Pile cap for pile hammer

Abstract

The utility model relates to the technical field of pile caps, and discloses a pile cap for a pile hammer, which comprises a pile cap plate, an upper cylinder is fixedly mounted at the top of the pile cap plate, a lower cylinder is fixedly mounted at the bottom of the pile cap plate, a pile hammer is arranged at the top of the upper cylinder, and the pile hammer can be clamped into the upper cylinder. The adjusting ring is rotated, the adjusting ring drives the threaded rod to rotate, the threaded rod can control the clamping plates on the two sides in the lower cylinder to move towards the middle, the two sides of a pile are clamped, and therefore the effects that the device can be fixed to piles with different diameters, and cost is saved are achieved; when the pile hammer falls to the bottom of the upper cylinder, the spring pushes out the clamping block again, the clamping block is clamped on the back of the pile hammer, and when the hydraulic machine drives the pile hammer to move upwards, the pile cap can be separated from the pile and moved to the next pile. And therefore, the effect of conveniently disassembling, assembling and moving the pile cap is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pile caps, in particular to a pile cap for a pile hammer. Background Art

[0002] Pile hammers have been rapidly applied in high-speed railways, soft foundation treatment of highways, land reclamation and bridge and wharf projects, deep foundation pit support, and foundation treatment of ordinary buildings. They use excavators as power sources and generate high-frequency vibrations through vibration boxes, allowing piles to be easily driven into the soil.

[0003] An existing pile cap for a pile driver (Announcement No.: CN216428247U) has at least the following disadvantages: the pile cap needs to be put on the pile to protect the pile head before piling. However, piles have different diameters. In order to ensure that the pile cap can be stably fixed on the pile to protect the pile head, pile caps of various sizes need to be customized, which greatly increases the cost. In addition, the pile cap is heavy. After piling, workers need to manually remove the pile cap and carry it to the next pile, which is very troublesome. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a pile cap for a pile hammer.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A pile cap for a pile driving hammer comprises a pile cap plate, an upper cylinder is fixedly mounted on the top of the pile cap plate, a lower cylinder is fixedly mounted on the bottom of the pile cap plate, a pile hammer is provided on the top of the upper cylinder, and the pile hammer can be clamped into the upper cylinder, a connecting cover is fixedly mounted on the outer side of the upper cylinder, a movable groove is provided on the inner wall of the upper cylinder at a position corresponding to the connecting cover, a clamping block is provided in the connecting cover, the top of the clamping block is a downwardly inclined inclined surface, the clamping block can pass through the movable groove, and a pair of clamping plates are provided in the lower cylinder.

[0007] As a further solution of the present invention, a fixing groove is provided in the connecting cover, and the blocking block is movably installed in the fixing groove. A spring is provided between the tail of the blocking block and the fixing groove, and both ends of the spring are fixedly connected to the blocking block and the fixing groove. A connecting groove is provided on the left side of the fixing groove, and a limit block is movably installed in the connecting groove. A threaded groove is provided on the side wall of the connecting cover at a position corresponding to the connecting groove, and a threaded handle is provided in the threaded groove. The threaded handle is threadedly connected to the threaded groove, and the top of the threaded handle is movably connected to the back of the limit block.

[0008] As a further solution of the present invention, a slide groove is provided in the lower tube, a threaded rod is movably installed in the slide groove, the two ends of the threaded rod are opposite threads, an adjustment ring is provided on the outside of the lower tube corresponding to the position of the threaded rod, and one side of the threaded rod penetrates the lower tube and is fixedly connected to the adjustment ring.

[0009] As a further solution of the present invention, a slider is fixedly installed on the clamping plate, and the slider can be movably engaged in the sliding groove. The slider is provided with a groove and is threadedly connected to the threaded rod, and the two clamping plates are located at both ends of the threaded rod.

[0010] As a further solution of the present invention, a limiting groove is provided on the side of the clamping block at a position corresponding to the connecting groove, and the limiting block can be movably engaged in the limiting groove.

[0011] As a further solution of the present invention, a circle of exhaust grooves is provided at the bottom of the side wall of the upper cylinder.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In the utility model, by putting the lower tube on the pile and then rotating the adjusting ring, the adjusting ring drives the threaded rod to rotate, and the threaded rod controls the clamping plates on both sides of the lower tube to move toward the middle. At this time, the clamping plates will clamp the two sides of the pile, thereby achieving the effect of fixing piles of different diameters and saving costs.

