Middle sinking assisting pipeline for sinking of open caisson

Abstract

The utility model relates to the technical field of open caissons, and discloses an open caisson sinking-assisting middle pipeline which comprises a sinking-assisting pipe, a butt joint pipe is fixedly installed at the top of the sinking-assisting pipe, a rubber pad is fixedly installed at the top of the butt joint pipe, a limiting groove is formed in the inner wall of the butt joint pipe, and the rubber pad is fixedly installed in the limiting groove. A mounting opening is formed in the bottom of the sinking assisting pipe, a plurality of air outlets are formed in the sinking assisting pipe, a dismounting and mounting mechanism is arranged in the sinking assisting pipe and comprises a cross, the cross is fixedly mounted on the inner wall of the sinking assisting pipe, a sliding plate is slidably connected to the outer wall of the cross, an inclined groove is formed in the sliding plate, and the inclined groove is communicated with the mounting opening. According to the sinking-assisting middle pipeline for sinking of the open caisson, the sinking-assisting pipe can be rapidly and conveniently mounted or dismounted by arranging the dismounting and mounting mechanism, the sinking-assisting middle pipeline is more convenient to use, and the construction efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of open caissons, in particular to a middle-placed pipe for assisting the sinking of an open caisson. Background Technique

[0002] An open caisson is a well-shaped structure. It excavates soil inside the well and sinks to the designed elevation by relying on its own gravity to overcome the frictional resistance of the well wall. Then, after concrete sealing at the bottom and filling the well holes, it becomes the foundation of a bridge pier or other structures.

[0003] The main methods for assisting the sinking of large and irregular open caissons mainly include various methods such as stepped outer walls, thixotropic mud, and air curtains. When using the air curtain to assist in sinking, a compressed air device is required to inject high-pressure air into the interior of the middle-placed pipe, and the high-pressure gas is injected between the outer wall of the open caisson and the soil through the middle-placed pipe to reduce the frictional force of the open caisson, which helps the open caisson to sink.

[0004] In order to facilitate transportation, the middle-placed pipe is usually divided into multiple sections. During construction, it needs to be assembled according to the depth of the open caisson. However, the common middle-placed pipes on the market usually use flanges and bolts for docking. When installing the middle-placed pipe, first, the flanges of the two groups of pipes need to be docked together, and then multiple bolts need to be tightened. When disassembly is required, the bolts need to be disassembled one by one, which is too cumbersome to operate and not convenient to use, seriously affecting the construction efficiency. Content of the Utility Model

[0005] The purpose of the utility model is to provide a middle-placed pipe for assisting the sinking of an open caisson to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A middle-placed pipe for assisting the sinking of an open caisson, including a sinking-assisting pipe. A docking pipe is fixedly installed at the top of the sinking-assisting pipe. A rubber pad is fixedly installed at the top of the docking pipe. A limiting groove is opened on the inner wall of the docking pipe. An installation port is opened at the bottom of the sinking-assisting pipe. Multiple air outlet openings are opened on the sinking-assisting pipe. A disassembly and assembly mechanism is arranged inside the sinking-assisting pipe. By setting the disassembly and assembly mechanism, the sinking-assisting pipes can be quickly docked, which is very convenient to use. A protection mechanism is arranged inside the sinking-assisting pipe. By setting the protection mechanism, the air outlet openings can be blocked after the sinking-assisting pipe is disassembled to prevent soil from entering the interior of the sinking-assisting pipe through the air outlet openings. The disassembly and assembly mechanism includes:

[0007] A cross, the cross is fixedly installed on the inner wall of the sinking-assisting pipe. A sliding plate is slidably connected to the outer wall of the cross. An inclined groove is opened on the sliding plate. A limiting block is fixedly installed at one end of the sliding plate away from the cross. By setting the limiting block and the limiting groove, the docking pipe can be limited inside the installation port;

[0008] Push rod, the push rod is slidably connected to the inner wall of the cross, and the push rod penetrates through the cross. A push block is fixedly installed at the top of the push rod, and a T-shaped rod is fixedly installed at the bottom of the push rod. The outer wall of the T-shaped rod fits against the inner wall of the inclined groove. By setting the T-shaped rod to cooperate with the inclined groove, the skateboard can be driven to slide on the outer wall of the cross;

[0009] Spring, the spring is sleeved on the outer wall of the cross. One end of the spring is fixedly installed on the inner wall of the sinking aid pipe, and the other end of the spring is fixedly installed on the side wall of the skateboard. By setting the spring, the skateboard can be driven to slide back to its original position.

