CN205616110U - Straining device of belt pulley - Google Patents
Straining device of belt pulley Download PDFInfo
- Publication number
- CN205616110U CN205616110U CN201620406158.3U CN201620406158U CN205616110U CN 205616110 U CN205616110 U CN 205616110U CN 201620406158 U CN201620406158 U CN 201620406158U CN 205616110 U CN205616110 U CN 205616110U
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- Prior art keywords
- axle bed
- chute
- belt
- belt pulley
- strainer
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Abstract
The utility model discloses a straining device of belt pulley, which comprises a frame, be provided with a material delivery roller, the 2nd material delivery roller in the frame and wind the belt on a material delivery roller and the 2nd material delivery roller in proper order, be provided with the tensioning roller in the frame and rotate the axle bed of being connected with the pivot of tensioning roller, be provided with the spout that slides and be connected with the axle bed in the frame, be provided with on the spout both ends respectively with the elastic component of axle bed, spout inside wall butt, elastic component passes through elastic deformation and promotes the axle bed at the spout internal slipping to drive take -up pulley tensioning belt, elastic component promotes the elastic force that the axle bed moved to moving to right for one axle bed in the spout, thus promote the tensioning roller all the time with the belt butt, play the effect of automatic tensioning, guarantee belt normal clear transmission to the belt.
Description
Technical field
This utility model relates to a kind of band tensioner, particularly to the strainer of a kind of belt pulley.
Background technology
Grain transporter is a kind of mobile steering-type belt conveyor, it is mainly used in the warehouse entry operation in bulk of horizontal warehouse, grain transporter is mainly made up of transport portion, knuckle section and running gear, it is primarily adapted for use in the warehouse entry operation of large and medium-sized grain depot, and it is current, the belt pulley of existing conveyer is typically all the principle using screw mandrel apical axis bearing, such structure easily causes bearing block and damages, additionally, when bearing working, the foreign material such as the rope made of hemp in grain or weeds can be wound in rotating shaft, if being wound around too many, need to stop work, carry out labor cleaning.
In order to solve the problems referred to above, in the Chinese patent document that number of patent application is " 201220517439.8 ", describe the tightening belt wheel mechanism of a kind of conveyer, including support, bearing, rotating shaft and belt pulley, belt pulley is connected with rotating shaft by bearing, bearing is arranged in belt pulley, bearing is fastened in the mounting groove of support, rotating shaft is provided with bolt hole, the outer end of mounting groove is provided with installing hole, rotating shaft is fixed by bolt through the installing hole of mounting groove and the bolt hole of rotating shaft, the position of belt pulley can be controlled by the length of regulation bolt, and then adjust the tensioning degree of conveyer belt, owing to bearing is arranged in belt pulley, when belt pulley rotary work, rotating shaft does not rotates, therefore the foreign material such as the rope made of hemp in grain or weeds can be avoided to be wound in rotating shaft.
Belt is after a long time use, it is thinning that the abrasion being subject to is easily caused belt, so that belt becomes lax, need staff's adjusting screw rod timely so that belt slack, accordingly, it would be desirable to the elasticity of staff's routine observation belt, and manually remove adjusting screw rod, if staff carries out tensioning work the most in time, the normal transmission function that can cause belt is impaired, even can not be normally carried out transportation.
Utility model content
The purpose of this utility model is to provide a kind of tensioning remaining belt, ensures that belt is normally carried out the strainer of the belt pulley of transmission.
Above-mentioned technical purpose of the present utility model has the technical scheme that the strainer of a kind of belt pulley, including frame, the first conveying roller it is provided with in described frame, second conveying roller and be wound on the belt on the first conveying roller and the second conveying roller successively, idler roller and the axle bed being connected with the axis of rotation of idler roller it is provided with in described frame, the chute being connected with axle bed sliding it is provided with in described frame, be provided with on described chute two ends respectively with axle bed, the elastic parts that chute medial wall abuts, described elastic parts promotes axle bed sliding in chute by elastic deformation, thus drive regulating wheel tightening belt.
