Pile driver for hydraulic engineering construction

Abstract

The invention discloses a pile driver for hydraulic engineering construction. The pile driver comprises a movable seat, a lifting seat, a fixed seat, a pile driving assembly and a limiting block. A lifting seat is vertically and fixedly arranged at the upper end of the movable seat, a fixed seat is horizontally arranged on the lifting seat in a liftable mode, a piling assembly is arranged below the fixed seat in a liftable mode, two limiting blocks which are adjustable in distance and used for clamping workpieces are symmetrically arranged below the fixed seat, and the piling assembly comprises a supporting plate, a positioning column and a pile hammer. A positioning column is vertically, coaxially and fixedly arranged at the upper end of a horizontal and liftable supporting plate, a plurality of pile hammers are detachably assembled on the supporting plate, and the pile driver for hydraulic engineering construction is suitable for conducting pile driving operation on pile bodies of different sizes by adjusting the height of the pile driving assembly and the weight of the pile hammers. And through the two limiting plates with the adjustable distance, the pile bodies of different sizes are limited, so that the situation that the pile bodies incline in the pile driving process, and the pile driving effect of the pile bodies is affected is prevented.

Description

Technical Field

[0001] The invention relates to the field of pile drivers, and in particular to a pile driver for water conservancy project construction. Background Art

[0002] Water conservancy projects refer to various projects built to control, regulate and utilize natural surface water and groundwater in order to achieve the purpose of eliminating harm and promoting benefits. Water conservancy projects require piling during the construction process, so corresponding pile drivers are needed. Pile drivers are pile-driving machines that use impact force to penetrate piles into the ground. Pile drivers consist of pile hammers, pile frames and ancillary equipment.

[0003] After searching: Chinese patent application number is "CN202020053184.9", which discloses a pile driver for water conservancy engineering construction, including a U-shaped plate, characterized in that: the U-shaped plate is fixedly connected to a symmetrical counterweight block, the U-shaped plate is fixedly connected to one end of a symmetrical vertical rod, the other end of the symmetrical vertical rod is respectively fixedly connected to one end of a slideway, the other end of the symmetrical slideway is respectively fixedly connected to one side of the upper part of an electric push rod, the electric push rod is fixedly connected to the U-shaped plate, and round rods are respectively arranged in the symmetrical slideways. The utility model relates to the field of construction equipment, and specifically, to a pile driver for water conservancy engineering construction. The utility model is a pile driver for water conservancy engineering construction, which is conducive to the realization of piling for water conservancy engineering construction.

[0004] The inventor discovered the following problems in the prior art during the implementation of the present invention:

[0005] In actual use, different usage scenarios will require the depth and size of the pile to change accordingly. However, the pile driving depth and size of the existing device cannot be adjusted because the limited pile driving mechanism is fixedly connected to other parts, thereby reducing practicality.

[0006] Therefore, a pile driver for water conservancy engineering construction is provided, which is suitable for carrying out pile driving operations on piles of different sizes by adjusting the height of the pile driving assembly and the weight of the pile hammer during use, thereby improving its practicability, and limiting the piles of different sizes by using two limit plates with adjustable spacing to prevent the piles from tilting during the pile driving process and affecting the pile driving effect. This is a problem that the present invention urgently needs to solve. Summary of the invention

[0007] In view of the above technical problems, the purpose of the present invention is to overcome the problem that in the prior art, in different usage scenarios, the depth and size of piling are required to change accordingly during actual use. However, the piling depth and size of the existing device cannot be adjusted because the limiting piling mechanism is fixedly connected to other parts, thereby reducing the practicality. Thus, a pile driver for water conservancy engineering construction is provided, which is suitable for piling operations on piles of different sizes by adjusting the height of the piling assembly and the weight of the pile hammer during use, thereby improving its practicality. The two limiting plates with adjustable spacing are used to limit piles of different sizes to prevent the pile from tilting during the piling process and affecting the piling effect.

