CN106078622B - Beater mechanism in electric impact drill - Google Patents
Beater mechanism in electric impact drill Download PDFInfo
- Publication number
- CN106078622B CN106078622B CN201610677424.0A CN201610677424A CN106078622B CN 106078622 B CN106078622 B CN 106078622B CN 201610677424 A CN201610677424 A CN 201610677424A CN 106078622 B CN106078622 B CN 106078622B
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- impact
- block
- main shaft
- adjusting block
- gear
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses the beater mechanism in electric impact drill, including：Determine impact block, determine impact block to be placed on the outside of main shaft, fastening is set with dynamic impact block on the main shaft determined in front of impact block, fluctuation groove is respectively equipped on impact block and the opposite both ends of the surface of dynamic impact block are determined, also there are one impact guide pads for empty set on the outside of the main shaft in front of dynamic impact block, there are one impact adjusting blocks for empty set on the outside of the main shaft in front of impact guide pad, at least provided with a spacing breach on the front end face of impact guide pad, impact adjusting block rear end face on be equipped with can respectively with the one-to-one positive stop lug boss of each spacing breach, resetting spring is set on the outside of main shaft between impact adjusting block and gear-box, the torsion cup of gear-box front end outer side can be set in by being additionally provided on housing, impact adjusting block is installed in torsion cup, torsion cup enable with impact adjusting block rotation.The structure of above-mentioned beater mechanism is simpler so that impacts the gear shift operation enhanced convenience of adjusting block.
Description
Technical field
The present invention relates to electric impact drills, and in particular to the beater mechanism in electric impact drill.
Background technology
Usually will have the function of " to bore " and the electric drill of " impact drill " is known as electric impact drill, " impact drill " function refers to：Drill bit
The hole bored can be impacted again while rotary drilling.Electric impact drill mainly includes：Housing, the master being set in housing
The rotary power of power unit can be passed to the speed reducing mechanism of main shaft by axis, the power unit being set in housing,
Main shaft can be made to generate the beater mechanism of axial impact using rotary power.When needing drilling, installed on the output terminal of main shaft
Drill bit can carry out boring work.Power unit mainly includes：The motor being set in housing, is installed on motor output shaft
Motor gear.Speed reducing mechanism mainly includes：The gear-box being set in housing, main shaft are arranged in gear by bearing
In case, be additionally provided in gear-box can driving spindle rotation planetary transmission, the motor gear on motor is located at
It is mutually driven between each planet pinion in planetary transmission and with them, the rotary power of motor output can pass through
Planetary transmission passes to main shaft.Beater mechanism mainly includes：Determine impact block, determine impact block and be fixedly installed on gear-box
In, and determine impact block and be placed on the outside of main shaft, it is fastened on the main shaft determined in front of impact block and is set with a dynamic impact block,
Determine to be respectively arranged with fluctuation groove in impact block and the opposite both ends of the surface of dynamic impact block, main shaft can be with dynamic impact after being oppressed
Block moves inward, until the fluctuation groove face on dynamic impact block leans with the fluctuation groove face determined on impact block, in dynamic impact
Also there are one impact guide pads for empty set on the outside of main shaft in front of block, impact guide pad to be fixed on gear-box, in impact guide pad
There are one impact adjusting blocks for empty set on the outside of the main shaft in front, and impact adjusting block can be pushed up when main shaft is moved inward by compressing
It pushes away, several limited posts is additionally provided on impact guide pad, limited post is located between impact guide pad and impact adjusting block, is rushing
Hit on adjusting block be provided with it is several can respectively with each limited post front end one by one against positive stop lug boss, when rotary impact adjusting block
When so that each positive stop lug boss is resisted against one by one on each limited post respectively, impact guide pad can stop impact adjusting block,
So that impact adjusting block can not move inward, under this state by the main shaft oppressed can by impact adjusting block blocking and nothing
