CN107882030A - A kind of small movable piling machine - Google Patents
A kind of small movable piling machine Download PDFInfo
- Publication number
- CN107882030A CN107882030A CN201710986868.7A CN201710986868A CN107882030A CN 107882030 A CN107882030 A CN 107882030A CN 201710986868 A CN201710986868 A CN 201710986868A CN 107882030 A CN107882030 A CN 107882030A
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- Prior art keywords
- fixedly connected
- casing
- away
- piling machine
- block
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
- E02D7/10—Power-driven drivers with pressure-actuated hammer, i.e. the pressure fluid acting directly on the hammer structure
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
A kind of small movable piling machine, including casing, the bottom half is fixedly connected with damping compression-resistant device, the described one end of damping compression-resistant device away from casing is fixedly connected with universal wheel, the box bottom centre position offers U-shaped hole, the intracavity bottom of casing 1 is located at U-shaped hole both sides positional symmetry and is provided with guide pillar, the casing is provided with position induction device relative to the parallel inner chamber both sides centre position of guide pillar, position of the guide pillar outer surface at the top of cabinets cavity is fixedly connected with buffer unit, the casing offers chamber door on the side inwall away from clamping device, side of the cabinet wall away from chamber door is fixedly connected with clamping device, the casing top is fixedly connected with level meter, the present invention relates to field of mechanical technique.It is bulky to solve existing piling machine, it is cumbersome, if one man operation's piling machine beats the problems such as dynamics is small, and piling machine vibration is big, and operation comfort is poor, is easily damaged part, and unprotect measure is easily hurted sb.'s feelings.
Description
Technical field
The present invention relates to field of mechanical technique, specially a kind of small movable piling machine.
Background technology
In afforestation, in order to protect trees therein, flowers and plants etc., it usually needs set guardrail, guardrail needs to squeeze into soil
In, so as to reach certain intensity.Generally use is manually to be driven piles in the prior art, this mode operating efficiency compared with
It is low, and muscle power is expended, and the depth of guardrail implantation can not also ensure.In the prior art, also have and driven piles using piling machine
, but existing piling machine is typically more heavy, it is necessary to which the even more more people of two people could carry out normal operating, separately during work
Outside, the independent source of the gas of this piling machine needs, the installation and carrying of source of the gas are all very inconvenient.And existing one man operation's piling machine
Have the disadvantage that：During work, in timber plug-in-sleeve, when piston pushes, the expansive force of the gas in cylinder is converted to peening hammer
Thrust, because top and the peening hammer of timber offset, thus the thrust of peening hammer and itself downward inertia can not be released fully
Put, thus the hitting dynamics of peening hammer is smaller；Without buffer unit in cylinder, thus air-flow caused by gas be easily damaged piston with
Seal between cylinder, peening hammer and cylinder；Without buffer unit at peening hammer, thus piling machine can produce larger vibrations,
Operation comfort is poor, and is easily damaged part；Without damping device on handle, thus when operator is operated by handle, operation
Comfortableness it is poor.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of small movable piling machine, solves existing piling machine
Bulky, cumbersome, if one man operation's piling machine is beaten, dynamics is small, and piling machine vibration is big, and operation comfort is poor, easily damage
Bad part, and the problems such as unprotect measure is easily hurted sb.'s feelings.
To realize object above, the present invention is achieved by the following technical programs：A kind of small movable piling machine, bag
Casing is included, the bottom half is fixedly connected with damping compression-resistant device, and the described one end of damping compression-resistant device away from casing is fixed
Universal wheel is connected with, the box bottom centre position offers U-shaped hole, and the cabinets cavity bottom is located at U-shaped hole both sides position
To put and be symmetrically arranged with guide pillar, the casing is provided with position induction device relative to the parallel inner chamber both sides centre position of guide pillar,
The guide pillar outer surface slidably connects weight, and position of the guide pillar outer surface at the top of cabinets cavity is fixedly connected with slow
Flushing device, the buffer unit are located above weight, and the one end of the weight away from cabinets cavity bottom is fixedly connected with hydraulic pressure
Device, side of the hydraulic means away from weight at the top of cabinets cavity with being fixedly connected, and the casing is away from clamping device
Offer chamber door on the inwall of side, side of the cabinet wall away from chamber door is fixedly connected with clamping device, outside the casing
Wall, which is located above chamber door, is fixedly connected with control panel, and the casing top is fixedly connected with level meter；
The clamping device includes fixed block, and the fixed block inner chamber is fixedly connected with motor, and the motor is away from fixed
One end of block is rotatably connected to screw mandrel by shaft coupling, and the screw mandrel outer surface slidably connects thread slider, and the screw thread is slided
Block outer surface side is fixedly connected with first connecting rod, and the one end of the screw mandrel away from motor is rotatably connected to thing block, the thing block
Side is fixedly connected with the first supporting rod, and the thing block and the first supporting rod ipsilateral rotation are connected with second connecting rod, and described second
For connecting rod between the first supporting rod and thing block, the described one end of first supporting rod away from thing block is fixedly connected with the first clamping
Block, the side of first grip block away from the first supporting rod are fixedly connected with the first rubber blanket, the first connecting rod and second
The one end of connecting rod away from screw mandrel is connected with the second supporting rod by axis of rotation, and the described one end of second supporting rod away from rotating shaft is consolidated
Surely the second grip block is connected with, the described one end of second grip block away from the second supporting rod is fixedly connected with the second rubber blanket.
