Pile driving device convenient to adjust fixed size and used for pile foundation engineering

Abstract

The invention relates to the technical field of pile machine equipment, in particular to a pile driving device capable of conveniently adjusting the fixed size and used for pile foundation engineering. Comprising a top plate, a first through hole is formed in the center of the top plate, a pile hammer mechanism penetrating through the interior of the first through hole is installed on the upper surface of the top plate, a bottom plate is fixedly connected to the lower portion of the top plate, and a second through hole corresponding to the pile hammer mechanism is formed in the center of the bottom plate; an adjusting mechanism in transmission connection with the fixing mechanism is arranged on the bottom plate. According to the pile driving device, the fixing mechanism can be adjusted through the adjusting mechanism, so that the fixing mechanism can fix the foundation piles of different sizes and shapes, the pile hammer mechanism can be used for conducting pile driving operation on the foundation piles of different sizes and shapes, and through the design, the fixed size of the pile driving device has the adjustable performance; and therefore, various complex and changeable engineering conditions can be better adapted, and the construction efficiency and quality can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of pile driver equipment, and in particular to a pile driving device for pile foundation engineering which is convenient for adjusting fixed size. Background Art

[0002] In the field of construction engineering, piling is a key step in building foundations. Different construction projects have diverse requirements for pile foundations, including different types and sizes. However, traditional piling devices often face the problem of fixed sizes that are difficult to flexibly adjust, which exposes limitations when faced with construction requirements for pile foundations of different specifications.

[0003] In the related art, some piling devices can only adapt to a specific range of sizes. Once a pile exceeds this range, other specialized devices need to be replaced, which not only increases the cost and complexity of operation, but also seriously affects the construction progress. Moreover, due to the large differences in the size and shape of piles in different projects, the lack of good fixed size adjustability will require the construction party to prepare a variety of different piling devices to cope with it, which takes up a lot of resources and space.

[0004] Therefore, how to achieve adjustable performance of the fixed size of the piling device is not only the key to better adapt to various complex and changeable engineering conditions and improve the efficiency and quality of construction, but also a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In order to achieve adjustable performance of the fixed size of the piling device, so as to better adapt to various complex and changeable engineering conditions and improve the efficiency and quality of construction, the present application provides a piling device for pile foundation engineering with easy adjustable fixed size.

[0006] The present application provides a pile driving device for pile foundation engineering that is easy to adjust the fixed size and adopts the following technical solution: A piling device for pile foundation engineering that is easy to adjust and fix in size, comprises a top plate, a first through hole is opened in the center of the top plate, a pile hammer mechanism that passes through the first through hole is installed on the upper surface of the top plate, a bottom plate is fixedly connected below the top plate, a second through hole is opened in the center of the bottom plate corresponding to the pile hammer mechanism, a fixing mechanism for fixing the foundation pile is provided on the lower surface of the bottom plate, and an adjustment mechanism is provided on the bottom plate that is transmission-connected to the fixing mechanism.

[0007] By adopting the above technical solution, the fixing mechanism can be adjusted by the adjusting mechanism, so that the fixing mechanism can fix the foundation piles of different sizes and shapes. Therefore, the pile hammer mechanism can be used to perform pile driving operations on the foundation piles of different sizes and shapes. This design realizes that the fixed size of the pile driving device has adjustable performance, so that it can better adapt to various complex and changeable engineering conditions, which is conducive to improving construction efficiency and quality.

[0008] Optionally, the pile hammer mechanism includes a guide cylinder, which is coaxially arranged with the first through hole, and is installed on the upper surface of the top plate. The interior of the guide cylinder is sealingly and slidably connected with a first piston body, and the lower end surface of the first piston body is fixedly connected with a pile hammer, the center of the pile hammer is coaxial with the center of the second through hole, and a driving assembly is provided on the outer side of the pile hammer.

[0009] By adopting the above technical solution, the guide cylinder can be used to guide the first piston body to slide, and the first piston body can drive the pile hammer to move synchronously during the sliding process. The pile hammer will generate downward inertia during the downward movement, and the downward inertia will generate a downward thrust on the top plate and the bottom plate. The bottom plate will transmit the downward thrust to the foundation pile through the fixing mechanism, thereby causing the foundation pile to sink. The driving component drives the pile hammer to make the pile hammer slide back and forth along the guide cylinder, thereby realizing the continuous sinking of the foundation pile.

