CN111687951A - Equipment for preventing punching scraps from damaging user through wind energy - Google Patents

Equipment for preventing punching scraps from damaging user through wind energy Download PDF

Info

Publication number
CN111687951A
CN111687951A CN202010580226.9A CN202010580226A CN111687951A CN 111687951 A CN111687951 A CN 111687951A CN 202010580226 A CN202010580226 A CN 202010580226A CN 111687951 A CN111687951 A CN 111687951A
Authority
CN
China
Prior art keywords
punching
movably connected
wind energy
user
drill bit
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.)
Withdrawn
Application number
CN202010580226.9A
Other languages
Chinese (zh)
Inventor
王建富
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Channeling Technology Co ltd
Original Assignee
Hangzhou Channeling Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hangzhou Channeling Technology Co ltd filed Critical Hangzhou Channeling Technology Co ltd
Priority to CN202010580226.9A priority Critical patent/CN111687951A/en
Publication of CN111687951A publication Critical patent/CN111687951A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27CPLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C3/00Drilling machines or drilling devices; Equipment therefor
    • B27C3/08Operator-supported drilling machines or devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27GACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G3/00Arrangements for removing bark-zones, chips, waste, or dust, specially designed for use in connection with wood-working machine or in wood-working plants
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/14Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00Accessories specially adapted for use with machines or devices of the preceding groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/005Devices for the automatic drive or the program control of the machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/02Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mining & Mineral Resources (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

The invention relates to the technical field of decoration tools and discloses equipment for preventing punching scraps from damaging a user through wind energy. This avoid the piece damage user's equipment of punching through wind energy, through two sets of butt switches butt together, the device starts, and the impeller that punches rotates, strikes the object in step with the drill bit and punches, has avoided the unable problem of punching to hard object of single drill bit.

