CN103438168A - Butt-spring-type linkage - Google Patents
Butt-spring-type linkage Download PDFInfo
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- CN103438168A CN103438168A CN2013103943652A CN201310394365A CN103438168A CN 103438168 A CN103438168 A CN 103438168A CN 2013103943652 A CN2013103943652 A CN 2013103943652A CN 201310394365 A CN201310394365 A CN 201310394365A CN 103438168 A CN103438168 A CN 103438168A
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Abstract
The invention relates to a mechanical linkage, particularly a butt-mode mechanical linkage using a lever swing structure. The product is composed of a left pressure bracket module, a lever bracket module and a right pin wheel module, and comprises fourteen parts, such as pulley, wheel pin, adjustable wheel seat, cotter pin, lower fixed nut, upper fixed nut, fastening nut, gasket, lever arm, hinge pin seat, hinge pin and the like. The product overcomes the defects of huge structure, complex control, complex operation and the like in the known linkage, and forms a mechanical swing linkage which has the characteristics of compact structure, wide application range, broad adaptability and the like. The invention can be widely used in many equipment population operation occasions, and especially can adapt to the demands for application in dense-type precise mechanical operations. Besides, the invention is simple to implement and easy to manufacture. The product has the advantages of elegant appearance, high firmness and durability and wide market space, and has high industrial application value and economical added value.
Description
Technical field
The present invention relates to a kind of mechanical linkage, especially relate to and a kind ofly adopt the lever swing structure, using and answer back to the mechanical linkage device as mode.
Background technique
Clutch, refer to a kind ofly in machinery group's operation, when an equipment changes, makes another one or a plurality of equipment ensue the device of variation.Current known clutch, generally by multiple devices such as computer, relay, motor, press machines, constituted jointly, wherein, computer is mainly used in interlock and controls, and relay, motor, press machine etc. are mainly the instruction that computer sends corresponding physics power is provided.Although known like this clutch can be realized the purpose of mechanical linkage, but equipment is huge, control very complicated, the variation that simply links of many scripts, become and need too fat to move device, need high-grade, precision and advanced equipment, thereby caused the waste of material resources and space resources, have influence on the use function of existing known linkage, with and accommodation and social economic value.
Summary of the invention
Purpose of the present invention, be to overcome current known clutch equipment huge, control complicated, use the defects such as loaded down with trivial details, a kind of mechanical linkage of uniqueness is provided to the public.This device is except can be as known interlocking equipment, the equipment be associated is occurred outside the interlock variation, can also significantly reduce equipment volume and cost, reduce operational loaded down with trivial details, realize connected effect accurately with the most easy machinery, thereby improved use function, accommodation and the social economic value of linkage.
The scheme that technical solution problem of the present invention adopts is:
(1) product is divided into to left pressure frame, bridge, three modules of right pin wheel and designs, wherein, interlock signal and interlock energy that right pin wheel module sends over for accepting initial interlocking equipment; The interlock signal that the bridge module is accepted for transmitting right pin wheel, and for changing the speed and vigor of interlock energy; Left pressure frame module sends next interlocking equipment to for will link signal and interlock energy;
(2) design the body element of an adjustable wheel seat part as left pressure frame module, realize this module and by the distance adjustment function between interlocking equipment;
(3) in left pressure frame module, design a slide part as product and the amboceptor that contacts by between interlocking equipment, and standby vertical the shock and the hypotenuse two kinds of forms of pressure of inclining of the output device of the energy that makes to link;
(4) design the body element of an arm part as the bridge module, the interlock energy that makes to be passed obtains the change aspect speed and vigor in this module;
(5) design a hinge pin part, as the fulcrum of arm part transmission interlock energy;
(6) design a hinge pin seat part, the hinge pin part externally is fixed on frame;
(7) at an end of arm part, a pulley base is set, in order to install, links right pin wheel module;
(8) at the other end of arm part, an adjustment seat is set, in order to install, links left pressure frame module;
(9) this module in right pin wheel module, designs the body element of a pulley as this module, so that can be accepted interlock signal and the interlock energy that outside passes over to answer back to two kinds of modes of side pressure.