[0010] Optionally, the driving assembly includes a motor, a driving shaft is coaxially fixedly connected to the output shaft of the motor, a driving gear is mounted on the driving shaft, a toothless portion is provided on the driving gear, and a rack is fixedly connected to the outer side surface of the pile hammer along its length direction, and the rack is meshed with the driving gear.

[0011] By adopting the above technical solution, the motor can drive the driving shaft to rotate, and the driving shaft will drive the driving gear to rotate synchronously when rotating. The driving gear can drive the rack and the pile hammer to move upward by rotating in a set direction during the rotation process. When the driving gear rotates to the toothless portion, the driving gear will separate from the rack, and the pile hammer will automatically fall downward under the action of gravity. The pile hammer will generate downward inertia during the falling process, and the downward inertia will generate downward thrust on the top plate and the bottom plate. The bottom plate will transmit the downward thrust to the foundation pile through the fixing mechanism, thereby realizing non-contact hammering of the foundation pile. When the driving gear is meshed with the rack again, the driving gear will drive the rack and the pile hammer to move upward again, so that the gravity of the pile hammer can be used to repeatedly perform non-contact hammering on the foundation pile until the pile foundation operation is completed.

[0012] Optionally, a first spring is provided between the upper end surface of the first piston body and the inner end surface of the guide cylinder, the upper end of the first spring is fixedly connected to the inner end surface of the guide cylinder, and the lower end of the first spring is fixedly connected to the upper end surface of the first piston body.

[0013] By adopting the above technical solution, the first spring can store force in the process of the rack and the pile hammer moving upwards. When the driving gear is separated from the rack, the force stored in the first spring will be released instantly, thereby pushing the pile hammer to fall rapidly downward. This can increase the force and speed of pushing the foundation pile, which is conducive to improving the efficiency of pile foundation construction.

[0014] Optionally, the fixing mechanism includes a plurality of rocker arms symmetrically arranged with respect to the center of the second through hole, the upper ends of the rocker arms being hingedly connected to the lower surface of the base plate, a fixing plate being installed on the side of the rocker arm facing the center of the second through hole near the lower end of the rocker arm, and the adjusting mechanism being used to adjust the swing angle of the rocker arm.

[0015] By adopting the above technical solution and using the adjustment mechanism to adjust the swing angle of the swing arm, the plurality of swing arms can push the fixing plate to clamp and fix the foundation pile, and the plurality of swing arms symmetrically arranged at the center can automatically adjust the center of the foundation pile to coincide with the center of the second through hole during the process of clamping and fixing the foundation pile. At the same time, since the center of the second through hole is coaxial with the center of the pile hammer, when the pile hammer intermittently pushes the foundation pile, the force applied by the pile hammer to the foundation pile will be more stable, which is beneficial to ensuring the effect of pile foundation construction.

[0016] Optionally, the fixed plate is hingedly connected to the rocker arm, and a fixed block is detachably connected to a side of the fixed plate facing the base pile, and a surface of the fixed block facing the base pile is provided with uniformly dense anti-skid grooves, and the anti-skid grooves are arranged in a herringbone shape, and the fixed block is made of an elastic material with a certain structural strength.

[0017] By adopting the above technical solution, the elastic characteristic of the fixing block can be utilized to increase the fitting area between the fixing plate and the foundation pile, and the anti-skid grooves provided on the surface of the fixing block can be utilized to increase the friction between the fixing plate and the foundation pile, thereby enabling the fixing plate to fix the foundation pile more stably and reliably, further improving the safety and stability during the pile foundation construction process.

[0018] Optionally, the adjustment mechanism includes an adjustment ring, which is slidably connected to the side of the rocker arm away from the center of the second through hole, and a plurality of telescopic parts are installed on the adjustment ring, which are centrally symmetrically arranged with the center of the second through hole, and the fixed end of the telescopic part is fixedly connected to the top plate, and the telescopic end of the telescopic part is fixedly connected to the adjustment ring.

[0019] By adopting the above technical solution, the telescopic member can be used to drive the adjusting ring to move up and down. During the downward movement of the adjusting ring, the sliding connection between the adjusting ring and the swing rod can unidirectionally push the lower end of the swing rod to swing toward the center of the pile, thereby enabling the fixing plate to stably and reliably clamp and fix the pile.

