Plain concrete pile head protection device for deep muddy soft soil layer

Abstract

The utility model discloses a plain concrete pile head protection device for a deep muddy soft soil layer, which belongs to the technical field of plain concrete pile construction and comprises a pile head main body, the top of the pile head main body is sleeved with a protection cover, and a plurality of insertion holes are formed in the side face of the pile head main body. According to the pile head, when the protective cover is placed at the top end of the pile head body, the side portions of the two first clamping blocks are attached to the pile head body through threaded fit between the first two-way lead screw and the two first clamping blocks; the side portions of the two second clamping blocks are attached to the pile head body through threaded fit between the second bidirectional lead screw and the two second clamping blocks, it is guaranteed that the pile head body and the protective cover are concentrically arranged, and bolts on the first clamping blocks and bolts on the second clamping blocks are inserted into insertion holes in the side portions of the pile head body to fix the pile head body and the protective cover.

Description

Technical Field

[0001] The utility model relates to the technical field of plain concrete pile construction, and more specifically to a plain concrete pile head protection device for deep muddy soft soil layers. Background Art

[0002] In areas with soft, silty soil, piling is a common foundation treatment method. This method is suitable for situations where the silt layer is thick and large-scale deep treatment is difficult. Piling can be used to reinforce the foundation. In the early days, cement-soil mixing piles, sand and gravel piles, and wooden piles were commonly used. However, due to technical and equipment issues, these methods are now less used. In contrast, precast reinforced concrete piles have been widely used due to their strong bearing capacity, low investment, guaranteed quality, and fast construction speed. However, during the process of the pile driver hammering the precast concrete piles, the pile heads may be damaged.

[0003] After searching, the utility model patent with publication number CN216615844U discloses a concrete pile head protection device, including a concrete pile head main body and a protection mechanism, and the protection mechanism is arranged on the top of the concrete pile head main body; the protection mechanism includes a protection cover, and the protection cover is arranged on the top of the concrete pile head main body, and the four sides of the protection cover are threadedly connected with threaded rods, and the side of the threaded rod away from the concrete pile head main body is fixedly connected with an operating handle, and the end of the threaded rod away from the operating handle passes through the protection cover and extends to the interior thereof and is connected to a positioning plate through a bearing; this patent realizes a concrete pile head protection device through the mutual cooperation of the concrete pile head main body and the protection mechanism, which can protect the concrete pile head, so that the pile head will not be damaged when the pile driver is used to press the concrete pile, so that the concrete pile head protection device can be well applied to concrete piles of different sizes and has a wide range of uses.

[0004] However, the aforementioned patent has several drawbacks: The installation requires the individual rotation of multiple operating handles, and the four positioning plates clamped to the concrete pile head body make it difficult to ensure the concentric alignment of the concrete pile head and protective cover. Furthermore, the vibrations generated by the pile driver striking the concrete pile can easily loosen the positioning plates. Therefore, we have proposed a plain concrete pile head protection device for deep, silty soft soils. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a plain concrete pile head protection device for deep muddy soft soil layers.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] The top of the pile head of a plain concrete pile used in a deep silt soft soil layer includes a pile head body, a protective cover is provided on the top of the pile head body, a plurality of insertion holes are provided on the side of the pile head body, a second slide groove is provided on the top surface of the inner cavity of the protective cover, the inner cavity of the second slide groove is rotatably connected to a second bidirectional screw rod, the outer sides of the two ends of the second bidirectional screw rod are respectively threadedly sleeved with second clamping blocks, the ends of the second bidirectional screw rod extend to the outside of the protective cover and are provided with a second fixing mechanism. The top surface of the inner cavity of the protective cover is provided with a first slide groove, the inner cavity of the first slide groove is rotatably connected to the first bidirectional screw rod, the outer sides of the two ends of the first bidirectional screw rod are respectively threadedly sleeved with first clamping blocks, the inner sides of the first clamping block and the second clamping block are both fitted with the side surfaces of the pile head body, the inner sides of the first clamping block and the second clamping block are fixedly connected with a pin, the end of the pin is movably sleeved into the inner cavity of the insertion hole, the end of the first bidirectional screw rod extends to the outside of the protective cover and is provided with a first fixing mechanism, the side of the protective cover is provided with a plurality of first screw holes, and the side of the protective cover is provided with a plurality of second screw holes.