Further, described elastic parts includes horizontally disposed expansion link and the spring being set on expansion link, the two ends of described expansion link are fixed with chute medial wall, axle bed sidewall respectively and are connected, and the two ends of described spring abut with chute medial wall, axle bed sidewall respectively.
Further, described elastic parts includes guide post and sheathed spring on the guide bar, the pilot hole of one end horizontal extension wherein for guide post it is provided with on the medial wall of described chute, the other end of described guide post is fixing with axle bed to be connected, and the two ends of described spring abut with chute medial wall, axle bed sidewall respectively.
Further, described frame is provided with the guidance set that axle bed sliding in chute is guided.
Further, described guidance set includes the locating slot being arranged on chute inwall and extending along track length direction, is arranged on axle bed and the keeper of sliding in locating slot.
Further, described keeper is the roller being connected with axle bed lower rotation.
Further, described chute inwall being provided with the limit induction part limiting axle bed sliding stroke, described frame is provided with controller, the warning lamp electrically connected with limit induction part, described limit induction part controls warning lamp by controller and works.
Further, described chute is by the left plate being arranged in frame, right plate, epipleural and lower side panel around forming, and described epipleural is detachably fixed with left plate, right plate and is connected.
Further, described chute is by the left plate being arranged in frame, right plate, epipleural and lower side panel around forming, and one end of described epipleural is rotationally connected with the upper end of left plate, and the other end of described epipleural is detachably fixed with the upper end of right plate and is connected.
Further, the other end of described epipleural is provided with resilient clamp member, and the upper end of described right plate is provided with and the buckling groove of resilient clamp member shackle member snap-fit engagement.
In sum, this utility model has the advantages that 1, elastic parts promotes, to axle bed one, the elastic force that axle bed moves right in chute by elastic deformation, thus promote idler roller to abut with belt all the time, belt is played the effect of auto-tensioning, ensures that belt is normally carried out transmission；2, contact induction sheet receives activation signal, and deliver it to controller, control warning lamp by controller to work, warning lamp starts flicker, notify that belt is replaced by staff, so that the belt that serious wear cannot be continuing with can be replaced by staff timely, thus keep conveyer during work, belt remains tensioning state, and best conveying effect is played in the conveying to grain；3, side plate is rotated up around jointed shaft, and resilient clamp member and buckling groove depart from card machine and coordinate, so that the upper end of chute is opened, is in open state, is conveniently placed on lower side panel by axle bed, and the installment work making axle bed is more laborsaving, convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of the strainer of a kind of belt pulley in embodiment 1；
Fig. 2 is the generalized section of the strainer of a kind of belt pulley in embodiment 1, for embodying the sliding of keeper；
Fig. 3 is the structural representation of the strainer of a kind of belt pulley in embodiment 2, is used for embodying guide post；
Fig. 4 is the exploded perspective view of the strainer of a kind of belt pulley in embodiment 3, for embodying the annexation of epipleural, left plate and right plate.
