CN209704475U - A kind of drilling machine equipment of alternative small-sized rotary drilling rig - Google Patents
A kind of drilling machine equipment of alternative small-sized rotary drilling rig Download PDFInfo
- Publication number
- CN209704475U CN209704475U CN201920204368.8U CN201920204368U CN209704475U CN 209704475 U CN209704475 U CN 209704475U CN 201920204368 U CN201920204368 U CN 201920204368U CN 209704475 U CN209704475 U CN 209704475U
- Authority
- CN
- China
- Prior art keywords
- lifting rope
- bottom frame
- rolling wheel
- rack
- machine equipment
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims description 99
- 238000005096 rolling process Methods 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 description 16
- 230000005484 gravity Effects 0.000 description 8
- 239000002689 soil Substances 0.000 description 3
- 208000001613 Gambling Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a kind of drilling machine equipment of alternative small-sized rotary drilling rig, are related to the technical field of construction equipment comprising drilling rod and drill bit further include rack；The rack includes front column and two oblique lateral columns there are two four edges of bottom frame and bottom frame that four steel columns are fixed together the quadrangle to be formed are fixedly connected；Two front columns are provided with crossbeam far from one end of bottom frame；It further include driving motor and rolling wheel；Driving motor drives rolling wheel rotation, is arranged with lifting rope on rolling wheel, and one end of lifting rope is fixedly connected on rolling wheel, and rolling wheel carries out folding and unfolding to lifting rope by positive and negative rotation；The lifting rope is overlapped on crossbeam, and the other end of the lifting rope is fixedly connected on drilling rod.The utility model has the effect of being capable of replacement for small rotary drilling rig progress drilling construction.
Description
Technical field
The utility model relates to the technical fields of construction equipment, more particularly, to a kind of alternative small-sized rotary drilling rig
Drilling machine equipment.
Background technique
Rotary drilling rig is a kind of construction machinery of pore-forming operation in suitable building foundation engineering.It is primarily adapted for sand, viscosity
The construction of the soil layers such as soil, slity soil, is used widely in a variety of foundation basic constructions such as bored concrete pile, diaphragm wall, strengthening of foundation.
Such drilling machine generally use hydraulic crawler stretch chassis, the foldable brill mast of automatic lifting, telescopic drill rod, with verticality from
It moves and detects adjustment, hole depth digital-scroll technique etc., complete machine manipulation generally uses Hydraulic guide control, load sensing, light with operation,
The features such as comfortable.Major and minor two elevators are applicable to the needs of a variety of situations in building site.Such drilling machine cooperates different drilling tools, is applicable in
In the pore-forming operation of dry type (short spiral) or wet type (rotary bucket) and rock stratum (rock core drill), can also connect with extension long screw auger, underground
Continuous wall grab bucket, vibrohammer etc., realization multiple functions, be mainly used for urban construction, highway bridge, industry and civil buildings,
The foundation constructions such as lower diaphragm wall, water conservancy, antiseepage slope protection.
Authorization Notice No. is that the Chinese patent of CN204920774U discloses a kind of small-sized rotary drilling rig, it includes chassis,
The side on chassis is connected with big triangle joint arm by pin shaft, and chassis side in the middle part of pin shaft and big triangle joint arm by connecting
It connects, the left end in big triangle joint portion is connected with mast by pin shaft, and the right end of big triangle joint arm is connected with amplitude modulation by pin shaft
Oil cylinder, the upper front end of big triangle joint arm are equipped with main winch, and mast lower part is fixedly installed with secondary hoist engine, main winch
It is separately installed with wirerope A and wirerope B with secondary hoist engine, wirerope A and wirerope B are respectively connected with top pulleys, wirerope A
It is respectively connected with drilling rod with the end of wirerope B, the end of drilling rod is provided with drill bit, and power head, a left side for mast are set on drilling rod
Side is equipped with pressurization oil cylinder.
