Connecting structure for splicing precast concrete pipe piles

Abstract

The utility model discloses a connecting structure for precast concrete pipe pile splicing, the structure mainly comprises two mutually connected pipe bodies, a plurality of first grooves and a plurality of first clamping plates, when the pipe pile splicing is carried out, the pile splicing can be completed only by connecting the two ends of each first clamping plate with an end plate, and meanwhile, the first grooves and the first clamping plates are mutually connected. The two ends of the multiple first clamping plates are arranged on the two end plates correspondingly, then the two end plates are stably connected, the multiple first clamping blocks and the multiple first limiting blocks are sequentially arranged at intervals in the axial direction of the pipe body, the multiple first clamping blocks and the multiple first limiting blocks are connected in a clamped mode, and then the anti-pulling capacity of the pipe body is high.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated pipe piles, in particular to a connection structure for prefabricated concrete pipe piles. Background Art

[0002] Reinforced concrete pipe piles, also known as precast concrete pipe piles, are widely used in construction. Front and rear plates are provided at both ends of the pipe piles. During construction, multiple sections of pipe piles are driven into the soil layer on the horizontal ground in sequence. After the first pipe pile is driven in, the front and end plates of the subsequent pipe piles are connected with the rear plate of the previous pipe pile in sequence, thereby ensuring that the pipe piles are driven into the soil layer stably and vertically, and the pipe piles driven into the soil layer have good pull-out resistance.

[0003] Among them, pull-out resistance refers to the ability of the pipe pile driven into the soil layer to maintain its own stability when subjected to wind force, buoyancy of the soil layer or other upward forces, so as not to break, damage the connection or displace. Among them, the pull-out resistance mainly comes from the support and friction of the soil layer on the pipe pile or the effect of some pull-out resistance structures.

[0004] In the prior art, welding is usually performed at the connection between the front end plate and the rear end plate of two pipe piles, so that the pipe pile driven into the soil layer becomes a whole, thereby having good pull-out resistance. However, when welding the pipe piles, there are still the following problems:

[0005] 1. The welded pipe piles need to be naturally cooled to the specified temperature before they can be driven by pile drivers and other equipment. In addition, water cooling and other operations cannot be used to quickly cool the welds of the pipe piles, so it is time-consuming.

[0006] 2. The natural cooling time of the pipe pile welding point is related to many factors such as the welding position of the pipe pile, the external environment, the specifications of the pipe pile, etc. Therefore, it is impossible to accurately judge the cooling time. If the pipe pile is driven without completing cooling, the welding point of the pipe pile will be cracked, and the pipe pile will not be able to be smoothly driven into the soil layer. Even if it is driven into the soil layer, the pipe pile will be damaged due to insufficient pull-out resistance.

[0007] Therefore, there is an urgent need for a connection structure that allows the pipe piles to be connected more simply, quickly and in a time-controlled manner, while also having a strong pull-out resistance. Utility Model Content

[0008] The utility model aims to provide a connection structure for precast concrete pipe piles, which makes the pipe piles simpler, faster and time-controllable in connection and also has stronger pull-out resistance.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0010] A connection structure for precast concrete pipe piles, comprising two mutually connected pipe bodies, one end of the two mutually connected pipe bodies being provided with an end plate, characterized in that it also comprises:

[0011] A plurality of first grooves are evenly spaced in sequence on the two end plates, a plurality of first limit blocks are arranged in the first grooves, the plurality of first limit blocks are spaced in sequence along the axial direction of the tube body, and the plurality of first grooves are symmetrically arranged on the two end plates;

[0012] Multiple first clamping plates are consistent with the number of first grooves on an end plate, and the two ends of the multiple first clamping plates are respectively arranged on the two end plates. The first clamping plates are provided with multiple first clamping blocks, and each clamping block is clamped between two adjacent first limit blocks. When connecting the pipe piles, it is only necessary to connect the two ends of the first clamping plate to the end plate to complete the pile connection. At the same time, the two ends of the multiple first clamping plates are respectively arranged on the two end plates, thereby stably connecting the two end plates. The multiple first clamping blocks and the multiple first limit blocks are arranged in sequence along the axial direction of the pipe body, and the multiple first clamping blocks and the multiple first limit blocks are clamped, thereby making the pipe body have a strong pull-out resistance.