[0008] In order to achieve the above-mentioned object, the present invention provides a pile driver for water conservancy engineering construction, the pile driver comprising: a moving seat, a lifting seat, a fixed seat, a pile driving assembly and a limit block;

[0009] A lifting seat is vertically fixed on the upper end of the movable seat, a fixed seat is horizontally and liftably arranged on the lifting seat, a pile driving assembly is liftably arranged below the fixed seat, and two limit blocks with adjustable spacing and used for clamping workpieces are symmetrically arranged below the fixed seat on both sides of the pile driving assembly. The pile driving assembly includes: a support plate, a positioning column and a pile hammer; wherein,

[0010] A positioning column is vertically and coaxially fixedly arranged on the upper end of the horizontal and liftable support plate, and a plurality of pile hammers stacked together are detachably mounted on the support plate.

[0011] Preferably, the pile driver further comprises a driving mechanism for driving the pile driving assembly to rise and fall in a vertical direction, wherein the driving mechanism comprises: a tooth plate and an incomplete gear; wherein:

[0012] The interior of the fixing seat is a hollow structure, and a toothed plate is vertically fixed on the top of the positioning column, which can extend from the bottom of the fixing seat and pass through the top thereof; an incomplete gear meshing with the toothed plate is horizontally and rotatably arranged inside the fixing seat next to the toothed plate.

[0013] Preferably, the top of the tooth plate passes through the fixed seat and is horizontally fixed with a fixing plate, and at least one guide rod is vertically fixed on the fixing plate located next to the tooth plate, which can extend into the interior of the fixed seat from the top and pass through the bottom.

[0014] Preferably, the pile driver further comprises a distance adjustment mechanism for adjusting the distance between the two limit blocks, wherein the distance adjustment mechanism comprises: a wedge block, a power plate, a power rod and a cylinder; wherein,

[0015] Two wedge blocks are horizontally and movably arranged inside the fixed seat located on both sides of the driving mechanism, and the two limit blocks are respectively fixed to the two wedge blocks by two inverted L-shaped connecting arms, and the bottom ends of the fixed seat are respectively provided with two guide grooves which are connected with the inside and matched with the two connecting arms, and a liftable power plate is horizontally fixed above the fixed seat by a cylinder, and two power rods which can extend into the interior of the fixed seat are respectively spaced and vertically fixed at the bottom ends of the power plates, and a ball which can abut against the inclined surface of the corresponding wedge block is rotatably arranged at the bottom end of each power rod, and vertical plates are respectively vertically fixed in the fixed seat at the adjacent ends of the two guide grooves, and each wedge block and the corresponding vertical plate are connected together by a return spring.

[0016] Preferably, the pile driver further comprises a lifting mechanism for driving the fixed seat to rise and fall on the lifting seat, wherein the lifting mechanism comprises: a lifting motor, a lifting screw rod and a lifting slider; wherein,

[0017] The interior of the lifting seat is a hollow structure, and a lifting screw is vertically and rotatably arranged inside it, a lifting slider which can be lifted and lowered along its shaft is threadedly fixed on the lifting screw, an avoidance groove which is connected to the interior and for the lifting slider to pass through is provided on the side wall of the lifting seat facing the fixed seat, and an end portion of the lifting slider passes through the avoidance groove and is fixed to the fixed seat, the lifting motor is vertically fixed to the bottom of the lifting seat, and the output shaft thereof is coaxially connected to the lifting screw through a coupling.

[0018] Preferably, a plurality of pile hammers are detachably mounted on the support plate by fasteners, wherein the fasteners include studs and nuts;

[0019] At least one stud is vertically fixedly arranged at intervals on the upper end of the support plate located next to the positioning column. Each of the pile hammers is provided with an assembly port adapted to the positioning column, and each of the pile hammers is also vertically penetrated with a through hole for the stud to pass through. The stud passes through the corresponding through hole on the pile hammer and is screwed with a nut that can rest against it.

