CN105970904A - Adjustable compaction machine - Google Patents
Adjustable compaction machine Download PDFInfo
- Publication number
- CN105970904A CN105970904A CN201610062062.4A CN201610062062A CN105970904A CN 105970904 A CN105970904 A CN 105970904A CN 201610062062 A CN201610062062 A CN 201610062062A CN 105970904 A CN105970904 A CN 105970904A
- Authority
- CN
- China
- Prior art keywords
- wheel
- frame
- hammer ram
- rammer compacter
- adjustable
- 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
- 238000005056 compaction Methods 0.000 title abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000005484 gravity Effects 0.000 claims abstract description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002689 soil Substances 0.000 abstract description 3
- 238000004080 punching Methods 0.000 abstract description 2
- 241001270131 Agaricus moelleri Species 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 101100328887 Caenorhabditis elegans col-34 gene Proteins 0.000 description 9
- 244000309464 bull Species 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 241000237858 Gastropoda Species 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/06—Gearings for conveying rotary motion by endless flexible members with chains
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Toys (AREA)
Abstract
The invention provides an adjustable compaction machine. The machine comprises a rack, a rammer disposed on the front end of the rack, a transmission device which drives the rammer to make periodic lifting motion under gravity effects, a control device which is disposed inside the rack and used to control work of the transmission device as well as an adjustment device which is firmly disposed on the rack and used to adjust an impact depth of the rammer. The rammer can be a flat-top rammer which is used for compaction of backfill soil, and can also be a sharp-head impact block which can be used for positioned punching. The machine provided by the invention can adjust an impact distance of the rammer in time according to a height of ground compaction and is applicable to compaction of low-lying parts or raised ground surfaces.
Description
Technical field
The present invention relates to building machinery field, be specifically related to a kind of adjustable rammer compacter.
Background technology
The compacting of building ground backfill soil directly influences the structural stability of building, and traditional ground compacting is mainly passed through
Artificial ramming is carried out, and not only takes a lot of work laborious, and inefficiency.Rammer compacter is a kind of conventional building machinery, and it utilizes punching
Hitting and impact shock effect compaction in layers backfill soil, mechanization running substantially increases compacting efficiency, compensate for hand compaction
Defect.But rammer compacter is the most bulky, the impact depth of hammer ram is fixed, and is relatively suitable for open ground, for low-lying place or
The protruding compacting on highland does not often have effect.Therefore it is the most necessary for providing a kind of adjustable rammer compacter of compacted depth
's.
Chinese invention patent application (application number 201510156092.7) provides a kind of novel double-end rammer compacter, and it is hand steered
Frame is arranged on base, and handrail is provided with on and off switch, and the top of on and off switch is provided with regulation panel, and handrail is provided with electricity
Machine, motor is connected with change speed gear box, and change speed gear box is connected with two drives respectively, two drives by belt respectively with two skins
Belt wheel connects, and two belt pulleys are equipped with eccentric hammer ram, the blowing support with boat centrally through connecting rod and be connected hammer ram and prop up of belt pulley
Frame is connected with base by bearing pin, rams seat and is movably arranged on the lower section of two belt pulleys；This patent application simple in construction, operation side
Just, double end can tamp processing within the short time of same place in turn, and rammer power can regulate as required so that the quality of processing
Guaranteed, and reduce labor intensity, improve working (machining) efficiency.But this patent application can only regulate rammer power, and the rushing of hammer ram
Hit distance fixing, it is impossible to freely regulate, the Ramming operation on the height of low-lying place or protrusion is difficult to carry out.
Summary of the invention
For solving the problems referred to above, the invention provides a kind of adjustable rammer compacter, it can be according to the height on compacting ground
Regulate the impact distance of hammer ram in time, it is adaptable to the Ramming operation at the ground of low-lying place or projection.
The present invention solves that the technical scheme that above-mentioned technical problem is used is as follows:
The present invention includes frame, the hammer ram being arranged at described frame front end, drives described hammer ram to do under gravity periodically
The actuating device of elevating movement, be arranged at described machine frame inside and for control described transmission operation control device and
It is fixedly installed in described frame and for regulating the adjusting means of described hammer ram impact depth；Described hammer ram can be that tack rams
Hammer, carries out compacted backfill, it is also possible to change tip impact block into, thus carry out positional punch.