[0013] In some embodiments, the first limiting block and the first clamping block are both right-angled triangle blocks. When the direction of the slope of the first limiting block is the same as or opposite to the direction of gravity, the direction of the slope of the first clamping block is opposite to that of the first limiting block.

[0014] In some embodiments, it also includes multiple second grooves and multiple second clamping plates. The multiple second grooves are evenly spaced in sequence on the two end plates and are arranged crosswise with the first grooves. Multiple second limit blocks are provided in the second grooves. The multiple second limit blocks are spaced in sequence along the axial direction of the tube body, and the multiple second grooves on the two end plates are symmetrically arranged. The two ends of the multiple second clamping plates are respectively arranged on the two end plates. The second clamping plate is provided with multiple second clamping blocks, and each clamping block is clamped between two adjacent second limit blocks.

[0015] In some embodiments, the second limit block and the second clamping block are both right-angled triangle blocks. When the direction of the slope of the second limit block is the same as or opposite to the direction of gravity, the direction of the slope of the second clamping block is opposite to or the same as the direction of gravity, and the slope of the first limit block is opposite to the slope of the second limit block.

[0016] In some embodiments, one of the two end plates connected to each other is provided with a positioning column, and the other end plate is provided with a positioning hole, and the positioning column is arranged in the positioning hole.

[0017] In some embodiments, there are multiple positioning posts and multiple positioning holes, and the multiple positioning posts and the multiple positioning holes are respectively arranged in sequence and spaced apart along the circumferential direction of the end surfaces of the two end plates.

[0018] Compared with the prior art, the advantages of the utility model are:

[0019] In the utility model, the two ends of the multiple first clamping plates are respectively arranged on the two end plates, so that the connection between the two pipe bodies is stable. At the same time, through the clamping connection between the multiple first limit blocks and the first clamping blocks, the right-angle surface and the inclined surface of the first limit blocks are respectively abutted against the right-angle surface and the inclined surface of the first clamping block. Moreover, since the directions in which the multiple first limit blocks and the multiple first clamping blocks are arranged in sequence are consistent with the axial direction of the pipe pile, the axial connection between the two pipe bodies is further stabilized, so that the pull-out resistance of the pipe pile is relatively strong.

[0020] When connecting the pipe bodies, it is only necessary to bolt the first clamping plate and the end plate to complete the connection between the pipe bodies, thereby making the connection between the pipe bodies simpler, faster and more controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a front cross-sectional view of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0023] Figure 2 A side cross-sectional view of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0024] Figure 3 A top cross-sectional view of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0025] Figure 4 It is a front view schematic diagram of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0026] Figure 5 A schematic side view of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0027] Figure 6 A schematic top view of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0028] Figure 7 It is a front view schematic diagram of a connection structure for precast concrete pipe piles according to an embodiment of the present application without a fixing plate installed;

[0029] Figure 8 A side view schematic diagram of a connection structure for precast concrete pipe piles without a fixing plate installed according to an embodiment of the present application;

[0030] Fig. 9 It is a front view schematic diagram of two end plates of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0031] Fig.10 A schematic side view of two end plates of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0032] Fig.11 A front cross-sectional view of a first clamping plate of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0033] Fig.12 A schematic top view of a first clamping plate of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0034] Fig.13 A side view schematic diagram of a first clamping plate of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0035] Fig.14 A front cross-sectional view of a second clamping plate of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0036] Fig.15 A schematic top view of a second clamping plate of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0037] Fig.16 A side view schematic diagram of a second clamping plate of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0038] Fig.17 A schematic top view of two end plates of a connection structure for precast concrete pipe piles according to an embodiment of the present application;

[0039] Fig.18 It is a front view schematic diagram of two end plates of the connection structure for precast concrete pipe piles in the embodiment of the present application about to be connected;

[0040] Reference numerals:

[0041] 100-tube body, 110-end plate,

[0042] 200-first groove,

[0043] 300-first clamping plate, 310-first clamping block, 320-first boss,

[0044] 400-second groove,

[0045] 500-second clamping plate, 510-second clamping block, 520-second boss,

[0046] 600-Positioning column,

[0047] 700-Positioning hole,

[0048] 800- first limit block,

[0049] 900-second limit block,

[0050] 1000-fixing plate, 1100-connecting block, 1200-fixing bolt. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0052] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0053] In the description of the present utility model, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0054] In addition, the terms “first”, “second”, “third”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0055] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0056] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connection", etc. should be understood in a broad sense, for example, it can be 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0058] Example 1

[0059] It should be understood that when connecting two pipe piles, in order to make the connection between the two pipe piles stable and have strong pull-out resistance, the end plate 110 between the two pipe piles is usually welded. However, after the welding is completed, the welding point of the end plate 110 needs to be naturally cooled to a specified temperature before a pile driver or other equipment can be used for piling. At the same time, the welding point of the pipe pile cannot be quickly cooled by water cooling or other operations, so it is more time-consuming.