Description

Equipment for preventing punching scraps from damaging user through wind energy
Technical Field
The invention relates to the technical field of decoration tools, in particular to equipment for preventing punching scraps from damaging a user through wind energy.
Background
In the decoration industry, holes are often drilled in wooden walls or floors for installing pipes or fixing upholstery. Along with the higher and higher experience of people to the house among the daily life, also the requirement to the comfort and the smooth sense on wall or floor is higher and higher.
In the decoration industry, punching operation is often required, a drilling device is required to be used in the punching process at present, but on one hand, the existing drilling device generates large dust in the punching process, the dust slowly drifts into the direction of an operator along with the lifting of the punching, and if the operator does not take protective measures, the flying dust is easily sucked by the operator, and the health of the operator is seriously influenced by long-time operation; and traditional puncher all adopts the auger bit to punch, and this kind of traditional drill bit efficiency of punching is not very high, and application range is limited, and some comparatively firm materials such as granite, these traditional drill bits are because and the unicity of structure, are very difficult to smash and punch these materials.
Therefore, the device for preventing the punching debris from damaging the user through wind energy is provided, the dust debris generated in punching can be blown away, and the dust is prevented from being sucked into the lung of the user to cause damage to the body.
Disclosure of Invention
Technical scheme
In order to realize the advantages, the invention provides the following technical scheme: the equipment for preventing the punching scraps from damaging a user through wind energy comprises a handle, wherein a connecting bush is movably arranged on the outer side of the handle, one end, far away from the handle, of the connecting bush is movably connected with a connecting spring, one end, far away from the connecting bush, of the connecting spring is movably connected with an installation block, the outer side of the installation block is movably connected with an installation component, the outer side of the installation component is movably connected with a cleaning plate, a cleaning fan is arranged inside the cleaning plate, one end, far away from the connecting spring, of the installation block is movably connected with a connection component, the connection component is movably provided with the installation fan, the outer side of the connection component is movably connected with a butting ring, the outer side of the butting ring is movably connected with a shaft rod, the installation spring is clamped between the butting ring and the shaft rod, a receiving plate is movably arranged on the left side of, the left side of the movable rotating shaft is movably connected with a driving rod.
Preferably, the left side of the driving rod is movably connected with a punching drill bit for punching an object.
Preferably, the left side of the bearing plate is movably connected with a punching impeller which is used together with a punching drill bit to punch a hard object.
Preferably, an abutting spring is clamped on the left side of the abutting circular ring and the right side of the movable rotating shaft.
Preferably, an abutting switch is movably connected to the outer side of the abutting spring.
Preferably, the movable rotating shaft is circular and is a rotatable structure.
Preferably, the two groups of the punching impellers are symmetrically arranged, are arranged on two sides of the punching drill and are not in lap joint contact with the punching drill.
Preferably, the abutting switches are provided with two symmetrical groups which are not in abutting contact in a normal state; and a switch for controlling the perforated impeller and the mounting fan.
Advantageous effects
Compared with the prior art, the invention provides equipment for preventing punching debris from damaging a user through wind energy, and the equipment has the following beneficial effects:
1. this avoid piece damage user's equipment of punching through wind energy through to the diversified difference operation of drill bit and the impeller that punches, has avoided the waste of the energy, and clearance fan and installation fan can operate according to the actual need, cause the waste when having avoided synchronous use.
2. This avoid the piece damage user's equipment of punching through wind energy, through handheld handle, this device is held to another hand, aligns drill bit department to the wall of treating drilling, starting drive thereupon, and drill bit rotates thereupon, can realize the operation of punching to the wall.
3. This avoid piece damage user's equipment of punching through wind energy is provided with two sets of symmetry through the clearance board, will punch the drill bit frame inside it, the inside clearance fan of clearance board begins to rotate, adsorbs the dust that produces when punching the drill bit, avoids the dust to be inhaled the lung by the operator.
4. The device for preventing the punching debris from damaging a user through wind energy is started by abutting two groups of abutting switches together; the impeller that punches rotates, strikes the object in step with the drill bit and punches, has avoided the unable problem of punching to hard object of single drill bit.
5. This avoid piece damage user's equipment of punching through wind energy begins to rotate through the installation fan, blows the direction to the drill bit with a large amount of dusts that produce when punching drill bit and the impeller that punches, avoids the operator to inhale the dust.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the mounting assembly attachment of the present invention;
FIG. 3 is a schematic view of a cleaning fan according to the present invention;
FIG. 4 is a schematic view of a connection assembly according to the present invention;
FIG. 5 is a schematic view of a fan mounting connection structure according to the present invention;
FIG. 6 is a schematic view of the connection structure of the abutting rings of the present invention;
FIG. 7 is a schematic view of the shaft connecting structure of the present invention;
FIG. 8 is a schematic view of the connection structure of the abutting switch of the present invention.
In the figure: 1-grip, 2-connecting bush, 3-connecting spring, 4-mounting block, 5-mounting component, 6-cleaning plate, 7-cleaning fan, 8-connecting component, 9-mounting fan, 10-abutting ring, 11-shaft lever, 12-mounting spring, 13-bearing plate, 14-movable rotating shaft, 15-driving lever, 16-punching drill bit, 17-punching impeller, 18-abutting spring and 19-abutting switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, an apparatus for preventing damage to a user by punching debris through wind energy comprises a handle 1, a connecting bush 2 is movably mounted on the outer side of the handle 1, a connecting spring 3 is movably connected to one end, away from the handle 1, of the connecting bush 2, a mounting block 4 is movably connected to one end, away from the connecting bush 2, of the connecting spring 3, a mounting assembly 5 is movably connected to the outer side of the mounting block 4, a cleaning plate 6 is movably connected to the outer side of the mounting assembly 5, two symmetrical groups are arranged through the cleaning plate 6, a punching drill bit 16 is arranged inside the punching drill bit, a cleaning fan 7 inside the cleaning plate 6 starts to rotate, dust generated when the punching drill bit 16 punches holes is adsorbed, and the dust is prevented from being sucked into the lung by.
The inside of clearance board 6 is provided with clearance fan 7, and the one end swing joint that connecting spring 3 was kept away from to installation piece 4 has coupling assembling 8, and movable mounting has installation fan 9 on the coupling assembling 8, begins to rotate through installation fan 9, blows the direction to drill bit 16 with a large amount of dusts that produce when punching drill bit 16 and impeller 17 of punching, avoids the operator to inhale the dust.
The outside swing joint of coupling assembling 8 has butt ring 10, and the outside swing joint of butt ring 10 has axostylus axostyle 11, and the centre gripping has installation spring 12 between butt ring 10 and the axostylus axostyle 11, and the left side movable mounting of axostylus axostyle 11 has the board of accepting 13, and the inboard swing joint activity pivot 14 of accepting board 13, activity pivot 14 are circular, are rotatable structure. The left side swing joint of activity pivot 14 has actuating lever 15, and the left side swing joint of actuating lever 15 has drill bit 16, and through handheld handle 1, another hand holds this device, aims at drill bit 16 department the wall of treating drilling, and starting drive thereupon, drill bit 16 rotates thereupon, can realize the operation of punching to the wall.
The left side of the bearing plate 13 is movably connected with two groups of punching impellers 17, and the two groups of punching impellers 17 are symmetrically arranged and are arranged on two sides of the punching drill bit 16 and are not in lap joint contact with the punching drill bit; through to the diversified differentiation operation of boring bit 16 and impeller 17 that punches, avoided the waste of the energy, clearance fan 7 and installation fan 9 can operate according to the actual need, cause the waste when having avoided synchronous use.
Used simultaneously with the drill bit 16 to perforate hard objects. The left side of the abutting ring 10 and the right side of the movable rotating shaft 14 are clamped with an abutting spring 18, the outer side of the abutting spring 18 is movably connected with an abutting switch 19, the abutting switch 19 is provided with two symmetrical groups, and the abutting contact is not realized in a normal state; a switch for controlling the perforation impeller 17 and the installation fan 9; the device is started by the two sets of abutting switches 19 abutting together; the impeller 17 that punches rotates, and the drill bit 16 is synchronous to carry out the impact to the object and punches, has avoided the unable problem of punching to hard object of single drill bit 16.
The working principle is as follows: when the device is used, a user holds the handle 1 by hand, the other hand supports the device, the position of the punching drill bit 16 is aligned to a wall surface to be drilled, the device is started, the punching drill bit 16 rotates along with the device, and the punching operation on the wall surface can be realized; the cleaning plate 6 is provided with two sets of symmetries, and with 16 frames of hole drill bit in its inside, the inside cleaning fan 7 of cleaning plate 6 begins to rotate, adsorbs the dust that produces when punching 16 holes of hole drill bit, avoids the dust to be inhaled the lung by the operator.
When a very hard object needs to be drilled, a user pushes the drill bit 16 against the object, the hand-held grip 1 continuously presses the drill bit 16, and the drill bit 16 then pushes against the object to impact and generate reverse impact force; the punching drill 16 is abutted against the driving rod 15, the driving rod 15 is abutted against the movable rotating shaft 14 inwards, the movable rotating shaft 14 moves inwards to drive the two groups of bearing plates 13 to bend oppositely, the included angle is reduced, and the two groups of punching impellers 17 connected on the two groups of bearing plates are synchronously and relatively close to each other and are attached to the punching drill 16; meanwhile, the movable rotating shaft 14 moves inwards to press the abutting spring 18 connected with the movable rotating shaft, two groups of abutting switches 19 connected with the movable rotating shaft are synchronously abutted together, and the device is started; the punching impeller 17 rotates to synchronously impact and punch the object with the punching drill 16, so that the problem that a single punching drill 16 cannot punch a hard object is solved; at the same time, the mounting fan 9 connected to the rear thereof also starts to rotate, blowing dust in the direction of the drill bit 16, avoiding the operator from sucking in dust. Through to the diversified differentiation operation of boring bit 16 and impeller 17 that punches, avoided the waste of the energy, clearance fan 7 and installation fan 9 can operate according to the actual need, cause the waste when having avoided synchronous use.
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 (8)