Further, described adjusting means includes being arranged in described frame and stretching along described frame fore-aft adjustable
Platform, the wiring roller being arranged in described frame, it is coaxially disposed in the turbine of described wiring roller one end and matches with described turbine
The worm screw closed；Described worm screw free end passes from described frame.
Preferably, described worm screw free end is provided with regulation handle, and when rotating clockwise regulation handle, worm screw drives whirlpool
Wheel rotates clockwise, and is tightened up by lifting rope, shortens the dropping distance of hammer ram；When regulation handle counterclockwise, worm screw drives turbine inverse
Hour hands rotate, and lifting rope extends, and increases the dropping distance of hammer ram, and turbine and worm is self-locking structure, when not rotating regulation handle, and snail
Worm and gear locks automatically, thus the length of lifting rope is fixed.
Further, described actuating device include lifting rope, middle part be pivotably coupled to the lever in described frame and
The first fixed pulley being fixedly installed in described frame and the second fixed pulley being fixedly installed on described telescopic platform；Described lever
One end is provided with movable pulley；Described lifting rope one end is connected with described hammer ram, and the other end walks around described first fixed pulley, the second fixed cunning
Wheel is connected with described wiring roller with after movable pulley.
Further, described control device includes breach wheel, power set and the transmission being coaxially disposed in described frame
Wheel；Described breach wheel outer surface lower end is tangent with the free end of described lever；Described balance pivot is more than to the length of free end
The distance at the foreign steamer edge that balance pivot is taken turns to breach, takes turns the distance between edge less than in balance pivot to breach wheel, makes thick stick
Bar can be tangent with the foreign steamer edge of breach wheel, and does not contact with interior wheel.
Preferably, described breach wheel both sides are installed with baffle plate or radially offer groove at its outer surface, described scarce
Tangent with the free end of described lever or groove the inwall in mouth wheel outer surface lower end is tangent with the free end of described lever.
As the another kind of improved procedure of the present invention, described control device also includes for making what described drive slowed down to subtract
Speed variator.
Further, described deceleration device includes driving wheel and the deceleration being connected with described driving wheel by belt or chain
Wheel；Described ratio wheel is secondary pulley or two-stage chain bar wheel；The big wheel diameter of described ratio wheel is straight more than described driving wheel
Footpath；The little wheel diameter of described ratio wheel is less than the diameter of described drive, and described driving wheel is driven by power set.
Further, described drive, driving wheel and described ratio wheel are belt pulley；Described driving wheel passes through V-belt
Being connected with the bull wheel of described ratio wheel, the steamboat of described ratio wheel is connected with described drive by V-belt.
As the another kind of improvement of the present invention, described deceleration device is decelerator.
Further, described hammer ram upper end or described frame front end are provided with boosting bullet on described hammer ram correspondence position
Spring.
The present invention has following technical effect that
(1) present invention is provided for regulating the adjusting means of described hammer ram impact depth, can carry out the ground of differing heights
Compacting, is possible not only to the compacting end, hole, it is also possible to compacting plateau.
(2) adjusting means of the present invention uses the structure of worm and gear, can be by rotating rotary handle, the length of regulation lifting rope
Degree, convenient and practical.
(3) adjustment of position before and after telescopic platform, can drive the adjustment of hammer ram front and back position, convenient compacting diverse location
The ground of point.
(4) worm screw free end is provided with regulation handle, can be adjusted turning to of turbine by rotating regulation handle, convenient
Practical.
(5) actuating device is by the displacement of lifting rope transmission lever, arranges the first fixed pulley, the second fixed pulley makes actuating device
Run convenient, more save space, movable pulley is set, the amplitude of hammer ram can be increased.
(6) breach wheel both sides are installed with baffle plate or radially offer groove at its outer surface, it is possible to prevent lever certainly
By end, deviation occurs.
(7) setting of deceleration device, can reduce the vibration frequency of hammer ram by reducing the rotating speed of breach wheel.
(8) hammer ram upper end or frame front end are provided with boosting spring on hammer ram correspondence position, are possible not only to play hammer ram
To booster action, moreover it is possible to play cushioning effect to a certain extent by being buffered in.
