CN113106974A - Vibration pipe-sinking pile machine - Google Patents
Vibration pipe-sinking pile machine Download PDFInfo
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- CN113106974A CN113106974A CN202110235250.3A CN202110235250A CN113106974A CN 113106974 A CN113106974 A CN 113106974A CN 202110235250 A CN202110235250 A CN 202110235250A CN 113106974 A CN113106974 A CN 113106974A
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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
- E02D7/18—Placing by vibrating
Abstract
The invention discloses the technical field of a vibration pipe-sinking pile machine, in particular to a vibration pipe-sinking pile machine, which comprises a vibration hammer, the upper end of the vibration hammer is fixedly provided with a connecting buckle, the bottom end of the vibration hammer is fixedly provided with a connecting plate, a first arc-shaped block is arranged below the connecting plate, three groups of first arc-shaped blocks are arranged on the first arc-shaped block, the upper end of the first arc-shaped block is connected with a sliding part, the first arc-shaped blocks are connected with the lower end of the connecting plate through sliding parts, the first arc-shaped blocks are connected with each other through first connecting parts, a built-in threaded hole is arranged at the center of one side wall of the arc-shaped block, a round pipe is arranged at the lower end of the arc-shaped block, the upper end of the circular tube is inserted between the first arc-shaped blocks, the circular tube is fixed through the fixing part, the lower end of the circular tube is connected with the mud body, the middle outer wall of the circular tube is provided with a sleeve part, and the sleeve part is connected through a second connecting part, so that the invention has the beneficial effects that: can fix round pipes with different specifications and vertically hold the round pipes.
Description
Technical Field
The invention relates to the field of vibrating pipe-sinking pile machines, in particular to a vibrating pipe-sinking pile machine.
Background
The vibration pile-sinking machine is composed of vibrator, pile-clamping device, driving device and motor, and its main working device is a directional vibrator, its vibration exciting portion is a pair of horizontal rotating shafts, on the rotating shafts several eccentric blocks with identical mass and form are set, and the eccentric blocks of every pair of rotating shafts are symmetrically arranged, and are driven by a pair of identical gears, and their rotating speeds are identical and their turning directions are opposite, so that the disturbance forces produced when the two shafts are run can be mutually balanced and offset in horizontal direction, and can prevent the pile-sinking machine and pile from transversely swinging, and the disturbance forces in vertical direction can be mutually superimposed to form vibration exciting force to promote pile body to vibrate.
The prior art has the following defects: the tubular pile needs to be clamped by the vibrating immersed tube pile machine during construction, then the tubular pile is driven into the ground, the diameter of the tubular pile can not be adjusted by the pile clamping device of the existing vibrating immersed tube pile machine, different pile clamping devices need to be replaced facing tubular piles of different diameters in the construction process, the tubular pile is vertically fixed without equipment during pile sinking, the tubular pile is driven into the ground or the original position of deviation easily, the working efficiency is reduced, and the workload of workers is increased.
Therefore, the invention is necessary to invent a vibration pipe-sinking pile machine.
Disclosure of Invention
Therefore, the invention provides a vibrating pipe-sinking pile machine, which is characterized in that a connecting plate is fixedly arranged at the lower end of a vibrating hammer, a first arc-shaped block is connected onto the connecting plate through a sliding part, a circular pipe is fixed onto the first arc-shaped block through a fixing part, a sleeve part is sleeved on the circular pipe, and a supporting part is arranged at the lower end of the sleeve part, so that the problems that circular pipes of different specifications can be fixed and the circular pipes can be vertically held are solved.
In order to achieve the above purpose, the invention provides the following technical scheme: a vibration pipe-sinking pile machine comprises a vibration hammer.
