Pile driver with buffer device
By designing a buffer device on the pile driver, the impact force of the pile column is buffered by the buffer components and moving components, which solves the problems of pile damage and equipment vibration caused by excessive impact force, and realizes equipment protection and service life extension.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-03-31
AI Technical Summary
Existing pile drivers suffer from excessive impact force during use, leading to pile damage and excessive equipment vibration, which affects equipment lifespan and construction progress.
A pile driver with a buffer device was designed, including a buffer assembly and a moving assembly. Through the cooperation of a buffer spring and a pneumatic block, the downward and upward movement of the pile column is buffered, reducing the impact force on the equipment.
It effectively prevents pile driving columns from being damaged by excessive impact force, reduces damage and deformation of equipment parts, extends equipment service life, and ensures the stability and progress of construction.
Smart Images

Figure CN224063420U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pile driver technology, specifically a pile driver with a buffer device. Background Technology
[0002] A pile driver is a mechanical device used in the construction of pile foundations in buildings, bridges, docks and other engineering projects. Its main function is to drive piles (such as wooden piles, concrete piles, steel piles, etc.) into the ground to improve the bearing capacity of the foundation and ensure the stability of buildings and other structures.
[0003] However, existing pile drivers generate impact forces during pile driving that react on the equipment itself, especially critical components such as the pile hammer and pile frame. Prolonged exposure to such high-intensity and frequent impacts can easily lead to fatigue damage in these components, such as accelerated wear of the pile hammer and deformation of the pile frame structure. Damage to these equipment components not only increases maintenance costs and replacement frequency but can also delay construction progress due to equipment failure, affecting the overall construction schedule.
[0004] In view of this, we propose a pile driver with a buffer device. Utility Model Content
[0005] The purpose of this utility model is to provide a pile driver with a buffer device, which solves the problems of pile damage and excessive equipment vibration caused by excessive impact force when the pile is driven downward or reset upward.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A pile driver with a buffer device includes a body, a support frame fixedly installed on the outside of the body, a telescopic cylinder fixedly installed on the top of the body, and a pile driving column fixedly installed at the bottom of the telescopic cylinder, the pile driving column being slidably connected to the bottom of the body.
[0008] It also includes a buffering component for buffering when the main body is used;
[0009] Move the component to improve the buffering effect of the main body;
[0010] The buffer assembly includes: a fixed ring, which is fixedly installed on the surface of the main body; a fixed block is fixedly installed on the outer side of the main body; a pneumatic block is fixedly installed inside the fixed block; an abutment block is slidably connected inside the pneumatic block; one end of a movable rod is connected to the surface of the abutment block; the other end of the movable rod is connected to the bottom of the fixed ring; a second movable rod is hinged to the surface of the abutment block; and a slip ring is hinged to the other end of the second movable rod. The slip ring is fixedly installed on the surface of the piling column.
[0011] Preferably, a connecting column is fixedly installed on the outer side of the main body, a connecting ring is fixedly installed on the inner side of the connecting column, a support column is slidably connected inside the connecting ring, a slide rod is slidably connected inside the support column, the slide rod is fixedly installed at the bottom of the slide ring, a buffer spring is fixedly installed on the surface of the slide rod, and the buffer spring is fixedly installed at the bottom of the slide ring.
[0012] Preferably, a support plate is slidably connected to the bottom of the support column, and a connecting spring is fixedly installed inside the support plate. The connecting spring is fixedly installed at the bottom of the support column.
[0013] Preferably, the moving component includes: a movable spring, which is fixedly installed inside the connecting column; a push rod is fixedly installed on the outer side of the slip ring; a push block is hinged to the surface of the push rod; and the push block is slidably connected inside the connecting column.
[0014] Preferably, the moving components are provided in four groups, and the four groups of moving components are arranged in a circular array with the center point of the fixed ring as the center.
[0015] Preferably, the surface of the connecting column is provided with a groove.
[0016] Preferably, the surface of the fixing block has a groove.
[0017] By employing the above technical solution, this utility model provides a pile driver with a buffer device. It possesses at least the following beneficial effects:
[0018] (1) By setting up a buffer component, when the slip ring slides upward, it will push the contact block to slide inside the air pressure block through the movable rod two. Therefore, when the contact block slides, it will be restricted by compressed air. When the slip ring slides downward, it will contact the support column inside the support column downward and the support plate supported on the ground. The buffer spring will push the downward sliding pile column in the opposite direction to contact it, thereby achieving a downward buffering effect. This will prevent the pile column from being damaged or the equipment from vibrating excessively due to excessive impact force when it is driving the pile downward or resetting upward. This will protect the pile driving equipment itself, reduce the probability of damage or deformation of various parts of the equipment due to frequent exposure to large impact forces, and extend the service life of the equipment.
