CN110513041A - A kind of construction of ground is with moving rectangular drilling equipment - Google Patents
A kind of construction of ground is with moving rectangular drilling equipment Download PDFInfo
- Publication number
- CN110513041A CN110513041A CN201910915197.4A CN201910915197A CN110513041A CN 110513041 A CN110513041 A CN 110513041A CN 201910915197 A CN201910915197 A CN 201910915197A CN 110513041 A CN110513041 A CN 110513041A
- Authority
- CN
- China
- Prior art keywords
- driving
- drill boom
- rack
- borehole
- component
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/22—Rods or pipes with helical structure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
Abstract
The invention discloses a kind of construction of ground with moving rectangular drilling equipment, including rack；In rack；Rack is driven to carry out the mobile crawler belt in position for driving；Center borehole component on mud storage chamber central part position；Block cover is delivered to the mud storage chamber for matching the mud that will be generated during borehole with center borehole component；Driving part, for driving the rack to move up and down；Multiple side borehole components are used for and center borehole component matching synthesis type square hole；Accessory is translated, for driving drill boom and the driven in translation component location fit after drill boom is moved to designated position.Center borehole component and side wellbore part of the present invention can work simultaneously, and rapid operation, work efficiency is high；And the soil being drilled during rotary digging will be transported in mud storage chamber under the left and right of block cover and store, and reduce later period worker to the workload of the soil cleaning in borehole.
Description
Technical field
The invention belongs to technical field of building construction, are filled more particularly, to a kind of construction of ground with rectangular drilling is moved
It sets.
Background technique
In building construction process, usually require to drill out rectangular drilling, Zhi Houzai on the ground before building base for post
Casting concrete forms base for post in the borehole.But existing excavation mode is usually to use digging machine to carry out multiple plane to dig, and is formed
The borehole of one general shape forms rectangular borehole by manually shoveling to dig again later, and working efficiency is low, and operates laborious.
Summary of the invention
For overcome the deficiencies in the prior art, providing one kind, work efficiency is high by the present invention, and the ground of rapid operation, which is built, to be used
Move rectangular drilling equipment.
To achieve the goals above, the invention adopts the following technical scheme: a kind of construction of ground is with moving rectangular drilling
Device, including
Rack；
In rack；
Rack is driven to carry out the mobile crawler belt in position for driving；
Center borehole component on mud storage chamber central part position；
Block cover is delivered to the mud storage chamber for matching the mud that will be generated during borehole with center borehole component；
Driving part, for driving the rack to move up and down；
Multiple side borehole components, for center borehole component matching synthesis type square hole, including can rotate drill boom,
For driving the actuator of drill boom rotation, the displacement drive part for driving drill boom up and down action and for being moved to finger in drill boom
Positioning postpones the driven in translation component that driving drill boom is moved forward and backward；
Accessory is translated, for driving drill boom to match after drill boom is moved to designated position with driven in translation component positioning
It closes.
Center borehole component and side wellbore part are provided in the application, and multiple side borehole components are in quadrangle point
Cloth drills out the brill on basis so that center borehole component and side wellbore part can work simultaneously when carrying out borehole operation
Hole；Drill boom carries out fore-aft motion under the driving of driven in translation component later, and drill boom still occurs to turn during fore-aft motion
It is dynamic, rotary digging is carried out to the four edges line of centre-drilling hole ambient side, thus directly rotary digging can go out the digging mouth of a basic squarely,
And digging the remaining a small amount of soil of mouth can be loosened by worker's progress simple push, rapid operation, work efficiency is high；And rotary digging process
In the soil that is drilled will be transported in mud storage chamber and store under the left and right of block cover, avoid in borehole that there are more soil
And rotary digging effect is influenced, later period worker is decreased to the workload of the soil cleaning in borehole, so that borehole operation more saves
Power.
The center borehole component include drill bit, on drill bit outer wall spiral guide portion, the electricity that is connected with the drill bit
Machine and the cylinder being connected with the motor, the cylinder are set to outside the mud storage chamber, and the mud storage chamber lower part is set to and passes through for drill bit
Opening, the block cover is connected with the opening, and the side wall of the spire fits with the inner wall of the block cover；Spiral guide portion
The rotary digging width for expanding drill bit can either be facilitated by being arranged, and can cooperate block cover that the soil drilled out is delivered to the mud storage chamber on top
It is interior, reduce the components investment of equipment.