Prior art among the above has the following deficiencies: that in small-sized construction enterprises, construction personnel is less, available
Equipment is limited, and used rotary drilling rig is to rent.After completing total construction task, the driver for transporting rotary drilling rig is opened
Trailer by rotary drilling rig transport back oneself company or next construction position.But actual in use, rotary drilling rig category
In large scale equipment, staff needs to spend longer time on being sent to trailer, once and road traffic there is thing
Therefore such as situations such as repair the roads, block up, driver needs the longer time rotary drilling rig could be transported to job location, causes to construct
It delays.
Utility model content
The purpose of the utility model is to provide a kind of drilling machine equipment of alternative small-sized rotary drilling rig, can substitute
Small-sized rotary drilling rig carries out drilling construction, solves the problems, such as that its transhipment is difficult.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of drilling machine equipment of alternative small-sized rotary drilling rig, including drilling rod and drill bit, further include rack；
The rack includes that four steel columns are fixed together the bottom frame for the quadrangle to be formed and four sides of bottom frame
Front column and two oblique lateral columns there are two being fixedly connected at angle；Two front columns are provided with crossbeam far from one end of bottom frame；
It further include driving motor and rolling wheel；
Driving motor drives rolling wheel rotation, is arranged with lifting rope on rolling wheel, one end of lifting rope is fixedly connected on rolling wheel, rolling wheel
Folding and unfolding is carried out to lifting rope by positive and negative rotation；
The lifting rope is overlapped on crossbeam, and the other end of the lifting rope is fixedly connected on drilling rod.
By using above-mentioned technical proposal, when being drilled, rack is integrally transported to job location by staff, is opened
Open driving motor and drill bit, so that drill bit, while drilling, rolling wheel transfers lifting rope, allow drill bit entire lowering, it is continuous downwards
It drills.Compared to straight lease rotary drilling rig, rotary drilling rig is replaced to drill with drilling machine equipment, and by drilling machine
The case where tool equipment is placed at the construction field (site), can either prevent construction from delaying appearance, can also reduce the engineering cost of producer, energy
The disbursement about rotary drilling rig is enough greatly reduced.
The utility model is further arranged to: being fixedly connected with installation plate on the bottom frame；
The driving motor and the rolling wheel are mounted on the installation plate.
By using above-mentioned technical proposal, installation plate is fixedly connected on bottom frame, and driving motor, rolling wheel are mounted on installation plate
On, so that driving motor and rolling wheel arrangement are on the rack, it, can be by driving motor and rack when staff is to machine frame movement
It moves together.
The utility model is further arranged to: the limitation pulley of restricted lifting rope position, institute are fixedly connected on the crossbeam
Lifting rope is stated in limitation pulley.
By using above-mentioned technical proposal, so that lifting rope when shaking, limits cunning of the pulley to lifting rope on crossbeam
It is dynamic to be limited.
The utility model is further arranged to: limit base is fixedly connected on the drilling rod, the two sides of limit base are set in
On two front columns.
By using above-mentioned technical proposal, when kelly bar under lifting rope and drill bit, limit base declines together with drilling rod, and
And limit base can decline when declining together with drilling rod along front column, so that when drill bit and drilling rod vibrate, limit
Seat connection on the rack, limits drill bit and drilling rod, prevents drilling rod and drill bit from deviation occurs.
The utility model is further arranged to: is placed in the rack for being suppressed rack, preventing rack from inclining
Clump weight；
The clump weight is arranged on bottom frame, and bottom frame is pushed down.
By using above-mentioned technical proposal, so that bottom frame is close to ground, when drilling depth increases, drilling machine equipment
Center of gravity a position is remained under the action of clump weight, thus allow rack arrange it is more stable.
The utility model is further arranged to: the storage case for containing clump weight is equipped on the bottom frame.
By using above-mentioned technical proposal, staff is by the way that clump weight to be placed in storage case, Lai Shixian clump weight
Stablize arrangement, the case where preventing clump weight from taking off from rack appearance.