[0019] (2) By setting up the moving component, the sliding ring that slides upward during use will also drive the push rod and the push block to slide upward inside the connecting column. When the connecting column slides upward, it will be resisted by the movable spring fixed inside the connecting column. The resistance of the movable spring can make the sliding of the push block more stable and smooth, so that the entire upward buffering process is gradual, and the buffering effect when the piling column slides upward can be realized more stably, ensuring the stability of the buffering action. Attached Figure Description
[0020] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a front view schematic diagram of the buffer component in this utility model;
[0023] Figure 3 This is a front view structural diagram of the mobile component in this utility model;
[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the air pressure block in this utility model;
[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the support plate in this utility model.
[0026] In the diagram: 1. Main body; 2. Support frame; 3. Telescopic cylinder; 4. Piling column; 5. Buffer assembly; 51. Fixing ring; 52. Fixing block; 53. Air pressure block; 54. Contact block; 55. Movable rod one; 56. Movable rod two; 57. Slip ring; 58. Connecting column; 59. Connecting ring; 510. Support column; 511. Slide rod; 512. Support plate; 513. Connecting spring; 514. Buffer spring; 6. Moving assembly; 61. Movable spring; 62. Push rod; 63. Push block; 580. Slide groove; 520. Groove. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Example 1
[0029] A pile driver with a buffer device, such as Figures 1-5 As shown, it includes a main body 1, a support frame 2 fixedly installed on the outside of the main body 1, a telescopic cylinder 3 fixedly installed on the top of the main body 1, and a piling column 4 fixedly installed at the bottom of the telescopic cylinder 3. The piling column 4 is slidably connected to the bottom of the main body 1.
[0030] It also includes a buffer component 5, which is used to buffer the main body 1 when it is used;
[0031] Move component 6 to improve the buffering effect of main body 1;
[0032] First, the buffer assembly 5 includes: a fixed ring 51, which is fixedly installed on the surface of the main body 1; a fixed block 52 is fixedly installed on the outside of the main body 1; a pneumatic block 53 is fixedly installed inside the fixed block 52; an abutment block 54 is slidably connected inside the pneumatic block 53; one end of a movable rod 55 is connected to the surface of the abutment block 54; the other end of the movable rod 55 is connected to the bottom of the fixed ring 51; a movable rod 56 is connected to the surface of the abutment block 54; and a sliding ring 57 is fixedly installed on the surface of the piling column 4. The pneumatic block 53 is filled with compressed air, so when the abutment block 54 slides, it is restricted by the compressed air, thereby achieving a buffering effect when the piling column 4 slides upward.
[0033] Secondly, a connecting column 58 is fixedly installed on the outer side of the main body 1, and a connecting ring 59 is fixedly installed on the inner side of the connecting column 58. A support column 510 is slidably connected inside the connecting ring 59, and a sliding rod 511 is slidably connected inside the support column 510. The sliding rod 511 is fixedly installed at the bottom of the sliding ring 57, and a buffer spring 514 is fixedly installed on the surface of the sliding rod 511. The buffer spring 514 is fixedly installed at the bottom of the sliding ring 57. When the pile is driven downward by the pile driving column 4, the sliding ring 57 is driven to slide downward, which also drives the sliding rod 511 to slide downward. When the sliding rod 511 slides downward, it abuts against the support column 510 and slides downward, and is supported on the ground.
[0034] Furthermore, a support plate 512 is slidably connected to the bottom of the support column 510, and a connecting spring 513 is fixedly installed inside the support plate 512. The connecting spring 513 is fixedly installed at the bottom of the support column 510, and the buffer spring 514 pushes the downward sliding pile column 4 to resist it, thereby achieving a downward buffering effect.
[0035] In this embodiment, by setting the buffer component 5, when the slip ring 57 slides upward, it will push the abutment block 54 to slide inside the air pressure block 53 through the movable rod 56. Since the air pressure block 53 is filled with compressed air, the abutment block 54 will be restricted by the compressed air when it slides. When the slip ring 57 slides downward, it will abut the support column 510 inside the support column 510 downward and the support plate 512 supported on the ground. The buffer spring 514 will push the downward sliding pile column 4 to abut in the opposite direction, thereby achieving a downward buffering effect. This prevents the pile column 4 from being damaged or the equipment from vibrating excessively due to excessive impact force when it is driven downward or reset upward. This protects the pile driving equipment itself, reduces the probability of damage or deformation of various parts of the equipment due to frequent exposure to large impact forces, and extends the service life of the equipment.
[0036] Example 2
[0037] like Figures 1-3As shown, the moving component 6 includes: a movable spring 61, which is fixedly installed inside the connecting post 58; a push rod 62 is fixedly installed on the outside of the slip ring 57; a push block 63 is hinged to the surface of the push rod 62; and the push block 63 is slidably connected inside the connecting post 58. The sliding of the push block 63 is made smoother and more stable by the resistance of the movable spring 61.
[0038] Furthermore, the moving component 6 is provided in four groups, and all four groups of moving components 6 are arranged in a circular array with the center point of the fixed ring 51 as the center.
[0039] Finally, a groove 580 is provided on the surface of the connecting post 58, which allows the push block 63 to slide inside the connecting post 58. A groove 520 is provided on the surface of the fixing block 52, which allows the abutment block 54 to slide inside the fixing block 52.
