Prestressed pipe pile foundation pit supporting pile connector

Abstract

The utility model relates to the technical field of supporting piles, in particular to a prestressed pipe pile foundation pit supporting pile connector which comprises a positioning prestressed pipe pile and an extending prestressed pipe pile, a connecting sleeve is fixedly welded to one end of the positioning prestressed pipe pile, a connecting plug is fixedly installed at one end of the extending prestressed pipe pile, and the connecting plug is inserted into the connecting sleeve. Connecting discs are fixedly welded to the positioning prestressed pipe pile and the extending prestressed pipe pile, the connecting discs are connected through screwing type pressing and leveling assemblies, connecting steel plates are welded to the inner walls after the connecting discs are fixedly connected, and the connecting steel plates are fixedly connected with circular hoops in a sleeved mode; according to the fixing device, the extension prestressed pipe pile and the positioning prestressed pipe pile can be fixed, the extension prestressed pipe pile and the positioning prestressed pipe pile can be kept consistent in the vertical direction, the problem that the welding position is broken again due to stress is avoided, and the welding firmness of the welding seam position is improved.

Description

Technical Field

[0001] The utility model specifically relates to a prestressed pipe pile foundation pit supporting pile joint, belonging to the technical field of supporting piles. Background Art

[0002] Foundation pit support is a measure of support, reinforcement and protection for the side walls and surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. Prestressed pipe piles are used as support piles in deep foundation pit support. When the support depth exceeds the length of a single prestressed pipe pile, it is difficult to meet the force requirements if the joints are not strengthened. Therefore, the support depth limits the application of prestressed pipe piles as support piles in deep foundation pits. In order to enable prestressed pipe piles to be used in foundation pits with a larger support depth, the connections at the joints of the prestressed pipe piles are reinforced. For example, the announcement number (CN216551980U) discloses a prestressed pipe pile connection structure for strengthening foundation pit support, which relates to the field of pipe pile connection, including pipe piles, the outer side of the end of the pipe pile is coated with an annular steel plate, the inner wall of the annular steel plate is fixedly connected to the pipe pile by shear nails, both ends of the pipe pile are fixedly connected with end plates, the outer sides of two adjacent end plates are welded together by connecting steel plates, a weld is provided between the connecting steel plate and the end plate, the interior of the pipe pile is inlaid with prestressed steel bars, and the prestressed steel bars on two adjacent pipe piles are connected by welding. The utility model improves the bending and shearing resistance at the pipe pile joint by coating the outer side of the end of the pipe pile with an annular steel plate, providing an end plate at the connection of the two pipe piles, and welding the two end plates by multiple connecting steel plates, thereby ensuring the stability and reliability of the pipe pile joint connection.

[0003] However, when the above technical solution is used, it lacks the function of positioning adjacent pipe piles and cannot ensure that adjacent pipe piles remain consistent in the same direction, which can easily cause the overall tilt of the pipe piles and easily cause the welding position to break again due to stress. The welding firmness of the weld position is not high, which affects the support effect of the pipe piles and has certain disadvantages during use.

[0004] In view of this, the present utility model is proposed. Summary of the invention

[0005] The purpose of the utility model is to provide a prestressed pipe pile foundation pit supporting pile joint in order to solve the above-mentioned problem, which has the advantage of being able to fix the extended prestressed pipe pile on the positioned prestressed pipe pile, and can make the extended prestressed pipe pile consistent with the positioned prestressed pipe pile in the vertical direction, avoid the problem of fracture at the welding position due to stress, improve the firmness of the welding at the weld position, and effectively improve the construction effect of the pipe pile.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a prestressed pipe pile foundation pit supporting pile joint, comprising a positioning prestressed pipe pile and an extended prestressed pipe pile, one end of the positioning prestressed pipe pile is fixedly welded with the connecting sleeve, one end of the extended prestressed pipe pile is fixedly installed with the connecting plug, the connecting plug is inserted into the connecting sleeve, the positioning prestressed pipe pile and the extended prestressed pipe pile are both fixedly welded with the connecting disk, the connecting disks are connected by the screw-type tightening and leveling assembly, the connecting disks are fixedly connected and the connecting steel plate is welded on the inner wall, and the connecting steel plate is fixedly sleeved with the circular hoop.

[0007] Furthermore, in order to enable the vertical connecting rod to rotate in the clearance slot by controlling the screwing head, the screw-type clamping and leveling assembly includes the vertical connecting rod, the vertical connecting rod is embedded in the clearance slot opened on the connecting plate, the screwing head is fixedly installed on the top of the vertical connecting rod, and the screwing head is provided with a cross-shaped socket.