By the enforcement of above-mentioned a series of technological schemes, product of the present invention, except having the advantage identical with known clutch, can also be obtained following beneficial effect:
(1) structure is capable and vigorous--and whole product only is comprised of left pressure frame, bridge, three modules of right pin wheel, part is no more than 15, the linkage functions such as the strength that acceptance interlock signal, transmission interlock energy, change dynamic speed, change power strength, conveying linkage signal, output can be linked are in one, and structure is capable and vigorous.
(2) of many uses--product is except can transmitting the interlock signal, can also be by the adjusting of adjustable wheel seat and the adjustment of hinge pin position, realize the control of the aspects such as interlock energy movement stroke, interlock energy movement speed, interlock energy transmission frequency, of many uses.
(3) wide adaptability--the superior spy that stroke, control rate, control frequency were simplified, controlled to product with its structure sends out, and can be widely used in plurality of devices colony operation occasion, especially can adapt to the use needs of intensive precise and tiny mechanical work, wide adaptability.
In addition, that the present invention also have to implement is simple, manufacture easy advantage, the product structure that forms elegant in appearance, solid durable, the market space is wide, has higher industrial application value and Economic Value Added.
Below, in conjunction with an embodiment and accompanying drawing, the invention will be further described.
The accompanying drawing explanation
Fig. 1 is one embodiment of the invention product Organizational Structure exemplary plot.
Fig. 2 is the left pressure frame module of one embodiment of the invention part exemplary plot.
Fig. 3 is one embodiment of the invention adjustable seats design of part exemplary plot.
Fig. 4 is one embodiment of the invention bridge module part exemplary plot.
Fig. 5 is one embodiment of the invention arm design of part exemplary plot.
Fig. 6 is one embodiment of the invention hinge pin seat design of part partial cutaway exemplary plot.
Fig. 7 is one embodiment of the invention hinge pin design of part exemplary plot.
Fig. 8 is the right pin wheel module part of one embodiment of the invention exemplary plot.
Fig. 9 is one embodiment of the invention Product Assembly exemplary plot.
Figure 10 is one embodiment of the invention product application example figure.
Embodiment
The technological scheme that the present invention manufactures as a product, by the combination of respective organization structure, can make this programme specifically be implemented.One embodiment of the invention product Organizational Structure as shown in Figure 1.
In Fig. 1, product is comprised of left pressure frame, bridge, three modules of right pin wheel, wherein, left pressure frame module, by pulley, wheel pin, adjustable wheel seat, cotter pin, determine nut down, above determine six kinds of parts of nut and form, the bridge module is comprised of locknut, packing ring, arm, hinge pin seat, five kinds of parts of hinge pin, and right pin wheel module is comprised of cotter pin, pulley, three kinds of parts of wheel pin.
In embodiment, every kind of part has its concrete form, and under left pressure frame module, the form of each part as shown in Figure 2.
In Fig. 2, according to the tactic part of label successively: pulley part (1), wheel pin part (2), adjustable wheel seat part (3), cotter pin part (4), determine nut part (5) down, above determine nut part (6), the quantity of every kind of part respectively 1.
In left pressure frame module, what structure was more special is adjustable wheel seat part (3), and this design of part as shown in Figure 3.
In Fig. 3, adjustable wheel seat part (3) structure comprises an ear (7), wheel pin-and-hole (8), the seat end (9), seat bar rounding (10), adjusting screw rod (11), (12) six constituent elements of screw rod end face, wherein, the seat ear (7), the wheel pin-and-hole (8) quantity each 2, the quantity of other constituent element each 1; In fabricated part, wheel pin-and-hole (8) is positioned on the vertical center line of an ear (7), and the seat end (9), seat bar rounding (10), adjusting screw rod (11), (12) four constituent elements of screw rod end face are arranged in series from bottom to top successively.
In implementation process, adjustable wheel seat part (3) is used Alloy Constructional Steel or Fine Steel Casting iron manufacture; Manufacture formed fabricated part, the ratio between its maximum length value and its Extreme breadth value, at 1:1.1 between 1:1.2; Ratio between its maximum length value and its maximum height value, at 1:3.9 between 1:4.3.
Under the bridge module, each part form as shown in Figure 4.