[0020] Optionally, the telescopic member includes a piston cylinder, the upper end of the piston cylinder is fixedly connected to the lower surface of the top plate, the lower end of the piston cylinder passes through the bottom plate, the inside of the piston cylinder is sealingly and slidably connected with a second piston body, the lower end surface of the second piston body is fixedly connected with a second spring, the lower end of the second spring is fixedly connected with a piston rod, and the end of the piston rod away from the second piston body is fixedly connected to the adjusting ring.

[0021] By adopting the above technical solution, the second piston body can drive the second spring and the piston rod to push the adjusting ring to move. During the working process, it is only necessary to inject high-pressure air into the space inside the piston cylinder located at the upper end of the second piston body to push the second piston body to move downward. After the second piston body moves downward, it will compress the second spring, and then the second spring drives the piston rod to push the adjusting ring to swing the swing arm and drive the fixed plate to clamp the foundation pile. The second spring can effectively absorb the vibration generated by the pile hammer during work, thereby achieving the purpose of preventing the adjusting ring from loosening.

[0022] Optionally, a slide rod is fixedly connected to the adjustment ring, a slide groove is provided on a side of the swing rod close to the adjustment ring corresponding to the slide rod, and the slide rod can be slidably clamped inside the slide groove.

[0023] By adopting the above technical solution, the slide bar can be slidably clamped in the slide groove to realize the bidirectional adjustment of the swing angle of the swing rod by the adjustment ring, that is, when the adjustment ring moves downward, the swing rod can be driven to swing inward, thereby clamping and fixing the foundation pile. When the adjustment ring moves upward, the swing rod can be driven to swing outward, thereby loosening the clamping and fixing of the foundation pile, so that the pile driving device can be removed from the foundation pile as a whole after the pile foundation operation is completed.

[0024] Optionally, an outer shell is detachably connected between the top plate and the bottom plate, and a plurality of lifting rings which are centrally symmetrically arranged with respect to the center of the top plate are fixedly connected to the top surface of the top plate.

[0025] By adopting the above technical solution, the outer shell can not only increase the connection strength between the top plate and the bottom plate, but also protect the components installed between the top plate and the bottom plate. The lifting ring fixedly connected to the top plate can enable the pile driving device to be conveniently hoisted by external hoisting equipment during the working process.

[0026] Beneficial effects achieved: The present application can adjust the fixing mechanism through the adjusting mechanism, so that the fixing mechanism can fix the foundation piles of different sizes and shapes. Therefore, the pile hammer mechanism can be used to perform piling operations on the foundation piles of different sizes and shapes. This design realizes that the fixed size of the piling device has adjustable performance, so that it can better adapt to various complex and changeable engineering conditions, which is conducive to improving construction efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the usage status structure of an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the internal structure of the first direction of an embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the internal structure of the second direction of an embodiment of the present application.

[0030] Figure 4 yes Figure 2 An enlarged schematic diagram of the structure of Part 1.

[0031] Figure 5 It is a schematic diagram of the assembly state structure of an embodiment of the present application.

[0032] Figure 6 It is a schematic diagram of the internal structure of an embodiment of the present application in the usage state.

[0033] Figure 7 yes Figure 2 An enlarged schematic diagram of the structure of Part 2.

[0034] Figure 8 yes Figure 6 An enlarged schematic diagram of the structure of Part 3.

[0035] Description of reference numerals: 100, top plate; 101, first through hole; 102, screw rod; 200, pile hammer mechanism; 201, guide tube; 202, first piston body; 203, pile hammer; 204, first spring; 205, high pressure conduit; 206, one-way valve; 207, electric control pressure regulating valve; 300, bottom plate; 301, second through hole; 400, foundation pile; 500, fixing mechanism; 501, swing rod; 502, fixing plate; 503, fixing block; 504, Anti-slip groove; 600, adjustment mechanism; 601, adjustment ring; 602, telescopic member; 6021, piston cylinder; 6022, second piston body; 6023, second spring; 6024, piston rod; 603, slide rod; 604, slide groove; 700, drive assembly; 701, motor; 702, drive shaft; 703, drive gear; 704, toothless portion; 705, mounting groove; 706, rack; 800, outer shell; 900, lifting ring; d, sealing distance. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-8 This application is described in further detail.

[0037] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] The embodiment of the present application discloses a pile driving device for pile foundation engineering that is easy to adjust and fix in size.