Accompanying drawing explanation
Accompanying drawing 1 is sling status architecture schematic diagram for hammer ram of the present invention；
Accompanying drawing 2 is hammer ram full state structural representation of the present invention；
Accompanying drawing 3 is the structural representation of wiring roller of the present invention；
Accompanying drawing 4 is breach of the present invention wheel and the structural representation of drive.
In accompanying drawing: 1-frame；2-wheel；3-groove；4-hammer ram；5-handle；6-regulates handle；7-driving wheel；8-slows down
Wheel；9-breach is taken turns；10-turbine；11-lever；12-movable pulley；13-the first fixed pulley；14-the second fixed pulley；15-boosting bullet
Spring；16-lifting rope；17-worm screw；18-wiring roller；19-drive；20-telescopic platform.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As Figure 1-4, the present invention includes frame 1, the hammer ram 4 being arranged at described frame 1 front end, drives described hammer ram 4
Make the actuating device of cyclical upturn and downturn campaign under gravity, be arranged at described frame 1 inside and for controlling described transmission
What device worked controls device and is fixedly installed in described frame 1 and for regulating the regulation of described hammer ram 4 impact depth
Device；Described frame 1 lower end is provided with wheel 2, and described frame 1 rear end is provided with handle 5；Described hammer ram 4 is tack hammer ram.
Described adjusting means include being arranged in described frame 1 and along described frame 1 fore-aft adjustable telescopic platform 20, arrange
Wiring roller 18 in described frame 1, be coaxially disposed the turbine 10 in described wiring roller 18 one end and with described turbine 10 phase
The worm screw 17 coordinated；Described worm screw 17 free end passes from described frame 1；Turbine can be adjusted by rotating regulation handle 6
10 turn to, tamps different location points by adjusting the position of telescopic platform 20, convenient and practical.
Described actuating device includes that lifting rope 16, middle part are pivotably coupled to the lever 11 in described frame 1 and fix
The first fixed pulley 13 being arranged in described frame 1 and the second fixed pulley 14 being fixedly installed on described telescopic platform 20；Described
Lever 11 one end is provided with movable pulley 12；Described lifting rope 16 one end is connected with described hammer ram 4, and it is fixed sliding that the other end walks around described first
Wheel the 13, second fixed pulley 14 is connected with described wiring roller 18 with after movable pulley 12.
Described control device includes breach wheel 9, power set and the drive 19 being coaxially disposed in described frame 1；Institute
Stating breach to take turns 9 outer surfaces and radially offer groove 3, it is tangent with the free end of described lever 11 that described breach takes turns 9 outer surface lower ends
Or the inwall of groove 3 is tangent with the free end of described lever 11.Described control device also includes for making described drive 19
The deceleration device slowed down.Breach is taken turns 9 outer surfaces and is radially offered groove 3, it is possible to prevent lever 11 free end from deviation occur.
Described deceleration device includes driving wheel 7 and the ratio wheel 8 being connected with described driving wheel 7 by belt；Described deceleration
Wheel 8 is secondary pulley；The big wheel diameter of described ratio wheel 8 is more than the diameter of described driving wheel 7；The steamboat of described ratio wheel 8
Diameter is less than the diameter of described drive 19；Described driving wheel 7 is connected with the bull wheel of described ratio wheel 8 by V-belt, described
The steamboat of ratio wheel 8 is connected with described drive 19 by V-belt；Described driving wheel 7 is driven by power set.
Described hammer ram 4 upper end or described frame 1 front end are provided with boosting spring 15, no on described hammer ram 4 correspondence position
Only hammer ram can be played booster action, moreover it is possible to play cushioning effect to a certain extent by being buffered in.