Preferably, vibrating hammer upper end fixed mounting has the connector link, vibrating hammer bottom fixed mounting has the connecting plate, the connecting plate below is equipped with arc piece one, arc piece one is equipped with three groups, arc piece one upper end is connected with sliding part, arc piece one is connected at the connecting plate lower extreme through sliding part, connect through adapting unit one between the arc piece one, an arc piece lateral wall central point is equipped with built-in screw hole, arc piece one lower extreme is equipped with the pipe, insert between the arc piece one on the pipe, the pipe is fixed through fixed part, the mud body is connected to the pipe lower extreme, the outer wall is equipped with bushing part in the middle of the pipe, bushing part one end is equipped with adapting unit two, bushing part lower extreme is connected with the supporting component, the mud body is connected to the supporting component lower extreme.
Preferably, the sliding part comprises a convex sliding groove, the convex sliding groove is located at the lower end of the connecting plate, the convex sliding grooves are provided with three groups, a convex sliding block is arranged in the convex sliding groove, and the lower end of the convex sliding block is fixedly arranged at the upper end of the arc-shaped block.
Preferably, the first connecting part comprises a through hole, the through hole is located on the side walls of the two ends of the arc-shaped block, the through hole penetrates through the front end and the side walls of the arc-shaped block, a first bolt and a first nut are connected in the through hole, the first bolt penetrates through the through hole, and the front end of the first bolt is connected with the first nut.
Preferably, the fixing part comprises a fixing bolt, the fixing bolt is in threaded connection with the internally threaded hole, the fixing bolt penetrates through the internally threaded hole, and the front end of the fixing bolt is tightly connected with the outer wall of the circular tube.
Preferably, the sleeve part comprises an arc block II, the arc block II is provided with two groups, connecting blocks are fixedly mounted on the outer walls of the arc block, three groups of connecting blocks are arranged, grooves are formed in the outer sides of the connecting blocks, circular pipes are sleeved on the inner walls of the arc block II, hinges are connected to the rear sides of the arc block II, lug blocks are fixedly mounted at the front ends of the arc block II, bolt holes are formed in the lug blocks, and the front ends of the arc block II are connected through a connecting part II.
Preferably, the second connecting part comprises a second nut and a second bolt, the second nut and the second bolt are located on the outer side of the lug, the second bolt penetrates through the lug, and the second bolt is in threaded connection with the second nut.
Preferably, the support component includes the bracing piece, in the recess was inserted to the bracing piece upper end, upper end of the support rod is equipped with the round hole, the connecting block is connected with the bolt, the bolt passes recess and round hole, upper end of the support rod can rotate on the bolt, the bracing piece lower extreme is equipped with the base, the mud body is connected to the base lower extreme, be equipped with the fixed slot on the base, fixed slot width and thickness slightly are greater than in bracing piece width and thickness, the bracing piece lower extreme inserts in the fixed slot, the bracing piece lower extreme passes through the bolt to be fixed in the fixed slot.
Preferably, the sleeve part further comprises two groups of metal rods, the lower ends of the metal rods are fixedly mounted at the upper ends of the two arc-shaped blocks, and the upper ends of the metal rods are fixedly mounted at the lower ends of the two arc-shaped blocks.
The invention has the beneficial effects that: the first moving arc-shaped block is pushed by observing the diameter of the circular tube, the convex sliding block slides in the convex sliding groove, thereby changing the position of the first arc-shaped block, adjusting the first arc-shaped block to a proper position, ensuring that the diameter of the circle formed by the three groups of first arc-shaped blocks is larger than that of the circular tube, fixing the first arc-shaped block by the connecting part, inserting the circular tube into the circle formed by the three groups of first arc-shaped blocks, the round pipe is fixed through the fixing part, the round pipe is vertically hoisted, the supporting part is placed on the mud body, the second arc-shaped block is opened, the second arc-shaped block is sleeved on the round pipe, the second arc-shaped block is rotated, the diameter of a circle formed by the two groups of second arc-shaped blocks is larger than that of the round pipe, the two groups of arc blocks are connected through the second connecting part, the supporting part is fixed on the second arc block, the position of the base is adjusted, the circular pipe is vertically supported, and the vibrating hammer can be started to drive the circular pipe into mud.
