CN209040121U - A kind of hydraulic pile driver piling mechanism - Google Patents
A kind of hydraulic pile driver piling mechanism Download PDFInfo
- Publication number
- CN209040121U CN209040121U CN201821340613.XU CN201821340613U CN209040121U CN 209040121 U CN209040121 U CN 209040121U CN 201821340613 U CN201821340613 U CN 201821340613U CN 209040121 U CN209040121 U CN 209040121U
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- China
- Prior art keywords
- fixedly installed
- top surface
- car body
- control cabinet
- screw thread
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to piling machine equipment technical fields, and disclose a kind of hydraulic pile driver piling mechanism, including car body, the top surface of the car body is fixedly installed with diesel engine, the top surface of the car body is fixedly installed with the hydraulic pump positioned at the diesel engine back side, the top surface of the car body is fixedly installed with the control cabinet on the left of diesel engine, and the left side movable sleeve of the control box cavity is connected to forward screw thread bar.Hydraulic pile driver piling mechanism, by rotating adjusting rod, driving bevel gear is rotated by driven wheel of differential with elevating screw thread bar, so that lifter plate can move up, passes through the cooperation of graduation mark and arrow, the distance for enabling worker to accurately control lifter plate apart from ground, cooperate positioning sliding block, limits the height of pile hammer piling, flush the guardrail on injection ground, the workload for reducing worker improves the practicability of hydraulic pile driver piling mechanism.
Description
Technical field
The utility model relates to piling machine equipment technical fields, specially a kind of hydraulic pile driver piling mechanism.
Background technique
Piling machine is can be divided into the piling machinery on stake injection stratum according to the power resources that pile monkey moves using impact force
It drops hammer, steam hammer, diesel hammer, hydraulic hammer etc., hydraulic hammer piling machine is that diesel engine drives, can be by stratum using oil liquid pressure as power
The adjustment of soil property difference is hydraulic, is driven piles with reaching impact force appropriate, is usually used in the piling of highway barrier, freeway guardrail
Construction.
But existing hydraulic pile driver does not have height limiter, guardrail is squeezed into ground by rule of thumb by worker, cannot precisely be controlled
The exposed height on earth's surface of guardrail processed needs the height of worker's manual correction guardrail, and do not have so that guardrail height is uneven
Have the device of nonfloating rail, need worker that will drive piles after guardrail righting, hydraulic hammer is easy to train off, cause guardrail deflected or
Person is bended, and the life safety of worker is endangered, therefore is needed to design and a kind of be beaten with height limiter and fixed the hydraulic of device of guardrail
Stake machine.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of hydraulic pile driver piling mechanism, has limit for height dress
The advantages that setting device fixed with guardrail, solving existing hydraulic pile driver does not have height limiter, and worker by rule of thumb makes guardrail
Enter ground, the exposed height on earth's surface of guardrail cannot be precisely controlled, so that guardrail height is uneven, needs worker's manual correction
The height of guardrail, and the not device of nonfloating rail need worker that will drive piles after guardrail righting, and hydraulic hammer is easy to beat
Partially, cause guardrail to be deflected or bended, endanger the problem of the life safety of worker.
