Pipe jacking machine for water conservancy project

Abstract

The utility model relates to the technical field of pipe jacking machines, and discloses a pipe jacking machine for hydraulic engineering, which comprises a bracket, the inner side of the bracket is fixedly connected with a bottom plate, and the left side of the bottom plate is fixedly connected with an air cylinder and a supporting rod. When a pressing plate is extruded, the pressing plate pushes an abutting rod to be inserted into a square hole and abut against the inclined face of an inclined face block, so that the inclined face block is driven to rotate, when the inclined face block rotates, an arc-shaped spring is compressed firstly, a rotating ring rotates together, and when the rotating ring rotates, a hinge block is driven to rotate together; when the pipeline is pushed by the connecting box, the hinge blocks pull the arc-shaped rods, meanwhile, the arc-shaped rods pull the supporting rods, the supporting rods slide along the abutting grooves, the supporting blocks can be driven by the supporting rods to support the inner wall of the pipeline, and through the six sets of supporting blocks arranged in an array, the axis of the pipeline is kept stable and does not deviate when the pipeline is pushed by the connecting box.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking machines, in particular to a pipe jacking machine for water conservancy projects. Background Art

[0002] A pipe jacking machine is a construction equipment used in water conservancy projects. Its main function is to be used in underground pipeline construction. A pipe jacking machine is generally composed of a propeller, a pipe jacking machine body, a pipe segment conveyor, and a control system. The working principle of a pipe jacking machine is to push the pipe jacking machine body forward through the propeller, and at the same time connect the pipe segments fed by the pipe segment conveyor one by one into a continuous pipeline. The pipe jacking machine body generally has parts such as a cutter disc and a propulsion cylinder. The cutter disc is used to cut the soil layer, and the propulsion cylinder is used to push the machine body forward. The propeller is generally driven by a hydraulic system and can be adjusted as needed.

[0003] However, most of the existing pipe jacking machines use a propulsion device to directly push one end of the pipe, but most of the pipe jacking machines cannot adapt to pipes of various sizes, and directly push the side of the pipe, so that the force is single, which is easy to cause deformation and damage. Utility Model Content

[0004] The utility model aims to provide a pipe jacking machine for water conservancy projects to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a pipe jacking machine for water conservancy engineering, comprising a bracket, a bottom plate is fixedly connected to the inner side of the bracket, a cylinder and a support rod are fixedly connected to the left side of the bottom plate, a slider is penetrated and slidably connected to the support rod, a ring is fixedly connected to the left side of the support rod, a control unit is arranged on the inner side of the bracket, and the control unit comprises:

[0006] A connection box, the right side of which is fixedly connected to the output shaft of the cylinder, when the cylinder is started, the output shaft of the cylinder will push the connection box, thereby causing the connection box to gradually move in the direction of the pipeline, a fixing plate is fixedly connected to the inner side of the connection box, a square hole is provided on the surface of the fixing plate, a reset extrusion spring is fixedly connected to the left side of the fixing plate, the connection box gradually moves in the direction of the pipeline, and the extrusion spring drives the pressing plate to move in the direction of the pipeline, the pressing plate is fixedly connected to one end of the extrusion spring away from the fixing plate, and a resisting rod is fixedly connected to the right side of the pressing plate;

[0007] A rotating ring, the rotating ring is rotatably connected to the inner side of the connection box, a limiting groove is provided on the surface of the rotating ring, a limiting rod is fixedly connected to the inner side of the connection box, and the limiting rod passes through the limiting groove;

[0008] A ramp block, wherein the side of the ramp block close to the rotating ring is fixedly connected to the surface of the rotating ring, an arc spring is fixedly connected to the surface of the ramp block, and an end of the arc spring away from the ramp block is fixedly connected to a square plate. When the pressing plate is squeezed, the pressing plate pushes the resistance rod to insert into the square hole and resist the inclined surface of the ramp block, thereby driving the ramp block to rotate, and the square plate is fixedly connected to the inner wall of the connecting box.

[0009] Preferably, a hinge block is fixedly connected to the inner side of the rotating ring, and an arc rod is hinged on the surface of the hinge block. When the rotating ring rotates, it will drive the hinge block to rotate together, so that the hinge block pulls the arc rod, and the end of the arc rod away from the hinge block passes through and is fixedly connected to a support rod.

[0010] Preferably, a support block is fixedly connected to the left side of the support rod, the hinge block pulls the arc rod, and the arc rod pulls the support rod, and the support rod slides along the interference groove, and the support block is driven by the support rod to support the inner wall of the pipe.

[0011] Preferably, the surface of the pressing plate, the surface of the fixing plate and the inner side of the connection box are all provided with abutment grooves.

[0012] Preferably, the number of the support blocks is six groups, and the six groups of support blocks are respectively arranged in a circular array with the center line of the connection box as the axis.

[0013] Preferably, the support rod passes through the interference groove, and the interference rod passes through the square hole. When the pressing plate is pressed, the pressing plate pushes the interference rod to insert into the square hole and interfere with the inclined surface of the inclined surface block.