1. An apparatus for avoiding damage to a user by punching debris by wind energy, comprising a grip (1), characterized in that: the outer side of the handle (1) is movably provided with a connecting bush (2), one end of the connecting bush (2) far away from the handle (1) is movably connected with a connecting spring (3), one end of the connecting spring (3) far away from the connecting bush (2) is movably connected with an installation block (4), the outer side of the installation block (4) is movably connected with an installation component (5), the outer side of the installation component (5) is movably connected with a cleaning plate (6), a cleaning fan (7) is arranged inside the cleaning plate (6), one end of the installation block (4) far away from the connecting spring (3) is movably connected with a connecting component (8), the connecting component (8) is movably provided with an installation fan (9), the outer side of the connecting component (8) is movably connected with a butt ring (10), and the outer side of the butt ring (10) is movably connected with a shaft lever (11), the clamping has installation spring (12) between butt ring (10) and axostylus axostyle (10), the left side movable mounting of axostylus axostyle (11) has and accepts board (13), the inboard swing joint activity pivot (14) of accepting board (13), the left side swing joint of activity pivot (14) has actuating lever (15).
2. The apparatus for preventing damage to a user by perforating debris using wind energy as claimed in claim 1, wherein: the left side of the driving rod (15) is movably connected with a punching drill bit (16).
3. The apparatus for preventing damage to a user by perforating debris using wind energy as claimed in claim 1, wherein: the left side of the bearing plate (13) is movably connected with a punching impeller (17).
4. The apparatus for preventing damage to a user by perforating debris using wind energy as claimed in claim 1, wherein: and an abutting spring (18) is clamped at the left side of the abutting circular ring (10) and the right side of the movable rotating shaft (14).
5. The apparatus for preventing damage to a user by perforating debris using wind energy as claimed in claim 4, wherein: the outer side of the abutting spring (18) is movably connected with an abutting switch (19).
6. The apparatus for preventing damage to a user by perforating debris using wind energy as claimed in claim 1, wherein: the movable rotating shaft (14) is circular and is of a rotatable structure.
7. The apparatus for preventing damage to a user by perforating debris using wind energy as claimed in claim 3, wherein: the punching impellers (17) are symmetrically arranged in two groups, are arranged on two sides of the punching drill bit (16) and are not in lap joint contact with the punching drill bit.
8. The apparatus for preventing damage to a user by perforating debris using wind energy as claimed in claim 5, wherein: the two groups of the abutting switches (19) are arranged symmetrically and do not abut against and contact with each other in a normal state; controls the opening and closing of the perforating impeller (17) and the installation fan (9).
CN202010580226.9A 2020-06-23 2020-06-23 Equipment for preventing punching scraps from damaging user through wind energy Withdrawn CN111687951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010580226.9A CN111687951A (en) 2020-06-23 2020-06-23 Equipment for preventing punching scraps from damaging user through wind energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010580226.9A CN111687951A (en) 2020-06-23 2020-06-23 Equipment for preventing punching scraps from damaging user through wind energy

