Construction engineering concrete pipe pile pulling-out device

Abstract

The invention provides a building engineering concrete pipe pile pulling-out device. The constructional engineering concrete pipe pile pulling-out device comprises a base, and a pile pulling-out mechanism, two soil scraping mechanisms, a lifting mechanism, four supporting and moving mechanisms and a cleaning mechanism are arranged on the base; the pile pulling-out mechanism can crush soil in the pipe pile and can discharge the crushed soil in the pipe pile; the soil scraping mechanism can make the material scraping block extend out to make contact with the inner wall of the pipe pile, residual soil on the inner wall of the pipe pile is scraped away, and therefore residual soil on the inner wall of the pipe pile is avoided. The lifting mechanism can enable the pile pulling-out mechanism to move downwards, so that the pile pulling-out mechanism is inserted into the pipe pile, and soil in the pipe pile is cleaned. The constructional engineering concrete pipe pile pulling-out device has the advantages that pile pulling-out work can be conducted on a pipe pile, residual soil in the pipe pile can be scraped away, the cleaning effect is improved, and the pile pulling-out efficiency and effect are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete pipe pile driving, and in particular relates to a concrete pipe pile driving device for construction engineering. Background Art

[0002] Pipe piles are divided into post-tensioned prestressed pipe piles and pre-tensioned prestressed pipe piles, prestressed concrete pipe piles (PC pipe piles) and prestressed concrete thin-walled pipe piles (PTC pipe piles) and high-strength prestressed concrete pipe piles (PHC pipe piles).

[0003] Pre-tensioned prestressed pipe piles are a kind of hollow cylindrical slender concrete precast components made by pre-tensioned prestressing technology and centrifugal forming method. They are mainly composed of cylindrical pile body, end plate and steel sleeve. In the actual construction process, before pouring in the static pressure pipe pile, due to the accumulation of soil and silt in the pile hole of the pipe pile, pouring cannot be carried out without cleaning.

[0004] However, when the pile-digging device in the prior art is in use, in order to avoid collision between the drill rod and the inner wall of the pile, the diameter of the drill rod is generally smaller than the diameter of the pile. Therefore, there is generally mud residue on the inner wall of the pile, which requires secondary cleaning, affecting the construction progress.

[0005] Therefore, it is necessary to provide a new construction engineering concrete pipe pile digging device to solve the above-mentioned technical problems. Summary of the invention

[0006] The technical problem solved by the invention is to provide a construction engineering concrete pipe pile driving device which can drive out pipe piles and scrape off the residual soil in the pipe piles, thereby improving the cleaning effect and the efficiency and effect of driving out piles.

[0007] In order to solve the above technical problems, the present invention provides a construction engineering concrete pipe pile driving device comprising: a base, on which a pile driving mechanism, two soil scraping mechanisms, a lifting mechanism, four supporting and moving mechanisms and a cleaning mechanism are arranged; The pile-pulling mechanism can crush the soil in the pipe pile and discharge the crushed soil in the pipe column; The scraping mechanism can make the scraping block extend to contact the inner wall of the pipe pile, and scrape away the soil remaining on the inner wall of the pipe pile, thereby avoiding the soil remaining on the inner wall of the pipe pile; The lifting mechanism can move the pile-digging mechanism downward, so that the pile-digging mechanism is inserted into the pipe pile to clean the soil in the pipe pile; The support and movement mechanism can support the device and facilitate the movement of the device; The cleaning mechanism can clean the mud adhering to the outer wall of the cylinder when the cylinder is pulled out of the pipe pile.

[0008] As a further solution of the present invention, the pile-digging mechanism includes a lifting plate, a cylinder, a fixed shaft, a spiral blade, a first motor, a circular block and a plurality of inclined plates, the lifting plate is arranged above the base, the cylinder is fixedly mounted on the bottom of the lifting plate, the fixed shaft is rotatably mounted in the cylinder, the spiral blade is fixedly mounted on the fixed shaft, the first motor is fixedly mounted on the top of the lifting plate, the output shaft of the first motor is fixedly connected to the top end of the fixed shaft, the circular block is fixedly mounted on the bottom end of the fixed shaft, and the plurality of inclined plates are fixedly mounted on the circular block.