[0040] Please refer to Figure 1 In one embodiment of the present application, a pile driving device for pile foundation engineering that is easy to adjust and fix in size includes a top plate 100, a first through hole 101 is opened in the center of the top plate 100, a pile hammer mechanism 200 that passes through the first through hole 101 is installed on the upper surface of the top plate 100, a bottom plate 300 is fixedly connected below the top plate 100, a second through hole 301 is opened in the center of the bottom plate 300 corresponding to the pile hammer mechanism 200, a fixing mechanism 500 for fixing a foundation pile 400 is provided on the lower surface of the bottom plate 300, and an adjusting mechanism 600 that is transmission-connected to the fixing mechanism 500 is provided on the bottom plate 300. The fixing mechanism 500 can be adjusted by using the adjusting mechanism 600, so that the fixing mechanism 500 can fix the foundation piles 400 of different sizes and shapes, and then the pile hammer mechanism 200 can be used to perform pile driving operations on the foundation piles 400 of different sizes and shapes. This design realizes that the fixed size of the pile driving device has adjustable performance, so that it can better adapt to various complex and changeable engineering conditions, which is conducive to improving construction efficiency and quality.

[0041] Please refer to Figure 1 In one embodiment of the present application, an outer shell 800 is detachably connected between the top plate 100 and the bottom plate 300. The outer shell 800 can not only increase the connection strength between the top plate 100 and the bottom plate 300, but also protect the components installed between the top plate 100 and the bottom plate 300.

[0042] Please refer to Figure 1 and Figure 5 In one embodiment of the present application, a plurality of lifting rings 900 are fixedly connected to the top surface of the top plate 100 and are arranged symmetrically with respect to the center of the top plate 100. The lifting rings 900 fixedly connected to the top plate 100 enable the pile driving device to be conveniently hoisted by external hoisting equipment during the working process.

[0043] Please refer to Figure 1 and Figure 2In one embodiment of the present application, the pile hammer mechanism 200 includes a guide cylinder 201, which is coaxially arranged with the first through hole 101. The upper surface of the top plate 100 is fixedly welded with a screw 102 in a centrally symmetrical manner with the center of the first through hole 101. The guide cylinder 201 is fixedly installed on the screw 102 on the upper surface of the top plate 100 by a flange structure in a nut locking manner. The interior of the guide cylinder 201 is sealingly and slidably connected with the first piston body 202, and the lower end surface of the first piston body 202 is fixedly welded with a pile hammer 203. The center of the pile hammer 203 is coaxial with the center of the second through hole 301, and the outer side of the pile hammer 203 is provided with a driving assembly 700. The guide cylinder 201 can be used to guide the first piston body 202 to slide. The first piston body 202 can drive the pile hammer 203 to move synchronously during the sliding process. The pile hammer 203 will generate downward inertia during the downward movement. The downward inertia will generate a downward thrust on the top plate 100 and the bottom plate 300. The bottom plate 300 will transmit the downward thrust to the pile 400 through the fixing mechanism 500, so that the pile 400 sinks. The driving component 700 drives the pile hammer 203 to make the pile hammer 203 slide back and forth along the guide cylinder 201, thereby pushing the pile 400 to sink continuously.

[0044] Please refer to Figure 2 and Figure 3In one embodiment of the present application, the driving assembly 700 includes a motor 701, which is fixedly mounted on the lower surface of the top plate 100 by screw locking. The output shaft of the motor 701 is coaxially fixedly connected with a driving shaft 702 through a coupling. The motor 701 can drive the driving shaft 702 to rotate. A driving gear 703 is installed on the driving shaft 702. When the driving shaft 702 rotates, it will drive the driving gear 703 to rotate synchronously. A toothless portion 704 is provided on the driving gear 703. A mounting groove 705 is provided on the outer side surface of the pile hammer 203 along its length direction. A rack 706 is fixedly embedded in the mounting groove 705, and the rack 706 is meshed with the driving gear 703. When the driving gear 703 rotates in the set direction during operation, the rack 706 and the pile hammer 203 can be driven to move upward. When the driving gear 703 rotates to the toothless portion 704, the driving gear 703 will be separated from the rack 706, and the pile hammer 203 will automatically fall downward under the action of gravity. The pile hammer 203 will generate downward inertia during the falling process, and the downward inertia will generate a downward thrust on the top plate 100 and the bottom plate 300. The bottom plate 300 will transmit the downward thrust to the foundation pile 400 through the fixing mechanism 500, thereby realizing non-contact hammering of the foundation pile 400, thereby causing the foundation pile 400 to sink. When the driving gear 703 is meshed with the rack 706 again, the driving gear 703 will drive the rack 706 and the pile hammer 203 to move upward again. In this way, the gravity of the pile hammer 203 can be used to repeatedly perform non-contact hammering on the foundation pile 400 until the pile foundation operation is completed.