[0060] In addition, since the natural cooling time of the pipe pile welding point is related to many factors such as the welding position of the pipe pile, the external environment, and the specifications of the pipe pile, it is impossible to accurately judge the cooling time. If the pipe pile is driven without completing cooling, the welding point of the pipe pile will be cracked, and the pipe pile will not be able to be smoothly driven into the soil layer. Even if it is driven into the soil layer, the pipe pile will be damaged due to insufficient pull-out resistance.

[0061] Therefore, in order to improve the above-mentioned problem, the present embodiment provides a connection structure for precast concrete pipe piles, which mainly includes two pipe bodies 100, a plurality of first grooves 200 and a plurality of first clamping plates 300, so that the pipe piles can be connected more easily and quickly while also having a strong pull-out resistance.

[0062] In this embodiment, Figure 1 , Figure 3 and Figure 6 As shown, end plates 110 are provided at both ends of the tube body 100. When the two tube bodies 100 are connected, the end surfaces of the two end plates 110 fit together, wherein the end plates 110 are adapted to the tube bodies 100 and adopt a cylindrical structure.

[0063] like Figure 1-Figure 9As shown, the end plate 110 is provided with a plurality of first grooves 200, the first groove 200 having four side surfaces and a bottom surface arranged between the four side surfaces, wherein the four side surfaces of the first groove 200 are perpendicular to the bottom surface, the bottom surface of the first groove 200 is perpendicular to the horizontal ground and the bottom surface is a plane, the first grooves 200 are arranged in sequence at intervals along the circumference of the outer wall of the end plate 110, and the opening direction of the first grooves 200 is consistent with the axial direction of the tube body 100, a plurality of first limit blocks 800 are arranged in the first groove 200, and the plurality of first limit blocks 800 are arranged in sequence at intervals, specifically, the plurality of first limit blocks 800 are arranged in sequence at intervals along the axial direction of the tube body 100.

[0064] Among them, Figure 1 , Fig.11 , Fig.12 and Fig.13 As shown, the first limit block 800 can adopt a rectangular body, a right triangle body or an isosceles trapezoidal structure. In the present embodiment, the first limit block 800 adopts a right triangle. Specifically, the lengths of the two right-angled sides of the first limit block 800 are consistent, and one of the right-angled surfaces of the first limit block 800 is arranged on the bottom surface of the first groove 200, and the other right-angled surface of the first limit block 800 is perpendicular to the bottom surface of the first groove 200. When the tube body 100 is arranged on a horizontal ground, the other right-angled surface of the first limit block 800 is perpendicular to the direction of gravity, and the inclined surface of the first limit block 800 is the same as or opposite to the direction of gravity. For the convenience of description, in the present embodiment, the orientations of multiple first limit blocks 800 are all selected to be the same as the direction of gravity.

[0065] When two pipe bodies 100 are connected, the two end plates 110 fit together, and the first grooves 200 on the two end plates 110 are symmetrically arranged. Specifically, the first grooves 200 of the two end plates 110 correspond to each other one by one.

[0066] In this embodiment, Figure 9-13 As shown, the number of multiple first clip-on plates 300 is consistent with the number of first grooves 200 on an end plate 110, and the two ends of the multiple first clip-on plates 300 are respectively arranged on the outer walls of the two end plates 110, and each first clip-on plate 300 is arranged on two symmetrically arranged first grooves 200 on the two end plates 110, wherein the first clip-on plate 300 is provided with a plurality of first clip-on blocks 310, and the plurality of first clip-on blocks 310 are arranged on the first clip-on plate 300 in sequence and at intervals. Specifically, the plurality of first clip-on blocks 310 are arranged in sequence and at intervals along the direction of gravity, and when the first clip-on plate 300 is arranged on the surface of the first groove 200, each first clip-on block 310 is clipped between two adjacent first limit blocks 800 located in the same first groove 200.