Method moves inward, and moving impact block at this time and determining impact block would not also lean, so as to which main shaft also can not just generate axial impact,
Electric impact drill can only realize the function of " brill " under this state, and impact adjusting block is claimed to be in " brill " shelves at this time；When rotary impact tune
When locking nub makes each positive stop lug boss not lean with each limited post, under this state by the main shaft oppressed just can pushing tow
Impact adjusting block moves inward together, leans, then the rotation with main shaft until moving impact block and determining impact block, main shaft is with regard to energy
Axial impact is generated, electric impact drill can be achieved with the function of " impact drill " under this state, and impact adjusting block is claimed to be in " punching at this time
Hit brill " shelves, in impact adjusting block and impact on the outside of the main shaft between guide pad that empty set is there are one resetting spring, after resetting spring
End leans with impact guide pad, and front end and the impact adjusting block of resetting spring lean, and resetting spring can be impacted by pushing tow
Adjusting block makes main shaft be reset to the position where when not suffering oppression, and is additionally provided with reduction torsion spring in the housing, and the one of reduction torsion spring
End is mutually fixed with housing, and the other end and the impact adjusting block of reduction torsion spring are mutually fixed, and reduction torsion spring can keep impact adjusting block
In on " brill " shelves, the plectrum that can stir impact adjusting block rotation is additionally provided on impact adjusting block, stir plectrum and is overcome multiple
Impact adjusting block can be made to rotate to " impact drill " shelves after the torsion of position torsional spring, plectrum can be blocked by, which being additionally provided on housing, makes punching
Hit the gear piece that adjusting block is held on " impact drill " shelves.
The shortcomings that beater mechanism in above-mentioned electric impact drill is：First, the installation of reduction torsion spring is relatively difficult, thus can be significantly
Influence the packaging efficiency of electric impact drill；2nd, the gear-change operation carried out by reduction torsion spring, plectrum, gear piece to impact adjusting block
It is comparatively laborious, and the structure of beater mechanism is become more complicated.
Invention content
The technical problems to be solved by the invention are：It will provide in a kind of simple in structure, easy electric impact drill of operation
Beater mechanism.
To solve the above-mentioned problems, the technical solution adopted in the present invention is：Beater mechanism in electric impact drill, including：
Determine impact block, determine impact block and be fixedly installed in gear-box, and determine impact block and be placed on the outside of main shaft, determining in front of impact block
Main shaft on fastening be set with a dynamic impact block, be respectively arranged with wave on impact block and the opposite both ends of the surface of dynamic impact block are determined
Moving teeth line, main shaft can move inward after being oppressed with dynamic impact block, until fluctuation groove face and Ding Chong on dynamic impact block
The fluctuation groove face hit on block leans；Its main feature is that：Also empty set to be led there are one impacting on the outside of the main shaft in front of dynamic impact block
To block, impact guide pad is fixedly installed in the front end of gear-box, and there are one rush for empty set on the outside of the main shaft in front of impact guide pad
Adjusting block is hit, pushing tow can be carried out to impact adjusting block when main shaft is moved inward by compressing, in the front end of impact guide pad at least
There are one spacing breach for setting, are provided with and can be limited correspondingly with each spacing breach respectively in the rear end of impact adjusting block
Boss is resisted against impact and is oriented to when rotary impact adjusting block makes each positive stop lug boss be staggered with corresponding spacing breach
When on the front end face of block, impact guide pad can stop impact adjusting block so that impact adjusting block can not move inward, this
It can not be moved inward by the blocking of impact adjusting block by the main shaft oppressed under kind state, move impact block and Ding Chong at this time
Hitting block can not just lean, and so as to which main shaft can not just generate axial impact, electric impact drill can only be realized " brill " under this state
Function claims impact adjusting block to be in " brill " shelves at this time；When rotary impact adjusting block enables each positive stop lug boss to be adjusted with impact