In Fig. 4, according to the tactic part of label successively: locknut part (13), packing ring part (14), arm part (15), hinge pin seat part (16), hinge pin part (17), the quantity of every kind of part each 1.
In the bridge module, structure is more special arm part (15), hinge pin seat part (16) and hinge pin part (17).Arm part (15) structure as shown in Figure 5.
In Fig. 5, arm part (15) structure comprises pulley base (18), pulley base ear (19), wheel pin-and-hole (20), lever (21), hinge pin hole (22), adjustment seat (23), adjustment hole (24), (25) eight, lever inclined-plane constituent element, wherein, the quantity of pulley base ear (19) is 2, the quantity of other constituent element each 1; In fabricated part, pulley base (18), adjustment seat (23) lay respectively at the two ends of lever (21), lever inclined-plane (25) is positioned at the end face jointing place of lever (21) and adjustment seat (23), hinge pin hole (22) is positioned at 2/5ths places of lever (21) by adjustment seat (23) one ends, adjustment hole (24) is positioned on adjustment seat (23) horizontal center line, and adjustment hole (24) shaft axis and lever (21) horizontal center line intersect vertically.
In implementation process, arm part (15) is used the alloy structure steel making; Manufacture formed fabricated part, the ratio between its Extreme breadth value and its maximum length value, at 1:9.4 between 1:9.9; Ratio between its maximum height value and its maximum length value, at 1:4.2 between 1:4.5.
Hinge pin seat part (16) structure as shown in Figure 6.
In Fig. 6, hinge pin seat part (16) structure comprises seat cylinder (26), flap (27), flap through hole (28), rectangle deep gouge (29), (30) five, hinge pin hole constituent element, wherein, the quantity of flap through hole (28) is 4, the quantity of other constituent element each 1; In fabricated part, flap through hole (28) is positioned at flap (27) edge, and around flap (27) axle center annular array, seat cylinder (26) is connected with flap (27), hinge pin hole (30) is connected with rectangle deep gouge (29), axle center, hinge pin hole (30) overlaps with seat cylinder (26) shaft axis, flap (27) shaft axis, and rectangle deep gouge (29) is placed in flap (27) end face center.
In implementation process, hinge pin seat part (16) is used any material in Alloy Constructional Steel, Fine Steel Casting iron, copper-zinc alloy, four kinds of materials of engineering plastics to manufacture; Manufacture formed finished product hinge pin seat part, the ratio between its maximum length value and flap (27) external diameter value, at 1:1.3 between 1:1.5; Ratio between hinge pin hole (22) diameter value and seat cylinder (26) external diameter value, at 1:1.7 between 1:2.0; Ratio between hinge pin hole (22) diameter value and flap (27) external diameter value, at 1:3.1 between 1:3.5.
Hinge pin part (17) structure as shown in Figure 7.
In Fig. 7, hinge pin part (17) structure comprises pin end screw thread (31), tool withdrawal groove (32), hinge pin axle (33), seat pin axle (34), (35) five constituent elements of circle of contact key seat, the quantity of each constituent element each 1; In fabricated part, pin end screw thread (31), tool withdrawal groove (32), hinge pin axle (33), seat pin axle (34), (35) five constituent elements of circle of contact key seat then are arranged in series successively from front.
In implementation process, hinge pin part (17) is used any material in Alloy Constructional Steel, two kinds of materials of copper-zinc alloy to manufacture; Manufacture formed fabricated part, the ratio between its maximum diameter value and maximum length value, at 1:2.8 between 1:3.2; Ratio between pin end screw thread (31) length value and hinge pin axle (33) length value, at 1:1.5 between 1:1.8; Ratio between pin end screw thread (31) length value and seat pin axle (34) length value, at 1:3.2 between 1:3.6; Ratio between pin end screw thread (31) length value and whole part maximum length value, at 1:6.4 between 1:6.8.
In embodiment, under right pin wheel module, each part form as shown in Figure 8.
In Fig. 8, according to the tactic part of label successively: cotter pin part (36), pulley part (37), wheel pin part (38), the quantity of every kind of part each 1.
