CN110142434B - High-efficient glass rechargeable electric drill with preliminary treatment - Google Patents
High-efficient glass rechargeable electric drill with preliminary treatment Download PDFInfo
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- CN110142434B CN110142434B CN201910423605.4A CN201910423605A CN110142434B CN 110142434 B CN110142434 B CN 110142434B CN 201910423605 A CN201910423605 A CN 201910423605A CN 110142434 B CN110142434 B CN 110142434B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
Abstract
The invention discloses a high-efficiency glass rechargeable electric drill with pretreatment, which structurally comprises a handle, a machine body, an electric drill chuck, a drill bit and a pretreatment device, wherein the machine body is connected with the handle to form an integrated structure, the machine body is provided with the electric drill chuck, the drill bit is arranged on the electric drill chuck, the electric drill chuck is hinged with the pretreatment device, the pretreatment device consists of a moving rod, a nut, an adjusting screw rod, a blade and a limiting block, one end of the moving rod is connected to the side surface of the electric drill chuck through a hinge, the other end of the moving rod is welded with the nut, the nut is in threaded connection with the adjusting screw rod, and the adjusting screw rod is perpendicular to the moving rod: can cut in advance the position of punching in advance through preprocessing device, avoid punching the condition of breaking and take place, can improve the cutting precision through the location extension board, prevent that manual position from taking place the error, report to the police when can reaching the predetermined value to depth of cut through the relative rotation of clog, avoid frequently to stop observing, improve work efficiency.
Description
Technical Field
The invention relates to the field of electric drills, in particular to a high-efficiency glass rechargeable electric drill with pretreatment.
Background
The electric drill can drill holes through rotating tools, and glass, wood, metal and the like are frequently drilled in the using process of the electric drill.
Because glass, ceramic tile because be fragile article, will have the crack when drilling carelessly a little, generally need carry out precutting to the circle of punching earlier, current precutting adopts the form of slope drill bit to go on, and the operation has certain degree of difficulty, and the hole circularity that leads to punching of shifting easily is not beautiful, and precutting need stop constantly at the during operation and observe the degree of depth of cutting, influences the working process, reduces work efficiency.
Disclosure of Invention
The invention mainly aims to overcome the defects of the prior art and provide a high-efficiency glass rechargeable electric drill with pretreatment.
The invention is realized by adopting the following technical scheme: the utility model provides a rechargeable electric drill of high-efficient glass with preliminary treatment, its structure includes handle, fuselage, electric drill chuck, drill bit, preprocessing device, the fuselage is connected with the handle and becomes integral structure, the electric drill chuck is installed to the fuselage, install the drill bit on the electric drill chuck, the electric drill chuck articulates there is preprocessing device, preprocessing device comprises carriage release lever, nut, adjusting screw, blade, stopper, hinged joint is passed through in electric drill chuck side to the one end of carriage release lever, the welding of the carriage release lever other end has the nut, nut and adjusting screw threaded connection, adjusting screw and carriage release lever mutually perpendicular, the blade is equipped with the fixed slot, the blade is connected with the carriage release lever through the fixed slot, the stopper is connected in carriage release lever articulated one end.
Preferably, the adjusting screw rod comprises an inner screw rod, an outer screw rod, a limiting head and fixing rods, wherein the limiting head is connected to one end, arranged in the fixing groove, of the outer screw rod, a threaded hole is formed in the outer screw rod, the inner screw rod is arranged in the outer screw rod, and 6 fixing rods are arranged at the position, close to the limiting head, of the inner screw rod.
Preferably, the fixed rod is arranged along the radial direction of the outward extension of the circle center of the cross section of the outer screw rod, one end of the inner screw rod, which is positioned inside the outer screw rod, is conical, the inner end of the fixed rod is connected with the inner screw rod, and the outer end of the fixed rod is connected with the fixed groove.
