CN201177095Y - Control mechanism for monolever controlling double valves pole movement - Google Patents
Control mechanism for monolever controlling double valves pole movement Download PDFInfo
- Publication number
- CN201177095Y CN201177095Y CNU2008200695091U CN200820069509U CN201177095Y CN 201177095 Y CN201177095 Y CN 201177095Y CN U2008200695091 U CNU2008200695091 U CN U2008200695091U CN 200820069509 U CN200820069509 U CN 200820069509U CN 201177095 Y CN201177095 Y CN 201177095Y
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- ball pivot
- joint
- handle
- pull bars
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Abstract
The utility model provides an operating mechanism for controlling the movement of a double valve handle by a single handle, comprising a U-shaped bracket (32) fixedly connected at the lower end of a handle lever, and a fixed support saddle (24) combined with the U-shaped bracket by a gimbal (2), wherein an outer lateral surface D of the U-shaped bracket is fixedly provided with a Z-shaped arm (3) which is in a plane perpendicular to the axes of the handle lever by a connecting piece, the front extending end R of the Z-shaped arm is combined with the inner ring of an oscillating bearing at the upper end E of a double spherical hinge tension rod (5) through a ball pin bolt, the inner ring of the oscillating bearing at the lower end F of the double spherical hinge tension rod (5) is combined with the end G of a rotating arm (7) arranged on the fixing support saddle point H by a rotating arm supporting pin roll through the ball pin bolt; the combing end Q of the Z-shaped arm and the U-shaped bracket is combined with the inner ring of the oscillating bearing at the upper end J of a double spherical hinge tension rod (6) through the ball pin bolt, and the inner ring of the oscillating bearing at the lower end K of the double spherical hinge tension rod (6) is combined with the end L of a rotating arm (8) arranged on the fixing support saddle point M by the rotating arm supporting pin roll through a ball pin bolt and a related connecting piece.
Description
Technical field
The utility model relates to a kind of operating mechanism that is used for the double stub shaft hydrovalve, the operating mechanism of particularly a kind of monolever control double stub shaft motion.
Background technique
The control mechanism of the double stub shaft hydrovalve of prior art is equipped with rolling bearing (generally adopting needle bearing) in operating handle 25 and 26 the body of rod mider hole as shown in Figure 1, after the stationary axle of bearing passes brearing bore, is fixedly mounted on the two ends of bearing H and M.The P hole of operating handle 25 and 26 lower ends is connected with the bearing pin of longitudinal tie 31 with 27 end knuckle joints respectively with the N hole; The hole that the other end of longitudinal tie also mills flat place with two valve rods 28 of knuckle joint and hydrovalve and 29 ends is worn bearing pin and is connected.More than each joint be rotary pair.
According to lever principle, when before respectively the handle end of two one control levers 25 and 26 being carried out, postponing the manipulation of drawing, their P hole, lower end and N hole will be rotated and pulling or pushing tow longitudinal tie 31 and 27 around bearing H and M, make valve rod 28 and 29 in the hole of valve body 30, do straight line motion, hydrovalve is manipulated directly, controlled.Can not connect longitudinal tie 31 and 27 yet, and connect two flexible axles, again two valve rods 28 and 29 of hydrovalve are handled, controlled by flexible axle at P, N point.
The hydrovalve of double stub shaft is hydraulic element the most frequently used in the engineering machinery, adopts the hydrovalve of double stub shaft to control moved arm lifting or decline and scraper bowl respectively as wheeled loader and receives bucket charging or tipping bucket discharging.Tire dozer adopts the hydrovalve of double stub shaft to control mouldboard lifting, decline and the left and right inclination of dozer equipment respectively.
Skilled driver will stir two one control levers thousands of times in eight hours operating time, therefore how to optimize operating mechanism, simplify the driver control program, reduce labor intensity and also just seem very necessary.
Summary of the invention
The purpose of this utility model provides the monolever that a kind of structure is more reasonable, steering program is simple and reliable and labor intensity of operating personnel is obviously reduced to control the operating mechanism that double stub shaft moves just at existing deficiency in the above-mentioned prior art.