The utility model is further arranged to: the two sides protrusion of the storage case is provided with connecting plate, the side of connecting plate
It is set on the steel column on bottom frame, and is to be set in both ends to be connected separately on the steel column of front column and oblique lateral column.
By using above-mentioned technical proposal, so that staff is when adjusting the position of storage case, it is only necessary to storage case
Storage case moves between rolling wheel and drilling rod when carrying out pushing energy, and staff is allowed also in the case where not increasing clump weight
Change the position of rack center of gravity.
The utility model is further arranged to: being provided with lift column on the oblique lateral column.
By using above-mentioned technical proposal, when needing for rack to be transported at next operating position, two work people
Member has been removed rack by lifting column, and compared to the bottom frame for directly moving rack, the position of staff is on lift column, and two
A staff is lifted rack in a manner of ganging up in gambling, and rack can be allowed to be easier to be transported to next operating position.
In conclusion the advantageous effects of the utility model are as follows:
1. can either prevent the case where delaying appearance of constructing by setting drilling machine equipment, can also reduce producer
The disbursement about rotary drilling rig can be greatly reduced in engineering cost；
2. allowing rack to arrange more stable by setting clump weight；
3. allowing the stability of rack to further increase by setting storage case.
Detailed description of the invention
Fig. 1 is the schematic diagram of drilling machine equipment in the present embodiment；
Fig. 2 is the schematic diagram of rack in the present embodiment.
In figure, 1, rack；101, steel column；102, bottom frame；103, front column；104, oblique lateral column；105, crossbeam；2, it arranges
Plate；3, driving motor；4, retarder；5, rolling wheel；6, lifting rope；7, drilling rod；8, drill bit；9, pulley is limited；10, limit base；11, match
Pouring weight；12, storage case；13, connecting plate；14, column is lifted.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It as shown in Figure 1 and Figure 2, is a kind of drilling machine equipment of alternative small-sized rotary drilling rig disclosed by the utility model,
Including rack 1, rack 1 includes that four steel columns 101 are fixed together the bottom frame 102 of the quadrangle to be formed, and the four of bottom frame 102
A edge is fixedly connected there are two front column 103 and two oblique lateral columns 104.Two front columns 103 are vertically fixedly connected on bottom
The both ends of a steel column 101 on frame 102.Two oblique lateral columns 104 are in tilted layout with bottom frame 102, and tiltedly one end of lateral column 104
It being fixed together with the corner of bottom frame 102, the other end is fixedly connected on the one end of front column 103 far from bottom frame 102, and one
Front column 103 and an oblique lateral column 104 are fixed together.It is provided in two front columns 103 far from one end of bottom frame 102
Crossbeam 105, end of the both ends of crossbeam 105 respectively with two front columns 103 are fixed together.
In rack 1, arrangement is fixedly connected on the steel column 101 that is fixed together on bottom frame 102 with two oblique lateral columns 104
Plate 2, is fixedly connected with driving motor 3, retarder 4 and rolling wheel 5 on installation plate 2, and driving motor 3 is driven by retarder 4
Rolling wheel 5 rotates, and is arranged with lifting rope 6 on rolling wheel 5, and one end of lifting rope 6 is fixedly connected on rolling wheel 5, and rolling wheel 5 is by positive and negative rotation to hanging
Rope 6 carries out folding and unfolding.Lifting rope 6 is overlapped on crossbeam 105, and is fixedly connected with drilling rod 7 in the other end of lifting rope 6, drilling rod 7 it is another
One end is equipped with drill bit 8.
When being drilled, 1 entirety of rack is transported to job location by staff, opens driving motor 3 and drill bit 8,
So that drill bit 8, while drilling, rolling wheel 5 transfers lifting rope 6, allows 8 entire lowering of drill bit, constantly drill downwards.It compares
In straight lease rotary drilling rig, rotary drilling rig is replaced to drill with drilling machine equipment, and drilling machine equipment is placed on
Construction site can either prevent the case where delaying appearance of constructing, can also reduce the engineering cost of producer, can significantly subtract
Few disbursement about rotary drilling rig.