The positioning device comprises a positioning support plate, a telescopic rod, a stopper and a guide column, one end of the telescopic rod is arranged on the guide column, the other end of the telescopic rod is vertically connected with the positioning support plate, the stopper is arranged at the tail of the guide column, the telescopic rod is provided with teeth, and the stopper is meshed with the telescopic rod.
Preferably, the stopper consists of an insert, a bearing, a spacer, a touch plate and a fixed shaft, the insert is connected with the fixed shaft, the fixed shaft is matched with the bearing, the spacer is arranged on the bearing, and the touch plate is connected to the fixed shaft.
Preferably, the bearing comprises an outer gear ring, an inner gear ring and balls, the inner gear ring is arranged in the outer gear ring and movably connected with the outer gear ring through the balls, and the outer gear ring is meshed with the telescopic rod.
Preferably, the spacer device comprises a spring rod and a movable plate, the movable end of the spring rod is connected with the movable plate, the movable plate is connected to the outer gear ring, the fixed end of the spring rod is welded with the inner gear ring, and the touch plate is arranged between the spring rods.
Preferably, the cross section of the fixed shaft is in a gear shape, and the fixed shaft is embedded with the inner gear ring.
Preferably, the touch plate is provided with a sensor and is electrically connected with the machine body.
Preferably, the thickness of the inner gear ring is larger than that of the outer gear ring.
Preferably, the side face of the electric drill chuck is provided with a clamp.
Preferably, the spring rod is arc-shaped, and the circle center of the arc is consistent with that of the bearing.
Advantageous effects
When the invention is used, a handle is held by hand, the moving rod is clamped and fixed by the clamp, the distance between the moving rod and a chuck of the electric drill can be limited by the limiting block, the moving rod and the drill bit are kept horizontal, then the distance between the blade can be adjusted by the adjusting screw rod, the blade is close to the drill bit, because the adjusting screw rod needs to rotate during adjustment, the blade can not move when the adjusting screw rod rotates by the clearance fit between the limiting head and the fixed groove, and whether the adjusting screw rod and the blade are fixed can be determined by the position fit between the inner screw rod and the fixed rod, when the conical head of the inner screw rod moves outwards, the fixed rod loses the supporting force and can not fix the blade, when the inner screw rod moves inwards to push the fixed rod outwards, the fixed rod can be pushed against the fixed groove of the blade to fix the blade, the positioning support plate is placed on glass to enable the drill bit to be vertical to the glass, and, and then a stopper is inserted into the guide post to enable the telescopic rod to be meshed with the bearing, the electric drill is started, the electric drill chuck rotates to drive the blade to rotate to cut, the guide post moves downwards along with the cutting depth to drive the outer gear ring to roll on the telescopic rod, the inner gear ring is fixedly embedded with the fixed shaft, so that the outer gear ring rotates to drive the movable plate to press the touch plate to alarm the touch sensor, the cutting is stopped, the distance between the touch plate and the movable plate can be adjusted by moving the embedded position between the inner gear ring and the fixed shaft, the cutting depth is properly adjusted according to the thickness of the glass, the pretreatment device moves upwards after the precutting is finished, and holes are punched through the drill bit.
Compared with the prior art, the invention has the beneficial effects that:
1. the pre-punched position can be pre-cut through the pre-processing device, so that the situation of punching and cracking is avoided;
2. the cutting blade can be kept vertical to the glass through the positioning support plate, and the electric drill chuck drives the blade to automatically rotate, so that the cutting accuracy can be improved, and the manual positioning error can be prevented;
3. the blade can be conveniently adjusted through the matching of the inner screw rod and the outer screw rod, the adjusting device is suitable for round holes with different diameters, the blade can be ensured to be fixed during adjustment, and the blade is fixed during stopping;
4. the cutting depth can be alarmed when reaching a preset value through the relative rotation of the stop dog, so that the frequency stop observation is avoided, and the working efficiency is improved;
5. the cutting depth alarm distance can be adjusted through the fit angle between the fixed shaft and the inner gear ring, so that the cutting depth can be automatically adjusted according to the thickness of the glass.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural diagram of a high-efficiency glass rechargeable electric drill with pretreatment according to the present invention.