In embodiment, cotter pin part (36) under right pin wheel module, pulley part (37), wheel pin part (38), corresponding respectively with cotter pin part (4) under left pressure frame module, pulley part (1), wheel pin part (2), the structure of corresponding part, form, size, material are identical.
In implementation process, when the required various parts of product all manufactured complete after, can module be unit, all parts are combined to assembling, form molding product.The assembly relation of embodiment's product as shown in Figure 9.
In Fig. 9, the hinge pin seat part (16) of bridge module, under running through of hinge pin part (17) under same module is nested, be placed in a side of arm part (15), and corresponding with the packing ring part (14) that is placed in arm part (15) opposite side, locknut part (13).
In Fig. 9, pulley part (37) in right pin wheel module, by being nested running through of wheel pin part (38) under same module, be fixed between two pulley base ears (19) of the affiliated arm part (15) of bridge module, and pulley part (37) shaft axis overlaps with arm part (15) wheel pin-and-hole (20) shaft axis.
In Fig. 9, the pulley part (1) of left pressure frame module, by being nested running through of wheel pin part (2) under same module, be fixed on same module under adjustable wheel seat part (3) upper, and this pulley part (1) shaft axis overlaps with adjustable wheel seat part (3) shaft axis; In addition, adjustable wheel seat part (3) is in the mode of being nested, run through and be fixed in the middle adjustment hole of bridge module arm part (15), and determine under left pressure frame module under nut part (5), the upper mutual tightening of determining nut part (6), realize the vertical adjusting between self part (3) and arm part (15).
In embodiment, in the molding product of combining closely by left pressure frame module, bridge module, right pin wheel module, be mainly used in mechanical linkage and answer back to punch assembly; Its applicable cases as shown in figure 10.
In Figure 10, under the bridge module, hinge pin seat part (16) is fixed on outside frame seat (40) above, makes to be embedded in the hinge pin part (17) on hinge pin seat part (16), becomes the immovable point that product verts and moves; Pulley part (37) under right pin wheel module, correspondence is placed in the top that device (39) are answered back in outside, accepts the power point of outside interlock signal, the motion of verting as product; Pulley part (1) under left pressure frame module, correspondence is placed in the top of external process lathe punch assembly (41), the pressure spot that links signal, verts and exert pressure downwards as output of products; When device (39) is answered back to while upwards answering back under right pin wheel module pulley part (37) in outside, the active force produced passes to bridge module arm part (15) by right pin wheel module pulley part (37), pass pulley part (1) under left pressure frame module by bridge module arm part (15) swing of inclining again, this pulley part (1) is pressed down rapidly, impact outside lathe punch assembly (41), thereby realize that product interlock answers back to the function that pendulum hits.
In the actual development process, the shape of product parts, specification, orientation etc., all can be according to the needs of function and flexible, thereby form multiple embodiments, open product in different poses and with different expressions.
Claims (9)
- One kind answer back to the pendulum hit the formula clutch, by left pressure frame, bridge, three modules of right pin wheel, formed, it is characterized in that:(1) described left pressure frame module, by pulley, wheel pin, adjustable wheel seat, cotter pin, determine nut down, above determine six kinds of parts of nut and form, the quantity of every kind of part respectively 1;(2) described bridge module, be comprised of locknut, packing ring, arm, hinge pin seat, five kinds of parts of hinge pin, the quantity of every kind of part each 1;(3) the arm part in described bridge module, its structure comprises pulley base, pulley base ear, wheel pin-and-hole, lever, hinge pin hole, adjustment seat, adjustment hole, eight, lever inclined-plane constituent element, wherein, the quantity of pulley base ear is 2, the quantity of other constituent element each 1; In fabricated part, pulley base, adjustment seat lay respectively at the two ends of lever, the lever inclined-plane is positioned at the end face jointing place of lever and adjustment seat, the hinge pin hole is positioned at 2/5ths places of lever by adjustment seat one end, adjustment hole is positioned on the adjustment seat horizontal center line, and adjustment hole shaft axis and lever horizontal center line intersect vertically;(4) described right pin wheel module, be comprised of cotter pin, pulley, three kinds of parts of wheel pin, the quantity of every kind of part each 1;(5) in molding product, the hinge pin seat part of described bridge module, under running through of hinge pin part under same module is nested, be placed in a side of arm part, and corresponding with the packing ring part that is placed in arm part opposite side, locknut part;(6) in molding product, pulley part in described right pin wheel module, be nested running through of part by wheel pin under same module, be fixed between two pulley base ears of the affiliated arm part of bridge module, and this pulley part shaft axis overlaps with arm part wheel pin-and-hole shaft axis;(7) in molding product, the pulley part in described left pressure frame module, be nested by wheel pin under same module running through of part, be fixed under same module on adjustable wheel seat part, and this pulley part shaft axis and the mutual square crossing of adjustable wheel seat part shaft axis;(8) in molding product, adjustable wheel seat part in described left pressure frame module, run through and be fixed in bridge module arm part in adjustment hole in the mode of being nested, and under left pressure frame module, determine nut part, on determine under the mutual tightening of nut part, realize the vertical adjusting between self part and arm part.