Preferably, the universal wheel side is fixedly connected with the first supporting plate, the first supporting plate centre position screw thread
Threaded rod is connected with, the threaded rod upper end offers circular hole, and the circular hole interior surface slidably connects elastic bar, the screw thread
Bar lower end is fixedly connected with supporting pad, and the universal wheel has four.
Preferably, the damping compression-resistant device includes bottom plate, and the bottom base plate is provided with air-vent, the bottom base plate
Inner side is fixedly connected with bottom bar, and the bottom bar outer sheath is provided with compression spring, and the bottom bar top slidably connects movable block, institute
State and be fixedly connected with the second supporting plate at the top of movable block, the second supporting plate bottom opens up fluted and groove and bottom bar upper end
Gap coordinates, and buffer spring is fixedly connected with the top of second supporting plate, buffering is fixedly connected with the top of the buffer spring
Post, the bumper post top are fixedly connected with top plate.
Preferably, the chamber door includes two symmetrical door-plates, and the door-plate passes through hinge close to the side of casing
It is connected with body pivot, side of the door-plate away from hinge is provided with door lock.
Preferably, the cabinet exterior has been fixedly connected with push rod perpendicular to the both sides of chamber door, and the push rod is away from casing
One end be fixedly connected with handle.
Preferably, the side of the thing block away from the first supporting rod is fixedly connected by the 3rd support bar with casing.
Preferably, the handle outer surface is arranged with rubber antiskid pad.
Preferably, the weight tup is arranged to ball-type.
Preferably, the one end of the guide pillar away from cabinets cavity bottom at the top of cabinets cavity with being fixedly connected.
Preferably, the hydraulic means is provided with protection rubber close to the side of weight.
Beneficial effect
The invention provides a kind of small movable piling machine.Possesses following beneficial effect：Fixed and connected by bottom half
Damping compression-resistant device is connected to, plays damping compression-resistant, stress too big damage machine when preventing work, and prevent vibrations from making machine inclined
From the one end of damping compression-resistant device away from casing is fixedly connected with universal wheel, easy to remove, saving muscle power, among box bottom
Position offers U-shaped hole, is easy to pass in and out timber, and cabinets cavity bottom is located at U-shaped hole both sides positional symmetry and is provided with guide pillar, guides
Weight drop direction, position of the guide pillar outer surface at the top of cabinets cavity are fixedly connected with buffer unit, prevent weight resilience
When impulsive force it is too big, damage machine, casing offers chamber door on the side inwall away from clamping device, be easy to feeding, repairs, case
Internal side of the wall away from chamber door is fixedly connected with clamping device, fixes timber, and cabinet exterior is solid perpendicular to the both sides of chamber door
Surely push rod is connected with, is easy to promote, the one end of push rod away from casing is fixedly connected with handle, and hydraulic means is close to the side of weight
It is provided with protection rubber.Hydraulic means is protected not damaged by weight screen resilience.
Brief description of the drawings
Fig. 1 is agent structure schematic diagram of the present invention；
Fig. 2 is door structure schematic diagram of the present invention；
Fig. 3 is clamping device structural representation of the present invention；
Fig. 4 is damping compression-resistant apparatus structure schematic diagram of the present invention；
Fig. 5 is Universal wheel structure schematic diagram of the present invention.