[0020] Preferably, the driving mechanism further comprises: a driving motor for driving the incomplete gear to rotate; wherein,

[0021] The driving motor is horizontally fixed in the fixing seat, and the output shaft thereof is coaxially connected with the end of the central rotating shaft of the incomplete gear through a coupling.

[0022] According to the above technical solution, the beneficial effects of the water conservancy project construction pile driver provided by the present invention when used are as follows:

[0023] (1) The fixing seat is driven to drive the piling assembly to be lifted and lowered in the vertical direction on the lifting seat, so as to adjust the height of the piling assembly to be suitable for piling operations on piles of different heights.

[0024] (2) After the height adjustment is completed, the distance between the two limit plates is adjusted to limit the piles of different sizes to prevent the piles from tilting during the piling process and affecting the piling effect.

[0025] (3) The striking force of the piling assembly is adjusted by increasing or decreasing the number of the pile hammers of the piling assembly, so as to be further suitable for piling operations on piles of different weights.

[0026] After the height of the piling assembly, the weight of the pile hammer and the distance between the two limit blocks are adjusted, the piling assembly can be put into use.

[0027] During use, the pile body placed vertically on the ground is limited by the two limiting blocks, and the piling assembly is driven to intermittently strike the top of the pile body, so as to gradually hammer the pile body into the soil to a required height.

[0028] In summary, the present invention is suitable for piling operations on piles of different sizes by adjusting the height of the piling assembly and the weight of the pile hammer, thereby improving its practicability, and the two limit plates with adjustable spacing are used to limit the piles of different sizes to prevent the piles from tilting during the piling process and affecting the piling effect.

[0029] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation mode; and the parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 It is a structural schematic diagram of a water conservancy project construction pile driver provided in a preferred embodiment of the present invention;

[0032] Figure 2 It is a structural schematic diagram of a water conservancy project construction pile driver at a certain moment during the working process provided in a preferred embodiment of the present invention;

[0033] Figure 3 yes Figure 2 Structural cross-sectional view of

[0034] Figure 4 It is a schematic diagram of the assembly of a pile driving assembly and a limit block of a water conservancy project construction pile driver provided in a preferred embodiment of the present invention;

[0035] Figure 5 It is a structural schematic diagram of a pile driving assembly of a water conservancy project construction pile driver provided in a preferred embodiment of the present invention;

[0036] Figure 6 It is an exploded view of a pile driving assembly of a water conservancy project construction pile driver provided in a preferred embodiment of the present invention.

[0037] Description of Reference Numerals

[0038] 1. Moving seat; 2. Lifting seat; 3. Fixed seat; 4. Pile driving assembly; 401. Support plate; 402. Positioning column; 403. Pile hammer; 5. Limit block; 6. Distance adjustment mechanism; 601. Wedge block; 602. Power plate; 603. Power rod; 604. Cylinder; 7. Connecting arm; 8. Fastener; 801. Stud; 802. Nut; 9. Lifting mechanism; 10. Driving mechanism; 1001. Tooth plate; 1002. Incomplete gear; 11. Guide rod; 12. Return spring. DETAILED DESCRIPTION

[0039] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0040] like Figure 1-6 As shown, the present invention provides a pile driver for water conservancy engineering construction, the pile driver comprising: a moving seat 1, a lifting seat 2, a fixed seat 3, a pile driving assembly 4 and a limit block 5;

[0041] A lifting seat 2 is vertically fixed on the upper end of the movable seat 1, a fixed seat 3 is horizontally and liftably arranged on the lifting seat 2, a pile driving assembly 4 is liftably arranged below the fixed seat 3, and two limit blocks 5 with adjustable spacing and used for clamping workpieces are symmetrically arranged below the fixed seat 3 on both sides of the pile driving assembly 4, and the pile driving assembly 4 includes: a support plate 401, a positioning column 402 and a pile hammer 403; wherein,

[0042] A positioning column 402 is vertically and coaxially fixedly disposed on the upper end of the horizontal and liftable support plate 401 , and a plurality of pile hammers 403 stacked together are detachably mounted on the support plate 401 .