- 2. the pendulum of answering back to according to claim 1 hits the formula clutch, it is characterized in that: the adjustable wheel seat part in described left pressure frame module, its structure comprises an ear, wheel pin-and-hole, the seat end, seat bar rounding, adjusting screw rod, six constituent elements of screw rod end face, wherein, the seat ear, the wheel pin-and-hole quantity each 2, the quantity of other constituent element each 1; In fabricated part, the wheel pin-and-hole is positioned on the vertical center line of an ear, and the seat end, seat bar rounding, adjusting screw rod, four constituent elements of screw rod end face are arranged in series from bottom to top successively.
- 3. the pendulum of answering back to according to claim 1 hits the formula clutch, it is characterized in that: the adjustable wheel seat part in described left pressure frame module, used Alloy Constructional Steel or Fine Steel Casting iron manufacture; Manufacture formed fabricated part, the ratio between its maximum length value and its Extreme breadth value, at 1:1.1 between 1:1.2; Ratio between its maximum length value and its maximum height value, at 1:3.9 between 1:4.3.
- 4. the pendulum of answering back to according to claim 1 hits the formula clutch, it is characterized in that: the arm part in described bridge module, used the alloy structure steel making; Manufacture formed fabricated part, the ratio between its Extreme breadth value and its maximum length value, at 1:9.4 between 1:9.9; Ratio between its maximum height value and its maximum length value, at 1:4.2 between 1:4.5.
- 5. the pendulum of answering back to according to claim 1 hits the formula clutch, it is characterized in that: the hinge pin seat part in described bridge module, its structure comprises seat cylinder, flap, flap through hole, rectangle deep gouge, five, hinge pin hole constituent element, wherein, the quantity of flap through hole is 4, the quantity of other constituent element each 1; In fabricated part, the flap through hole is positioned at the flap edge, and around flap axle center annular array, the seat cylinder is connected with flap, the hinge pin hole is connected with the rectangle deep gouge, and axle center, hinge pin hole overlaps with seat cylinder shaft axis, flap shaft axis, and the rectangle deep gouge is placed in flap end face center.
- 6. the pendulum of answering back to according to claim 1 hits the formula clutch, it is characterized in that: the hinge pin seat part in described bridge module, used any material in Alloy Constructional Steel, Fine Steel Casting iron, copper-zinc alloy, four kinds of materials of engineering plastics to manufacture; Manufacture formed fabricated part, the ratio between its maximum length value and flap external diameter value, at 1:1.3 between 1:1.5; Ratio between hinge pin bore dia value and seat cylinder external diameter value, at 1:1.7 between 1:2.0; Ratio between hinge pin bore dia value and flap external diameter value, at 1:3.1 between 1:3.5.
- 7. the pendulum of answering back to according to claim 1 hits the formula clutch, it is characterized in that: the hinge pin part in described bridge module, its structure comprises pin end screw thread, tool withdrawal groove, hinge pin axle, seat pin axle, five constituent elements of circle of contact key seat, the quantity of each constituent element each 1; In fabricated part, pin end screw thread, tool withdrawal groove, hinge pin axle, seat pin axle, five constituent elements of circle of contact key seat then are arranged in series successively from front.
