CN212349823U - Dust collector for cement manufacture - Google Patents
Dust collector for cement manufacture Download PDFInfo
- Publication number
- CN212349823U CN212349823U CN202020422882.1U CN202020422882U CN212349823U CN 212349823 U CN212349823 U CN 212349823U CN 202020422882 U CN202020422882 U CN 202020422882U CN 212349823 U CN212349823 U CN 212349823U
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- Prior art keywords
- fixedly connected
- box body
- rod
- inner cavity
- collecting frame
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000428 dust Substances 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000004568 cement Substances 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000010521 absorption reaction Methods 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 230000002146 bilateral effect Effects 0.000 claims description 8
- 244000309464 bull Species 0.000 claims description 4
- 239000000463 material Substances 0.000 description 9
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a dust removing device for cement production, which comprises a box body, wherein the inner cavity of the box body is fixedly connected with two water tanks, the water tank is arranged symmetrically left and right with the center of the tank body as the center line, one end of the water tank is inserted with the water pump, the other end of the water tank is inserted with the water inlet pipe, one end of the water inlet pipe passes through the tank body, and extends to the outer side of the box body, an absorption device is arranged in the inner cavity of the box body, a plurality of rollers are fixedly connected with the bottom end of the box body, a plurality of rollers are movably connected with the bottom end of the box body, the bottom end of the inner cavity of the box body is provided with a discharging device, the left side of the inner cavity of the box body is fixedly connected with a first chute, first slider one side has first horizontal pole through bearing swing joint, the one end that first slider was kept away from to first horizontal pole passes first spout and is equipped with collection device, the dodge gate has been seted up on the left side of the box. The utility model discloses a series of structures make this device have the multi-angle and adsorb the dust, and effectual.
Description
Technical Field
The utility model relates to a cement manufacture technical field specifically is a dust collector for cement manufacture.
Background
In cement plant manufacturing enterprises, a large amount of dust is inevitably generated, and if workers do not wear proper protective masks, the health is seriously affected and serious diseases caused by pneumoconiosis are caused if excessive dust is inhaled for a long time. However, at present, some cement production enterprises in areas with large dust only adopt industrial fans to blow the dust to other places, which can treat the symptoms and the root causes. Even if dust removing equipment is provided, the conventional structures such as the air frame matched with the dust removing cloth bag are commonly adopted, only the air is drawn from the area generating dust, the dust is not absorbed in the area generating dust in multiple directions, and the effect is poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem lie in overcoming prior art and do not have the region of multidirectional production dust and absorb the dust, and the relatively poor defect of effect, provide a dust collector for cement manufacture. The dust removal device for cement production has the characteristics that dust is absorbed in an area where dust is generated in multiple directions, the effect is poor, and the like.
In order to achieve the above object, the utility model provides a following technical scheme: a dust removal device for cement production comprises a box body, wherein two water tanks are fixedly connected with the inner cavity of the box body, the water tank is arranged symmetrically left and right with the center of the tank body as the center line, one end of the water tank is inserted with the water pump, the other end of the water tank is inserted with the water inlet pipe, one end of the water inlet pipe passes through the tank body, and extends to the outer side of the box body, an absorption device is arranged in the inner cavity of the box body, a plurality of rollers are fixedly connected with the bottom end of the box body, a plurality of rollers are movably connected with the bottom end of the box body, the bottom end of the inner cavity of the box body is provided with a discharging device, the left side of the inner cavity of the box body is fixedly connected with a first chute, a first sliding block is connected in a sliding way in the inner cavity of the first sliding chute, one side of the first sliding block is movably connected with a first cross rod through a bearing, one end, far away from the first sliding block, of the first cross rod penetrates through the first sliding groove and is provided with a collecting device, and a movable door is arranged on the left side of the box body.
Preferably, the absorption device comprises two dust collectors, the box body is provided with an opening matched with the dust collectors, the opening is fixedly connected with a bearing, the bottom end of each dust collector penetrates through the opening and extends to the inner cavity of the box body, the two dust collectors are fixedly connected with first sheaves, a first belt is fixedly connected between the first sheaves and the first sheaves, a first bevel gear is arranged below one of the first sheaves, the first bevel gear is fixedly connected to the dust collectors, the first bevel gears are meshed with second bevel gears, a first rotating rod is fixedly connected to one side of the second bevel gear, which is far away from the first bevel gear, the box body is provided with an opening matched with the first rotating rod, the opening is fixedly connected with a bearing, one end of the first rotating rod, which is far away from the second bevel gear, penetrates through the bearing, and extend to the outside of the box body and are fixedly connected with a first motor.