[0008] As a preferred solution of the present invention, the first fixing mechanism includes a first turntable fixedly connected to the end of the first bidirectional screw, the end face of the first turntable is fixedly connected to the first block, the first turntable is sleeved with a first butterfly screw, and the end of the first butterfly screw is threadedly installed in the inner cavity of a first screw hole.

[0009] As a preferred solution of the present invention, the second fixing mechanism includes a second turntable fixedly connected to the end of the second bidirectional screw, the end face of the second turntable is fixedly connected to the second block, the second turntable is sleeved with a second butterfly screw, and the end of the second butterfly screw is threadedly installed in the inner cavity of a second screw hole.

[0010] As a preferred solution of the present invention, protective rings are fixedly connected to the side surfaces of the protective cover and are respectively located on the outer sides of the first turntable and the second turntable.

[0011] As a preferred solution of the present invention, the top surface of the protective cover is fixedly connected to a rubber pad, the top surface of the rubber pad is provided with a thickened pad, the top surface of the thickened pad is provided with positioning dots, and the positioning dots are respectively arranged concentrically with the protective cover and the pile head body.

[0012] As a preferred solution of the present invention, the side surface of the second clamping block is in contact with the inner wall of the second chute, and the side surface of the first clamping block is in contact with the inner wall of the first chute.

[0013] As a preferred solution of the present invention, the outer diameter of the pin is equal to the inner diameter of the socket.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) In the present invention, when the protective cover is placed on the top of the pile head body, the side portions of the two first clamping blocks are fitted with the pile head body by the threaded cooperation between the first bidirectional screw and the two first clamping blocks, and the side portions of the two second clamping blocks are fitted with the pile head body by the threaded cooperation between the second bidirectional screw and the two second clamping blocks, thereby ensuring that the pile head body and the protective cover are concentrically arranged, and the pins on the first clamping block and the second clamping block are inserted into the sockets on the side portions of the pile head body to fix the pile head body and the protective cover.

[0016] (2) In the present invention, the first butterfly screw on the first turntable is rotated so that its end is threadedly installed in a first screw hole, thereby fixing the first turntable and the first bidirectional screw rod, and then fixing the first clamping block. In addition, the second butterfly screw on the second turntable is rotated so that its end is threadedly installed in a second screw hole, thereby fixing the second turntable and the second bidirectional screw rod, and then fixing the second clamping block, effectively preventing the first clamping block and the second clamping block from loosening, and ensuring the stability of the connection and installation of the pile head body and the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is an exploded view of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the protective cover of the utility model;

[0020] Figure 4 This is a schematic structural diagram of the second clamping block of the present invention;

[0021] Figure 5 This is a schematic structural diagram of the first fixing mechanism of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the second fixing mechanism of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Pile head body; 2. Protective cover; 3. Socket; 4. Second slide groove; 5. Second bidirectional screw rod; 6. Second clamping block; 7. First slide groove; 8. First bidirectional screw rod; 9. First clamping block; 10. Pin; 11. First fixing mechanism; 12. Second fixing mechanism; 13. First screw hole; 14. Second screw hole; 15. First turntable; 16. First butterfly screw; 17. First lever; 18. Second turntable; 19. Second lever; 20. Second butterfly screw; 21. Rubber pad; 22. Thickened pad; 23. Positioning dot; 24. Protective ring. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," 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.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" 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. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0028] Example:

[0029] See also Figure 1-6, a plain concrete pile head protection device for deep silt soft soil layer, including a pile head body 1, a protective cover 2 is provided on the top of the pile head body 1, a plurality of sockets 3 are provided on the side of the pile head body 1, a second slide groove 4 is provided on the top surface of the inner cavity of the protective cover 2, a second bidirectional screw rod 5 is rotatably connected to the inner cavity of the second slide groove 4, and the outer sides of the two ends of the second bidirectional screw rod 5 are respectively threaded with second clamping blocks 6, the end of the second bidirectional screw rod 5 extends to the outside of the protective cover 2 and is provided with a second fixing mechanism 12, the top surface of the inner cavity of the protective cover 2 is provided with a first slide groove 7, the first slide groove 7 The inner cavity is rotatably connected to the first bidirectional screw rod 8, and the outer sides of the two ends of the first bidirectional screw rod 8 are respectively threadedly sleeved with first clamping blocks 9. The inner sides of the first clamping block 9 and the second clamping block 6 are both fitted with the side surfaces of the pile head body 1. The inner sides of the first clamping block 9 and the second clamping block 6 are fixedly connected to the pin 10, and the end of the pin 10 is movably sleeved into the inner cavity of the socket 3. The end of the first bidirectional screw rod 8 extends to the outside of the protective cover 2 and is provided with a first fixing mechanism 11. A plurality of first screw holes 13 are opened on the side of the protective cover 2, and a plurality of second screw holes 14 are opened on the side of the protective cover 2.