Lifting rope 6 decentralization when, lifting rope 6 is under the action of 8 gravity of drilling rod 7 and drill bit, it may occur that tighten so that lifting rope 6 with
Contact between crossbeam 105 is more bonded, but actual in use, drill bit 8 is during drilling, it is easy to touch ground
Under the hard object such as stone so that drill bit 8 and drilling rod 7 vibrate, when the vibration generated on drill bit 8 and drilling rod 7 is transmitted to lifting rope 6
It when upper, may allow lifting rope 6 that certain shaking occurs, lifting rope 6 is caused to occur along 105 length direction of crossbeam on crossbeam 105
Sliding changes lifting rope 6 to the Hoisting Position of drilling rod 7, influences the accurate of boring work.
Lifting rope 6 shakes in order to prevent, and the limitation pulley 9 of restricted 6 position of lifting rope is fixedly connected on crossbeam 105,
Lifting rope 6 is in limitation pulley 9, so that lifting rope 6 when shaking, limits sliding of the pulley 9 to lifting rope 6 on crossbeam 105
It is limited.
When vibrating, deviation occurs for drilling rod 7 and drill bit 8 for drilling rod 7 and drill bit 8 in order to prevent, fixed on drilling rod 7 to connect
It is connected to limit base 10, the two sides of limit base 10 are set on two front columns 103.When the lower kelly bar 7 of lifting rope 6 and drill bit 8, limit
Position seat 10 declines together with drilling rod 7, and limit base 10, when declining together with drilling rod 7, meeting is along under front column 103
Drop, so that limit base 10 is connected in rack 1 when drill bit 8 and drilling rod 7 vibrate, limits drill bit 8 and drilling rod 7,
Prevent drilling rod 7 and drill bit 8 from deviation occurs.
With the increase of drilling depth, the change of position can occur for the center of gravity of drilling machine equipment, so that rack 1 is inclined
Possibility, it is more stable in order to allow rack 1 to arrange, it is placed in rack 1 for being suppressed rack 1, preventing rack 1
The clump weight 11 toppled over, clump weight 11 are arranged on bottom frame 102, and bottom frame 102 is pushed down, so that bottom frame 102 is close to ground, when
When drilling depth increases, the center of gravity of drilling machine equipment remains at a position under the action of clump weight 11, to allow
Rack 1 is arranged more stable.
In addition, being less prone to the feelings slided from rack 1 to make arrangement of the clump weight 11 in rack 1 more secured
Condition is equipped with the storage case 12 for containing clump weight 11 on bottom frame 102, and staff is by being placed on appearance for clump weight 11
It receives in case 12, Lai Shixian clump weight 11 stablizes the case where arranging, preventing clump weight 11 from taking off from rack 1 appearance.
In order to allow rack 1 that can be always maintained at stabilization, staff can both be changed by increasing clump weight 11 always
Center of gravity can also change the position of center of gravity by changing position of the storage case 12 in rack 1.
Wherein, in the two sides of storage case 12, protrusion is provided with connecting plate 13, and the side of connecting plate 13 is set on bottom frame 102
Steel column 101 on, and be to be set in both ends to be connected separately on the steel column 101 of front column 103 and oblique lateral column 104, so that work
Make personnel when adjusting the position of storage case 12, it is only necessary to which storage case 12 is in 5 He of rolling wheel when carrying out pushing energy to storage case 12
It is moved between drilling rod 7, allows staff that can also change the position of 1 center of gravity of rack in the case where not increasing clump weight 11.
