Pneumatic bolt device

Abstract

The invention relates to the technical field of auxiliary pile installation, and discloses a pneumatic bolt device which comprises a lining cylinder installed on the inner wall of an auxiliary pile, an installation disc installed on the lining cylinder and a plurality of positioning bolts used for being in butt joint with an engineering pile. The multiple pneumatic telescopic rods are evenly distributed in the circumferential direction of the mounting disc, and the telescopic end of each pneumatic telescopic rod is provided with a connecting rod. According to the pneumatic bolt device, the lining cylinder, the mounting disc, the positioning bolt and the pneumatic telescopic rods are arranged, the pneumatic telescopic rods are externally connected with an external air pump to control synchronous actions of all the pneumatic telescopic rods in a centralized mode, the telescopic ends of the pneumatic telescopic rods are controlled to stretch out and draw back, and then the connecting rods are driven to push the positioning bolt to be inserted into or separated from the positioning holes; the traditional tedious manual welding, bolt fastening or manual inserting and pulling operation is replaced, the auxiliary pile and the engineering pile can be conveniently and rapidly connected in a butt joint mode, manpower and time are saved, and installation is convenient.

Description

Technical Field

[0001] This invention relates to the field of auxiliary pile installation technology, specifically a pneumatic pin device. Background Technology

[0002] In the foundation construction of building projects, ports, docks, bridges, etc., it is often necessary to set up auxiliary piles to stabilize the main engineering piles. The connection between auxiliary piles and engineering piles is usually achieved by welding or flange bolt connection.

[0003] While welded connections are strong, they are cumbersome to operate, require professional welders and equipment, take a long time to complete, and are irreversible permanent connections that cannot be reused or quickly disassembled. Flange bolt connections also suffer from low installation efficiency, high labor intensity, and are extremely inconvenient for working at heights or underwater. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a pneumatic latch device that solves the problems mentioned in the background.

[0005] The present invention provides the following technical solution: a pneumatic pin device, comprising: an inner liner installed on the inner wall of an auxiliary pile, an installation disc installed on the inner liner, and a plurality of positioning pins for connecting engineering piles. The top of the installation disc is equipped with a plurality of pneumatic telescopic rods, which are evenly distributed along the circumference of the installation disc. Each pneumatic telescopic rod has a connecting rod installed at its telescopic end, and one end of the connecting rod is connected to one end of the positioning pin.

[0006] Multiple support blocks are installed on the top of the mounting disc. The multiple support blocks are evenly installed along the circumference of the mounting disc, and the positions of the multiple support blocks correspond one-to-one with the positions of the multiple pneumatic telescopic rods. Limiting holes are opened on the support blocks, and the surface of the positioning pin is connected to the inner wall of the limiting hole.

[0007] Preferably, the mounting disc is connected to the inner wall of the inner liner, and the upper and lower peripheral edges of the top of the mounting disc are fully welded to the inner wall of the inner liner.

[0008] Preferably, a return spring is provided between the support block and the corresponding connecting rod, and the positioning pin passes through the corresponding return spring and the limiting hole of the support block in sequence.

[0009] Preferably, each of the connecting rods has a connecting plate on its surface, one end of the return spring is connected to the surface of the connecting rod, and the other end of the return spring is connected to the surface of the support block.

[0010] Preferably, the inner liner has multiple through holes for the positioning pins to pass through, and the engineering pile has multiple positioning holes for the positioning pins to be inserted into. The positions of the multiple positioning holes and the multiple through holes correspond one-to-one with the positions of the multiple positioning pins.

[0011] Preferably, the pneumatic telescopic rod is configured to extend and retract at its telescopic end via an external air pump, thereby driving the connecting rod to push the positioning pin into or out of the positioning hole.

[0012] Preferably, the inner wall of the inner liner is provided with a plurality of mounting holes along the circumference, and the inner wall of the mounting holes is connected with anti-slip blocks, the surface of which is connected to the inner wall of the auxiliary pile.

[0013] Preferably, a plug weld is provided on the wall of the inner liner, the plug weld being 50cm long and 3cm wide.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This invention, by setting an inner liner, mounting disc, positioning pin, and pneumatic telescopic rod, connects an external air pump to centrally control the synchronous movement of all pneumatic telescopic rods, controlling the extension and retraction of the telescopic ends of the pneumatic telescopic rods, thereby driving the connecting rod to push the positioning pin into or out of the positioning hole, replacing the traditional cumbersome manual welding, bolt tightening, or manual insertion and removal operations, facilitating quick connection between auxiliary piles and engineering piles, saving manpower and time, and facilitating installation.