The driving part includes set on frame side wall upper connecting base, the fixing seat on crawler belt and being set in fixing seat
The jacking part being connected with the attachment base；By jacking part setting can height of the rack relative to ground, thus to the depth of borehole
Degree is controlled, easy to operate.
The driven in translation component includes the shell being fixedly arranged in rack, the hydraulic cavities being set in the housing and the hydraulic cavities
The telescopic rod and the positioning ring in the telescopic rod end being connected, multiple shells pass through pipeline and a hydraulic station phase respectively
Even, and multiple shells are distributed in four-corner structure；Feed flow is carried out to multiple hydraulic cavities simultaneously by a hydraulic station, is effectively reduced dynamic
The setting of power part reduces energy consumption；The elongation of telescopic rod is realized by the way of hydraulic-driven, stroke length is big, enables device
The degree of the borehole of enough rotary diggings is bigger, lifting construction efficiency.
The translation accessory includes set on the first magnet iron piece of the drill boom upper end, set on displacement drive part lower end
Second magnet iron piece, the first positioning convex portion on actuator and the second positioning convex portion, be set to the positioning ring on for this first,
The through slot that second positioning convex portion passes through and the intermittent driving component for driving the drill boom intermittent rotary；Described first, second is fixed
Position protrusion is in distribution up and down, and the spacing between the first, second positioning convex portion is equal to the thickness of positioning ring；When drill boom moves down
To positioning ring between the first, second positioning convex portion when position, the intermittent driving Component driver drill boom rotation, so that through slot
With the first, second positioning convex portion mutual dislocation；Under above structure, when can pass through force piece realize drill boom in longitudinal rotary digging and
It is driven during lateral rotary digging by the same rotary drive and realizes rotation, so as to avoid setting for multiple rotary drives
It sets, has saved energy consumption；And under above structure, it can effectively ensure that drill boom carries out lateral rotation after completing longitudinal rotary digging again
It digs, and carries out program limitation or setting inductor etc. without special setting controller and carry out induction control, the structure of equipment is more
To be simple, equipment is like at low cost；Band body program or induction control by the way of purely mechanic cooperation, failure rate is lower, uses
Service life is long.
The intermittent driving component includes the rotating seat being connected with displacement drive part upper end, the external tooth on rotating seat
Part, the rack gear being meshed with the outer tooth on four rotating seats, the gear member being fixedly arranged on a wherein rotating seat and the gear member
The driving gear being meshed and the rotary drive being connected with the driving gear；The rotating seat top is rotatably arranged in machine
On frame, and cooperate with rack anticreep；Under this kind of structure, an actuator, which is only arranged, can synchronize four rotating seat rotations of transfer,
Energy saving；And guarantee the being consistent property of movement between four drill booms, promote borehole efficiency.
The drill boom outer wall is equipped with sidetracking portion；Under this kind of structure, drill boom is allowed to pass through sidetracking in lateral movement
Portion is first by the soil relaxation of side, so that the movement of drill boom is more smoothly.
The sidetracking portion be set on drill boom outer surface and protrude from drill boom outer surface setting screw type convex ribs, the convex ribs
Outside be blade；The setting of blade enables drill boom in lateral movement more readily by ground movement；And helical form
Setting, then enable drill boom that the soil being drilled loose is delivered up to ground in lateral movement, soil pair be effectively reduced
It is influenced caused by drill boom is mobile.
Center borehole component and side wellbore part of the present invention can work simultaneously, and rapid operation, work efficiency is high；And
The soil being drilled during rotary digging will be transported in mud storage chamber under the left and right of block cover to be stored, and later period worker is reduced
To the workload of the soil cleaning in borehole.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is front view of the invention.
Fig. 3 is the cross-sectional view in Fig. 2 along line A-A.
Fig. 4 is the cross-sectional view in Fig. 2 along line B-B.
Fig. 5 is the partial enlarged view in Fig. 4.
Fig. 6 is the cross-sectional view in Fig. 2 along G-G line.
