CN108730686A - One kind can raised pedestal used for oil extractor - Google Patents
One kind can raised pedestal used for oil extractor Download PDFInfo
- Publication number
- CN108730686A CN108730686A CN201810342779.3A CN201810342779A CN108730686A CN 108730686 A CN108730686 A CN 108730686A CN 201810342779 A CN201810342779 A CN 201810342779A CN 108730686 A CN108730686 A CN 108730686A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- shell
- support leg
- oil extractor
- ratch
- 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.)
- Pending
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000005086 pumping Methods 0.000 abstract description 21
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M5/00—Engine beds, i.e. means for supporting engines or machines on foundations
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
-
- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
It can raised pedestal used for oil extractor the invention discloses one kind, including shell, the upper surface of the inner walls is fixedly connected there are two fixed link, the bottom end of the fixed link is fixedly connected with the upper surface of motor body, the output shaft of motor is fixedly connected with gear, gear and ratch engagement, the right side of ratch is slidably connected at by the first sliding block in the first sliding groove that the left side of support plate opens up, the lower surface of ratch is fixedly connected with support leg upper surface, the right side of support leg offers several card slots, and the bottom end of support leg passes through the through-hole that opens up of lower surface of inner walls and extends to the outside of shell, the left and right sides of inner walls have been fixedly connected with the first electric pushrod.This can raised pedestal used for oil extractor, to prevent tidewater or flood to flood pumping unit bottom end shell, pumping-unit motor damage even the case where scrapping is caused, so that pumping unit normal operation, has ensured oil production rate to realize moving upwards for shell.
Description
Technical field
The present invention relates to motor heightening device technical fields, and specially one kind can raised pedestal used for oil extractor.
Background technology
Pumping unit is a kind of machinery equipment for exploiting oil, is commonly called as " kowtowing machine ".Pumping unit be in rod pumping system most
Main lifting equipment.According to whether there is walking beam, beam pumping unit can be divided into and without beam pumping unit.
Pumping unit mostly outdoor work in the wild, working environment is severe, and the general normal time is unattended, supervises.Pumping unit
Substructure height is fixed, and cannot be increased.In flood tide and generation flood, once tidewater or flood flooded oil pumping unit base,
It will result in pumping-unit motor damage or even scrap, shutdown of pumping machine influences oil production rate.
Invention content
（One）The technical issues of solution
In view of the deficiencies of the prior art, the present invention provides one kind can raised pedestal used for oil extractor, solve pumping unit and exist more
Open field works, and working environment is severe, and the general normal time is unattended, supervises.Oil pumping unit base height is fixed, and cannot
It increases.In flood tide and generation flood, once tidewater or flood flooded oil pumping unit base, pumping-unit motor damage will result in
The problem of badly even scrapping, shutdown of pumping machine, influencing oil production rate.
（Two）Technical solution
To achieve the above object, the present invention provides the following technical solutions：One kind can raised pedestal used for oil extractor, including shell,
The upper surface of the inner walls is fixedly connected there are two fixed link, and the bottom end of the fixed link and the upper surface of motor body are solid
The output shaft of fixed connection, the motor is fixedly connected with gear, the gear and ratch engagement, and the right side of the ratch passes through
First sliding block is slidably connected in the first sliding groove that the left side of support plate opens up, lower surface and the support leg upper table of the ratch
Face is fixedly connected, and the right side of the support leg offers several card slots, and the bottom end of support leg passes through under inner walls
Through-hole that surface opens up and the outside for extending to shell, it is electronic that the left and right sides of the inner walls have been fixedly connected with first
Push rod, and the opposite end of two electric pushrods is fixedly connected with there are two kelly, the lower surface of the inner walls is fixedly connected
There are two slide bar, the right side of the top end of sliding rod is fixedly connected with connecting rod, and the lower surface of the connecting rod is fixedly connected with
The outer surface of second electric pushrod, the slide bar is socketed with sliding sleeve, and the right side of the sliding sleeve is fixedly connected with pulley, the cunning
The upper surface of wheel is fixedly connected with the bottom end of the second electric pushrod, and the one end of the pulley far from sliding sleeve is slidably connected at crushing block
The skewed slot that opens up of inclined surface in, the lower surface of the crushing block is slidably connected at the lower surface of inner walls by the second sliding block
In the second sliding slot opened up, the crushing block is located at the left side of support leg.