[0045] Please refer to Figure 2 and Figure 3 In one embodiment of the present application, a first spring 204 is provided between the upper end surface of the first piston body 202 and the inner end surface of the guide cylinder 201, the upper end of the first spring 204 is fixedly connected to the inner end surface of the guide cylinder 201, and the lower end of the first spring 204 is fixedly connected to the upper end surface of the first piston body 202. The first spring 204 can store force during the upward movement of the rack 706 and the pile hammer 203. When the driving gear 703 is separated from the rack 706, the force stored in the first spring 204 is released instantly, thereby pushing the pile hammer 203 to fall rapidly downward, which can increase the force and speed of pushing the foundation pile 400, which is conducive to improving the efficiency of pile foundation construction.

[0046] Please refer to Figure 2 and Figure 3In one embodiment of the present application, the fixing mechanism 500 includes a plurality of swing rods 501 arranged symmetrically with respect to the center of the second through hole 301, the upper end of the swing rod 501 is hingedly connected to the lower surface of the bottom plate 300 through a hinge shaft, a fixing plate 502 is installed on the side of the swing rod 501 facing the center of the second through hole 301 near the lower end of the swing rod 501, and the adjustment mechanism 600 can adjust the swing angle of the swing rod 501. In this way, the plurality of swing rods 501 can push the fixing plate 502 to clamp and fix the foundation pile 400, and the plurality of swing rods 501 arranged symmetrically can automatically adjust the center of the foundation pile 400 to coincide with the center of the second through hole 301 during the process of clamping and fixing the foundation pile 400. At the same time, since the center of the second through hole 301 is coaxial with the center of the pile hammer 203, when the pile hammer 203 intermittently pushes the foundation pile 400, the force applied by the pile hammer 203 to the foundation pile 400 will be more stable, which is conducive to ensuring the effect of pile foundation construction.

[0047] Please refer to Figure 2 and Figure 4 In a specific embodiment of the present application, the fixed plate 502 is hingedly connected to the rocker arm 501. The hinged connection between the fixed plate 502 and the rocker arm 501 can enable the fixed plate 502 to automatically cooperate with the swing of the rocker arm 501 and fit on the surface of the pile 400 during operation, thereby increasing the stability and reliability of the fixed plate 502 in clamping and fixing the pile 400.

[0048] Please refer to Figure 4 In a specific embodiment of the present application, a fixing block 503 is detachably connected to a side of the fixing plate 502 facing the foundation pile 400, and the fixing block 503 is made of an elastic material with a certain structural strength, such as rubber, silicone, and a synthetic material of rubber or silicone. The elasticity of the fixing block 503 can increase the fitting area between the fixing plate 502 and the foundation pile 400.

[0049] In a specific embodiment of the present application, the shape of the fixing block 503 facing the pile 400 corresponds to the external shape of the cylindrical pile 400, that is, corresponding to the cylindrical pile 400, the side of the fixing block 503 facing the pile 400 is set to an arc shape, and corresponding to the square pile 400, the side of the fixing block 503 facing the pile 400 is set to a plane, so that the fixing plate 502 and the pile 400 can fit more perfectly, which is beneficial to increase the clamping force of the fixing plate 502 on the pile 400.

[0050] Please refer to Figure 2 and Figure 4In one embodiment of the present application, a surface of the fixed block 503 facing the foundation pile 400 is provided with uniformly distributed anti-skid grooves 504, and the anti-skid grooves 504 are arranged in a herringbone shape. The anti-skid grooves 504 provided on the surface of the fixed block 503 can increase the friction between the fixed plate 502 and the foundation pile 400, thereby enabling the fixed plate 502 to fix the foundation pile 400 more stably and reliably, further improving the safety and stability during the pile foundation construction process.

[0051] Please refer to Figure 2 and Figure 5 In one embodiment of the present application, the adjustment mechanism 600 includes an adjustment ring 601, which is slidably connected to the side of the swing rod 501 away from the center of the second through hole 301. The adjustment ring 601 is equipped with a plurality of telescopic members 602 which are centrally symmetrically arranged with respect to the center of the second through hole 301. The fixed end of the telescopic member 602 is fixedly connected to the top plate 100, and the telescopic end of the telescopic member 602 is fixedly connected to the adjustment ring 601. The telescopic member 602 can move the adjustment ring 601 up and down by telescoping. In the process of moving downward, the adjustment ring 601 can push the lower end of the swing rod 501 to swing toward the center of the foundation pile 400 in a unidirectional manner through the sliding connection between the adjustment ring 601 and the swing rod 501, so that the fixed plate 502 can stably and reliably clamp and fix the foundation pile 400.