Specific embodiment
As shown in figures 1 to 6, a kind of ground construction is with rectangular drilling equipment is moved, including rack 1, the storage in rack
Mud room 2 drives rack to carry out the mobile crawler belt 3 in position, the center borehole portion on 2 central part position of mud storage chamber for driving
Part is delivered to the block cover 4 of the mud storage chamber 2 for matching the mud that will be generated during borehole with center borehole component, is used for
The rack 1 is driven to move up and down driving part, multiple side borehole components and translation accessory in quadrangle distribution, this is more
A side borehole component is used to be used for mobile in drill boom 51 with center borehole component matching synthesis type square hole, translation accessory
Drill boom 51 and the driven in translation component location fit are driven after to designated position.
Specifically, side borehole component include the drill boom 51 that can be rotated, for drive drill boom rotate actuator 52,
For driving the displacement drive part 53 of drill boom up and down action and for driving 51 front and back of drill boom after drill boom is moved to designated position
Mobile driven in translation component；51 outer wall of drill boom is equipped with sidetracking portion 511, which is set on drill boom outer surface
And the convex ribs of the screw type of 51 outer surface of drill boom setting are protruded from, which is integrally formed with drill boom is made, and convex ribs is outer
Side is blade；Wherein actuator is the motor purchased on the market, and displacement drive part is the hydraulic stem purchased on the market；
The driven in translation component includes the shell 71 being fixedly arranged in rack, the hydraulic cavities being set in the housing, is connected with the hydraulic cavities
Telescopic rod 72 and the positioning ring 73 in the telescopic rod end, multiple shells 71 respectively pass through pipeline 75 and a hydraulic station 74
It is connected, and multiple shells 71 are distributed in four-corner structure；Wherein, telescopic rod is two poles being mutually socketed, and between two poles
Cooperate for sealing,.When being pressed into hydraulic oil in hydraulic cavities, pole will extend；Above-mentioned hydraulic station can be directly to adopt on the market
It buys, repeats no more.
The translation accessory includes set on the first magnet iron piece 81 of the drill boom upper end, set on displacement drive part lower end
The second magnet iron piece 82, the first positioning convex portion 83 on actuator and the second positioning convex portion 84, be set to the positioning ring on
The through slot 85 passed through for first, second positioning convex portion and the intermittent driving component for driving the drill boom intermittent rotary；It is described
First, second positioning convex portion is in distribution up and down, and the spacing between the first, second positioning convex portion is equal to the thickness of positioning ring 73；
When drill boom 51 is moved downward to the position between the first, second positioning convex portion of positioning ring 73, the intermittent driving component is driven
Dynamic drill boom rotation, so that through slot 85 and the first, second positioning convex portion mutual dislocation；Wherein, the first magnet iron piece 81 and the second magnet
Part 82 is the magnet purchased on the market, and the fixation of the first magnet iron piece 81 is embedded on drill boom, and the fixation of the second magnet iron piece 82 is embedding
It is located on displacement drive part；Above-mentioned the first, second positioning convex portion referred to is the gold being installed on actuator shell by screw
Belong to convex block.
The intermittent driving component includes the rotating seat 91 being connected with displacement drive part upper end, the external tooth on rotating seat
Part 92, the rack gear 93 being meshed with the outer tooth on four rotating seats, the gear member 94 being fixedly arranged on a wherein rotating seat, with should
The driving gear 95 that gear member is meshed and the rotary drive 96 being connected with the driving gear；91 top of rotating seat can turn
Dynamic is arranged in rack 1, and cooperates with 1 anticreep of rack；Wherein, which is evenly spaced distribution and rotating seat appearance
A circle double wedge on face, and double wedge is integrally formed with rotating seat and is made；The rack gear is the synchronous belt purchased on the market,
Gear member and driving gear are the gear purchased on the market, and rotary drive is then motor, and drives gear and motor
Output shaft be connected.
The center borehole component includes metal bit 61, the spiral guide portion 62 on drill bit outer wall and the drill bit
Connected motor and the cylinder 63 being connected with the motor, the cylinder are set to outside the mud storage chamber 2, and 2 lower part of mud storage chamber is set
In the opening 21 passed through for drill bit, the block cover 4 is connected with the opening, side wall and the block cover 4 in spiral guide portion 62
Inner wall fits；Wherein, spiral guide portion is integrally formed with drill bit is made；The driving part includes being set on frame side wall
Attachment base 11, the fixing seat 12 on crawler belt and the jacking part 13 being connected in fixing seat with the attachment base, the jacking part
Preferably hydraulic stem.
