Civil construction concrete pipe pile

Abstract

The utility model discloses a civil construction concrete pipe pile, which relates to the technical field of concrete pipe piles, and comprises a pipe pile assembly, the pipe pile assembly comprises a bottom pipe pile and a connecting pipe pile, the connecting pipe pile is located right above the bottom pipe pile, a vertical cylinder coaxial with the bottom pipe pile is arranged in the bottom pipe pile, and the connecting pipe pile is connected with the vertical cylinder. A plurality of sleeves are evenly installed between the outer circumferential face of the vertical cylinder and the inner wall of the bottom pipe pile, first pistons are slidably connected into the sleeves, inserting rods are installed on the outer end faces of the first pistons, the inner ends of the sleeves communicate with the interior of the vertical cylinder, and the outer ends of the sleeves are open and penetrate to the outer surface of the bottom pipe pile. The multiple sleeves are arranged between the vertical cylinder and the bottom pipe pile, the inserting rods are arranged in the sleeves, the first pistons sliding outwards can push the inserting rods out of the bottom pipe pile and insert the inserting rods into the soil layer, and therefore the inserting connection stability of the bottom pipe pile and the soil layer can be improved, and when the pipe pile is inserted into the soil layer, a reinforcing component of the pipe pile cannot affect sinking of the pipe pile.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete pipe piles, especially to civil engineering concrete pipe piles. Background Art

[0002] Concrete pipe piles are often used in the civil engineering industry. Concrete pipe piles are also called PHC pipe piles, namely prestressed high-strength concrete pipe piles. Concrete pipe piles are made by the process of pre-tensioned centrifugal forming, and through steam curing at about 10 atmospheric pressures (about 1.0 Mpa) and about 180 °C, to make a kind of hollow cylindrical concrete precast member.

[0003] The existing utility model patent with the publication number of CN214738217U in Chinese patents discloses a concrete pipe pile, which includes a column body, a bearing platform and a pile tip. The bottom of the bearing platform is fixedly connected with the pile tip through expansion bolts. The column body is installed on the upper surface of the bearing platform through a second base. A stiffening steel plate is installed on the column body through a first base, and the stiffening steel plate is fixedly connected with the first base through a metal support block. A tapered steel pile tip is installed at the bottom of the pile tip, steel spikes are installed around the pile tip, and a concrete cushion layer is installed inside the pile tip. A filling layer is installed inside the concrete cushion layer;

[0004] This patent can improve the installation stability of the pipe pile by setting a pile tip at the bottom of the pipe pile and steel spikes on the pile tip. However, when the pipe pile is inserted into the soil layer, the reinforcement components will generate a resistance, making it difficult for the pipe pile to sink. Therefore, the utility model provides a civil engineering concrete pipe pile to solve the above-mentioned technical problems. Content of the Utility Model

[0005] The utility model provides a civil engineering concrete pipe pile to solve the problem that when the pipe pile of the existing patent in the above-mentioned background art is inserted into the soil layer, the reinforcement components will generate a resistance, making it difficult for the pipe pile to sink.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The civil engineering concrete pipe pile includes a pipe pile assembly. The pipe pile assembly includes a bottom pipe pile and a connecting pipe pile. The connecting pipe pile is located directly above the bottom pipe pile. A vertical cylinder coaxial with the bottom pipe pile is arranged inside the bottom pipe pile. A plurality of sleeves are evenly installed between the outer circumferential surface of the vertical cylinder and the inner wall of the bottom pipe pile. A first piston is slidably connected inside the sleeve. A plug rod is installed on the outer end surface of the first piston.

[0008] Furthermore, the inner end of the sleeve is communicated with the inside of the vertical cylinder. The outer end of the sleeve is open and penetrates to the outer surface of the bottom pipe pile. A spring is sleeved outside the plug rod.

[0009] Further, the top of the vertical cylinder is connected with a screw rod through threads. The bottom of the screw rod penetrates into the vertical cylinder and is equipped with a second piston. The second piston is slidably connected to the vertical cylinder and is located above all the sleeves.

[0010] Further, a grouting pipe located below the second piston is inserted into the upper end of the vertical cylinder.

[0011] Further, at the lower end inside the connecting pipe pile, a connecting cylinder coaxial with it is provided, and the connecting cylinder is located directly above the screw rod.

[0012] Further, connecting rods are installed between the outer circumferential surface of the connecting cylinder and the inner wall of the connecting pipe pile.