FIG. 2 is a schematic view of the pretreatment apparatus of the present invention.
FIG. 3 is a cross-sectional view of the adjusting screw of the present invention.
Fig. 4 is a sectional view taken along line a-a of fig. 3.
FIG. 5 is a schematic view of the stopper structure of the present invention.
In the figure: the electric drill comprises a handle 1, a body 2, an electric drill chuck 3, a drill bit 4, a preprocessing device 5, a moving rod 50, a nut 51, an adjusting screw rod 52, a blade 53, a fixing groove 54, a limiting block 55, an inner screw rod a, an outer screw rod b, a limiting head c, a fixing rod d, a positioning support plate 6, a telescopic rod 7, a stopper 8, a guide post 9, an insert 80, a bearing 81, a spacing device 82, a touch plate 83, a fixed shaft 84, an outer gear ring 810, an inner gear ring 811, a ball 812, a spring rod 820 and a moving plate 821.
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. 1-5, the present invention provides a technical solution of a high-efficiency glass rechargeable electric drill with pretreatment: its structure includes handle 1, fuselage 2, electric drill chuck 3, drill bit 4, preprocessing device 5, fuselage 2 is connected and becomes the integral structure with handle 1, electric drill chuck 3 is installed to fuselage 2, install drill bit 4 on the electric drill chuck 3, electric drill chuck 3 articulates there is preprocessing device 5, preprocessing device 5 comprises carriage release lever 50, nut 51, adjusting screw 52, blade 53, stopper 55, hinged joint is passed through in electric drill chuck 3 side in the one end of carriage release lever 50, the welding of the 50 other end of carriage release lever has nut 51, nut 51 and adjusting screw 52 threaded connection, adjusting screw 52 and carriage release lever 50 mutually perpendicular, blade 53 is equipped with fixed slot 54, blade 53 is connected with carriage release lever 50 through fixed slot 54, stopper 55 is connected in the articulated one end of carriage release lever 50.
The adjusting screw 52 is composed of an inner screw a, an outer screw b, a limiting head c and a fixing rod d, the limiting head c is connected to one end of the outer screw b, which is arranged in the fixing groove 54, a threaded hole is formed in the outer screw b, the inner screw a is arranged in the outer screw b, 6 fixing rods d are arranged at the position, close to the limiting head c, of the inner screw a, and the self-locking effect can be achieved through threaded connection.
The fixing rod d is arranged along the radial direction of the outer extension of the circle center of the cross section of the outer screw b, one end, located inside the outer screw b, of the inner screw a is conical, the inner end of the fixing rod d is connected with the inner screw a, the outer end of the fixing rod d is connected with the fixing groove 54, and the outer screw b can be used for fixing the blade 53 by pushing the fixing rod d outwards.
The glass cutting device is characterized by further comprising a positioning device, wherein the positioning device comprises a positioning support plate 6, a telescopic rod 7, a stopper 8 and a guide column 9, one end of the telescopic rod 7 is arranged on the guide column 9, the other end of the telescopic rod is vertically connected with the positioning support plate 6, the stopper 8 is installed at the tail of the guide column 9, the telescopic rod 7 is provided with teeth, the stopper 8 is meshed with the telescopic rod 7, and the drill bit 4 and the blade 53 can be kept perpendicular to glass through the positioning device.
The stopper 8 comprises an insert 80, a bearing 81, a spacing device 82, a touch plate 83 and a fixed shaft 84, wherein the insert 80 is connected with the fixed shaft 84, the fixed shaft 84 is matched with the bearing 81, the bearing 81 is provided with the spacing device 82, the touch plate 83 is connected with the fixed shaft 84, and the bearing 81 can provide a relative rotation basis.