The specific working principle is as follows: device being moved on the position for needing borehole by the movement of crawler belt, later drill bit
With quadrangle distribution drill boom synchronize rotate, and rotation while downward actuation, to ground carry out rotary digging；To rotary digging to finger
After depthkeeping degree, drill bit stops rotary digging；And the first positioning convex portion is just passed through through slot at this time, so that positioning ring is displaced the first convex
Between portion and the second positioning convex portion；Rotary drive starts later, drives racks turn, and then drives actuator rotation, so that
The position of first, second positioning convex portion and through slot is staggered, and rotary drive stops immediately；Displacement drive part is reset to initially later
State, the first, second magnetic patch mutually disengage；Hydraulic station, which starts, later is filled with hydraulic oil into shell, so that telescopic rod is to overhanging
It is long, drill boom lateral movement is driven, since drill boom is also rotating simultaneously, so that the side wall sideline to centre-drilling hole carries out rotary digging.
Claims (8)
1. a kind of construction of ground is with moving rectangular drilling equipment, it is characterised in that: including
Rack (1)；
Mud storage chamber (2) in rack；
Rack is driven to carry out the mobile crawler belt (3) in position for driving；
Center borehole component on mud storage chamber (2) central part position；
Block cover (4) is delivered to the mud storage chamber (2) for matching the mud that will be generated during borehole with center borehole component；
Driving part, for driving the rack (1) to move up and down；
Multiple side borehole components, for center borehole component matching synthesis type square hole, including the drill boom that can be rotated
(51), for driving the actuator (52) of drill boom rotation, the displacement drive part (53) for driving drill boom up and down action and being used for
The driven in translation component for driving drill boom (51) to be moved forward and backward after drill boom is moved to designated position；
Accessory is translated, for driving drill boom (51) and the driven in translation component after drill boom (51) is moved to designated position
Location fit.
2. ground according to claim 1 construction is with moving rectangular drilling equipment, it is characterised in that: the center borehole
Component include drill bit (61), the spiral guide portion (62) on drill bit outer wall, the motor being connected with the drill bit and with the motor
Connected cylinder (63), the cylinder be set to that the mud storage chamber (2) are external, and mud storage chamber (2) lower part is set to be passed through for drill bit
It is open (21), the block cover (4) is connected with the opening, the inner wall phase of the side wall in spiral guide portion (62) and the block cover (4)
Fitting.
3. ground according to claim 1 construction is with moving rectangular drilling equipment, it is characterised in that: the driving part
Including being set to frame side wall upper connecting base (11), the fixing seat (12) on crawler belt and being set in fixing seat and the attachment base phase
Jacking part (13) even.
4. ground according to claim 1 construction is with moving rectangular drilling equipment, it is characterised in that: the driven in translation
Component includes the shell (71) being fixedly arranged in rack, the hydraulic cavities being set in the housing, the telescopic rod being connected with the hydraulic cavities
(72) positioning ring (73) and in the telescopic rod end, multiple shells (71) pass through pipeline (75) and a hydraulic station respectively
(74) it is connected, and multiple shells (71) are distributed in four-corner structure.
5. ground according to claim 4 construction is with moving rectangular drilling equipment, it is characterised in that: the translation assists
Component include set on the drill boom upper end the first magnet iron piece (81), set on displacement drive part lower end the second magnet iron piece (82),
The first positioning convex portion (83) and the second positioning convex portion (84) on actuator, be set on the positioning ring for this first, the
The through slot (85) that two positioning convex portions pass through and the intermittent driving component for driving the drill boom intermittent rotary；Described first, second
Positioning convex portion is in distribution up and down, and the spacing between the first, second positioning convex portion is equal to the thickness of positioning ring (73)；Work as drill boom
(51) positioning ring (73) is moved downward between the first, second positioning convex portion when position, the intermittent driving Component driver
Drill boom rotation, so that through slot (85) and the first, second positioning convex portion mutual dislocation.
6. ground according to claim 5 construction is with moving rectangular drilling equipment, it is characterised in that: the intermittent driving
Component includes the rotating seat (91) being connected with displacement drive part upper end, the outer tooth (92) on rotating seat and four rotations
Rack gear (93) that outer tooth on seat is meshed, the gear member (94) being fixedly arranged on a wherein rotating seat are mutually nibbled with the gear member
The driving gear (95) of conjunction and the rotary drive (96) being connected with the driving gear；Rotating seat (91) top is rotatable
It is arranged on rack (1), and cooperates with rack (1) anticreep.