[0043] In the above scheme, the fixing seat 3 is driven to drive the piling assembly 4 to be lifted and lowered in the vertical direction on the lifting seat 2 so as to adjust the height of the piling assembly 4 to be suitable for piling operations on piles of different heights.

[0044] After the height adjustment is completed, the distance between the two limiting plates 5 is adjusted to limit the piles of different sizes to prevent the piles from tilting during the piling process and affecting the piling effect.

[0045] In addition, the striking force of the piling assembly 4 can be adjusted by increasing or decreasing the number of the pile hammers 403 of the piling assembly 4, so as to be further suitable for piling operations on piles of different weights.

[0046] After the height of the piling assembly 4, the weight of the pile hammer 403 and the distance between the two limit blocks 7 are adjusted, the piling assembly 4 can be put into use.

[0047] During use, the pile body placed vertically on the ground is limited by the two limiting blocks 7, and the piling assembly 4 is driven to intermittently strike the top of the pile body, so as to gradually hammer the pile body into the soil to a required height.

[0048] In summary, the present invention is suitable for piling operations on piles of different sizes by adjusting the height of the piling assembly 4 and the weight of the pile hammer 403, thereby improving its practicability, and the two limit plates with adjustable spacing are used to limit the piles of different sizes to prevent the piles from tilting during the piling process and affecting the piling effect.

[0049] In a preferred embodiment of the present invention, the pile driver further comprises a driving mechanism 10 for driving the pile driving assembly 4 to rise and fall in a vertical direction, wherein the driving mechanism 10 comprises: a tooth plate 1001 and an incomplete gear 1002; wherein,

[0050] The interior of the fixed seat 3 is a hollow structure, and a tooth plate 1001 is vertically fixed on the top of the positioning column 402, which can extend from the bottom of the fixed seat 3 and pass through the top thereof; an incomplete gear 1002 meshingly connected to the tooth plate 1001 is horizontally and rotatably arranged inside the fixed seat 3 next to the tooth plate 1001.

[0051] In the above scheme, when in use, by rotating the incomplete gear 1002 to continuously rotate in a certain direction, the incomplete gear 1002 is meshed and connected with the tooth plate 1001, and drives the tooth plate 1001 meshed with it to drive the piling assembly 4 to rise in the vertical direction until the incomplete gear 1002 and the tooth plate 1001 are disengaged. After the incomplete gear 1002 and the tooth plate 1001 are disengaged, the piling assembly 4 descends in the vertical direction under the action of its own gravity to hit the pile body located directly below it, so as to gradually extend it into the soil.

[0052] In a preferred embodiment of the present invention, the top of the tooth plate 1001 passes through the fixed seat 3 and is horizontally fixed with a fixing plate, and at least one guide rod 11 is vertically fixed on the fixing plate next to the tooth plate 1001, which can extend into the interior of the fixed seat 3 from the top and pass through the bottom thereof.

[0053] In the above scheme, the top and bottom of the fixing seat 3 are respectively vertically penetrated with guide holes for the guide rod 11 to pass through. Under the action of the guide rod 11 and the guide hole on the fixing seat 3, it is ensured that the driving mechanism 10 drives the piling assembly 4 to perform a straight rise and fall in the vertical direction, so that the piling assembly 4 can accurately hit the pile body every time.