In figure, 1, frame；2, the first conveying roller；3, belt；4, the second conveying roller；5, idler roller；6, left plate；7, right plate；8, epipleural；9, lower side panel；10, axle bed；11, locating slot；12, expansion link；13, spring；14, resilient clamp member；15, warning lamp；16, controller；17, keeper；18, limit induction part；19, guide post；20, right extension board；21, bolt；22, chute.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Embodiment 1:
nullA kind of strainer of belt pulley，As shown in Figure 1，Including frame 1，The first conveying roller 2 it is provided with in frame 1、It is positioned at the second conveying roller 4 above the first conveying roller 2 and is wound on the belt 3 on the first conveying roller 2 and the second conveying roller 4 successively，Idler roller 5 it is provided with and axle bed 10 that the axis of rotation with idler roller 5 is connected in frame 1，Idler roller 5 is between the first conveying roller 2 and the second conveying roller 4，And contact with the surface of belt 3，The axis of rotation at idler roller 5 two ends is set on axle bed 10，Axle bed 10 is arranged in frame 1，Belt 3 is in transmitting procedure，Idler roller 5 is driven to rotate，Rotating shaft rotation in axle bed 10，The chute 22 being connected with axle bed 10 sliding it is provided with in frame 1，In the present embodiment，Chute 22 is by the left plate 6 being arranged in frame 1、Right plate 7、Epipleural 8 and lower side panel 9 are around forming，Four blocks of side plates surround the cuboid of hollow，The part of hollow is chute 22，Axle bed 10 is placed in chute 22，From left plate 6 side plate 7 sliding to the right，During sliding，Axle bed 10 drives idler roller 5 to move right，Thus drive belt 3 to bend to the right by idler roller 5，Belt 3 between first conveying roller 2 and the second conveying roller 4 is carried out tensioning；Being provided with the elastic parts that two ends abut with axle bed 10, chute 22 left side wall respectively on chute 22, elastic parts promotes axle bed 10 sliding in chute 22 by elastic deformation, thus drives regulating wheel tightening belt 3；
nullAs depicted in figs. 1 and 2，Elastic parts includes horizontally disposed expansion link 12 and the spring 13 being set on expansion link 12，The two ends of expansion link 12 respectively with left plate 6、The left side wall of axle bed 10 is fixing to be connected，Expansion link 12 can stretch，Thus realize the change of the distance between axle bed 10 and left plate 6，The spring 13 being enclosed within expansion link 12，Its two ends respectively with left plate 6、The left side wall of axle bed 10 abuts，Spring 13 and expansion link 12 are all in the state shunk，Now，Spring 13 is to 10 1 elastic forces to the right of axle bed，Prop up axle bed 10，Make the regulating wheel on axle bed 10 that belt 3 is carried out tensioning，Wear and tear after using for a long time along with belt 3 thinning，After becoming to relax，The spring 13 being under contraction state produces elastic deformation，Start elongation，In elongation process，Spring 13 promotes the elastic force that axle bed 10 moves right in chute 22 to all the time axle bed 10 1，Thus promote idler roller 5 to abut with belt 3 all the time，Belt 3 is played the effect of auto-tensioning，Ensure that belt 3 is normally carried out transmission.
nullAs shown in Figure 2，It is provided with in frame 1 axle bed 10 guidance set that sliding guides in chute 22，In the present embodiment，The locating slot 11 that guidance set includes being arranged on chute 22 inwall and extends along the length direction of chute 22、It is arranged on axle bed 10 and the keeper 17 of sliding in locating slot 11，Keeper 17 is arranged on the bottom of axle bed 10，And protrude from the bottom of axle bed 10，Locating slot 11 is arranged on lower side panel 9 and is depressed in the surface of lower side panel 9，Keeper 17 on axle bed 10 is in locating slot 11，Can be along sliding on the length direction of locating slot 11，I.e. from the sliding to the right of the left side of lower side panel 9，By keeper 17 sliding in locating slot 11，The axle bed 10 sliding on chute 22 is played the effect of positioning and guiding，Thus avoid axle bed 10 that the situation of skew occurs during sliding on chute 22；In the present embodiment, keeper 17 is roller, roller is connected with the lower rotation of axle bed 10, rolled in locating slot 11 by roller, thus realize the axle bed 10 sliding in chute 22, the setting of roller, decreases bottom axle bed 10 frictional force that sliding produces in chute 22, make axle bed 10 in chute 22 sliding more smoothly, laborsaving.
nullAs shown in Figure 2，The limit induction part 18 limiting axle bed 10 sliding stroke it is provided with on chute 22 inwall，The controller 16 electrically connected with limit induction part 18 it is provided with in frame 1、Warning lamp 15，In the present embodiment，Limit induction part 18 is to be arranged on right plate 7 and the contact induction sheet relative with axle bed 10，Until axle bed 10 slide onto in chute 22 spring 13 reach maximal tensility time，The right side wall of axle bed 10 contacts with contact induction sheet，Now，The impaired degree ratio of belt 3 is more serious，The tension effects of this strainer reaches capacity，By being slid onto the axle bed 10 of chute 22 right-hand member and contacting of contact induction sheet，Contact induction sheet receives activation signal，And deliver it to controller 16，Control warning lamp 15 by controller 16 to work，Warning lamp 15 starts flicker，Notify that belt 3 is replaced by staff，So that the belt 3 that serious wear cannot be continuing with can be replaced by staff timely，Thus keep conveyer during work，Belt 3 remains tensioning state，Best conveying effect is played in conveying to grain.