[0009] As a further solution of the present invention, the scraping mechanism includes a fixed block, a rectangular groove, a scraping block, a second motor and a one-way threaded rod, the fixed block is fixedly mounted on the circular block, the rectangular groove is opened on the fixed block, the scraping block is slidably mounted in the rectangular groove, the second motor is fixedly mounted in the rectangular groove, the one-way threaded rod is fixedly mounted on the output shaft of the second motor, and one end of the one-way threaded rod extends into the scraping block and is threadedly connected to the scraping block.

[0010] As a further solution of the present invention, the lifting mechanism includes a vertical plate, a lifting groove, a rectangular slider, a strip plate, a mounting plate, a dual-axis motor, two gears and two tooth plates. The vertical plate is fixedly mounted on the top of the base, the lifting groove is opened on the vertical plate, the rectangular slider is slidably mounted in the lifting groove, the strip plate is fixedly mounted on one side of the rectangular slider, one side of the strip plate is fixedly connected to the lifting plate, the mounting plate is fixedly mounted on the other side of the rectangular slider, the dual-axis motor is fixedly mounted on the mounting plate, the two gears are respectively fixedly mounted on the two output shafts of the dual-axis motor, the two tooth plates are fixedly mounted on one side of the vertical plate, and the gears and tooth plates are meshed.

[0011] As a further solution of the present invention, the supporting and moving mechanism includes a supporting leg, a supporting plate, a hydraulic cylinder, a rectangular plate and a universal wheel. The supporting leg is fixedly installed on the bottom of the base, the supporting plate is fixedly installed on the bottom of the supporting leg, the hydraulic cylinder is fixedly installed in the supporting leg, the rectangular plate is fixedly installed on the output shaft of the hydraulic cylinder, and the universal wheel is fixedly installed on the bottom of the rectangular plate.

[0012] As a further solution of the present invention, the cleaning mechanism includes four fixed plates, two bidirectional threaded rods, a third motor, two arc-shaped scraping rods, two pulleys and a synchronous belt. The four fixed plates are fixedly mounted on the top of the base, the two bidirectional threaded rods are rotatably mounted on the four fixed plates, the third motor is fixedly mounted on the top of the base, the output shaft of the third motor is fixedly connected to one end of the corresponding bidirectional threaded rod, the two arc-shaped scraping rods are threadedly sleeved on the bidirectional threaded rod, the two pulleys are respectively fixedly sleeved on the two bidirectional threaded rods, and the synchronous belt is wrapped around the two pulleys.

[0013] As a further solution of the present invention, a conical block is provided at the bottom of the circular block, and a soil discharge pipe is fixedly installed on the outer wall of the cylinder.

[0014] As a further solution of the present invention, a limiting slide groove is provided on the top inner wall of the fixed block, a limiting slider is slidably installed in the limiting slide groove, and the bottom of the limiting slider is fixedly connected to the scraper block.

[0015] As a further solution of the present invention, two inclined reinforcement rods are fixedly installed on the top of the base, and one end of the inclined reinforcement rod is fixedly connected to the vertical plate.

[0016] As a further solution of the present invention, a fixed sliding rod is fixedly installed in the lifting groove, and the fixed sliding rod passes through the rectangular sliding block and is slidably connected to the rectangular sliding block.