Publications (1)

Publication Number Publication Date
CN111687951A true CN111687951A (en) 2020-09-22

Family

ID=72483431

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010580226.9A Withdrawn CN111687951A (en) 2020-06-23 2020-06-23 Equipment for preventing punching scraps from damaging user through wind energy

Country Status (1)

Country Link
CN (1) CN111687951A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112643801A (en) * 2020-12-11 2021-04-13 海宁市袁花镇春丽太阳能热水器配件厂 Furniture of piece resorption formula heat dissipation equipment that punches

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20301042U1 (en) * 2003-01-24 2003-03-27 Tts Tooltechnic Systems Ag drill
CN202114707U (en) * 2011-06-25 2012-01-18 刘东山 Electric hammer with blowing device
CN102677666A (en) * 2012-05-03 2012-09-19 山东鸿泰建设集团有限公司 Concrete piling process and drilling machine special for same
CN105690333A (en) * 2016-03-11 2016-06-22 无锡建凌电器有限公司 Wall perforating device capable of removing dust
CN107378061A (en) * 2015-12-18 2017-11-24 陈建欢 A kind of method of work of the safe electric drill of fast feed
CN108465844A (en) * 2018-04-16 2018-08-31 南京汇龙五金工具制造有限公司 A kind of portable manual hole making drill
CN108723442A (en) * 2018-07-16 2018-11-02 如皋市汇金电子科技有限公司 A kind of pistol type electric drill
CN208040308U (en) * 2018-01-19 2018-11-02 新疆北新路桥集团股份有限公司 A kind of reaming bit and drilling machine
CN108890897A (en) * 2018-05-21 2018-11-27 江苏沃元精密机械有限公司 A kind of drilling device
CN110714719A (en) * 2018-07-12 2020-01-21 北京中联勘工程技术有限责任公司 A soil property drilling machine for engineering survey
CN210231633U (en) * 2019-07-20 2020-04-03 上海一建安装工程有限公司 Hand-held electric drill
KR20200069401A (en) * 2018-12-06 2020-06-17 노희천 Dust collector device for drill