7. ground according to claim 6 construction is with moving rectangular drilling equipment, it is characterised in that: the drill boom (51)
Outer wall is equipped with sidetracking portion (511).
8. ground according to claim 7 construction is with moving rectangular drilling equipment, it is characterised in that: the sidetracking portion
(511) for set on drill boom outer surface and protrude from drill boom (51) outer surface setting screw type convex ribs, the outside of the convex ribs is
Blade.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011473148.9A CN112324330A (en) | 2019-09-26 | 2019-09-26 | Drilling device for foundation construction |
| CN201910915197.4A CN110513041B (en) | 2019-09-26 | 2019-09-26 | Movable square drilling device for foundation construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910915197.4A CN110513041B (en) | 2019-09-26 | 2019-09-26 | Movable square drilling device for foundation construction |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011473148.9A Division CN112324330A (en) | 2019-09-26 | 2019-09-26 | Drilling device for foundation construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110513041A true CN110513041A (en) | 2019-11-29 |
| CN110513041B CN110513041B (en) | 2021-04-06 |
Family
ID=68633717
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011473148.9A Withdrawn CN112324330A (en) | 2019-09-26 | 2019-09-26 | Drilling device for foundation construction |
| CN201910915197.4A Expired - Fee Related CN110513041B (en) | 2019-09-26 | 2019-09-26 | Movable square drilling device for foundation construction |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011473148.9A Withdrawn CN112324330A (en) | 2019-09-26 | 2019-09-26 | Drilling device for foundation construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN112324330A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931050A (en) * | 2021-10-28 | 2022-01-14 | 山东路达工程设计咨询有限公司 | Highway pavement repairing structure and repairing method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113026754A (en) * | 2021-04-20 | 2021-06-25 | 王须峰 | Building pile driver |
| CN114351780A (en) * | 2022-01-17 | 2022-04-15 | 郭艳怀 | Landscape brightening engineering is with installation auxiliary device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201095748Y (en) * | 2007-09-28 | 2008-08-06 | 天津深基工程有限公司 | Rectangular and square filling pile pore-forming combined drilling tool |
| JP2014156755A (en) * | 2013-02-18 | 2014-08-28 | Maruko Juryo:Kk | Excavation rod |
| CN104196450A (en) * | 2014-08-25 | 2014-12-10 | 江苏长城石油装备制造有限公司 | Improved drilling tool for soft geological layer reinforcement |
| JP2015031147A (en) * | 2013-08-05 | 2015-02-16 | 貴之 池田 | Concrete block for foundation, and planar foundation structure using the same |
-
2019
- 2019-09-26 CN CN202011473148.9A patent/CN112324330A/en not_active Withdrawn
- 2019-09-26 CN CN201910915197.4A patent/CN110513041B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201095748Y (en) * | 2007-09-28 | 2008-08-06 | 天津深基工程有限公司 | Rectangular and square filling pile pore-forming combined drilling tool |
| JP2014156755A (en) * | 2013-02-18 | 2014-08-28 | Maruko Juryo:Kk | Excavation rod |
| JP2015031147A (en) * | 2013-08-05 | 2015-02-16 | 貴之 池田 | Concrete block for foundation, and planar foundation structure using the same |
| CN104196450A (en) * | 2014-08-25 | 2014-12-10 | 江苏长城石油装备制造有限公司 | Improved drilling tool for soft geological layer reinforcement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931050A (en) * | 2021-10-28 | 2022-01-14 | 山东路达工程设计咨询有限公司 | Highway pavement repairing structure and repairing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110513041B (en) | 2021-04-06 |
| CN112324330A (en) | 2021-02-05 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Wei Inventor after: Cai Qun Inventor after: Cai Lunjie Inventor before: Cai Qun Inventor before: Cai Lunjie |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210318 Address after: No.23, Gaofeng village, Beizhang Town, Shengzhou City, Shaoxing City, Zhejiang Province Applicant after: Wang Wei Address before: 312599 dingjiayuan village, Yulin street, Xinchang County, Shaoxing City, Zhejiang Province Applicant before: Cai Qun |
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| GR01 | Patent grant | ||
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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: 20210406 Termination date: 20210926 |