WO2011094960A1 - 可调式快速扳手 - Google Patents
可调式快速扳手 Download PDFInfo
- Publication number
- WO2011094960A1 WO2011094960A1 PCT/CN2010/070915 CN2010070915W WO2011094960A1 WO 2011094960 A1 WO2011094960 A1 WO 2011094960A1 CN 2010070915 W CN2010070915 W CN 2010070915W WO 2011094960 A1 WO2011094960 A1 WO 2011094960A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wrench
- slot
- groove
- lever
- spanner
- Prior art date
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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
- B25B13/10—Spanners; Wrenches with adjustable jaws
-
- 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
- B25B13/10—Spanners; Wrenches with adjustable jaws
- B25B13/28—Spanners; Wrenches with adjustable jaws the jaws being pivotally movable
Definitions
- the present invention relates to a hardware tool, particularly an adjustable quick wrench for use in pipe installation and repair work.
- Quick wrenches are a common tool for pipe installation and repair work to tighten or remove small metal and cylindrical parts.
- the structure of the existing quick wrench is to articulate a wrench that can be rotated along its hinge point on the trigger rod, and the opening angle of the wrench can be adjusted by rotating the wrench when using; the main defect of the structure is the opening angle of the wrench.
- the wrench only has a zigzag pattern on the part of the wrench, and the user may still slip between the wrench and the part when disassembling the surface of the smooth surface.
- the wrench does not function when the bolts and nuts are disassembled, and the wrench of other structures needs to be replaced, which increases the number of tools and carrying, and also increases the cost.
- the object of the present invention is to overcome the above problems in the prior art, and to provide an adjustable quick wrench which has the characteristics of wider use range and quick adjustment of the width of the jaws, and can also be used to raise the conventional bolt and nut to improve Work efficiency.
- an adjustable quick wrench comprising a wrench, at least one wrench, and an articulated shaft for articulating the wrench and the trigger;
- the rear portion of the wrench is provided with a through slot, the center of symmetry of the slot The plane is parallel to the width direction of the jaws;
- the left end of the trigger rod is inserted into the through slot, and the hinge shaft is laterally inserted into the hinge hole passing through the slot walls on both sides of the slot, and the wrench is hinged with the lever;
- the front portion of the lever is further provided with an adjustment groove extending along the length of the lever; the hinge shaft is inserted in the adjustment slot The gap between the two sides of the adjusting groove and the groove wall on both sides of the adjusting groove is maintained, and the sliding direction is consistent with the longitudinal direction of the adjusting groove.
- One side groove wall of the adjusting groove is formed with a plurality of circular arc faces of radius R in sequence, and the other side groove wall is made flat, and the groove walls on both sides of the adjusting groove are arranged, and the arc surface is The planes correspond to each other to form a plurality of cylindrical spaces for facilitating the positioning and rotation of the hinge shaft to facilitate the formation of a jaw of a desired width between the wrench and the trigger.
- the hinge shaft has a T-shaped structure, and a cross section of the main body portion is a waist circular shape, and a width of the waist portion is smaller than a narrowest portion of the adjustment groove to facilitate sliding of the hinge shaft in the adjustment groove.
- the hinge holes on the wrench are respectively a through hole and a waist hole which are matched with the hinge shaft on the groove walls on both sides.
- a spring is also mounted on the hinge shaft of the quick wrench.
- Both ends of the lever are respectively hinged with a wrench.
- the right end of the lever further has a plum blossom hole.
- the force receiving surfaces of the wrench are all made with a sawtooth pattern for anti-slip.
- the use principle of the invention is as follows: since the hinge shaft is fixed on the wrench and moves along with the wrench; when the wrench lever is opened at a certain angle, the plane portion of the surface of the hinge shaft faces the front The side groove wall, the wrench can carry the hinge shaft to slide in the adjusting groove of the trigger rod; when the hinge shaft stays at a certain arc surface portion of the adjusting groove and rotates counterclockwise (shown in FIG. 1), the hinge shaft At the same time, the cylinder meshes with the wall surfaces of the groove walls on both sides, and the wrench is positioned (so that it cannot slide in the adjustment groove), and the reaction force generated when the wrench is mixed with the component can be withstood. When the hinge shaft stays in the different arc surface portions of the adjustment groove, jaws of different widths can be formed.