The purpose of this utility model can realize by following technique measures:
The operating mechanism of monolever of the present utility model control double stub shaft motion comprises handle, is fixed in the shape of a saddle frame of handle stem lower end, the fixed bearing that combines with shape of a saddle frame by universal joint; Outer side surface at shape of a saddle frame fixedly mounts its plane, place and handle stem axis Z-shaped arm in vertical state by link, the preceding extending end R of Z-shaped arm combines by ball pin bolt and the associated fitting upper end E joint shaft bearing inner ring with two ball pivot pull bars, and the lower end F joint shaft bearing inner ring of two ball pivot pull bars is held with the G that is installed in the pivoted arm that fixed bearing H orders by the pivoted arm supporting shaft by ball pin bolt and associated fitting and combined; Binding end Q at Z-shaped arm and shape of a saddle frame, combine by ball pin bolt and the associated fitting upper end J joint shaft bearing inner ring with two ball pivot pull bars, the lower end K joint shaft bearing inner ring of two ball pivot pull bars is held with the L that is installed in the pivoted arm that fixed bearing M orders by the pivoted arm supporting shaft by ball pin bolt and associated fitting and is combined; The P of described two pivoted arms, N point is hinged with the bearing pin of the longitudinal tie end knuckle joint of two valve rods that are used to be connected hydrovalve accordingly respectively, and then realizes adopting the function of monolever control double stub shaft.
Front and back axle head A, the B of the universal-joint cross trunnion described in the utility model is installed in by needle bush in the mounting hole of fixed bearing, and left and right sides axle head C, the D of universal-joint cross trunnion is installed in by needle bush in the mounting hole of shape of a saddle frame two side of handle stem lower end.
Z-shaped arm rear end is fixed on the exterior edge face of shape of a saddle frame D portion with thread connecting mode, and adopts threaded connector such as ball pin bolt will be arranged on the screw place that is fastened on Z-shaped arm Q place on two ball pivot pull bars at this place at the Q place; After the assembling, the joint shaft bearing centre of sphere J point of this pair ball pivot pull bar upper end is on the elongation line of cross axle CD.
By threaded connectors such as ball pin bolts the two ball pivot pull bars of another root upper end is fastened on the screw place at Z-shaped arm R place at the preceding extending end R place of Z-shaped arm; After the assembling, the joint shaft bearing centre of sphere E point of this pair ball pivot pull bar upper end is on the elongation line of cross axle AB.
The two ball pivot pull bars of described in the utility model two all form up and down at double threaded screw by double threaded screw, spinning by levogyrate inner thread selflubricating spherical plain bearing rod end, internal thread selflubricating spherical plain bearing rod end and left-handed nut, the nut of threaded ends.The inner ring of joint shaft bearing everywhere of two two ball pivot pull bar upper and lower end is fastening with correlated parts with ball pin bolt and associated fitting, and centre of sphere E, the F of joint shaft bearing, J, K become sphere and hang down auxiliary structure.
The two ball pivot pull bar lower ends of described in the utility model two also can not connect pivoted arm, and it is hinged with the bearing pin of the longitudinal tie end knuckle joint of two valve rods that are used to be connected hydrovalve accordingly respectively directly to connect flexible axle.
The utility model compared with prior art has following advantage:
A) realize that with the manipulation monolever mechanism design is reasonable to the control of double stub shaft motion;
B) this operating mechanism both can have been distinguished the motion of controlling any rod member in the double stub shaft separately, also can utilize the characteristics of space bar mechanism, and oblique Joystick reaches the purpose of controlling the double stub shaft motion simultaneously;
C) because this operating mechanism adopts the mode of structure of universal joint and spherical plain bearing rod end, this just makes handle not only can realize multidirectional rotation, handle light function, and is not easy to produce work fatigue, can obviously alleviate driver control operation intensity;
D) this operating mechanism adopts the selflubricating spherical plain bearing rod end, and grease up when needing only first the assembling later on can long-term non-maintaining maintenance.
Description of drawings
Fig. 1 is the mechanism principle figure that the two one control levers system of prior art handled, controlled double stub shaft respectively.