When block is moved inward and is inserted into corresponding spacing breach, by the main shaft oppressed, just energy pushing tow punching under this state
It hits adjusting block to move inward together, lean, then the rotation with main shaft until moving impact block and determining impact block, main shaft can just produce
Raw axial impact, electric impact drill can realize the function of " impact drill " under this state, and impact adjusting block is claimed to be in " impact at this time
Bore " shelves, there are one resetting springs for empty set on the outside of the main shaft impacted between adjusting block and gear-box, and the rear end of resetting spring passes through
It impacts guide pad and the bearing with being used to support main shaft in gear-box leans, the front end of resetting spring and impact adjusting block offset
It leans on, resetting spring can impact the position that adjusting block is reset to main shaft where when not suffering oppression by pushing tow, in electric impact drill
It is also set up on housing there are one the torsion cup that can be set in gear-box front end outer side, and torsion cup can be in gear-box front end outer side
Rotation is carried out, torsion cup can be carried out circumferentially positioned positioning apparatus for circumferential direction by being additionally provided between torsion cup and gear-box,
The bottom of torsion cup is also set up there are one the through-hole that main shaft can be allowed to pass through and main shaft pushing tow is not interfered to impact adjusting block, and impact is adjusted
Block is installed in torsion cup so that rotary torsion cup can together be rotated with impact adjusting block, so as to which rotary torsion cup can just come
The gear residing for impact adjusting block is adjusted, the mounting structure for impacting adjusting block and torsion cup is：In the outer edge of impact adjusting block
On at least provided with two installation gaps, being provided on the bottom of torsion cup can be one-to-one with each installation gap respectively
Installation base, after each installation base is inserted into corresponding installation gap, impact adjusting block just can be with torsion cup one
Play rotation.
Further, the beater mechanism in aforementioned electric impact drill, wherein：The structure of positioning apparatus for circumferential direction is：In torsion
Uniform intervals, which are circumferentially gone back, on the madial wall of cup is provided with several positioning grooves, it is removable on the lateral wall of gear-box
The installation of formula is unloaded there are one positioning plate, on positioning plate setting there are one can respectively with the matched chuck of each positioning groove,
Torsion cup can be carried out after chuck is caught in some positioning groove circumferentially positioned.
Further, the beater mechanism in aforementioned electric impact drill, wherein：Positioning plate is detachable with gear-box lateral wall
Formula mounting structure is：A positioning crimping is respectively arranged at the both ends of positioning plate, on gear-box lateral wall there are two settings
The one-to-one locating grooves of crimping can be positioned with two respectively, after two positioning crimpings are respectively clamped into corresponding locating groove
Positioning plate can be made to be installed on the lateral wall of gear-box.
Further, the beater mechanism in aforementioned electric impact drill, wherein：Impact guide pad and the installation of gear-box front end
Structure is：It is oppositely arranged on the outer edge of impact guide pad there are two locating notch, there are two the settings of the front end of gear-box
It can impact guide pad respectively with two matched positioning convex platforms of locating notch and be resisted against the front end of gear-box and make two positioning
After boss is inserted into respectively in two locating notches, impact guide pad is just fixedly installed in the front end of gear-box.
Advantages of the present invention is：The structure of beater mechanism in electric impact drill of the present invention is simpler so that punching
The gear shift operation more simple and convenient of adjusting block is hit, so as to substantially increase the reliability of beater mechanism.
Description of the drawings
Fig. 1 is the structure diagram of the beater mechanism in electric impact drill of the present invention.
Fig. 2 is the configuration schematic diagram of Fig. 1.
Fig. 3 is the structure diagram of torsion cup in Fig. 1.
Specific embodiment
With reference to specific embodiments and the drawings, the present invention is described in further detail.Clearly to reflect impact
The dependency structure of mechanism does not draw the housing of electric impact drill in attached drawing.