- the beneficial effects of the present invention are: Since the adjusting groove is formed at the front portion of the trigger rod, the range of the jaw width adjustment formed between the wrench and the trigger rod is significantly expanded, so that the present invention can be applied to a larger size range of parts, Therefore, the application range is significantly expanded; and the use of the wrench is convenient and quick, and the work efficiency is improved. The rate is generally welcomed by the market.
- FIG. 1 is a schematic front view showing the structure of the present invention.
- Figure 2 is an enlarged schematic view of the front portion of the lever of Figure 1.
- Figure 3 is a schematic enlarged plan view of the front portion of the lever of Figure 1.
- Figure 4 is an enlarged plan view showing the main structure of the wrench of Figure 1.
- Figure 5 is a schematic view of the A-direction structure of Figure 3.
- Figure 6 is an enlarged schematic view showing the rear view of the wrench of Figure 1.
- Fig. 7 is a schematic enlarged plan view showing the hinge shaft and the fixing nut in the present invention.
- Figure 8 is a cross-sectional view taken along line B-B of Figure 7.
- Figure 9 is a schematic front view of the double-headed wrench.
- Figure 10 is a front view showing the structure of the lever in the double-ended wrench.
- Figure 11 is a structural schematic view of a spanner wrench with a plum blossom pull hole.
- Figure 12 is a schematic view showing the structure of the wrench with increased zigzag on the force receiving surface.
- Figure 13 is a perspective view showing the structure of a coil spring equipped with the present invention.
- the adjustable quick wrench includes a trigger lever 2, at least one wrench 1 and an articulated shaft 3 hingedly connected to the wrench lever; the hinge shaft is fixed at one end of the wrench (the axis and the hinge of the hinge shaft) 1 paper plane is vertical); a jaw of a certain width Q is formed between the wrench 2 and the wrench 1 (the jaw width direction is parallel to the plane of the paper of FIG. 1) for fastening or disassembling small metal and cylindrical parts;
- the rear portion of the wrench 1 is formed with a through groove 5, and the symmetrical center plane of the through groove is parallel to the width direction of the jaw; the front end of the ram (the left end of FIGS.
- the hinge shaft 3 is laterally inserted across the groove walls on both sides of the through groove
- a hinge hole at the front end of the wrench (the hinge has a hinge hole matched with the hinge shaft, the hole laterally traverses the groove walls on both sides of the through groove 5), and the wrench is hinged with the wrench.
- the present invention also has an adjustment groove 4 at the front portion of the lever 2 (on the left side of Fig. 1) which extends in the length direction of the lever (the length of the adjustment groove is determined as needed).
- One side groove wall of the adjusting groove 4 is formed with a plurality of arc faces 4-1 having a radius R connected in sequence, and the other side is formed into a plane 4-2 (shown in FIG. 2); On the wall, the arc surface 4-1 and the plane 4-2 correspond to each other to form a plurality of cylindrical spaces (shown by a two-dot chain line 3-3 in Fig. 2), which are used as a space for positioning and rotating the hinge shaft; After the shaft is positioned in each cylindrical space, the wrench can form a clamp of the desired width.
- the hinge shaft 3 has a T-shaped structure (as shown in FIG. 7), and the main body 3-1 is formed into a cylinder having a circular cross section; the hinge shaft 3 passes through the adjusting groove 4 and passes through a nut 3 -2 is fixed to the wrench. It is obvious that the width of the waist portion of the hinge shaft 3 should be smaller than the narrowest portion of the adjustment groove so that the hinge shaft can slide in the adjustment groove.