[0008] Furthermore, in order to enable the abutment plate to be detachably connected to the vertical connecting rod through the connecting screw, the abutment plate is installed at one end of the vertical connecting rod, and the connecting screw is fixedly installed on the abutment plate. The abutment plate is threadably inserted into the threaded hole opened at the bottom of the vertical connecting rod through the connecting screw, and the connecting nut is fixedly installed at the bottom of the ground plate.

[0009] Furthermore, in order to be able to press upward against the connection disk on the positioning prestressed pipe pile through the abutment plate, the abutment plate is located below the connection disk on the positioning prestressed pipe pile.

[0010] Furthermore, in order to resist the up and down movement of the lifting slider by controlling the rotation of the vertical connection, the lifting slider is sleeved on the vertical connecting rod, and the lifting slider is threadedly engaged in a thread groove provided on the vertical connecting rod.

[0011] Furthermore, in order to limit the lifting slider by the vertical limit block to prevent the lifting slider from rotating and deviating, the vertical limit block is fixedly installed on the lifting slider, and the vertical limit block is slidably engaged in the yielding slot.

[0012] Furthermore, in order to press the connecting plate on the extended prestressed pipe pile downwardly through the pressing side ears, the lifting slider is located above the connecting plate on the extended prestressed pipe pile, and the pressing side ears are fixedly installed on the lifting connection block.

[0013] Furthermore, in order to make the circular hoop rigid, the circular hoop is made of steel bars that are bent and welded.

[0014] The technical effects and advantages of the utility model are as follows: the extended prestressed pipe piles and the positioned prestressed pipe piles can be fixed by means of a screw-type compression and leveling assembly, so that the extended prestressed pipe piles can be kept consistent with the positioned prestressed pipe piles in the vertical direction, thus avoiding the problem of fracture at the welding position due to stress, improving the firmness of the welding at the weld position, and achieving better pipe pile support effect and stronger practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the positioning prestressed pipe pile and the extended prestressed pipe pile of the utility model;

[0018] Figure 4 This is a structural schematic diagram of the screw-type pressing and leveling assembly of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the connection disk of the utility model;

[0020] In the figure: 1. Positioning prestressed pipe piles; 2. Extending prestressed pipe piles; 3. Connecting sleeves; 4. Connecting plugs; 5. Connecting discs; 6. Screw-type clamping and leveling components; 601. Vertical connecting rods; 602. Screw heads; 603. Abutment plates; 604. Connecting screws; 605. Connecting nuts; 606. Lifting sliders; 607. Vertical limit blocks; 608. Clamping side ears; 7. Connecting steel plates; 8. Round hoops. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 5As shown, a prestressed pipe pile foundation pit support pile joint includes a positioning prestressed pipe pile 1 and an extended prestressed pipe pile 2. A connecting sleeve 3 is fixedly welded at one end of the positioning prestressed pipe pile 1, and a connecting plug 4 is fixedly installed at one end of the extended prestressed pipe pile 2. The connecting plug 4 is inserted into the connecting sleeve 3. When the positioning prestressed pipe pile 1 cannot meet the requirements of a deeper pipe pile foundation pit, the connecting plug 4 is inserted into the connecting sleeve 3 to facilitate the connection of the extended prestressed pipe pile 2 with the positioning prestressed pipe pile 1, so as to meet the requirements of pipe pile foundation pits of different depths. The positioning prestressed pipe pile 1 and the extended prestressed pipe pile 2 are both fixedly welded with connecting plates 5, and the connecting plates 5 are connected to each other. They are connected through a screw-type tightening and leveling component 6. Under the action of the screw-type tightening and leveling component 6, the positioning prestressed pipe pile 1 and the extended prestressed pipe pile 2 are kept consistent in the vertical direction to avoid tilting of the pipe pile construction. After the connecting plates 5 are fixedly connected, a connecting steel plate 7 is welded on the inner wall. The connecting steel plate 7 is fixedly sleeved with a round hoop 8. The round hoop 8 is made of bent and welded steel bars. When subjected to horizontal pressure during the support process, the bending strength of the connecting steel plate 7 itself can offset part of the horizontal force, reduce the force at the connection between the positioning prestressed pipe pile 1 and the extended prestressed pipe pile 2, and make the overall stability of the pipe pile higher.