[0054] In a preferred embodiment of the present invention, the pile driver further comprises a distance adjustment mechanism 6 for adjusting the distance between the two limit blocks 5, wherein the distance adjustment mechanism 6 comprises: a wedge block 601, a power plate 602, a power rod 603 and a cylinder 604; wherein,

[0055] Two wedge blocks 601 are horizontally and movably arranged inside the fixed seat 3 located on both sides of the driving mechanism 10, and the two limit blocks 5 are respectively fixed on the two wedge blocks 601 by two inverted L-shaped connecting arms 7. The bottom end of the fixed seat 3 is respectively provided with two guide grooves which are connected with the inside and matched with the two connecting arms 7. A liftable power plate 602 is horizontally fixed above the fixed seat 3 by a cylinder 604. Two power rods 603 which can extend into the interior of the fixed seat 3 are respectively spaced and vertically fixed at the bottom end of the power plate 602. A ball which can be rotatably arranged at the bottom end of each power rod 603 can be abutted against the inclined surface of the corresponding wedge block 601. Vertical plates are respectively fixedly arranged in the fixed seat 3 at the adjacent ends of the two guide grooves, and each wedge block 601 and the corresponding vertical plate are connected together by a reset spring 12.

[0056] In the above solution, the cylinder 604 is vertically fixed on the top of the fixing seat 3 , and the free end of its piston rod is fixed on the power plate 602 .

[0057] When in use, by driving the piston rod of the cylinder 604 to extend from or retract into its cylinder portion, the power plate 602 can be driven to drive the two power rods 603 to move up and down in the vertical direction, thereby driving the two wedge blocks 601 to drive the two connecting arms 7 on each of them to make the two limit plates 5 move closer to or away from each other in the horizontal direction.

[0058] When the power plate 602 drives the two power rods 603 to descend in the vertical direction, the two power rods 603 can push the two wedge blocks 601 to move toward each other and approach the driving mechanism 10. At the same time, the two wedge blocks 601 compress the corresponding return springs 12 to make them in a compressed state. Therefore, the two limit blocks 5 can be driven by the two connecting arms 7 to approach to limit the pile body to be piled, so as to prevent the pile body from tilting during the piling process, thereby affecting the piling effect.

[0059] When the power plate 602 drives the two power rods 603 to rise, the two wedge blocks 601 drive the two limit blocks 5 to move in the opposite direction through the two connecting arms 7 under the action of the return spring 12 to move away from the pile body.

[0060] Therefore, the distance between the two limit blocks 5 is adjusted by the distance adjustment mechanism 6 to limit piles of different sizes, which not only prevents the pile from shifting during the piling process and affecting the piling effect, but also improves the practicality and reliability of the entire pile driver.

[0061] In a preferred embodiment of the present invention, the pile driver further comprises a lifting mechanism 9 for driving the fixed seat 3 to lift and lower on the lifting seat 2, wherein the lifting mechanism 9 comprises: a lifting motor, a lifting screw rod and a lifting slider; wherein,

[0062] The interior of the lifting seat 2 is a hollow structure, and a lifting screw is vertically and rotatably arranged inside it, and a lifting slider that can be lifted and lowered along its shaft is threadedly fixed on the lifting screw. An avoidance groove that is connected to the interior and for the lifting slider to pass through is opened on the side wall of the lifting seat 2 facing the fixed seat 3, and the end portion of the lifting slider passes through the avoidance groove and is fixed on the fixed seat 3. The lifting motor is vertically fixed to the bottom of the lifting seat 2, and its output shaft is coaxially connected to the lifting screw through a coupling.

[0063] In the above scheme, when in use, the lifting motor is started to drive the lifting screw to rotate, and during the rotation of the lifting screw, the lifting slider threadedly connected thereto can be driven to drive the fixing seat 3 and the piling assembly 4 fixed on the fixing seat 3 to be lifted and lowered in the vertical direction along its axis to adjust the height of the piling assembly 4, so that the piling assembly 4 can be used for piling operations on piles of different heights, thereby improving the practicability and reliability of the entire pile driver.

[0064] Therefore, the depth and size of the pile driving can be adjusted by the coordinated use of the lifting mechanism 9 and the pile driving assembly 4 .