[0040] In this embodiment, by setting the moving component 6, the sliding ring 57 that slides upward during use will also drive the push rod 62 and the push block 63 to slide upward inside the connecting column 58. When the connecting column 58 slides upward, it will be resisted by the movable spring 61 fixed inside the connecting column 58. The resistance of the movable spring 61 can make the sliding of the push block 63 more stable and smooth, so that the entire upward buffering process is gradual, and the buffering effect when the piling column 4 slides upward can be achieved more stably, ensuring the stability of the buffering action.
[0041] This utility model discloses a pile driver with a buffer device. In use, the piling column 4 slides inside the body 1 via the activation of the telescopic cylinder 3, thus achieving the piling effect. When the piling column 4 slides upward, it causes the slip ring 57 to slide upward. When the slip ring 57 slides upward, it pushes the abutment block 54 inside the pneumatic block 53 via the movable rod 56. Since the pneumatic block 53 is filled with compressed air, the sliding of the abutment block 54 is restricted by the compressed air, thus achieving a buffering effect when the piling column 4 slides upward. When the piling column 4 drives the pile downward, it causes the slip ring 57 to slide downward. When the slip ring 57 slides downward, it causes the sliding rod 511 to slide downward. When rod 511 slides downward, it will be inside the support column 510 and will slide downward against the support column 510. When the support column 510 slides downward, it will drive the support plate 512 to support the ground, and the buffer spring 514 will push the downward sliding pile column 4 to resist it, thereby achieving a downward buffering effect. This prevents the pile column 4 from being damaged or the equipment from vibrating excessively due to excessive impact force when it is driven downward or reset upward. The buffer component 5 can effectively buffer the downward impact force of the pile column 4, protect the pile driving equipment itself, reduce the probability of damage or deformation of various parts of the equipment due to frequent exposure to large impact forces, and extend the service life of the equipment.
[0042] When the slip ring 57 slides upward under the action of the piling column 4, it will also drive the push rod 62 to slide upward. When the push rod 62 slides upward, it will drive the push block 63 to slide upward inside the connecting column 58. When the connecting column 58 slides upward, it will be resisted by the movable spring 61 fixed inside the connecting column 58. The resistance of the movable spring 61 can make the sliding of the push block 63 more stable and smooth, so that the entire upward buffering process is gradual, and the buffering effect when the piling column 4 slides upward can be achieved more stably, avoiding unstable situations such as sudden changes in buffering force, and ensuring the stability of the buffering action.
[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0044] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pile driver with a damping device, comprising a body (1), characterized in that: The body (1) is fixedly installed outside the support frame (2), the body (1) is fixedly installed at the top of the telescopic cylinder (3), the telescopic cylinder (3) is fixedly installed at the bottom of the pile (4), and the pile (4) is slidably connected to the bottom of the body (1); It also includes a buffer assembly (5) for buffering the body (1) during use; The moving assembly (6) is used to improve the buffering effect of the body (1); The buffer assembly (5) comprises: a fixed ring (51) fixedly installed on the surface of the body (1), a fixed block (52) fixedly installed on the outside of the body (1), a gas pressure block (53) fixedly installed inside the fixed block (52), a contact block (54) slidably connected inside the gas pressure block (53), one end of an active rod one (55) connected to the surface of the contact block (54), the other end of the active rod one (55) connected to the bottom of the fixed ring (51), an active rod two (56) connected to the surface of the contact block (54), and the other end of the active rod two (56) connected to a sliding ring (57) fixedly installed on the surface of the pile (4).
2. A pile driver with a buffer device according to claim 1, characterized in that: The body (1) is fixedly installed outside the connecting column (58), the connecting column (58) is fixedly installed inside the connecting ring (59), the supporting column (510) is slidably connected inside the connecting ring (59), the sliding rod (511) is fixedly installed at the bottom of the sliding ring (57), the buffer spring (514) is fixedly installed on the surface of the sliding rod (511), and the buffer spring (514) is fixedly installed at the bottom of the sliding ring (57).
3. A pile driver with a buffer device according to claim 2, characterized in that: The supporting column (510) is slidably connected to the supporting plate (512), the connecting spring (513) is fixedly installed inside the supporting plate (512), and the connecting spring (513) is fixedly installed at the bottom of the supporting column (510).
4. A pile driver with a buffer device according to claim 1, characterized in that: The moving assembly (6) comprises: an active spring (61) fixedly installed inside the connecting column (58), a push rod (62) fixedly installed outside the sliding ring (57), a push block (63) hinged to the surface of the push rod (62), and the push block (63) slidably connected inside the connecting column (58).
5. A pile driver with a buffer device according to claim 1, characterized in that: The moving assembly (6) is provided with four groups, and the four groups of moving assemblies (6) are arranged in a circular array with the center point of the fixed ring (51) as the center.
6. A pile driver with a buffer device according to claim 2, characterized in that: The connecting column (58) is provided with a sliding groove (580) on the surface.
7. A pile driver with a buffer device according to claim 1, characterized in that: The fixed block (52) is provided with a groove (520) on the surface.