(2) technical solution
For the purpose for realizing above-mentioned height limiter and the fixed device of guardrail, the utility model is provided the following technical solutions: one
Kind hydraulic pile driver piling mechanism, including car body, the top surface of the car body are fixedly installed with diesel engine, and the top surface of the car body is solid
Dingan County is equipped with the hydraulic pump positioned at the diesel engine back side, and the top surface of the car body is fixedly installed with the control on the left of diesel engine
The left side movable sleeve of case, the control box cavity is connected to forward screw thread bar, and the right end of the forward screw thread bar is fixedly installed with
Reverse screw rod, the top surface of the car body are fixedly installed with the servo motor on the right side of control cabinet, the forward screw thread bar and
The equal movable sleeve in the outside of reverse screw rod is connected to gripping block, and the inner wall of the control cabinet is fixedly installed with above gripping block
Partition, the inner wall movable sleeve of the control cabinet are connected to the adjusting rod above partition, and the outside of the adjusting rod is fixedly attached
There is driving bevel gear, the quantity of the driving bevel gear is two, and the left and right ends of the control cabinet top surface are fixedly installed with
Support arm, the top of the support arm are fixedly installed with support plate, and the bottom surface movable sleeve of the support plate is connected to positioned at support arm
Internal elevating screw thread bar, the bottom end of the elevating screw thread bar extends to the inside of control cabinet and fixing sleeve is connected to and driving cone tooth
Take turns the driven wheel of differential being meshed, the outside of the elevating screw thread bar and the top surface pivot bush unit of control cabinet, the elevating screw thread
The external screw-thread of bar is socketed with lifter plate, and it is sliding that the bottom surface of the support plate is fixedly installed with the positioning between two support arms
The bottom end of bar, the locating slide rod is fixedly connected through lifter plate and with the top surface of control cabinet, and the external of the locating slide rod lives
The dynamic positioning sliding block being socketed with above lifter plate, the front of the positioning sliding block is fixedly installed with pile hammer, the positioning
The back side of sliding block is movably installed with piling arm, and the other end of the piling arm is movably installed with connecting rod, the bottom of the connecting rod
End is flexibly connected with the top surface of car body, and the bottom surface of the piling arm is movably installed with hydraulic stem, the bottom end of the hydraulic stem and vehicle
The top surface of body is flexibly connected, and the front of the gripping block extends to the outside of control cabinet and is fixedly installed with clamping plate.
Preferably, the top surface of the car body is fixedly installed with motor housing compatible with servo motor, and motor housing is outer
Surface offers heat release hole, and the rotating wheel of the diesel engine is connect by transmission belt with hydraulic pump driving.
Preferably, the forward screw thread bar and reverse screw rod are symmetrical as symmetry axis using the center line of partition, and two
A gripping block is symmetrical as symmetry axis using the center line of partition.
Preferably, the top surface of the control cabinet offers concave groove, and the internal activity of concave groove is equipped with ball, described
The outside of elevating screw thread bar has been fixedly attached limit plate, and the bottom surface of limit plate offers arc groove compatible with ball.
Preferably, the both ends of the lifter plate extend through two close sides of two support arms, and two support arms
Two close sides offer loose slot compatible with lifter plate.
Preferably, the front of the support arm is equipped with graduation mark, and the front of lifter plate is equipped with compatible with graduation mark
The top surface of arrow, the lifter plate is fixedly installed with cushion.
(3) beneficial effect
Compared with prior art, the utility model provides a kind of hydraulic pile driver piling mechanism, has following beneficial to effect
Fruit:
1, hydraulic pile driver mechanism of driving piles by rotating adjusting rod enables driving bevel gear by from mantle tooth
Wheel is rotated with elevating screw thread bar, so that lifter plate can move up, by the cooperation of graduation mark and arrow, is made
Distance of the lifter plate apart from ground can be accurately controlled by obtaining worker, cooperate positioning sliding block, limit the height of pile hammer piling, most
The guardrail on injection ground is flushed, the workload of worker is reduced, improves the practical of hydraulic pile driver piling mechanism
Property.
2, hydraulic pile driver piling mechanism provides a kinetic energy by servo motor for reverse screw rod, so that instead
It can be rotated to threaded rod with forward screw thread bar, by the cooperation of reverse screw rod and forward screw thread bar, so that two clampings
Block can relatively move, so that two clamping plates can be relatively moved and be fixed guardrail is stable, avoid worker
Manual righting guardrail is driven piles, and is easy to train off, and guardrail is caused to be deflected or bended, and dangerous problem is caused to worker, is mentioned
The high practicability of hydraulic pile driver piling mechanism.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is partial structurtes left view schematic diagram in Fig. 1；
Fig. 3 is the schematic diagram of internal structure of Fig. 2；
Fig. 4 is the vertical view schematic diagram of internal structure of control cabinet in Fig. 1.