[0065] In a preferred embodiment of the present invention, a plurality of pile hammers 403 are detachably mounted on the support plate 401 via fasteners 8, wherein the fasteners 8 include studs 801 and nuts 802;

[0066] At least one stud 801 is spaced apart and vertically fixed on the upper end of the support plate 401 located next to the positioning column 402. Each of the pile hammers 403 is provided with an assembly port adapted to the positioning column 402, and each of the pile hammers 403 is also vertically penetrated with a through hole for the stud 801 to pass through. The stud 801 passes through the corresponding through hole on the pile hammer 403 and is screwed with a nut 802 that can rest against it.

[0067] In the above solution, the diameter of the assembly opening is larger than the diameter of the positioning column 402 .

[0068] When in use, each of the pile hammers 403 is passed through the locating column 402 from above the fastener 8 through the assembly opening, so that the central axis of the pile hammer 403 coincides with the central axis of the locating column 402, and the through hole on each of the pile hammers 403 is aligned with the stud 801, and each of the pile hammers 403 is lowered in the vertical direction and passes through the stud 801 to abut against the support plate 401, and according to actual use, a suitable number of pile hammers 403 are stacked on the support plate 401 according to the above method, and the nut 802 is screwed from the top of the stud 801 onto its shaft, and the nut 802 is rotated to abut against the pile hammer 403 at the uppermost end, thereby completing the assembly.

[0069] Therefore, the pile driving operation for piles of different weights can be performed by increasing or decreasing the number of pile hammers 403 .

[0070] In a preferred embodiment of the present invention, the driving mechanism 10 further comprises: a driving motor for driving the incomplete gear 1002 to rotate; wherein,

[0071] The driving motor is horizontally fixed in the fixing seat 3, and its output shaft is coaxially connected with the end of the central rotating shaft of the incomplete gear 1002 through a coupling.

[0072] In the above scheme, the incomplete gear 1002 is driven to rotate by the driving motor, so that in the process of rotating the incomplete gear 1002 continuously in a certain direction, the incomplete gear 1002 is meshed and connected with the tooth plate 1001, and drives the tooth plate 1001 meshed with it to drive the piling assembly 4 to rise in the vertical direction until the incomplete gear 1002 and the tooth plate 1001 are disengaged. After the incomplete gear 1002 and the tooth plate 1001 are disengaged, the piling assembly 4 descends in the vertical direction under the action of its own gravity to hit the pile body directly below it, so as to gradually extend it into the soil.

[0073] In summary, the water conservancy project construction pile driver provided by the present invention overcomes the problem in the prior art that in actual use, the depth and size of the pile driving will be required to change in different usage scenarios. However, the pile driving depth and size of the existing device cannot be adjusted because the limiting pile driving mechanism is fixedly connected to other parts, thereby reducing the practicality.

[0074] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0075] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0076] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A pile driver for water conservancy project construction, characterized in that: The pile driver comprises: a moving seat (1), a lifting seat (2), a fixed seat (3), a pile driving assembly (4) and a limit block (5); A lifting seat (2) is vertically fixedly arranged on the upper end of the movable seat (1), a fixed seat (3) is horizontally and liftably arranged on the lifting seat (2), a pile driving assembly (4) is liftably arranged below the fixed seat (3), two limit blocks (5) with adjustable spacing and used for clamping workpieces are symmetrically arranged below the fixed seat (3) on both sides of the pile driving assembly (4), and the pile driving assembly (4) comprises: a support plate (401), a positioning column (402) and a pile hammer (403); wherein, A positioning column (402) is vertically and coaxially fixedly arranged on the upper end of the horizontal and liftable support plate (401), and a plurality of pile hammers (403) stacked together are detachably mounted on the support plate (401).

2. The water conservancy engineering construction pile driver according to claim 1, characterized in that: The pile driver also includes a driving mechanism (10) for driving the pile driving assembly (4) to rise and fall in a vertical direction, wherein the driving mechanism (10) includes: a tooth plate (1001) and an incomplete gear (1002); wherein: The interior of the fixed seat (3) is a hollow structure, and a toothed plate (1001) is vertically fixed on the top of the positioning column (402) and can extend from the bottom of the fixed seat (3) and pass through the top thereof. An incomplete gear (1002) meshingly connected to the toothed plate (1001) is horizontally and rotatably arranged inside the fixed seat (3) next to the toothed plate (1001).