[0017] Compared with the related art, the construction engineering concrete pipe pile driving device provided by the present invention has the following beneficial effects: 1. The present invention provides a pile-digging mechanism, so that the soil in the pipe pile can be crushed and the crushed soil in the pipe column can be discharged; 2. The present invention provides a scraping mechanism so that the scraping block can extend to contact the inner wall of the pipe pile to scrape off the soil remaining on the inner wall of the pipe pile, thereby avoiding soil remaining on the inner wall of the pipe pile; 3. The present invention provides a lifting mechanism so that the pile-digging mechanism can be moved downward, inserted into the pipe pile, and the soil in the pipe pile can be cleaned; 4. The present invention provides a support and movement mechanism, so that the device can be supported and the position of the device can be moved easily; 5. The present invention provides a cleaning mechanism so that the mud adhering to the outer wall of the cylinder can be cleaned when the cylinder is pulled out of the pipe pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0019] Figure 1 A schematic diagram of the first three-dimensional structure of the construction engineering concrete pipe pile driving device provided by the present invention; Figure 2 A second three-dimensional structural schematic diagram of the construction engineering concrete pipe pile driving device provided by the present invention; Figure 3 A schematic diagram of a first partial cross-sectional structure of the construction engineering concrete pipe pile driving device provided by the present invention; Figure 4A schematic diagram of a first partial structure of the construction engineering concrete pipe pile driving device provided by the present invention; Figure 5 A schematic diagram of a second partial structure of the construction engineering concrete pipe pile driving device provided by the present invention; Figure 6 A second partial cross-sectional structural schematic diagram of the construction engineering concrete pipe pile driving device provided by the present invention; Figure 7 A third partial cross-sectional structural schematic diagram of the construction engineering concrete pipe pile driving device provided by the present invention; Figure 8 This is a schematic diagram of a third partial structure of the construction engineering concrete pipe pile driving device provided by the present invention.

[0020] In the figure: 1, base; 2, lifting plate; 3, cylinder; 4, fixed shaft; 5, spiral blade; 6, first motor; 7, circular block; 8, inclined plate; 9, fixed block; 10, rectangular groove; 11, scraper block; 12, second motor; 13, one-way threaded rod; 14, vertical plate; 15, lifting groove; 16, rectangular slider; 17, strip plate; 18, mounting plate; 19, double-axis motor; 20, gear; 21, tooth plate; 22, support leg; 23, support plate; 24, hydraulic cylinder; 25, rectangular plate; 26, universal wheel; 27, fixed plate; 28, two-way threaded rod; 29, third motor; 30, arc scraper rod; 31, pulley; 32, synchronous belt. DETAILED DESCRIPTION

[0021] Please refer to Figures 1 to 8 ,in, Figure 1 A schematic diagram of the first three-dimensional structure of the construction engineering concrete pipe pile driving device provided by the present invention; Figure 2 A second three-dimensional structural schematic diagram of the construction engineering concrete pipe pile driving device provided by the present invention; Figure 3 A schematic diagram of a first partial cross-sectional structure of the construction engineering concrete pipe pile driving device provided by the present invention; Figure 4 A schematic diagram of a first partial structure of the construction engineering concrete pipe pile driving device provided by the present invention; Figure 5 A schematic diagram of a second partial structure of the construction engineering concrete pipe pile driving device provided by the present invention; Figure 6 A second partial cross-sectional structural schematic diagram of the construction engineering concrete pipe pile driving device provided by the present invention; Figure 7 A third partial cross-sectional structural schematic diagram of the construction engineering concrete pipe pile driving device provided by the present invention; Figure 8 The third partial structural diagram of the construction engineering concrete pipe pile driving device provided by the present invention. The construction engineering concrete pipe pile driving device comprises: a base 1, on which a pile driving mechanism, two soil scraping mechanisms, a lifting mechanism, four supporting and moving mechanisms and a cleaning mechanism are arranged; The pile-pulling mechanism can crush the soil in the pipe pile and discharge the crushed soil in the pipe column; The scraping mechanism can make the scraper block 11 extend to contact the inner wall of the pipe pile, and scrape away the soil remaining on the inner wall of the pipe pile, thereby avoiding the soil remaining on the inner wall of the pipe pile; The lifting mechanism can move the pile-digging mechanism downward, so that the pile-digging mechanism is inserted into the pipe pile to clean the soil in the pipe pile; The support and movement mechanism can support the device and facilitate the movement of the device; The cleaning mechanism can clean the mud adhering to the outer wall of the cylinder 3 when the cylinder 3 is pulled out of the pipe pile.