In figure: 1, car body；2, diesel engine；3, hydraulic pump；4, control cabinet；5, forward screw thread bar；6, reverse screw rod；7, it watches
Take motor；8, gripping block；9, motor housing；10, partition；11, adjusting rod；12, driving bevel gear；13, support arm；14, support plate；
15, elevating screw thread bar；16, lifter plate；17, locating slide rod；18, positioning sliding block；19, pile hammer；20, piling arm；21, it connects
Bar；22, hydraulic stem；23, driven wheel of differential；24, clamping plate.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-4, a kind of hydraulic pile driver is driven piles mechanism, including car body 1, the top surface of car body 1 be fixedly installed with
The compatible motor housing 9 of servo motor 7, and the outer surface of motor housing 9 offers heat release hole, the rotating wheel of diesel engine 2 passes through biography
Dynamic band is sequentially connected with hydraulic pump 3, using motor housing 9, damages so that servo motor 7 naked will not be exposed on the external to worker,
Heat release hole is utilized again, and the heat that the operation of servo motor 7 is generated sheds in time, improves the hydraulic pile driver piling machine
The practicability of structure, the top surface of car body 1 are fixedly installed with diesel engine 2, and the model ZS1100 of diesel engine 2, the top surface of car body 1 is fixed
Hydraulic pump 3 positioned at 2 back side of diesel engine is installed, the model K3V1400 of hydraulic pump 3, the top surface of car body 1 is fixedly installed with position
Control cabinet 4 in 2 left side of diesel engine, the top surface of control cabinet 4 offers concave groove, and the internal activity of concave groove is equipped with rolling
Pearl, the outside of elevating screw thread bar 15 has been fixedly attached limit plate, and the bottom surface of limit plate offers arc compatible with ball
Slot, so that elevating screw thread bar 15 will not move down, and utilize the cooperation of concave groove, ball and arc groove, is subtracted using limit plate
Frictional force between small 4 top surface of bottom surface and control cabinet of limit plate facilitates the height that worker adjusts lifter plate 16, improves
The practicability of hydraulic pile driver piling mechanism, the left side movable sleeve of 4 inner cavity of control cabinet are connected to forward screw thread bar 5, positive spiral shell
It is pair that the right end of rasp bar 5, which is fixedly installed with reverse screw rod 6, forward screw thread bar 5 and reverse screw rod 6 with the center line of partition 10,
Claim axial symmetry distribution, and two gripping blocks 8 are symmetrical as symmetry axis using the center line of partition 10, using two gripping blocks 8 with
The center line of partition 10 is the symmetrical setting of symmetry axis, so that guardrail, which is clamped when plate 24 is fixed, is located just at pile hammer
19 underface avoids pile hammer 19 and trains off, guardrail is caused to be deflected or bended, and dangerous problem is caused to worker, is mentioned
The high practicability of hydraulic pile driver piling mechanism, the top surface of car body 1 are fixedly installed with the servo electricity positioned at 4 right side of control cabinet
Machine 7, the model Y80M2-2 of servo motor 7, the equal movable sleeve in the outside of forward screw thread bar 5 and reverse screw rod 6 are connected to gripping block
8, the inner wall of control cabinet 4 is fixedly installed with the partition 10 above gripping block 8, and the inner wall movable sleeve of control cabinet 4, which is connected to, to be located at