[0023] The screw-type compression and leveling assembly 6 includes a vertical connecting rod 601, which is embedded in a yielding slot provided on the connecting plate 5. A screwing head 602 is fixedly installed on the top of the vertical connecting rod 601, and a cross-shaped socket is provided on the screwing head 602. When in use, the vertical connecting rod 601 can be rotated by directly controlling the rotation of the screwing head 602, or a drill bit adapted to the cross-shaped socket can be inserted into the cross-shaped socket, and the vertical connecting rod 601 can also be rotated by controlling the rotation of the drill bit. An abutment plate 603 is installed at one end of the vertical connecting rod 601, and a connecting screw 604 is fixedly installed on the abutment plate 603. The connecting plate 603 is threadedly inserted into the threaded hole opened at the bottom of the vertical connecting rod 601 through the connecting screw 604, and a connecting nut 605 is fixedly installed at the bottom of the ground connecting plate. The abutment plate 603 is located below the connecting disk 5 on the positioning prestressed pipe pile 1. By controlling the connecting nut 605, the abutment plate 603 drives the connecting screw 604 to rotate in the threaded hole, so as to fix the abutment plate 603 on the vertical connecting rod 601, and also facilitate the removal of the abutment plate 603 from the vertical connecting rod 601, thereby facilitating the extraction of the vertical connecting rod 601 from the yielding slot, making the overall disassembly and assembly of the screw-type clamping and leveling assembly 6 more flexible and convenient.

[0024] A lifting slider 606 is sleeved on the vertical connecting rod 601, and the lifting slider 606 is threadedly engaged in the threaded groove provided on the vertical connecting rod 601, and a vertical limit block 607 is fixedly installed on the lifting slider 606, and the vertical limit block 607 is slidably engaged in the yielding slot, the lifting slider 606 is located above the connecting plate 5 on the extended prestressed pipe pile 2, and a clamping side ear 608 is fixedly installed on the lifting connecting block, the vertical connecting rod 601 is controlled to rotate, so that the lifting slider 606 moves downward on the vertical connecting rod 601 under the action of the vertical limit block 607, driving the clamping side ear 608 to press the connecting plate 5 on the extended prestressed pipe pile 2 downward, and making the abutment plate 603 upwardly press the connecting plate 5 on the positioning prestressed pipe pile 1, so that the extended prestressed pipe pile 2 and the positioning prestressed pipe pile 1 maintain consistency in the vertical direction, and the extended prestressed pipe pile 2 and the positioning prestressed pipe pile 1 can be fixed, so as to make the weld more firm.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A prestressed pipe pile foundation pit support pile joint, comprising a positioning prestressed pipe pile (1) and an extended prestressed pipe pile (2), characterized in that: A connecting sleeve (3) is fixedly welded to one end of the positioning prestressed pipe pile (1), a connecting plug (4) is fixedly installed to one end of the extended prestressed pipe pile (2), the connecting plug (4) is plugged into the connecting sleeve (3), the positioning prestressed pipe pile (1) and the extended prestressed pipe pile (2) are both fixedly welded to connecting plates (5), the connecting plates (5) are connected to each other via a screw-type compression and leveling assembly (6), and after the connecting plates (5) are fixedly connected, a connecting steel plate (7) is welded to the inner wall, and a round hoop (8) is fixedly sleeved on the connecting steel plate (7).

2. The prestressed pipe pile foundation pit support pile joint according to claim 1, characterized in that: The screw-type pressing and leveling assembly (6) comprises a vertical connecting rod (601), the vertical connecting rod (601) being embedded in a clearance slot hole provided on the connecting plate (5), a screwing head (602) being fixedly mounted on the top of the vertical connecting rod (601), and a cross-shaped plug hole being provided on the screwing head (602).

3. The prestressed pipe pile foundation pit support pile joint according to claim 2, characterized in that: An abutment plate (603) is installed at one end of the vertical connecting rod (601), a connecting screw (604) is fixedly installed on the abutment plate (603), the abutment plate (603) is threadedly inserted into a threaded hole opened at the bottom of the vertical connecting rod (601) through the connecting screw (604), and a connecting nut (605) is fixedly installed at the bottom of the ground plate.

4. The prestressed pipe pile foundation pit support pile joint according to claim 3, characterized in that: The abutment plate (603) is located below the connection plate (5) on the positioning prestressed pipe pile (1).

5. The prestressed pipe pile foundation pit support pile joint according to claim 2, characterized in that: A lifting slider (606) is sleeved on the vertical connecting rod (601), and the lifting slider (606) is threadedly engaged in a thread groove provided on the vertical connecting rod (601).

6. The prestressed pipe pile foundation pit support pile joint according to claim 5, characterized in that: A vertical limit block (607) is fixedly mounted on the lifting slide block (606), and the vertical limit block (607) is slidably engaged in the clearance slot.

7. The prestressed pipe pile foundation pit support pile joint according to claim 5, characterized in that: The lifting slide block (606) is located above the connection plate (5) on the extended prestressed pipe pile (2), and a clamping side ear (608) is fixedly mounted on the lifting connection block.

8. The prestressed pipe pile foundation pit support pile joint according to claim 1, characterized in that: The circular hoop (8) is made by bending and welding steel bars.

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