Pin joint type and buckle type combined pipe pile mechanical connection structure

Abstract

The utility model relates to the technical field of pipe pile mechanical connection, and discloses a pin joint type and buckle type combined pipe pile mechanical connection structure which comprises a sleeve, an end plate is arranged in the middle of the sleeve, a steel pin rod is arranged on the inner wall of the end plate, a buckle groove is formed in the outer wall of the sleeve, a prestressed pipe pile is connected to the inner wall of the sleeve in a sleeved mode, and the prestressed pipe pile is connected with the buckle groove in a sleeved mode. A buckling groove is formed in the inner wall of the prestressed pipe pile, a buckling device is placed on the inner wall of the buckling groove, a first gasket is placed at the bottom of the buckling device, a second gasket is placed at the top of the buckling device, and a steel pin hole is formed in the inner wall of the prestressed pipe pile. According to the novel prefabricated pipe pile mechanical connecting structure combining pin joint type connection and buckle type connection, the problem of pipe pile connecting strength is solved, complicated and time-consuming welding or bolt reinforcement in the existing pile connecting process is avoided, the strength is sufficient, and meanwhile the pipe pile connecting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical connection technology for pipe piles, specifically a mechanical connection structure for pipe piles that combines pin-type and snap-fit ​​types. Background Technology

[0002] Existing devices can classify prestressed pipe pile connections into mechanical engagement connections, pin connections, snap-fit ​​connections, flange connections, and threaded connections based on the connection method. Currently, flange connections and mechanical engagement connections are widely used due to their versatility and neutrality. However, these two methods often require the use of bolts or welding during construction, resulting in low construction efficiency. On the other hand, pin connections or snap-fit ​​connections alone are difficult to meet the requirements of high-strength pile connections. Therefore, a mechanical connection structure combining pin connections and snap-fit ​​connections is needed to solve the above problems. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a mechanical connection structure for pipe piles that combines pin-type and snap-fit ​​types, thus solving the problems mentioned in the background.

[0004] This utility model provides the following technical solution: a mechanical connection structure for pipe piles combining pin and snap-fit, comprising: a sleeve, an end plate in the middle of the sleeve, a steel pin on the inner wall of the end plate, a snap-fit ​​groove on the outer wall of the sleeve, a prestressed pipe pile fitted onto the inner wall of the sleeve, a snap-fit ​​device placed on the inner wall of the snap-fit ​​groove, a first gasket placed at the bottom of the snap-fit ​​device, a second gasket placed at the top of the snap-fit ​​device, and a steel pin hole on the inner wall of the prestressed pipe pile.

[0005] Preferably, the sleeve, end plate, and prestressed pipe pile are all cylindrical, and the end plate has a hollow circle in the middle.

[0006] Preferably, the number of steel pins is eight, and the eight steel pins are evenly distributed on the upper and lower sides of the inner wall of the end plate.

[0007] Preferably, the number of the snap-fit ​​grooves is four, and the four snap-fit ​​grooves are evenly distributed on the outer wall of the sleeve.

[0008] Preferably, the snap-fit ​​groove is simultaneously formed on the outer wall of both the sleeve and the prestressed pipe pile, and the height of the prestressed pipe pile is 5mm lower than the height of the sleeve.

[0009] Preferably, the buckle slot is configured in an "L" shape, and the buckle device is also configured in an "L" shape.

[0010] Preferably, the outer wall size of the steel pin is adapted to the inner wall size of the steel pin hole, and the steel pin is gradually inserted into the inner cavity of the steel pin hole.

[0011] Preferably, the first and second gaskets are connected in two steps as the steel pin is inserted, thus completing the upper and lower connection of the prestressed pipe pile.

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

[0013] 1. This pin-type and snap-fit ​​mechanical connection structure for pipe piles, through the combination of pin-type and snap-fit ​​connections, solves the problem of pipe pile connection strength and avoids the complicated and time-consuming welding or bolt reinforcement in the existing pile splicing process. While providing sufficient strength, it also improves the efficiency of pipe pile connection.

[0014] 2. This pin-and-clamp combination mechanical connection structure for pipe piles, through the setting of clamping devices, sleeves, prestressed pipe piles, etc., allows the first and second shims on the device to be connected in two steps as the steel pin is inserted. When the clamping groove of the sleeve coincides with the clamping groove on the outer wall of the prestressed pipe pile, the insertion of the steel pin is stopped, and the clamping device and the first shim are inserted into the inner cavity of the clamping groove first. After the clamping device and the first shim are inserted, the steel pin is fully inserted into the steel pin hole in the inner wall of the prestressed pipe pile. Then, the second shim is connected from the outside of the device, thus completing the lower connection of the pipe pile. The connection of the upper pipe pile is the same. This connection method has a simple structure, is easy to install, has low cost, and reliable connection quality. Attached Figure Description

[0015] Figure 1 This is a three-dimensional top view of the structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the end plate structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the buckle structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the first gasket of this utility model;

[0020] Figure 6 This is a schematic diagram of the second gasket structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the steel pin hole structure of this utility model.