nullAs depicted in figs. 1 and 2，The left end of epipleural 8 is rotationally connected with the upper end of left plate 6，The right-hand member of epipleural 8 is detachably fixed with the upper end of right plate 7 and is connected，In the present embodiment，The mode being rotationally connected is hinged，Left end at epipleural 8 is provided with jointed shaft，Together with epipleural 8 and left plate 6 are hingedly fixed in by jointed shaft，And epipleural 8 can rotate around jointed shaft，The mode being detachably fixed connection is flexible clamping，Right-hand member at epipleural 8 is provided with resilient clamp member 14，Resilient clamp member 14 is made for elastomeric material，It is provided with and the buckling groove of resilient clamp member 14 snap-fit engagement in the upper end of right plate 7，Epipleural 8 around jointed shaft turn to horizontal level time，Resilient clamp member 14 enters in buckling groove，Both connect and fix，Thus realize connecting and fixing of epipleural 8 and right plate 7，Epipleural 8 is rotated up around jointed shaft，Resilient clamp member 14 and buckling groove depart from card machine and coordinate，So that the upper end of chute 22 is opened，It is in open state，Conveniently axle bed 10 is placed on lower side panel 9，The installment work making axle bed 10 is more laborsaving、Convenient，After installation，Epipleural 8 rotates down，Resilient clamp member 14 and buckling groove snap-fit engagement，Thus realize the fixing of epipleural 8 and right plate 7，Axle bed 10 is made to be installed in chute 22.
Embodiment 2:
nullA kind of strainer of belt pulley，As shown in Figure 3，Difference from Example 1 is，Elastic parts includes guide post 19 and the spring 13 being set on guide post 19，Be provided with on left plate 6 for guide post 19 left end horizontal through pilot hole，Guide post 19 moves horizontally on pilot hole，It is achieved thereby that the horizontal extension in chute 22，The right-hand member of guide post 19 is fixing with axle bed 10 to be connected，Guide post 19 is during flexible，Drive axle bed 10 sliding in chute 22，The two ends of spring 13 respectively with chute 22 medial wall、Axle bed 10 sidewall abuts，After belt 3 becomes slack，Spring 13 produces elastic deformation，Start elongation，Spring 13 promotes axle bed 10 elastic power of sliding to the right in chute 22 to all the time axle bed 10 1，Thus promote idler roller 5 to abut with belt 3 all the time，The belt 3 become slack is played the effect of auto-tensioning，Guide post 19 sliding in pilot hole，The axle bed 10 sliding in chute 22 is played the effect of guiding by guide post 19，Axle bed 10 is avoided to produce skew in slipping.
Embodiment 3:
nullA kind of strainer of belt pulley，It is with the difference of embodiment 1，As shown in Figure 4，Epipleural 8 and left plate 6、Right plate 7 is detachably fixed connection，In the present embodiment，The mode being detachably fixed connection is threaded，Upper end level at epipleural 8 and right plate 7 runs through screwed hole，The two ends of epipleural 8 are extended with left extension board and right extension board 20 straight up，Left extension board is fitted towards the surface of left plate 6 with left plate 6，Right extension board 20 is fitted towards the surface of right plate 7 with right plate 7，Left extension board is provided through the through hole relative with screwed hole in the horizontal direction with right extension board 20，Bolt 21 through after through hole with screwed hole threaded engagement，The bolt head of bolt 21 abuts with the sidewall of extension board，Threaded engagement by bolt 21 with screwed hole，Achieve epipleural 8 respectively with left plate 6、Right plate 7 be detachably fixed connection，The mode of screw thread link makes epipleural 8 be firmly fixed on left plate 6 and right plate 7，Epipleural 8 is not likely to produce skew.