In figure：1- casings, 2- damping compression-resistants device, 201- bottom plates, 202- air-vents, 203- bottom bars, 204- compression springs,
205- movable blocks, the supporting plates of 206- second, 207- grooves, 208- buffer springs, 209- bumper posts, 210- top plates, 3- universal wheels,
The supporting plates of 31- first, 32- threaded rods, 33- circular holes, the elastic bars of 34-, 35- supporting pads, 4- circular ports, 5- guide pillars, 6- weights, 7-
Buffer unit, 8- hydraulic means, 9- chamber doors, 91- door-plates, 92- hinges, 93- door locks, 10- clamping devices, 1001- fixed blocks,
1002- motors, 1003- screw mandrels, 1004- thread sliders, 1005- first connecting rods, 1006- things block, the supporting rods of 1007- first,
1008- second connecting rods, the grip blocks of 1009- first, the rubber blankets of 1010- first, the supporting rods of 1011- second, 1012- second are clamped
Block, the rubber blankets of 1013- second, 11- control panels, 12- push rods, 13- handles, the support bars of 14- the 3rd, 15- rubber antiskids pad,
16- protections rubber, 17- level meters, 18- position induction devices.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1-5 are referred to, the present invention provides a kind of technical scheme：A kind of small movable piling machine, including casing 1, case
The bottom of body 1 is fixedly connected with damping compression-resistant device 2, carries out damping compression-resistant, prevents from impacting excessive, deviates machine, damping compression-resistant
The one end of device 2 away from casing 1 is fixedly connected with universal wheel 3, is easy to promote, and the bottom plate centre position of casing 1 offers U-shaped hole 4,
For the discrepancy of timber, the intracavity bottom of casing 1 is located at the U-shaped both sides positional symmetry of hole 4 and is provided with guide pillar 5, specification weight motion rail
Mark, prevent from pounding partially, casing 1 is provided with position induction device 18 relative to the parallel inner chamber both sides centre position of guide pillar 5, enters line position
Measurement is put, the outer surface of guide pillar 5 slidably connects weight 6, and the outer surface of guide pillar 5 is fixedly connected close to the position of the inner cavity top of casing 1
There is buffer unit 7, prevent that weight resilience strength is too quickly, damage machine, buffer unit 7 is located at the top of weight 6, and weight 6 is away from case
One end of the intracavity bottom of body 1 is fixedly connected with hydraulic means 8, there is provided impulsive force, side and case of the hydraulic means 8 away from weight 6
The inner cavity top of body 1 is fixedly connected, and casing 1 offers chamber door 9 on the side inwall away from clamping device, is easy to timber to pass in and out, just
In maintenance, side of the inwall of casing 1 away from chamber door 9 is fixedly connected with clamping device 10, fixed timber position and perpendicularity, prevents
Timber deviates, and machine is dallied, and defective component, the top that the outer wall of casing 1 is located at chamber door 9 is fixedly connected with control panel 11, control
All are made, the top of casing 1 is fixedly connected with level meter 17, leveling, and clamping device 10 includes fixed block 1001, in fixed block 1001
Chamber is fixedly connected with motor 1002, there is provided power, the one end of motor 1002 away from fixed block 1001 are rotatablely connected by shaft coupling
There is screw mandrel 1003, the outer surface of screw mandrel 1003 slidably connects thread slider 1004, and the outer surface side of thread slider 1004, which is fixed, to be connected
First connecting rod 1005 is connected to, the one end of screw mandrel 1003 away from motor 1002 is rotatably connected to thing block 1006, and the side of thing block 1006 is consolidated
Surely the first supporting rod 1007 is connected with, the ipsilateral rotation of 1006 and first supporting rod of thing block 1007 is connected with second connecting rod 1008, the
Two connecting rods 1008 between the first supporting rod 1007 and thing block 1006, consolidate by first one end of supporting rod 1007 away from thing block 1006
Surely the first grip block 1009 is connected with, side of first grip block 1009 away from the first supporting rod 1007 is fixedly connected with the first rubber
Rubber cushion 1010, there is provided enough frictional force, the one end of first connecting rod 1005 and second connecting rod 1008 away from screw mandrel 1003 is by turning
Axle is rotatably connected to the second supporting rod 1011, and second one end of supporting rod 1011 away from rotating shaft is fixedly connected with the second grip block
1012, the one end of the second grip block 1012 away from the second supporting rod 1011 is fixedly connected with the second rubber blanket 1013, universal wheel 3 one
Side is fixedly connected with the first supporting plate 31, and the centre position of the first supporting plate 31 is threaded with threaded rod 32, the upper end of threaded rod 32
Circular hole 33 is offered, the inner surface of circular hole 33 slidably connects elastic bar 34, is easy to rotate threaded rod, fixes machine, threaded rod
32 lower ends are fixedly connected with supporting pad 35, and universal wheel 3 is provided with four, and damping compression-resistant device 2 includes bottom plate 201, the bottom of bottom plate 201
Portion is provided with air-vent 202, and the bottom inside of bottom plate 201 is fixedly connected with bottom bar 203, and the outer sheath of bottom bar 203 is provided with compression spring
204, the top of bottom bar 203 slidably connects movable block 205, and the top of movable block 205 is fixedly connected with the second supporting plate 206, and second