[0030] In this embodiment, the protective cover 2 can be made of metal.

[0031] For details, please refer to Figures 1 to 5 The first fixing mechanism 11 includes a first turntable 15 fixedly connected to the end of the first bidirectional screw 8, the end face of the first turntable 15 is fixedly connected to the first block 17, the first turntable 15 is sleeved with a first butterfly screw 16, and the end of the first butterfly screw 16 is threadedly installed in the inner cavity of a first screw hole 13.

[0032] In this embodiment, the plurality of first screw holes 13 are evenly arranged in a circle with the axis of the first bidirectional screw rod 8 as the center, ensuring that the first butterfly screw 16 can be threadedly installed in each first screw hole 13 .

[0033] For details, please refer to Figures 1 to 6 The second fixing mechanism 12 includes a second turntable 18 fixedly connected to the end of the second bidirectional screw 5, and the end face of the second turntable 18 is fixedly connected to the second block 19. The second turntable 18 is sleeved with a second butterfly screw 20, and the end of the second butterfly screw 20 is threadedly installed in the inner cavity of a second screw hole 14.

[0034] In this embodiment, the plurality of second screw holes 14 are evenly arranged in a circle with the axis of the second bidirectional screw rod 5 as the center, ensuring that the second butterfly screw 20 can be threadedly installed in each second screw hole 14 .

[0035] For details, please refer to Figure 2 A protective ring 24 is fixedly connected to the side of the protective cover 2 and is located on the outside of the first turntable 15 and the second turntable 18 respectively.

[0036] In this embodiment, the protective ring 24 is used to protect the first rotary disk 15 and the second rotary disk 18 to prevent the pile driver from accidentally hitting the first rotary disk 15 and the second rotary disk 18 and causing damage.

[0037] For details, please refer to Figure 1 and Figure 2 The top surface of the protective cover 2 is fixedly connected with a rubber pad 21, the top surface of the rubber pad 21 is provided with a thickened pad 22, and the top surface of the thickened pad 22 is provided with a positioning dot 23, which is concentrically arranged with the protective cover 2 and the pile head body 1 respectively.

[0038] In this embodiment, the location where the pile driver is to hit is located by the positioning dot 23 .

[0039] For details, please refer to Figure 4 The side surface of the second clamping block 6 is in contact with the inner wall of the second chute 4 , and the side surface of the first clamping block 9 is in contact with the inner wall of the first chute 7 .

[0040] In this embodiment, the inner wall of the second slide groove 4 is used to limit the second clamping block 6, so that the second clamping block 6 can only move along the axial direction of the second bidirectional screw rod 5. In addition, the inner wall of the first slide groove 7 is used to limit the first clamping block 9, so that the first clamping block 9 can only move along the axial direction of the first bidirectional screw rod 8.

[0041] For details, please refer to Figure 2 and Figure 4 , the outer diameter of the pin 10 is equal to the inner diameter of the socket 3.

[0042] In this embodiment, the stability of the insertion of the plug 10 into the insertion hole 3 is ensured, thereby ensuring the stability of the protective cover 2 installed on the top of the pile head body 1.

[0043] Working principle: When in use, first put the protective cover 2 on the top of the pile head body 1, and rotate the first turntable 15 and the second turntable 18 at the same time. The first turntable 15 is used to drive the first bidirectional screw rod 8 to rotate, and the two first clamping blocks 9 are driven to approach each other through the threaded cooperation between the first bidirectional screw rod 8 and the two first clamping blocks 9, so that the inner side surface of the first clamping block 9 and the outer side surface of the pile head body 1 fit together. At this time, the pin 10 on the first clamping block 9 is inserted into the socket 3 on the side of the pile head body 1, and the second turntable 18 is used to drive the second bidirectional screw rod 5 to rotate, and the two second clamping blocks 6 are driven to approach each other through the threaded cooperation between the second bidirectional screw rod 5 and the two second clamping blocks 6, so that the inner side surface of the second clamping block 6 and the outer side surface of the pile head body 1 fit together. At this time, the pin 10 on the second clamping block 6 Insert it into the remaining jackspots 3 on the side of the pile head body 1, so that the protective cover 2 is fixed on the top of the pile head body 1, and then rotate the first butterfly screw 16 on the first turntable 15 so that its end is threadedly installed in a first screw hole 13, thereby fixing the first turntable 15 and the first bidirectional screw rod 8, and then fixing the first clamping block 9, and then rotate the second butterfly screw 20 on the second turntable 18 so that its end is threadedly installed in a second screw hole 14, thereby fixing the second turntable 18 and the second bidirectional screw rod 5, and then fixing the second clamping block 6, and finally place the pile head body 1 and the protective cover 2 vertically at the piling place, use the positioning point 23 to position the knocking place, and use the rubber pad 21 and the thickening pad 22 to prevent the protective cover 2 from being damaged.