[0014] 2. In the utility model, the limit block is moved out of the limit groove by controlling the thread. At this time, the spring will push the block to move into the upper cylinder, and the top of the block will pass through the movable groove and extend into the upper cylinder. Since the top of the block is an inclined surface, when the pile hammer falls, the block will be pushed back into the fixed groove. When the pile hammer falls to the bottom of the upper cylinder, the spring will push the block out again, and the block will be stuck on the back of the pile hammer. When the hydraulic press drives the pile hammer to move upward, the pile cap can be separated from the pile and moved to the next pile, thereby achieving the effect of facilitating the disassembly and assembly of the pile cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a pile cap for a pile hammer proposed in the present invention;

[0016] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a partial structural diagram of a pile cap for a pile hammer proposed in the present invention;

[0018] Figure 4 The present invention provides a schematic diagram of the structure of the components of a pile cap for a pile hammer.

[0019] In the figure: 1. Pile cap plate; 2. Upper cylinder; 3. Lower cylinder; 4. Pile hammer; 5. Connecting cover; 6. Movable groove; 7. Block; 8. Exhaust groove; 9. Adjusting ring; 10. Threaded handle; 11. Fixing groove; 12. Spring; 13. Limiting groove; 14. Connecting groove; 15. Threaded groove; 16. Limiting block; 17. Slide groove; 18. Threaded rod; 19. Clamp; 20. Slider. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean 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 an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] Reference Figure 1 - Figure 4 A pile cap for a pile hammer comprises a pile cap plate 1, an upper cylinder 2 is fixedly mounted on the top of the pile cap plate 1, a lower cylinder 3 is fixedly mounted on the bottom of the pile cap plate 1, a pile hammer 4 is provided on the top of the upper cylinder 2, the pile hammer 4 can be inserted into the upper cylinder 2, a connecting cover 5 is fixedly mounted on the outer side of the upper cylinder 2, a movable groove 6 is provided on the inner wall of the upper cylinder 2 at a position corresponding to the connecting cover 5, a clamping block 7 is provided in the connecting cover 5, the top of the clamping block 7 is a downwardly inclined slope, the clamping block 7 can pass through the movable groove 6, and a pair of clamping plates 19 are provided in the lower cylinder 3.

[0024] The locking block 7 is movably mounted in the fixing groove 11 , and a spring 12 is provided between the tail of the locking block 7 and the fixing groove 11 . Both ends of the spring 12 are fixedly connected to the locking block 7 and the fixing groove 11 . A connecting groove 14 is provided on the left side of the fixing groove 11 , and a limit block 16 is movably installed in the connecting groove 14 . A threaded groove 15 is provided on the side wall of the connecting cover 5 at a position corresponding to the connecting groove 14 . A threaded handle 10 is provided in the threaded groove 15 , and the threaded handle 10 is threadedly connected to the threaded groove 15 . The top of the threaded handle 10 is movably connected to the back of the limit block 16 , and the threaded handle 10 is controlled to rotate in the threaded groove 15 so that the threaded handle 10 drives the limit block 16 to move toward the connecting groove 14 . At this time, the limit block 16 will move out of the limit groove 13 , and the spring 12 will push the locking block 7 to move into the upper cylinder 2 , and the top of the locking block 7 will pass through the movable groove 6 and extend into the upper cylinder 2 .

[0025] In this embodiment, a slide groove 17 is provided in the lower tube 3, and a threaded rod 18 is movably installed in the slide groove 17. The two ends of the threaded rod 18 are opposite threads. An adjusting ring 9 is provided on the outer side of the lower tube 3 at the position corresponding to the threaded rod 18. One side of the threaded rod 18 penetrates the lower tube 3 and is fixedly connected to the adjusting ring 9. A slider 20 is fixedly installed on the splint 19. The slider 20 can be movably engaged in the slide groove 17. The slider 20 has a groove and is threadedly connected to the threaded rod 18. The two splints 19 are at both ends of the threaded rod 18. The threaded rod 18 is driven to rotate by the adjusting ring 9. The threaded rod 18 will control the splints 19 on both sides of the lower tube 3 to move toward the middle. At this time, the splints 19 will clamp the two sides of the pile.

[0026] In this embodiment, a limiting groove 13 is provided on the side of the block 7 at a position corresponding to the connecting groove 14, and the limiting block 16 can be movably engaged in the limiting groove 13. When the limiting block 16 is fully engaged in the limiting groove 13, the top of the block 7 will be retracted into the connecting cover 5.

[0027] In this embodiment, a circle of exhaust grooves 8 is provided at the bottom of the side wall of the upper tube 2 , and the compressed gas in the upper tube 2 is discharged through the exhaust grooves 8 .