- a through hole 5-3 having a radius R matching the hinge shaft and a waist matching the hinge shaft are respectively formed on the groove walls on both sides of the wrench (the left groove wall 5-5 and the right groove wall 5-1)
- the circular hole 5-4 (shown in Figs. 4 and 6) constitutes the aforementioned hinge hole. In this way, the hinge shaft 3 is inserted into the hinge hole and can completely follow the movement of the wrench, so that the adjustment of the wrench is more flexible and convenient.
- a spring (preferably a coil spring) is further sleeved on the hinge shaft 3 of the quick wrench, and two ends of the coil spring (shown in FIG. 13) which are sleeved on the hinge shaft 3 are respectively formed into a hook shape, and two bends are respectively formed.
- the hooks are respectively hooked and fixed on the plunger 5-5 in the through groove 5 and the groove wall of the adjustment groove 4 (so that the spring does not slip), so that the spring can respectively apply force to the trigger lever and the wrench, so that the wrench has Potential energy that turns in the direction of the jaws.
- Figure 9 is a second embodiment of the present invention, in which a second wrench 9 is added to the right end of the lever; the structure of the second wrench 9 and the hinge structure and the manner of the lever are completely the same as those of the left end of the wrench 3 ( Same through the second hinge
- the connecting shaft 8 is hinged on the trigger rod; the right end of the pulling rod is also provided with a second adjusting groove 7); only the size of the second wrench 9 and the size of the wrench 3 should be different (can be determined according to needs), so that the second wrench
- the width H of the second jaw formed by the head 9 can be larger or smaller than the width Q of the jaws of the wrench 3, so that the range of use of the quick wrench is multiplied.
- Figure 11 is a third embodiment of the present invention, in which a plum blossom wrench hole 6 is formed at the right end of the trigger lever (the size of the plum blossom wrench hole can be determined as needed), so that it has the function of a wrench; Use, reduce the user's tool carrying capacity; and the changes are simple and easy.