Sequence number among the figure: 25 Joysticks, 26 another root Joysticks, 27 longitudinal ties, 28 valve rods, 29 another root valve rods, 30 valve bodies, 31 another root longitudinal ties.
Fig. 2 is a plan view of the present utility model.
Fig. 2-the 1st, the left view of Fig. 2.
Sequence number among the figure: 1 handle, 2 universal joints, 3Z shape arm, 4,4-1,4-2,4-3 be ball pin bolt, 5 pairs of ball pivot pull bars, 6 pairs of ball pivot pull bars, 7 pivoted arms, 8 pivoted arms, 22,22-1 is the pivoted arm supporting shaft, 24 fixed bearings, 32 shape of a saddle framves.
Fig. 3 is the leverage schematic diagram of the utility model structure.
Sequence number among the figure: 1 handle, 2 universal joints, 3Z shape arm, 4,4-1,4-2,4-3 are ball pin bolt, 5 pairs of ball pivot pull bars (EF), 6 pairs of ball pivot pull bars (JK), 7 pivoted arms (GHP), 8 pivoted arms (LMN), 24 fixed bearings, 27,31 are longitudinal tie, and 28,29 are valve rod, 30 valve bodies, 32 shape of a saddle framves.
Fig. 4 is the local amplification view of the I among Fig. 2-1.
Sequence number among the figure: 2 universal joints, 3Z shape arm, 4 ball pin bolts, 6 pairs of ball pivot pull bars (J end), 11 spring washers, 12 spacers, 19 bolts, 20 circlip for holes, 21 spring washers, 32 shape of a saddle framves.
Fig. 5 is the parts drawing of Z-shaped arm 3.
Fig. 5-the 1st, the B-B sectional view of Fig. 5, its shape such as English alphabet " Z " are so be called Z-shaped arm.
Fig. 6 is the structural representation of two ball pivot pull bars 5 and 6.
Fig. 6-the 1st, the left view of Fig. 6.
Sequence number among the figure: 9 levogyrate inner thread selflubricating spherical plain bearing rod ends, 13 internal thread selflubricating spherical plain bearing rod ends, 16 left-handed nuts, 17 double threaded screws, 18 nuts.
Fig. 7 be the K of Fig. 2 to view, also be the linkage structure schematic representation that lower end F and the pivoted arm 7 of two ball pivot pull bars 5 held at G; The lower end K of two ball pivot pull bars 6 is identical at linkage structure and Fig. 7 of L end with pivoted arm 8.
Sequence number among the figure: 4-2 ball pin bolt, 5 pairs of ball pivot pull bars, 7 pivoted arms, 10 nuts, 11 spring washers, 12 spacers.
Fig. 8 is the local amplification view of the II among Fig. 2-1, also is the H place linkage structure schematic representation of pivoted arm 7 and fixed bearing 24, and pivoted arm 8 is identical with M place linkage structure and Fig. 8 of fixed bearing 24.
Sequence number among the figure: 7 pivoted arms, 10 nuts, 11 spring washers, 22 pivoted arm supporting shafts, 23 plain washers, 24 fixed bearings.
Embodiment
The utility model is further described below with reference to embodiment's (accompanying drawing), but does not limit the utility model.
Shown in Fig. 2,2-1,3, the operating mechanism of monolever of the present utility model control double stub shaft motion comprises handle 1, is fixed in the shape of a saddle frame 32 of handle stem lower end, the fixed bearing 24 that combines with shape of a saddle frame by universal joint 2; More specifically say, front and back axle head A, the B of described universal joint 2 cross axles are installed in the mounting hole of fixed bearing 24 by needle bush, left and right sides axle head C, the D of universal joint 2 cross axles is installed in by needle bush in the mounting hole on the shape of a saddle frame two side of handle stem lower end, and locatees with circlip for hole.Outer side surface D at shape of a saddle frame 32 fixedly mounts its plane, place and handle stem axis Z-shaped arm 3 in vertical state by thread connecting mode, the preceding extending end R of Z-shaped arm combines by ball pin bolt 4-1 and the associated fitting upper end E joint shaft bearing inner ring with two ball pivot pull bars 5, and the lower end F joint shaft bearing inner ring of two ball pivot pull bars 5 is held with the G that is installed in the pivoted arm 7 that fixed bearing 24H orders by pivoted arm supporting shaft 22 by ball pin bolt 4-2 and associated fitting and combined; Binding end Q at Z-shaped arm and shape of a saddle frame, combine by ball pin bolt 4 and the associated fitting upper end J joint shaft bearing inner ring with two ball pivot pull bars 6, the lower end K joint shaft bearing inner ring of two ball pivot pull bars 6 is held with the L that is installed in the pivoted arm 8 that fixed bearing 24M orders by pivoted arm supporting shaft 22-1 by ball pin bolt 4-3 and associated fitting and is combined.