When completing the boring work of a position, staff needs rack 1 being transported to next operating position, is
Staff can be easier to move rack 1, is provided on oblique lateral column 104 lift column 14, lift column 14 is vertically fixed to be connected
It connects on oblique lateral column 104, when needing for rack 1 to be transported at next operating position, two staff are by lifting
Column 14 has removed rack 1, and compared to the bottom frame 102 for directly moving rack 1, the position of staff is on lift column 14, and two
Staff is lifted rack 1 in a manner of ganging up in gambling, and rack 1 can be allowed to be easier to be transported to next operating position.
The implementation principle of the present embodiment are as follows: when being drilled, 1 entirety of rack is transported to job location by staff,
Driving motor 3 and drill bit 8 are opened, so that drill bit 8, while drilling, rolling wheel 5 transfers lifting rope 6, allows 8 entire lowering of drill bit, no
Disconnected drills downwards.Compared to straight lease rotary drilling rig, rotary drilling rig is replaced to drill with drilling machine equipment, and
The case where drilling machine equipment is placed at the construction field (site), can either prevent construction from delaying appearance, can also reduce the work of producer
The disbursement about rotary drilling rig can be greatly reduced in Cheng Chengben.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (8)
1. a kind of drilling machine equipment of alternative small-sized rotary drilling rig, including drilling rod (7) and drill bit (8), it is characterised in that: also
Including rack (1)；
The rack (1) includes the bottom frame (102) and bottom frame that four steel columns (101) are fixed together the quadrangle to be formed
(102) four edges are fixedly connected there are two front column (103) and two oblique lateral columns (104)；Two front columns (103) are remote
One end from bottom frame (102) is provided with crossbeam (105)；
It further include driving motor (3) and rolling wheel (5)；
Driving motor (3) drives rolling wheel (5) rotation, is arranged with lifting rope (6) on rolling wheel (5), one end of lifting rope (6) is fixedly connected on
On rolling wheel (5), rolling wheel (5) carries out folding and unfolding to lifting rope (6) by positive and negative rotation；
The lifting rope (6) is overlapped on crossbeam (105), and the other end of the lifting rope (6) is fixedly connected on drilling rod (7).
2. the drilling machine equipment of alternative small-sized rotary drilling rig according to claim 1, it is characterised in that: the bottom frame
(102) installation plate (2) are fixedly connected on；
The driving motor (3) and the rolling wheel (5) are mounted on the installation plate (2).
3. the drilling machine equipment of alternative small-sized rotary drilling rig according to claim 1, it is characterised in that: the crossbeam
(105) the limitation pulley (9) of restricted lifting rope (6) position is fixedly connected on, the lifting rope (6) is in limitation pulley (9).
4. the drilling machine equipment of alternative small-sized rotary drilling rig according to claim 1, it is characterised in that: the drilling rod
(7) it is fixedly connected on limit base (10), the two sides of limit base (10) are set on two front columns (103).
5. the drilling machine equipment of alternative small-sized rotary drilling rig according to claim 1, it is characterised in that: the rack
(1) clump weight (11) for being suppressed rack (1), preventing rack (1) from toppling over is placed on；
The clump weight (11) is arranged on bottom frame (102), and bottom frame (102) is pushed down.
6. the drilling machine equipment of alternative small-sized rotary drilling rig according to claim 5, it is characterised in that: the bottom frame
(102) storage case (12) for containing clump weight (11) is installed on.
7. the drilling machine equipment of alternative small-sized rotary drilling rig according to claim 6, it is characterised in that: the receiving
The two sides protrusion of case (12) is provided with connecting plate (13), and the side of connecting plate (13) is set in the steel column (101) on bottom frame (102)
On, and be to be set in both ends to be connected separately on the steel column (101) of front column (103) and oblique lateral column (104).