[0022] In the diagram: 1. Sleeve; 2. End plate; 3. Steel pin; 4. Clip groove; 5. Prestressed pipe pile; 6. Clip device; 7. First gasket; 8. Second gasket; 9. Steel pin hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-7 The mechanical connection structure of the pipe pile combining pin and snap-fit ​​includes: a sleeve 1, an end plate 2 in the middle of the sleeve 1, a steel pin 3 on the inner wall of the end plate 2, a snap-fit ​​groove 4 on the outer wall of the sleeve 1, a prestressed pipe pile 5 sleeved on the inner wall of the sleeve 1, a snap-fit ​​device 6 placed on the inner wall of the snap-fit ​​groove 4, a first gasket 7 placed at the bottom of the snap-fit ​​device 6, a second gasket 8 placed at the top of the snap-fit ​​device 6, and a steel pin hole 9 on the inner wall of the prestressed pipe pile 5.

[0025] Among them, the sleeve 1, end plate 2 and prestressed pipe pile 5 are all cylindrical, and the middle of the end plate 2 is hollow. Because the sleeve 1, end plate 2 and prestressed pipe pile 5 on the device are cylindrical, the end plate 2 on the device connects the upper and lower sleeves 1 in the middle of the two sleeves 1. The sleeve 1, end plate 2 and prestressed pipe pile 5 are all cylindrical, and a circular hollow is opened in the middle of the end plate 2, so that the hollow is vertically downward.

[0026] The number of steel pins 3 is eight, and the eight steel pins 3 are evenly distributed on the upper and lower sides of the inner wall of the end plate 2. Through the eight steel pins 3 on the device, the end plate 2 on the device has eight round holes in the inner wall, and each round hole corresponds to one steel pin 3, so that the steel pins 3 on the device are inserted into the eight round holes, and then the steel pins 3 are welded and fixed to the end plate 2 by welding technology.

[0027] Among them, there are four snap-fit ​​slots 4, and the four snap-fit ​​slots 4 are evenly distributed on the outer wall of the sleeve 1. Through the four snap-fit ​​slots 4 on the device, when the sleeve 1 on the device is connected to the snap-fit ​​device 6, the same number of snap-fit ​​devices 6 need to be connected into the inner cavity of the four snap-fit ​​slots 4, so that the sleeves 1 at both ends of the device need to use the snap-fit ​​slots 4 to cooperate with the snap-fit ​​device 6.

[0028] Among them, the snap-fit ​​groove 4 is opened on the outer wall of both the sleeve 1 and the prestressed pipe pile 5, and the opening height of the prestressed pipe pile 5 is 5mm lower than the opening height of the sleeve 1. The snap-fit ​​groove 4 on the device passes through the inner and outer walls of the sleeve 1 and the prestressed pipe pile 5. The diameter of the snap-fit ​​groove 4 on the outer wall of the prestressed pipe pile 5 is slightly larger than that on the outer wall of the sleeve 1. The enlarged position is at a height of 5mm lower than the sleeve 1 of the prestressed pipe pile 5.

[0029] The buckle groove 4 is set in an "L" shape, and the buckle device 6 is also set in an "L" shape. Through the buckle groove 4 and the buckle device 6 on the device, when the sleeve 1 on the device is fully sleeved on the outer wall of the prestressed pipe pile 5, the buckle device 6 is used to enter the inner cavity of the buckle groove 4, so that the buckle device 6 can clamp the inner and outer sleeve 1 and the prestressed pipe pile 5 together.

[0030] Among them, the outer wall size of the steel pin 3 is adapted to the inner wall size of the steel pin hole 9, and the steel pin 3 is gradually inserted into the inner cavity of the steel pin hole 9. By adapting the outer wall size of the steel pin 3 to the inner wall size of the steel pin hole 9, the sleeve 1 and end plate 2 on the device first use the steel pin 3 to connect with the bottom prestressed pipe pile 5, and when the top prestressed pipe pile 5 needs to be connected and installed, the steel pin 3 is used again to connect with the inner cavity of the steel pin hole 9 on the inner wall of the top prestressed pipe pile 5 from top to bottom.