P, the N point of described pivoted arm 7,8 is hinged with the bearing pin of the longitudinal tie end knuckle joint of two valve rods that are used to be connected hydrovalve accordingly respectively.
Shown in Fig. 6,6-1, say that more specifically the two ball pivot pull bars 5 and 6 described in the utility model all are made up of at levogyrate inner thread selflubricating spherical plain bearing rod end 9, internal thread selflubricating spherical plain bearing rod end 13 and left-handed nut 16, the nut 18 of double threaded screw threaded ends about in the of 17 double threaded screw 17, spinning.Two ball pivot pull bars 5 and 6 E, F, J, K everywhere the joint shaft bearing inner ring be fastenedly connected with R, the Q of Z-shaped arm 3 and G, the L of pivoted arm 7 and 8 respectively with four ball pin bolt 4-1, threaded connectors such as 4-2,4,4-3; Make inside and outside circle centre of sphere E, F, J, the K of joint shaft bearing in the utility model space bar mechanism, become the sphere lower pair at 4.
In rotation process mutually, mechanical interference phenomenon takes place in the hexagon-head of outer ring and ball pin bolt for fear of the Internal and external cycle of internal thread selflubricating spherical plain bearing rod end 9 (or 13), and the hexagon head of ball pin bolt leans on the interior edge face of screw thread to be processed as sphere; Or add the length of long ball pin bolt, all adorn spacer 12 in the inner ring both sides of internal thread selflubricating spherical plain bearing rod end 9 (or 13) and also can reach the purpose that prevents mechanical interference.
Shown in Fig. 3,8, the place is fastenedly connected an end of pivoted arm supporting shaft 22 and fixed bearing 24 with thread connecting mode at the H of fixed bearing 24 point, and the other end of pivoted arm supporting shaft 22 is still used thread connecting mode, makes itself and pivoted arm 7 become rotary pair at the H point.
In like manner, the end of another part pivoted arm supporting shaft 22-1 is fixed on the M point place of fixed bearing 24, and the other end and pivoted arm 8 become rotary pair at the M point.
Because handle 1 (comprises the shape of a saddle frame 32 that its lower end and handle bar are affixed, below all be referred to as handle 1) in fact support by universal-joint cross trunnion, its right outer end (referring to Fig. 2-1,4 illustrated orientation) is connecting Z-shaped arm 3, so driving handle 1 is done forward and backward motion, or do left and right motion, also drive Z-shaped arm 3 around the AB of cross axle axis or CD rotational, also can do the compound motion that rotates simultaneously around two directions of cross axle.
Promoting forward with handle 1 is example (referring to Fig. 3), this moment, handle was around cross axle CD rotational, the J point is motionless, two ball pivot pull bars 5 are done straight line motion downwards, pivoted arm 7 is rotated backward around the H point, pushing tow is articulated in the P point of pivoted arm 7 and longitudinal tie 31 motions at flat place, (swing arm) valve rod 28 ends with rotary pair, makes (swing arm) valve rod 28 do the straight line motion of withdrawal inward in valve body 30 holes.This act of operation is that swing arm is descended.
During certain position in the decline process of swing arm, if when handle 1 is pushed forward to the end in this position, (swing arm) valve rod 28 is quick condition, and makes swing arm be parked in this position immediately to float.
If handle 1 is pulled back, handle is around cross axle CD rotational at this moment, and the J point does not still move, and two ball pivot pull bars 5 are upwards done straight line motion, and pivoted arm 7 is rotated forward around the H point.Longitudinal tie 31 pulling (swing arm) valve rods 28 are done the straight line motion that stretches out outward in valve body 30 holes.This act of operation is to make moved arm lifting.