The adjusting rod 11 of 10 top of partition, the left end of adjusting rod 11 extends to the outside of control cabinet 4 and is fixedly installed with rotating disk, and adjusts
The outside of pole 11 and the left side pivot bush unit of control cabinet 4 facilitate worker and adjust lifter plate 16 apart from ground using rotating disk
The height in face, improves the practicability of hydraulic pile driver piling mechanism, and the external fixing sleeve of adjusting rod 11 is connected to driving cone tooth
Wheel 12, the quantity of driving bevel gear 12 are two, and the left and right ends of 4 top surface of control cabinet are fixedly installed with support arm 13, support
The front of arm 13 is equipped with graduation mark, and the front of lifter plate 16 is equipped with arrow compatible with graduation mark, lifter plate 16
Top surface is fixedly installed with cushion, using the cooperation of graduation mark and arrow, worker is enabled to accurately control lifter plate 16
Distance apart from ground to be precisely controlled the exposed height on earth's surface of guardrail, and utilizes cushion, reduces lifter plate
Impact force between 16 and positioning sliding block 18 improves the practicability of hydraulic pile driver piling mechanism, the top of support arm 13
It is fixedly installed with support plate 14, the bottom surface movable sleeve of support plate 14 is connected to the elevating screw thread bar 15 inside support arm 13, rises
The bottom end of drop threaded rod 15 extends to the inside of control cabinet 4 and fixing sleeve is connected to the slave mantle tooth being meshed with driving bevel gear 12
Wheel 23, the outside of elevating screw thread bar 15 and the top surface pivot bush unit of control cabinet 4, the external screw-thread of elevating screw thread bar 15 are socketed with liter
Plate 16 drops, and the both ends of lifter plate 16 extend through two close sides of two support arms 13, and two support arms 13 are close
Two sides offer loose slot compatible with lifter plate 16, and the bottom surface of support plate 14 is fixedly installed with to be supported positioned at two
The bottom end of locating slide rod 17 between arm 13, locating slide rod 17 is fixedly connected through lifter plate 16 and with the top surface of control cabinet 4, fixed
The external activity of position slide bar 17 is socketed with the positioning sliding block 18 above lifter plate 16, and the front of positioning sliding block 18 is fixedly mounted
There is pile hammer 19, the back side of positioning sliding block 18 is movably installed with piling arm 20, and the other end of piling arm 20 is movably installed with connection
The bottom end of bar 21, connecting rod 21 is flexibly connected with the top surface of car body 1, and the bottom surface of piling arm 20 is movably installed with hydraulic stem 22, liquid
The bottom end of compression bar 22 is flexibly connected with the top surface of car body 1, and the front of gripping block 8 extends to the outside of control cabinet 4 and fixed installation
There is clamping plate 24, the front of control cabinet 4 offers shifting chute compatible with gripping block 8.
When work, hydraulic pile driver piling mechanism is moved to the place for needing to drive piles first, then rotates adjusting rod
11, then driving bevel gear 12 by driven wheel of differential 23 with elevating screw thread bar 15 rotate, after lifting plate 16 move up,
Then lifter plate 16 reaches specified altitude assignment, then opens servo motor 7, reverse screw rod 6 is with 5 turns of forward screw thread bar later
Dynamic, latter two right gripping block 8 is relatively moved with two clamping plates 24, then two clamping plates 24 fixation that guardrail is stable
Firmly, starting diesel engine 2 is driven piles later.