[0010] Preferably, the protection mechanism includes a baffle, the baffle is hinged to the inner wall of the air outlet, and a through groove is opened on the baffle. By setting the baffle, the opening or closing of the air outlet can be controlled.

[0011] Preferably, a bevel ring is slidably connected to the inner wall of the limiting groove. A reed is fixedly installed at the bottom of the bevel ring, and one end of the reed away from the bevel ring is fixedly installed on the inner wall of the limiting groove. The elastic coefficient of the reed is smaller than that of the spring. By setting the reed, the bevel ring can be driven to slide back to its original position.

[0012] Preferably, a vertical rod is fixedly installed at the bottom of the bevel ring, and the vertical rod is slidably connected to the inner wall of the sinking aid pipe.

[0013] Preferably, a cross bar is fixedly installed on the outer wall of the vertical rod.

[0014] Preferably, the outer wall of the cross bar fits against the inner wall of the through groove. By setting the cross bar to cooperate with the through groove, the baffle can be driven to rotate.

[0015] Compared with the prior art, the utility model provides a mid-position pipe for assisting the sinking of a caisson, which has the following beneficial effects:

[0016] 1. For this mid-position pipe for assisting the sinking of a caisson, by setting the disassembly and assembly mechanism, the sinking aid pipe can be quickly and conveniently installed or disassembled, which is more convenient to use and effectively improves the construction efficiency.

[0017] 2. For this mid-position pipe for assisting the sinking of a caisson, by setting the protective cover mechanism, the air outlet can be blocked after the sinking aid pipe is separated, preventing soil from entering the inside of the sinking aid pipe through the air outlet and causing blockage inside the sinking aid pipe. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall bottom view structure of the utility model;

[0020] Figure 3This is a schematic cross-sectional structure diagram of the butt-joint state of the sinking pipe of the present utility model;

[0021] Figure 4 This is a schematic overall structure diagram of the protection mechanism of the present utility model;

[0022] Figure 5 This is a schematic partial structure diagram of the disassembly and assembly mechanism of the present utility model;

[0023] Figure 6 This is the present utility model Figure 3 The enlarged structure diagram at position A;

[0024] Figure 7 This is the present utility model Figure 3 The enlarged structure diagram at position B.

[0025] In the figure: 1. Sinking pipe; 2. Docking pipe; 3. Rubber pad; 4. Limiting groove; 5. Installation port; 6. Air outlet; 7. Disassembly and assembly mechanism; 71. Cross; 72. Push rod; 73. Spring; 74. Slide plate; 75. Inclined groove; 76. Limiting block; 77. Push block; 78. T-shaped rod; 8. Protection mechanism; 81. Baffle; 82. Through groove; 83. Inclined surface ring; 84. Reed; 85. Vertical rod; 86. Cross bar. Specific implementation manner