[0022] like Figure 3 As shown, the pile-digging mechanism includes a lifting plate 2, a cylinder 3, a fixed shaft 4, a spiral leaf 5, a first motor 6, a circular block 7 and a plurality of inclined plates 8. The lifting plate 2 is arranged above the base 1, the cylinder 3 is fixedly mounted on the bottom of the lifting plate 2, the fixed shaft 4 is rotatably mounted in the cylinder 3, the spiral leaf 5 is fixedly mounted on the fixed shaft 4, the first motor 6 is fixedly mounted on the top of the lifting plate 2, the output shaft of the first motor 6 is fixedly connected to the top end of the fixed shaft 4, the circular block 7 is fixedly mounted on the bottom end of the fixed shaft 4, and the plurality of inclined plates 8 are fixedly mounted on the circular block 7.

[0023] like Figure 6 As shown, the scraping mechanism includes a fixed block 9, a rectangular groove 10, a scraping block 11, a second motor 12 and a one-way threaded rod 13, the fixed block 9 is fixedly mounted on the circular block 7, the rectangular groove 10 is opened on the fixed block 9, the scraping block 11 is slidably mounted in the rectangular groove 10, the second motor 12 is fixedly mounted in the rectangular groove 10, the one-way threaded rod 13 is fixedly mounted on the output shaft of the second motor 12, and one end of the one-way threaded rod 13 extends into the scraping block 11 and is threadedly connected to the scraping block 11.

[0024] like Figure 2 and Figure 4As shown, the lifting mechanism includes a vertical plate 14, a lifting groove 15, a rectangular slider 16, a strip plate 17, a mounting plate 18, a dual-axis motor 19, two gears 20 and two tooth plates 21. The vertical plate 14 is fixedly mounted on the top of the base 1, the lifting groove 15 is opened on the vertical plate 14, the rectangular slider 16 is slidably mounted in the lifting groove 15, the strip plate 17 is fixedly mounted on one side of the rectangular slider 16, one side of the strip plate 17 is fixedly connected to the lifting plate 2, the mounting plate 18 is fixedly mounted on the other side of the rectangular slider 16, the dual-axis motor 19 is fixedly mounted on the mounting plate 18, the two gears 20 are respectively fixedly mounted on the two output shafts of the dual-axis motor 19, and the two tooth plates 21 are fixedly mounted on one side of the vertical plate 14, and the gears 20 and the tooth plates 21 are meshed.

[0025] like Figure 7 As shown, the supporting and moving mechanism includes a supporting leg 22, a supporting plate 23, a hydraulic cylinder 24, a rectangular plate 25 and a universal wheel 26. The supporting leg 22 is fixedly mounted on the bottom of the base 1, the supporting plate 23 is fixedly mounted on the bottom of the supporting leg 22, the hydraulic cylinder 24 is fixedly mounted in the supporting leg 22, the rectangular plate 25 is fixedly mounted on the output shaft of the hydraulic cylinder 24, and the universal wheel 26 is fixedly mounted on the bottom of the rectangular plate 25.

[0026] like Figure 8 As shown, the cleaning mechanism includes four fixed plates 27, two bidirectional threaded rods 28, a third motor 29, two arc scraping rods 30, two pulleys 31 and a synchronous belt 32. The four fixed plates 27 are fixedly mounted on the top of the base 1, the two bidirectional threaded rods 28 are rotatably mounted on the four fixed plates 27, the third motor 29 is fixedly mounted on the top of the base 1, the output shaft of the third motor 29 is fixedly connected to one end of the corresponding bidirectional threaded rod 28, the two arc scraping rods 30 are threadedly sleeved on the bidirectional threaded rod 28, the two pulleys 31 are respectively fixedly sleeved on the two bidirectional threaded rods 28, and the synchronous belt 32 is wound around the two pulleys 31.

[0027] like Figure 3 As shown, a conical block is provided at the bottom of the circular block 7, and a soil discharge pipe is fixedly installed on the outer wall of the cylinder 3; By providing the conical block and the soil discharge pipe, the conical block can be inserted into the soil in the pipe pile, and the soil discharge pipe can facilitate the discharge of the soil in the cylinder 3.

[0028] like Figure 6 As shown, a limit slide groove is provided on the top inner wall of the fixed block 9, a limit slide block is slidably installed in the limit slide groove, and the bottom of the limit slide block is fixedly connected to the scraper block 11; By providing the limiting sliding groove and the limiting sliding block, the moving range of the scraper block 11 can be limited to prevent the scraper block 11 from being separated from the fixed block 9 .