Claims (10)
1. the strainer of a belt pulley, including frame (1), the first conveying roller (2) it is provided with in described frame (1), second conveying roller (4) and be wound on the belt (3) on the first conveying roller (2) and the second conveying roller (4) successively, it is characterized in that: be provided with idler roller (5) in described frame (1) and axle bed (10) that the axis of rotation with idler roller (5) is connected, the chute (22) being connected with axle bed (10) sliding it is provided with in described frame (1), be provided with on described chute (22) two ends respectively with axle bed (10), the elastic parts that chute (22) medial wall abuts, described elastic parts promotes axle bed (10) sliding in chute (22) by elastic deformation, thus drive regulating wheel tightening belt (3).
The strainer of a kind of belt pulley the most according to claim 1, it is characterized in that: described elastic parts includes horizontally disposed expansion link (12) and the spring (13) being set on expansion link (12), the two ends of described expansion link (12) are fixed with chute (22) medial wall, axle bed (10) sidewall respectively and are connected, and the two ends of described spring (13) abut with chute (22) medial wall, axle bed (10) sidewall respectively.
The strainer of a kind of belt pulley the most according to claim 1, it is characterized in that: described elastic parts includes guide post (19) and the spring (13) being set on guide post (19), the pilot hole of one end horizontal extension wherein supplying guide post (19) it is provided with on the medial wall of described chute (22), the other end of described guide post (19) is fixing with axle bed (10) to be connected, and the two ends of described spring (13) abut with chute (22) medial wall, axle bed (10) sidewall respectively.
The strainer of a kind of belt pulley the most according to claim 1, it is characterised in that: it is provided with in described frame (1) axle bed (10) guidance set that sliding guides in chute (22).
The strainer of a kind of belt pulley the most according to claim 4, it is characterised in that: described guidance set include being arranged on chute (22) inwall and extend along chute (22) length direction locating slot (11), be arranged on axle bed (10) upper and in locating slot (11) keeper (17) of sliding.
The strainer of a kind of belt pulley the most according to claim 5, it is characterised in that: described keeper (17) is the roller being connected with axle bed (10) lower rotation.
The strainer of a kind of belt pulley the most according to claim 1, it is characterized in that: on described chute (22) inwall, be provided with the limit induction part (18) limiting axle bed (10) sliding stroke, being provided with controller (16), the warning lamp (15) electrically connected with limit induction part (18) in described frame (1), described limit induction part (18) controls warning lamp (15) by controller (16) and works.
The strainer of a kind of belt pulley the most according to claim 1, it is characterized in that: described chute (22) is by the left plate (6) being arranged in frame (1), right plate (7), epipleural (8) and lower side panel (9) around forming, and described epipleural (8) is detachably fixed is connected with left plate (6), right plate (7).
The strainer of a kind of belt pulley the most according to claim 1, it is characterized in that: described chute (22) by the left plate (6) being arranged in frame (1), right plate (7), epipleural (8) and lower side panel (9) around forming, one end of described epipleural (8) is rotationally connected with the upper end of left plate (6), and the other end of described epipleural (8) is detachably fixed with the upper end of right plate (7) and is connected.