[0067] Among them, the first clamping plate 300 is adapted to the end plate 110, and the two ends of the first clamping plate 300 are connected to the end plate 110 by bolts. When the first clamping plate 300 is connected to the end plate 110, the inner wall of the first clamping plate 300 fits and abuts against the surface of the end plate 110.

[0068] Among them, Figure 9-13 As shown, the first clamping block 310 can adopt a rectangular body, a right triangle body or an isosceles trapezoidal structure. In the present embodiment, the first clamping block 310 adopts a right triangle. A right-angled surface of the first clamping block 310 is arranged on the surface where the first clamping block 310 and the end plate 110 are in contact. The other right-angled surface of the first clamping block 310 is perpendicular to the direction of gravity. The direction of the inclined surface of the first clamping block 310 is opposite to or the same as the direction of gravity. Specifically, the direction of the inclined surface of the first clamping block 310 is opposite to the direction of the inclined surface of the first limiting block 800. When the first clamping block 310 is clamped between two adjacent first limiting blocks 800, the inclined surface of the first clamping block 310 abuts against the inclined surface of the first limiting block 800, and the other right-angled surface of the first clamping block 310 abuts against the other right-angled surface of the first limiting block 800, wherein the first clamping block 310 is consistent in size with the first limiting block 800.

[0069] In this embodiment, the two ends of the multiple first clamping plates 300 are respectively arranged on the two end plates 110, so that the connection between the two pipe bodies 100 is stable. At the same time, through the clamping between the multiple first limit blocks 800 and the first clamping blocks 310, the right-angled surface and the inclined surface of the first limit block 800 are respectively abutted against the right-angled surface and the inclined surface of the first clamping block 310, and because the directions in which the multiple first limit blocks 800 and the multiple first clamping blocks 310 are arranged in sequence are consistent with the axial direction of the pipe pile, the axial connection between the two pipe bodies 100 is further stabilized, so that the pull-out resistance of the pipe pile is relatively strong.

[0070] When connecting the pipe bodies 100 , it is only necessary to bolt the first clamping plate 300 and the end plate 110 to complete the connection between the pipe bodies 100 , thereby making the connection between the pipe bodies 100 simpler, faster and more controllable.

[0071] Example 2

[0072] It should be understood that since the above-mentioned first limit block 800 and the first clamping block 310 adopt an isosceles triangle structure, the right-angled surface and the inclined surface of the first limit block 800 are respectively abutted against the right-angled surface and the inclined surface of the first clamping block 310, and since the inclined surface of the first limit block 800 is consistent with the direction of gravity, therefore, in the above structure, when the upper tube body 100 of the two tube bodies 100 is subjected to a force opposite to the direction of gravity, the inclined surface of the first limit block 800 and the inclined surface of the first clamping block 310 squeeze each other, thereby generating a force opposite to the direction of gravity, thereby making the tube body 100 have an anti-pullout effect, but since both are inclined surfaces, the two inclined surfaces will also have a tendency to slide against each other. Therefore, if the force applied to the tube body 100 is too large, the effect of the first limit block 800 and the first clamping block 310 on the tube body 100 will be weakened.

[0073] Therefore, in order to solve the above problem, based on the above embodiment, in this embodiment, the connection structure further includes a plurality of second grooves 400 and a plurality of second clamping plates 500 .

[0074] Among them, Figure 2 and Fig.10 As shown, a plurality of second grooves 400 are arranged on the end plate 110, and the plurality of second grooves 400 and the first grooves 200 are arranged in sequence and cross-spaced on the outer wall of the end plate 110, and the second groove 400 has four side surfaces and a bottom surface arranged between the four side surfaces, wherein the second groove 400 has four side surfaces and a bottom surface arranged between the four side surfaces, wherein the four side surfaces of the second groove 400 are perpendicular to the bottom surface, the bottom surface of the second groove 400 is perpendicular to the horizontal ground and the bottom surface is a plane, the second grooves 400 are arranged in sequence and spaced apart along the circumference of the outer wall of the end plate 110, and the opening direction of the second grooves 400 is consistent with the axial direction of the tube body 100, and a plurality of second limit blocks 900 are arranged in the second groove 400, and the plurality of second limit blocks 900 are arranged in sequence and spaced apart, specifically, the plurality of second limit blocks 900 are spaced apart in sequence along the axial direction of the tube body 100.