[0029] like Figure 1 and Figure 2 As shown, two inclined reinforcement rods are fixedly installed on the top of the base 1, and one end of the inclined reinforcement rod is fixedly connected to the vertical plate 14; By arranging the inclined reinforcement rods, the device can be reinforced to improve the stability of the device structure.

[0030] like Figure 1 and Figure 2 As shown, a fixed slide bar is fixedly installed in the lifting slot 15, and the fixed slide bar passes through the rectangular slide bar 16 and is slidably connected to the rectangular slide bar 16; By setting a fixed slide rod, the rectangular slider 16 can be guided and restricted, so that the rectangular slider 16 can be lifted and lowered smoothly.

[0031] The working principle of the construction engineering concrete pipe pile digging device provided by the present invention is as follows: Step 1: When in use, start the dual-axis motor 19, the dual-axis motor 19 drives the gear 20 to rotate, and the mounting plate 18 moves downward under the cooperation of the gear 20 and the toothed plate 21, and the mounting plate 18 drives the rectangular slider 16, the strip plate 17 and the lifting plate 2 to move downward, so that the conical block is inserted into the soil in the pipe pile; The second step: start the second motor 12, the second motor 12 drives the one-way threaded rod 13 to rotate, the one-way threaded rod 13 drives the scraper block 11 to move, so that the scraper block 11 moves out of the fixed block 9, so that the scraper block 11 contacts the inner wall of the pipe pile, start the first motor 6, the first motor 6 drives the fixed shaft 4 to rotate, the fixed shaft 4 drives the spiral blade 5 and the circular block 7 to rotate, the circular block 7 drives the inclined plate 8 and the fixed block 9 to rotate, the circular block 7 and the inclined plate 8 crush the soil in the pipe pile, and then the spiral blade 5 transports the soil upward and discharges it through the soil discharge pipe. At the same time, the scraper block 11 can scrape off the residual soil on the inner wall of the pipe pile to improve the cleaning effect of the soil; The third step: after use, start the third motor 29, the third motor 29 drives the bidirectional threaded rod 28 to rotate, under the action of the two pulleys 31 and the synchronous belt 32, the two bidirectional threaded rods 28 rotate synchronously, the two bidirectional threaded rods 28 drive the two arc scraping rods 30 to approach each other and clamp on the cylinder 3, then start the double-axis motor 19 to move the cylinder 3 up and reset, the mud stuck on the outer wall of the cylinder 3 can be cleaned by the arc scraping rod 30, start the hydraulic cylinder 24, the hydraulic cylinder 24 drives the rectangular plate 25 to move down, the rectangular plate 25 drives the universal wheel 26 to move down, after the universal wheel 26 contacts the ground, the device is propped up, the support plate 23 is separated from the ground, and the device can be moved at this time.

[0032] It should be noted that the device structure and the drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above invention, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field. The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments or applied directly or indirectly without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A concrete pipe pile digging device for construction engineering, characterized in that: include: A base, on which a pile-digging mechanism, two soil-scraping mechanisms, a lifting mechanism, four supporting and moving mechanisms and a cleaning mechanism are arranged; The pile-pulling mechanism can crush the soil in the pipe pile and discharge the crushed soil in the pipe column; The scraping mechanism can make the scraping block extend to contact the inner wall of the pipe pile, and scrape away the soil remaining on the inner wall of the pipe pile, thereby avoiding the soil remaining on the inner wall of the pipe pile; The lifting mechanism can move the pile-digging mechanism downward, so that the pile-digging mechanism is inserted into the pipe pile to clean the soil in the pipe pile; The support and movement mechanism can support the device and facilitate the movement of the device; The cleaning mechanism can clean the mud adhering to the outer wall of the cylinder when the cylinder is pulled out of the pipe pile.