Preferably, the collecting device comprises a collecting frame, the left side of the collecting frame is fixedly connected with a first cross rod, the right side of the collecting frame is fixedly connected with a second rotating rod, one end of the second rotating rod, far away from the collecting frame, is fixedly connected with a second motor, one end of the second motor, far away from the second rotating rod, is fixedly connected with a first connecting rod, one end of the first connecting rod, far away from the second motor, is fixedly connected with a first slider, the top end of the collecting frame is fixedly connected with two first inclined plates, the first inclined plates are arranged in a bilateral symmetry manner by taking the center of the collecting frame as a central line, the bottom end of the collecting frame is provided with a plurality of discharge ports, the bottom end of the collecting frame is fixedly connected with a vibrating motor, and a second vertical rod is attached to the lower side of the collecting frame, the utility model discloses a first rotating rod, including first montant, second montant, box, bearing, second horizontal pole, cover, second sheave, third sheave, second montant one side fixedly connected with second horizontal pole, set up the opening that matches each other with the second horizontal pole on the box, fixedly connected with bearing on the opening, the bearing is passed to the one end that the second montant was kept away from to the second horizontal pole, and extends to the box outside, the cover is equipped with the second sheave on the second horizontal pole, second sheave top is equipped with the third sheave, the third sheave overlaps and establishes on first rotating rod, fixedly connected with second belt between second sheave and the third sheave.
Preferably, discharging device includes the second spout, second spout fixed connection is on the box inner chamber bottom, second spout inner chamber sliding connection has the second slider, the first montant of second slider top fixedly connected with, the second spout is passed on first montant top to fixedly connected with collecting vat, second slider inner chamber fixedly connected with nut, the box left side is equipped with the action bars, action bars one end fixedly connected with threaded rod, the threaded rod is kept away from action bars one end and is passed box, second spout and nut in proper order, and passes the second spout outside to through bearing swing joint on the second spout.
Preferably, the number of the rollers (5) is at least four, the rollers (5) are symmetrically arranged on the left and right sides of the center line of the box body (1), the rollers (5) are sleeved with anti-skid sleeves, and anti-skid lines are arranged on the anti-skid sleeves.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the absorption device, the dust collector, the first grooved wheel, the first belt, the first bevel gear, the second bevel gear, the first rotating rod and the first motor can be matched for use, dust can be absorbed while the absorption device rotates, and dust collection efficiency is improved.
2. Can match the use each other between discharging device, second spout, second slider, first montant, nut, collecting vat, action bars and the threaded rod, can make things convenient for pouring out of material, the simple operation.
3. Can match the use each other through between collection device, collection frame, second bull stick, second motor, first swash plate, second swash plate, discharge gate, vibrating motor, second montant, second horizontal pole, second sheave, third sheave and the second belt, make things convenient for the collection of material, shake about collecting the frame through the second montant, make things convenient for the quick ejection of compact of material.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an enlarged view of a portion a in fig. 1 according to the present invention.
Reference numbers in the figures: 1. a box body; 2. a water tank; 3. a water inlet pipe; 4. an absorption device; 40. a vacuum cleaner; 41. A first sheave; 42. a first belt; 43. a first bevel gear; 44. a second bevel gear; 45. a first rotating lever; 46. a first motor; 5. a roller; 6. a discharging device; 60. a second chute; 61. a second slider; 62. a first vertical bar; 63. a nut; 64. collecting tank; 65. an operating lever; 66. a threaded rod; 7. a first chute; 8. a first slider; 9. a first cross bar; 10. a collection device; 100. a collection frame; 101. a second rotating rod; 102. a second motor; 103. a first sloping plate; 104. a second swash plate; 105. a discharge port; 106. A vibration motor; 107. a second vertical bar; 108. a second cross bar; 109. a second sheave; 1090. a third sheave; 1091. a second belt; 11. a movable door; 12. and (4) a water pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a dust removal device for cement production comprises a box body 1, two water tanks 2 are fixedly connected in an inner cavity of the box body 1, the water tanks 2 are arranged in bilateral symmetry by taking the center of the box body 1 as a central line, a water pump 