The bottom of supporting plate 206 opens up fluted 207 and groove 207 coordinates with the upper gap of bottom bar 203, and the top of the second supporting plate 206 is solid
Surely buffer spring 208 is connected with, the top of buffer spring 208 is fixedly connected with bumper post 209, and the top of bumper post 209 is fixedly connected
There is top plate 210, chamber door 9 includes two symmetrical door-plates 91, and door-plate 91 passes through hinge 92 and casing close to the side of casing 1
1 rotation connection, side of the door-plate 91 away from hinge 92 are provided with door lock 93, and the outer wall vertical of casing 1 is fixed in the both sides of chamber door 9
Push rod 12 is connected with, the one end of push rod 12 away from casing 1 is fixedly connected with handle 13, and thing block 1006 is away from the first supporting rod 1007
Side be fixedly connected by the 3rd support bar 14 with casing 1, the outer surface of handle 13 is arranged with rubber antiskid pad 15, anti-skidding, weight
Hammer 6 tups into shape and be arranged to ball-type, disperse stress, make machine can long-term work, guide pillar 5 one end and case away from the intracavity bottom of casing 1
The inner cavity top of body 1 is fixedly connected, and hydraulic means 8 is provided with protection rubber 16 close to the side of weight 6, prevents weight resilience from damaging
Hydraulic means.
In use, machine is pushed into working region, all data are inputted by control panel 11, open chamber door afterwards
9, timber is sent into, fixed by clamping device 10, shuts chamber door 9, the support feet of universal wheel 3 is fixed, and pass through water
The leveling of level 17, starting hydraulic means 8 makes the rapid decrease of weight 6, hammers timber, and now motor 1002 operates automatically, gradually pine
Timber is opened, quickly hammering by position induction device 18 up to sensing that timber reaches defined position for weight 6, and hydraulic means 8 is certainly
It is dynamic to be stopped, support feet is packed up, opens chamber door 9, by handle 13, promotes machine to be moved to next target, repeats above-mentioned behaviour
Make, until work is completed.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions.By sentence " including one ... the key element limited, it is not excluded that
Other identical element in the process including the key element, method, article or equipment also be present ".
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of small movable piling machine, including casing (1), it is characterised in that：Casing (1) bottom, which is fixedly connected with, to be subtracted
Anti pressure devices (2) are shaken, the one end of the damping compression-resistant device (2) away from casing (1) is fixedly connected with universal wheel (3), the case
Body (1) bottom plate centre position offers U-shaped hole (4), and casing (1) intracavity bottom is located at U-shaped hole (4) both sides positional symmetry and set
Guide pillar (5) is equipped with, the casing (1) is provided with position induction device relative to the parallel inner chamber both sides centre position of guide pillar (5)
(18), guide pillar (5) outer surface slidably connects weight (6), and guide pillar (5) outer surface is close to casing (1) inner cavity top
Position be fixedly connected with buffer unit (7), the buffer unit (7) is located above weight (6), and the weight (6) is away from case
One end of body (1) intracavity bottom is fixedly connected with hydraulic means (8), side and case of the hydraulic means (8) away from weight (6)
Body (1) inner cavity top is fixedly connected, and the casing (1) offers chamber door (9), the case on the side inwall away from clamping device
Side of body (1) inwall away from chamber door (9) is fixedly connected with clamping device (10), and casing (1) outer wall is located at chamber door (9)
Top is fixedly connected with control panel (11), and level meter (17) is fixedly connected with the top of the casing (1)；
The clamping device (10) includes fixed block (1001), and fixed block (1001) inner chamber is fixedly connected with motor
(1002), the one end of the motor (1002) away from fixed block (1001) is rotatably connected to screw mandrel (1003), institute by shaft coupling
State screw mandrel (1003) outer surface and slidably connect thread slider (1004), thread slider (1004) the outer surface side, which is fixed, to be connected
First connecting rod (1005) is connected to, the one end of the screw mandrel (1003) away from motor (1002) is rotatably connected to thing block (1006), institute
State thing block (1006) side and be fixedly connected with the first supporting rod (1007), the thing block (1006) is same with the first supporting rod (1007)
Side is rotatably connected to second connecting rod (1008), and the second connecting rod (1008) is located at the first supporting rod (1007) and thing block (1006)
Between, the one end of first supporting rod (1007) away from thing block (1006) is fixedly connected with the first grip block (1009), described
Side of first grip block (1009) away from the first supporting rod (1007) is fixedly connected with the first rubber blanket (1010), and described first
The one end of connecting rod (1005) and second connecting rod (1008) away from screw mandrel (1003) is connected with the second supporting rod by axis of rotation
(1011), the one end of second supporting rod (1011) away from rotating shaft is fixedly connected with the second grip block (1012), and described second
The one end of grip block (1012) away from the second supporting rod (1011) is fixedly connected with the second rubber blanket (1013).