[0026] As Figures 1-7 shown, the present utility model provides a technical solution: A mid-position pipe for assisting the sinking of a caisson, including a sinking pipe 1. A docking pipe 2 is fixedly installed at the top of the sinking pipe 1. A rubber pad 3 is fixedly installed at the top of the docking pipe 2. A limiting groove 4 is opened on the inner wall of the docking pipe 2. An installation port 5 is opened at the bottom of the sinking pipe 1. The installation port 5 at the bottom of the sinking pipe 1 is sleeved on the outer wall of the docking pipe 2 at the top of another group of sinking pipes 1, and the rubber pad 3 is closely attached to the inner wall of the installation port 5, so that the two groups of sinking pipes 1 can be initially butt-jointed. A plurality of air outlets 6 are opened on the sinking pipe 1, and the high-pressure gas inside the sinking pipe 1 can be discharged through the air outlets 6. A disassembly and assembly mechanism 7 is arranged inside the sinking pipe 1. By setting the disassembly and assembly mechanism 7, the sinking pipe 1 can be quickly butt-jointed, which is very convenient to use and greatly improves the construction efficiency. A protection mechanism 8 is arranged inside the sinking pipe 1. By setting the protection mechanism 8, the air outlet 6 can be protected after the sinking pipe 1 is disassembled, and it can be avoided that soil enters the inside of the sinking pipe 1 through the air outlet 6, resulting in blockage inside the sinking pipe 1.

[0027] The above-mentioned disassembly and assembly mechanism 7 includes a cross 71, a push rod 72, a spring 73, a sliding plate 74, an inclined groove 75, a limit block 76, a pushing block 77, and a T-shaped rod 78; the cross 71 is fixedly installed on the inner wall of the sinking pipe 1, the outer wall of the cross 71 is slidably connected with the sliding plate 74, an inclined groove 75 is formed on the sliding plate 74, a limit block 76 is fixedly installed at one end of the sliding plate 74 away from the cross 71. When the sliding plate 74 slides on the outer wall of the cross 71 and stretches the spring 73, the sliding plate 74 will drive the limit block 76 to gradually move away from the inner wall of the sinking pipe 1. At this time, the installation opening 5 at the bottom of the sinking pipe 1 can be sleeved on the outer wall of the docking pipe 2 at the top of another group of sinking pipes 1, or the two groups of sinking pipes 1 can be disassembled. The push rod 72 is slidably connected to the inner wall of the cross 71, and the push rod 72 penetrates through the cross 71. A pushing block 77 is fixedly installed at the top of the push rod 72, and a T-shaped rod 78 is fixedly installed at the bottom of the push rod 72. By pushing the push rod 72 with the pushing block 77, the push rod 72 slides downward on the inner wall of the cross 71. At this time, the push rod 72 will drive the T-shaped rod 78 to move downward synchronously. The outer wall of the T-shaped rod 78 fits on the inner wall of the inclined groove 75. The spring 73 is sleeved on the outer wall of the cross 71. One end of the spring 73 is fixedly installed on the inner wall of the sinking pipe 1, and the other end of the spring 73 is fixedly installed on the side wall of the sliding plate 74. When the T-shaped rod 78 moves downward, it will fit and move on the inner wall of the inclined groove 75 and squeeze the sliding plate 74, so that the sliding plate 74 slides on the outer wall of the cross 71 and stretches the spring 73. When the T-shaped rod 78 stops squeezing the sliding plate 74, the elasticity of the spring 73 can pull the sliding plate 74 to slide and reset on the outer wall of the cross 71.