[0052] Please refer to Figure 5 and Figure 6 In one embodiment of the present application, the telescopic member 602 includes a piston cylinder 6021, the upper end of the piston cylinder 6021 is fixedly connected to the lower surface of the top plate 100, the lower end of the piston cylinder 6021 penetrates the bottom plate 300, the piston cylinder 6021 is sealed and slidably connected with a second piston body 6022 inside, a second spring 6023 is fixedly connected to the lower end surface of the second piston body 6022, a piston rod 6024 is fixedly connected to the lower end of the second spring 6023, and one end of the piston rod 6024 away from the second piston body 6022 is fixedly connected to the adjusting ring 601. The second piston body 6022 can drive the second spring 6023 and the piston rod 6024 to push the adjusting ring 601 to move. During operation, it is only necessary to inject high-pressure air into the space at the upper end of the second piston body 6022 inside the piston cylinder 6021 to push the second piston body 6022 to move downward. After the second piston body 6022 moves downward, it will compress the second spring 6023, and then the second spring 6023 will drive the piston rod 6024 to push the adjusting ring 601 to swing the swing rod 501 and drive the fixing plate 502 to clamp the foundation pile 400. The second spring 6023 can effectively absorb the vibration generated by the pile hammer 203 during operation, so as to prevent the adjusting ring 601 from loosening.

[0053] Please refer to Figure 2 and Figure 7 In one embodiment of the present application, a sliding rod 603 in a T-shape is fixedly connected to the adjusting ring 601, and a sliding groove 604 is provided on the side of the swing rod 501 close to the adjusting ring 601 corresponding to the sliding rod 603. The sliding groove 604 is set in a T-shape corresponding to the shape of the sliding rod 603, and the sliding rod 603 is slidably clamped inside the sliding groove 604. By slidably clamping the sliding rod 603 inside the sliding groove 604, the swing angle of the swing rod 501 can be adjusted in both directions by the adjusting ring 601, that is, when the adjusting ring 601 moves downward, the swing rod 501 can be driven to swing inward, thereby clamping and fixing the pile 400. When the adjusting ring 601 moves upward, the swing rod 501 can be driven to swing outward, thereby loosening the clamping and fixing of the pile 400, so that the pile driving device can be removed from the pile 400 as a whole after the pile foundation operation is completed.

[0054] Please refer to Figure 6 and Figure 8 In one embodiment of the present application, a high-pressure conduit 205 is sealed and fixedly connected between the guide cylinder 201 and the piston cylinder 6021, and one end of the high-pressure conduit 205 close to the guide cylinder 201 is connected to a position close to the bottom of the guide cylinder 201, and one end of the high-pressure conduit 205 close to the piston cylinder 6021 is connected to a position close to the top of the piston cylinder 6021. A one-way valve 206 is sealed and fixedly connected in series on the high-pressure conduit 205, that is, the rod chamber of the guide cylinder 201 and the rodless chamber of the piston cylinder 6021 are sealed and connected in one way. During operation, when the pile hammer 203 moves downward, the air inside the rod chamber of the guide cylinder 201 will enter the rodless chamber of the piston cylinder 6021, thereby pushing the second piston body 6022 to move downward. After the second piston body 6022 moves downward, the clamping force of the fixing plate 502 on the pile foundation 400 will be increased.

[0055] Please refer to Figure 6 and Figure 8 In one embodiment of the present application, an electrically controlled pressure regulating valve 207 is fixedly and sealably installed on the piston cylinder 6021. The electrically controlled pressure regulating valve 207 is sealed and connected to a position on the piston cylinder 6021 near its top. The pressure inside the rodless cavity of the piston cylinder 6021 can be adjusted by the electrically controlled pressure regulating valve 207, and the clamping force of the fixed plate 502 on the pile 400 can be controlled by setting the maximum pressure value of the electrically controlled pressure regulating valve 207.