[0014] Compared with the prior art, the utility model provides a pipe jacking machine for water conservancy projects, which has the following

[0015] Beneficial effects:

[0016] 1. The pipe jacking machine for water conservancy projects, when the pipe collides with the pressing plate, makes the pipe relatively squeeze the pressing plate, when the pressing plate is squeezed, the pressing plate will push the interference rod to insert into the square hole and interfere with the inclined surface of the inclined surface block, thereby driving the inclined surface block to rotate, and when the inclined surface block rotates, the arc spring will be compressed first, and the rotating ring will rotate together, and the rotating ring will drive the hinge block to rotate together when rotating, so that the hinge block pulls the arc rod, and at the same time the arc rod pulls the support rod, and the support rod slides along the interference groove, and then the support block is driven by the support rod to support the inner wall of the pipe, and the support block arranged in six groups of arrays can keep the axis stable without deviation when the pipe is pushed by the connection box.

[0017] 2. When the pipe is pushed by the pressing plate, the six groups of support blocks of the pipe jacking machine used in the water conservancy project tighten the inner side of the pipe, making the pipe more evenly stressed rather than stressed in a single direction, thus avoiding deformation of the pipe due to excessive thrust. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

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

[0020] Figure 3 This is a schematic diagram of the structure of the connection box of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the connection box of the utility model.

[0022] In the figure: 1. bracket; 2. control unit; 21. connection box; 22. fixing plate; 23. square hole; 24. pressing plate; 25. resistance rod; 26. rotating ring; 27. limiting groove; 28. limiting rod; 29. ​​inclined block; 210. arc spring; 211. square plate; 212. hinge block; 213. arc rod; 214. support rod; 215. support block; 216. resistance groove; 217. extrusion spring; 3. bottom plate; 4. cylinder; 5. support rod; 6. slider; 7. circular ring. DETAILED DESCRIPTION

[0023] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a pipe jacking machine for water conservancy projects, including a bracket 1, a bottom plate 3 is fixedly connected to the inner side of the bracket 1, a cylinder 4 and a support rod 5 are fixedly connected to the left side of the bottom plate 3, a slider 6 is passed through and slidably connected to the support rod 5, a ring 7 is fixedly connected to the left side of the support rod 5, and a control part 2 is arranged on the inner side of the bracket 1, and the control part 2 includes: a connecting box 21, a fixing plate 22, a square hole 23, a pressing plate 24, a resistance rod 25, a rotating ring 26, a limiting groove 27, a limiting rod 28, a ramp block 29, an arc spring 210, a square plate 211, a hinge block 212, an arc rod 213, a strut 214, a support block 215, a resistance groove 216, and an extrusion spring 217.

[0024] The right side of the connecting box 21 is fixedly connected to the output shaft of the cylinder 4. When in use, adjust the position of the bracket 1, insert the pipe into the ring 7 and insert the support block 215 into the inner side of the pipe, start the cylinder 4, and the output shaft of the cylinder 4 will push the connecting box 21, so that the connecting box 21 gradually moves in the direction of the pipe. The inner side of the connecting box 21 is fixedly connected with a fixing plate 22, and a square hole 23 is provided on the surface of the fixing plate 22. A reset extrusion spring 217 is fixedly connected to the left side of the fixing plate 22. The connecting box 21 gradually moves in the direction of the pipe. At the same time, the connecting box 21 will drive the extrusion spring 217 to move together through the fixing plate 22, and the extrusion spring 217 will drive the pressing plate 24 to move in the direction of the pipe. The end of the extrusion spring 217 away from the fixing plate 22 is fixedly connected with the pressing plate 24. A resistance rod 25 is fixedly connected to the right side of the pressing plate 24, and the rotating ring 26 is rotatably connected to the inner side of the connecting box 21. A limiting groove 27 is provided on the surface of the rotating ring 26, and a limiting rod 28 is fixedly connected to the inner side of the connecting box 21, and the limiting rod 28 passes through the limiting groove 27. The side of the inclined block 29 close to the rotating ring 26 is fixedly connected to the surface of the rotating ring 26, and an arc spring 210 is fixedly connected to the surface of the inclined block 29, and the end of the arc spring 210 away from the inclined block 29 is fixedly connected to the square plate 211. When the pressing plate 24 is squeezed, the pressing plate 24 will push the resistance rod 25 to insert into the square hole 23 and resist the inclined surface of the inclined block 29, thereby driving the inclined block 29 to rotate. When the inclined block 29 rotates, the arc spring 210 will be compressed first, and the square plate 211 is fixedly connected to the inner wall of the connecting box 21. The inner side of the rotating ring 26 is fixedly connected with a hinge block 212, and the surface of the hinge block 212 is hinged with an arc rod 213. When the rotating ring 26 rotates, it will drive the hinge block 212 to rotate together, so that the hinge block 212 pulls the arc rod 213, and the end of the arc rod 213 away from the hinge block 212 penetrates and is fixedly connected with a support rod 214. The left side of the support rod 214 is fixedly connected with a support block 215. The hinge block 212 pulls the arc rod 213, and the arc rod 213 pulls the support rod 214 at the same time, and the support rod 214 slides along the interference groove 216. At this time, the support block 215 will be driven by the support rod 214 to support the inner wall of the pipeline through the six groups of support blocks 215 arranged in an array. The surface of the pressing plate 24, the surface of the fixed plate 22, and the inner side of the connecting box 21 are all provided with an interference groove 216. The number of the support blocks 215 is six, and the six groups of support blocks 215 are arranged in a circular array with the center line of the connection box 21 as the axis. The support rod 214 passes through the abutment groove 216, and the abutment rod 25 passes through the square hole 23. When the pressing plate 24 is pressed, the pressing plate 24 pushes the abutment rod 25 to insert into the square hole 23 and abut the inclined surface of the inclined surface block 29.