[0013] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0014] By arranging a plurality of sleeves between the vertical cylinder and the bottom pipe pile, and inserting rods are arranged inside the sleeves. After the bottom pipe pile is inserted into the soil layer, the vertical cylinder can be filled with grouting material. Then, the screw rod is rotated to move downward. The downward-moved screw rod can use the second piston to extrude the grouting material. Then, the extruded grouting material can exert pressure on the first pistons in all the sleeves and push the first pistons to slide outward. Then, the outward-sliding first pistons can push the inserting rods out of the bottom pipe pile and insert them into the soil layer, thereby improving the stability of the connection between the bottom pipe pile and the soil layer. Thus, in this way, when the pipe pile is inserted into the soil layer, the reinforcement components of the pipe pile will not affect the sinking of the pipe pile.

[0015] By arranging the screw rod, after the bottom pipe pile is completely installed in the soil layer, the connecting cylinder inside the connecting pipe pile can be sleeved outside the screw rod and threadedly connected to the screw rod, thereby facilitating the splicing of the connecting pipe pile on the top of the bottom pipe pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the internal structure of the bottom pipe pile of the present utility model.

[0017] Figure 2 is the present utility model Figure 1 partial enlarged schematic view of part A.

[0018] Figure 3 is a schematic diagram of the internal structure of the connecting pipe pile of the present utility model.

[0019] Figure 4 is a state diagram when the bottom pipe pile and the connecting pipe pile of the present utility model are connected.

[0020] Figures 1-4 In the figure: 1-bottom pipe pile, 2-connecting pipe pile, 3-vertical cylinder, 4-sleeve, 5-first piston, 6-inserting rod, 7-spring, 8-screw rod, 9-second piston, 10-grouting pipe, 11-connecting cylinder, 12-connecting rod. Detailed implementation mode

[0021] Please refer to Figures 1 to 4 :

[0022] The utility model provides a civil engineering concrete pipe pile, which comprises a pipe pile assembly. The pipe pile assembly includes a bottom pipe pile 1 and a connecting pipe pile 2. The connecting pipe pile 2 is located directly above the bottom pipe pile 1. Inside the bottom pipe pile 1, a vertical cylinder 3 coaxial with the bottom pipe pile 1 is arranged. A plurality of sleeves 4 are evenly installed between the outer circumferential surface of the vertical cylinder 3 and the inner wall of the bottom pipe pile 1. A first piston 5 is slidably connected inside the sleeve 4, and a plug rod 6 is installed on the outer end face of the first piston 5;

[0023] The bottom pipe pile 1 can be inserted into the soil layer, and the connecting pipe pile 2 is located above the soil layer;

[0024] According to the above, the inner end of the sleeve 4 communicates with the inside of the vertical cylinder 3. The outer end of the sleeve 4 is open and penetrates to the outer surface of the bottom pipe pile 1. A spring 7 is sleeved outside the plug rod 6. The top of the vertical cylinder 3 is threadedly connected with a screw rod 8. The bottom of the screw rod 8 penetrates into the vertical cylinder 3 and a second piston 9 is installed. The second piston 9 is slidably connected with the vertical cylinder 3 and is located above all the sleeves 4. A grouting pipe 10 is inserted into the upper end of the vertical cylinder 3 and is located below the second piston 9;

[0025] By arranging the spring 7 outside the plug rod 6, when the bottom pipe pile 1 is inserted into the soil layer, the spring 7 can use its elastic force to keep the plug rod 6 on the same side always inside the sleeve 4 and not slide out, avoiding the plug rod 6 affecting the insertion of the bottom pipe pile 1 into the soil layer;

[0026] After the bottom pipe pile 1 is inserted into the soil layer, grouting material can be injected into the vertical cylinder 3 through the grouting pipe 10. When the vertical cylinder 3 is filled with grouting material, turn the screw rod 8 to move downward. The downward moving screw rod 8 can push the second piston 9 to slide downward. When the second piston 9 slides downward, the second piston 9 can extrude the grouting material below it. The extruded grouting material then transmits the pressure to the first pistons 5 in all the sleeves 4. Then the generated pressure overcomes the elastic force of the spring 7 and pushes the first pistons 5 to slide outward. The outward sliding first pistons 5 can push the plug rods 6 out of the bottom pipe pile 1 and insert them into the soil layer, so as to reinforce between the bottom pipe pile 1 and the soil layer and improve the stability of the insertion of the bottom pipe pile 1, as Figure 4 shown;

[0027] When the grouting material in the vertical cylinder 4 solidifies, the plug rod 6, the first piston 5 and the second piston 9 will be completely fixed in their current positions, so that the bottom pipe pile 1 can be completely fixed in the soil layer. And through the cooperation of the vertical cylinder 3, the sleeves 4 and the grouting material, the inner side of the bottom pipe pile 1 can be supported and reinforced, and the structural strength of the bottom pipe pile 1 can be improved.