The bearing 81 is composed of an outer gear ring 810, an inner gear ring 811 and balls 812, the inner gear ring 811 is arranged inside the outer gear ring 810 and movably connected with the outer gear ring 810 through the balls 812, and the outer gear ring 810 is meshed with the telescopic rod 7 and can rotate in a meshed manner according to the cutting depth, so that the outer gear ring 810 rotates.
The spacer 82 is composed of a spring rod 820 and a moving plate 821, the moving end of the spring rod 820 is connected with the moving plate 821, the moving plate 821 is connected with the outer gear ring 810, the fixed end of the spring rod 820 is welded with the inner gear ring 811, and the contact plate 83 is arranged between the spring rods 820, so that the moving plate 821 can rotate along with the outer gear ring 810, and the spring rod 820 can automatically reset.
The cross section of the fixing shaft 84 is in a gear shape, and the fixing shaft 84 is embedded with the annular gear 811, so that relative rotation of the fixing shaft 84 and the annular gear is avoided, and the fixing effect is improved.
The touch plate 83 is provided with a sensor and is electrically connected with the machine body 2, so that the alarm connection is convenient.
The thickness of inner gear ring 811 is greater than that of outer gear ring 810, which facilitates connection of inner gear ring 811 and spring bar 820.
The side of the electric drill chuck 3 is provided with a clamp which can fix the moving rod 50.
The spring lever 820 is arc-shaped, and the center of the arc is consistent with the bearing 81, so that the telescopic track is consistent with the outer gear ring 810.
When in use, the handle 1 is held by hand, the moving rod 50 is clamped and fixed by the clamp, the distance between the moving rod 50 and the drill chuck 3 can be limited by the limiting block 55, the moving rod 50 and the drill bit 4 are kept horizontal, then the distance between the blade 53 can be adjusted by the adjusting screw 52, the blade 53 is close to the drill bit 4, the adjusting screw 52 needs to rotate during adjustment, the blade 53 can be fixed when the adjusting screw 52 rotates by the clearance fit of the limiting head c and the fixed groove 54, and whether the adjusting screw 52 and the blade 53 are fixed can be determined by the position fit of the internal screw a and the fixed rod d, when the conical head of the internal screw a moves outwards, the fixed rod d loses the supporting force and cannot fix the blade 53, when the internal screw a moves inwards to push the fixed rod d outwards, the fixed rod d can be pushed against the fixed groove 54 of the blade 53 to fix the blade, the positioning support plate 6 is placed on glass, and the drill bit 4 can be perpendicular to the glass, the blade 53 is abutted against the position of the glass pre-punched hole, then the stopper 8 is inserted into the guide post 9 to enable the telescopic rod 7 to be meshed with the bearing 81, the electric drill is started, the electric drill chuck 3 rotates to drive the blade 53 to rotate for cutting, the guide post 9 moves downwards along with the cutting depth to drive the outer gear ring 810 to roll on the telescopic rod 7, the inner gear ring 811 is fixedly embedded with the fixed shaft 84, the outer gear ring 810 drives the movable plate 821 to press against the touch plate 83 when rotating, so that the touch sensor is triggered to give an alarm, the cutting is stopped, the distance between the touch plate 83 and the movable plate 821 can be adjusted through the embedded position movement between the inner gear ring 811 and the fixed rod d, the cutting depth is properly adjusted according to the thickness of the glass, the pre-processing device is moved upwards after the pre-.