12 is inserted in one end of each water tank 2, a water inlet pipe 3 is inserted in the other side of each water tank 2, one end of each water inlet pipe 3 penetrates through the box body 1 and extends to the outer side of the box body 1, an absorption device 4 is arranged in the inner cavity of the box body 1, the box body 1 is provided with openings matched with the dust collectors 40, bearings are fixedly connected on the openings, the bottom ends of the dust collectors 40 penetrate through the openings and extend to the inner cavity of the box body 1, first grooved wheels 41 are fixedly connected on the two dust collectors 40, a first belt 42 is fixedly connected between the first grooved wheels 41 and the first grooved wheels 41, a first conical gear 43 is arranged below one of the first, the first conical gear 43 is meshed with the second conical gear 44, one side of the second conical gear 44 far away from the first conical gear 43 is fixedly connected with a first rotating rod 45, the box body 1 is provided with an opening matched with the first rotating rod 45, the opening is fixedly connected with a bearing, one end of the first rotating rod 45 far away from the second conical gear 44 penetrates through the bearing and extends to the outer side of the box body 1, and is fixedly connected with a first motor 46 which can rotate and absorb dust at the same time, so that the dust absorption efficiency is improved, the bottom end of the box body 1 is fixedly connected with a plurality of idler wheels 5, the bottom ends of the box bodies 1 are movably connected with a plurality of idler wheels 5, at least four idler wheels 5 are arranged, the idler wheels 5 are arranged in bilateral symmetry by taking the center of the box body 1 as a center line, the idler wheels 5 are sleeved with anti-skid sleeves, and anti-, the discharging device 6 comprises a second chute 60, the second chute 60 is fixedly connected to the bottom of the inner cavity of the box body 1, the inner cavity of the second chute 60 is slidably connected with a second sliding block 61, the top end of the second sliding block 61 is fixedly connected with a first vertical rod 62, the top end of the first vertical rod 62 passes through the second chute 60 and is fixedly connected with a collecting groove 64, the inner cavity of the second sliding block 61 is fixedly connected with a nut 63, the left side of the box body 1 is provided with an operating rod 65, one end of the operating rod 65 is fixedly connected with a threaded rod 66, one end of the threaded rod 66 far away from the operating rod 65 sequentially passes through the box body 1, the second chute 60 and the nut 63 and passes through the outer side of the second chute 60 and is movably connected to the second chute 60 through a bearing, so as to facilitate the collection of materials, the collecting frame 100 can be shaken up and down through a second vertical rod 107, the first chute 7 is, one side of the first sliding block 8 is movably connected with a first cross bar 9 through a bearing, one end of the first cross bar 9 far away from the first sliding block 8 passes through the first chute 7 and is provided with a collecting device 10, the collecting device 10 comprises a collecting frame 100, the left side of the collecting frame 100 is fixedly connected with the first cross bar 9, the right side of the collecting frame 100 is fixedly connected with a second rotating rod 101, one end of the second rotating rod 101 far away from the collecting frame 100 is fixedly connected with a second motor 102, one end of the second motor 102 far away from the second rotating rod 101 is fixedly connected with a first connecting rod, one end of the first connecting rod far away from the second motor 102 is fixedly connected on the first sliding block 8, the top end of the collecting frame 100 is fixedly connected with two first inclined plates 103, the first inclined plates 103 are arranged in bilateral symmetry by taking the center of the collecting frame 100 as a center line, the bottom end of the collecting frame 100 is fixedly connected with two second inclined plates, a plurality of discharge gate 105 has been seted up to collection frame 100 bottom, collect frame 100 bottom fixedly connected with vibrating motor 106, it has second montant 107 to collect the laminating of frame 100 right side below, second montant 107 one side fixedly connected with second horizontal pole 108, set up the opening that matches each other with second horizontal pole 108 on the box 1, fixedly connected with bearing on the opening, the bearing is passed to the one end that second montant 107 was kept away from to second horizontal pole 108, and extend to the box 1 outside, the cover is equipped with second sheave 109 on the second horizontal pole 108, second sheave 109 top is equipped with third sheave 1090, third sheave 1090 overlaps and establishes on first bull stick 45, fixedly connected with second belt 1091 between second sheave 109 and the third sheave 1090, can make things convenient for pouring out of material, the simple operation. The left side of the box body 1 is provided with a movable door 11.