[0016] 2. In this invention, by setting a reset spring, when the pneumatic telescopic rod extends, the connecting plate on the connecting rod compresses the reset spring. When the pneumatic telescopic rod retracts, the reset spring tends to extend back, pushing the connecting plate to reset, thereby assisting the connecting rod and the positioning pin to reset. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is an exploded structural diagram of the positioning pin, pneumatic telescopic rod, connecting rod, support block, and return spring of the present invention.

[0019] Figure 3 This is a schematic diagram of the auxiliary pile and engineering pile structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the connection between the inner lining cylinder and the engineering pile of the present invention;

[0021] Figure 5 This is a schematic diagram of the inner liner structure of the present invention.

[0022] In the diagram: 1. Auxiliary pile; 2. Engineering pile; 3. Inner liner; 4. Mounting disc; 5. Positioning pin; 6. Pneumatic telescopic rod; 7. Connecting rod; 8. Support block; 9. Limiting hole; 10. Return spring; 11. Connecting plate; 12. Through hole; 13. Positioning hole; 14. Mounting hole; 15. Anti-slip block; 16. Plug weld. Detailed Implementation

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

[0024] See also Figure 1-5 A pneumatic pin device includes: an inner liner 3 installed on the inner wall of an auxiliary pile 1, an mounting disc 4 installed on the inner liner 3, and a plurality of positioning pins 5 for connecting to an engineering pile 2. The mounting disc 4 is connected to the inner wall of the inner liner 3, and the upper and lower circumferential edges of the top of the mounting disc 4 are fully welded to the inner wall of the inner liner 3. A plurality of pneumatic telescopic rods 6 are installed on the top of the mounting disc 4. The plurality of pneumatic telescopic rods 6 are evenly distributed along the circumference of the mounting disc 4. Each pneumatic telescopic rod 6 has a connecting rod 7 installed at its telescopic end, and one end of the connecting rod 7 is connected to one end of the positioning pin 5.

[0025] Multiple support blocks 8 are installed on the top of the mounting disc 4. The multiple support blocks 8 are evenly installed along the circumference of the mounting disc 4, and the positions of the multiple support blocks 8 correspond one-to-one with the positions of the multiple pneumatic telescopic rods 6. Limiting holes 9 are opened on the support blocks 8, and the surface of the positioning pin 5 is connected to the inner wall of the limiting hole 9.

[0026] A return spring 10 is provided between the support block 8 and the corresponding connecting rod 7. The positioning pin 5 passes through the corresponding return spring 10 and the limiting hole 9 of the support block 8 in sequence. A connecting plate 11 is provided on the surface of each connecting rod 7. One end of the return spring 10 is connected to the surface of the connecting rod, and the other end of the return spring 10 is connected to the surface of the support block 8. When the pneumatic telescopic rod 6 is controlled to extend, the connecting plate 11 on the connecting rod 7 compresses the return spring 10. When the pneumatic telescopic rod 6 is retracted, the return spring 10 tends to extend back, pushing the connecting plate 11 to reset, thereby assisting the connecting rod 7 and the positioning pin 5 to reset.

[0027] The inner liner 3 has multiple through holes 12 for the positioning pins 5 to pass through, and the engineering pile 2 has multiple positioning holes 13 for the positioning pins 5 to be inserted into. The positions of the multiple positioning holes 13 and the multiple through holes 12 correspond one-to-one with the positions of the multiple positioning pins 5. The pneumatic telescopic rod 6 is configured to be able to extend and retract the telescopic end of the pneumatic telescopic rod 6 through an external air pump, thereby driving the connecting rod 7 to push the positioning pins 5 to insert into or disengage from the positioning holes 13.

[0028] The further through hole 12 is an elliptical groove-shaped hole.

[0029] The inner wall of the inner liner 3 is provided with multiple mounting holes 14 along the circumference. The inner wall of the mounting holes 14 is connected to the anti-slip block 15. The surface of the anti-slip block 15 is connected to the inner wall of the auxiliary pile 1. The anti-slip block 15 enhances the friction between the anti-slip block 1 and the inner wall of the auxiliary pile 1. The inner wall of the inner liner 3 is provided with a plug weld 16. The plug weld 16 is 50cm long and 3cm wide.