8. the drilling machine equipment of alternative small-sized rotary drilling rig according to claim 1, it is characterised in that: the oblique side
Lift column (14) is provided on column (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920204368.8U CN209704475U (en) | 2019-02-15 | 2019-02-15 | A kind of drilling machine equipment of alternative small-sized rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920204368.8U CN209704475U (en) | 2019-02-15 | 2019-02-15 | A kind of drilling machine equipment of alternative small-sized rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209704475U true CN209704475U (en) | 2019-11-29 |
Family
ID=68641684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920204368.8U Active CN209704475U (en) | 2019-02-15 | 2019-02-15 | A kind of drilling machine equipment of alternative small-sized rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209704475U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021942A (en) * | 2020-01-03 | 2020-04-17 | 福建省建科工程技术有限公司 | Small-size hole equipment that draws suitable for finite space |
| CN111287670A (en) * | 2020-04-21 | 2020-06-16 | 南京尚泰工程机械制造有限公司 | An impact drill balancing device |
-
2019
- 2019-02-15 CN CN201920204368.8U patent/CN209704475U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021942A (en) * | 2020-01-03 | 2020-04-17 | 福建省建科工程技术有限公司 | Small-size hole equipment that draws suitable for finite space |
| CN111287670A (en) * | 2020-04-21 | 2020-06-16 | 南京尚泰工程机械制造有限公司 | An impact drill balancing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20090000218A1 (en) | Land rig | |
| CN209704475U (en) | A kind of drilling machine equipment of alternative small-sized rotary drilling rig | |
| CN102425372A (en) | Vibration Drilling Drilling Rig | |
| CN103526703A (en) | Multifunctional full-hydraulic self-propelled highway crash barrier piling, pulling and drilling all-in-one machine | |
| CN105502178A (en) | Telescopic boom crawler crane with rotary excavating function | |
| CN111254837B (en) | Construction method for building bridge by bridge crane fishing method | |
| CN209261485U (en) | A kind of truck-mounted drilling rig | |
| CN106284311B (en) | A kind of dry efficient construction technology of pore-forming cast-in-place concrete pile of rotary drilling rig | |
| CN102155168A (en) | Large triangular structure derricking mechanism for rotary drilling rig with auxiliary jacking mechanism | |
| CN109372430A (en) | A kind of truck-mounted drilling rig and drilling rod | |
| CN202325269U (en) | Double-hoist hydraulic elevating derrick | |
| CN203530886U (en) | Multifunctional full-hydraulic self-propelled piling pile-pulling drilling all-in-one machine for road anti-collision guardrail | |
| CN210396626U (en) | CFG drilling machine | |
| CN202731749U (en) | Full-hydraulic audio-frequency vibrating drill | |
| CN201598980U (en) | Full hydraulic multifunctional machine for drilling and excavation | |
| CN201943591U (en) | With auxiliary lifting mechanism for rotary drilling rig triangle structure luffing mechanism | |
| CN214993825U (en) | Stirring pilot hole pile driver that bridging pile driver was used is put | |
| CN102505920B (en) | Two-winch hydraulic lifting drill tower | |
| CN211446903U (en) | Drilling, guiding and hammering integrated machine in PHC (prestressed high-strength concrete) pipe pile | |
| CN202788610U (en) | Down-hole hammer sleeve follow-up drilling machine | |
| CN209924940U (en) | Equipment for manual hole digging pile in rock stratum | |
| CN202596574U (en) | Novel amplitude variable big triangle mechanism of rotary drilling rig | |
| CN103147437A (en) | Section steel soil cement mixing pile with longitudinal displacement mechanism | |
| CN107701104A (en) | A kind of vertical engineering investigation car and operational method | |
| CN201810201U (en) | Percussive multifunctional circulation rock drilling rig |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 1001-17, 10th Floor, Building 6, No. 5 Shengfang Road, Daxing District, Beijing, 102600 Patentee after: Nepton Polymer Group Co.,Ltd. Country or region after: China Address before: 102200 D06, unit D, building 22, Penglai apartment, Beiqijia Town, Changping District, Beijing Patentee before: ZHONGKE XINGCHUANG (BEIJING) TECHNOLOGY CO.,LTD. Country or region before: China |
|
| CP03 | Change of name, title or address |