[0028] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: when using, the pile cap plate 1 is moved to the top of the pile, the lower cylinder 3 is sleeved on the pile, then the adjusting ring 9 is rotated, the threaded rod 18 is driven to rotate through the adjusting ring 9, the threaded rod 18 will control the clamping plate 19 on both sides in the lower cylinder 3 to move to the middle, at this time the clamping plate 19 will clamp the both sides of the pile, thereby the effect of being able to be fixed on the pile of different diameters and saving cost is achieved, then the hydraulic machine is started to control the pile hammer 4 to continuously impact the upper cylinder 2 to drive the pile into the ground, when the pile driving is completed, the threaded rod 10 is rotated in the threaded groove 15, the limiting block 16 is driven to move in the connecting groove 14, at this time the limiting block 16 will move out of the limiting groove 13, the spring 12 will push the clamping block 7 to move into the upper cylinder 2, the top of the clamping block 7 will extend into the upper cylinder 2 through the movable groove 6, since the top of the clamping block 7 is inclined, when the pile hammer 4 falls, the clamping block 7 will be pushed back into the fixed groove 11, when the pile hammer 4 falls to the bottom of the upper cylinder 2, the pile hammer 4 and the top of the clamping block 7 will be staggered, at this time the spring 12 will push the clamping block 7 out again, the clamping block 7 will be clamped on the back of the pile hammer 4, when the hydraulic machine drives the pile hammer 4 to move up, the pile cap can be separated from the pile, thereby the effect of conveniently moving the pile cap is achieved, then the pile hammer 4 is moved above the new pile, the pile hammer 4 is controlled to move down, the lower cylinder 3 is sleeved on the pile and fixed, then the threaded rod 10 is rotated, the limiting block 16 is pushed to the fixed groove 11 through the threaded rod 10, the top of the limiting block 16 will be clamped into the limiting groove 13, when the limiting block 16 is completely clamped into the limiting groove 13, the top of the clamping block 7 will be retracted into the connecting cover 5, at this time the pile hammer 4 can be separated from the pile cap.

[0029] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification only illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A pile cap for a pile hammer, comprising a pile cap plate (1), characterized in that: The top of the pile cap plate (1) is fixedly mounted on an upper cylinder (2), and the bottom of the pile cap plate (1) is fixedly mounted on a lower cylinder (3). A pile hammer (4) is provided on the top of the upper cylinder (2), and the pile hammer (4) can be clamped into the upper cylinder (2). A connecting cover (5) is fixedly mounted on the outer side of the upper cylinder (2). A movable groove (6) is provided on the inner wall of the upper cylinder (2) at a position corresponding to the connecting cover (5). A clamping block (7) is provided in the connecting cover (5). The top of the clamping block (7) is a downwardly inclined inclined surface, and the clamping block (7) can pass through the movable groove (6). A pair of clamping plates (19) are provided in the lower cylinder (3).

2. A pile cap for a pile hammer according to claim 1, characterized in that: A fixing groove (11) is provided in the connecting cover (5), and the clamping block (7) is movably installed in the fixing groove (11). A spring (12) is provided between the tail of the clamping block (7) and the fixing groove (11), and both ends of the spring (12) are fixedly connected to the clamping block (7) and the fixing groove (11). A connecting groove (14) is provided on the left side of the fixing groove (11), and a limit block (16) is movably installed in the connecting groove (14). A threaded groove (15) is provided on the side wall of the connecting cover (5) at a position corresponding to the connecting groove (14), and a threaded handle (10) is provided in the threaded groove (15), and the threaded handle (10) is threadedly connected to the threaded groove (15). The top of the threaded handle (10) is movably connected to the back of the limit block (16).

3. A pile cap for a pile hammer according to claim 2, characterized in that: A slide groove (17) is provided in the lower cylinder (3), and a threaded rod (18) is movably installed in the slide groove (17). The two ends of the threaded rod (18) are oppositely threaded. An adjustment ring (9) is provided on the outer side of the lower cylinder (3) at a position corresponding to the threaded rod (18). One side of the threaded rod (18) penetrates the lower cylinder (3) and is fixedly connected to the adjustment ring (9).

4. The pile cap for a pile hammer according to claim 1, characterized in that: A slider (20) is fixedly mounted on the clamping plate (19), and the slider (20) can be movably engaged in the sliding groove (17). The slider (20) is provided with a groove and is threadedly connected to the threaded rod (18). The two clamping plates (19) are located at both ends of the threaded rod (18).

5. The pile cap for a pile hammer according to claim 2, characterized in that: A limiting groove (13) is provided on the side of the clamping block (7) at a position corresponding to the connecting groove (14), and the limiting block (16) can be movably engaged in the limiting groove (13).

6. The pile cap for a pile hammer according to claim 1, characterized in that: A circle of exhaust grooves (8) is provided at the bottom of the side wall of the upper cylinder (2).

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