[0025] Based on the above embodiment, when in use, adjust the position of the bracket 1, insert the pipe into the ring 7 and insert the support block 215 into the inner side of the pipe, start the cylinder 4, and the output shaft of the cylinder 4 will push the connection box 21, so that the connection box 21 gradually moves in the direction of the pipe. At the same time, the connection box 21 will drive the extrusion spring 217 to move together through the fixing plate 22, and the extrusion spring 217 will drive the pressing plate 24 to move in the direction of the pipe. When the pipe collides with the pressing plate 24, the pipe will relatively squeeze the pressing plate 24. When the pressing plate 24 is squeezed, the pressing plate 24 will push the contact rod 25 to insert into the square hole 23 and contact The inclined surface of the inclined plane block 29 drives the inclined plane block 29 to rotate. When the inclined plane block 29 rotates, the arc spring 210 will be compressed first, and the rotating ring 26 will rotate together. When the rotating ring 26 rotates, it will drive the hinge block 212 to rotate together, so that the hinge block 212 pulls the arc rod 213, and the arc rod 213 pulls the support rod 214, and the support rod 214 slides along the resistance groove 216. At this time, the support block 215 will be driven by the support rod 214 to support the inner wall of the pipe. Through the six groups of support blocks 215 arranged in an array, the axis of the pipe can remain stable without deviation when it is pushed by the connecting box 21.

[0026] When the pipe is pushed by the pressing plate 24, the six groups of support blocks 215 tighten the inner side of the pipe, so that the pipe is stressed more evenly rather than stressed in a single direction, thereby preventing the pipe from being deformed due to excessive thrust.

[0027] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A pipe jacking machine for hydraulic engineering, comprising a bracket (1), wherein a bottom plate (3) is fixedly connected to the inner side of the bracket (1), characterized in that: The left side of the bottom plate (3) is fixedly connected to a cylinder (4) and a support rod (5), the support rod (5) penetrates and is slidably connected to a slider (6), the left side of the support rod (5) is fixedly connected to a ring (7), and a control unit (2) is provided on the inner side of the bracket (1), and the control unit (2) comprises: A connecting box (21), the right side of the connecting box (21) is fixedly connected to the output shaft of the cylinder (4), the inner side of the connecting box (21) is fixedly connected to a fixing plate (22), a surface of the fixing plate (22) is provided with a square hole (23), the left side of the fixing plate (22) is fixedly connected to a return extrusion spring (217), one end of the extrusion spring (217) away from the fixing plate (22) is fixedly connected to a pressing plate (24), and the right side of the pressing plate (24) is fixedly connected to a resisting rod (25); A rotating ring (26), the rotating ring (26) is rotatably connected to the inner side of the connection box (21), a limiting groove (27) is provided on the surface of the rotating ring (26), a limiting rod (28) is fixedly connected to the inner side of the connection box (21), and the limiting rod (28) passes through the limiting groove (27); An inclined plane block (29), wherein a side of the inclined plane block (29) close to the rotating ring (26) is fixedly connected to the surface of the rotating ring (26), an arc spring (210) is fixedly connected to the surface of the inclined plane block (29), an end of the arc spring (210) away from the inclined plane block (29) is fixedly connected to a square plate (211), and the square plate (211) is fixedly connected to the inner wall of the connection box (21).

2. A pipe jacking machine for water conservancy engineering according to claim 1, characterized in that: The inner side of the rotating ring (26) is fixedly connected with a hinge block (212), the surface of the hinge block (212) is hinged with an arc-shaped rod (213), and one end of the arc-shaped rod (213) away from the hinge block (212) penetrates and is fixedly connected with a support rod (214).

3. A pipe jacking machine for water conservancy projects according to claim 2, characterized in that: The left side of the support rod (214) is fixedly connected with a support block (215).

4. A pipe jacking machine for water conservancy engineering according to claim 2, characterized in that: The surface of the pressing plate (24), the surface of the fixing plate (22) and the inner side of the connection box (21) are all provided with abutment grooves (216).

5. A pipe jacking machine for water conservancy engineering according to claim 3, characterized in that: The number of the support blocks (215) is six groups, and the six groups of support blocks (215) are respectively arranged in a circular array with the center line of the connection box (21) as the axis.

6. A pipe jacking machine for water conservancy engineering according to claim 4, characterized in that: The support rod (214) passes through the abutment groove (216), while the abutment rod (25) passes through the square hole (23).

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