[0028] Specifically, the protection mechanism 8 includes a baffle 81, a through groove 82, an inclined surface ring 83, a reed 84, a vertical rod 85, and a horizontal rod 86; the baffle 81 is hinged to the inner wall of the air outlet 6. When the baffle 81 rotates to separate from the inner wall of the air outlet 6, the air outlet 6 remains in communication with the inside of the sinking tube 1, so as to discharge the high-pressure gas outward through the air outlet 6. When the baffle 81 rotates and fits against the inner wall of the air outlet 6, the baffle 81 can block the air outlet 6 to prevent soil from entering the inside of the sinking tube 1 through the air outlet 6 and causing blockage inside the sinking tube 1. A through groove 82 is provided on the baffle 81, and an inclined surface ring 83 is slidably connected to the inner wall of the limiting groove 4. A reed 84 is fixedly installed at the bottom of the inclined surface ring 83. When the limiting block 76 enters the inside of the limiting groove 4, it will squeeze the inclined surface ring 83, causing the inclined surface ring 83 to slide downward on the inner wall of the limiting groove 4 and compress the reed 84. One end of the reed 84 away from the inclined surface ring 83 is fixedly installed on the inner wall of the limiting groove 4. When the limiting block 76 is separated from the extrusion of the inclined surface ring 83, the elasticity of the reed 84 can drive the inclined surface ring 83 to slide upward and reset on the inner wall of the limiting groove 4. A vertical rod 85 is fixedly installed at the bottom of the inclined surface ring 83, and the vertical rod 85 is slidably connected to the inner wall of the sinking tube 1. The inclined surface ring 83 drives the vertical rod 85 to slide upward on the inner wall of the sinking tube 1. While the vertical rod 85 slides upward, it will drive the horizontal rod 86 to move upward synchronously. A horizontal rod 86 is fixedly installed on the outer wall of the vertical rod 85, and the outer wall of the horizontal rod 86 fits against the inner wall of the through groove 82. While the horizontal rod 86 moves up and down, it will fit against the inner wall of the through groove 82 and push and pull the baffle 81, so as to enable the baffle 81 to rotate on the inner wall of the air outlet 6.

[0029] Working principle: When it is necessary to dock the sinking pipe 1, first, the push block 77 is used to push the push rod 72, causing the push rod 72 to slide downward along the inner wall of the cross 71. At this time, the push rod 72 will drive the T-shaped rod 78 to move downward synchronously. At the same time, the T-shaped rod 78 will move along the inner wall of the inclined groove 75 and squeeze the sliding plate 74, causing the sliding plate 74 to slide along the outer wall of the cross 71 and stretch the spring 73. At this time, the sliding plate 74 will drive the limit block 76 to gradually move away from the inner wall of the sinking pipe 1. Then, the installation port 5 at the bottom of the sinking pipe 1 is sleeved on the outer wall of the docking pipe 2 at the top of another set of sinking pipes 1, preliminarily docking the two sets of sinking pipes 1 together. Subsequently, the push block 77 is released to stop pushing the push rod 72, so that the T-shaped rod 78 at the bottom of the push rod 72 stops squeezing the sliding plate 74. At this time, the elasticity of the spring 73 can be used to pull the sliding plate 74 to slide back to its original position along the outer wall of the cross 71. At the same time, the sliding plate 74 will drive the limit block 76 to enter the inside of the limit groove 4. At this time, the limit block 76 and the limit groove 4 are used to limit the docking pipe 2 inside the installation port 5, thus completing the docking of the two sets of sinking pipes 1. When it is necessary to disassemble the two sets of sinking pipes 1 in the docked state, the push block 77 is used to push the push rod 72, causing the push rod 72 to slide downward along the inner wall of the cross 71. At this time, the push rod 72 will drive the T-shaped rod 78 to move downward synchronously. At the same time, the T-shaped rod 78 will move along the inner wall of the inclined groove 75 and squeeze the sliding plate 74, causing the sliding plate 74 to slide along the outer wall of the cross 71 and stretch the spring 73. At this time, the sliding plate 74 will drive the limit block 76 to gradually move away from the inner wall of the sinking pipe 1 and disengage from the limit groove 4. When the limit block 76 disengages from the limit groove 4, the two sets of sinking pipes 1 can be disassembled. It is very convenient to use and greatly improves the construction efficiency.