This shows, moving being installed on the loader of operating mechanism of this cover monolever control double stub shaft, handle 1 pulls back, and makes moved arm lifting; Push away forward, make swing arm descend and still relatively meet people's Joystick direction and the action thinking logic between the swing arm.
With handle 1 outside upset to the right is example, and handle is around cross axle AB rotational at this moment, and the E point is motionless, and two ball pivot pull bars 6 are done straight line motion downwards, and pivoted arm 8 is rotated backward around the M point.Longitudinal tie 27 pushing tows (rotating bucket) valve rod 29 is done the straight line motion of withdrawal inward in valve body 30 holes.This act of operation is to make the discharging of scraper bowl tipping bucket.
If handle 1 is pulled left, handle is around cross axle AB rotational at this moment, and the E point does not still move, and two ball pivot pull bars 6 are upwards done straight line motion, and pivoted arm 8 is rotated forward around the M point.Longitudinal tie 27 pulling (rotating bucket) valve rods 29 are done the straight line motion that stretches out outward in valve body 30 holes.This act of operation is to make scraper bowl receive the bucket charging.
With the loader operation is example, and after the charging, the bucket limit is received on the limit rises swing arm, reaches the dump truck place then and goes discharging.This moment, to pulling, pivoted arm 7 and 8 all rotated forward around fulcrum H, the M of fixed bearing 24 with handle 1 oblique left back, realize to handle single pole and made scraper bowl can receive bucket, allowed moved arm lifting again.
When feeding preparatory work after the loader discharging once more, need the limit to fall swing arm, the limit from the upwards upset of discharging state, allows scraper bowl the bucket end set level gradually.This moment, to promotion, pivoted arm 7 and 8 all rotated backward around fulcrum H, the M of fixed bearing 24 with handle 1 oblique right front, realized single pole control double stub shaft, swing arm is descended from eminence, scraper bowl can be overturn receive bucket, when swing arm dropped to ground, just in time scraper bowl was received to struggle against to and is held down position.
When the double stub shaft hydrovalve of loader was installed in forebay, two ball pivot pull bars 5 were not connected pivoted arm with 6 lower ends, and connected flexible axle, can realize handling two flexible axles of monolever control yet, removed to control the hydrovalve of double stub shaft then again with flexible axle.
But for the inclination dozer equipment of tire dozer, it has mouldboard lift cylinder and inclination oil cylinder, and also available double stub shaft hydrovalve comes this equipment is controlled.This moment, as long as pivoted arm 8 and longitudinal tie 27 were hinged with (inclination) valve rod 29 of hydrovalve, can realize the soil-shifting equipment is carried out mono-lever control hinged with (lifting) valve rod 28 of hydrovalve pivoted arm 7 of the present utility model and longitudinal tie 27.
Claims (5)
1, the operating mechanism of a kind of monolever control double stub shaft motion, it is characterized in that: this mechanism comprises the shape of a saddle frame (32) that is fixed in handle (1) handle bar lower end, the fixed bearing (24) that combines with shape of a saddle frame by universal joint (2); Outer side surface D at shape of a saddle frame fixedly mounts its plane, place and handle stem axis Z-shaped arm (3) in vertical state by link, the preceding extending end R of Z-shaped arm combines by ball pin bolt (4-1) and the associated fitting upper end E joint shaft bearing inner ring with two ball pivot pull bars (5), and the lower end F joint shaft bearing inner ring of two ball pivot pull bars (5) is held with the G that is installed in the pivoted arm (7) that fixed bearing (24) H orders by pivoted arm supporting shaft (22) by ball pin bolt (4-2) and associated fitting and combined; Binding end Q at Z-shaped arm and shape of a saddle frame, combine by ball pin bolt (4) and the associated fitting upper end J joint shaft bearing inner ring with two ball pivot pull bars (6), the lower end K joint shaft bearing inner ring of two ball pivot pull bars (6) is held with the L that is installed in the pivoted arm (8) that fixed bearing (24) M orders by pivoted arm supporting shaft (22-1) by ball pin bolt (4-3) and associated fitting and is combined; P, the N point of described pivoted arm (7), (8) is hinged with the bearing pin of the longitudinal tie end knuckle joint of two valve rods that are used to be connected hydrovalve accordingly respectively.