Preferably, the shape of the support leg is rectangle, and the shape of the card slot and kelly is rectangle.
Preferably, the length of the through-hole is more than the length of support leg, and the width of through-hole is more than the width of support leg.
Preferably, the upper surface of the outer wall of the shell is provided with accumulator, and the upper surface of the accumulator is provided with control
Panel processed.
Preferably, the output end of the accumulator is electrically connected with the input terminal of control panel, the output of the control panel
End is electrically connected with the input terminal of motor, the first electric pushrod and the second electric pushrod respectively.
Preferably, the shape of the crushing block is triangle, and the length of crushing block is 20 centimetres.
（Three）Advantageous effect
The present invention provides one kind can raised pedestal used for oil extractor, have following advantageous effect：
（1）, this can raised pedestal used for oil extractor, by the collective effect of control panel, motor, gear, ratch and support leg,
Motor movement band moving gear rotates so that ratch, which moves downward, drives support leg to move downward, when support leg is moved downwardly to close
When right position is set, worker makes motor stop motion by operation and control panel, to realize moving upwards for shell, to anti-
The case where having stopped tidewater or flood flooded pumping unit bottom end shell, pumping-unit motor damage is caused even to scrap, so that taking out
Oil machine normal operation, has ensured oil production rate.
（2）, this can raised pedestal used for oil extractor, worker by operation and control panel make the first electric pushrod extend,
To which kelly is caught in a corresponding card slot, while worker makes the second electric pushrod stretch by operation and control panel
Long, pulley makes crushing block move right downwards, and the left side overlap joint of crushing block and support leg, worker passes through operation and control face again
Plate makes the second electric pushrod stop motion so that the fixation of support leg is more stablized, so that the oil pumping of housing upper surface
The fixation of machine is more stablized, and structure of the invention is compact, reasonable design, highly practical.
Description of the drawings
Fig. 1 is the cross-sectional view that the present invention faces；
Fig. 2 is the structural schematic diagram that the present invention overlooks.
In figure：1 shell, 2 fixed links, 3 motors, 4 gears, 5 ratch, 6 first sliding blocks, 7 the first sliding grooves, 8 support plates, 9
Support leg, 10 card slots, 11 through-holes, 12 first electric pushrods, 13 kellies, 14 slide bars, 15 connecting rods, 16 second electric pushrods, 17 are slided
Set, 18 pulleys, 19 skewed slots, 20 crushing blocks, 21 second sliding blocks, 22 second sliding slots, 23 accumulators, 24 control panels.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figs. 1-2, the present invention provides a kind of technical solution：One kind can raised pedestal used for oil extractor, including shell
1, the upper surface of 1 inner wall of shell is fixedly connected with that there are two fixed links 2, and the bottom end and the upper surface of 3 fuselage of motor of fixed link 2 are fixed
Connection, by the way that fixed link 2 is arranged so that the fuselage of motor 3 has obtained fixation, it is therefore prevented that the own rotation of 3 fuselage of motor, motor
3 output shaft is fixedly connected with gear 4, and gear 4 and ratch 5 engage, and the right side of ratch 5 is slidably connected by the first sliding block 6
In the first sliding groove 7 that the left side of support plate 8 opens up, pass through and the first sliding groove 7 and the first sliding block 6 be set so that ratch 5 to
Lower movement is more steady, and the lower surface of ratch 5 is fixedly connected with 9 upper surface of support leg, and the right side of support leg 9 offers several
A card slot 10, and the bottom end of support leg 9 passes through the through-hole 11 that opens up of lower surface of 1 inner wall of shell and extends to the outside of shell 1,
The length of through-hole 11 is more than the length of support leg 9, and the width of through-hole 11 is more than the width of support leg 9, by providing through-hole 11