[0075] Among them, Fig.10 , Fig.14 , Fig.15 and Fig.16As shown, the second limit block 900 can adopt a rectangular body, a right triangle body or an isosceles trapezoidal structure. In this embodiment, the second limit block 900 adopts a right triangle. Specifically, the lengths of the two right-angled sides of the second limit block 900 are consistent, and one of the right-angled surfaces of the second limit block 900 is arranged on the bottom surface of the second groove 400, and the other right-angled surface of the second limit block 900 is perpendicular to the bottom surface of the second groove 400. When the tube body 100 is set on a horizontal ground, the other right-angled surface of the second limit block 900 is perpendicular to the direction of gravity, and the inclined surface of the second limit block 900 is the same as or opposite to the direction of gravity. For the convenience of description, in this embodiment, the orientations of multiple second limit blocks 900 are all selected to be opposite to the direction of gravity.

[0076] When two pipe bodies 100 are connected, the two end plates 110 fit together, and the second grooves 400 on the two end plates 110 are symmetrically arranged. Specifically, the second grooves 400 of the two end plates 110 correspond to each other one by one.

[0077] In this embodiment, Figure 14-16 As shown, the number of multiple second clip-on plates 500 is consistent with the number of second grooves 400 on an end plate 110, and the two ends of the multiple second clip-on plates 500 are respectively arranged on the outer walls of the two end plates 110, and each second clip-on plate 500 is arranged on two symmetrically arranged second grooves 400 on the two end plates 110, wherein the second clip-on plate 500 is provided with a plurality of second clip-on blocks 510, and the plurality of second clip-on blocks 510 are arranged on the second clip-on plate 500 in sequence and at intervals. Specifically, the plurality of second clip-on blocks 510 are arranged in sequence and at intervals along the direction of gravity, and when the second clip-on plate 500 is arranged on the surface of the second groove 400, each second clip-on block 510 is clipped between two adjacent second limit blocks 900 located in the same second groove 400.

[0078] Among them, Figure 2 and Figure 3 As shown, the second clip plate 500 is adapted to the end plate 110 , and both ends of the second clip plate 500 are connected to the end plate 110 by bolts. When the second clip plate 500 is connected to the end plate 110 , the inner wall of the second clip plate 500 fits and abuts against the surface of the end plate 110 .

[0079] Among them, Figure 2 , Fig.14 , Fig.15 and Fig.16As shown, the second clamping block 510 can adopt a rectangular body, a right triangle body or an isosceles trapezoidal structure. In the present embodiment, the second clamping block 510 adopts a right triangle. A right-angled surface of the second clamping block 510 is arranged on the surface where the second clamping block 510 and the end plate 110 are in contact. The other right-angled surface of the second clamping block 510 is perpendicular to the direction of gravity. The inclined surface of the second clamping block 510 is in the opposite direction to or the same as the direction of gravity. Specifically, the inclined surface of the second clamping block 510 is in the opposite direction to the inclined surface of the second limit block 900. When the second clamping block 510 is clamped between two adjacent second limit blocks 900, the inclined surface of the second clamping block 510 abuts against the inclined surface of the second limit block 900, and the other right-angled surface of the second clamping block 510 abuts against the other right-angled surface of the second limit block 900, wherein the second clamping block 510 is consistent in size with the second limit block 900.

[0080] In this embodiment, since the first groove 200, the second groove 400, the first clamping plate 300 and the second clamping plate 500 are all arranged in sequence and spaced apart and cross-arranged on the outer wall of the end plate 110, the tube body 100 is evenly stressed. At the same time, the inclined surfaces of the first clamping block 310 and the second clamping block 510 are oriented in opposite directions, and the inclined surfaces of the first limit block 800 and the second limit block 900 are oriented in opposite directions. The action directions of the first clamping block 310 and the first limit block 800 are opposite to gravity, and the action directions of the second clamping block 510 and the second limit block 900 are the same as gravity, thereby causing an interlocking phenomenon between the first clamping block 310 and the first limit block 800 and the second clamping block 510 and the second limit block 900, thereby making the tube body 100 have a stronger pull-out resistance.