In conclusion the hydraulic pile driver is driven piles, mechanism enables driving bevel gear 12 to lead to by rotating adjusting rod 11
Driven wheel of differential 23 is crossed to rotate with elevating screw thread bar 15 so that lifter plate 16 can move up, by graduation mark and
The cooperation of arrow enables worker to accurately control distance of the lifter plate 16 apart from ground, cooperates positioning sliding block 18, limitation
The height that pile hammer 19 is driven piles, flushes the guardrail on injection ground, reduces the workload of worker, improve the liquid
Press the practicability of piling machine piling mechanism；By servo motor 7, a kinetic energy is provided for reverse screw rod 6, so that reversed spiral shell
Rasp bar 6 can be rotated with forward screw thread bar 5, by the cooperation of reverse screw rod 6 and forward screw thread bar 5, so that two clampings
Block 8 can relatively move, so that two clamping plates 24 can be relatively moved and be fixed guardrail is stable, avoid work
Manpower moves righting guardrail and drives piles, and is easy to train off, guardrail is caused to be deflected or bended, and dangerous problem is caused to worker,
Improve the practicability of hydraulic pile driver piling mechanism；Solving existing hydraulic pile driver does not have a height limiter, worker with
Guardrail is squeezed into ground by experience, cannot be precisely controlled the exposed height on earth's surface of guardrail, so that guardrail height is uneven, is needed
The height of worker's manual correction guardrail, and the not device of nonfloating rail need worker that will drive piles after guardrail righting, liquid
Hammer is easy to train off, and guardrail is caused to be deflected or bended, and endangers the problem of the life safety of worker.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
- The mechanism 1. a kind of hydraulic pile driver is driven piles, including car body (1), it is characterised in that: the top surface of the car body (1) is fixedly mounted Have diesel engine (2), the top surface of the car body (1) is fixedly installed with the hydraulic pump (3) positioned at diesel engine (2) back side, the car body (1) top surface is fixedly installed with the control cabinet (4) on the left of diesel engine (2), the left side activity of control cabinet (4) inner cavity It is socketed with forward screw thread bar (5), the right end of the forward screw thread bar (5) is fixedly installed with reverse screw rod (6), the car body (1) top surface is fixedly installed with the servo motor (7) on the right side of control cabinet (4), the forward screw thread bar (5) and reverse thread The equal movable sleeve in outside of bar (6) is connected to gripping block (8), and the inner wall of the control cabinet (4) is fixedly installed on gripping block (8) The partition (10) of side, the inner wall movable sleeve of the control cabinet (4) are connected to the adjusting rod (11) above partition (10), the tune The external fixing sleeve of pole (11) is connected to driving bevel gear (12), and the quantity of the driving bevel gear (12) is two, the control The left and right ends of case (4) top surface processed are fixedly installed with support arm (13), and the top of the support arm (13) is fixedly installed with branch Fagging (14), the bottom surface movable sleeve of the support plate (14) are connected to the elevating screw thread bar (15) internal positioned at support arm (13), institute The bottom end for stating elevating screw thread bar (15) extends to the inside of control cabinet (4) and fixing sleeve is connected to and is meshed with driving bevel gear (12) Driven wheel of differential (23), the top surface pivot bush unit of the outside of the elevating screw thread bar (15) and control cabinet (4), the lifting spiral shell The external screw-thread of rasp bar (15) is socketed with lifter plate (16), and the bottom surface of the support plate (14) is fixedly installed with to be supported positioned at two Locating slide rod (17) between arm (13), the bottom end of the locating slide rod (17) through lifter plate (16) and with control cabinet (4) Top surface is fixedly connected, and the external activity of the locating slide rod (17) is socketed with the positioning sliding block above lifter plate (16) (18), the front of the positioning sliding block (18) is fixedly installed with pile hammer (19), the back side activity peace of the positioning sliding block (18) Equipped with piling arm (20), the other end of piling arm (20) is movably installed with connecting rod (21), the bottom of the connecting rod (21) End is flexibly connected with the top surface of car body (1), and the bottom surface of piling arm (20) is movably installed with hydraulic stem (22), the hydraulic stem (22) bottom end is flexibly connected with the top surface of car body (1), and the front of the gripping block (8) extends to the outside of control cabinet (4) simultaneously It is fixedly installed with clamping plate (24).
- The mechanism 2. a kind of hydraulic pile driver according to claim 1 is driven piles, it is characterised in that: the top surface of the car body (1) Be fixedly installed with servo motor (7) compatible motor housing (9), and the outer surface of motor housing (9) offers heat release hole, described The rotating wheel of diesel engine (2) is sequentially connected by transmission belt and hydraulic pump (3).
- The mechanism 3. a kind of hydraulic pile driver according to claim 1 is driven piles, it is characterised in that: the forward screw thread bar (5) It is symmetrical as symmetry axis using the center line of partition (10) with reverse screw rod (6), and two gripping blocks (8) are with partition (10) Center line is that symmetry axis is symmetrical.