Size, it is therefore prevented that the case where lower surface of support leg 9 and 1 inner wall of shell is damaged because of friction, the left and right sides of 1 inner wall of shell
Face has been fixedly connected with the first electric pushrod 12, and the opposite end of two electric pushrods is fixedly connected with there are two kelly 13, is propped up
The shape of support leg 9 is rectangle, and the shape of card slot 10 and kelly 13 is rectangle, passes through and card slot 10 and kelly 13 is arranged so that branch
The fixation of support leg 9 is more stablized, so that the fixation of the pumping unit of 1 upper surface of shell is more stablized, the following table of 1 inner wall of shell
Face is fixedly connected there are two slide bar 14, and the right side on 14 top of slide bar is fixedly connected with connecting rod 15, the lower surface of connecting rod 15
It is fixedly connected with the second electric pushrod 16, the outer surface of slide bar 14 is socketed with sliding sleeve 17, and the right side of sliding sleeve 17 is fixedly connected with
Pulley 18, the upper surface of pulley 18 are fixedly connected with the bottom end of the second electric pushrod 16, and the one end of pulley 18 far from sliding sleeve 17 is slided
In the skewed slot 19 that the dynamic inclined surface for being connected to crushing block 20 opens up, by the way that the second electric pushrod 16 is arranged so that pulley 18 is downward
Movement, so that the movement in skewed slot 19 of pulley 18, to which pulley 18 drives crushing block 20 to move right, under crushing block 20
Surface is slidably connected at by the second sliding block 21 in the second sliding slot 22 that the lower surface of 1 inner wall of shell opens up, and setting second is passed through
Sliding slot 22 so that the movement of the second sliding block 21 is more steady so that the movement of crushing block 20 to the right is more steady, crushing block 20
Shape is triangle, and the length of crushing block 20 is 20 centimetres, and crushing block 20 is located at the outer wall of the left shell 1 of support leg 9
Upper surface be provided with accumulator 23, the upper surface of accumulator 23 is provided with control panel 24, by be arranged control panel 24, make
It is more convenient to the manipulation of the working condition of motor 3, the first electric pushrod 12 and the second electric pushrod 16 to obtain worker, accumulator 23
Output end be electrically connected with the input terminal of control panel 24, the output end of control panel 24 respectively with motor 3, the first electric pushrod
12 and second electric pushrod 16 input terminal electrical connection.
In use, pumping-unit motor fixed placement, in the upper surface of shell 1, operation control panel 24 is so that motor 3
Work, so that gear 4 rotates, the rotation of gear 4 drives ratch 5 to move, and ratch 5, which moves downward, drives support leg 9 downward
Movement, when support leg 9 is moved downwardly to suitable position, worker makes 3 stop motion of motor, Gong Renzai by operation and control face
By operation and control panel 24 so that the first electric pushrod 12 extends, to which the first electric pushrod 12 drives kelly 13 to transport to the left
Dynamic, to which kelly 13 is caught in a corresponding card slot 10, worker is by operation and control panel 24 so that first electronic pushes away
12 stop motion of bar, while worker makes the second electric pushrod 16 extend by operation and control panel 24, the second electric pushrod 16
Band pulley 18 moves downward, and pulley 18 downwards so that crushing block 20 moves right, take by crushing block 20 and the left side of support leg 9
It connects, worker is again by operation and control panel 24 so that 16 stop motion of the second electric pushrod.
Can to sum up obtain, 1, this can raised pedestal used for oil extractor, pass through control panel 24, motor 3, gear 4,5 and of ratch
The collective effect of support leg 9, the movement band moving gear of motor 3 rotate so that and ratch 5, which moves downward, drives support leg 9 to move downward,
When support leg 9 is moved downwardly to suitable position, worker makes 3 stop motion of motor by operation and control panel 24, to real
Moving upwards for shell 1 is showed, to prevent tidewater or flood to flood pumping unit bottom end shell, pumping-unit motor has been caused to damage
The case where even scrapping, so that pumping unit normal operation, has ensured oil production rate.