[0030] An external air pump is connected to the pneumatic telescopic rod 6 to centrally control the synchronous movement of all pneumatic telescopic rods 6. When the auxiliary pile 1 is connected to the engineering pile 2, the inner liner 3 is inserted into the inner wall of the engineering pile 2, so that the through hole 12 on the cylinder wall of the inner liner 3 is aligned with the positioning hole 13 on the cylinder wall of the engineering pile 2. The outer cylinders on the surfaces of the auxiliary pile 1 and the engineering pile 2 are aligned, and the extension of the telescopic end of the pneumatic telescopic rod 6 is controlled. The pneumatic telescopic rod 6 drives the connecting rod 7 to move. The connecting rod 7 pushes the positioning pin 5 through the through hole 12 and into the positioning hole 13, thus completing the connection. This replaces the traditional cumbersome manual welding, bolt tightening, or manual insertion and removal. The system facilitates quick and easy connection between auxiliary pile 1 and engineering pile 2, saving manpower and time. Operators do not need to perform high-risk close-range operations near the connection point of auxiliary pile 1 and engineering pile 2. They can complete the entire connection or disconnection process simply by remotely controlling the air pump to extend or retract the telescopic end of the pneumatic telescopic rod 6. This effectively avoids safety risks such as squeezing and collision that may be caused by operating between heavy components. It is suitable for working scenarios such as high altitude, underwater, and narrow spaces, and enables repeated quick assembly and disassembly, allowing auxiliary pile 1 to be quickly reused in different projects or at different stages of the same project.

[0031] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pneumatic latching device, characterized in that, include: The inner lining cylinder (3) installed on the inner wall of the auxiliary pile (1), the mounting disc (4) installed on the inner lining cylinder (3) and the multiple positioning pins (5) for connecting the engineering pile (2), the top of the mounting disc (4) is equipped with multiple pneumatic telescopic rods (6), the multiple pneumatic telescopic rods (6) are evenly distributed along the circumference of the mounting disc (4), and each pneumatic telescopic rod (6) is equipped with a connecting rod (7) at the telescopic end, and one end of the connecting rod (7) is connected to one end of the positioning pin (5); Multiple support blocks (8) are installed on the top of the mounting disc (4). The multiple support blocks (8) are evenly installed along the circumference of the mounting disc (4), and the positions of the multiple support blocks (8) correspond one-to-one with the positions of the multiple pneumatic telescopic rods (6). Limiting holes (9) are opened on the support blocks (8), and the surface of the positioning pin (5) is connected to the inner wall of the limiting hole (9).

2. The pneumatic latching device according to claim 1, characterized in that, The mounting disc (4) is connected to the inner wall of the inner liner (3), and the upper periphery of the top of the mounting disc (4) and the lower periphery of the top of the mounting disc (4) are fully welded to the inner wall of the inner liner (3).

3. The pneumatic latching device according to claim 1, characterized in that, A reset spring (10) is provided between the support block (8) and the corresponding connecting rod (7), and the positioning pin (5) passes through the corresponding reset spring (10) and the limiting hole (9) of the support block (8) in sequence.

4. A pneumatic latching device according to claim 3, characterized in that, Each of the connecting rods (7) has a connecting plate (11) on its surface. One end of the return spring (10) is connected to the surface of the connecting rod, and the other end of the return spring (10) is connected to the surface of the support block (8).

5. A pneumatic latching device according to claim 1, characterized in that, The inner liner (3) has multiple through holes (12) for the positioning pins (5) to pass through, and the engineering pile (2) has multiple positioning holes (13) for the positioning pins (5) to be inserted into. The positions of the multiple positioning holes (13) and the multiple through holes (12) correspond one-to-one with the positions of the multiple positioning pins (5).

6. A pneumatic latching device according to claim 1, characterized in that, The pneumatic telescopic rod (6) is configured to extend and retract at the telescopic end of the pneumatic telescopic rod (6) via an external air pump, thereby driving the connecting rod (7) to push the positioning pin (5) into or out of the positioning hole (13).

7. A pneumatic latching device according to claim 1, characterized in that, At least one mounting hole (14) is provided on the wall of the inner liner (3), and a docking hole is provided on the wall of the auxiliary pile (1) corresponding to the mounting hole (14). The inner wall of the mounting hole (14) is filled with an anti-slip block (15), and one end of the anti-slip block (15) extends to the inner wall of the docking hole.

8. A pneumatic latching device according to claim 1, characterized in that, The inner liner (3) has a plug weld (16) on its cylinder wall. The plug weld (16) is 50cm long and 3cm wide.

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