A kind of 2. small movable piling machine according to claim 1, it is characterised in that：Universal wheel (3) side is solid
Surely the first supporting plate (31) is connected with, the first supporting plate (31) centre position is threaded with threaded rod (32), the spiral shell
Rasp bar (32) upper end offers circular hole (33), and circular hole (33) inner surface slidably connects elastic bar (34), the threaded rod
(32) lower end is fixedly connected with supporting pad (35), and the universal wheel (3) has four.
A kind of 3. small movable piling machine according to claim 1, it is characterised in that：The damping compression-resistant device (2)
Including bottom plate (201), bottom plate (201) bottom is provided with air-vent (202), and bottom plate (201) bottom inside, which is fixed, to be connected
Bottom bar (203) is connected to, bottom bar (203) outer sheath is provided with compression spring (204), and bottom bar (203) top is slidably connected
There is movable block (205), the second supporting plate (206), second supporting plate are fixedly connected with the top of the movable block (205)
(206) bottom opens up fluted (207) and groove (207) coordinates with bottom bar (203) upper gap, second supporting plate
(206) top is fixedly connected with buffer spring (208), and bumper post (209) is fixedly connected with the top of the buffer spring (208),
Top plate (210) is fixedly connected with the top of the bumper post (209).
A kind of 4. small movable piling machine according to claim 1, it is characterised in that：The chamber door (9) includes mutual
Symmetrical two door-plates (91), the door-plate (91) is rotated close to the side of casing (1) by hinge (92) and casing (1) to be connected
Connect, side of the door-plate (91) away from hinge (92) is provided with door lock (93).
A kind of 5. small movable piling machine according to claim 1, it is characterised in that：Casing (1) outer wall vertical
Push rod (12) is fixedly connected with the both sides of chamber door (9), the one end of the push rod (12) away from casing (1) is fixedly connected with handle
Hand (13).
A kind of 6. small movable piling machine according to claim 1, it is characterised in that：The thing block (1006) is away from the
The side of one supporting rod (1007) is fixedly connected by the 3rd support bar (14) with casing (1).
A kind of 7. small movable piling machine according to claim 5, it is characterised in that：Handle (13) the appearance surface cover
Provided with rubber antiskid pad (15).
A kind of 8. small movable piling machine according to claim 1, it is characterised in that：Weight (6) tup is set
For ball-type.
A kind of 9. small movable piling machine according to claim 1, it is characterised in that：The guide pillar (5) is away from casing
(1) one end of intracavity bottom is fixedly connected with casing (1) inner cavity top.
A kind of 10. small movable piling machine according to claim 1, it is characterised in that：The hydraulic means (8) is close
The side of weight (6) is provided with protection rubber (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710986868.7A CN107882030A (en) | 2017-10-20 | 2017-10-20 | A kind of small movable piling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710986868.7A CN107882030A (en) | 2017-10-20 | 2017-10-20 | A kind of small movable piling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107882030A true CN107882030A (en) | 2018-04-06 |
Family
ID=61781844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710986868.7A Withdrawn CN107882030A (en) | 2017-10-20 | 2017-10-20 | A kind of small movable piling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882030A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108838848A (en) * | 2018-07-19 | 2018-11-20 | 安徽天裕汽车零部件制造有限公司 | A kind of automobile metal accessory processing surface fine grinding device |
| CN111188337A (en) * | 2020-01-15 | 2020-05-22 | 广州京海科技有限公司 | A pile driver for noise pollution control of road construction |
| CN112343052A (en) * | 2020-10-14 | 2021-02-09 | 胡显昌 | Small-size pile equipment with shock-absorbing function |
-
2017
- 2017-10-20 CN CN201710986868.7A patent/CN107882030A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108838848A (en) * | 2018-07-19 | 2018-11-20 | 安徽天裕汽车零部件制造有限公司 | A kind of automobile metal accessory processing surface fine grinding device |
| CN111188337A (en) * | 2020-01-15 | 2020-05-22 | 广州京海科技有限公司 | A pile driver for noise pollution control of road construction |
| CN112343052A (en) * | 2020-10-14 | 2021-02-09 | 胡显昌 | Small-size pile equipment with shock-absorbing function |
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| 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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180406 |