Drawings
Fig. 1 is a schematic structural view of a bushing member according to embodiment 1 of the present invention;
FIG. 2 is a bottom view of the sliding parts of example 1 provided by the present invention;
fig. 3 is a schematic structural view of a sliding member according to embodiment 1 of the present invention;
FIG. 4 is a schematic structural view of a connecting member according to embodiment 1 of the present invention;
FIG. 5 is a schematic structural view of a fixing member according to embodiment 1 of the present invention;
FIG. 6 is a schematic structural view of a second connecting member according to embodiment 1 of the present invention;
FIG. 7 is a schematic view of the connection between the base and the supporting rod according to embodiment 1 of the present invention;
fig. 8 is a schematic structural view of a sleeve member according to embodiment 2 of the present invention.
In the figure: the device comprises a mud body 1, a vibrating hammer 2, a connecting buckle 3, a connecting plate 4, an arc-shaped block I5, a convex sliding groove 6, a convex sliding block 7, a through hole 8, a bolt I9, a nut I10, a round tube 11, a fixing bolt 12, a threaded hole 13 arranged in the arc-shaped block II 14, a connecting block 15, a supporting rod 16, a groove 17, a bolt 18, a round hole 19, a hinge 20, an ear block 21, a nut II 22, a bolt II 23, a base 24, a fixing groove 25, a metal rod 26, a sliding part 101, a connecting part I201, a fixing part 301, a sleeve part 401, a connecting part II 501 and a supporting part 601.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1:
referring to fig. 1-7, the present invention provides a vibrating pipe-sinking pile machine, which comprises a vibrating hammer 2;
further, the upper end of the vibrating hammer 2 is fixedly provided with a connecting buckle 3, the connecting buckle 3 can connect the vibrating hammer 2 to the crane, the bottom end of the vibrating hammer 2 is fixedly provided with a connecting plate 4 which plays a role of connecting the first arc-shaped block 5, the lower part of the connecting plate 4 is provided with the first arc-shaped block 5, the first arc-shaped block 5 is provided with three groups, the first arc-shaped block 5 of the three groups can form a circle, the upper end of the first arc-shaped block 5 is connected with a sliding part 101 which can slide the first arc-shaped block 5, the first arc-shaped block 5 is connected with the lower end of the connecting plate 4 through the sliding part 101, the first arc-shaped block 5 is connected through a connecting part 201 to play a connecting role, the central point of the side wall of the first arc-shaped block 5 is provided with a built-in threaded hole 13, the lower end of the first arc-, the middle outer wall of the round pipe 11 is provided with a sleeve part 401 which sleeves the round pipe 11, one end of the sleeve part 401 is provided with a second connecting part 501 which plays a connecting role, the lower end of the sleeve part 401 is connected with a supporting part 201, the lower end of the supporting part 201 is connected with the mud body 1, and the supporting part 201 supports the sleeve part 401.
Further, sliding part 101 includes protruding type spout 6, and protruding type spout 6 is located the 4 lower extremes of connecting plate, and protruding type spout 6 is equipped with three groups, is equipped with protruding type slider 7 in protruding type spout 6, and 7 lower extremes of protruding type slider fixed mounting are in a 5 upper ends of arc piece, through observing the diameter of pipe 11, promote to remove arc piece 5, and protruding type slider 7 slides in protruding type spout 6 to change the position of arc piece 5.
Further, adapting unit 201 includes through-hole 8, and through-hole 8 is located 5 both ends lateral walls of arc piece, and through-hole 8 passes 5 front ends of arc piece and lateral wall, and through-hole 8 in-connection has bolt 9 and nut 10, and bolt 9 passes through-hole 8, and bolt 9 front end is connected with nut 10, adjusts suitable position to arc piece 5 through sliding part 101, and adapting unit 201 fixes arc piece 5.
Further, the fixed part 301 includes the gim peg 12, the built-in screw hole 13 of gim peg 12 threaded connection, the gim peg 12 passes built-in screw hole 13, gim peg 12 front end and 11 outer wall zonulae occludens of pipe, adjust the position of an arc piece 5 through sliding part 101, let the diameter that three groups of arc pieces 5 formed a circle be greater than the diameter of pipe 11, insert the circle that an arc piece 5 formed to pipe 11 in, through rotatory gim peg 12, gim peg 12 is at built-in screw hole 13 internal rotation, let gim peg 12 front end and 11 outer wall zonulae occludens of pipe, thereby fix pipe 11.