- 8. the pendulum of answering back to according to claim 1 hits the formula clutch, it is characterized in that: the hinge pin part in described bridge module, used any material in Alloy Constructional Steel, two kinds of materials of copper-zinc alloy to manufacture; Manufacture formed fabricated part, the ratio between its maximum diameter value and maximum length value, at 1:2.8 between 1:3.2; Ratio between pin end reach value and hinge pin shaft length value, at 1:1.5 between 1:1.8; Ratio between pin end reach value and seat pin shaft length value, at 1:3.2 between 1:3.6; Ratio between pin end reach value and whole part maximum length value, at 1:6.4 between 1:6.8.
- 9. the pendulum of answering back to according to claim 9 hits the formula clutch, it is characterized in that: by implementing formed molding product, be mainly used in mechanical linkage and answer back to punch assembly; During use, under the bridge module, the hinge pin seat part is fixed on outside frame seat, makes to be embedded in the hinge pin part on the hinge pin seat part, becomes the immovable point that product verts and moves; Under right pin wheel module, pulley part correspondence is placed in the top that device is answered back in outside, accepts the power point of outside interlock signal, the motion of verting as product; Under left pressure frame module, pulley part correspondence is placed in the top of external process lathe punch assembly, the pressure spot that links signal, verts and exert pressure downwards as output of products; When device is answered back to while upwards answering back under right pin wheel module the pulley part in outside, the active force produced passes to bridge module arm part by right pin wheel module pulley part, pass pulley part under left pressure frame module by the swing of inclining of bridge module arm part again, this pulley part is pressed down rapidly, impact outside lathe punch assembly, thereby realize that product interlock answers back to the function that pendulum hits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310394365.2A CN103438168B (en) | 2013-09-03 | 2013-09-03 | Butt-spring-type linkage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310394365.2A CN103438168B (en) | 2013-09-03 | 2013-09-03 | Butt-spring-type linkage |
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| Publication Number | Publication Date |
|---|---|
| CN103438168A true CN103438168A (en) | 2013-12-11 |
| CN103438168B CN103438168B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310394365.2A Expired - Fee Related CN103438168B (en) | 2013-09-03 | 2013-09-03 | Butt-spring-type linkage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949541A (en) * | 2014-05-20 | 2014-07-30 | 郑小玲 | Swinging plate impact punching device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103826A (en) * | 1993-04-14 | 1995-06-21 | 森南产品公司 | Linkage controlled spring powered feed system |
| CN2649323Y (en) * | 2003-09-19 | 2004-10-20 | 陈禹志 | Hydraulic briquette coal shaping machine |
| CN101245842A (en) * | 2008-03-25 | 2008-08-20 | 无锡锡锻机床有限公司 | Main transmission system of full electric servo ball screw type numerical control rotating tower punch |
| CN201565510U (en) * | 2009-07-02 | 2010-09-01 | 谢云胜 | Stepless adjustable pressure machine without dead center and ram pressure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1750791A1 (en) * | 1990-04-24 | 1992-07-30 | Филиал Всесоюзного Научно-Исследовательского Института Электроаппаратуростроения | Die for bending brackets and calibrating bracket angle portions |
-
2013
- 2013-09-03 CN CN201310394365.2A patent/CN103438168B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103826A (en) * | 1993-04-14 | 1995-06-21 | 森南产品公司 | Linkage controlled spring powered feed system |
| CN2649323Y (en) * | 2003-09-19 | 2004-10-20 | 陈禹志 | Hydraulic briquette coal shaping machine |
| CN101245842A (en) * | 2008-03-25 | 2008-08-20 | 无锡锡锻机床有限公司 | Main transmission system of full electric servo ball screw type numerical control rotating tower punch |
| CN201565510U (en) * | 2009-07-02 | 2010-09-01 | 谢云胜 | Stepless adjustable pressure machine without dead center and ram pressure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949541A (en) * | 2014-05-20 | 2014-07-30 | 郑小玲 | Swinging plate impact punching device |
| CN103949541B (en) * | 2014-05-20 | 2016-01-13 | 郑小玲 | Pendulum plate clashes into punching machine |
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| CN103438168B (en) | 2016-01-13 |
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