The working principle is as follows: when the dust collector is used, the dust collector 40, the first motor 46 and the water pump 12 are started, the dust collector 40 absorbs dust, the first motor 46 drives the first rotating rod 45 to rotate, the first rotating rod 45 respectively drives the second bevel gear 44 and the third grooved wheel 1090 to rotate, the second bevel gear 44 drives the first bevel gear 43 to rotate, the first bevel gear 43 drives the dust collector 40 to rotate, the dust collector 40 drives the first grooved wheel 41 to rotate, the first grooved wheel 41 drives the other first grooved wheel 41 to rotate through the first belt 42, the first grooved wheel 41 drives the other dust collector 40 to rotate, the two dust collectors 40 rotate to collect dust, the collected dust drops to the lower part, the water pump 12 sprays water to the dropped dust, the water drops the dust to the inner cavity of the collecting frame 100, the third grooved wheel drives the second grooved wheel 109 to rotate through the 1090, the second grooved pulley 109 drives the second cross bar 108 to rotate, the second cross bar 108 drives the second vertical bar 107 to rotate, the top end of the second vertical bar 107 moves upwards towards the collection frame 100, the collection frame 100 drives the first sliding blocks 8 at two sides to move upwards in the inner cavity of the first sliding groove 7, so that the first sliding blocks 8 compress the spring, when the top end of the second vertical bar 107 is far away from the collection frame 100, the elastic force of the spring makes the first sliding blocks 8 move downwards, so that the collection frame 100 reciprocates upwards, impurities in dust are separated from water, the collection frame 100 is conveniently and quickly separated, the water drops to the inner cavity of the collection groove 64, when the work is completed, the dust collector 40, the first motor 46 and the water pump 12 are closed, then the operating rod 65 is rotated, the operating rod 65 drives the threaded rod 66 to rotate, the threaded rod 66 drives the nut 63 to rotate, the nut 63 drives the second sliding block 61 to move, the second sliding block 61 drives the first vertical bar 62, the first vertical rod 62 drives the collecting tank 64 to open the valve, then sewage in the inner cavity of the collecting tank 64 is poured out, then the collecting tank 64 is placed on the first vertical rod 62, the collecting tank 64 is enabled to return to the position below the collecting frame 100 through rotation of the operating rod 65, then the second motor 102 is started, the second motor 102 drives the second rotating rod 101 to rotate, the second rotating rod 101 drives the collecting frame 100 to rotate, the collecting frame 100 drives the first cross rod 9 to rotate, then the collecting frame 100 rotates to the position below, the second motor 102 is closed, the vibration motor 106 is opened, the vibration motor 106 enables materials in the inner cavity of the collecting frame 100 to fall down, the materials in the inner cavity of the collecting frame 100 are shaken to fall cleaner, the first inclined plate 103 and the second inclined plate 104 can effectively enable the prepared materials to fall into the inner cavity of the collecting tank 64 to avoid falling to the position outside the collecting tank 64, then the operating rod 65 is rotated to pour out the materials in the, the above is the whole working process of the utility model.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a dust collector for cement manufacture, includes box (1), its characterized in that: the water tank is characterized in that two water tanks (2) are fixedly connected to the inner cavity of the tank body (1), the water tanks (2) are arranged in a bilateral symmetry mode by taking the center of the tank body (1) as a central line, a water pump (12) is inserted into one end of each water tank (2), a water inlet pipe (3) is inserted into the other side of each water tank (2), one end of each water inlet pipe (3) penetrates through the tank body (1) and extends to the outer side of the tank body (1), an absorption device (4) is arranged in the inner cavity of the tank body (1), a plurality of idler wheels (5) are fixedly connected to the bottom end of the tank body (1), a plurality of idler wheels (5) are movably connected to the bottom end of the tank body (1), a discharge device (6) is arranged at the bottom end of the inner cavity of the tank body (1), a first chute (7) is fixedly connected to the left side of the inner cavity of the tank, one end, far away from the first sliding block (8), of the first cross rod (9) penetrates through the first sliding groove (7) and is provided with a collecting device (10), and a movable door (11) is arranged on the left side of the box body (1).
2. The dust removing device for cement production according to claim 1, characterized in that: the absorption device (4) comprises two dust collectors (40), openings matched with the dust collectors (40) are formed in the box body (1), bearings are fixedly connected to the openings, the bottom ends of the dust collectors (40) penetrate through the openings and extend to the inner cavity of the box body (1), first grooved wheels (41) are fixedly connected to the two dust collectors (40), a first belt (42) is fixedly connected between the first grooved wheels (41) and the first grooved wheels (41), a first conical gear (43) is arranged below one of the first grooved wheels (41), the first conical gear (43) is fixedly connected to the dust collectors (40), second conical gears (44) are meshed with each other, and a first rotating rod (45) is fixedly connected to one side, far away from the first conical gear (43), of the second conical gear (44), the opening that matches each other with first bull stick (45) is seted up on box (1), fixedly connected with bearing on the opening, second bevel gear (44) one end is kept away from in first bull stick (45) passes the bearing, and extends to the box (1) outside to the first motor of fixedly connected with (46).