3. The water conservancy engineering construction pile driver according to claim 2, characterized in that: The top of the toothed plate (1001) passes through the fixing seat (3) and is horizontally fixedly provided with a fixing plate, and at least one guide rod (11) is vertically fixedly provided on the fixing plate located next to the toothed plate (1001) and is capable of extending from the top of the fixing seat (3) into the interior thereof and passing through the bottom thereof.

4. The water conservancy engineering construction pile driver according to claim 1, characterized in that: The pile driver also includes a distance adjustment mechanism (6) for adjusting the distance between the two limit blocks (5), wherein the distance adjustment mechanism (6) includes: a wedge block (601), a power plate (602), a power rod (603) and a cylinder (604); wherein: Two wedge-shaped blocks (601) are horizontally and movably arranged inside the fixed seat (3) located on both sides of the driving mechanism (10); the two limit blocks (5) are respectively fixed on the two wedge-shaped blocks (601) through two inverted L-shaped connecting arms (7); two guide grooves are respectively opened at the bottom end of the fixed seat (3) and are connected to the inside of the fixed seat and are adapted to the two connecting arms (7); a power plate (602) that can be raised and lowered is horizontally fixedly arranged above the fixed seat (3) through a cylinder (604); Two power rods (603) capable of extending into the interior of the fixed seat (3) are spaced apart and vertically fixed at the bottom end of the power plate (602); a ball capable of abutting against the inclined surface of the corresponding wedge block (601) is rotatably provided at the bottom end of each power rod (603); vertical plates are vertically fixedly provided in the fixed seat (3) at the adjacent ends of the two guide grooves, and each wedge block (601) and the corresponding vertical plate are connected together via a return spring (12).

5. The water conservancy engineering construction pile driver according to claim 1, characterized in that: The pile driver also includes a lifting mechanism (9) for driving the fixed seat (3) to rise and fall on the lifting seat (2), wherein the lifting mechanism (9) includes: a lifting motor, a lifting screw rod and a lifting slider; wherein: The interior of the lifting seat (2) is a hollow structure, and a lifting screw is vertically and rotatably arranged inside the lifting seat. A lifting slider that can be lifted and lowered along its shaft is threadedly fixed on the lifting screw. An escape groove that is connected to the interior and allows the lifting slider to pass through is opened on the side wall of the lifting seat (2) facing the fixed seat (3), and the end portion of the lifting slider passes through the escape groove and is fixed to the fixed seat (3). The lifting motor is vertically fixed to the bottom of the lifting seat (2), and its output shaft is coaxially connected to the lifting screw through a coupling.

6. The water conservancy engineering construction pile driver according to claim 1, characterized in that: A plurality of pile hammers (403) are detachably mounted on the support plate (401) via fasteners (8), wherein the fasteners (8) include: studs (801) and nuts (802); wherein: At least one stud (801) is arranged at intervals and vertically fixed on the upper end of the support plate (401) located beside the positioning column (402), and each of the pile hammers (403) is provided with an assembly opening adapted to the positioning column (402), and each of the pile hammers (403) is also provided with a through hole vertically penetrated therethrough for the stud (801) to pass through, and the stud (801) passes through the corresponding through hole on the pile hammer (403) and is screwed with a nut (802) capable of resting thereon.

7. The water conservancy engineering construction pile driver according to claim 2, characterized in that: The driving mechanism (10) further comprises: a driving motor for driving the incomplete gear (1002) to rotate; wherein: The driving motor is fixed horizontally in the fixing seat (3), and its output shaft is coaxially connected to the end of the central rotating shaft of the incomplete gear (1002) through a coupling.

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