Compared with the prior art, the invention has the technical progress that: the pre-punched position can be pre-cut through the pre-processing device, so that the situation of punching and cracking is avoided; the cutting blade can be kept vertical to the glass through the positioning support plate, and the electric drill chuck drives the blade to automatically rotate, so that the cutting accuracy can be improved, and the manual positioning error can be prevented; the blade can be conveniently adjusted through the matching of the inner screw rod and the outer screw rod, the adjusting device is suitable for round holes with different diameters, the blade can be ensured to be fixed during adjustment, and the blade is fixed during stopping; the cutting depth can be alarmed when reaching a preset value through the relative rotation of the stop dog, so that the frequency stop observation is avoided, and the working efficiency is improved; the cutting depth alarm distance can be adjusted through the fit angle between the fixed shaft and the inner gear ring, so that the cutting depth can be automatically adjusted according to the thickness of the glass.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a rechargeable electric drill of high-efficient glass with preliminary treatment, its structure includes handle (1), fuselage (2), electric drill chuck (3), drill bit (4), preprocessing device (5) and positioner, fuselage (2) are connected and become the integral structure with handle (1), electric drill chuck (3) are installed in fuselage (2), install drill bit (4) on electric drill chuck (3), its characterized in that: the electric drill chuck (3) is hinged with a pretreatment device (5);
the electric drill chuck is characterized in that the preprocessing device (5) comprises a moving rod (50), a nut (51), an adjusting screw (52), a blade (53) and a limiting block (55), one end of the moving rod (50) is connected to the side face of the electric drill chuck (3) through a hinge, the nut (51) is welded to the other end of the moving rod (50), the nut (51) is in threaded connection with the adjusting screw (52), the adjusting screw (52) is perpendicular to the moving rod (50), a fixing groove (54) is formed in the blade (53), the blade (53) is connected with the moving rod (50) through the fixing groove (54), and the limiting block (55) is connected to one end, hinged to the moving rod (50);
the adjusting screw rod (52) consists of an inner screw rod (a), an outer screw rod (b), a limiting head (c) and fixing rods (d), one end of the outer screw rod (b) arranged in the fixing groove (54) is connected with the limiting head (c), a threaded hole is formed in the outer screw rod (b), the inner screw rod (a) is arranged in the outer screw rod (b), and 6 fixing rods (d) are arranged at the position, close to the limiting head (c), of the inner screw rod (a);
the positioning device comprises a positioning support plate (6), a telescopic rod (7), a stopper (8) and a guide post (9), one end of the telescopic rod (7) is arranged on the guide post (9), the other end of the telescopic rod is vertically connected with the positioning support plate (6), the stopper (8) is arranged at the tail of the guide post (9), the telescopic rod (7) is provided with teeth, and the stopper (8) is meshed with the telescopic rod (7).
2. The high-efficiency rechargeable glass electric drill with pretreatment according to claim 1, wherein: the fixing rod (d) is arranged along the radial direction of the outward extension of the circle center of the cross section of the outer screw rod (b), one end, located inside the outer screw rod (b), of the inner screw rod (a) is conical, the inner end of the fixing rod (d) is connected with the inner screw rod (a), and the outer end of the fixing rod is connected with the fixing groove (54).
3. The high-efficiency rechargeable glass electric drill with pretreatment according to claim 1, wherein: the retainer (8) is composed of an insert (80), a bearing (81), a spacing device (82), a touch plate (83) and a fixed shaft (84), the insert (80) is connected with the fixed shaft (84), the fixed shaft (84) is matched with the bearing (81), the spacing device (82) is arranged on the bearing (81), and the touch plate (83) is connected to the fixed shaft (84).
4. A high efficiency rechargeable glass electric drill with preconditioning according to claim 3 wherein: the bearing (81) is composed of an outer gear ring (810), an inner gear ring (811) and balls (812), the inner gear ring (811) is arranged inside the outer gear ring (810) and movably connected with the outer gear ring (810) through the balls (812), and the outer gear ring (810) is meshed with the telescopic rod (7).
5. A high efficiency rechargeable glass electric drill with preconditioning according to claim 3 wherein: the spacing device (82) comprises a spring rod (820) and a moving plate (821), the moving end of the spring rod (820) is connected with the moving plate (821), the moving plate (821) is connected to an outer gear ring (810), the fixed end of the spring rod (820) is welded with an inner gear ring (811), and the touch plate (83) is arranged between the spring rods (820).