2, the operating mechanism of monolever control double stub shaft according to claim 1 motion, it is characterized in that: front and back axle head A, the B of universal joint (2) cross axle is installed in by needle bush in the mounting hole of fixed bearing (24), and left and right sides axle head C, the D of universal joint (2) cross axle is installed in by needle bush on shape of a saddle frame (32) two side of handle (1) handle bar lower end in the mounting hole.
3, the operating mechanism of monolever control double stub shaft according to claim 1 motion, it is characterized in that: the joint shaft bearing bulb center J point of described pair of ball pivot pull bar (6) upper end is positioned on the elongation line of universal joint (2) cross axle CD; The joint shaft bearing bulb center E point of two ball pivot pull bars (5) upper end is positioned on the elongation line of universal joint (2) cross axle AB.
4, the operating mechanism of a kind of monolever control double stub shaft according to claim 1 motion, it is characterized in that: all levogyrate inner thread selflubricating spherical plain bearing rod end (9), internal thread selflubricating spherical plain bearing rod end (13) and left-handed nut (16), the nut (18) of threaded ends are formed up and down at double threaded screw (17) by double threaded screw (17), spinning for two ball pivot pull bars (5) and (6).
5, the operating mechanism of a kind of monolever control double stub shaft according to claim 1 motion is characterized in that: two ball pivot pull bars (5) and (6) lower end are directly hinged with the bearing pin of the longitudinal tie end knuckle joint of two valve rods that are used to be connected hydrovalve accordingly respectively by being connected flexible axle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNU2008200695091U CN201177095Y (en) | 2008-03-07 | 2008-03-07 | Control mechanism for monolever controlling double valves pole movement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CNU2008200695091U CN201177095Y (en) | 2008-03-07 | 2008-03-07 | Control mechanism for monolever controlling double valves pole movement |
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CNU2008200695091U Expired - Fee Related CN201177095Y (en) | 2008-03-07 | 2008-03-07 | Control mechanism for monolever controlling double valves pole movement |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102418356A (en) * | 2010-06-22 | 2012-04-18 | 天津建筑机械厂 | Single-handle working device operating mechanism of dozer |
CN103375639A (en) * | 2012-04-28 | 2013-10-30 | 上海良工阀门厂有限公司 | Operating mechanism for simultaneously opening and closing two ball valves |
CN104265987A (en) * | 2014-09-19 | 2015-01-07 | 洛阳市黄河软轴控制器股份有限公司 | Single handle controlled double-flexible-shaft operating mechanism |
CN105967107A (en) * | 2016-07-18 | 2016-09-28 | 江苏上骐农业装备有限公司 | Multiway valve operating mechanism and forklift |
-
2008
- 2008-03-07 CN CNU2008200695091U patent/CN201177095Y/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102418356A (en) * | 2010-06-22 | 2012-04-18 | 天津建筑机械厂 | Single-handle working device operating mechanism of dozer |
CN103375639A (en) * | 2012-04-28 | 2013-10-30 | 上海良工阀门厂有限公司 | Operating mechanism for simultaneously opening and closing two ball valves |
CN103375639B (en) * | 2012-04-28 | 2016-02-03 | 上海良工阀门厂有限公司 | The operating device that two billiard ball valves open and close simultaneously |
CN104265987A (en) * | 2014-09-19 | 2015-01-07 | 洛阳市黄河软轴控制器股份有限公司 | Single handle controlled double-flexible-shaft operating mechanism |
CN105967107A (en) * | 2016-07-18 | 2016-09-28 | 江苏上骐农业装备有限公司 | Multiway valve operating mechanism and forklift |
CN105967107B (en) * | 2016-07-18 | 2018-08-24 | 江苏上骐重工科技有限公司 | A kind of multi-way valve operating mechanism and fork truck |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090107 Termination date: 20140307 |