As shown in Figure 1, Figure 2, Figure 3 shows, the beater mechanism in electric impact drill, including：Determine impact block 3, determine the fixation of impact block 3 and set
It is placed in gear-box 2, and determines impact block 3 and be placed in 1 outside of main shaft, fasten and be set on the main shaft 1 for determining 3 front of impact block
One dynamic impact block 31 is respectively arranged with fluctuation groove, main shaft 1 on impact block 3 and the opposite both ends of the surface of dynamic impact block 31 are determined
It can be moved inward after being oppressed with dynamic impact block 31, until the fluctuation groove face on dynamic impact block 31 is with determining on impact block 3
Fluctuation groove face lean；1 outside of main shaft also empty set in dynamic 31 front of impact block there are one impact guide pad 32, lead by impact
The front end of gear-box 2 is fixedly installed in block 32, there are one impact adjustings for the 1 outside empty set of main shaft in 32 front of impact guide pad
Block 33 can carry out pushing tow when main shaft 1 is moved inward by compressing to impact adjusting block 33, and in practical applications, main shaft 1 would generally
Pushing tow is carried out to impact adjusting block 33 by the shaft shoulder 11 being arranged on, the front end of impact guide pad 32 is provided with two limits
Position notch 321, impact adjusting block 33 rear end be provided with can respectively with each 321 one-to-one positive stop lug boss of spacing breach
331, when rotary impact adjusting block 33 makes each positive stop lug boss 331 be staggered with corresponding spacing breach 321 and it is resisted against
When impacting on the front end face of guide pad 32, impact guide pad 32 can stop impact adjusting block 33 so that impact adjusting block
33 can not move inward, and can not can inwardly be moved by the blocking of impact adjusting block 33 by the main shaft 1 oppressed under this state
Dynamic, moving impact block 31 at this time and determining impact block 3 can not just lean, so as to which main shaft 1 can not just generate axial impact, this state
Lower electric impact drill can only realize the function of " brill ", and impact adjusting block 33 is claimed to be in " brill " shelves at this time；When rotary impact adjusting block 33
Each positive stop lug boss 331 is enable to be moved inward and when being inserted into corresponding spacing breach 321 with impact adjusting block 33,
Impact adjusting block 33 under this state with regard to energy pushing tow by the main shaft 1 oppressed to move inward together, until 31 He of dynamic impact block
Determine impact block 3 to lean, then the rotation with main shaft 1, main shaft 1 just can generate axial impact, electric impact drill energy under this state
Realize the function of " impact drill ", impact adjusting block 33 claimed be in " impact drill " shelves at this time, impact adjusting block 33 and gear-box 2 it
Between 1 outside empty set of main shaft there are one resetting spring 34, the rear end of resetting spring 34 pass through impact guide pad 32 and with gear-box 2
In be used to support the bearing 35 of main shaft 1 and lean, the front end of resetting spring 34 and impact adjusting block 33 lean, resetting spring 34
The position that adjusting block 33 is reset to main shaft 1 where when not suffering oppression can be impacted by pushing tow, on the housing of electric impact drill also
Setting is there are one the torsion cup 4 that can be set in 2 front end outer side of gear-box, and torsion cup 4 can be carried out in 2 front end outer side of gear-box
Rotation, torsion cup 4 can be carried out circumferentially positioned positioning apparatus for circumferential direction by being additionally provided between torsion cup 4 and gear-box 2, turned round
The bottom of power cup 4 is also set up there are one the through-hole 41 that main shaft 1 can be allowed to pass through and 1 pushing tow of main shaft is not interfered to impact adjusting block 33, is rushed
It hits adjusting block 33 to be installed in torsion cup 4 so that rotary torsion cup 4 can together be rotated with impact adjusting block 33, so as to rotate
Torsion cup 4 just can be to adjust the gear residing for impact adjusting block 33, and impacting adjusting block 33 and the mounting structure of torsion cup 4 is：
It impacts on the outer edge of adjusting block 33 and is oppositely arranged there are two installation gap 332, the energy there are two settings on the bottom of torsion cup 4
Respectively with two installation gaps, 332 one-to-one two installation bases 42, two installation bases 42 are inserted into corresponding
After in installation gap 332, impact adjusting block 33 just can together be rotated with torsion cup 4.
In the present embodiment, the structure of positioning apparatus for circumferential direction is：It is circumferentially also equal on the madial wall of torsion cup 4
It is even to be arranged at intervals with several positioning grooves 43, the positioning plate 5 there are one detachable installations on the lateral wall of gear-box 2,
There are one can determine respectively with each 43 matched chuck 51 of positioning groove when chuck 51 is caught in some for setting on positioning plate 5
Torsion cup 4 can be carried out after in the groove 43 of position circumferentially positioned.