2, this can raised pedestal used for oil extractor, worker by operation and control panel 24 so that the first electric pushrod 12 stretch
Long, to which kelly 13 is caught in a corresponding card slot 10, while worker makes the second electricity by operation and control panel 24
Dynamic push rod 16 extends, and pulley 18 is downwards so that crushing block 20 moves right, and crushing block 20 and the left side of support leg 9 overlap, work
People is again by operation and control panel 24 so that 16 stop motion of the second electric pushrod so that and the fixation of support leg 9 is more stablized, from
And so that the fixation of the pumping unit of 1 upper surface of shell is more stablized, and structure of the invention is compact, reasonable design, it is highly practical.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. one kind can raised pedestal used for oil extractor, including shell（1）, it is characterised in that：The shell（1）The upper surface of inner wall
Fixed link there are two being fixedly connected（2）, the fixed link（2）Bottom end and motor（3）The upper surface of fuselage is fixedly connected, described
Motor（3）Output shaft be fixedly connected with gear（4）, the gear（4）And ratch（5）Engagement, the ratch（5）Right side
Pass through the first sliding block（6）It is slidably connected at support plate（8）The first sliding groove that opens up of left side（7）It is interior, the ratch（5）Under
Surface and support leg（9）Upper surface is fixedly connected, the support leg（9）Right side offer several card slots（10）, and prop up
Support leg（9）Bottom end pass through shell（1）The through-hole that the lower surface of inner wall opens up（11）And extend to shell（1）Outside, it is described
Shell（1）The left and right sides of inner wall have been fixedly connected with the first electric pushrod（12）, and the opposite end of two electric pushrods is equal
Kelly there are two being fixedly connected（13）, the shell（1）The lower surface of inner wall is fixedly connected there are two slide bar（14）, the slide bar
（14）The right side on top is fixedly connected with connecting rod（15）, the connecting rod（15）To be fixedly connected with second electronic for lower surface
Push rod（16）, the slide bar（14）Outer surface be socketed with sliding sleeve（17）, the sliding sleeve（17）Right side be fixedly connected with cunning
Wheel（18）, the pulley（18）Upper surface and the second electric pushrod（16）Bottom end be fixedly connected, the pulley（18）It is separate
Sliding sleeve（17）One end be slidably connected at crushing block（20）The skewed slot that opens up of inclined surface（19）It is interior, the crushing block（20）Under
Surface passes through the second sliding block（21）It is slidably connected at shell（1）The second sliding slot that the lower surface of inner wall opens up（22）It is interior, it is described to squeeze
Briquetting（20）Positioned at support leg（9）Left side.
2. one kind according to claim 1 can raised pedestal used for oil extractor, it is characterised in that：The support leg（9）'s
Shape is rectangle, the card slot（10）And kelly（13）Shape be rectangle.
3. one kind according to claim 1 can raised pedestal used for oil extractor, it is characterised in that：The through-hole（11）Length
Degree is more than support leg（9）Length, and through-hole（11）Width be more than support leg（9）Width.
4. one kind according to claim 1 can raised pedestal used for oil extractor, it is characterised in that：The shell（1）It is outer
The upper surface of wall is provided with accumulator（23）, the accumulator（23）Upper surface be provided with control panel（24）.
5. one kind according to claim 1 can raised pedestal used for oil extractor, it is characterised in that：The accumulator（23）'s
Output end and control panel（24）Input terminal electrical connection, the control panel（24）Output end respectively with motor（3）, first
Electric pushrod（12）With the second electric pushrod（16）Input terminal electrical connection.