2. The construction engineering concrete pipe pile driving device according to claim 1 is characterized in that: The pile-digging mechanism comprises a lifting plate, a cylinder, a fixed shaft, a spiral blade, a first motor, a circular block and a plurality of inclined plates, wherein the lifting plate is arranged above a base, the cylinder is fixedly mounted on the bottom of the lifting plate, the fixed shaft is rotatably mounted in the cylinder, the spiral blade is fixedly mounted on the fixed shaft, the first motor is fixedly mounted on the top of the lifting plate, the output shaft of the first motor is fixedly connected to the top end of the fixed shaft, the circular block is fixedly mounted on the bottom end of the fixed shaft, and the plurality of inclined plates are fixedly mounted on the circular block.

3. The construction engineering concrete pipe pile digging device according to claim 2 is characterized in that: The scraping mechanism includes a fixed block, a rectangular groove, a scraping block, a second motor and a one-way threaded rod, the fixed block is fixedly mounted on the circular block, the rectangular groove is opened on the fixed block, the scraping block is slidably mounted in the rectangular groove, the second motor is fixedly mounted in the rectangular groove, the one-way threaded rod is fixedly mounted on the output shaft of the second motor, and one end of the one-way threaded rod extends into the scraping block and is threadedly connected to the scraping block.

4. The construction engineering concrete pipe pile digging device according to claim 2 is characterized in that: The lifting mechanism includes a vertical plate, a lifting groove, a rectangular slider, a strip plate, a mounting plate, a dual-axis motor, two gears and two tooth plates. The vertical plate is fixedly mounted on the top of the base, the lifting groove is opened on the vertical plate, the rectangular slider is slidably mounted in the lifting groove, the strip plate is fixedly mounted on one side of the rectangular slider, one side of the strip plate is fixedly connected to the lifting plate, the mounting plate is fixedly mounted on the other side of the rectangular slider, the dual-axis motor is fixedly mounted on the mounting plate, the two gears are respectively fixedly mounted on the two output shafts of the dual-axis motor, the two tooth plates are fixedly mounted on one side of the vertical plate, and the gears and the tooth plates are meshed.

5. The construction engineering concrete pipe pile digging device according to claim 1, characterized in that: The supporting and moving mechanism includes a supporting leg, a supporting plate, a hydraulic cylinder, a rectangular plate and a universal wheel. The supporting leg is fixedly installed on the bottom of the base, the supporting plate is fixedly installed on the bottom of the supporting leg, the hydraulic cylinder is fixedly installed in the supporting leg, the rectangular plate is fixedly installed on the output shaft of the hydraulic cylinder, and the universal wheel is fixedly installed on the bottom of the rectangular plate.

6. The construction engineering concrete pipe pile driving device according to claim 2, characterized in that: The cleaning mechanism includes four fixed plates, two bidirectional threaded rods, a third motor, two arc-shaped scraping rods, two pulleys and a synchronous belt. The four fixed plates are fixedly mounted on the top of the base, the two bidirectional threaded rods are rotatably mounted on the four fixed plates, the third motor is fixedly mounted on the top of the base, the output shaft of the third motor is fixedly connected to one end of the corresponding bidirectional threaded rod, the two arc-shaped scraping rods are threadedly sleeved on the bidirectional threaded rod, the two pulleys are respectively fixedly sleeved on the two bidirectional threaded rods, and the synchronous belt is wound around the two pulleys.

7. The construction engineering concrete pipe pile digging device according to claim 2, characterized in that: A conical block is arranged at the bottom of the circular block, and a soil discharge pipe is fixedly installed on the outer wall of the cylinder.

8. The construction engineering concrete pipe pile digging device according to claim 3 is characterized by: A limiting sliding groove is arranged on the inner wall of the top of the fixed block, a limiting sliding block is slidably installed in the limiting sliding groove, and the bottom of the limiting sliding block is fixedly connected to the scraping block.

9. The construction engineering concrete pipe pile driving device according to claim 4, characterized in that: Two inclined reinforcement rods are fixedly installed on the top of the base, and one end of the inclined reinforcement rod is fixedly connected to the vertical plate.

10. The construction engineering concrete pipe pile driving device according to claim 4, characterized in that: A fixed slide bar is fixedly installed in the lifting groove, and the fixed slide bar passes through the rectangular slide block and is slidably connected with the rectangular slide block.

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