In the present embodiment, positioning plate 5 and the detachable installing structure of 2 lateral wall of gear-box are：The two of positioning plate 5
End is respectively arranged with a positioning crimping 52, and there are two can position crimpings 52 with two respectively for setting on 2 lateral wall of gear-box
One-to-one locating groove 21, two positioning crimpings 52 can pacify positioning plate 5 after being respectively clamped into corresponding locating groove 21
On lateral wall loaded on gear-box 2.
In the present embodiment, it impacts guide pad 32 and the mounting structure of 2 front end of gear-box is：In the outer of impact guide pad 32
Be oppositely arranged on edge there are two locating notch 322, in the front end of gear-box 2 setting there are two can respectively with two locating notches
322 matched positioning convex platforms 22, impact guide pad 32 are resisted against the front end of gear-box 2 and two positioning convex platforms 22 are made to insert respectively
After entering into two locating notches 322, impact guide pad 32 is just fixedly installed in the front end of gear-box 2.
Beneficial effects of the present invention are：Beater mechanism in electric impact drill of the present invention has used torsion cup to liquidate
It hits adjusting block and carries out gear shift operation, on the one hand make the structure of beater mechanism simpler in this way, on the other hand so that impact is adjusted
The gear shift operation of block more simple and convenient, so as to substantially increase the reliability of beater mechanism.
Claims (4)
1. the beater mechanism in electric impact drill, including：Determine impact block, determine impact block and be fixedly installed in gear-box, and determine to rush
Block is hit to be placed on the outside of main shaft, on the main shaft determined in front of impact block fastening be set with a dynamic impact block, determine impact block and
Fluctuation groove is respectively arranged in the opposite both ends of the surface of dynamic impact block, main shaft can inwardly move after being oppressed with dynamic impact block
It is dynamic, until the fluctuation groove face on dynamic impact block leans with the fluctuation groove face determined on impact block；It is characterized in that：In dynamic punching
It hits also empty set on the outside of the main shaft in front of block and, there are one guide pad is impacted, impacts the front end that guide pad to be fixedly installed in gear-box,
Impacting empty set on the outside of the main shaft in front of guide pad, there are one impact adjusting blocks, and impact can be adjusted when main shaft is moved inward by compressing
Locking nub carries out pushing tow, in the front end of impact guide pad at least provided with a spacing breach, in the rear end setting of impact adjusting block
Have can respectively with the one-to-one positive stop lug boss of each spacing breach, when rotary impact adjusting block make each positive stop lug boss with respectively
Corresponding spacing breach be staggered and be resisted against impact guide pad front end face on when, impact guide pad can to impact adjusting block into
Row blocking so that impact adjusting block can not move inward, can be by impact adjusting block by the main shaft oppressed under this state
Stop and can not move inward, moving impact block at this time and determining impact block can not just lean, so as to which main shaft can not just generate axial direction
It impacts, electric impact drill can only realize the function of " brill " under this state, and impact adjusting block is claimed to be in " brill " shelves at this time；When rotation is rushed
Hitting adjusting block enables each positive stop lug boss to be moved inward and when being inserted into corresponding spacing breach with impact adjusting block,
Impact adjusting block under this state with regard to energy pushing tow by the main shaft oppressed to move inward together, until moving impact block and determining impact
Block leans, then the rotation with main shaft, and main shaft just can generate axial impact, and electric impact drill can realize " impact under this state
The function of brill " claims impact adjusting block to be in " impact drill " shelves at this time, empty on the outside of the main shaft between impact adjusting block and gear-box
There are one resetting springs for set, and the rear end of resetting spring, which passes through, impacts guide pad and the bearing phase with being used to support main shaft in gear-box
Against front end and the impact adjusting block of resetting spring lean, and resetting spring can impact adjusting block by pushing tow resets main shaft
Position to where when not suffering oppression is also set up on the housing of electric impact drill there are one can be set in gear-box front end outer side
Torsion cup, and torsion cup can carry out rotation in gear-box front end outer side, and being additionally provided between torsion cup and gear-box can be right
Torsion cup carries out circumferentially positioned positioning apparatus for circumferential direction, also sets up that there are one main shaft can be allowed to pass through and might as well in the bottom of torsion cup
Hinder the through-hole of main shaft pushing tow impact adjusting block, impact adjusting block is installed in torsion cup so that rotary torsion cup can be with impact
Adjusting block rotates together, so as to which rotary torsion cup is with regard to that can adjust the gear residing for impact adjusting block, impacts adjusting block and torsion
Cup mounting structure be：At least provided with two installation gaps on the outer edge of impact adjusting block, on the bottom of torsion cup
Being provided with can be respectively with the one-to-one installation base of each installation gap, and each installation base is inserted into corresponding installation
After in notch, impact adjusting block just can together be rotated with torsion cup.