- Figure 12 is a fourth embodiment of the present invention in which the zigzag pattern is formed in all areas of the force receiving surface 1-1 of the wrench; the saw teeth are regularly arranged, and the lateral extension directions of each of the saw teeth are connected to the hinge shaft.
- the axes are parallel.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Description
可调式快速扳手
技术领域
本发明涉及一种五金工具， 特别是管道安装和修理工作时使用的可调节式 快速扳手。
背景技术
快速扳手是管道安装和修理工作的常用工具， 用于紧固或拆卸小型金属和 圆柱形零件。 现有快速扳手的结构是在扳杆上铰接一可沿其铰接点转动的扳头， 使用时可通过转动扳头来调节扳手的张开角度； 该种结构的主要缺陷是扳手的 张开角度尚有一定局限， 对于更大尺寸范围内的零件则无法适用， 使用者需换 用其他规格的扳手才能进行继续工作， 因而对工作效率造成了影响。 另外， 该 种扳手只是在扳头的部分受力面制有锯齿紋， 使用者在拆装光滑表面的零件时， 扳头与零件之间仍有可能发生打滑。 而且， 该种扳手在拆装螺栓和螺母时无法 发挥作用， 需换用其它结构的扳手， 增加了工具的配备和携带数量， 也增加了 成本。
发明内容
本发明的目的在于克服背景技术中存在的上述问题， 提供一种可调式快速 扳手， 该快速扳手具有使用范围更广、 能快速调节钳口宽度的特点， 还能扳动 常规螺栓螺母， 以提高工作效率。
本发明提出的技术方案是： 可调式快速扳手， 包括扳杆、 至少一个扳头以 及将扳头与扳杆铰接的铰接轴； 所述扳头的后部制有通槽， 通槽的对称中心平 面与钳口的宽度方向平行； 所述扳杆的左端插入该通槽中， 铰接轴横向插入穿 越通槽两侧槽壁的铰接孔后将扳头与扳杆铰接； 其特征在于： 所述扳杆的前部 还制有调节槽， 该调节槽沿扳杆的长度方向伸展； 所述的铰接轴穿插在调节槽
中， 并与调节槽的两侧槽壁之间保持着利于两者相对滑动的间隙， 滑动方向与 调节槽的长度方向一致。
所述调节槽的一侧槽壁制成若干个依次连接的半径为 R的圆弧面， 另一侧槽 壁制成平面， 并且， 调节槽两侧槽壁上， 所述的圆弧面与平面相互对应形成若 干个便于铰接轴定位且转动的柱形空间， 以利于扳头与扳杆之间形成所需宽度 的钳口。
所述铰接轴为 T形结构， 其主体部分的横截面为腰圆形， 腰圆部位的宽度小 于所述调节槽的最窄部位以利于铰接轴在调节槽中滑动。
所述扳头上的铰接孔分别是两侧槽壁上与铰接轴相匹配的通孔和腰圆孔。 所述快速扳手的铰接轴上还穿套安装一弹簧。
所述扳杆的两端分别铰接一扳头。
所述扳杆的右端还制有一梅花扳孔。
所述扳头的受力面全部制有用于防滑的锯齿紋。
本发明的使用原理是： 由于铰接轴固定在扳头上， 跟随着扳头一同运动； 所以当扳头扳杆与张开一定的角度时， 由于铰接轴表面的平面部位正向面对着 一侧槽壁， 扳头可携带着铰接轴在扳杆的调节槽中滑动； 当铰接轴在调节槽的 某一处圆弧面部位停留并逆时针转动后 （图 1所示）， 铰接轴的柱面同时与两侧 槽壁的壁面啮合， 对扳头实现了定位 （使其无法在调节槽中滑动）， 即可承受扳 手拌动零件时所产生的反作用力。 当铰接轴停留在调节槽中不同圆弧面部位时， 就可形成不同宽度的钳口。
本发明的有益效果是： 由于在扳杆的前部制作了调节槽， 扳头与扳杆之间 形成的钳口宽度调节范围得到了显著扩大， 使得本发明能够适用更大尺寸范围 的零件， 因而显著扩大了应用范围； 而且扳手的使用方便快捷， 提高了工作效
率， 受到市场的普遍欢迎。
附图说明
图 1是本发明的主视结构示意图。
图 2是图 1中扳杆前部的放大结构示意图。
图 3是图 1中扳杆前部的俯视放大结构示意图。
图 4是图 1中扳头的主视结构放大图。
图 5是图 3中的 A向结构示意图。
图 6是图 1中扳头的后视结构放大示意图。
图 7是是本发明中的铰接轴及固定螺母的放大结构示意图。
图 8是图 7中 B-B向剖视示意图。
图 9是双头扳手的主视结构示意图。
图 10是双头扳手中的扳杆的主视结构示意图。
图 11是带有梅花扳孔的活动扳手的结构示意图。
图 12是受力面上增加锯齿紋的扳头结构示意图。
图 13是本发明所配备的螺旋弹簧的立体结构示意图。
具体实施方式