Further, bushing part 401 includes two arc pieces 14, two arc pieces 14 are equipped with two sets ofly, two 14 outer wall fixed mounting of arc pieces have connecting block 15, connecting block 15 is equipped with three groups, the connecting block 15 outside is equipped with recess 17, two 14 inner walls of arc pieces have cup jointed pipe 11, two 14 rear sides of arc pieces are connected with hinge 20, can adjust the diameter that two 14 arc pieces formed the circle through hinge 20, two 14 front end fixed mounting of arc pieces have ear piece 21, be equipped with the bolt hole on the ear piece 21, two 14 front ends of arc pieces are connected through adapting unit two 501, let two 14 diameters of constituteing the circle of two sets of arc pieces be greater than the diameter of pipe 11, two sets of arc pieces two 14 are being connected together through adapting unit two 501.
Further, the second connecting part 501 comprises a second nut 22 and a second bolt 23, the second nut 22 and the second bolt 23 are located on the outer side of the lug block 21, the second bolt 23 penetrates through the lug block 21, the second bolt 23 is in threaded connection with the second nut 22, the diameter of the second arc block 14 can be adjusted according to the diameter of the circular tube 11, the diameter of a circle formed between the second arc blocks 14 is larger than the diameter of the circular tube 11, and the second bolt 23 penetrates through the lug block 21 and is in threaded connection with the second nut 22 to connect the two sets of second arc blocks 14.
Further, the support member 601 includes a support rod 16, the upper end of the support rod 16 is inserted into the groove 17, the upper end of the support rod 16 is provided with a circular hole 19, the connecting block 15 is connected with a bolt 18, the bolt 18 passes through the groove 17 and the circular hole 19 to fix the upper end of the support rod 16 on the connecting block 15, the upper end of the support rod 16 can rotate on the bolt 18, the lower end of the support rod 16 is provided with a base 24, the lower end of the base 24 is connected with the mud body 1, the base 24 is provided with a fixing groove 25, the width and thickness of the fixing groove 25 are slightly larger than those of the support rod 16, the support rod 16 can be just inserted into the fixing groove 25, the lower end of the support rod 16 is fixed, the lower end of the support rod 16 and the base 24 maintain a fixed support angle, so that the arc-shaped block two, preventing the lower end of the support pole 16 from falling off the base 24.
The using process of the invention is as follows: the person skilled in the art pushes and moves the first arc-shaped block 5 by observing the diameter of the circular tube 11, the convex sliding block 7 slides in the convex sliding groove 6, thereby changing the position of the first arc-shaped block 5, adjusting the first arc-shaped block 5 to a proper position, making the diameter of the circle formed by the three first arc-shaped blocks 5 larger than that of the circular tube 11, the first connecting part 201 fixes the first arc-shaped block 5, inserting the circular tube 11 into the circle formed by the three first arc-shaped blocks 5, fixing the circular tube 11 through the fixing part 301, vertically hoisting the circular tube 11, placing the supporting part 601 on the mud body 1, opening the second arc-shaped block 14, sleeving the second arc-shaped block 14 on the circular tube 11, rotating the second arc-shaped block 14, making the diameter of the circle formed by the two second arc-shaped blocks 14 larger than that of the circular tube 11, connecting the two second arc-shaped blocks 14 through the second connecting part 501, fixing the supporting part 601 on the second arc, the position of the base 24 is adjusted, the circular tube 11 is vertically held, and the vibration hammer 2 can be started to drive the circular tube 11 into the mud body 1.
Example 2:
referring to fig. 8, the present invention provides a vibration pipe-sinking pile machine, which comprises a sleeve part 401.
