指向第一扇形部分2111时，即第一棘齿面311逆时针转动时，由于第一球头柱塞221的球头部分接触的是第一棘爪元件211的凹部2113的第二侧壁2115，第一棘齿面311不能带动第一棘爪元件211随其一起转动，即第二扇形棘爪2112的齿与第一棘齿面311的齿不接合传动。
同时，当在第二棘爪元件212的第二扇形棘爪处的第二棘齿面321的齿的运动方向为从第二棘爪元件212的第一扇形部分指向第二扇形部分时，即第二棘齿面321顺时针转动时，由于第二球头柱塞222的球头部分接触第二棘爪元件212的凹部的第二侧壁，第二棘齿面321能带动第二棘爪元件212随其一起转动，即第二棘爪元件212的第二扇形棘爪的齿与第二棘齿面321的齿接合传动；而第二棘爪元件212的转动通过副轴210传递至主轴100，从而带动主轴100转动。而当在第二棘爪元件212的第二扇形棘爪处的第二棘齿面321的齿的运动方向为从第二棘爪元件212的第二扇形部分指向第一扇形部分时，即第二棘齿面321逆时针转动时，由于第二球头柱塞222的球工作部分接触的是第二棘爪元件212的凹部的第二侧壁，第二棘齿面321不能带动第二棘爪元件212随其一起转动，即第二棘爪元件212的第二扇形棘爪的齿与第二棘齿面321的齿不接合传动。
由于前述的中间齿轮331、332和主动齿轮312和从动齿轮322的传动，当握持环102固定不动时，第二棘齿面321的转动方向与第一棘齿面311相反。由此可知，在本发明的双向扳手处于第二种工作模式，当自工作部10的输入力矩为顺时针力矩，其使第一棘齿面311顺时针转动，第二棘齿面321逆时针转动，此时第一棘爪元件211与第一棘齿面311联接，第二棘爪元件212与第二棘齿面321不联接，由此，第一棘爪元件211使主轴100顺时针转动，输出力矩为顺时针力矩；当自工作部10的输入力矩为逆时针力矩，其使第一棘齿面311逆时针转动，第二棘齿面321顺时针转动，此时第一棘爪元件211与第一棘齿面311不联接，第二棘爪元件212与第二棘齿面321联接，由此，第二棘爪元件212使主轴100顺时针转动，输出力矩为顺时针力矩。
如前所述地，通过旋转中心柱220，可以使本发明的双向扳手第一种工作模式和第二种工作模式之间切换、选择。为了使用方便，在本实施例中，如图8所示，在中心柱220的第一端部设置了转钮223，通过使中心柱220的两个耳部（如图8中的耳部2201）嵌入转钮223实现中心柱220与转钮223之间的配合。这样，通过转动转钮223，可以使中心柱220旋转。本实施例中的转钮223上设置有两条凸出于转钮223的表面的脊部，如脊部2231，使用时可以通过对包括脊部2231的两条脊部施加旋转力矩以转动转钮223。
本发明的双向扳手还包括限位装置，其使本发明的双向扳手保持在选定的工作模式直到使用者切换到其他的工作模式。如图9和10所示，本实施例中的限位装置包括一个设置在输出端101和中心柱220的第二端部之间的弹珠400，以及在中心柱220的第二端部的弹珠400配合的槽，具体地为第一槽410和第二槽420。第一槽410和第二槽420彼此平行延伸且两者之间由光滑的脊隔开。
当弹珠400在第一槽410内时，第一球头柱塞221和第二球头柱塞222的球工作部分保持其与第一棘爪元件211和第二棘爪元件212的凹部的第一侧壁的接触，即本发明的双向扳手被保持在第一种工作模式；当弹珠400在第二槽420内时，第一球头柱塞221和第二球头柱塞222的球工作部分保持其与第一棘爪元件211和第二棘爪元件212的凹部的第二侧壁的接触，即本发明的双向扳手被保持在第二种工作模式。当转动转钮223，使中心柱220旋转，并使弹珠400从第一槽410进入第二槽420时，本发明的双向扳手从第一种工作模式进入第二种工作模式；当转动转钮223，使中心柱220旋转，并使弹珠400从第二槽420进入第一槽410时，本发明的双向扳手从第二种工作模式进入第一种工作模式。
本实施例中，中间齿轮轴330与握持环102固定连接，中间齿轮轴330相对于握持环102固定，由此当工作部20相对于握持环102转动时，中间齿轮331、332使从动齿轮322的转动方向与主动齿轮312的转动方向相反。在使用中，为了使中间齿轮331、332工作，以保证第二棘齿面321的转动方向与第一棘齿面311相反，使用者可以通过握持握持环102的方式使中间齿轮轴330定位，从而中间齿轮331、332在主动齿轮312的带动下发生旋转，进而带动从动齿轮322旋转，从而使第二棘齿面321与第一棘齿面311反向地旋转。需要说明的是，在本发明的其他实施例中，也可以采取其他的方式定位中间齿轮轴330，而使中间齿轮331、332工作。
另外，如前所述地，本发明的双向扳手的输出端101可以通过安装不同的套筒以配置成适用于操作外角螺丝等各种紧固件的构形，此时，本发明的双向扳手的限位装置中的弹珠400还可以用于对安装于输出端101的各个套筒进行卡位。
以上详细描述了本发明的较佳具体实施例。应当理解，本领域的普通技术无需创造性劳动就可以根据本发明的构思作出诸多修改和变化。因此，凡本技术领域中技术人员依本发明的构思在现有技术的基础上通过逻辑分析、推理或者有限的实验可以得到的技术方案，皆应在由权利要求书所确定的保护范围内。