[0056] Please refer to Figure 3In one embodiment of the present application, a set sealing distance d is retained between the top of the mounting groove 705 and the lower end surface of the first piston body 202, that is, after the mounting groove 705 enters the interior of the guide cylinder 201, the air inside the rod chamber of the guide cylinder 201 is connected to the atmosphere. When the first piston body 202 moves downward, the mounting groove 705 moves out to the outside of the guide cylinder 201, and the first piston body 202 will enter the sealing distance d, and the second piston body 6022 can compress the air inside the rod chamber of the guide cylinder 201, and then inject the compressed air into the rodless chamber of the piston cylinder 6021 through the high-pressure conduit 205.

[0057] The implementation principle of a pile driving device for pile foundation engineering that is easy to adjust the fixed size in the embodiment of the present application is: When in use, firstly, the pile driving device is mounted on the top of the foundation pile 400, and then the motor 701 is started. The motor 701 will drive the driving shaft 702 and the driving gear 703 to rotate in a set direction, and the driving gear 703 can drive the rack 706 and the pile hammer 203 to move away from the foundation pile 400. When the driving gear 703 rotates to the toothless portion 704, the driving gear 703 will separate from the rack 706, and the first piston body 202 will drive the pile hammer 203 to move rapidly towards the foundation pile 400 under the action of the first spring 204.

[0058] When the pile hammer 203 moves rapidly toward the direction close to the foundation pile 400, when the mounting groove 705 on the pile hammer 203 moves out of the guide cylinder 201, the first piston body 202 will enter the sealing distance d, and the first piston body 202 can compress the air inside the rod chamber of the guide cylinder 201, and then inject the compressed air into the rodless chamber of the piston cylinder 6021 through the high-pressure conduit 205. After the pressure inside the rodless chamber of the piston cylinder 6021 increases, the second piston body 6022 will be pushed to move toward the direction close to the piston rod 6024. After the second piston body 6022 moves toward the direction close to the piston rod 6024, the piston rod 6024 will push the adjustment ring 601 to move toward the lower end of the swing rod 501, thereby increasing the clamping force of the fixed plate 502 on the foundation pile 400. The clamping force of the fixed plate 502 on the foundation pile 400 is adjusted by the electric-controlled pressure regulating valve 207.

[0059] After the fixing plate 502 clamps and fixes the foundation pile 400, the motor 701 is paused, and then the pile driving device and the foundation pile 400 are hoisted to the construction site as a whole through the lifting ring 900 using external lifting equipment, the foundation pile 400 is adjusted to the construction direction, and the motor 701 is started again. The motor 701 will drive the driving shaft 702 and the driving gear 703 to rotate in the set direction, and the driving gear 703 will be able to drive the rack 706 and the pile hammer 203 to move upward. When the driving gear 703 rotates to the toothless part 704, the driving gear 703 will separate from the rack 706, and the first piston body 202 will drive the pile hammer 203 to move rapidly downward under the action of the first spring 204.

[0060] The pile hammer 203 will generate downward inertia during the downward movement, and the downward inertia will generate downward thrust on the top plate 100 and the bottom plate 300. The bottom plate 300 will transfer the downward thrust to the foundation pile 400 through the fixing mechanism 500, thereby causing the foundation pile 400 to sink.

[0061] When the foundation pile 400 sinks to the design requirement of the construction, the rotation of the motor 701 is stopped, and then the pressure inside the rodless chamber of the piston cylinder 6021 is relieved through the electronically controlled pressure regulating valve 207. After the pressure inside the rodless chamber of the piston cylinder 6021 is relieved, the piston rod 6024 will release the push on the adjusting ring 601, and the adjusting ring 601 will also release the push on the rocker arm 501, and the rocker arm 501 will drive the fixing plate 502 to release the clamping of the foundation pile 400. At this time, the entire piling device can be conveniently removed from the foundation pile 400 through the lifting equipment.

[0062] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pile driving device for pile foundation engineering that is easy to adjust and fix in size, characterized in that: The invention comprises a top plate (100), wherein a first through hole (101) is provided at the center of the top plate (100), a pile hammer mechanism (200) penetrating the first through hole (101) is installed on the upper surface of the top plate (100), a bottom plate (300) is fixedly connected below the top plate (100), a second through hole (301) is provided at the center of the bottom plate (300) corresponding to the pile hammer mechanism (200), a fixing mechanism (500) for fixing a foundation pile (400) is provided on the lower surface of the bottom plate (300), and an adjusting mechanism (600) is provided on the bottom plate (300) and is transmission-connected to the fixing mechanism (500).