[0081] Among them, Figure 1 , Fig.11 and Fig.12 As shown, the inner wall of the first clip-on plate 300 is provided with a first boss 320 adapted to the first groove 200, wherein the number of the first boss 320 is two, and the two first bosses 320 are respectively arranged at the upper and lower ends of the first clip-on plate 300, so that the two first bosses 320 can be respectively inserted into the two first grooves 200 symmetrically arranged on the two end plates 110 connected to each other.

[0082] A plurality of first clamping blocks 310 are arranged in sequence and at intervals on the surface of the first boss 320. Specifically, a side of the first boss 320 facing away from the end plate 110 is in contact with the inner wall of the first clamping plate 300, and a surface of the first boss 320 facing the end plate 110 is parallel to the inner wall of the first groove 200 and is a plane. When the first clamping plate 300 is arranged on the surface of the first groove 200, the first boss 320 of the first clamping plate 300 is inserted into the first groove 200, and the surface of the first boss 320 of the first clamping plate 300 is in contact with the four side surfaces of the first groove 200, so that the first clamping quick-clamp is clamped with the first limit block 800.

[0083] Among them, Figure 2 , Fig.14 and Fig.15 As shown, the inner wall of the second clip-on plate 500 is provided with a second boss 520 adapted to the second groove 400, wherein the number of the second boss 520 is two, and the two second bosses 520 are respectively arranged at the upper and lower ends of the second clip-on plate 500, so that the two second bosses 520 can be respectively inserted into the two second grooves 400 symmetrically arranged on the two end plates 110 connected to each other.

[0084] A plurality of second clamping blocks 510 are arranged in sequence and at intervals on the surface of the second boss 520. Specifically, a side of the second boss 520 facing away from the end plate 110 is in contact with the inner wall of the second clamping plate 500, and a surface of the second boss 520 facing the end plate 110 is parallel to the inner wall of the second groove 400 and is a plane. When the second clamping plate 500 is arranged on the surface of the second groove 400, the second boss 520 of the second clamping plate 500 is inserted into the second groove 400, and the surface of the second boss 520 of the second clamping plate 500 is in contact with the four side surfaces of the second groove 400, so that the second clamping quick-connect is clamped with the second limit block 900.

[0085] Example 3

[0086] According to the structure of the above embodiment, in this embodiment, Figure 3 , Fig.17 and Fig.18As shown, in order to facilitate the connection of the pipe body 100, a plurality of positioning columns 600 are provided on the end face of one end plate 110, and a plurality of positioning holes 700 are provided on the end face of the other end plate 110, and the plurality of positioning columns 600 are sequentially spaced along the circumference of the end face of the end plate 110, and the plurality of positioning holes 700 are sequentially spaced along the end face of the other end plate 110. When the pipe body 100 is connected to the pile, the positioning columns 600 are inserted into the positioning holes 700, thereby completing the positioning of the two pipe bodies 100, thereby making the connection of the pipe body 100 more accurate and convenient. At the same time, the plurality of positioning columns 600 are inserted into the positioning holes 700, so that the two pipe bodies 100 will not rotate relative to each other, thereby further stabilizing the connection of the two pipe bodies 100.

[0087] Example 4

[0088] According to the connection structure mentioned in the above embodiment, in this embodiment, Figure 1-Figure 6 As shown, the connection structure also includes two fixing plates 1000, which are adapted to the end plate 110, and the two fixing plates 1000 have a semicircular structure, wherein the two fixing plates 1000 are arranged around the first clamping plate 300 and the second clamping plate 500 on a side away from the end plate 110. Specifically, the two fixing plates 1000 are both against the bolts on the surface of the first clamping plate 300 and the second clamping plate 500, so as to prevent the bolts from being loosened due to external influences such as vibration.

[0089] Among them, the upper and lower ends of the two fixing plates 1000 extend toward the end plate 110 until they are in contact with the surface of the end plate 110, so that the first clamping plate 300 and the second clamping plate 500 are both located in the space enclosed by the fixing plate 1000, thereby protecting the first clamping plate 300 and the second clamping plate 500, and preventing the first clamping plate 300 and the second clamping plate 500 from being affected by the external environment, such as: corrosion by liquid in the soil layer, scratches by sand and gravel, etc., and because the two fixing plates 1000 abut against the fixing bolts 1200 on the surface of the first clamping plate 300 and the second clamping plate 500, the first clamping plate 300 and the second clamping plate 500 are assisted in connecting to the pipe body 100, so that the connection of the pipe body 100 is stable.