3. The dust removing device for cement production according to claim 1, characterized in that: the collecting device (10) comprises a collecting frame (100), the left side of the collecting frame (100) is fixedly connected with a first cross rod (9), the right side of the collecting frame (100) is fixedly connected with a second rotating rod (101), one end, far away from the collecting frame (100), of the second rotating rod (101) is fixedly connected with a second motor (102), one end, far away from the second rotating rod (101), of the second motor (102) is fixedly connected with a first connecting rod, one end, far away from the second motor (102), of the first connecting rod is fixedly connected onto a first sliding block (8), the top end of the collecting frame (100) is fixedly connected with two first inclined plates (103), the first inclined plates (103) are arranged in a bilateral symmetry mode by taking the center of the collecting frame (100) as a center line, the bottom end of the collecting frame (100) is fixedly connected with two second inclined plates (104), and the second inclined plates (104) are arranged in a bilateral symmetry mode by taking the center of the collecting frame (100, a plurality of discharge holes (105) are arranged at the bottom end of the collecting frame (100), a vibration motor (106) is fixedly connected at the bottom end of the collecting frame (100), a second vertical rod (107) is attached to the lower part of the right side of the collecting frame (100), a second cross rod (108) is fixedly connected to one side of the second vertical rod (107), the box body (1) is provided with an opening which is matched with the second cross bar (108), a bearing is fixedly connected on the opening, one end of the second cross rod (108) far away from the second vertical rod (107) penetrates through the bearing, and extends to the outer side of the box body (1), a second grooved wheel (109) is sleeved on the second cross rod (108), a third grooved wheel (1090) is arranged above the second grooved wheel (109), the third grooved wheel (1090) is sleeved on the first rotating rod (45), and a second belt (1091) is fixedly connected between the second grooved wheel (109) and the third grooved wheel (1090).
4. The dust removing device for cement production according to claim 1, characterized in that: the discharging device (6) comprises a second chute (60), the second chute (60) is fixedly connected to the bottom end of the inner cavity of the box body (1), a second sliding block (61) is connected in a sliding manner in the inner cavity of the second sliding groove (60), a first vertical rod (62) is fixedly connected to the top end of the second sliding block (61), the top end of the first vertical rod (62) penetrates through the second sliding groove (60), and is fixedly connected with a collecting groove (64), the inner cavity of the second sliding block (61) is fixedly connected with a nut (63), an operating rod (65) is arranged on the left side of the box body (1), a threaded rod (66) is fixedly connected with one end of the operating rod (65), one end of the threaded rod (66) far away from the operating rod (65) sequentially penetrates through the box body (1), the second sliding groove (60) and the nut (63), and penetrates through the outer side of the second sliding chute (60) and is movably connected to the second sliding chute (60) through a bearing.
5. The dust removing device for cement production according to claim 1, characterized in that: the number of the rollers (5) is at least four, the rollers (5) are arranged in a bilateral symmetry mode by taking the center of the box body (1) as a central line, the rollers (5) are sleeved with anti-skidding sleeves, and anti-skidding lines are arranged on the anti-skidding sleeves.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202020422882.1U CN212349823U (en) | 2020-03-29 | 2020-03-29 | Dust collector for cement manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202020422882.1U CN212349823U (en) | 2020-03-29 | 2020-03-29 | Dust collector for cement manufacture |
Publications (1)
Publication Number | Publication Date |
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CN212349823U true CN212349823U (en) | 2021-01-15 |
Family
ID=74147933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202020422882.1U Expired - Fee Related CN212349823U (en) | 2020-03-29 | 2020-03-29 | Dust collector for cement manufacture |
Country Status (1)
Country | Link |
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CN (1) | CN212349823U (en) |
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2020
- 2020-03-29 CN CN202020422882.1U patent/CN212349823U/en not_active Expired - Fee Related
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Legal Events
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20220428 Address after: 438300 xiaohetou Industrial Park, Gulou office, Macheng City, Huanggang City, Hubei Province Patentee after: Hubei Macheng Hongji building materials Co.,Ltd. Address before: 530300 No. 360, weicha village, Linjiang village, Xiaoyi Town, Heng County, Nanning City, Guangxi Zhuang Autonomous Region Patentee before: Huang Xianfan |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210115 |