2. A pile driving device for pile foundation engineering that is easy to adjust and fix in size according to claim 1, characterized in that: The pile hammer mechanism (200) comprises a guide cylinder (201), the guide cylinder (201) being coaxially arranged with the first through hole (101), the guide cylinder (201) being mounted on the upper surface of the top plate (100), the interior of the guide cylinder (201) being sealingly and slidably connected with a first piston body (202), the lower end surface of the first piston body (202) being fixedly connected with a pile hammer (203), the center of the pile hammer (203) being coaxial with the center of the second through hole (301), and a driving assembly (700) being arranged on the outer side surface of the pile hammer (203).

3. A pile driving device for pile foundation engineering that is easy to adjust and fix in size according to claim 2, characterized in that: The driving assembly (700) comprises a motor (701), the output shaft of the motor (701) is coaxially fixedly connected to a driving shaft (702), the driving shaft (702) is mounted with a driving gear (703), the driving gear (703) is provided with a toothless portion (704), and the outer side surface of the pile hammer (203) is fixedly connected to a rack (706) along its length direction, and the rack (706) is meshed with the driving gear (703).

4. A pile driving device for pile foundation engineering that is easy to adjust and fix in size according to claim 2, characterized in that: A first spring (204) is provided between the upper end surface of the first piston body (202) and the inner end surface of the guide cylinder (201); the upper end of the first spring (204) is fixedly connected to the inner end surface of the guide cylinder (201); and the lower end of the first spring (204) is fixedly connected to the upper end surface of the first piston body (202).

5. The pile driving device for pile foundation engineering with easy adjustment of fixed size according to claim 2, characterized in that: The fixing mechanism (500) comprises a plurality of swing rods (501) arranged symmetrically about the center of the second through hole (301); the upper ends of the swing rods (501) are hingedly connected to the lower surface of the bottom plate (300); a fixing plate (502) is installed on the side of the swing rod (501) facing the center of the second through hole (301) and close to the lower end of the swing rod (501); and the adjusting mechanism (600) is used to adjust the swing angle of the swing rod (501).

6. A pile driving device for pile foundation engineering that is easy to adjust and fix in size according to claim 5, characterized in that: The fixing plate (502) is hingedly connected to the swing rod (501); a fixing block (503) is detachably connected to a side of the fixing plate (502) facing the foundation pile (400); a surface of the fixing block (503) facing the foundation pile (400) is provided with uniformly dense anti-skid grooves (504); the anti-skid grooves (504) are arranged in a herringbone shape; and the fixing block (503) is made of an elastic material with a certain structural strength.

7. A pile driving device for pile foundation engineering that is easy to adjust and fix in size according to claim 5, characterized in that: The adjustment mechanism (600) comprises an adjustment ring (601), the adjustment ring (601) being slidably connected to a side surface of the swing rod (501) away from the center of the second through hole (301), the adjustment ring (601) being mounted with a plurality of telescopic members (602) arranged symmetrically about the center of the second through hole (301), the fixed ends of the telescopic members (602) being fixedly connected to the top plate (100), and the telescopic ends of the telescopic members (602) being fixedly connected to the adjustment ring (601).

8. A pile driving device for pile foundation engineering that is easy to adjust and fix in size according to claim 7, characterized in that: The telescopic member (602) comprises a piston cylinder (6021), the upper end of the piston cylinder (6021) is fixedly connected to the lower surface of the top plate (100), the lower end of the piston cylinder (6021) passes through the bottom plate (300), the piston cylinder (6021) is sealingly and slidably connected to a second piston body (6022) inside, a second spring (6023) is fixedly connected to the lower end surface of the second piston body (6022), the lower end of the second spring (6023) is fixedly connected to a piston rod (6024), and the end of the piston rod (6024) away from the second piston body (6022) is fixedly connected to the adjustment ring (601).

9. The pile driving device for pile foundation engineering with easy adjustment of fixed size according to claim 7, characterized in that: The adjusting ring (601) is fixedly connected to a slide bar (603), and a slide groove (604) is provided on a side surface of the swing rod (501) close to the adjusting ring (601) corresponding to the slide bar (603), and the slide bar (603) is slidably clamped inside the slide groove (604).

10. A pile driving device for pile foundation engineering with easy adjustment of fixed size according to any one of claims 1 to 9, characterized in that: An outer shell (800) is detachably connected between the top plate (100) and the bottom plate (300), and a plurality of hanging rings (900) arranged symmetrically with respect to the center of the top plate (100) are fixedly connected to the top surface of the top plate (100).

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