[0030] During the process of the limiting block 76 entering the inside of the limiting groove 4, it will squeeze the inclined surface ring 83, causing the inclined surface ring 83 to slide downward along the inner wall of the limiting groove 4 and compress the reed 84. At the same time, the inclined surface ring 83 will drive the vertical rod 85 to slide downward along the inner wall of the sinking aid pipe 1. When the vertical rod 85 slides downward, it will drive the cross rod 86 to move downward synchronously. At the same time, the cross rod 86 will move along the inner wall of the through groove 82 and push the baffle 81 downward, causing the baffle 81 to rotate on the inner wall of the air outlet 6. Through the rotation of the baffle 81, the air outlet 6 can be kept in communication with the inside of the sinking aid pipe 1, so as to discharge the high-pressure gas outward through the air outlet 6. When the two sinking aid pipes 1 are disassembled, the limiting block 76 is separated from the limiting groove 4, and at the same time, the limiting block 76 is disengaged from the extrusion of the inclined surface ring 83. At this time, the elasticity of the reed 84 can drive the inclined surface ring 83 to slide upward and reset along the inner wall of the limiting groove 4. At the same time, the inclined surface ring 83 will drive the vertical rod 85 to slide upward along the inner wall of the sinking aid pipe 1. When the vertical rod 85 slides upward, it will drive the cross rod 86 to move upward synchronously. At the same time, the cross rod 86 will move along the inner wall of the through groove 82 and push the baffle 81 upward, causing the baffle 81 to rotate on the inner wall of the air outlet 6 and fit against the inner wall of the air outlet 6. At this time, the baffle 81 can block the air outlet 6 to prevent soil from entering the inside of the sinking aid pipe 1 through the air outlet 6 and causing blockage inside the sinking aid pipe 1.

[0031] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A sinking-aiding mid-pipe for sinking a caisson, comprising a sinking-aiding pipe (1), characterized in that: A butt joint pipe (2) is fixedly mounted on the top of the sinking-assisting tube (1), a rubber pad (3) is fixedly mounted on the top of the butt joint pipe (2), a limiting groove (4) is provided on the inner wall of the butt joint pipe (2), a mounting opening (5) is provided on the bottom of the sinking-assisting tube (1), a plurality of air outlets (6) are provided on the sinking-assisting tube (1), a disassembly and assembly mechanism (7) is provided inside the sinking-assisting tube (1), a protection mechanism (8) is provided inside the sinking-assisting tube (1), and the disassembly and assembly mechanism (7) comprises: A cross (71), wherein the cross (71) is fixedly mounted on the inner wall of the sinking aid pipe (1), and a slide plate (74) is slidably connected to the outer wall of the cross (71), and an inclined groove (75) is provided on the slide plate (74), and a limit block (76) is fixedly mounted on one end of the slide plate (74) away from the cross (71); A push rod (72), wherein the push rod (72) is slidably connected to the inner wall of the cross (71), and the push rod (72) passes through the cross (71), a push block (77) is fixedly installed on the top of the push rod (72), and a T-shaped rod (78) is fixedly installed on the bottom of the push rod (72), and the outer wall of the T-shaped rod (78) is attached to the inner wall of the inclined groove (75); A spring (73) is sleeved on the outer wall of the cross (71), one end of the spring (73) is fixedly mounted on the inner wall of the sinking aid tube (1), and the other end of the spring (73) is fixedly mounted on the side wall of the slide plate (74).

2. The caisson sinking aid mid-pipe according to claim 1, characterized in that: The protection mechanism (8) comprises a baffle (81), the baffle (81) is hinged to the inner wall of the air outlet (6), and a through slot (82) is provided on the baffle (81).

3. The caisson sinking aid mid-pipe according to claim 1, characterized in that: The inner wall of the limiting groove (4) is slidably connected with a bevel ring (83), the bottom of the bevel ring (83) is fixedly mounted with a spring leaf (84), and one end of the spring leaf (84) away from the bevel ring (83) is fixedly mounted on the inner wall of the limiting groove (4).

4. The caisson sinking aid mid-pipe according to claim 3, characterized in that: A vertical rod (85) is fixedly mounted on the bottom of the sloped ring (83), and the vertical rod (85) is slidably connected to the inner wall of the sinking-assisting pipe (1).

5. The mid-mounted pipeline for assisting sinking of caisson according to claim 4 is characterized by: A cross bar (86) is fixedly mounted on the outer wall of the vertical bar (85).

6. The mid-mounted pipeline for assisting sinking of a caisson according to claim 5, characterized in that: The outer wall of the cross bar (86) is fitted onto the inner wall of the through groove (82).

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