Further, sleeve part 401 still includes metal pole 26, and metal pole 26 is equipped with two sets ofly, and metal pole 26 lower extreme fixed mounting is in two 14 upper ends of arc piece, and metal pole 26 upper end fixed mounting is in two 14 lower extremes of arc piece, and two sets of sleeve part 401 can be better the holding of pipe 11, and the bobbing hammer 2 can let pipe 11 squeeze into perpendicularly in mud body 1 when sinking the pipe.
The using process of the invention is as follows: the person skilled in the art pushes and moves the first arc-shaped block 5 by observing the diameter of the circular tube 11, the convex sliding block 7 slides in the convex sliding groove 6, thereby changing the position of the first arc-shaped block 5, adjusting the first arc-shaped block 5 to a proper position, making the diameter of the circle formed by the three first arc-shaped blocks 5 larger than that of the circular tube 11, the first connecting part 201 fixes the first arc-shaped block 5, inserting the circular tube 11 into the circle formed by the three first arc-shaped blocks 5, fixing the circular tube 11 through the fixing part 301, vertically hoisting the circular tube 11, placing the supporting part 601 on the mud body 1, opening the second arc-shaped block 14, sleeving the second arc-shaped block 14 on the circular tube 11, rotating the second arc-shaped block 14, making the diameter of the circle formed by the two second arc-shaped blocks 14 larger than that of the circular tube 11, connecting the two second arc-shaped blocks 14 through the second connecting part 501, fixing the supporting part 601 on the second arc, the position of the base 24 is adjusted, the circular tube 11 is vertically held, and the vibration hammer 2 can be started to drive the circular tube 11 into the mud body 1.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a vibration immersed tube stake machine, includes vibratory hammer (2), its characterized in that: the vibrating hammer is characterized in that a connecting buckle (3) is fixedly mounted at the upper end of the vibrating hammer (2), a connecting plate (4) is fixedly mounted at the bottom end of the vibrating hammer (2), a first arc block (5) is arranged below the connecting plate (4), three groups of the first arc block (5) are arranged, a sliding component (101) is connected to the upper end of the first arc block (5), the first arc block (5) is connected to the lower end of the connecting plate (4) through the sliding component (101), the first arc block (5) is connected with one connecting component (201), a built-in threaded hole (13) is formed in the central point of the side wall of the first arc block (5), a round pipe (11) is arranged at the lower end of the first arc block (5), the upper end of the round pipe (11) is inserted between the first arc blocks (5), the round pipe (11) is fixed through a fixing component (301), a mud body (1) is connected to the, one end of the sleeve part (401) is provided with a second connecting part (501), the lower end of the sleeve part (401) is connected with a supporting part (201), and the lower end of the supporting part (201) is connected with the mud body (1).
2. A vibrating pipe-sinking pile machine according to claim 1, characterized in that: sliding part (101) is including protruding type spout (6), protruding type spout (6) are located connecting plate (4) lower extreme, protruding type spout (6) are equipped with three groups, be equipped with protruding type slider (7) in protruding type spout (6), protruding type slider (7) lower extreme fixed mounting is in arc piece (5) upper end.
3. A vibrating pipe-sinking pile machine according to claim 1, characterized in that: adapting unit (201) includes through-hole (8), through-hole (8) are located arc piece (5) both ends lateral wall, arc piece (5) front end and lateral wall are passed in through-hole (8), through-hole (8) in-connection has bolt (9) and nut (10), bolt (9) pass through-hole (8), bolt (9) front end is connected with nut (10).
4. A vibrating pipe-sinking pile machine according to claim 1, characterized in that: the fixing part (301) comprises a fixing bolt (12), the fixing bolt (12) is in threaded connection with a built-in threaded hole (13), the fixing bolt (12) penetrates through the built-in threaded hole (13), and the front end of the fixing bolt (12) is tightly connected with the outer wall of the circular tube (11).
5. A vibrating pipe-sinking pile machine according to claim 1, characterized in that: bushing part (401) includes arc piece two (14), arc piece two (14) are equipped with two sets ofly, arc piece two (14) outer wall fixed mounting has connecting block (15), connecting block (15) are equipped with three groups, connecting block (15) outside is equipped with recess (17), pipe (11) have been cup jointed to arc piece two (14) inner wall, arc piece two (14) rear side is connected with hinge (20), arc piece two (14) front end fixed mounting has ear piece (21), be equipped with the bolt hole on ear piece (21), arc piece two (14) front end is passed through adapting unit two (501) and is connected.