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20301042U1 (en) * 2003-01-24 2003-03-27 Tts Tooltechnic Systems Ag drill
CN202114707U (en) * 2011-06-25 2012-01-18 刘东山 Electric hammer with blowing device
CN102677666A (en) * 2012-05-03 2012-09-19 山东鸿泰建设集团有限公司 Concrete piling process and drilling machine special for same
CN107378061A (en) * 2015-12-18 2017-11-24 陈建欢 A kind of method of work of the safe electric drill of fast feed
CN105690333A (en) * 2016-03-11 2016-06-22 无锡建凌电器有限公司 Wall perforating device capable of removing dust
CN208040308U (en) * 2018-01-19 2018-11-02 新疆北新路桥集团股份有限公司 A kind of reaming bit and drilling machine
CN108465844A (en) * 2018-04-16 2018-08-31 南京汇龙五金工具制造有限公司 A kind of portable manual hole making drill
CN108890897A (en) * 2018-05-21 2018-11-27 江苏沃元精密机械有限公司 A kind of drilling device
CN110714719A (en) * 2018-07-12 2020-01-21 北京中联勘工程技术有限责任公司 A soil property drilling machine for engineering survey
CN108723442A (en) * 2018-07-16 2018-11-02 如皋市汇金电子科技有限公司 A kind of pistol type electric drill
KR20200069401A (en) * 2018-12-06 2020-06-17 노희천 Dust collector device for drill
CN210231633U (en) * 2019-07-20 2020-04-03 上海一建安装工程有限公司 Hand-held electric drill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112643801A (en) * 2020-12-11 2021-04-13 海宁市袁花镇春丽太阳能热水器配件厂 Furniture of piece resorption formula heat dissipation equipment that punches

Similar Documents

Publication Publication Date Title
ATE530277T1 (en) DRILLING TOOL WITH DUST COLLECTOR
CN201669441U (en) Dust-absorption impact electric drill
JPH04226850A (en) Drill/chisel device having sucking device
EP3311951A1 (en) Control method and dust extraction module
CN210758494U (en) Novel electric hand drill
CN111687951A (en) Equipment for preventing punching scraps from damaging user through wind energy
CN112207843A (en) Detachable manipulator with dust removal mechanism
CN110369756A (en) A kind of sheet fabrication drilling machine of automatic collection scrap
CN116476178A (en) Furniture engraving device with hollowed-out supporting function and use method thereof
KR20090115395A (en) A dust collector and perforator using drill machine
CN213052834U (en) Kitchen cabinet plate drilling device with dust removal mechanism
CN218838234U (en) Punching dust suction device
CN215549871U (en) Dustless drilling equipment is used in indoor building construction
CN217802543U (en) Drilling equipment for interior decoration
CN214925881U (en) Wall perforating device with dust absorption function
CN219806309U (en) Building wall perforating device with dust removal effect
CN112476614A (en) LED lamp shade drilling equipment of stable centre gripping
CN215468289U (en) Electric hammer puncher
CN216372817U (en) Wall drilling equipment for interior decoration
CN214321929U (en) Punching device
JP4992624B2 (en) Electric tool
CN108381789A (en) A kind of punch device convenient for decorative panel for building
CN219336034U (en) Automatic trompil ash removal device
CN214187898U (en) Auxiliary device for drilling of outer wall of air conditioner pipeline
JPH11291108A (en) Dust collector for drilling machine

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: Room 925, building 3, Xiaoshan Henglong Plaza, Beigan street, Xiaoshan District, Hangzhou, Zhejiang 311200

Applicant after: Hangzhou channeling Technology Co.,Ltd.

Address before: 311600 room 203-30, unit 1, building 2, no.89-105, Zhijiang Road, xiaya Town, Jiande City, Hangzhou City, Zhejiang Province

Applicant before: Hangzhou channeling Technology Co.,Ltd.

CB02 Change of applicant information
WW01 Invention patent application withdrawn after publication

Application publication date: 20200922

WW01 Invention patent application withdrawn after publication