[0090] Among them, when the two fixing plates 1000 are surrounded by the surface of the end plate 110, the two side end surfaces of the two fixing plates 1000 are respectively in contact with each other. In this embodiment, connecting blocks 1100 are respectively provided at both ends of the outer wall of the fixing plate 1000. Specifically, when the side end surfaces of the two fixing plates 1000 are in contact, the surfaces of the fixing blocks at both ends of the outer wall of the two fixing plates 1000 are in contact, and the two connecting blocks 1100 in contact with each other are connected by fixing bolts 1200. Among them, the number of fixing bolts 1200 used when connecting the two connecting blocks 1100 can be selected according to the length of the connecting plate. In this embodiment, the number of fixing bolts 1200 is five, and the five fixing bolts 1200 are arranged on the connecting plate at intervals in sequence, and the two adjacent fixing bolts 1200 face opposite directions, so that the five fixing bolts 1200 are interlocked, thereby making the connection between the two connecting blocks 1100 stable.

Claims

1. A connection structure for precast concrete pipe piles, comprising two mutually connected pipe bodies (100), wherein one end of the two mutually connected pipe bodies (100) is provided with an end plate (110), characterized in that: Also includes: A plurality of first grooves (200) are evenly spaced in sequence on the two end plates (110); a plurality of first limit blocks (800) are arranged in the first grooves (200); the plurality of first limit blocks are spaced in sequence along the axial direction of the tube body (100); and the plurality of first grooves (200) are symmetrically arranged on the two end plates (110); A plurality of first snap-in plates (300) are provided, the number of which is consistent with the number of the first grooves (200) on one of the end plates (110); the two ends of the plurality of first snap-in plates (300) are respectively arranged on the two end plates (110); the first snap-in plates (300) are provided with a plurality of first snap-in blocks (310), and each of the first snap-in blocks (310) is snap-connected between two adjacent first limit blocks (800).

2. The connection structure for precast concrete pipe piles according to claim 1, characterized in that: The first limiting block (800) and the first clamping block (310) are both right-angled triangle blocks. When the direction of the inclined surface of the first limiting block (800) is the same as or opposite to the direction of gravity, the direction of the inclined surface of the first clamping block (310) is opposite to the direction of the inclined surface of the first limiting block (800).

3. The connection structure for precast concrete pipe piles according to claim 2 is characterized in that: The invention also comprises a plurality of second grooves (400) and a plurality of second clamping plates (500). The plurality of second grooves (400) are evenly spaced in sequence on the two end plates (110) and are arranged crosswise with the first grooves (200). The second grooves (400) are provided with a plurality of second limit blocks (900). The plurality of second limit blocks are spaced in sequence along the axial direction of the tube body (100), and the plurality of second grooves (400) on the two end plates (110) are symmetrically arranged. The two ends of the plurality of second clamping plates (500) are respectively arranged on the two end plates (110). The second clamping plates (500) are provided with a plurality of second clamping blocks (510), and each second clamping block (510) is clamped between two adjacent second limit blocks (900).

4. The connection structure for precast concrete pipe piles according to claim 3 is characterized in that: The second limiting block (900) and the second clamping block (510) are both right-angled triangle blocks. When the direction of the inclined surface of the second limiting block (900) is the same as or opposite to the direction of gravity, the direction of the inclined surface of the second clamping block (510) is the same as or opposite to the direction of gravity, and the direction of the inclined surface of the first limiting block (800) is opposite to the direction of the inclined surface of the second limiting block (900).

5. The connection structure for precast concrete pipe piles according to claim 3 is characterized in that: One of the two end plates (110) connected to each other is provided with a positioning column (600), and the other end plate (110) is provided with a positioning hole (700), and the positioning column (600) is arranged in the positioning hole (700).

6. The connection structure for precast concrete pipe piles according to claim 5, characterized in that: The number of the positioning posts (600) and the positioning holes (700) is plural, and the plurality of positioning posts (600) and the plurality of positioning holes (700) are respectively arranged in sequence and spaced apart along the circumferential direction of the end surfaces of the two end plates (110).

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