[0031] The first gasket 7 and the second gasket 8 are connected in two steps as the steel pin 3 is inserted, thus completing the upper and lower connection of the prestressed pipe pile 5. The first gasket 7 and the second gasket 8 are connected in two steps as the steel pin 3 is inserted. When the snap groove 4 of the sleeve 1 and the snap groove 4 of the outer wall of the prestressed pipe pile 5 are aligned, the insertion of the steel pin 3 is stopped, and the snap fastener 6 and the first gasket 7 are inserted into the inner cavity of the snap groove 4 first. After the snap fastener 6 and the first gasket 7 are inserted, the steel pin 3 is fully inserted into the steel pin hole 9 in the inner wall of the prestressed pipe pile 5. Then the second gasket 8 is connected from the outside of the device, thus completing the lower connection of the pipe pile. The upper connection of the pipe pile is the same.

[0032] The working principle is as follows: First, a new type of precast pipe pile mechanical connection structure combining pin-type and snap-fit ​​connection is used. This solves the problem of pipe pile connection strength and avoids the complicated and time-consuming welding or bolt reinforcement in the existing pile splicing process. While providing sufficient strength, it also improves the pipe pile connection efficiency. Then, by setting up a snap-fit ​​device 6, sleeve 1, prestressed pipe pile 5, etc., the first gasket 7 and the second gasket 8 on the device are connected in two steps as the steel pin 3 is inserted. When the snap-fit ​​groove 4 of the sleeve 1 and the snap-fit ​​groove 4 on the outer wall of the prestressed pipe pile 5 are aligned, the insertion of the steel pin 3 is stopped, and the snap-fit ​​device 6 and the first gasket 7 are inserted into the inner cavity of the snap-fit ​​groove 4 first. After the snap-fit ​​device 6 and the first gasket 7 are inserted, the steel pin 3 is fully inserted into the steel pin hole 9 in the inner wall of the prestressed pipe pile 5. Then, the second gasket 8 is connected from the outside of the device, thus completing the lower connection of the pipe pile. The upper connection of the pipe pile is the same. This connection method is simple in structure, easy to install, low in cost, and reliable in connection quality.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanical connection structure for pipe piles combining pin-type and snap-fit ​​types, characterized in that, include: A sleeve (1) is provided with an end plate (2) in the middle of the sleeve (1). A steel pin (3) is provided on the inner wall of the end plate (2). A snap-fit ​​groove (4) is provided on the outer wall of the sleeve (1). A prestressed pipe pile (5) is sleeved on the inner wall of the sleeve (1). A snap-fit ​​device (6) is placed on the inner wall of the snap-fit ​​groove (4). A first gasket (7) is placed at the bottom of the snap-fit ​​device (6). A second gasket (8) is placed at the top of the snap-fit ​​device (6). A steel pin hole (9) is provided on the inner wall of the prestressed pipe pile (5).

2. The mechanical connection structure for pipe piles combining pin-type and snap-fit ​​connections according to claim 1, characterized in that, The sleeve (1), end plate (2) and prestressed pipe pile (5) are all cylindrical, and the middle of the end plate (2) is hollow and circular.

3. The mechanical connection structure for pipe piles combining pin-type and snap-fit ​​connections according to claim 1, characterized in that, The number of steel pins (3) is eight, and the eight steel pins (3) are evenly distributed on the upper and lower sides of the inner wall of the end plate (2).

4. The mechanical connection structure for pipe piles combining pin-type and snap-fit ​​types according to claim 1, characterized in that, The number of the snap-fit ​​grooves (4) is four, and the four snap-fit ​​grooves (4) are evenly distributed on the outer wall of the sleeve (1).

5. The mechanical connection structure for pipe piles combining pin-type and snap-fit ​​types according to claim 1, characterized in that, The buckle groove (4) is simultaneously opened on the outer wall of both the sleeve (1) and the prestressed pipe pile (5), and the opening height of the prestressed pipe pile (5) is 5mm lower than the opening height of the sleeve (1).

6. The mechanical connection structure for pipe piles combining pin-type and snap-fit ​​types according to claim 1, characterized in that, The buckle slot (4) is set in an "L" shape, and the buckle device (6) is also set in an "L" shape.

7. The mechanical connection structure for pipe piles combining pin-type and snap-fit ​​types according to claim 1, characterized in that, The outer wall size of the steel pin (3) is adapted to the inner wall size of the steel pin hole (9), and the steel pin (3) is gradually inserted into the inner cavity of the steel pin hole (9).

8. The mechanical connection structure for pipe piles combining pin-type and snap-fit ​​types according to claim 7, characterized in that, The first gasket (7) and the second gasket (8) are connected in two steps as the steel pin (3) is inserted, thus completing the upper and lower connection of the prestressed pipe pile (5).

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