The strainer of a kind of belt pulley the most according to claim 9, it is characterized in that: the other end of described epipleural (8) is provided with resilient clamp member (14), the upper end of described right plate (7) is provided with the buckling groove with resilient clamp member (14) shackle member snap-fit engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620406158.3U CN205616110U (en) | 2016-05-06 | 2016-05-06 | Straining device of belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620406158.3U CN205616110U (en) | 2016-05-06 | 2016-05-06 | Straining device of belt pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205616110U true CN205616110U (en) | 2016-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620406158.3U Expired - Fee Related CN205616110U (en) | 2016-05-06 | 2016-05-06 | Straining device of belt pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205616110U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410902A (en) * | 2016-10-29 | 2017-02-15 | 袁新海 | Intelligent electric automobile charging pile having parking lock function |
| CN106742273A (en) * | 2016-12-16 | 2017-05-31 | 山东松远自动化设备有限公司 | One kind reason stockline conveying belt tensioning mechanism |
| CN107826629A (en) * | 2017-11-01 | 2018-03-23 | 经纬纺织机械股份有限公司 | A kind of steel band conveyor structure automatic takeup |
| CN108100577A (en) * | 2018-02-01 | 2018-06-01 | 前海瑞智捷自动化科技（深圳）有限公司 | A kind of conveyer belt automatic takeup and transmission equipment |
| CN109018917A (en) * | 2018-08-28 | 2018-12-18 | 安徽盛运重工机械有限责任公司 | Conveying belt breakage emergency stop device and use method thereof |
| CN111099276A (en) * | 2019-12-03 | 2020-05-05 | 北京可锐特科技有限公司 | Speed-multiplying chain conveying line tensioning mechanism and speed-multiplying chain conveying line |
| CN111254232A (en) * | 2020-03-13 | 2020-06-09 | 青岛龙泰科服饰有限公司 | Leather buffing dust collecting equipment |
| CN112499129A (en) * | 2020-11-29 | 2021-03-16 | 湖南省品源机械制造有限公司 | Double-conveying-seat shuttle feeding device |
| CN114084727A (en) * | 2021-12-07 | 2022-02-25 | 天长市君华彩印有限公司 | Continuous production line for color printing cartons |
| CN116002293A (en) * | 2023-03-24 | 2023-04-25 | 陕西神渭煤炭管道运输有限责任公司 | Transmission mechanism for coal slurry conveyor |
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2016
- 2016-05-06 CN CN201620406158.3U patent/CN205616110U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410902B (en) * | 2016-10-29 | 2019-03-15 | 袁新海 | Have both the intelligent electric automobile charging pile of parking stall lock function |
| CN106410902A (en) * | 2016-10-29 | 2017-02-15 | 袁新海 | Intelligent electric automobile charging pile having parking lock function |
| CN106742273A (en) * | 2016-12-16 | 2017-05-31 | 山东松远自动化设备有限公司 | One kind reason stockline conveying belt tensioning mechanism |
| CN107826629A (en) * | 2017-11-01 | 2018-03-23 | 经纬纺织机械股份有限公司 | A kind of steel band conveyor structure automatic takeup |
| CN107826629B (en) * | 2017-11-01 | 2024-03-01 | 经纬智能纺织机械有限公司 | Automatic tensioning device of steel belt conveying mechanism |
| CN108100577B (en) * | 2018-02-01 | 2023-09-19 | 前海瑞智捷自动化科技（深圳）有限公司 | Automatic tensioning device of conveyor belt and conveying equipment |
| CN108100577A (en) * | 2018-02-01 | 2018-06-01 | 前海瑞智捷自动化科技（深圳）有限公司 | A kind of conveyer belt automatic takeup and transmission equipment |
| CN109018917A (en) * | 2018-08-28 | 2018-12-18 | 安徽盛运重工机械有限责任公司 | Conveying belt breakage emergency stop device and use method thereof |
| CN111099276A (en) * | 2019-12-03 | 2020-05-05 | 北京可锐特科技有限公司 | Speed-multiplying chain conveying line tensioning mechanism and speed-multiplying chain conveying line |
| CN111254232B (en) * | 2020-03-13 | 2020-12-18 | 浙江丰谷新材料有限公司 | Leather buffing dust collecting equipment |
| CN111254232A (en) * | 2020-03-13 | 2020-06-09 | 青岛龙泰科服饰有限公司 | Leather buffing dust collecting equipment |
| CN112499129A (en) * | 2020-11-29 | 2021-03-16 | 湖南省品源机械制造有限公司 | Double-conveying-seat shuttle feeding device |
| CN114084727A (en) * | 2021-12-07 | 2022-02-25 | 天长市君华彩印有限公司 | Continuous production line for color printing cartons |
| CN116002293A (en) * | 2023-03-24 | 2023-04-25 | 陕西神渭煤炭管道运输有限责任公司 | Transmission mechanism for coal slurry conveyor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20161005 Termination date: 20190506 |
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| CF01 | Termination of patent right due to non-payment of annual fee |