[0044] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plain concrete pile head protection device for deep muddy soft soil layers, comprising a pile head body (1), characterized in that: The top of the pile head body (1) is provided with a protective cover (2), and the side of the pile head body (1) is provided with a plurality of jacks (3). The top surface of the inner cavity of the protective cover (2) is provided with a second slide groove (4), and the inner cavity of the second slide groove (4) is rotatably connected to a second bidirectional screw rod (5). The outer sides of both ends of the second bidirectional screw rod (5) are respectively threadedly sleeved with second clamping blocks (6). The end of the second bidirectional screw rod (5) extends to the outside of the protective cover (2) and is provided with a second fixing mechanism (12). The top surface of the inner cavity of the protective cover (2) is provided with a first slide groove (7), and the inner cavity of the first slide groove (7) is rotatably connected to a first bidirectional screw rod (8). The outer sides of both ends of the first bidirectional screw rod (8) are respectively threadedly sleeved with first clamping blocks (9), the inner sides of the first clamping block (9) and the second clamping block (6) are both fitted with the side surfaces of the pile head body (1), the inner sides of the first clamping block (9) and the second clamping block (6) are both fixedly connected with a plug (10), the end of the plug (10) is movably sleeved into the inner cavity of the socket (3), the end of the first bidirectional screw rod (8) extends to the outside of the protective cover (2) and is provided with a first fixing mechanism (11), a plurality of first screw holes (13) are opened on the side of the protective cover (2), and a plurality of second screw holes (14) are opened on the side of the protective cover (2).

2. The plain concrete pile head protection device for deep muddy soft soil layer according to claim 1 is characterized by: The first fixing mechanism (11) includes a first turntable (15) fixedly connected to the end of a first bidirectional screw rod (8), the end face of the first turntable (15) is fixedly connected to a first block (17), a first butterfly screw (16) is sleeved on the first turntable (15), and the end of the first butterfly screw (16) is threadedly installed in the inner cavity of a first screw hole (13).

3. The plain concrete pile head protection device for deep muddy soft soil layer according to claim 2 is characterized in that: The second fixing mechanism (12) includes a second turntable (18) fixedly connected to the end of the second bidirectional screw rod (5), the end face of the second turntable (18) is fixedly connected to the second block (19), the second turntable (18) is sleeved with a second butterfly screw (20), and the end of the second butterfly screw (20) is threadedly installed in the inner cavity of a second screw hole (14).

4. The plain concrete pile head protection device for deep muddy soft soil layer according to claim 3 is characterized by: A protective ring (24) is fixedly connected to the side of the protective cover (2) and is located on the outside of the first rotating disk (15) and the second rotating disk (18).

5. The plain concrete pile head protection device for deep muddy soft soil layer according to claim 1 is characterized in that: The top surface of the protective cover (2) is fixedly connected to a rubber pad (21), the top surface of the rubber pad (21) is provided with a thickening pad (22), the top surface of the thickening pad (22) is provided with a positioning dot (23), and the positioning dot (23) is respectively arranged concentrically with the protective cover (2) and the pile head body (1).

6. The plain concrete pile head protection device for deep muddy soft soil layer according to claim 1 is characterized in that: The side surface of the second clamping block (6) is in contact with the inner wall of the second chute (4), and the side surface of the first clamping block (9) is in contact with the inner wall of the first chute (7).

7. The plain concrete pile head protection device for deep muddy soft soil layer according to claim 1 is characterized by: The outer diameter of the latch (10) is equal to the inner diameter of the insertion hole (3).

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