以下通过说明书附图， 对本发明的技术方案作进一步说明。
如图所示， 该可调式快速扳手， 包括扳杆 2、 至少一个扳头 1以及将扳头扳 杆铰接连接的铰接轴 3 ; 该铰接轴固定在扳头的一端 （铰接轴的轴线与图 1的纸 张平面垂直）； 扳杆 2与扳头 1之间形成一定宽度 Q的钳口 （钳口宽度方向与图 1的 纸张平面平行）， 用于紧固或拆卸小型金属和圆柱形零件； 所述扳头 1的后部制 有通槽 5， 通槽的对称中心平面与钳口宽度方向平行； 扳杆前端 （图 1、 图 2的左 端）插入该通槽中且保持可滑动状态； 铰接轴 3横向插入跨越通槽的两侧槽壁以
及扳杆前端的铰接孔 （扳头上制有与铰接轴配合的铰接孔， 该孔横向穿越通槽 5 的两侧槽壁）， 将扳头与扳杆铰接。 以上是扳手的常规结构。
本发明在扳杆 2的前部 （图 1的左侧）还制有调节槽 4， 该调节槽沿扳杆的长 度方向伸展 （调节槽长度根据需要确定）。
所述调节槽 4的一侧槽壁制成若干个依次连接的半径为 R的圆弧面 4-1， 另一 面制成平面 4-2 (图 2所示）； 并且， 调节槽两侧槽壁上， 圆弧面 4-1与平面 4-2相 互对应形成若干个柱形空间 （如图 2中的双点划线 3-3所示）， 作为铰接轴定位和 转动的空间； 使铰接轴在每一柱形空间内定位后， 扳手能够形成所需宽度的钳 □。
所述铰接轴 3为 T形结构 （如图 7所示）， 其主体 3-1制成横截面为腰圆形的柱 体； 该铰接轴 3横向穿越调节槽 4后， 又通过一螺母 3-2固定在所述的扳头上。 显 然， 铰接轴 3的腰圆部位宽度应小于调节槽的最窄部位， 以使铰接轴能够在调节 槽中滑动。
扳头两侧槽壁 （左侧槽壁 5-5和右侧槽壁 5-1 ) 上分别制有与铰接轴相匹配 的半径为 R的通孔 5-3和与铰接轴相匹配的腰圆孔 5-4 (如图 4、 图 6所示）， 组成 前述的铰接孔。如此，铰接轴 3插入固定在铰接孔后能够完全跟随扳头一起运动， 使得扳手的调节更加灵活方便。
所述快速扳手的铰接轴 3上还穿套安装一弹簧 （优选螺旋弹簧）， 穿套在铰 接轴 3上的螺旋弹簧 （图 13所示） 的两端分别制成弯钩状， 两个弯钩分别勾扎固 定在通槽 5中的插杆 5-5上和调节槽 4的槽壁上 （使得弹簧不会滑脱）， 使得弹簧 能够分别对扳杆和扳头施力， 使扳头具有往钳口方向转动的势能。
图 9是本发明的第二个实施例， 在扳杆的右端增设第二扳头 9; 该第二扳头 9 的结构以及与扳杆的铰接结构、 方式完全与左端的扳头 3相同 （同样通过第二铰
接轴 8铰接在扳杆上； 扳杆的右端同样制有第二调节槽 7 ) ; 只是第二扳头 9的大 小与扳头 3的大小应当不同 （可根据需要确定）， 这样第二扳头 9所形成的第二钳 口的宽度 H就能大于或小于扳头 3钳口的宽度 Q, 使快速扳手的使用范围得到成倍 拓展。
图 11作为本发明的第三个实施例， 是在扳杆的右端制作一梅花扳孔 6 (该梅 花扳孔的大小可根据需要确定）， 使其具有梅花扳手的功能； 这样可增加扳手的 用途， 减少了使用者的工具携带量； 而且所作的改动简单易行。
图 12作为本发明的第四个实施例， 是在扳头的受力面 1-1的全部区域都制有 锯齿紋； 这些锯齿均规则排列，每个锯齿的横向伸展方向均与铰接轴的轴线平 行。 通过上述改进， 使该扳手在使用时， 扳头对零件的钳压面均是锯齿紋， 明 显增加了摩擦系数， 减少了打滑的可能， 使扳手使用时更加稳定可靠。
Claims
1、 可调式快速扳手， 包括扳杆 （2)、 至少一个扳头 （1 ) 以及将扳头与扳 杆铰接的铰接轴 （3 )， 所述扳头的后部制有通槽 （5 )， 通槽的对称中心平面与 钳口的宽度方向平行， 所述扳杆的左端插入该通槽中， 铰接轴 （3 ) 横向插入穿 越通槽两侧槽壁的铰接孔后将扳头与扳杆铰接； 其特征在于： 所述扳杆的前部 还制有调节槽 （4)， 该调节槽沿扳杆的长度方向伸展； 所述的铰接轴 （3 ) 穿插 在调节槽中， 并与调节槽的两侧槽壁之间保持着利于两者相对滑动的间隙。
2、 根据权利要求 1所述的可调式快速扳手， 其特征在于所述调节槽的一侧 槽壁制成若干个依次连接的半径为 R的圆弧面 （4-1 )， 另一侧槽壁制成平面
(4-2 )， 并且， 调节槽两侧槽壁上， 所述的圆弧面与平面相互对应形成若干个 便于铰接轴定位且转动的柱形空间。
3、 根据权利要求 1或 2所述的可调式快速扳手， 其特征在于所述铰接轴 （3 ) 为 T形结构， 其主体 （3-1 ) 的横截面为腰圆形， 腰圆部位的宽度小于所述调节 槽的最窄部位以利于铰接轴在调节槽中滑动。
4、 根据权利要求 3所述的可调式快速扳手， 其特征在于所述扳头上的铰接 孔分别是两侧槽壁上与铰接轴相匹配的通孔 （5-3 ) 和腰圆孔 （5-4)。
5、 根据权利要求 4所述的可调式快速扳手， 其特征在于所述快速扳手的铰 接轴 （3 ) 上还穿套安装一弹簧。
6、 根据权利要求 5所述的可调式快速扳手， 其特征在于所述扳杆的两端分 别铰接一扳头。