6. one kind according to claim 1 can raised pedestal used for oil extractor, it is characterised in that：The crushing block（20）'s
Shape is triangle, and crushing block（20）Length be 20 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810342779.3A CN108730686A (en) | 2018-04-17 | 2018-04-17 | One kind can raised pedestal used for oil extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810342779.3A CN108730686A (en) | 2018-04-17 | 2018-04-17 | One kind can raised pedestal used for oil extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108730686A true CN108730686A (en) | 2018-11-02 |
Family
ID=63938965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810342779.3A Pending CN108730686A (en) | 2018-04-17 | 2018-04-17 | One kind can raised pedestal used for oil extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108730686A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836106A (en) * | 2019-12-12 | 2020-02-25 | 魏治华 | Device for preventing oil pumping machine base from inclining |
| WO2021186402A1 (en) * | 2020-03-20 | 2021-09-23 | Edwards Vacuum Llc | A conversion kit for a support frame, a support frame and an integrated vacuum system mounted in a support frame |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206268746U (en) * | 2016-11-17 | 2017-06-20 | 胡旭 | A kind of computer display lowering or hoisting gear |
| CN107695700A (en) * | 2017-12-07 | 2018-02-16 | 李明科 | A kind of base for being easy to machine tool movement |
| CN107769029A (en) * | 2017-12-04 | 2018-03-06 | 成都麟成科技有限公司 | A kind of road construction temporary distribution box |
| CN107830330A (en) * | 2017-12-03 | 2018-03-23 | 成都锦悦智造科技有限公司 | A kind of face recognition device of adjustable-angle |
| CN107856968A (en) * | 2017-11-15 | 2018-03-30 | 盱眙县鹏程铜业有限公司 | A kind of ammeter tote box for being easy to take out ammeter |
-
2018
- 2018-04-17 CN CN201810342779.3A patent/CN108730686A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206268746U (en) * | 2016-11-17 | 2017-06-20 | 胡旭 | A kind of computer display lowering or hoisting gear |
| CN107856968A (en) * | 2017-11-15 | 2018-03-30 | 盱眙县鹏程铜业有限公司 | A kind of ammeter tote box for being easy to take out ammeter |
| CN107830330A (en) * | 2017-12-03 | 2018-03-23 | 成都锦悦智造科技有限公司 | A kind of face recognition device of adjustable-angle |
| CN107769029A (en) * | 2017-12-04 | 2018-03-06 | 成都麟成科技有限公司 | A kind of road construction temporary distribution box |
| CN107695700A (en) * | 2017-12-07 | 2018-02-16 | 李明科 | A kind of base for being easy to machine tool movement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836106A (en) * | 2019-12-12 | 2020-02-25 | 魏治华 | Device for preventing oil pumping machine base from inclining |
| WO2021186402A1 (en) * | 2020-03-20 | 2021-09-23 | Edwards Vacuum Llc | A conversion kit for a support frame, a support frame and an integrated vacuum system mounted in a support frame |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107379150A (en) | A kind of groove at side surface device of cylindrical timber | |
| CN107978979A (en) | A kind of interim power distribution cabinet easy to fixation | |
| CN108730686A (en) | One kind can raised pedestal used for oil extractor | |
| CN207320615U (en) | A kind of forceful electric power power distribution cabinet for being easy to safeguard inside | |
| CN107812775A (en) | Iron pipe flatting apparatus are used in a kind of hardware production | |
| CN107695700B (en) | A kind of pedestal convenient for machine tool movement | |
| CN109262598A (en) | A kind of robot gripper rack that stability is good | |
| CN209223915U (en) | A kind of motor frock clamp | |
| CN109356032A (en) | A kind of combined type bridge pier assembling work platform | |
| CN108206475A (en) | A kind of vibration-damping radiating method of power distribution cabinet | |
| CN208002522U (en) | A kind of portable power equipment displaying device | |
| CN209170161U (en) | A kind of asynchronous machine produces station-service apparatus for examination and repair | |
| CN108001502A (en) | Transportation resources after prepared by a kind of lubricating oil | |
| CN209831582U (en) | Workbench for engine production and assembly | |
| CN107645838A (en) | A kind of circuit board processing has with contraposition smelting | |
| CN210713967U (en) | Sound insulation device for building engineering | |
| CN207483263U (en) | One kind can multi-faceted fixed city high rise building construction lifting gear | |
| CN209047770U (en) | Showcase is used in innovation undertaking publicity | |
| CN110487624A (en) | A kind of new material rigidity detection device | |
| CN207259075U (en) | A kind of efficient building material lifting gear | |
| CN108340953A (en) | A kind of building template production transfer device | |
| CN108039663A (en) | It is a kind of convenient to overhaul interim to use power distribution cabinet | |
| CN109577308A (en) | A kind of rammer compacter easy to remove | |
| CN209368678U (en) | A kind of combined type bridge pier assembling work platform | |
| CN207228748U (en) | A kind of power tower with bird dispelling function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181102 |
|
| WD01 | Invention patent application deemed withdrawn after publication |