Claims (10)

  1. 一种双向扳手，包括工作部以及手柄，其特征在于，所述工作部包括
    主轴，所述主轴用于输出扭矩且其轴线垂直于所述手柄；
    主动齿轮、从动齿轮、中间齿轮轴以及中间齿轮，所述主动齿轮、从动齿轮和中间齿轮轴均套设在所述主轴之上，所述中间齿轮轴的轴线与所述主轴的轴线垂直，所述中间齿轮安装在所述中间齿轮轴上，并配合在所述主动齿轮和所述从动齿轮之间传动，其中
    所述手柄带动所述主动齿轮转动，所述中间齿轮轴外固设有一握持装置，当握持住所述握持装置，转动所述手柄带动所述主动齿轮转动时，所述主动齿轮通过所述中间齿轮带动所述从动齿轮反向旋转；
    与主动齿轮一起转动的第一棘齿面，以及与从动齿轮一起转动的第二棘齿面；
    可带动所述主轴转动的第一棘爪元件和第二棘爪元件；其中
    所述第一棘爪元件具有选择性地与所述第一棘齿面配合的第一棘爪和第二棘爪，其中所述第一棘爪在第一方向上与所述第一棘齿面发生打滑，在第二方向上则与所述第一棘齿面接合传动，所述第二棘爪在第一方向上与所述第一棘齿面接合传动，在第二方向上则与所述第一棘齿面发生打滑；
    所述第二棘爪元件具有选择性地与所述第二棘齿面配合的第三棘爪和第四棘爪，其中所述第三棘爪在第一方向上与所述第一棘齿面打滑，在第二方向上则与所述第一棘齿面接合传动，所述第四棘爪在第一方向上与所述第一棘齿面接合传动，在第二方向上则与所述第一棘齿面打滑；
    换向开关，所述换向开关可将所述第一棘爪元件和所述第二棘爪元件设置在第一状态和第二状态，在所述第一状态下，所述第一棘爪和所述第三棘爪同时分别与所述第一棘齿面和第二棘齿面配合；在所述第二状态下，所述第二棘爪和所述第四棘爪同时分别与所述第一棘齿面和第二棘齿面配合；
    所述第一方向为顺时针或逆时针方向，所述第二方向为与第一方向相反的方向。
  2. 如权利要求1所述的双向扳手，其中，所述手柄具有环状头部，所述第一棘齿面设置在所述环状头部的内圈上。
  3. 如权利要求1所述的双向扳手，其中，所述第一棘齿面设置在所述主动齿轮的内圈上。
  4. 如权利要求1所述的双向扳手，其中，所述第二棘齿面设置在所述从动齿轮的内圈上。
  5. 如权利要求1所述的双向扳手，其中，所述握持装置为握持环。
  6. 如权利要求1所述的双向扳手，其中，所述第一棘爪元件和/或第二棘爪元件为扇形。
  7. 如权利要求1所述的双向扳手，其中，所述第一棘爪元件和第二棘爪元件安装在副轴之上，所述副轴的轴线与所述主轴平行且不与所述主轴重合，所述副轴与所述主轴相联，可带动所述主轴转动。
  8. 如权利要求7所述的双向扳手，其中，所述副轴穿设在所述主轴之中。
  9. 如权利要求1所述的双向扳手，其中，所述换向开关包括中心柱、第一球头柱塞和第二球头柱塞，所述中心柱穿置于所述主轴内，所述第一球头柱塞和所述第二球头柱塞依次固定在所述中心柱上，所述第一球头柱塞和所述第二球头柱塞分别与所述第一棘爪元件和第二棘爪元件配合。
  10. 如权利要求9所述的双向扳手，其中，所述第一球头柱塞和所述第二球头柱塞内设置有弹簧。
PCT/CN2013/070641 2013-01-18 2013-01-18 双向扳手 WO2014110776A1 (zh)

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NZ711151A NZ711151A (en) 2013-01-18 2013-01-18 Bidirectional wrench
MX2015009163A MX360127B (es) 2013-01-18 2013-01-18 Llave bidireccional.
KR1020157022171A KR102019293B1 (ko) 2013-01-18 2013-01-18 양방향 렌치
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RU2015134541A RU2628597C2 (ru) 2013-01-18 2013-01-18 Двунаправленный гаечный ключ
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AU2013374087A1 (en) 2015-09-03
BR112015017168A2 (pt) 2017-07-11
MX360127B (es) 2018-10-23
RU2628597C2 (ru) 2017-08-21
KR102019293B1 (ko) 2019-09-06
JP6224732B2 (ja) 2017-11-01
JP2016503732A (ja) 2016-02-08
CA2898263C (en) 2019-04-30
EP2946884B1 (en) 2020-05-20
NZ711151A (en) 2018-04-27
EP2946884A1 (en) 2015-11-25
EP2946884A4 (en) 2016-10-12
CA2898263A1 (en) 2014-07-24
KR20150107850A (ko) 2015-09-23
AU2013374087B2 (en) 2018-05-24
RU2015134541A (ru) 2017-02-22
BR112015017168B1 (pt) 2021-08-10
MX2015009163A (es) 2016-04-25

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