Work process of the present invention is as follows:
As shown in Figure 1-2, hand-held handle 5, shift the present invention onto job site, according to the height of job site, rotate regulation hands
Handle 6, worm screw 17 rotates and drives turbine 10 to rotate, when lifting rope 16 is adjusted to suitable length, between turbine 10 and worm screw 17
Self-locked, so that lifting rope 16 is fixed on this length, according to the distance of compacting location point with fuselage 1, adjusts telescopic platform 20
Position, after having adjusted, open motor, driven by motor driving wheel 7 rotates, V-belt drive ratio wheel 8 bull wheel start turn
Dynamic, bull wheel drives steamboat to rotate, and steamboat drives drive 19 to rotate by V-belt, owing to drive 19 and breach take turns 9
Coaxially, breach wheel 9 starts to rotate, and the free end of lever 11 is pressed in the groove 3 on breach wheel 9, and with the inwall phase of groove 3
Cut, when the gap portions of breach wheel 9 turns at lever 11, and lever 11 rotates with fulcrum for axle, and its free end loses pressure
Power, starts to be upturned, and movable pulley 12 moves downward, thus discharges lifting rope 16, and hammer ram 4 is pounded earthward under gravity, complete
Become dropping process.
Breach wheel 9 is rotated further, and the foreign steamer of breach wheel 9 pushes down lever 11, and lever 11 turns to breach wheel 9 with breach wheel 9
Lower end, and be rotated up in movable pulley 12 one end of the groove 3 tangent lever of inwall 11 of the foreign steamer of breach wheel 9, thus will hang
Rope 16 is upwards provoked, and hammer ram 4 moves upward under the pulling force of lifting rope, completes lifting process.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (10)
1. an adjustable rammer compacter, it is characterised in that: it includes frame (1), is arranged at the hammer ram of described frame (1) front end
(4) described hammer ram (4), is driven to make the actuating device of cyclical upturn and downturn campaign under gravity, be arranged in described frame (1)
Portion also is used for controlling the control device of described transmission operation and be fixedly installed on described frame (1) above and to be used for regulating institute
State the adjusting means of hammer ram (4) impact depth.
The adjustable rammer compacter of one the most according to claim 1, it is characterised in that: described adjusting means includes being arranged at institute
State that frame (1) is upper and telescopic platform (20) along described frame (1) fore-aft adjustable, the wiring roller that is arranged in described frame (1)
(18), it is coaxially disposed in the turbine (10) of described wiring roller (18) one end and the worm screw matched with described turbine (10)
(17)；Described worm screw (17) free end passes from described frame (1).
The adjustable rammer compacter of one the most according to claim 2, it is characterised in that: described worm screw (17) free end is provided with
Regulation handle (6).
4. according to the adjustable rammer compacter of the one described in Claims 2 or 3, it is characterised in that: described actuating device includes lifting rope
(16) lever (11) that, middle part is pivotably coupled in described frame (1) and be fixedly installed in described frame (1)
One fixed pulley (13) and the second fixed pulley (14) being fixedly installed on described telescopic platform (20)；Described lever (11) one end is arranged
There is movable pulley (12)；Described lifting rope (16) one end is connected with described hammer ram (4), the other end walk around described first fixed pulley (13),
Second fixed pulley (14) is connected with described wiring roller (18) afterwards with movable pulley (12).
The adjustable rammer compacter of one the most according to claim 4, it is characterised in that: described control device includes being coaxially disposed
Breach wheel (9), power set and drive (19) in described frame (1)；Described breach wheel (9) outer surface lower end is with described
The free end of lever (11) is tangent.
The adjustable rammer compacter of one the most according to claim 5, it is characterised in that: the fixing peace in described breach wheel (9) both sides
Radially groove (3) is offered equipped with baffle plate or at its outer surface；Described breach wheel (9) outer surface lower end and described lever (11)
Tangent or groove (3) the inwall of free end is tangent with the free end of described lever (11).
7. according to the adjustable rammer compacter of the one described in claim 5 or 6, it is characterised in that: described control device also includes using
In the deceleration device making described drive (19) slow down.
The adjustable rammer compacter of one the most according to claim 7, it is characterised in that: described deceleration device includes driving wheel
(7) ratio wheel (8) and with described driving wheel (7) being connected by belt or chain；Described ratio wheel (8) be secondary pulley or
Two-stage chain bar is taken turns；The big wheel diameter of described ratio wheel (8) is more than the diameter of described driving wheel (7)；The steamboat of described ratio wheel (8)
Diameter is less than described drive (19)；Described driving wheel (7) is driven by power set.
The adjustable rammer compacter of one the most according to claim 8, it is characterised in that: described deceleration device is decelerator.