2. the beater mechanism in electric impact drill according to claim 1, it is characterised in that：The structure of positioning apparatus for circumferential direction
For：Uniform intervals are circumferentially gone back on the madial wall of torsion cup and are provided with several positioning grooves, in the outer of gear-box
There are one positioning plates for detachable installation on side wall, and there are one can match respectively with each positioning groove for setting on positioning plate
The chuck of conjunction can carry out torsion cup after chuck is caught in some positioning groove circumferentially positioned.
3. the beater mechanism in electric impact drill according to claim 2, it is characterised in that：Positioning plate and gear-box lateral wall
Detachable installing structure be：A positioning crimping is respectively arranged at the both ends of positioning plate, is set on gear-box lateral wall
It puts there are two the one-to-one locating grooves of crimping can be positioned with two respectively, two positioning crimpings are respectively clamped into corresponding positioning
Positioning plate can be made to be installed on the lateral wall of gear-box after in card slot.
4. the beater mechanism in electric impact drill according to claims 1 or 2 or 3, it is characterised in that：Impact guide pad and tooth
The mounting structure of roller box front end is：It is oppositely arranged on the outer edge of impact guide pad there are two locating notch, in gear-box
Front end setting there are two can respectively with two matched positioning convex platforms of locating notch, impact guide pad be resisted against gear-box before
After holding and two positioning convex platforms being made to be inserted into respectively in two locating notches, impact guide pad is just fixedly installed in gear-box
Front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610677424.0A CN106078622B (en) | 2016-08-17 | 2016-08-17 | Beater mechanism in electric impact drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610677424.0A CN106078622B (en) | 2016-08-17 | 2016-08-17 | Beater mechanism in electric impact drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106078622A CN106078622A (en) | 2016-11-09 |
| CN106078622B true CN106078622B (en) | 2018-06-26 |
Family
ID=58069254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610677424.0A Active CN106078622B (en) | 2016-08-17 | 2016-08-17 | Beater mechanism in electric impact drill |
Country Status (1)
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| CN (1) | CN106078622B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10253972A1 (en) * | 2002-11-20 | 2004-06-03 | Robert Bosch Gmbh | Hand tool, in particular hammer drill or hammer |
| ATE396838T1 (en) * | 2004-12-23 | 2008-06-15 | Black & Decker Inc | POWER TOOL HOUSING |
| US7410007B2 (en) * | 2005-09-13 | 2008-08-12 | Eastway Fair Company Limited | Impact rotary tool with drill mode |
| CN202278563U (en) * | 2011-10-08 | 2012-06-20 | 东莞百事得电动工具有限公司 | Impact drill |
| CN205950666U (en) * | 2016-08-17 | 2017-02-15 | 张家港市创基机械设备制造有限公司 | Beater mechanism among electric impact drill |
-
2016
- 2016-08-17 CN CN201610677424.0A patent/CN106078622B/en active Active
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| Publication number | Publication date |
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| CN106078622A (en) | 2016-11-09 |
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Denomination of invention: Impact mechanism in impact electric drill Effective date of registration: 20220328 Granted publication date: 20180626 Pledgee: Jiangsu Zhangjiagang Rural Commercial Bank Co.,Ltd. Pledgor: Zhangjiagang Chuangji Machinery Manufacturing Co.,Ltd. Registration number: Y2022320010095 |
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