6. A high efficiency rechargeable glass electric drill with preconditioning according to claim 3 wherein: the cross section of the fixed shaft (84) is in a gear shape, and the fixed shaft (84) is embedded with the annular gear (811).
7. A high efficiency rechargeable glass electric drill with preconditioning according to claim 3 wherein: the touch plate (83) is provided with a sensor and is electrically connected with the machine body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910423605.4A CN110142434B (en) | 2019-05-21 | 2019-05-21 | High-efficient glass rechargeable electric drill with preliminary treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910423605.4A CN110142434B (en) | 2019-05-21 | 2019-05-21 | High-efficient glass rechargeable electric drill with preliminary treatment |
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| Publication Number | Publication Date |
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| CN110142434A CN110142434A (en) | 2019-08-20 |
| CN110142434B true CN110142434B (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910423605.4A Active CN110142434B (en) | 2019-05-21 | 2019-05-21 | High-efficient glass rechargeable electric drill with preliminary treatment |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111823192B (en) * | 2020-07-29 | 2023-02-03 | 工汇(北京)科技有限公司 | Electric keel clamp |
| CN112873441B (en) * | 2021-01-23 | 2022-05-03 | 广西贵港市旺达木业有限公司 | Processing mechanism of plywood |
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| DE3126245C2 (en) * | 1981-07-03 | 1993-10-07 | Bosch Gmbh Robert | Profile bar for use as a drilling depth stop on hand machine tools |
| CN102574285A (en) * | 2010-04-16 | 2012-07-11 | 丰田自动车株式会社 | Rotation restricting device, robot articulation, and walking aid apparatus |
| CN204603374U (en) * | 2013-12-19 | 2015-09-02 | 米沃奇电动工具公司 | Hole machined assembly and adjustable hole machined system |
| CN204661541U (en) * | 2015-04-13 | 2015-09-23 | 富阳天洋装饰设计有限公司 | A kind of rotary cutter for incising circular glass surface |
| CN205183854U (en) * | 2015-09-18 | 2016-04-27 | 苏州宝时得电动工具有限公司 | Depthkeeping device and have electric tool of this kind of depthkeeping device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8894654B2 (en) * | 2010-03-31 | 2014-11-25 | Smart Medical Devices, Inc. | Depth controllable and measurable medical driver devices and methods of use |
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2019
- 2019-05-21 CN CN201910423605.4A patent/CN110142434B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3126245C2 (en) * | 1981-07-03 | 1993-10-07 | Bosch Gmbh Robert | Profile bar for use as a drilling depth stop on hand machine tools |
| CN102574285A (en) * | 2010-04-16 | 2012-07-11 | 丰田自动车株式会社 | Rotation restricting device, robot articulation, and walking aid apparatus |
| CN204603374U (en) * | 2013-12-19 | 2015-09-02 | 米沃奇电动工具公司 | Hole machined assembly and adjustable hole machined system |
| CN204661541U (en) * | 2015-04-13 | 2015-09-23 | 富阳天洋装饰设计有限公司 | A kind of rotary cutter for incising circular glass surface |
| CN205183854U (en) * | 2015-09-18 | 2016-04-27 | 苏州宝时得电动工具有限公司 | Depthkeeping device and have electric tool of this kind of depthkeeping device |
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| CN110142434A (en) | 2019-08-20 |
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Effective date of registration: 20210322 Address after: 321200 Hardware Machinery Industrial Park, Wuyi County, Jinhua City, Zhejiang Province Applicant after: JINHUA OUDELI TOOL MANUFACTURING Co.,Ltd. Address before: 315700 62 households in group 8, Pumen village, Xianxiang Town, Xiangshan County, Ningbo City, Zhejiang Province Applicant before: Yu Youhang |
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