7、 根据权利要求 5所述的可调式快速扳手， 其特征在于所述扳杆的右端还 制有一梅花扳孔 （6)。
8、 根据权利要求 5所述的可调式快速扳手， 其特征在于所述扳头的受力面 ( 1-1 ) 上全部制有用于防滑的锯齿紋。
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020111860XU CN201645379U (zh) | 2010-02-04 | 2010-02-04 | 可调式快速扳手 |
| CN201020111856.3 | 2010-02-04 | ||
| CN201020111860.X | 2010-02-04 | ||
| CN201020111868.6 | 2010-02-04 | ||
| CN2010201118506U CN201645371U (zh) | 2010-02-04 | 2010-02-04 | 两用可调式快速扳手 |
| CN201020111850.6 | 2010-02-04 | ||
| CN2010201118563U CN201613519U (zh) | 2010-02-04 | 2010-02-04 | 双头可调式快速扳手 |
| CN2010201118686U CN201645380U (zh) | 2010-02-04 | 2010-02-04 | 两面锯齿可调式快速扳手 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011094960A1 true WO2011094960A1 (zh) | 2011-08-11 |
Family
ID=44354903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2010/070915 WO2011094960A1 (zh) | 2010-02-04 | 2010-03-08 | 可调式快速扳手 |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2011094960A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI560031B (zh) * | 2015-10-20 | 2016-12-01 | yu-xiang Huang |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034891U (zh) * | 1988-03-31 | 1989-03-29 | 蒋小钢 | 无级自调节卡紧多功能扳手 |
| CN2036887U (zh) * | 1988-11-11 | 1989-05-03 | 吴东升 | 万能活扳手 |
| US4893528A (en) * | 1989-03-21 | 1990-01-16 | Chung Hsing Chang | Adjustable spanner |
| US5746097A (en) * | 1997-02-19 | 1998-05-05 | Mccann; Frank | Wrench having a spring biased jaw |
| CN2292637Y (zh) * | 1997-05-28 | 1998-09-30 | 章中兴 | 改进构造的扳手 |
-
2010
- 2010-03-08 WO PCT/CN2010/070915 patent/WO2011094960A1/zh active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034891U (zh) * | 1988-03-31 | 1989-03-29 | 蒋小钢 | 无级自调节卡紧多功能扳手 |
| CN2036887U (zh) * | 1988-11-11 | 1989-05-03 | 吴东升 | 万能活扳手 |
| US4893528A (en) * | 1989-03-21 | 1990-01-16 | Chung Hsing Chang | Adjustable spanner |
| US5746097A (en) * | 1997-02-19 | 1998-05-05 | Mccann; Frank | Wrench having a spring biased jaw |
| CN2292637Y (zh) * | 1997-05-28 | 1998-09-30 | 章中兴 | 改进构造的扳手 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI560031B (zh) * | 2015-10-20 | 2016-12-01 | yu-xiang Huang |
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