- The mechanism 4. a kind of hydraulic pile driver according to claim 1 is driven piles, it is characterised in that: the top of the control cabinet (4) Face offers concave groove, and the internal activity of concave groove is equipped with ball, and the outside of the elevating screw thread bar (15) is fixedly attached There is limit plate, and the bottom surface of limit plate offers arc groove compatible with ball.
- The mechanism 5. a kind of hydraulic pile driver according to claim 1 is driven piles, it is characterised in that: the two of the lifter plate (16) End extends through two close sides of two support arms (13), and close two sides of two support arms (13) offer The compatible loose slot with lifter plate (16).
- The mechanism 6. a kind of hydraulic pile driver according to claim 1 is driven piles, it is characterised in that: the support arm (13) is just Face is equipped with graduation mark, and the front of lifter plate (16) is equipped with arrow compatible with graduation mark, the lifter plate (16) Top surface is fixedly installed with cushion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821340613.XU CN209040121U (en) | 2018-08-20 | 2018-08-20 | A kind of hydraulic pile driver piling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821340613.XU CN209040121U (en) | 2018-08-20 | 2018-08-20 | A kind of hydraulic pile driver piling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209040121U true CN209040121U (en) | 2019-06-28 |
Family
ID=67031238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821340613.XU Expired - Fee Related CN209040121U (en) | 2018-08-20 | 2018-08-20 | A kind of hydraulic pile driver piling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209040121U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777783A (en) * | 2019-11-13 | 2020-02-11 | 东阳潘辰竹木工艺品有限公司 | Domestic farm pile driver |
| CN110886578A (en) * | 2019-12-05 | 2020-03-17 | 株洲天桥舜臣选煤机械有限责任公司 | Drilling equipment is used in mine engineering blasting |
| CN112726614A (en) * | 2020-12-24 | 2021-04-30 | 中国水电基础局有限公司 | Construction method for inland steel pipe pile in comprehensive treatment of bridge construction in plain river |
| CN113718769A (en) * | 2021-09-02 | 2021-11-30 | 黑龙江农垦建工路桥有限公司 | Auxiliary pile driving device for bridge pipe pile |
| CN114232626A (en) * | 2022-01-21 | 2022-03-25 | 江西宏巍建筑工程有限公司 | Municipal works are with pile device |
| CN115233671A (en) * | 2021-04-25 | 2022-10-25 | 东台市巨力机械制造有限公司 | Crawler-type full-automatic pile driver |
-
2018
- 2018-08-20 CN CN201821340613.XU patent/CN209040121U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777783A (en) * | 2019-11-13 | 2020-02-11 | 东阳潘辰竹木工艺品有限公司 | Domestic farm pile driver |
| CN110886578A (en) * | 2019-12-05 | 2020-03-17 | 株洲天桥舜臣选煤机械有限责任公司 | Drilling equipment is used in mine engineering blasting |
| CN112726614A (en) * | 2020-12-24 | 2021-04-30 | 中国水电基础局有限公司 | Construction method for inland steel pipe pile in comprehensive treatment of bridge construction in plain river |
| CN112726614B (en) * | 2020-12-24 | 2022-08-02 | 中国水电基础局有限公司 | Construction method for land steel pipe pile in comprehensive treatment of bridge construction in plain river |
| CN115233671A (en) * | 2021-04-25 | 2022-10-25 | 东台市巨力机械制造有限公司 | Crawler-type full-automatic pile driver |
| CN113718769A (en) * | 2021-09-02 | 2021-11-30 | 黑龙江农垦建工路桥有限公司 | Auxiliary pile driving device for bridge pipe pile |
| CN114232626A (en) * | 2022-01-21 | 2022-03-25 | 江西宏巍建筑工程有限公司 | Municipal works are with pile device |
| CN114232626B (en) * | 2022-01-21 | 2023-09-15 | 广东国大建工集团有限公司 | Pile driving device for municipal engineering |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190628 Termination date: 20200820 |
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| CF01 | Termination of patent right due to non-payment of annual fee |