[0028] As described above, a connecting cylinder 11 coaxial with the inside of the connecting pipe pile 2 is provided at the lower end of the connecting pipe pile 2. The connecting cylinder 11 is located directly above the screw rod 8, and a connecting rod 12 is installed between the outer circumferential surface of the connecting cylinder 11 and the inner wall of the connecting pipe pile 2;

[0029] Internal threads are provided on the inner wall of the connecting cylinder 11. After the bottom pipe pile 1 is completely fixed in the soil layer, the connecting cylinder 11 in the connecting pipe pile 2 is sleeved outside the screw rod 8, and then the connecting pipe pile 2 and the connecting cylinder 11 are rotated, so that the screw rod 8 can be inserted into the connecting cylinder 11, thereby enabling the connecting pipe pile 2 to be spliced above the bottom pipe pile 1, as Figure 4 shown.

[0030] To sum up:

[0031] By providing a plurality of sleeves 4 between the vertical cylinder 3 and the bottom pipe pile 1, and inserting rods 6 are provided inside the sleeves 4. After the bottom pipe pile 1 is inserted into the soil layer, the vertical cylinder 3 can be filled with grouting material. Then, the screw rod 8 is rotated and moved downward. The downward-moved screw rod 8 can squeeze the grouting material by using the second piston 9. Then, the squeezed grouting material can apply pressure to the first piston 5 in all the sleeves 4 and push the first piston 5 to slide outward. Then, the outward-sliding first piston 5 can push the inserting rod 6 out of the bottom pipe pile 1 and insert it into the soil layer, thereby improving the stability of the connection between the bottom pipe pile 1 and the soil layer. Thus, in this way, when the pipe pile is inserted into the soil layer, the reinforcement components of the pipe pile will not affect the sinking of the pipe pile;

[0032] By providing the screw rod 8, after the bottom pipe pile 1 is completely installed in the soil layer, the connecting cylinder 11 in the connecting pipe pile 2 can be sleeved outside the screw rod 8 and threadedly connected to the screw rod 8, thereby facilitating the splicing of the connecting pipe pile 2 on the top of the bottom pipe pile 1.

Claims

1. Civil construction concrete pipe piles, including pipe pile components, characterized in that: The pipe pile components include a bottom pipe pile (1) and a connecting pipe pile (2). The connecting pipe pile (2) is located directly above the bottom pipe pile (1). Inside the bottom pipe pile (1), a vertical cylinder (3) coaxial with the bottom pipe pile (1) is provided. A plurality of sleeves (4) are evenly installed between the outer circumferential surface of the vertical cylinder (3) and the inner wall of the bottom pipe pile (1). A first piston (5) is slidably connected inside the sleeve (4). An insertion rod (6) is installed on the outer end face of the first piston (5).

2. The civil engineering concrete pipe pile according to claim 1, characterized in that: The inner end of the sleeve (4) communicates with the inside of the vertical cylinder (3). The outer end of the sleeve (4) is open and penetrates to the outer surface of the bottom pipe pile (1). A spring (7) is sleeved outside the insertion rod (6).

3. The civil construction concrete pipe pile according to claim 1, characterized in that: The top of the vertical cylinder (3) is threadedly connected with a screw rod (8). The bottom of the screw rod (8) penetrates into the vertical cylinder (3) and a second piston (9) is installed. The second piston (9) is slidably connected with the vertical cylinder (3) and is located above all the sleeves (4).

4. The civil engineering concrete pipe pile according to claim 3, characterized in that: A grouting pipe (10) is inserted into the upper end of the vertical cylinder (3) and is located below the second piston (9).

5. The civil construction concrete pipe pile according to claim 3, characterized in that: At the lower end inside the connecting pipe pile (2), a connecting cylinder (11) coaxial with it is provided. The connecting cylinder (11) is located directly above the screw rod (8).

6. The civil engineering concrete pipe pile according to claim 5, characterized in that: Connecting rods (12) are installed between the outer circumferential surface of the connecting cylinder (11) and the inner wall of the connecting pipe pile (2).

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