The adjustable rammer compacter of one the most according to claim 1, it is characterised in that: described hammer ram (4) upper end or described machine
It is provided with boosting spring (15) on frame (1) front end and described hammer ram (4) correspondence position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610062062.4A CN105970904B (en) | 2016-01-29 | 2016-01-29 | A kind of adjustable rammer compacter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610062062.4A CN105970904B (en) | 2016-01-29 | 2016-01-29 | A kind of adjustable rammer compacter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105970904A true CN105970904A (en) | 2016-09-28 |
| CN105970904B CN105970904B (en) | 2018-07-27 |
Family
ID=56988479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610062062.4A Active CN105970904B (en) | 2016-01-29 | 2016-01-29 | A kind of adjustable rammer compacter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105970904B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202140A (en) * | 2017-05-24 | 2017-09-26 | 陕西科技大学 | The pressure-sizing machinery of piston movement is engaged based on internal tooth |
| CN109914381A (en) * | 2019-02-14 | 2019-06-21 | 张苇 | A kind of subgrade construction ramming compaction apparatus |
| CN112359812A (en) * | 2020-11-05 | 2021-02-12 | 湖北禹桥建筑工程有限公司 | Foundation leveling device for building construction |
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| CN2756709Y (en) * | 2004-09-28 | 2006-02-08 | 周祥 | Movable suspending impact rammer and pile spreader |
| DE102004048459A1 (en) * | 2004-10-05 | 2006-04-13 | Wacker Construction Equipment Ag | Vibration plate with drawbar integrated in the remote control |
| CN204456056U (en) * | 2015-02-09 | 2015-07-08 | 海安县恒益滑动轴承有限公司 | A kind ofly novel beat ground device |
| CN104790374A (en) * | 2015-04-03 | 2015-07-22 | 金陵科技学院 | Novel double-head tamper |
| CN205530210U (en) * | 2016-01-29 | 2016-08-31 | 赵海青 | Rammer compactor with adjustable |
-
2016
- 2016-01-29 CN CN201610062062.4A patent/CN105970904B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2670441Y (en) * | 2003-12-22 | 2005-01-12 | 吴吉川 | Improved paving beater |
| CN2756709Y (en) * | 2004-09-28 | 2006-02-08 | 周祥 | Movable suspending impact rammer and pile spreader |
| DE102004048459A1 (en) * | 2004-10-05 | 2006-04-13 | Wacker Construction Equipment Ag | Vibration plate with drawbar integrated in the remote control |
| CN204456056U (en) * | 2015-02-09 | 2015-07-08 | 海安县恒益滑动轴承有限公司 | A kind ofly novel beat ground device |
| CN104790374A (en) * | 2015-04-03 | 2015-07-22 | 金陵科技学院 | Novel double-head tamper |
| CN205530210U (en) * | 2016-01-29 | 2016-08-31 | 赵海青 | Rammer compactor with adjustable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202140A (en) * | 2017-05-24 | 2017-09-26 | 陕西科技大学 | The pressure-sizing machinery of piston movement is engaged based on internal tooth |
| CN109914381A (en) * | 2019-02-14 | 2019-06-21 | 张苇 | A kind of subgrade construction ramming compaction apparatus |
| CN112359812A (en) * | 2020-11-05 | 2021-02-12 | 湖北禹桥建筑工程有限公司 | Foundation leveling device for building construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105970904B (en) | 2018-07-27 |
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Effective date of registration: 20180530 Address after: 075000 five abutment village, East Yao zi Town, Qiaoxi District, Zhangjiakou, Hebei Applicant after: Zhangjiakou Chuangxin Machinery Technology Co., Ltd. Address before: 075000 3-2-103, nanjingjing garden, Zhangjiakou, Hebei. Applicant before: Zhao Haiqing |
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Effective date of registration: 20201110 Address after: 221000 No.1, Zhangjiagang East Road, Yitang Town, Pizhou City, Xuzhou City, Jiangsu Province Patentee after: Pizhou Binhe SME Management Service Co.,Ltd. Address before: The five West East Pier brothel Town Village 075000 Zhangjiakou city of Hebei Province Bridge Patentee before: ZHANGJIAKOU CHUANGXIN MACHINERY TECHNOLOGY Co.,Ltd. |
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