6. A vibrating pipe-sinking pile machine according to claim 1, characterized in that: the second connecting part (501) comprises a second nut (22) and a second bolt (23), the second nut (22) and the second bolt (23) are located on the outer side of the lug block (21), the second bolt (23) penetrates through the lug block (21), and the second bolt (23) is in threaded connection with the second nut (22).
7. A vibrating pipe-sinking pile machine according to claim 1, characterized in that: support member (601) includes bracing piece (16), in bracing piece (16) upper end inserts recess (17), bracing piece (16) upper end is equipped with round hole (19), connecting block (15) are connected with bolt (18), recess (17) and round hole (19) are passed in bolt (18), bracing piece (16) upper end can rotate on bolt (18), bracing piece (16) lower extreme is equipped with base (24), the mud body (1) is connected to base (24) lower extreme, be equipped with fixed slot (25) on base (24), fixed slot (25) width and thickness slightly are greater than bracing piece (16) width and thickness, in bracing piece (16) lower extreme inserts fixed slot (25), bracing piece (16) lower extreme passes through the bolt to be fixed in fixed slot (25).
8. A vibrating pipe-sinking pile machine according to claim 1, characterized in that: the sleeve part (401) further comprises two groups of metal rods (26), the lower ends of the metal rods (26) are fixedly mounted at the upper end of the second arc-shaped block (14), and the upper end of the metal rod (26) is fixedly mounted at the lower end of the second arc-shaped block (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110235250.3A CN113106974A (en) | 2021-03-03 | 2021-03-03 | Vibration pipe-sinking pile machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110235250.3A CN113106974A (en) | 2021-03-03 | 2021-03-03 | Vibration pipe-sinking pile machine |
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| Publication Number | Publication Date |
|---|---|
| CN113106974A true CN113106974A (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110235250.3A Pending CN113106974A (en) | 2021-03-03 | 2021-03-03 | Vibration pipe-sinking pile machine |
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| Country | Link |
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| CN (1) | CN113106974A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201817813U (en) * | 2010-10-23 | 2011-05-04 | 河南森木实业发展有限公司 | Vibrating and hammering integrated pile driver and vibration hammer thereof |
| CN103161155A (en) * | 2011-12-19 | 2013-06-19 | 毕建东 | Pile machine special for immersed tube pressure filling pile, using method thereof and application thereof |
| CN107574823A (en) * | 2017-11-09 | 2018-01-12 | 龙岩新诚知识产权服务有限公司 | A kind of vibratory piling machine for span bridge construction |
| CN107893419A (en) * | 2017-11-07 | 2018-04-10 | 闻海强 | A kind of clip pile device of municipal road construction vibratory piling machine |
| CN111576421A (en) * | 2020-04-15 | 2020-08-25 | 中冶华亚建设集团有限公司 | Tubular pile sinking positioning device |
-
2021
- 2021-03-03 CN CN202110235250.3A patent/CN113106974A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201817813U (en) * | 2010-10-23 | 2011-05-04 | 河南森木实业发展有限公司 | Vibrating and hammering integrated pile driver and vibration hammer thereof |
| CN103161155A (en) * | 2011-12-19 | 2013-06-19 | 毕建东 | Pile machine special for immersed tube pressure filling pile, using method thereof and application thereof |
| CN107893419A (en) * | 2017-11-07 | 2018-04-10 | 闻海强 | A kind of clip pile device of municipal road construction vibratory piling machine |
| CN107574823A (en) * | 2017-11-09 | 2018-01-12 | 龙岩新诚知识产权服务有限公司 | A kind of vibratory piling machine for span bridge construction |
| CN111576421A (en) * | 2020-04-15 | 2020-08-25 | 中冶华亚建设集团有限公司 | Tubular pile sinking positioning device |
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Application publication date: 20210713 |